Tennant 275 Series II Operator's Manual
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Tennant 275 Series II Operator's Manual

Tennant 275 Series II Operator's Manual

Sweeper/scrubber
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Summary of Contents for Tennant 275 Series II

  • Page 1 275 Series II (Operator Manual) Sweeper/ Scrubber Home Find... Go To..
  • Page 2 This manual is furnished with each new TENNANTr Model 275 Series II. It provides necessary operating and preventive maintenance instructions. Read this manual completely and understand the machine before operating or servicing it. This manual covers all machine variations and standard accessories. The tabbed instruction portion of the manual consists of the Specification, Operation, Maintenance, and Appendix sections.

  • Page 3: About This Manual

    The section also has a illustration of the top and side view of the machine with the height and width dimensions displayed. 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 4 You also serial number; such as (00000---002345). can order any of the individual parts listed under the parking brake if it is the only part you need. 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 5 These are the supplier breakdowns. The engine breakdown contains both supplier and TENNANT parts numbers for repair parts. Breakdowns for hydraulic and electrical components have TENNANT part numbers for the parts TENNANT supplies.
  • Page 6 ABOUT THIS MANUAL 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 7: General Information

    -- Use care when backing machine. WARNING: Falling hopper. Engage hopper -- Do not carry riders on machine. support bar before working under hopper. -- Always follow safety and traffic rules. 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 8 WARNING: Battery acid causes severe burns. Avoid contact. Wash immediately and get medical attention if contact occurs. WARNING: Stay clear of hopper lift arms when they are in motion. WARNING: Keep away from fan. 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 9 UNDERSIDE OF BUMPER, LOW DUMP MODEL ONLY. 02745 NOISE LABEL -- LOCATED ON FRONT RIGHT OF HEAVY BUMPER LABEL -- LOCATED ON OPERATOR COMPARTMENT. UNDERSIDE OF BUMPER, LOW DUMP MODEL ONLY. 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 10 OF OPERATOR COMPARTMENT. HOPPER LIFT ARMS, MULTI-LEVEL DUMP MODEL ONLY. 02745 EMISIONS LABEL -- LOCATED ON LEFT SIDE OF HOPPER SUPPORT BAR LABEL -- LOCATED ON OPERATOR COMPARTMENT. HOPPER SUPPORT BAR. 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 11: Table Of Contents

    ..... . 2-27 TO INSTALL SNOW BLADE ..2-27 TO OPERATE SNOW BLADE ..2-28 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 12 ....3-19 CYLINDER HEAD ....3-33 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 13 HOPPER COVER SEAL ....3-56 HOPPER VACUUM FAN SEAL ..3-56 275 SERIES II MM190 (6--- 90) Home Find... Go To..
  • Page 14 ....8-11 Fig. 49 --- Labels Group ....5-76 275 SERIES II MM190 (12--- 89) viii Home Find... Go To..
  • Page 15 Fig. 52 --- Fuel System Group, DS ..8-58 Fig. 9 --- Distributor Group ....10-18 275 SERIES II MM190 (6--- 90) Home Find... Go To..
  • Page 16 ....14-1 TENNANT COMPANY LIMITED WARRANTY 14-3 TENNANT COMPANY, TENNANT COMPANY SUBSIDIARIES, AND MAJOR PARTS AND SERVICE LOCATIONS DIRECTORY ..14-5 275 SERIES II MM190 (NIL) Home Find... Go To..

  • Page 17: Specifications

    GENERAL MACHINE PERFORMANCE ..MACHINE DIMENSIONS ....275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 18: Specifications

    SPECIFICATIONS 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 19 3.5 in (90 mm) bore x Power source --- manual 8 in (205 mm) stroke, 1.25 in (32 mm) diameter rod, 2500 psi (17,240 kPa) maximum rated pressure 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 20 --- 161 in (4090 mm) Minimum isle turn width, left, multi---level dump model --- 111 in (2820 mm) Maximum rated climb/descent angle --- 10_ with full hopper, 15_ with an empty hopper 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 21: Machine Dimensions

