Page 1 Service Information Manual The Safe Scrubbing Alternative 331555 North America / International Rev. 00 (05-2007) *331555* www.tennantco.com Home Find... Go To..
Page 2 2. (B) Identify the machine serial number from the data plate. Refer to the TENNANT Parts Manual. NOTE: Only use TENNANT Company supplied or equivalent parts. Parts and supplies may be ordered online, by phone, by fax or by mail.
Page 3: Table Of Contents
T15 Service Information Manual Table of Contents (Page 1 of 3) page SAFETY PRECAUTIONS………………………………...………………………….………………………………… vi GENERAL MACHINE INFORMATION Component Locator………………………………...………………………….……………………………… 2 to 11 Touch Panel Detail………………………………...………………………….………………………3 Switches & Circuit Breakers………………………………...………………………….……………4 Specifications………………………………...………………………….…………………………………… 12 to 14 Dimensions & Capacities………………………………...………………………….……………… 12 Performance………………………………...………………………….……………………………… 12 Power Type………………………………...………………………….………………………………13...
Page 4 T15 Service Information Manual Table of Contents (Page 2 of 3) MAINTENANCE & REPAIR (continued) page Solution System………………………………...………………………….………………………………… 88 to 104 Recovery Tank………………………………...………………………….…………………………… 88 To Remove Recovery Tank………………………………...………………………….…… 89 To Install Recovery Tank………………………………...………………………….………… 93 Solution Tank………………………………...………………………….…………………………… 96 To Remove Solution Tank………………………………...………………………….………97 To Install Solution Tank………………………………...………………………….…………101...
Page 5 T15 Service Information Manual Table of Contents (Page 3 of 3) MAINTENANCE & REPAIR (continued) page Steering……………………………………………………………….…...………………………….……… 179 to 189 To Adjust Steering Chain………………………………...………………………….……………… 179 To Replace Steering Chain………………………………...………………………….……………… 180 To Replace Large Steering Sprocket………………………………...………………………….… 181 To Replace Small Steering Sprocket………………………………...………………………….… 182 To Replace Steering Housing Bearings………………………………...………………………….
Page 6: Safety Precautions
5. When servicing machine: This machine is designed solely for scrubbing dirt - - Avoid moving parts. Do not wear loose and dust in an indoor environment. Tennant does jackets, shirts, or sleeves when not recommend using this machine in any other working on machine.
Page 7: General Machine Information
GENERAL MACHINE INFORMATION T15 331555 (05-2007) Home Find... Go To..
Page 8 T15 Component Locator (page 1 of 10) HOUR METER EMERGENCY STOP SWITCH S2 TOUCH PANEL IGNITION SWITCH S1 BRAKE PEDAL & BRAKE SWITCH SW2 THROTTLE PEDAL & THROTTLE SENSOR SWITCH & CIRCUIT BREAKER PANEL PRE-SWEEP SWITCHES S10 & S11 Home Find...
Page 9: Touch Panel Detail
T15 Component Locator (page 2 of 10) Touch Panel Detail Battery discharge indicator Recovery tank full indicator FaST/ES enabled indicator FaST/ES ON/OFF button Squeegee/Vacuum Fan indicator Squeegee/Vacuum Fan ON/OFF button Scrub Head Pressure indicator Scrub System ON/OFF button T15 331555 (05-2007) Home Find...
Page 10: Switches & Circuit Breakers
T15 Component Locator (page 3 of 10) Switches & Circuit Breakers CB7 – 20 Amp Circuit Breaker – Single Vacuum Fan (or) 40 Amp Circuit Breaker – Dual Vacuum Fans (option) S7 – Horn Button S8 – Operating Lights Switch S6 –...
Page 11 T15 Component Locator (page 4 of 10) Switches & Circuit Breakers CB11 – 10 Amp Circuit Breaker – FaST System CB10 – 25 Amp Circuit Breaker – Pre-Sweep System (option) CB12 – 10 Amp Circuit Breaker – Pre-Sweep Side Brush(es)
Page 12 T15 Component Locator (page 5 of 10) FRONT CHANNEL (INSIDE VIEW) PROPEL MACHINE CONTROLLER CONTROL BOARD POWER WAND OPERATING LIGHTS SWITCH S6 SWITCH S8 HORN SWITCH S7 ELECTRICAL PANEL (INSIDE VIEW) CIRCUIT CIRCUIT BREAKERS BREAKERS CB1, CB2, CB7, CB8, CB3, CB4,...
Page 13 T15 Component Locator (page 6 of 10) BATTERIES SEAT SWITCH S3 SCRUB HEAD ACTUATOR ELECTRIC BRAKE SOLENOID PROPEL MOTOR VIEWED UNDER MACHINE (BEHIND SCRUB HEAD) FaST SOLENOID FaST WATER VALVE PUMP FaST DETERGENT PUMP FaST WATER PRESSURE SWITCH FaST AIR PUMP...
Page 14 T15 Component Locator (page 7 of 10) BRUSH MOTORS SHUNT (MIDDLE REAR OF SCRUB HEAD) REAR SCRUB BRUSH MOTOR FRONT SCRUB CYLINDRICAL BRUSH MOTOR SCRUB HEAD LEFT SCRUB BRUSH MOTOR RIGHT SCRUB BRUSH MOTOR BRUSH MOTORS SHUNT DISK SCRUB HEAD...
Page 15 T15 Component Locator (page 8 of 10) RECOVERY TANK FULL FLOAT SWITCH S4 RECOVERY TANK HALF SOLUTION TANK FULL FULL FLOAT SWITCH S5 FLOAT SWITCH S9 ES PUMP T15 331555 (05-2007) Home Find... Go To..
Page 16 T15 Component Locator (page 9 of 10) CONVENTIONAL SOLUTION VALVE SQUEEGEE ACTUATOR POWER WAND PUMP Home Find... Go To.. T15 331555 (05-2007)
Page 17: Component Locator
T15 Component Locator (page 10 of 10) BACK-UP ALARM FLASHING LIGHT HORN (BEHIND HEADLIGHT) PRE-SWEEP COMPONENTS T15 331555 (05-2007) Home Find... Go To..
Page 18: Specifications
Travel Speed 9.6 Km (6 mph) Maximum rated climb and descent angle for transport 8_@ gross weight Maximum rated climb and descent angle for scrubbing Maximum rated climb and descent angle for trailering Home Find... Go To.. T15 331555 (05-2007)
Page 19: Power Type
36 Volt DC, 5A, 5.7 LPM (1.5 GPM) open flow, 45 psi bypass setting Solution flow rate 1.1 LPM (0.30 GPM) Detergent to water dilution ratio 1:1000 Detergent flow rate 1.14 CC/Minute (0.038 Ounces/Minute) T15 331555 (05-2007) Home Find... Go To..
Page 20: Dimensional Drawings
(80.0 in) 1360 mm (53.5 in) 405 mm 1092 mm (43.0 in) (16.0 in) 810 mm 1830 mm (72.0 in) (32.0 in) 915 mm SIDE VIEW (36.0 in) FRONT VIEW 350790 MACHINE DIMENSIONS Home Find... Go To.. T15 331555 (05-2007)
Page 21 T15 Basic Troubleshooting (Page 1 of 2) Problem Cause Remedy Poor sweeping performance Worn brush bristles Replace brushes Sweeping brushes not adjusted Adjust brushes Hopper full Empty hopper Hopper skirts worn or damaged Replace skirts Brush drive failure Check with TENNANT...
Page 22: Basic Troubleshooting
T15 Basic Troubleshooting (Page 2 of 2) Problem Cause Remedy FaST System does not operate FaST switch is turned off Turn on the FaST switch. FaST circuit breaker tripped Determine cause and reset the 15A circuit breaker button Clogged FaST PAK supply hose...
Page 23: Maintenance & Repair
Unknown Cause or Course of Action NOTE: Troubleshooting charts may be shown with optional equipment. The optional equipment may not be specified in these charts. Some machines may not be equipped with all components shown. T15 331555 (05-2007) Home Find... Go To..
Page 24: Maintenance Checkpoints
T15 Maintenance & Repair Maintenance Checkpoints 350790 Home Find... Go To.. T15 331555 (05-2007)
Page 25: Maintenance Chart
..Distilled water . . . Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433--1) ..SAE 90 weight gear lubricant NOTE: Also check procedures indicated (H) after the first 50 hours of operation.
Page 26: Lubrication
STEERING CASTER PIVOT BEARING The steering caster bearing is located on the floorplate. Lubricate with Lubriplate EMB grease (TENNANT part no. 01433--1) every 100 hours. REAR SQUEEGEE CASTERS The rear squeegee casters are located on the back side of the rear squeegee. The rear squeegee casters each have two grease fittings.
Page 27: Batteries
T15 Maintenance & Repair BATTERIES The batteries are designed to hold their power for long periods of time. The lifetime of the batteries is limited to number of charges the batteries receive. To get the most life from the batteries, recharge them immediately when the battery discharge indicator begins to blink.
Page 28: Charging Batteries
T15 Maintenance & Repair Using a hydrometer, measure the specific gravity to determine the charge level and condition of the batteries. If one or more of the battery cells test lower than the other battery cells (0.050 or more), the cell is damaged, shorted, or is near failure.
Page 29 T15 Maintenance & Repair If the level is low, add just enough distilled water to cover the plates. DO NOT OVERFILL. The batteries can overflow during charging due to expansion. NOTE: Make sure the battery caps are in place while charging.
Page 30 7. Plug the battery charger into the wall outlet. NOTE: Refer to the instructions provided by the charger manufacturer for more detailed information. 8. The TENNANT charger will start automatically. When the batteries are fully charged, the TENNANT charger will automatically turn off.
Page 31: To Replace Batteries
T15 Maintenance & Repair TO REPLACE BATTERIES 1. Drive the machine to a flat, dry surface. NOTE: Make sure the area is well ventilated. 2. Turn the machine power off. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF.
Page 32 T15 Maintenance & Repair 5. Pull the rubber battery cable boots back to access the cable end nuts. 6. Remove all of the battery cables. 7. Use the built--in straps to lift and remove each battery. FRONT OF 8. Use a solution of baking soda and water to MACHINE clean the battery compartment area.
Page 33: To Access Control Panel
T15 Maintenance & Repair CONTROL PANEL The control panel houses the directional controller, relays, contactors, and fuses. These components can be accessed by pivoting the control panel mount plate down against the seat support. TO ACCESS CONTROL PANEL FOR SAFETY: Before Leaving Or Servicing Machine;...
Page 34: Control Panel
