Tennant T20 Operator's Manual
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Tennant T20 Operator's Manual

Rider scrubber
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Download this manual See also: Service Information Manual, Operator's Manual
T20
(Gas / LPG)
Rider Scrubber
Operator Manual
The Safe Scrubbing Alternative
R
Hygenic Fully Cleanable Tanks
R
FloorSmart
Integrated Cleaning System
t
ES Extended Scrub System
R
North America / International
331470
Rev. 05 (5-2009)
*331470*
www.tennantco.com

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Summary of Contents for Tennant T20

  • Page 1 (Gas / LPG) Rider Scrubber Operator Manual The Safe Scrubbing Alternative Hygenic Fully Cleanable Tanks FloorSmart Integrated Cleaning System ES Extended Scrub System North America / International 331470 Rev. 05 (5-2009) *331470* www.tennantco.com...
  • Page 2 Thermo- -Sentry, Touch- -N- -Go, 1- -STEP, Clean- -Wedge, Variable Drain Valve, EasyOpen, Grip- -n- -Go, MaxPro, Dura- -Track, SmartRelease, InstantAccess, Duramer, FaST- -PAK, ErgoSpace and Lower Total Cost of Ownership are US registered and unregistered trademarks of Tennant Company.

  • Page 3: Table Of Contents

    ....ENGINE HARNESS FUSES AND RELAYS ......T20 Gas/LPG 331470 (5- -09)
  • Page 4 ..REPLACING THE SIDE BRUSH SQUEEGEE BLADE (OPTION) . . . LEVELING THE REAR SQUEEGEE ADJUSTING THE REAR SQUEEGEE BLADE DEFLECTION ... . T20 Gas/LPG 331470 (4- -08)

  • Page 5: Safety Precautions

    - - Always follow safety and traffic rules. few seconds after key is turned off. - - Report machine damage or faulty Apply parking brake before leaving operation immediately. machine. - - Follow mixing and handling instructions on chemical containers. T20 Gas/LPG 331470 (4- -08)
  • Page 6 Keep area well ventilated. - - Use cardboard to locate leaking hydraulic fluid under pressure. - - Use Tennant supplied or approved replacement parts. 7. When loading/unloading machine onto/off truck or trailer: - - Turn off machine.
  • Page 7 Located on the side of the EMISSIONS LABEL - - Located on the operator compartment. side of the operator compartment. LPG ENGINE LABEL - - Located next to the ignition switch on the instrument panel. (LPG machines only) T20 Gas/LPG 331470 (9- -06)
  • Page 8 HOT SURFACE LABEL - - Located on the side of the bumper, on the exhaust shield, on the hydraulic reservoir, and on the scrub head (disk head machines only). T20 Gas/LPG 331470 (9- -06)

  • Page 9: Operation

    H. Debris tray carriage release lever S. Solution tank drain hose I. Fuel tank T. Debris tray carriage J. Seat shroud U. Taillights K. FaST carton or ES detergent tank V. Rear squeegee compartment (option) W. Engine cover T20 Gas/LPG 331470 (9- -06)

  • Page 10: Controls And Instruments

    C. Horn button D. Steering column tilt knob E. Directional pedal F. Brake pedal G. Parking brake pedal H. Touch panel I. Operating / Hazard Lights switch J. Spray nozzle switch (option) K. Engine indicator lights T20 Gas/LPG 331470 (9- -06)

  • Page 11: Touch Panel

    G. Solution increase button (+) H. Solution decrease button (- -) I. Brush pressure increase button (+) J. Brush pressure decrease button (- -) K. Side brush button (option) L. Engine speed button M. Supervisor control buttons T20 Gas/LPG 331470 (9- -06)

  • Page 12: Symbol Definitions

    Scrub vac fan/squeegee Charging system 1--STEP scrub Engine oil pressure (000000--001997) ES (extended scrub) Engine oil pressure (001998-- FaST (foam scrubbing) Check engine (000000--001997) Engine speed Horn Side brush Jack point Unleaded fuel only Parking Brake (001998-- T20 Gas/LPG 331470 (5- -09)

  • Page 13: Operation Of Controls

    CHARGING SYSTEM INDICATOR The Charging system indicator comes on when If this indicator comes on, contact a Tennant the alternator is not operating within the normal service representative. range. If this indicator comes on, stop the machine immediately and correct the problem.