    96 in (2440 mm) Low Dump Model 98 in (2490 mm) Multi-Level Dump Model 56 in (1420 mm) Low Dump Model 59 in (1500 mm) Multi-Level Dump Model 52 in (1320 mm) 02452 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 22 SPECIFICATIONS 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 23: Operation

    ..... . 2-38 STORING MACHINE ....2-38 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 24: Operation

    OPERATION 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 25: Preparation For Operation

    WARNING: Machine can have static electricity charge. When pouring fuel, spark can ignite fuel causing fire or explosion. Connect wire attached to fuel can to machine to discharge spark before pouring fuel. 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 26: Operation Of Controls

    Main Brush Access Door C. Steering Wheel J. Operator Seat D. Engine Cover K. Scrub Attachment E. Hopper Cover L. Front Access Door F. Hopper Door M. Solution Tank Covers G. Side Brush 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 27: Instrument Panel Symbols

    Main Brush On Engine Start Filter Shaker Hopper Roll Out Filter Clogged Hopper Roll In/Out Hold Key Switch Hopper Roll In Side Brush Down Side Brush On Side Brush Up Hopper Up 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 28 OPERATION INSTRUMENT PANEL SYMBOLS (cont.) Circuit Breaker 1 Circuit Breaker 2 Circuit Breaker 3 Circuit Breaker 4 Circuit Breaker 5 Circuit Breaker 6 Circuit Breaker 7 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 29: Controls And Instruments

    M. Diesel Preheat Pushbutton BB.Scrub Brush Position Lever N. Hopper Dump Lever CC.Solution Flow Knob O. Hopper Lift and Side Brush Lever DD.Throttle Switch P . Main Brush Position Lever 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 30: Brake Pedal

    To stop the engine on a diesel powered machine, The operator seat also tilts forward to allow access to pull the lever all the way to the right into the the fuel tank. (Diesel Off) position. 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 31: Throttle Switch

    (Hopper Down) position. To use engine preheaters, push and hold the preheat pushbutton until the indicator glows brightly --- usually fifteen to thirty seconds. Then release pushbutton and start engine. 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 32: Main Brush Position Lever

    This information is useful in determining when to service the machine. 00563 MAIN BRUSH HEIGHT ADJUSTMENT KNOB A. Wing Nut B. Adjustment Knob STEERING WHEEL 2-10 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 33: Engine Coolant Temperature Gauge

    10 seconds at a time or after the engine has started. hopper lift arm cam on multi-level dump Allow the starter to cool between starting attempts. models. The starter may be damaged if it is operated incorrectly. 2-11 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 34: To Disengage Hopper Support Bar

    4. Lower the hopper. 5. Turn the engine off. 5. Turn the engine off. 6. Check the support bar to make sure it is securely engaged. 2-12 275 SERIES II MM190 (NIL) Home Find... Go To..

  • Page 35: Scrub Brush Position Lever

    To increase solution flow, pull the knob out. To decrease solution flow, push the knob in. Pushing the knob all of the way in will stop solution flow. CIRCUIT BREAKERS 2-13 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 36: Machine Operation

    The starter motor may be damaged if it is operated Check for LPG odor indicating a fuel leak. incorrectly. Check brakes and controls for proper operation. Check service records to determine service requirements. 2-14 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 37: To Sweep

    Avoid turning the steering wheel too sharply when the machine is in motion. The machine is very responsive to the movement of the steering wheel. Avoid sudden turns, except in emergencies. 2-15 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 38: To Stop Machine

    Check for LPG odor indicating a fuel leak. hopper to its operating position. Check under machine for leak spots. 7. Slowly back the machine away from the dump site or dumpster. 2-16 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 39: Normal Scrubbing Operation

    7. Disengage the machine parking brake. Check service records to determine service requirements. 8. Place the throttle control in the (Fast 1) position and drive the machine to the solution filling site. 2-17 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 40: To Scrub

    FOR SAFETY: Before leaving or servicing the machine; stop on level surface, set parking brake, and turn off machine. 2. Open the solution tank covers. 2-18 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 41: Post Operation Checklist

    Check to make sure LPG tank service valve is closed. Check scrub brush pattern for width and evenness. Check for LPG odor indicating a fuel leak. Check squeegees for proper deflection. Check under machine for leak spots. 2-19 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 42: Double Scrubbing Operation