T15 Maintenance & Repair 3. Lower the seat support. 4. Remove the two screws at the top of the control panel mount plate. 5. Pivot the mount plate down until it is resting against the seat support. Home Find... Go To..
Page 35: Instrument Panel
T15 Maintenance & Repair INSTRUMENT PANEL The instrument panel consists of a touch panel, circuit board, switches, and circuit breakers. The touch panel controls various machine functions. The indicator lights keep the operator informed on machine performance. TO REPLACE TOUCH PANEL FOR SAFETY: Before Leaving Or Servicing Machine;...
Page 36 T15 Maintenance & Repair 3. Remove the six nuts holding the circuit board cover onto the frame. 4. Pull the circuit board cover back to access the circuit board. 5. Un--plug the two ribbon cables from the circuit board. 6. Locate the four touch panel lock clips on the under side of the dash panel.
Page 37 T15 Maintenance & Repair 7. Pull the touch panel bezel up and remove from the machine. 8. Remove the touch panel from the machine. NOTE: Be careful when removing the ribbon cables from the slot in the dash panel. 9. Position the new touch panel on the machine.
Page 38 T15 Maintenance & Repair 12. Connect the ribbon cables to the circuit board. 13. Position the circuit board cover back up to the inside, front wall of the steering support, behind the control panel. 14. Reinstall the six nuts on the circuit breaker cover.
Page 39 T15 Maintenance & Repair 16. Lift the operator seat and reconnect the battery connector at the front of the solution tank. 17. Close the seat support. Start the machine and check for proper operation. T15 331555 (05-2007) Home Find... Go To..
Page 40: To Replace Circuit Board
T15 Maintenance & Repair TO REPLACE CIRCUIT BOARD FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Open the control panel. See TO ACCESS CONTROL PANEL instructions. FOR SAFETY: Disconnect Battery Connections Before Working On machine.
Page 41 T15 Maintenance & Repair 4. Pull the circuit board cover back to access the circuit board. 5. Un--plug the two ribbon cables from the circuit board. 6. Un--plug the three wire connectors from the circuit board. 7. Pop the circuit board off the six plastic stand--offs.
Page 42 T15 Maintenance & Repair 11. Reinstall the six nuts on the circuit board cover. Hand tighten lightly. 12. Pivot the control panel back in position. Reinstall the two screws and tighten to 18 -- 24 Nm (15 -- 20 ft lb).
Page 43: Circuit Breakers
T15 Maintenance & Repair CIRCUIT BREAKERS RESETABLE CIRCUIT BREAKERS Circuit breakers are resetable electrical circuit protection devices designed to stop the flow of current in the event of a circuit overload. Once a circuit breaker is tripped, reset it manually by pressing the reset button after the breaker has cooled down.
Page 44: To Replace Circuit Breaker
T15 Maintenance & Repair TO REPLACE CIRCUIT BREAKER FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Open the control panel. See TO ACCESS CONTROL PANEL instructions. FOR SAFETY: Disconnect Battery Connections Before Working On machine.
Page 45 T15 Maintenance & Repair 5. Remove the metal lock ring from the circuit breaker. The lock ring may have to be cut to remove, or, remove the two screws holding the CB to the panel. 6. Push the circuit breaker out of the mount hole, or, remove the CB from the back of panel.
Page 46 T15 Maintenance & Repair 9. Install the new lock ring on the new circuit breaker, or, reinstall the two screws. Hand tighten. 10. Reconnect the wires to the back of the new circuit breaker. See the schematic in this section.
Page 47: Fuses
T15 Maintenance & Repair FUSES The fuse is a one-time protection device designed to stop the flow of current in the event of a circuit overload. NOTE: Always replace the fuse with a fuse of the same amperage. The fuse is located behind the operator console.
Page 48 T15 Maintenance & Repair 3. Loosen both bolts holding the two power cables to the top and bottom of the fuse and red stand--offs. 4. The fuse has slots on the top and bottom. Slide the fuse up and to the side and remove.
Page 49: Directional Control Pedal
T15 Maintenance & Repair DIRECTIONAL CONTROL PEDAL The directional pedal controls the machine’s direction of travel and propelling speed. The machine’s speed is controlled by the amount of pressure placed on the pedal; the farther the pedal is pressed, the faster the machine will travel.
Page 50: To Replace Propel Motor Controller
T15 Maintenance & Repair TO REPLACE MOTOR CONTROLLER FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Open the control panel. See TO ACCESS CONTROL PANEL instructions. FOR SAFETY: Disconnect Battery Connections Before Working On machine.
Page 51 T15 Maintenance & Repair 4. Remove the three screws and nuts holding the controller to the panel. Remove the controller from the machine. 5. Position the new controller on the panel. Reinstall the screws and nuts. Hand tighten. 6. Reconnect the power cables and electrical wires to the controller.
Page 52: To Replace Taillight Bulb
T15 Maintenance & Repair 8. Lift the operator seat and reconnect the battery connector at the front of the solution tank. 9. Start the machine and check for proper operation of the propelling. TO REPLACE TAILLIGHT BULB 1. Drain the tanks, then remove tank drain caps.
Page 53: Scrub Head
T15 Maintenance & Repair SCRUB HEAD The model T15 can be equipped with either CYLINDRICAL a cylindrical or a disc style scrub head. The scrub head houses the scrub brushes and their drive mechanisms. The scrub head adjustments are factory set and should not be changed unless scrub head parts are damaged or replaced.
Page 54: To Replace Scrub Head Links
T15 Maintenance & Repair TO REPLACE SCRUB HEAD LINKS 1. Start the machine and lower the scrub head to the floor. Shut off the key. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF.
Page 55: To Remove Disc Scrub Head
T15 Maintenance & Repair TO REMOVE DISC SCRUB HEAD 1. Start the machine and lower the scrub head to the floor. Shut off the key. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF.
Page 56 T15 Maintenance & Repair 4. Remove the cotter pin and clevis pin from the scrub head lift mechanism where it attaches to the frame and actuator. 5. Remove the nyloc nut holding the ball joint to the mount bracket on the scrub head. Do this on both sides of the scrub head.
Page 57: To Install Disc Scrub Head
T15 Maintenance & Repair TO INSTALL DISC SCRUB HEAD FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Slide the scrub head under the machine frame with the scrub head link mount holes facing the front.
Page 58 T15 Maintenance & Repair 5. Reconnect the water line to the scrub head 6. Start the machine and raise the scrub head. Operate the machine and check the scrub head for proper operation. Check the scrub brushes for proper rotation.
Page 59: To Replace Disc Scrub Head Brush Motor
T15 Maintenance & Repair TO REPLACE DISC SCRUB HEAD BRUSH MOTOR FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Remove the side squeegees. See TO REPLACE SIDE SQUEEGEE BLADES instructions in the SCRUBBING section.
Page 60 T15 Maintenance & Repair 5. Remove the four screws holding the brush motor to the scrub head. 6. Start the machine and lower the scrub head. Shut off the key. 7. Go in on top of the scrub head and disconnect the scrub brush motor from the main harness.
Page 61 T15 Maintenance & Repair 9. Position the new motor on the scrub head. 10. Reconnect the motor wires to the main electrical harness. See schematic in this section. 11. Start the machine and raise the scrub head. Shut off the key.
Page 62 T15 Maintenance & Repair 13. Install the square key and drive plug on the brush motor shaft. Install the screw and washer in the center of the drive plug. Tighten to 18 -- 24 Nm (15 -- 20 ft lb).
Page 63: To Remove Cylindrical Scrub Head
T15 Maintenance & Repair TO REMOVE CYLINDRICAL SCRUB HEAD 1. Start the machine and lower the scrub head to the floor. Shut off the key. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF.
Page 64 T15 Maintenance & Repair 4. Remove the cotter pin and clevis pin from the scrub head lift mechanism where it attaches to the scrub head. 5. Remove the nyloc nut holding the ball joint to the mount bracket on the scrub head. Do this on both sides of the machine.
Page 65: To Install Cylindrical Scrub Head
T15 Maintenance & Repair TO INSTALL CYLINDRICAL SCRUB HEAD FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Slide the scrub head under the machine frame with the scrub head link mount holes facing the front.
Page 66 T15 Maintenance & Repair 6. Reconnect the water line to the scrub head 7. Start the machine and raise the scrub head. Operate the machine and check the scrub head for proper operation. Check the scrub brushes for pattern and proper rotation. See TO CHECK AND ADJUST CYLINDRICAL BRUSH PATTERN instructions.
Page 67: To Replace Cylindrical Scrub Head Brush Motor
T15 Maintenance & Repair TO REPLACE CYLINDRICAL SCRUB HEAD BRUSH MOTOR FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Remove the side squeegees. See TO REPLACE SIDE SQUEEGEE BLADES instructions in the SCRUBBING section.
Page 68 T15 Maintenance & Repair 4. Go in on top of the scrub head and disconnect the scrub brush motor from the main harness. Note the orientation of wire to motor. 5. Loosen the front and rear pivot mount bolts on the brush motor.