  • Page 14: Setting The Engine Speed

    The amount of fuel in the LPG tank. light next to the button will turn off. The machine will default to the last setting used when it is powered on or off. T20 Gas/LPG 331470 (9- -06)

  • Page 15: Hour Meter

    The Supervisor Control buttons are for accessing the configuration and diagnostic modes. Only Press the bottom of the Operating / hazard light properly trained service personnel and TENNANT switch to turn on the hazard light, headlights, and representatives should access these modes.

  • Page 16: Operator Seat

    2. Release the Steering column tilt handle. Increase firmness: Turn the weight adjustment knob clockwise. Decrease firmness: Turn the weight adjustment knob counterclockwise. Use the gauge next to the weight adjustment knob to help determine seat firmness for the operator. T20 Gas/LPG 331470 (9- -06)

  • Page 17: Brake Pedal

    SQUEEGEE PROTECTORS (OPTION) The rear and side squeegee protectors help protect the rear squeegee from being damaged. To engage the rear squeegee protector, pull the pin, lower the protector bar, and reinsert the pin. T20 Gas/LPG 331470 (9- -06)

  • Page 18: How The Machine Works

    When in the conventional Scrub mode, a water important role in determining the type of brushes and detergent mixture is used to scrub the floor. to use. Contact a Tennant representative for specific recommendations. When in the optional FaST (Foam scrubbing)

  • Page 19: While Operating The Machine

    Tufted pad driver -- Standard pad driver has short bristles, or “tufts,” on the back to hold the Perform the Daily Maintenance Procedures after pad in place. This driver works with all Tennant each use (see MACHINE MAINTENANCE in this pads except the black high productivity pad.

  • Page 20: Pre--Operation Checklist

    ES filter. - Check the right solution tank cover seal for damage and wear. - Check the squeegee hose for debris or blockage. - Check the squeegees for damage, wear, and deflection adjustment. T20 Gas/LPG 331470 (9- -06)

  • Page 21: Changing The Lpg Tank

    9. Slowly open the tank service valve and check for leaks. If a leak is found, immediately close the service valve and inform the appropriate personnel. T20 Gas/LPG 331470 (9- -06)

  • Page 22: Starting The Machine

    3. Turn the ignition switch key until the engine ignition switch is turned off. starts. FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, and turn off machine. T20 Gas/LPG 331470 (9- -06)

  • Page 23: Filling The Solution Tank

    TENNANT are conventional cleaning detergents in the representative. solution tank. Drain, rinse, and refill the solution tank with clear cool water before operating the FaST system. Conventional cleaning detergents may cause a FaST system failure. T20 Gas/LPG 331470 (9- -06)

  • Page 24: Es (Extended Scrub) Mode With Auto--Fill

    Do not use ATTENTION: For ES Scrubbing, only use flammable materials in tank(s). recommended low- -foaming cleaning detergents. Machine damage due to the use of improper detergent will void the manufacturer’s warranty. T20 Gas/LPG 331470 (9- -06)

  • Page 25: Setting Scrub Modes

    The machine will default to the last setting used when it is powered on or off. NOTE: When the ES system is turned on there is a slight delay before the ES pump begins operating. T20 Gas/LPG 331470 (9- -06)

  • Page 26: Setting Solution Flow

    The middle setting (two lights) allows solution AND detergent flow. The lowest setting (one light) allows solution flow WITHOUT adding detergent. Detergent does not have to be continuously added with the solution flow to attain effective scrubbing results. T20 Gas/LPG 331470 (9- -06)

  • Page 27: Scrubbing

    Do not pick up. FOR SAFETY: When using machine, go slow on inclines and slippery surfaces. NOTE: The squeegee automatically rises when the machine is driven backwards. This prevents damaging the squeegee. T20 Gas/LPG 331470 (9- -06)

  • Page 28: Double Scrubbing

    FOR SAFETY: When using machine, go slow on inclines and slippery surfaces. Let the cleaning solution soak on the floor for 5--15 minutes. Then place the side squeegee into the lower position and lock into place with the pin. T20 Gas/LPG 331470 (9- -06)