    5. Low dump models: Unlatch the vacuum door D. Spring retainer. Press the vacuum door arms down to close the vacuum door. 6. Low dump models: Remove the vacuum plug from the side of the hopper. 2-20 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 43: Hopper Dolly

    Multi-level dump models: Pull the vacuum door open. The spring will keep the door open. 17. Close the hopper inspection door. 2-21 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 44: To Install Hopper With Dolly

    11. Push the lift arms down to clear the lift arm pins 10. Reposition and latch the hopper cover on the and roll the hopper away from the machine. hopper. 2-22 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 45: Scrub Attachment

    “top” position. side cam bolt has left hand threads. 02753 TOP LIFT ARM CAM A. Top Cam 02756 LOCKING BRACKET B. Lift Arm C. Bracket A. Locking Bracket 2-23 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 46 15. Connect the large diameter hose from the and the machine. scrub attachment to the quick-disconnect station port the previous hose was connected 2-24 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 47 The hole should be free of debris or obstructions. 02757 SECURING SQUEEGEE RETAINING PINS A. Bracket B. Retaining Pin C. Pin Keeper D. Squeegee Assembly 2-25 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 48: To Remove Scrub Attachment

    4. Pull the retaining pin keeper out and remove the two squeegee assembly retaining pins. 9. Disconnect the wire harness connectors and Release the pin keeper. vacuum hoses between the scrub attachment and the machine. 2-26 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 49: Snow Blade

    80 + 5 psi (550 + 35 kPa) for sweeping. LIFT ARM HOOK A. Pin B. Hook C. Mounting Frame D. Limiting Chain 4. Position the upper ends of the mounting frame over the cams. 2-27 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 50: To Operate Snow Blade

    Push the snow forward by raising the plow as you 02761 SNOW BLADE INSTALLATION move into the pile. A. Snow Blade B. Runner Spindle C. Quadrant Assembly D. King Pin E. Sector Pin F. Mounting Frame 2-28 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 51: To Remove Snow Blade

    7. Push the lift arms down to clear the lift arm pins. 8. Start the engine, release the parking brake, and back the machine away from the snow blade assembly. 2-29 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 52: Snow Broom

    02759 LIFT ARM HOOK A. Pin B. Hook C. Mounting Frame D. Limiting Chain 4. Position the upper ends of the mounting frame over the cams. 2-30 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 53 D. Clevis Pin E. Snow Broom Frame F. Hex Set Screw G. Mounting Frame H. Limiting Chain 10. Disconnect the hydraulic hose from the front of the quick-disconnect station. 2-31 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 54: To Operate Snow Broom

    Do not let the snow broom stall for more than 30 seconds. Stalling causes overheating in the hydraulic system. This can seriously damage the hydraulic system. 2-32 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 55 02755 RECONNECTED HOSE 10. Start the engine, release the parking brake, and back the machine away from the snow A. Operator-- Side Port broom assembly. B. Hydraulic Hose 2-33 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 56: Sweeping

    Adjust hopper floor clearance Hopper full Empty hopper Hopper floor skirts worn, damaged Replace skirts NOTE: For more specific electro-hydraulic system troubleshooting information, see HYDRAULIC SYSTEM TROUBLESHOOTING in the MAINTENANCE section. 2-34 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 57: Scrubbing

    TROUBLESHOOTING: Main brush turns slowly or not at all Debris hopper full Empty hopper NOTE: For more specific electro-hydraulic system troubleshooting information, see HYDRAULIC SYSTEM TROUBLESHOOTING in the MAINTENANCE section. 2-35 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 58: Transporting Machine

    10. Remove the jack stands from under the Jack machine up at designated locations machine. only. Block machine up with jack stands. 11. Lower the machine. 12. Remove the blocks from the tires. 2-36 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 59: Machine Tie-Downs

    When transporting the machine on a trailer or in a truck, be sure to engage the machine parking brake and block the machine tires to prevent the machine from rolling. 2-37 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 60: Machine Storage

    5. Drain the gasoline from the carburetor bowl by removing the carburetor 2. Close the engine cooling system drain anti-diesel solenoid. cocks. 6. Replace the carburetor drain plug. 2-38 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 61: Maintenance