Page 69 T15 Maintenance & Repair 8. Remove the two screws holding the brush motor to the pivot bracket. Remove the brush motor from the machine. 9. Loosen the set screws holding the cogged pulley to the brush motor shaft. Slide the pulley off the shaft.
Page 70 T15 Maintenance & Repair 13. Align the top pulley with the bottom drive plug. Make sure the belt is in the center of the top pulley. Tighten the set screws tight. NOTE: Use loctite 242 blue on the threads. 14. Use the hex screw under the brush motor to tension the belt.
Page 71 T15 Maintenance & Repair 17. Reinstall the belt cover. Tighten the screws to 11 -- 14 Nm (7 -- 10 ft lb). Apply a small amount of RTV sealant on the flange of the belt cover to keep dust out of the cogs of the belt.
Page 72: To Replace Brush Drive Belt
T15 Maintenance & Repair CYLINDRICAL BRUSH DRIVE BELT The two brush drive belts are located on the cylindrical brush scrub head. The belts drive the cylindrical brushes. Proper belt tension is a 3 mm (0.1 in) deflection from a force of 1.1 to 1.2 kg (2.5 to 2.7 lb) at the belt midpoint.
Page 73 T15 Maintenance & Repair 3. Remove the two screws holding the belt cover to the scrub brush motor. Remove the belt cover from the scrub head. 4. Loosen the two pivot bolts on the bottom of the brush motor. 5. Loosen the belt tension bolt under the brush motor.
Page 74 T15 Maintenance & Repair 8. Slip the new drive belt into position. Push the rest of the drive belt up toward the motor belt pulley. Slip the drive belt over the motor belt pulley. 9. Reinstall the brush drive plug. Install the drive belt over the drive plug.
Page 75: Cylindrical Brush Drive Belt
T15 Maintenance & Repair 13. Reinstall the belt cover. Tighten the screws to 11 -- 14 Nm (7 -- 10 ft lb). 14. Reinstall the scrub brushes. See TO REPLACE CYLINDRICAL SCRUB BRUSHES instructions. 15. Operate the machine and check the scrub brushes for proper operation.
Page 76: Scrub Head Floor Skirts
T15 Maintenance & Repair DISC SCRUB HEAD SKIRTS SCRUB HEAD FLOOR SKIRTS The scrub head floor skirts control water spray from the brushes. The skirts are located in front and rear of the scrub head. Check these skirts for wear and damage after every 50 hours of operation.
Page 77: Disc Scrub Head Skirts
T15 Maintenance & Repair TO REPLACE DISC SCRUB HEAD SKIRTS 1. Start the machine and lower the scrub head to the floor. Shut off the key. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF.
Page 78: Cylindrical Brush Head Debris Tray
T15 Maintenance & Repair CYLINDRICAL BRUSH HEAD DEBRIS TRAY The cylindrical style scrub head is equipped with a rear mounted debris tray. Small debris is picked up by the two cylindrical scrub brushes and deposited in the debris tray located behind the rear scrub brush.
Page 79 T15 Maintenance & Repair 4. Grasp the plastic debris tray and pivot the bottom up, away from the back of the scrub head. Pivot the debris tray far enough to allow the rubber skirt to clear the scrub head. 5. Pull the debris tray straight out to the right until it is free of the scrub head lip.
Page 80: To Install Debris Tray
T15 Maintenance & Repair TO INSTALL DEBRIS TRAY 1. Lower the scrub head to the floor. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 2. Position the debris tray, opening facing forward, on the lip on the back of the scrub head.
Page 81: To Replace Debris Tray Skirt
T15 Maintenance & Repair TO REPLACE DEBRIS TRAY SKIRT 1. Remove the debris tray. See TO REMOVE DEBRIS TRAY instructions. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 2. Remove the six screws, washers, and nuts holding the debris tray skirt and retainer to the top lip of the tray.
Page 82: Scrub Brushes
T15 Maintenance & Repair SCRUB BRUSHES The machine can be equipped with either disk or cylindrical scrub brushes. Check scrub brushes daily for wire or string tangled around the brush or brush drive hub. Also check for brush damage and wear.
Page 83 T15 Maintenance & Repair 5. Place the new scrub brush on the floor in front of the scrub head. Push the brush under the scrub head. 6. Line up the brush drive socket with the drive plug. 7. While pressing the brush spring clip together with your thumb and index finger, lift the scrub brush onto the drive plug.
Page 84: Cylindrical Scrub Brushes
T15 Maintenance & Repair CYLINDRICAL SCRUB BRUSHES Check the brush taper and rotate the brushes from front-to-rear every 50 hours of machine operation for maximum brush life and best scrubbing performance. The cylindrical brushes should be replaced if large amounts of bristles are missing, or if the remaining bristle length is less than 10 mm (0.38 in).
Page 85 T15 Maintenance & Repair Pull the old brush out of the scrub head. Position the brush with the double row end towards you. Guide the new brush onto the drive hub. 6. Insert the Idler plug (on the inside of the idler door), into the brush.
Page 86: To Check And Adjust Cylindrical Brush Pattern
T15 Maintenance & Repair TO CHECK AND ADJUST CYLINDRICAL BRUSH PATTERN 1. Apply chalk (or another material that will not easily blow away), to a smooth, level section of the floor. Lower the scrub head in the chalked area. Allow the machine to scrub in the same place for 15 to 20 seconds.
Page 87 T15 Maintenance & Repair If one, or both of the brush patterns are tapered, the brushes need adjustment to straighten the brush pattern. 10356 1. To adjust brush taper, push downward on the mounting spring and idler door until the top of the door releases from the scrub head.
Page 88 T15 Maintenance & Repair 3. Turn the idler shaft to raise or lower the end of the brush as needed to straighten the brush pattern. Tighten the mounting screw. 4. Check the brush patterns again and readjust as necessary until both patterns are the same.
Page 89 T15 Maintenance & Repair SCRUB HEAD LIFT ACTUATOR The lift actuator is an electric device that, with a push of a switch, raises and lowers the scrub head. T15 331555 (05-2007) Home Find... Go To..
Page 90: To Replace Scrub Head Lift Actuator
T15 Maintenance & Repair TO REPLACE SCRUB HEAD LIFT ACTUATOR 1. Start the machine and lower the scrub head to the floor. Shut off the machine. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF.
Page 91 T15 Maintenance & Repair 5. Tie the seat up. Remove the screw holding the seat prop rod to the bottom of the seat support. Remove the prop rod from the lock slot. 6. Locate the lift actuator spring mount bracket.
Page 92 T15 Maintenance & Repair 9. Position the new actuator on the spring mount bracket. Install the clevis and cotter pins. 10. Position the new actuator and spring mount bracket in the machine. Slide the assembly down the into the mount bracket. Route the wires and plug in the connector.
Page 93: Scrub Head Lift Actuator
T15 Maintenance & Repair 13. Reinstall the prop rod in the bracket and on the bottom of the seat support. Snug the screws and nut so the rod can still pivot. 14. Go in on top of the scrub head and install...
Page 94: Solution System
T15 Maintenance & Repair SOLUTION SYSTEM RECOVERY TANK The recovery tank holds recovered solution. Clean and drain the recovery tank after each use. The outside of the tank can be cleaned with vinyl cleaner. ES mode: Flush out the recovery tank with clean water.
Page 95: To Remove Recovery Tank
T15 Maintenance & Repair TO REMOVE RECOVERY TANK FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. In order to remove the recovery tank, the solution tank hardware must be loosened or removed first. See TO REMOVE SOLUTION TANK instructions.
Page 96 T15 Maintenance & Repair 6. Remove the screw on the left side of the solution tank drain cap. 7. Open the tank cover. Remove the hardware holding the top of the prop arm to the tank cover. 8. Pull the vacuum hose out of the hole in the recovery tank.
Page 97 T15 Maintenance & Repair 10. Remove the two screws holding the vacuum fan to the top of the recovery tank. Pull the vacuum fan up and disconnect the electrical plug. Remove the vacuum fan from the machine. 11. Remove the hardware holding the air flush valve and bracket to the recovery tank.
Page 98 T15 Maintenance & Repair 14. Disconnect the float switch electrical plug from the main harness. NOTE: Make sure to note the orientation of the electrical harness before removing the solution tank. It is very important to position the harness in the same location when installing a new tank.
Page 99: To Install Recovery Tank
T15 Maintenance & Repair TO INSTALL RECOVERY TANK FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Position the recovery tank on the left side edge of the machine frame. 2. Connect the hose coming from the ESt pump to the nipple on the side of the recovery tank.
Page 100 T15 Maintenance & Repair 6. Install the screw holding the left front of the recovery tank to the frame in the area of the operators compartment. Leave loose for now. 7. Install the air flush valve mount bracket on the front of the recovery tank. Tighten all three screws to 18 -- 24 Nm (15 -- 20 ft lb).
Page 101 T15 Maintenance & Repair 10. Reconnect the top of the prop arm to the tank cover. 11. Reinstall the plastic, rear drain splash tray over the tank drains. Tighten the four screws. 12. Reinstall the tank drain hose and caps.
Page 102: Solution Tank