  • Page 29: Water Pickup Mode (No Scrubbing)

    Do not pick up. Press the Scrub vacuum fan/squeegee button. The light above the button will come on, the squeegee will lower, and the vacuum fan will start operating. Pick up the water or non--flammable liquid spill. T20 Gas/LPG 331470 (9- -06)

  • Page 30: Emptying And Cleaning The Debris Tray -- Cylindrical

    2. Press the debris tray carriage release lever. 5. Empty the contents from the debris tray. 6. Remove the debris screen from the debris tray. 7. Rinse the debris screen and the debris tray. 3. Pull the debris tray carriage open. T20 Gas/LPG 331470 (9- -06)
  • Page 31 13. Lift slightly on the debris tray carriage handle and push the debris tray carriage closed until it locks shut. 9. Spray water through the port located inside the vacuum coupling to rinse debris from the debris tray coupling. T20 Gas/LPG 331470 (9- -06)

  • Page 32: Draining And Cleaning The Recovery Tank

    2. Place the recovery tank drain hose nozzle next to a floor drain. NOTE: DO NOT use steam to clean tanks. Excessive heat can damage tanks and components. 5. Remove the vacuum screen from the recovery tank and rinse the screen. T20 Gas/LPG 331470 (9- -06)

  • Page 33: Draining The Recovery Tank With The Drain Plug

    8. Rinse dirt and debris towards the recovery heads only: To avoid water and debris from tank drain. Allow the recovery tank to drain. getting in the debris tray, open the debris carriage and remove the debris tray. T20 Gas/LPG 331470 (9- -06)
  • Page 34 5. Remove the recovery tank drain hose from the back of the recovery tank, then rinse the dirt and debris from the hose into the tank. T20 Gas/LPG 331470 (9- -06)

  • Page 35: Draining And Cleaning The Solution Tank

    10. Machines equipped with cylindrical scrub heads only: Reinstall the debris tray into the debris tray carriage and close the carriage. 11. Close the recovery tank cover. 2. Place the solution tank drain hose nozzle next to a floor drain. T20 Gas/LPG 331470 (9- -06)
  • Page 36 7. Reinstall the solution tank drain hose onto the toward the solution tank drain. back of the recovery tank. 8. Close the solution tank cover(s). 5. Rinse the float sensor and the screen filter. Allow the solution tank to drain. T20 Gas/LPG 331470 (9- -06)

  • Page 37: Fault Indicator(S)

    Connect vacuum hose to (Optional) connected squeegee assembly. F12: Seat Sw Open Operator not in the seat Engine will shut off Engage parking brake (Optional) while engine is running and before leaving the machine. parking brake not engaged T20 Gas/LPG 331470 (5- -09)

  • Page 38: Conditions / Warnings

    C5: No ES/FaST ES and FaST systems unavailable Only machines equipped with ES or FaST system can be operated in these modes. C6: No Side Brush Side brush unavailable Side brush not allowed to operate by itself. T20 Gas/LPG 331470 (9- -06)

  • Page 39: Options

    5. Twist the off/on knob to turn on the wand. 6. When finished cleaning, place the spray nozzle and wand back into their storage locations. 7. Press the bottom of the Spray nozzle switch to turn off the water supply. T20 Gas/LPG 331470 (9- -06)

  • Page 40: Vacuum Wand (Option)

    10. Disassemble the vacuum wand sections and adequate ventilation. Consult with your hose and return them to the storage bag. regulatory authorities for exposure 11. Reattach the vacuum hose to the rear limits. Keep engine properly tuned. coupling. T20 Gas/LPG 331470 (9- -06)

  • Page 41: Power Wand (Option)

    Pull on the hose to ensure it is connected. 8. Press the Scrub vacuum fan/squeegee button. The light above the button will turn on and the vacuum fan will start operating. NOTE: The squeegee will also lower. T20 Gas/LPG 331470 (9- -06)
  • Page 42 15. Reconnect the vacuum hose to the rear squeegee assembly. 16. Disassemble the power wand assembly and return it to the storage bag. T20 Gas/LPG 331470 (9- -06)