    ..... . . 3-23 CARBURETOR ..... . 3-23 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 62 ....3-56 HOPPER VACUUM FAN SEAL ... 3-56 275 SERIES II MM190 (6--- 90) Home Find... Go To..
  • Page 63 006500: Torque the cylinder head bolts to the proper specification. 4. Torque the rear wheel nuts. 5. Perform all 50-hour interval lubrication and maintenance procedures listed in the Maintenance Chart. 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 64 100 Hours Hopper dust filter Inspect, clean or replace Radiator Check coolant level Hydraulic fluid reservoir Check fluid level HYDO Rear tire Check pressure Dust seals Check for damage or wear 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 65: Front Wheel Bearings

    Hydraulic reservoir Replace suction strainer EO --- Engine oil HYDO --- Tennant Company or approved hydraulic fluid MPG --- Multi-purpose, calcium soap base grease MPGM --- Multi-purpose, water resistant, lithium base, moly-disulphide EP grease MPGP --- Multi-purpose grease, paraffin base with organic thickener.
  • Page 66 Check the steering grease level after every 400 hours of operation. Fill the unit with a calcium base soap grease. 02457 FRONT WHEEL A. Wheel 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 67 00550 HOPPER DOOR LATCH 02478 A. Hopper Door Latch LEFT SIDE HOPPER LIFT BEARING B. Grease Fitting A. Left Side Access Door B. Grease Fitting C. Lift Bearing 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 68: Scrub Attachment Leg Casters

    EP grease, or a paraffin base grease with organic thickener. with organic thickener. 02754 02764 LEG CASTER DEBRIS HOPPER A. Leg A. Hopper B. Grease Fitting B. Scrub Attachment Frame C. Grease Fitting 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 69: Hydraulics

    The quality and condition of the hydraulic fluid play a very important role in how well the machine operates. Tennant HYDRAULIC FLUID RESERVOIR Company has developed its own hydraulic fluid to Hydraulic fluid is stored in the hydraulic fluid meet the special needs of its machines.

  • Page 70: To Drain Hydraulic Fluid Reservoir And Replace Filter Element

    6. Operate the machine and check for leaks. Correct any leaks found. 7. Check the hydraulic fluid reservoir level and fill as required. 3-10 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 71: To Fill Hydraulic Fluid Reservoir

    TO ADJUST DIRECTIONAL PEDAL, whenever the machine creeps or after replacing the hydraulic propelling pump or pump linkages. The pedal linkages should also be adjusted whenever the reverse speed seems excessive or inadequate. 3-11 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 72: To Adjust Directional Pedal

    10. Tighten the linkage ball joints and jam nuts. D. Jam Nut 11. Raise the rear of the machine, remove the jack 5. Start the engine. stands, and lower the machine. 3-12 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 73: Lift Arm Speed Limiter

    A. Speed Limiter Bearing infection or death can result. Do not use body to B. Retaining Nut locate leak. Use cardboard to locate leak. C. Pump Linkage D. Lift Arm Cam 3-13 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 74: Hydraulic Schematic, Low Dump Model

    MAINTENANCE 04644 HYDRAULIC SCHEMATIC, LOW DUMP MODEL 3-14 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 75: Hydraulic Schematic, Multi-Level Dump Model

    MAINTENANCE 04645 HYDRAULIC SCHEMATIC, MULTI-LEVEL DUMP MODEL 3-15 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 76: Hydraulic System Troubleshooting

    Hydraulic motor failure See HYDRAULIC COMPONENTS TROUBLESHOOTING: Hydraulic motor failure Relief valve in Clean or replace relief valve sticking valve See HYDRAULIC COMPONENTS Gear pump failure TROUBLESHOOTING: Hydraulic gear pump 3-16 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 77 Dump cylinder failure See HYDRAULIC COMPONENTS TROUBLESHOOTING: Hydraulic cylinder failure Gear pump failure See HYDRAULIC COMPONENTS TROUBLESHOOTING: Hydraulic gear pump Lift arms binding Replace and/or adjust lift arm linkage 3-17 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 78: Hydraulic Components Troubleshooting