T15 Maintenance & Repair SOLUTION TANK The solution tank holds the cleaning solution. If deposits form on the bottom of the tank, rinse the tank and with a strong blast of warm water. ES option: The solution tank should be drained and cleaned daily.
Page 103: To Remove Solution Tank
T15 Maintenance & Repair TO REMOVE SOLUTION TANK FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. In order to remove the solution tank, the recovery tank must be removed first. See TO REMOVE RECOVERY TANK instructions.
Page 104 T15 Maintenance & Repair 5. Remove the two screws holding the front of the solution tank to the seat support. 6. If the machine is equipped with an overhead guard----it must be removed. 7. Make sure the solution tank is drained and the tank clean out caps removed.
Page 105 T15 Maintenance & Repair 10. Open the tank cover. Remove the hardware holding the top of the prop arm to the tank cover. 11. Remove the plastic tank cover hinge rod. Remove the tank cover from the machine. 12. Remove the hardware holding the air flush valve and bracket to the solution tank.
Page 106 T15 Maintenance & Repair 15. Lift the solution tank up far enough to access the clamp on the hose running from the bottom of the solution tank to the water valve. Loosen this clamp and remove the hose from the solution tank.
Page 107: To Install Solution Tank
T15 Maintenance & Repair TO INSTALL SOLUTION TANK FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Position the solution tank on the right side edge of the machine frame. 2. Connect the hose coming from the water valve to the nipple on the bottom of the solution tank.
Page 108 T15 Maintenance & Repair 6. Install the two screws holding the front of the solution tank to the seat support. Leave loose for now. 7. Install the air flush valve mount bracket on the side of the solution tank. Tighten all four screws to 18 -- 24 Nm (15 -- 20 ft lb).
Page 109 T15 Maintenance & Repair 10. Reinstall the tank cover and plastic hinge rod. 11. Reconnect the top of the prop arm to the tank cover. 12. Reinstall the plastic, rear drain splash tray over the tank drains. Tighten the four screws.
Page 110 T15 Maintenance & Repair 14. Reinstall the battery in the right, rear corner of the battery compartment. 15. Reinstall the battery connector mount bracket on the front of the solution tank. Tighten the two screws to 18 -- 24 Nm (15 -- 20 ft lb).
Page 111: To Replace Solution Valve
T15 Maintenance & Repair MANUAL SOLUTION VALVE The manual solution valve is located under the floor plate on the left side of the machine. This valve controls the amount of water being sent to the scrub brushes. The control lever is located in the operators compartment, next to the operators left leg.
Page 112 T15 Maintenance & Repair 3. Go under the machine on the left side. 4. Locate the manual solution valve above the scrub head. 5. Remove the cotter pin from the control lever rod where it attaches to the valve. Pop the rod out of the mount hole.
Page 113: Manual Solution Valve
T15 Maintenance & Repair 8. Remove the fittings from the old valve and install in the new valve in the same orientation. 9. Remove the lever from the old valve and install it on the new valve in the same orientation.
Page 114: To Replace Solution Solenoid Valve
T15 Maintenance & Repair SOLUTION SOLENOID VALVE The solution solenoid valve is used to start and stop the flow of water to the scrub head when the machine is either propelling forward or in neutral. This valve is used along with the manual valve, which controls the amount of water that flows to the scrub head.
Page 115 T15 Maintenance & Repair 3. Go under the machine on the left side, in front of the rear tire. 4. Locate the solution solenoid valve in the area of the manual valve. 5. Mark and disconnect the wires leading to the solenoid valve.
Page 116: Solution Solenoid Valve
T15 Maintenance & Repair 7. Remove the two screws holding the valve to the machine frame. Remove the valve from the machine. 8. Position the new solenoid valve in the machine. Reinstall the hardware and lightly hand tighten. 9. Re--connect the two water hoses to the new valve.
Page 117: Fast System
T15 Maintenance & Repair FaST SYSTEM FaST SUPPLY HOSE CONNECTOR The FaST supply hose connector is located below the FaST PAK holder. Soak the connector in warm water if detergent buildup is visible. When a FaST PAK carton is not installed, store the supply hose connector on the storing plug to prevent the hose from clogging.
Page 118: To Replace Es Pump
T15 Maintenance & Repair ESt PUMP TO REPLACE ESt PUMP FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Make sure the solution and recovery tanks are empty. 2. Remove the vacuum fan assembly. See TO REMOVE VACUUM FAN ASSEMBLY instructions.
Page 119 T15 Maintenance & Repair 4. Disconnect the ESt pump from the main electrical harness. 5. Loosen the worm drive clamps holding the solution hoses to the ESt pump. Pull the hoses off the pump fittings. 6. Loosen the large worm drive clamp holding the pump to the bracket.
Page 120: Es Pump
T15 Maintenance & Repair 9. Install the new ESt pump on the mount bracket. Reinstall the large worm drive clamp and hand tighten tight. 10. Place both solution hoses onto the pump fittings. Hand tighten the worm drive clamps. 11. Reconnect the pump to the main electrical harness.
Page 121: Squeegees
T15 Maintenance & Repair SQUEEGEES The rear squeegee assembly channels water into the vacuum fan suction. The front blade channels the water, and the rear blade wipes the floor. Check the squeegee blades for damage and wear daily. Rotate or replace either of the squeegee blades if the leading edge is torn or worn half-way through the thickness of the blade.
Page 122 T15 Maintenance & Repair 3. Remove the squeegee suction hose from the squeegee. 4. Remove both squeegee mounting knobs. 5. Pull the squeegee off the machine. Home Find... Go To.. T15 331555 (05-2007)
Page 123: To Install Rear Squeegee Assembly
T15 Maintenance & Repair TO INSTALL REAR SQUEEGEE ASSEMBLY 1. Make sure the squeegee pivot is lowered. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 2. Place the squeegee under the squeegee pivot.
Page 124: To Level Rear Squeegee
T15 Maintenance & Repair TO LEVEL REAR SQUEEGEE Leveling of the squeegee assures even contact for the length of the squeegee blade with the surface being scrubbed. Make sure this adjustment is done on an even, level floor. 1. Turn the machine power on.
Page 125 T15 Maintenance & Repair 4. Look at the deflection of the squeegee over the full length of the squeegee blade. 5. If the deflection is not the same over the full length of the blade, turn the squeegee leveling knob to make adjustments.
Page 126: To Adjust Rear Squeegee Blade Deflection
T15 Maintenance & Repair TO ADJUST REAR SQUEEGEE BLADE DEFLECTION Deflection is the amount of curl the squeegee blade has when the machine moves forward while the squeegee lowered to the floor. The best deflection is when the squeegee wipes the floor just dry with a minimum amount of deflection.
Page 127 T15 Maintenance & Repair 4. Turn the machine power off. 5. To adjust the amount of deflection, turn the squeegee deflection cams clockwise to decrease the blade deflection. NOTE: Turn the squeegee deflection cams counter- -clockwise to increase blade deflection.
Page 128: Rear Squeegee Casters
REAR SQUEEGEE CASTERS The rear squeegee casters each have two grease fittings. Lubricate the pivot point and caster bearing on each squeegee caster with Lubriplate EMB grease (TENNANT part no. 01433--1) every 50 hours. TO ADJUST REAR SQUEEGEE GUIDE ROLLER On the left end of the squeegee is a guide roller that guides the squeegee blade end along a wall.
Page 129: To Replace Or Rotate Rear Squeegee (Rear) Blade
T15 Maintenance & Repair REAR SQUEEGEE BLADES The rear squeegee has two squeegee blades, the front and rear. Each blade has four wiping edges. To use them all, start with one wiping edge. To use the next wiping edge, rotate the blade end-for-end.
Page 130 T15 Maintenance & Repair 3. Loosen the two retainer knobs, one at each end of the squeegee. 4. Pull off the rear retaining band. 5. Pull off the rear squeegee blade. 6. Insert the rotated or new squeegee blade and then insert the retainer band.
Page 131: To Replace Or Rotate Rear Squeegee (Front) Blade
T15 Maintenance & Repair TO REPLACE OR ROTATE REAR SQUEEGEE (FRONT) BLADE 1. Make sure the squeegee is raised off the floor. 2. Turn the machine power off. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF.
Page 132 T15 Maintenance & Repair 5. Loosen the two remaining knobs on top of the squeegee assembly. 6. Pull the retainer plate back and pull out the front squeegee blade of the squeegee frame. 7. Insert the rotated or new squeegee blade in the squeegee frame, lining up the slots in the blade with the tabs on the retainer plate.
Page 133 T15 Maintenance & Repair 10. Install the squeegee assembly on the squeegee pivot. See TO INSTALL SQUEEGEE ASSEMBLY instructions. 11. Adjust the squeegee blade leveling and deflection as stated in TO LEVEL SQUEEGEE and ADJUST SQUEEGEE BLADE DEFLECTION instructions. T15 331555 (05-2007) Home Find...
Page 134: Rear Squeegee Wheel Cams
T15 Maintenance & Repair REAR SQUEEGEE WHEEL CAMS The squeegee wheel cams adjust the squeegee deflection along the entire length of the squeegee. There is a wheel cams at either end of the squeegee. Increase deflection: Turn the cams counter-clockwise.