  • Page 43: Machine Troubleshooting

    Turn on 1- -STEP Scrub button Improper detergent or brushes Call Tennant service representative Solution tank empty Fill solution tank Debris caught on main brushes Remove debris Worn main brushes Replace brushes Brush pressure set too light Increase brush pressure T20 Gas/LPG 331470 (9- -06)
  • Page 44 ES sensor in tank dirty Clean sensor Clogged ES pump filter Clean ES filter Water level in recovery tank too Fill recovery tank about half full Water level in solution tank too low Fill solution tank T20 Gas/LPG 331470 (9- -06)

  • Page 45: Maintenance

    MAINTENANCE MAINTENANCE T20 Gas/LPG 331470 (9- -06)

  • Page 46: Maintenance Chart

    001500 and above) 13, 20 Tires Check for damage Rear squeegee casters Lubricate Rear squeegee Check leveling Scrub head skirt Check for damage or wear 3, 14 Disk scrub head stop Check for damage or wear bumper T20 Gas/LPG 331470 (3- -07)
  • Page 47 . . . Water and ethylene glycol anti-freeze, --34_ C (--30_ F) . . . Special lubricant, Lubriplate EMB grease (Tennant part number 01433--1) NOTE: More frequent maintenance intervals may be required in extremely dusty conditions. T20 Gas/LPG 331470 (10- -08)

  • Page 48: Lubrication

    The engine oil capacity is is located next to the front wheel support. 3.5 L (3.7 qt) with oil filter. SQUEEGEE CASTER BEARINGS Lubricate the squeegee caster bearings after every 100 hours of operation. T20 Gas/LPG 331470 (9- -06)

  • Page 49: Torque Tubes- -Cylindrical Brushes

    On the other side of the machine the torque tube PIVOT SHAFT- -DISK BRUSHES grease fittings are located beneath the propel Lubricate the pivot shaft after every 200 hours of pump. operation. T20 Gas/LPG 331470 (9- -06)

  • Page 50: Hydraulics

    Tennant hydraulic fluid is specially selected to level of hydraulic fluid in the reservoir. meet the needs of Tennant machines. There are Damage to the machine hydraulic system may two fluids available for different temperature result.

  • Page 51: Hydraulic Hoses

    Serious infection or reaction can occur if proper medical treatment is not given immediately. Contact a mechanic or supervisor if a leak is discovered. Flush the radiator and the cooling system after every 800 hours of operation. T20 Gas/LPG 331470 (9- -06)

  • Page 52: Air Filter

    AIR FILTER Replace the air filter after every 400 hours of operation. Check the radiator hoses and clamps after every 200 hours of operation. Tighten loose clamps. Replace damaged hoses and clamps. T20 Gas/LPG 331470 (9- -06)

  • Page 53: Fuel Filter (Lpg)

    Replace the gasoline fuel filter after every 400 hours of operation. FOR SAFETY: When servicing machine, keep flames and sparks away from fuel system service area. Keep area well ventilated. Location of fuel filter on machines serial number 001499 and below. T20 Gas/LPG 331470 (3- -07)

  • Page 54: Engine Belt

    Do not remove the vent plugs from the battery or add water to the battery. WARNING: Moving belt and fan. Keep away. FOR SAFETY: When servicing machine, avoid contact with battery acid. T20 Gas/LPG 331470 (3- -07)

  • Page 55: Fuses And Relays

    Not Used 12 VDC, 40 A Not Used 12 VDC. 40 A Not Used 12 VDC. 40 A FaST Water Pump (located in FaST harness) 12 VDC. 40 A Spray Wand (located in Spray wand harness) T20 Gas/LPG 331470 (9- -06)

  • Page 56: Engine Harness Fuses And Relays

    Do not wash the pads with a pressure washer. Hang pads, or lay pads flat to dry. NOTE: Always replace brushes and pads in sets. Otherwise one brush or pad will be more aggressive than the other. T20 Gas/LPG 331470 (5- -09)