    Clean or replace relief valve Integral charge pump failure Replace charge pump Rotating group worn Replace rotating group Shaft failure Replace shaft Backplate worn Replace backplate Engine-to-pump coupling Replace coupling failure 3-18 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 79: Engine

    Check the radiator coolant level after every 100 hours of operation. 02468 RADIATOR ACCESS A. Radiator B. Hydraulic Fluid Cooler 3-19 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 80: Air Intake System

    Removing the air filter element more often than is needed allows contaminants to enter the engine unnecessarily. Clean or replace the air filter element only when the restriction indicator indicates excessive restriction in the system. 3-20 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 81: Air Filter

    D. Safety Air Filter Element (Accessory) E. Dust Cap F. Wing Nut 8. Clean the interior of the air cleaner housing with a damp cloth. Clean the element housing sealing surfaces. 3-21 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 82 Remember, the element must be replaced after it has been cleaned three times. 02492 DUST CAP A. Dust Cap 13. Reset the air filter restriction indicator. 14. Close the access doors. 3-22 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 83: Fuel System

    From the vaporizer-regulator, the LPG fuel is sent to the carburetor where it is finally metered into the air flow which is sent to the engine combustion chamber. 3-23 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 84: Fuel Tanks

    Replace hoses found to be worn or damaged. An LPG fuel tank with any of the stated defects must be removed from service and be repaired or destroyed accordingly. 3-24 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 85 NOTE: If the pin cannot be engaged, make sure you have the correct LPG fuel tank and then adjust the pin locator in or out. 11. Fasten the tank hold-down clamp to lock the tank in position. 3-25 275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 86 The engine oil pressure switch requires no regular maintenance. Never bypass the oil pressure switch as this is a safety feature which prevents LPG fuel from flowing when the engine is not operating properly. 3-26 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 87: Lpg Fuel Troubleshooting

    Kinked or restricted fuel line Straighten or replace fuel line Engine out of tune Tune-up engine Restricted air filter Clean or replace air filter element Vaporizer---regulator maladjusted Adjust vaporizer-regulator 3-27 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 88: Diesel Fuel System

    9. Bleed the fuel lines of air as described in TO 2. Open the side and top engine access doors. PRIME FUEL SYSTEM. 10. Close the side and top engine access doors. 3-28 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 89: Priming Fuel System

    6. Close the air vent. TO ADJUST GOVERNOR (For machines below serial number 006500) 7. Close the access doors. 1. Operate the engine until it reaches normal operating temperature. 3-29 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 90: Ignition System

    3. Tighten the spark plugs to 22 to 28 ft lb turn controls the throttle. (30 to 38 Nm) with a socket wrench of the correct size. The electronic governor is factory set and is not user serviceable. 3-30 275 SERIES II MM190 (NIL) Home Find... Go To..

  • Page 91: Distributor

    Stop the engine. FOR SAFETY: Before leaving or servicing machine; stop on level surface, set parking brake, and turn off machine. 3-31 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 92: Engine Ignition Timing

    0.013 in (0.32 mm) while the engine is cold. Tighten the intake manifold bolts to 15 to 18 ft lb (20 to 24 Nm) after every 800 hours of operation. 3-32 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 93: Cylinder Head

    (0.18 to 0.22 mm) in the firing order 1---2---3. CRANKCASE VENTILATION SYSTEM Clean the crankcase ventilation hoses, tubes, and fittings and replace the PCV valve after every 400 hours of operation. 3-33 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 94: Electrical System

    (4 points) for each 10_ F (6_ C) below 80_ F clear petroleum jelly to the terminals and the cable (27_ C). connectors. Keep the top of the battery clean and dry. 3-34 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 95: Electrical Schematic

    MAINTENANCE 04642 ELECTRICAL SCHEMATIC -- GASOLINE, LPG (For machines below serial number 006500) 3-35 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 96: Electrical Schematic

    MAINTENANCE 04642 ELECTRICAL SCHEMATIC -- GASOLINE, LPG (For machines serial number 006500 and above) 3-36 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 97: Electrical Schematic