Page 135: To Replace Rear Squeegee Lift Cable
T15 Maintenance & Repair TO REPLACE REAR SQUEEGEE LIFT CABLE 1. Lower the squeegee to the floor. 2. Make sure the solution tank is drained and the tank clean out caps removed. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF.
Page 136 T15 Maintenance & Repair 5. Remove the cotter pin and long clevis pin from just behind the lift cable drum. 6. Remove the cotter pin and clevis pin from the end of the lift cable where it attaches to the squeegee frame. Remove the cable from the machine.
Page 137 T15 Maintenance & Repair 9. Reinstall the long clevis pin and cotter pin in the mount hole just behind the lift cable drum. 10. Reinstall the plastic, rear drain splash tray. Hand tighten the mounting hardware. 11. Reinstall the tank caps.
Page 138: Side Squeegee Blades
T15 Maintenance & Repair SIDE SQUEEGEE BLADES The side squeegees control water spray and channel water into the path of the rear squeegee. Check the side squeegees for damage and wear daily. Replace the side squeegee blades if they become damaged or lose their shape.
Page 139: Rear Squeegee Blades
T15 Maintenance & Repair TO REPLACE SIDE SQUEEGEE BLADES 1. Raise the scrub head. 2. Turn the machine power off. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 3. Remove the cotter pin, clevis pin, deflector and the retainer bracket from the side squeegee.
Page 140 T15 Maintenance & Repair SQUEEGEE LIFT ACTUATOR The lift actuator is an electric device that, with a push of a switch, raises and lowers the rear squeegee. Home Find... Go To.. T15 331555 (05-2007)
Page 141: To Replace Rear Squeegee Lift Actuator
T15 Maintenance & Repair TO REPLACE REAR SQUEEGEE LIFT ACTUATOR 1. Start the machine and lower the rear squeegee. Shut off the machine. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 2. Disconnect the squeegee lift actuator from the main electrical harness.
Page 142 T15 Maintenance & Repair 6. Remove the cotter pin and clevis from the tube end of the lift actuator. 7. Remove the actuator from the machine. 8. Position the new actuator on the squeegee weldment and the tube end into the pivot weldment.
Page 143: Squeegee Lift Actuator
T15 Maintenance & Repair 11. Position the squeegee mount channel and squeegee assembly back into position on the back of the machine frame. Reinstall the four screws. Tighten to 37 -- 48 Nm (26 -- 34 ft lb). 12. Reconnect the squeegee lift actuator to the main electrical harness.
Page 144: To Remove Vacuum Fan Assembly
T15 Maintenance & Repair VACUUM FAN The vacuum fan, when activated, creates air flow in the recovery tank. With the recovery tank cover closed, the air flow from the vacuum fan creates vacuum at the squeegee vacuum hose. This vacuum pulls water from the lowered squeegee into the recovery tank.
Page 145 T15 Maintenance & Repair 3. Remove the two screws holding the vacuum fan to the top of the tank. Pull the vacuum fan assembly out of the top of the tank. Let it rest on the edge of the tank.
Page 146: To Install Vacuum Fan Assembly
T15 Maintenance & Repair TO INSTALL VACUUM FAN ASSEMBLY FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Open the recovery/solution tank cover. 2. Position the vacuum fan assembly on the edge of the recovery tank.
Page 147 T15 Maintenance & Repair 5. Install the two screws and tighten to 18 -- 24 Nm (15 -- 20 ft lb). 6. Close the tank cover and operate the machine. Check the vacuum fan for proper operation. T15 331555 (05-2007) Home Find...
Page 148: To Replace Vacuum Fan
T15 Maintenance & Repair TO REPLACE VACUUM FAN FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Remove the vacuum fan assembly from the machine. See TO REMOVE VACUUM FAN ASSEMBLY instructions in the SCRUBBING section.
Page 149: Vacuum Fan
T15 Maintenance & Repair 4. Reinstall the three screws and brackets. Tighten the hardware only until the gasket starts to compress. NOTE: On a machine equipped with the HD vacuum fan option, there is two fans and three added brackets and screws.
Page 150: Pre-Sweep Brushes
T15 Maintenance & Repair PRE- -SWEEP BRUSHES The Pre--Sweep assembly is equipped with disk and cylindrical brushes. Check the brushes daily for wire or string tangled around the brush or brush drive hub. Check the brushes daily for damage and wear.
Page 151 T15 Maintenance & Repair 4. Pull the cotter pin from the end of the retaining pin. Remove the side brush retaining pin from the side brush drive shaft. 5. Remove the old side brush. 6. Slide the new side brush onto the side brush drive shaft.
Page 152: Pre-Sweep Cylindrical Brush
T15 Maintenance & Repair PRE- -SWEEP CYLINDRICAL BRUSH Check the brush taper every 50 hours of machine operation for maximum brush life and best sweeping performance. The cylindrical brush should be replaced if large amounts of bristles are missing, or if the remaining bristle length is less than 10 mm (0.38 in).
Page 153 T15 Maintenance & Repair 6. Observe the shape of the brush pattern. If the brush pattern has parallel sides, the brush does not need adjustment. 10355 If the brush pattern is tapered, the brush needs adjustment to straighten the brush pattern.
Page 154: Replacing The Pre-Sweep Cylindrical Brush
T15 Maintenance & Repair D. Check the brush pattern again and readjust as necessary until the width of the pattern is the same along the length of the brush pattern. 10355 REPLACING THE PRE--SWEEP CYLINDRICAL BRUSH 1. Turn the machine power on.
Page 155 T15 Maintenance & Repair 5. Loosen and remove the four brush housing door knobs. Set the brush housing idler plate aside. 6. Remove the cylindrical brush and replace with a new brush. 7. Guide the slotted end of the new brush onto the drive hub.
Page 156: Pre-Sweep Skirts And Seals
T15 Maintenance & Repair SKIRTS AND SEALS PRE- -SWEEP SIDE SKIRTS (OPTION) The Pre--Sweep side skirts help direct debris into the debris hopper. The side skirts are located on both sides of the main sweeping brush in the Pre--Sweep assembly. The side skirts should be just touching the floor.
Page 157: Pre-Sweep Brush Drive Belt
T15 Maintenance & Repair PRE- -SWEEP BRUSH DRIVE BELT (OPTION) The Pre--Sweep brush drive belt is located inside the Pre--Sweep assembly on the right side of the cylindrical brush. The belt drives the cylindrical brush. Proper belt tension is a 2 mm (.08 in) deflection from a force of 0.76 to 0.8 kg (1.7 to 1.8...
Page 158: Static Drag Strap
T15 Maintenance & Repair STATIC DRAG STRAP The static drag strap prevents the buildup of static electricity in the machine. The strap is attached to the rear squeegee mounting channel. Make sure the strap is always touching the floor. STEERING GEAR CHAIN The steering gear chain is located directly above the front tire.
Page 159: Rear Tires And Wheels
T15 Maintenance & Repair REAR TIRES AND WHEELS The rear tires on the model T15 are semi--pneumatic. The rear tire and wheel assemblies are idler wheels only, they have no braking capabilities. TO REMOVE REAR TIRE FOR SAFETY: Before Leaving Or Servicing Machine;...
Page 160: To Install Rear Tire
T15 Maintenance & Repair TO INSTALL REAR TIRE FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Position the wheel assembly in the machine. (short side of hub toward outside) Raise the tire up and align the hole in the wheel bearing with the axle hole in the frame.
Page 161: To Replace Rear Wheel Bearings
T15 Maintenance & Repair TO REPLACE REAR WHEEL BEARINGS FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Remove the rear wheel assembly. See TO REMOVE REAR TIRE instructions. 2. Remove the three lug nuts holding the bearing housing to the wheel assembly.
Page 162 T15 Maintenance & Repair 5. Reinstall the wheel on the bearing housing. (coining on wheel facing lug nuts) Tighten the three lug nuts to 58 -- 76 Nm (43 -- 56 ft lb). NOTE: The lug nuts must face the outside of the machine.
Page 163: Front Tire And Wheel
T15 Maintenance & Repair FRONT TIRE AND WHEEL, AND WHEEL DRIVE SUPPORT The front drive assembly controls the forward and reverse movement of the machine along with the braking and steering. The brake is released electrically and uses a sprocket and chain assembly for the steering.
Page 164 T15 Maintenance & Repair 3. Mark and remove the electrical cables leading to the drive motor. 4. Go in operators compartment and loosen the lower steering shaft mount screws. 5. Pull the mount back to give the steering chain slack. Locate and remove the master link and steering chain.
Page 165: To Install Front Drive Assembly
T15 Maintenance & Repair TO INSTALL FRONT DRIVE ASSEMBLY FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Raise the seat support and unplug the battery connectors. 2. Raise the front of the machine and place jack stands under the frame.
Page 166: Propel Motor Service
T15 Maintenance & Repair Propel Motor Service Exploded View Description TIRE PULLER KIT (EXTRACTORS+GUIDES) RED POLYURETHANE WHEEL 300X100 COMPLETE MOTOR ASSEMBLY CONNECTION BOX BRAKE ROTOR BRUSH KIT (4 PCS.) COMPLETE ELECTROMAGNETIC BRAKE WITH LEVER General information Oil type : AGIP BLASIA 150 Oil quantity : 130g (4.5 oz)
Page 167: Terminal Connections
T15 Maintenance & Repair Propel Motor Service Terminal Connections Field - (white wire) Field + (black wire) To S2 on Propel Controller To S1 on Propel Controller To P8 on Propel Controller (27/GRN) To switched To M- on Propel To switched B+ (A1)