  • Page 57: Replacing Disk Pads

    9. Close the right outer brush door. 10. Open the left outer brush door and repeat the procedure for the left brush. NOTE: The center brush can only be accessed from the right side of the machine. T20 Gas/LPG 331470 (9- -06)

  • Page 58: Checking The Disk Scrub Head Stop Bumpers

    2. Open the outer brush doors. 3. Inspect the scrub head stop bumpers. Adjust the bumpers if the scrub head is not parallel with the floor. Replace worn or damaged bumpers. T20 Gas/LPG 331470 (5- -09)
  • Page 59 5. Pull the brushes out from the scrub head. 8. Reinstall the brush idler plates. 9. Close the inner and outer brush doors. 10. Check and adjust the brush pattern if needed. Refer to CHECKING CYLINDERICAL BRUSH PATTERN. T20 Gas/LPG 331470 (9- -06)

  • Page 60: Checking Cylinderical Brush Pattern

    6. Observe the brush patterns. If the brush pattern is the same width across the entire length of each brush and both brushes are the same width, no adjustment is necessary. 10653 10355 T20 Gas/LPG 331470 (9- -06)

  • Page 61: Adjusting The Cylinderical Brush Taper

    3. Tighten the mounting bolts. 4. Recheck the pattern. Readjust if necessary. 2. Recheck the pattern. Readjust if necessary. T20 Gas/LPG 331470 (9- -06)

  • Page 62: Side Brush (Option)

    4. Remove the side brush from underneath the side brush assembly. 5. Place the new side brush underneath the side brush assembly and lift the side brush up onto the side brush hub until the brush locks onto the hub. T20 Gas/LPG 331470 (5- -09)

  • Page 63: Fast System

    6. Connect the FaST supply hose to the carton out from the compartment and discard. FaST--PAK hose connector. 7. Scrub with the FaST system for a few minutes to allow the detergent to reach maximum foaming. T20 Gas/LPG 331470 (9- -06)

  • Page 64: Cleaning The Fast Supply Hose Connector

    Empty the solution tank before Remove the filter screen bowl and clean the filter replacing the filters. screen after every 50 hours of operation. Empty the solution tank before removing the filter. T20 Gas/LPG 331470 (4- -08)

  • Page 65: Squeegee Blades

    7. Remove the rear squeegee. 3. Remove both mounting knobs from the rear squeegee assembly. 4. Turn on the machine, raise the scrub head, and turn off the machine. 5. Remove the rear squeegee assembly from the machine. T20 Gas/LPG 331470 (9- -06)
  • Page 66 13. Install the new front squeegee blade or rotate the existing blade to the new edge. Be sure the holes in the squeegee blade are hooked 10. Tighten the rear retaining band tension latch. onto the tabs. T20 Gas/LPG 331470 (9- -06)

  • Page 67: Replacing Or Rotating The Side Squeegee Blades

    17. Check and adjust the rear squeegee if necessary. Refer to ADJUSTING THE REAR SQUEEGEE BLADE DEFLECTION and LEVELING THE REAR SQUEEGEE sections of this manual. 4. Remove the retaining band from the side squeegee assembly. T20 Gas/LPG 331470 (9- -06)

  • Page 68: Replacing The Side Brush Squeegee Blade (Option)

    2. Pull the pin from the squeegee bumper and open the squeegee bumper. 7. Reattach the side squeegee retaining band to the side squeegee assembly. T20 Gas/LPG 331470 (9- -06)

  • Page 69: Leveling The Rear Squeegee

    5. Drive the machine forward with the squeegee down to recheck the squeegee blade deflection if adjustments were made. 6. Readjust the squeegee blade deflection if necessary. T20 Gas/LPG 331470 (9- -06)

  • Page 70: Adjusting The Rear Squeegee Blade Deflection

    12 mm (0.50 in) for scrubbing adjustments are made. smooth floors and 15 mm (0.62 in) for rough floors. 5. Readjust the squeegee blade deflection if necessary. 12 mm (0.50 in) T20 Gas/LPG 331470 (9- -06)

  • Page 71: Skirts And Seals

    The skirts should be between 0 to 6 mm (0 to 0.25 in) from the floor when the scrub head is down. RECOVERY TANK SEAL Check the recovery tank cover seal for damage and wear daily. T20 Gas/LPG 331470 (9- -06)