    MAINTENANCE 04643 ELECTRICAL SCHEMATIC -- DIESEL 3-37 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 98: Accessories

    MAINTENANCE 04642 ELECTRICAL SCHEMATIC -- ACCESSORIES 3-38 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 99: Auto Shaker, Rfs

    MAINTENANCE 06187 ELECTRICAL SCHEMATIC -- AUTO SHAKER, RFS 3-39 275 SERIES II MM190 (6--- 90) Home Find... Go To..
  • Page 100 MAINTENANCE 06187 ELECTRICAL SCHEMATIC -- AUTO SHAKER, RFS 3-40 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 101: Belts And Chains

    8 to 10 lb (4 to 5 kg) applied at belt midpoint of the longest span. 04626 GOVERNOR BELT A. Governor B. Belt C. Idler D. Idler Bolts 3-41 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 102: Debris Hopper

    C. Frame Nut D. Shaker Frame 5. Lift the dust filter element out of the dust filter frame. 6. Clean or discard the dust filter as required. 3-42 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 103: To Install Hopper Dust Filter

    C. Check and adjust the cams on the lift arms so the hopper brackets rest on the cams. 02479 HOPPER CAM A. Cam B. Hopper Bracket 3-43 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 104: To Adjust Multi-Level Dump Model Hopper

    The cams must C. Tighten the clevis jam nut against the rest on the sloping edge of the lintel. clevis. 3-44 275 SERIES II MM190 (6--- 90) Home Find... Go To..
  • Page 105 G. Secure the clevis pins in place with their 02451 HEXAGON HOPPER CAM retaining rings. A. Hexagon Hopper Cam B. Hopper Lift Arm E. Tighten the hexagon hopper cam bolts. 3-45 275 SERIES II MM190 (6--- 90) Home Find... Go To..
  • Page 106 F. Start the engine. G. Dump the hopper and observe the unlatching of the hopper door. The latches should release at the same time. Adjust the latch chain eyebolts if necessary. 3-46 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 107: Thermo Sentryt

    E. Tighten the jam nut against the clevis. F. Raise the hopper, disengage the hopper bar and lower the hopper. G. Check the position of the stabilizer leg. Readjust as required. 3-47 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 108: Brushes

    Brush Down) position. 7. Place the new or rotated end-for-end main 3. Open the right side main brush door. brush on the floor next to the access door. 3-48 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 109: Main Brush Pattern

    13. Check and adjust the main brush pattern as described in TO CHECK AND ADJUST MAIN BRUSH PATTERN. 00582 NORMAL MAIN BRUSH PATTERN A. Main Brush Pattern B. Pattern Width 3-49 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 110: Side Brush

    02485 LOW DUMP MODEL SIDE BRUSH A. Nut B. Side Brush Arm C. Side Brush 00563 MAIN BRUSH HEIGHT ADJUSTMENT KNOB A. Height Adjustment Knob B. Wing Nut 3-50 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 111: To Replace Side Brush

    FOR SAFETY: Before leaving or servicing machine; stop on level surface, set parking brake, 10. Adjust the side brush pattern. and turn off machine. 11. Disengage the hopper support bar and lower the hopper. 3-51 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 112: Skirts And Seals

    8. Tighten the mounting bolts. 9. Start the engine. 10. Raise the hopper, lower the hopper support bar, and lower the hopper. 11. Stop the engine. 3-52 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 113: Brush Door Skirts

    3. Open the main brush doors. 4. Remove the brush door skirt retaining bolts. 00570 BRUSH DOOR SKIRT A. Brush Door Skirt B. Skirt Retaining Strip C. Brush Door 3-53 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 114: Rear Skirts

    12. Tighten the rear floor skirt mounting bolts. REPLACE MAIN BRUSH. 13. Reinstall the main brush. 00606 REAR SKIRTS A. Brush Idler Arm Hub B. Skirt Mounting Bracket C. Rear Floor Skirt D. Brush Contact Skirt 3-54 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 115: Main Brush Door Seals

    It seals the front of the debris compartment. The seal should be checked for wear or damage after every 100 hours of operation. 02480 HOPPER INSPECTION DOOR SEAL A. Hopper Inspection Door B. Door Seal 3-55 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 116: Hopper Door Seals