Page 168: Electric Brake Disassembly
T15 Maintenance & Repair Propel Motor Service Electric Brake Disassembly (page 1 of 4) 1) Remove the protective metal cover 2) Remove the fan Home Find... Go To.. T15 331555 (05-2007)
Page 169 T15 Maintenance & Repair Propel Motor Service Electric Brake Disassembly (page 2 of 4) 3) Remove 3 screws 4) Remove the parking brake T15 331555 (05-2007) Home Find... Go To..
Page 170 T15 Maintenance & Repair Propel Motor Service Electric Brake Disassembly (page 3 of 4) 5) Remove the snap ring 6) Remove the hub Home Find... Go To.. T15 331555 (05-2007)
Page 171 T15 Maintenance & Repair Propel Motor Service Electric Brake Disassembly (page 4 of 4) 7) Remove the key Reverse steps to reassemble T15 331555 (05-2007) Home Find... Go To..
Page 172: Brake Disk Replacement
T15 Maintenance & Repair Propel Motor Service Brake Disk Replacement Armature disc Brake disc Remove the 3 screws and replace the brake disc. The brake disc must be changed when it reaches 50% wear. The new brake disc has a thickness of 2.2mm, and must be changed when it is worn down to 1.1mm.
Page 173: Tire Replacement
T15 Maintenance & Repair Propel Motor Service Tire Replacement (page 1 of 4) 1) Remove 4 screws from the hub WARNING : Lift the machine so that the tire is not touching the ground. 2) Screw the 4 puller screws into the...
Page 174 T15 Maintenance & Repair Propel Motor Service Tire Replacement (page 2 of 4) 3) Remove 6 screws 4) Remove the plastic hub cover and the hub Home Find... Go To.. T15 331555 (05-2007)
Page 175 T15 Maintenance & Repair Propel Motor Service Tire Replacement (page 3 of 4) 5) Remove the tire and install new tire. Check the position of the hub with the inner disc during mounting using the 2 guides in the TIRE PULLER KIT 6) Install the wheel by using a plastic mallet.
Page 176 T15 Maintenance & Repair Propel Motor Service Tire Replacement (page 4 of 4) 7) Torque screws: Qty.6 M6x30 = 15Nm (11 ft/lb) Qty.4 M8x20 = 22Nm (16 ft/lb) 8) Install plastic cover Home Find... Go To.. T15 331555 (05-2007)
Page 177: Commutator Brush Replacement
T15 Maintenance & Repair Propel Motor Service Commutator Brush Replacement (page 1 of 3) 1) Remove 2 screws, then remove connection box cover 2) Remove 4 screws then remove motor WARNING: Protect components from dirt while disassembled T15 331555 (05-2007) Home Find...
Page 178 T15 Maintenance & Repair Propel Motor Service Commutator Brush Replacement (page 2 of 3) 3) Remove nut, washer, and brush 4) Install new brushes – be sure brushes move freely in brush holder Home Find... Go To.. T15 331555 (05-2007)
Page 179 T15 Maintenance & Repair Propel Motor Service Commutator Brush Replacement (page 3 of 3) 5) Reverse steps to reassemble NOTE: CHECK BRUSHES EVERY 1000 hours Brush length new = 19 mm Brush wear limit = 9 mm T15 331555 (05-2007) Home Find...
Page 180: To Replace Drive Assembly Caster Bearing And Thrust Washers
T15 Maintenance & Repair TO REPLACE DRIVE ASSEMBLY CASTER BEARING AND THRUST WASHERS FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Remove the drive assembly from the machine. See TO REMOVE FRONT DRIVE ASSEMBLY instructions.
Page 181 T15 Maintenance & Repair Remove the cotter pin and castle nut from the upper swivel plate weldment. Remove the flat washer and cone bearing from the bottom swivel plate. Lift the bottom swivel plate off the upper swivel plate weldment.
Page 182 T15 Maintenance & Repair Reinstall the bottom swivel plate on the upper swivel plate weldment. Make sure the grease seal is in place on the upper swivel plate weldment. Reinstall the bearing cone and flat washer on the bottom swivel plate. Make sure the bearing cone is greased.
Page 183: To Replace Drive Assembly Pivot Cone Bearing
T15 Maintenance & Repair TO REPLACE DRIVE ASSEMBLY PIVOT CONE BEARING FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Remove the drive assembly from the machine. See TO REMOVE FRONT DRIVE ASSEMBLY instructions.
Page 184 T15 Maintenance & Repair Remove the flat washer and old cone bearing from the bottom swivel plate. Install the new cone bearing and flat washer on the bottom swivel plate. Make sure the new cone bearing is greased. Reinstall the castle nut and tighten to 200 Nm (150 ft lbs).
Page 185: Steering
T15 Maintenance & Repair STEERING The steering on the model T15 is controlled with two sprockets and one chain. A large diameter sprocket is mounted on the top of the front drive assembly and a small diameter sprocket is mounted on the bottom of the steering shaft. The steering chain runs around both of these sprockets.
Page 186: To Replace Steering Chain
T15 Maintenance & Repair TO REPLACE STEERING CHAIN FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Raise the seat support and unplug the battery connectors. 2. Raise the front of the machine and place jack stands under the frame.
Page 187: To Replace Large Steering Sprocket
T15 Maintenance & Repair TO REPLACE LARGE STEERING SPROCKET FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Remove the drive assembly from the machine. See TO REMOVE FRONT DRIVE ASSEMBLY instructions. 2. Remove the four hex screws holding the pivot and sprocket assembly to the drive assembly.
Page 188: To Replace Small Steering Sprocket
T15 Maintenance & Repair TO REPLACE SMALL STEERING SPROCKET FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Raise the seat support and unplug the battery connectors. 2. Raise the front of the machine and place jack stands under the frame.
Page 189 T15 Maintenance & Repair 7. Loosen the set screws holding the small sprocket to the lower shaft. Slip the small sprocket off the shaft. 8. Install the new small sprocket on the lower steering shaft. Firmly tighten the set screws.
Page 190: To Replace Steering Housing Bearings
T15 Maintenance & Repair TO REPLACE STEERING HOUSING BEARINGS FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Jack up the front of the machine at the jack point. Install jack stands under the machine frame.
Page 191 T15 Maintenance & Repair 6. Go under the machine and locate the small steering chain sprocket. 7. Locate the master link on the steering chain. Remove the master link and steering chain from the small steering sprocket. 8. Remove the steering housing from the machine.
Page 192 T15 Maintenance & Repair 10. Loosen the set screw holding the small steering sprocket to the bottom of the short steering shaft. Remove and retain small sprocket and woodruff key. 11. Use an arbor press to press the short steering shaft and two bearings out of the housing.
Page 193 T15 Maintenance & Repair 16. Reinstall the steering housing in the machine. Reinstall the two hex screws. Leave loose for now. 17. Position the long steering shaft and steering wheel into the top of the steering U--joint. Tighten the set screws tight.
Page 194: To Replace Steering U-Joint
T15 Maintenance & Repair TO REPLACE STEERING U- -JOINT FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Jack up the front of the machine at the jack point. Install jack stands under the machine frame.
Page 195 T15 Maintenance & Repair 5. Install the new U--joint and square key on the top of the steering housing. Tighten the set screws tight. 6. Position the long steering shaft and steering wheel into the top of the steering U--joint.
Page 196: Seat
T15 Maintenance & Repair SEAT OPERATOR SEAT The standard operators seat is a fixed back style. The seat can be adjusted forward and backward. The operator seat is equipped with a switch that prevents the machine from propelling unless someone is sitting on it.
Page 197 T15 Maintenance & Repair 3. Lift the seat assembly slightly and remove the prop rod from the slot in the prop rod bracket. 4. Slide the seat assembly to the right until is off the two mount pins. Remove the seat assembly from the machine.
Page 198: To Install Seat Assembly
T15 Maintenance & Repair TO INSTALL SEAT ASSEMBLY FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Position the seat assembly in the operators compartment. 2. Line up the two hinge pins on the seat assembly and seat support.
Page 199: To Adjust Seat Position
T15 Maintenance & Repair TO ADJUST SEAT POSITION FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, turn key switch OFF. 1. Sit down on the seat in the operators compartment. 2. Grasp the adjustment lever in the front center of the seat.
Page 200: Pushing,Towing,And Transporting The Machine
T15 Maintenance & Repair PUSHING, TOWING, AND TRANSPORTING THE MACHINE PUSHING OR TOWING THE MACHINE If the machine becomes disabled, it can be pushed or towed from the front or rear. The parking brake must be disabled before towing or pushing the machine. To disable the brake, pull the brake release lever to the guard and use a cable tie to secure the lever to the guard.
Page 201 T15 Maintenance & Repair 2. If the loading surface is not horizontal or is higher than 380 mm (15 in) from the ground, use a winch to load machine. If the loading surface is horizontal AND is 380 mm (15 in) or less from the ground, the machine may be driven onto the truck or trailer.
Page 202: Machine Jacking
T15 Maintenance & Repair The rear tie-down locations are the holes in the sides of the machine frame near the rear bumper. 6. If the loading surface is not horizontal or is higher than 380 mm (15 in) from the ground, use a winch to unload machine.