  • Page 72: Brakes And Tires

    FRONT WHEEL Torque the front wheel nuts twice in the pattern shown to 122 to 149 Nm (90 to 110 ft lb) after the first 50 hours of operation, and after every 800 hours there after. T20 Gas/LPG 331470 (9- -06)

  • Page 73: Pushing, Towing, And Transporting The Machine

    AND is 380 mm (15 in) or less from the ground. 4. To winch the machine onto the truck or trailer, attach the winching chains to the holes in the rear jacking brackets behind the rear tires. T20 Gas/LPG 331470 (9- -06)
  • Page 74 FOR SAFETY: When unloading machine off truck or trailer, use winch. Do not drive the machine off the truck or trailer unless the loading surface is horizontal AND 380 mm (15 in) or less from the ground. T20 Gas/LPG 331470 (9- -06)

  • Page 75: Machine Jacking

    ES or the FaST system in freezing the machine. Jack machine up at designated temperatures requires special procedures. locations only. Support machine with jack Consult a TENNANT representative for more stands. information. T20 Gas/LPG 331470 (8- -07)

  • Page 76: Specifications

    HYDRAULIC SYSTEM System Capacity Fluid Type Hydraulic reservoir 38 L (10 gal) TENNANT part no. 65869 -- above 7_ C (45_ F) Hydraulic total 45 L (12 gal) TENNANT part no. 65870 -- below 7_ C (45_ F) STEERING Type...

  • Page 77: Power Type

    Utilize service brakes, cable actuated TIRES Location Type Size Front (1) Solid 140 mm x 460 mm (5.5 in x 18 in) Rear (2) Solid 90 mm x 410 mm (3.5 in x 16 in) T20 Gas/LPG 331470 (9- -06)

  • Page 78: Fast System

    5.2 CC/Minute (0.17 Liquid Ounces/Minute) Detergent pump (S/N 000000--001742) 12 Volt DC Air pump (S/N 000000--001742) 12 Volt DC, 0.6 Maximum Amp draw Air pump flow rate (S/N 000000--001742) 8.7 LPM (0.3 CFM) open flow T20 Gas/LPG 331470 (4- -08)

  • Page 79: Machine Dimensions

    SPECIFICATIONS MACHINE DIMENSIONS Rear Squeegee 1300 mm (51 in) 1470 mm (58 in) Frame 2410 mm (roller to roller) (95 in) 1270 mm (50 in) Width (with side brush) 1470 mm (58 in) T20 Gas/LPG 331470 (9- -06)
  • Page 80 SPECIFICATIONS T20 Gas/LPG 331470 (4- -08)

  • Page 81: Index

    Draining and Cleaning the Solution Tank, 33 Bypass valve, 71 Draining the Recovery Tank with the Drain Hose, Draining the Recovery Tank with the Drain Plug, Capacities, 74 Changing the LPG Tank, 19 Charging System Indicator, 11 T20 Gas/LPG 331470 (4- -08)
  • Page 82 Torque Tubes (Cylindrical Brushes), 47 Front Wheel, Torque, 70 Torque Tubes (Disk Brushes), 47 Fuel Filter Gasoline, 51 LPG, 51 Fuel Indicator, 12 Fuses and Relays, 53 Engine Harness Fuses and Relays, 54 Relay Panel Fuses and Relays, 53 T20 Gas/LPG 331470 (4- -08)
  • Page 83 Setting Brush Pressure, 23 Pushing, Towing, and Transporting the Machine, Setting Conventional Solution Flow, 24 Setting ES (Extended Scrub) Mode, 23 Pushing or Towing the Machine, 71 Transporting the Machine, 71 Setting ES Solution Flow, 24 T20 Gas/LPG 331470 (4- -08)
  • Page 84 Replacing (or Rotating) the Rear Squeegee Blades, 63 Replacing or Rotating the Side Squeegee Blades, 65 Replacing the Side Brush Squeegee Blade (Option), 66 Squeegee Caster Bearings, 46 Squeegee Protectors (Option), 15 Starting the Machine, 20 T20 Gas/LPG 331470 (4- -08)

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