    To adjust seal contact, loosen the vacuum fan intake bracket mounting bolts. Pivot the bracket into the correct position and retighten the bolts. 02482 HOPPER COVER SEAL A. Hopper Cover B. Cover Seal 3-56 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 117: Brakes And Tires

    5 psi (480 + 35 kPa). 02457 BRAKE CLEVIS A solid rear tire is available as an accessory. A. Brake Adjusting Clevis B. Threaded Rod C. Brake Cross Shaft 3-57 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 118: Scrub Attachment

    They should be 2 to 3 in (50 to 75 mm) wide. The scrub brush pattern is adjusted by changing the position of the clevis on the threaded stud of the lift linkage. See TO CHECK AND ADJUST SCRUB BRUSH PATTERN. 3-58 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 119: To Replace Scrub Brush

    Brush Up) position, move the scrub attachment over the test area. Set the parking brake. 3. Place the main brush, vacuum fan and filter shaker switch in the bottom (Main Brush On) position. 3-59 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 120: Scrub Brush Pattern

    02771 CROSS SHAFT SHIM A. Shim B. Bearing Block C. Cross Shaft 02747 LIFT LINKAGE A. Clevis B. Stud 3-60 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 121: Recovery Tank

    4. Spray the inside of the tank with clean water. Remove all sludge and debris from the bottom of the tank. 02748 DRAIN HOSE A. Retention Plug B. Drain Hose C. Front Access Door 3-61 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 122: Debris Hopper

    The debris will empty as the unit is lifted and tilted back. 02764 DEBRIS HOPPER LIMIT BOLTS A. Lower Limit Bolt B. Upper Limit Bolt C. Debris Hopper 3-62 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 123: Side Squeegee

    3. Pull the pin keeper out and remove the two squeegee assembly retaining pins. Release the 12. Connect the squeegee assembly chain to the pin keeper. chain hook. 4. Slide the squeegee assembly out of the machine. 3-63 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 124: Rear Squeegee

    10. Adjust the rear squeegee as described in TO CHECK AND ADJUST REAR SQUEEGEE. 02773 REMOVING RETAINING PINS A. Retaining Pin B. End Bracket C. Squeegee Blade D. Band 3-64 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 125: To Replace Or Rotate Front Blade

    9. Place the squeegee blade over the pins on the C. Squeegee Assembly squeegee frame. 5. Remove the retaining pins from each end of the squeegee. Remove the end brackets. 3-65 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 126: To Check And Adjust Rear Squeegee

    7. Stop the engine and set the machine parking brake. FOR SAFETY: Before leaving or servicing machine; stop on level surface, set parking brake, and turn off machine. 3-66 275 SERIES II MM190 (6--- 90) Home Find... Go To..
  • Page 127 9. Adjust the squeegee deflection with the two squeegee adjustment studs. To increase deflection, increase down pressure by adjusting the stud forward. 04634 SQUEEGEE STUD A. Squeegee B. Stud C. Jam Nut 3-67 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 128: Snow Broom

    2. Remove the bolt holding the idler arm to the cross shaft. 02763 IDLER ARM A. Cross Shaft B. Bolt C. Idler Arm 3-68 275 SERIES II MM190 (6--- 90) Home Find... Go To..

  • Page 129: Appendix

    ....HYDRAULIC O---RING FITTING TORQUE CHART ....275 SERIES II MM190 (12--- 89) Home Find... Go To..
  • Page 130 APPENDIX 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 131: Hardware Information

    133 (180) 144 (195) 196 (265) Locktite 271 red --- high strength thread locking 260 (352) 336 (455) compound. TENNANTr Part No. 19857, 0.5 ml 470 (637) 664 (900) tube. 275 SERIES II MM190 (12--- 89) Home Find... Go To..

  • Page 132: Hydraulic Fitting Information

    0.75--- 16 30 ft lb (41 Nm) 0.62 0.88--- 14 40 ft lb (54 Nm) 0.75 1.12--- 12 70 ft lb (95 Nm) 1.31--- 12 90 ft lb (122 Nm) 275 SERIES II MM190 (12--- 89) Home Find... Go To..

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