Page 203: Storage Information
5. The antifreeze does not need to be drained from the solution tank. NOTE: Storing or transporting machines equipped with the ES or FaST system in freezing temperatures requires special procedures. Consult a TENNANT representative for more information. T15 331555 (05-2007) Home Find... Go To..
Page 204 Home Find... Go To.. T15 331555 (05-2007)
Page 205: Electrical
Unknown Cause or Course of Action NOTE: Troubleshooting charts may be shown with optional equipment. The optional equipment may not be specified in these charts. Some machines may not be equipped with all components shown. T15 331555 (05-2007) Home Find... Go To..
Page 206 T15 Electrical Schematic (Page 1 of 3) 1037934 T15 331555 (05-2007) Home Find... Go To..
Page 207 T15 Electrical Schematic (Page 2 of 3) 1037934 T15 331555 (05-2007) Home Find... Go To..
Page 208: Electrical Schematics
T15 Electrical Schematic (Page 3 of 3) FaST System 1037934 Home Find... Go To.. T15 331555 (05-2007)
Page 209 T15 Harness Drawings (Page 1 of 8) T15 331555 (05-2007) Home Find... Go To..
Page 210 T15 Harness Drawings (Page 2 of 8) Home Find... Go To.. T15 331555 (05-2007)
Page 211 T15 Harness Drawings (Page 3 of 8) T15 331555 (05-2007) Home Find... Go To..
Page 212 T15 Harness Drawings (Page 4 of 8) T15 331555 (05-2007) Home Find... Go To..
Page 213 T15 Harness Drawings (Page 5 of 8) 354542, 354548 Ref. Serial Number Description Qty. (000000-- Harness, Main [T15] (000000-- Cable, 06ga 07.0l Blk .28ring /.34ring (000000-- Cable, 06ga 11.0l Blk .28ring /.34ring (000000-- Cable, 06ga 07.0l Blk .34ring /.34ring (000000--...
Page 214 T15 Harness Drawings (Page 6 of 8) FaST Harness 354214 Ref. Serial Number Description Qty. (000000-- Harness (000000-- Diode, Ele, Plug Home Find... Go To.. T15 331555 (05-2007)
Page 215 T15 Harness Drawings (Page 7 of 8) Pre- - Sweep Wire Harness Ref. Serial Number Description Qty. (000000-- Harness, Swpr (000000-- Diode,Ele,Plug (000000-- Tie,Cable,6.0l,1.25d T15 331555 (05-2007) Home Find... Go To..
Page 216: Harness Drawings
T15 Harness Drawings (Page 8 of 8) Side Brush Wire Harness 353425 - - NA Ref. Serial Number Description Qty. (000000-- Harness, Sba, Rh (000000-- Harness, Sba, Retrofit (000000-- Diode, Ele, Plug (000000-- Tie, Cable, 6.0l, 1.25d Max Home Find... Go To..
Page 217: Electrical Symbols & Terms
N.C. Normally Closed diode N.O. Normally Open Extended Scrub Connector Pin FaST Foam Scrubbing Technology Resistor Fuse S or SW Switch Hour Meter Solenoid Valve Light Emitting Diode Vacuum Relay Coil Volts DC T15 331555 (05-2007) Home Find... Go To..
Page 218: Key Switch
T15 Key Switch START KEY SWITCH OFF POSITION START KEY SWITCH RUN POSITION START KEY SWITCH Spring loaded-Returns to “RUN" when released START POSITION SWITCH TERMINAL MARKING START “ . ” Indicates a common connection Common connections in various switch positions should be less than 1 Home Find...
Page 219: Key Off Power Distribution
T15 Key OFF Power Distribution Conditions: Key OFF 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 13/BLK 1/RED TO CIRCUIT 1/RED 2/ORA BREAKER CB7 TO CIRCUIT 4/YEL BREAKER CB8 1/RED 4/YEL TO CIRCUIT 4/YEL BREAKER CB9...
Page 220: Key Start Power Distribution
T15 Key START Power Distribution Conditions: Key in START 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 13/BLK 1/RED MACHINE CONTROL BOARD TO CIRCUIT 1/RED 2/ORA BREAKER CB7 TO CIRCUIT 4/YEL BREAKER CB8 1/RED 4/YEL TO CIRCUIT...
Page 221: Key On Power Distribution
T15 Key ON Power Distribution Conditions: Key in RUN (after START) 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 13/BLK 1/RED TO CIRCUIT 1/RED 2/ORA BREAKER CB7 MACHINE CONTROL BOARD TO CIRCUIT 4/YEL BREAKER CB8 1/RED...
Page 222: Power Up Troubleshooting
T15 Power Up Troubleshooting OPERATION: Key switch to to start position-- Current flows into key switch terminal 50 Current flows out of key switch terminal 15, turning on M1 contactor and powering up the machine. Release key to run position- - Current flows through closed M1 contacts, into key switch pin 30.
Page 223: Touch Panel Wiring
T15 Touch Panel Wiring BATTERIES GROUND +36VDC 6VDC 6VDC 6VDC 6VDC 6VDC 6VDC 13AF/BLK 6A/BLU FWD SENSE P4- -6 P4- -10 P4- -7 REV SENSE P5- -3 P4- -11 P5- -2 10A/YEL POWER P3- -2 P5- -1 SHIELD 13A/BLK 10B/YEL...
Page 224: Touch Panel Troubleshooting
T15 Touch Panel Troubleshooting OPERATION OF LED’S: P2-- 1 = Supplies +5VDC to each LED P2 -- through P2 -- 1 will light an LED if they are pulled to ground by the control board OPERATION OF SWITCHES: P1-- 1 = Supplies ground to each switch...
Page 225: Scrub Brushes On
T15 Scrub Brushes ON Conditions: Key ON, operator on seat, scrubbing system ON, propel forward or reverse 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 13/BLK 1/RED 62/BLU 13/BLK TO CIRCUIT 1/RED 2/ORA BREAKER CB7 RIGHT BRUSH...
Page 226: Vacuum Fan(S) On & Squeegee Down
T15 Vacuum Fan(s) ON & Squeegee DOWN Conditions: Key ON, squeegee/vacuum ON, propel forward or neutral, recovery tank NOT FULL 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 13/BLK 1/RED TO CIRCUIT 4/YEL BREAKER CB8 1/RED...
Page 227: Vacuum Fan(S) Off & Squeegee Up
T15 Vacuum Fan(s) OFF & Squeegee UP Conditions: Key ON, scrubbing system OFF or squeegee/vacuum OFF or reverse propel or recovery tank FULL 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 6 VDC 13/BLK 1/RED TO CIRCUIT 4/YEL...
Page 228: Vacuum Fan Troubleshooting
T15 Vacuum Fan Troubleshooting OPERATION: To enable the vacuum fan, the following conditions must occur-- 1.-- Vacuum fan/squeegee system selected on the touch panel 2.-- Machine in neutral or forward position 3.-- No ”low battery” condition sensed 4.-- No ”full recovery tank” condition sensed VACUUM MOTOR TURNS ON: 1.-- 11/BRN is switched to ground at control board P3-- 12,...
Page 229 T15 Vacuum Fan Troubleshooting (cont'd) CONTINUED FROM PREVIOUS PAGE CONTINUED FROM PREVIOUS PAGE RUN MANUAL MODE TO RUN INPUT TEST THE LOADS TEST MODE --- HOLD ES/FaST BUTTON --- HOLD SCRUB BUTTON --- TURN KEY ON --- TURN ON KEY...
Page 230: Squeegee Troubleshooting
T15 Squeegee Troubleshooting OPERATION: To lower the squeegee actuator, the following conditions must occur-- 1.-- Vacuum fan/squeegee system selected on the touch panel 2.-- Machine in neutral or forward position 3.-- No ”low battery” condition sensed 4.-- No ”full recovery tank” condition sensed SQUEEGEE ACTUATOR EXTEND OR RETRACT: 1.-- 16/YEL at P3-- 10 and 17/GRY at P3-- 15 are both at battery...
Page 231 T15 Squeegee Troubleshooting (cont'd) CONTINUED FROM PREVIOUS PAGE CONTINUED FROM PREVIOUS PAGE RUN MANUAL MODE TO RUN INPUT TEST THE LOADS TEST MODE --- HOLD ES BUTTON --- HOLD SCRUB BUTTON --- TURN KEY ON --- TURN ON KEY --- RELEASE BUTTON AFTER...
Page 232: Scrub Head Down & Conventional Solution Valve On
T15 Scrub Head DOWN & Conventional Solution Valve ON Conditions: Key ON, operator on seat, scrubbing system ON, recovery tank NOT FULL, propel forward or reverse MACHINE CONTROL BOARD 15/PUR P3-13 10/YEL CONVENTIONAL SOLUTION VALVE P3-9 P4-3 10/YEL 41/BLU 24/GRY...
Page 233: Scrub Head Up
T15 Scrub Head UP Conditions: Key ON, scrubbing system OFF or recovery tank FULL MACHINE CONTROL BOARD 15/PUR P3-13 10/YEL CONVENTIONAL SOLUTION VALVE P3-9 P4-3 10/YEL 41/BLU 24/GRY 13/BLK HOUR METER RECOVERY TANK FULL SWITCH P3-4 19/GRN 18/BRN SCRUB HEAD ACTUATOR...
Page 234: Forward Propel
T15 Forward Propel Conditions: Key ON, operator on seat, throttle depressed for forward travel SWITCHED B+ BLACK FROM M1B PROPEL CONTROLLER PROPEL MOTOR PROPEL MOTOR BLACK BLACK WHITE BLACK FIELD WHITE BLACK 66/BLU 27/GRN 42/BRN EMERGENCY ELECTRIC BRAKE STOP SWITCH...
Page 235: Reverse Propel
T15 Reverse Propel Conditions: Key ON, operator on seat, throttle depressed for reverse travel SWITCHED B+ BLACK FROM M1B PROPEL CONTROLLER PROPEL MOTOR PROPEL MOTOR BLACK BLACK WHITE BLACK FIELD WHITE BLACK 66/BLU 27/GRN 42/BRN EMERGENCY ELECTRIC BRAKE STOP SWITCH...
Page 236: Neutral (No Propel) With Brake Pedal Depressed
T15 Neutral (No Propel) with Brake Pedal Depressed Conditions: Key ON, operator on seat, throttle NOT depressed, brake pedal depressed SWITCHED B+ BLACK FROM M1B PROPEL CONTROLLER PROPEL MOTOR PROPEL MOTOR BLACK BLACK WHITE BLACK FIELD WHITE BLACK 66/BLU 27/GRN...
Page 237: Diagnostics And Troubleshooting
T15 Propel Controller (page 1 of 3) DIAGNOSTICS AND TROUBLESHOOTING The propel controller provides diagnostics information to assist technicians in troubleshooting drive system problems. The diagnostics information can be obtained by the fault codes issued by a Status LED. Refer to the Propel Controller Troubleshooting Chart for suggestions covering a wide range of possible faults.
Page 238 T15 Propel Controller (page 2 of 3) PROPEL CONTROLLER TROUBLESHOOTING CHART PROGRAMMER FAULT CATEGORY CODE LCD DISPLAY POSSIBLE CAUSE FAULT CLEARANCE NO KNOWN FAULTS 1. Abnormal vehicle operation causing Cycle KSI. If problem CURRENT SHUNT FAULT high current spikes. persists, replace controller.
Page 239: Propel Controller
T15 Propel Controller (page 3 of 3) PROPEL CONTROLLER TROUBLESHOOTING CHART, cont'd PROGRAMMER FAULT CATEGORY CODE LCD DISPLAY POSSIBLE CAUSE FAULT CLEARANCE 1. Battery voltage < undervoltage cutback. When voltage rises above LOW BATTERY VOLTAGE 2. Corroded battery terminal. undervoltage cutoff point.
Page 240: Operating Lights
T15 Operating Lights (option) Conditions: Key ON 13/BLK 37/BLU 81/GRN 81/GRN 6/BLU OVERHEAD LIGHT SWITCH GUARD LIGHT 13/BLK 81/GRN SHROUD LIGHT 13/BLK 81/GRN LEFT HEADLIGHT 13/BLK 81/GRN RIGHT HEADLIGHT 13/BLK 81/GRN LEFT TAIL LIGHT 13/BLK 81/GRN RIGHT TAIL LIGHT T15 Horn ON...
Page 241: Extended Scrub (Es) System On
T15 Extended Scrub (ES) System ON (option) Conditions: Key ON, scrubbing system ON, ES system ON, recovery tank HALF FULL or more, solution tank NOT FULL MACHINE CONTROL BOARD RECOVERY TANK HALF FULL SWITCH P3-1 P4-2 10/YEL 13/BLK 38/ORA 23/GRN...
Page 242 T15 ES System Troubleshooting OPERATION: When ES system selected on the touch panel and input floats are in the proper position Recovery tank is 1/2 full = S---5 is closed Solution tank NOT full = S---9 is opened P3---14 is switched to ground, turning on the ES pump...
Page 243: Es System Troubleshooting
T15 ES System Troubleshooting (cont'd) CONTINUED FROM PREVIOUS PAGE DOES ES LIGHT TURN OFF WHEN S--- 5 IS 23/GRN, 13R/BLK, OPEN ? (FLOAT DOWN) OR S--- 5 FLOAT SWITCH IS OPEN S--- 5 IS SHORTED WITH THE FLOAT DOWN OR...
Page 244: Es Filter Flush Troubleshooting
T15 ES Filter Flush Troubleshooting OPERATION: To enable the ESt flush system- -- -the vacuum fan and ESt system must be turned on P3--1 will switch to ground for 5 seconds every 45 seconds----turning on SV--2 Every time SV--2 is turned on an air burst clears...
Page 245: Pre-Sweep System On
T15 Pre-Sweep System ON (option) Conditions: Key ON, sweeping system ON, propel forward SWITCHED B+ MACHINE CONTROL FROM CB6 BOARD P4-8 50/TAN BATTERY 10/YEL P3-6 93/ORA 13/BLK NEGATIVE TO PROPEL 42/BRN 93/ORA CONTROLLER PIN P14 13/BLK 95/GRN RIGHT SWEEP Provides Battery negative...
Page 246: Pre-Sweep Dust Control On
T15 Pre-Sweep Dust Control ON (option) Conditions: Key ON, sweeping system ON, propel forward DUST CONTROL PUMP MACHINE CONTROL BOARD P4-4 43/ORA 10/YEL 49/WHT P4-12 10/YEL 49/WHT DUST CONTROL 43/ORA SHUT-OFF VALVE SWITCHED B+ 96/BLU 43/ORA FROM M5B 13/BLK 43/ORA...
Page 247: Fast System On
T15 FaST System ON Conditions: Key ON, scrubbing system ON, operator on seat, propel forward, recovery tank NOT FULL MACHINE CONTROL BOARD P3-14 56/BLU 20/GRY 55/GRN P4-3 13/BLK 24/GRY FaST RELAY RECOVERY TANK FULL SWITCH FaST The Detergent Pump is pulsed once RELAY every approximately 1.5 seconds...
Page 248 T15 Battery Charger Troubleshooting (Page 1 of 5) Battery Charger Troubleshooting Guide (Single LED Model) Delta-Q’s QuiQ charger is designed for a long, trouble-free service life. Occasionally, the user may encounter abnormal operation which can usually be corrected by following the procedures in this guide.
Page 249: Fault Indications
T15 Battery Charger Troubleshooting (Page 2 of 5) Fault Indications: Fault LED Flashes (Red) Explanation and Solution High Battery Voltage Detected • Check that the battery charger voltage is consistent with the battery pack voltage. The first two digits of the four digit model name indicate the battery voltage the charger supports.
Page 250 T15 Battery Charger Troubleshooting (Page 3 of 5) • Try the charger on a good battery. • If this fault occurs the battery pack is likely in poor condition. Try to recover the pack with a charger that can charge the individual cells –...
Page 251 T15 Battery Charger Troubleshooting (Page 4 of 5) • Confirm battery connections are good. • The nominal voltage for a lead acid battery is 2 V per cell. For example, a 48V battery will have 48/2 = 24 cells. •...
Page 252: Battery Charger Troubleshooting
T15 Battery Charger Troubleshooting (Page 5 of 5) Delta-Q Technologies QuiQ Charger Troubleshooting Flow Chart Disconnect charger from batteries and connect to AC Power Does the Charger Turn Ensure 90- 260VAC at Charger Input Does the Charger Turn Charger Input Failure -...
Page 253: Machine Control Board Connectors
T15 Machine Control Board Connectors 15 PIN CONNECTOR (P3) input or inactive output active voltage voltage pin # wire # color function/component controlled orange output SV2 ES filter flush solenoid yellow input open 36 VDC power black input Power ground...
Page 254: Propel Controller Connectors
T15 Propel Controller Connectors 16 PIN CONNECTOR input or inactive output active voltage voltage pin # wire # color function/component controlled empty empty empty empty empty yellow input 0 to 5 VDC open Throttle position signal empty blue output Electric solenoid brake...
Page 255 T15 Operating & Configuration Modes (Page 1 of 12) Configuration modes are designed for use by a technician for setup purposes. Mode Entry Sequence / Indicator Function / Notes NORMAL 1) Turn key switch to the start position, Default mode for general operation of machine.
Page 256: Normal Mode
T15 Operating & Configuration Modes (Page 2 of 12) Mode Entry Sequence / Indicator Function / Notes NORMAL 1) Turn key switch to the start position, Default mode for general operation of machine. MODE then release key. NORMAL MODE The purpose of the normal mode is for the general operation of the machine. The machine will normally start in this mode.
Page 257 T15 Operating & Configuration Modes (Page 3 of 12) NORMAL MODE (continued) BATTERY GAUGE The battery gauge displays the state of charge of the batteries with a 4 segment LED display. When the last segment is blinking, the battery voltage is about 31.5 volts (80% discharge), and the batteries need charging.
Page 258: Self-Test Mode
T15 Operating & Configuration Modes (Page 4 of 12) Mode Entry Sequence / Indicator Function / Notes SELF 1) Press and hold the Tests the operation of the Machine Control Board TEST “Squeegee/Vacuum Fan” button. and exercises all of its outputs. When this mode...
Page 259: Squeegee/Scrub Button Pressed
T15 Operating & Configuration Modes (Page 5 of 12) SELF TEST MODE (continued) SELF TEST ERROR CODES - To interrogate the machine to determine the nature of a diagnostic failure, the technician must use the buttons on the instrument panel. A group of error codes are associated to each button on the instrument panel.
Page 260: Troubleshooting
T15 Operating & Configuration Modes (Page 6 of 12) SELF TEST MODE TROUBLESHOOTING IF ERROR READS = ”BRUSH CONTACTOR OUTPUT” (ES BUTTON HELD, DOWN PRESSURE LED #4 IS LIT) --- DISCONNECT 12A/GRN AT M3 AND RERUN SELF TEST --- NO ERROR NOW = REPLACE M3...
Page 261 T15 Operating & Configuration Modes (Page 7 of 12) SELF TEST MODE TROUBLESHOOTING (cont'd) IF ERROR READS = ”ZERO BRUSH CURRENT” (AND BRUSH MOTORS DID NOT TURN ON DURING SELF TEST) --- RUN MANUAL MODE (SEE PAGE 4--- 62 )
Page 262: Manual Mode
T15 Operating & Configuration Modes (Page 8 of 12) Mode Entry Sequence / Indicator Function / Notes MANUAL 1) Press and hold the “ES” or “FaST” Allows the technician to exercise individual MODE button. functions on the machine. This mode disregards 2) Turn key switch to the start position, the effects of various interlocks.
Page 263: Enable/Disable Chart
T15 Operating & Configuration Modes (Page 9 of 12) T15 331555 (05-2007) Home Find... Go To..
Page 264: Input Display Mode
T15 Operating & Configuration Modes (Page 10 of 12) Mode Entry Sequence / Indicator Function / Notes INPUT 1) Press and hold the “Scrub” button. Allows the technician to observe the effectiveness DISPLAY 2) Turn key switch to the start position,...
Page 265: Restricted Down Pressure Mode
T15 Operating & Configuration Modes (Page 11 of 12) Mode Entry Sequence / Indicator Function / Notes RESTRICTED 1) Press and hold both the “Squeegee/ Toggles the machine between normal and a DOWN Vacuum Fan” and “Scrub” buttons. restricted down pressure setting. The normal...
Page 266: Operating & Configuration Modes
T15 Operating & Configuration Modes (Page 12 of 12) Mode Entry Sequence / Indicator Function / Notes SOFTWARE 1) Press and hold both the “Squeegee/ Displays the machine’s software revision date. REVISION Vacuum Fan” and “ES/FaST” buttons. Each sequence of flashes is separated by a...
Page 267 We Need Your Help... As part of Tennant’s Zero Defects Program, we want to know about errors you have found or suggestions you may have regarding our machine manuals. If you find an error or have a suggestion, please complete this postage-paid form and mail it to us.
Page 268 Home Find... Go To.. T15 331555 (05-2007)
Page 269 We Need Your Help... As part of Tennant’s Zero Defects Program, we want to know about errors you have found or suggestions you may have regarding our machine manuals. If you find an error or have a suggestion, please complete this postage-paid form and mail it to us.
Page 270: Home Find
Home Find... Go To.. T15 331555 (05-2007)

Tennant T15 Service Information Manual

Safety Precautions

General Machine Information

Maintenance & Repair

MAINTENANCE & REPAIR (Continued)

Solution System

Manual Solution Valve

Solution Solenoid Valve

Fast System

ES Pump

Squeegees

Rear Squeegee Blades

Squeegee Lift Actuator

Vacuum Fan

Pre-Sweep Brushes

Pre-Sweep Skirts and Seals

Pre-Sweep Brush Drive Belt

Static Drag Strap

Tires

MAINTENANCE & REPAIR (Continued)

Electrical

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Troubleshooting

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Summary of Contents for Tennant T15