Tennant 285 Operator's Manual
  1. Manuals
  2. Brands
  3. Tennant Manuals
  4. Blower
  5. 285
  6. Operator's manual

Tennant 285 Operator's Manual

Sweeper/scrubber machine
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
r
285
(Operator Manual)
Sweeper/
Scrubber
Home
Find... Go To..

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 285 and is the answer not in the manual?

Questions and answers

Related Manuals for Tennant 285

Summary of Contents for Tennant 285

  • Page 1 (Operator Manual) Sweeper/ Scrubber Home Find... Go To..

  • Page 2: Low Dump Model Parts

    D The machine is maintained with Tennant Company supplied or equivalent parts. Parts and supplies may be ordered by phone or mail from any Tennant Company parts and service center, distributor, or from any of the Tennant Company subsidiaries. Before ordering parts or supplies, be sure to have your machine model number and serial number handy.

  • Page 3: Ordering Repair Parts

    This section will list the controls and instruments on numerous sections filled with TENNANT part the machine, overview the machine operation, and numbers for the repair of the machine. Please read tell you how to transport and store the machine.

  • Page 4: About This Manual

    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. 285 MM191 (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 285 MM191 (12--- 89) Home Find... Go To..

  • Page 7: General Information

    FOR SAFETY: To identify actions which must be jackets, shirts, or sleeves when working followed for safe operation. on machine. -- Use Tennant Company supplied or The following information signals potentially equivalent replacement parts. dangerous conditions to the operator or equipment.
  • 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. 285 MM191 (12--- 89) Home Find... Go To..
  • Page 9 FAN SHROUD. UNDERSIDE OF BUMPER, LOW DUMP MODEL ONLY. 04621 NOISE LABEL -- LOCATED ON FRONT RIGHT OF HEAVY BUMPER LABEL -- LOCATED ON OPERATOR COMPARTMENT. UNDERSIDE OF BUMPER, LOW DUMP MODEL ONLY. 285 MM191 (12--- 89) Home Find... Go To..
  • Page 10 FOR SAFETY LABEL -- LOCATED ON LEFT SIDE OF OPERATOR COMPARTMENT. SHOCK LABEL -- LOCATED ON FRONT RIGHT HOPPER SUPPORT BAR LABEL -- LOCATED ON OF OPERATOR COMPARTMENT. HOPPER SUPPORT BAR. CONTENTS 285 MM191 (12--- 89) Home Find... Go To..

  • Page 11: Table Of Contents

    ..2-31 INDICATOR ..... . 2-11 285 MM191 (12--- 89) Home Find... Go To..

  • Page 12: General Information

    ....3-32 HYDRAULIC COMPONENTS VALVE TAPPET CLEARANCE ..3-32 TROUBLESHOOTING ... . . 3-18 285 MM191 (12--- 89) Home Find... Go To..
  • Page 13 ....3-55 TO REPLACE AND ADJUST BRUSH DOOR SKIRTS ..3-55 285 MM191 (6--- 90) Home Find... Go To..
  • Page 14 ... 6-10 Fig. 18 --- Recovery Tank Group ..8-26 Fig. 6 --- Directional Control Group, Diesel 6-11 viii 285 MM191 (NIL) Home Find... Go To..
  • Page 15 ..... 9-15 Fig. 13 --- Fuel Camshaft Group ..12-22 285 MM191 (6--- 90) Home Find... Go To..
  • Page 16 13-3 CUSTOMER DOCUMENTS ....14-1 TENNANT COMPANY LIMITED WARRANTY 14-3 TENNANT COMPANY, TENNANT COMPANY SUBSIDIARIES, AND MAJOR PARTS AND SERVICE LOCATIONS DIRECTORY ..

  • Page 17: Specifications

    ..... GENERAL MACHINE PERFORMANCE ..MACHINE DIMENSIONS ....285 MM191 (12--- 89) Home Find... Go To..

  • Page 18: Specifications

    SPECIFICATIONS 285 MM191 (12--- 89) Home Find... Go To..

  • Page 19: Machine Specifications

    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 285 MM191 (12--- 89) Home Find... Go To..

  • Page 20: Braking System

    --- 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 285 MM191 (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 285 MM191 (12--- 89) Home Find... Go To..
  • Page 22 SPECIFICATIONS 285 MM191 (12--- 89) Home Find... Go To..

  • Page 23: Operation

    ..... . 2-39 STORING MACHINE ....2-39 285 MM191 (12--- 89) Home Find... Go To..
  • Page 24 OPERATION 285 MM191 (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. 285 MM191 (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 285 MM191 (12--- 89) Home Find... Go To..

  • Page 27: Instrument Panel Symbols

    Engine Water Temperature Hopper Roll Out Hydraulic Fluid Temperature Hopper Roll In/Out Hold Battery/Alternator/Charging System Hopper Roll In Hopper Temperature --- Thermo Sentryt Side Brush On Engine Shutdown Hopper Up Fuel Level Hopper Down 285 MM191 (12--- 89) Home Find... Go To..
  • Page 28 Circuit Breaker 2 Filter Clogged Circuit Breaker 3 Main Brush On Circuit Breaker 4 Hourmeter Circuit Breaker 5 Engine Start Circuit Breaker 6 Key Switch Circuit Breaker 7 Side Brush Down Side Brush Up 285 MM191 (12--- 89) Home Find... Go To..

  • Page 29: Controls And Instruments

    H. Hazard Light Switch T. Hopper Support Bar Engine Choke Knob U. Scrub Brush Position Lever J. Drive Lights Switch V. Solution Flow Knob K. Diesel Preheat Indicator W. Throttle Switch L. Diesel Preheat Pushbutton 285 MM191 (12--- 89) Home Find... Go To..

  • Page 30: Brake Pedal

    The operator seat also tilts forward to allow access to the fuel tank. 285 MM191 (12--- 89) Home Find... Go To..

  • Page 31: Throttle Lever

    (Hopper Roll In) position, then release the lever into the (Hopper In/Out Hold) position. Lower the hopper with the hopper lift and side brush lever. 285 MM191 (12--- 89) Home Find... Go To..

  • Page 32: Hopper Lift And Side Brush Lever

    To lower the main brush for sweeping extremely 00563 uneven surfaces, pull the lever back and to the right MAIN BRUSH HEIGHT ADJUSTMENT KNOB into the (Main Brush Free Float) position. A. Wing Nut B. Adjustment Knob 2-10 285 MM191 (12--- 89) Home Find... Go To..

  • Page 33: Instrument Panel

    Engine over-heating will always cause a coolant loss. If coolant loss does not occur, check for malfunction of the temperature sending unit. 2-11 285 MM191 (12--- 89) Home Find... Go To..

  • Page 34: Clogged Filter Indicator

    To start main brush rotation and vacuum fan suction, WARNING: Falling hopper. Engage hopper press the switch. support bar before working under hopper. To stop main brush rotation and vacuum fan suction, press the switch again. 2-12 285 MM191 (12--- 89) Home Find... Go To..

  • Page 35: To Engage Hopper Support Bar

    MULTI-LEVEL DUMP MODEL 02467 ENGAGED HOPPER SUPPORT BAR -- MUL- TI-LEVEL DUMP MODEL A. Support Bar A. Lift Arm Cam 4. Lower the hopper. B. Support Bar 5. Turn the engine off. 2-13 285 MM191 (12--- 89) Home Find... Go To..

  • Page 36: Scrub Brush Position Lever

    To increase solution flow, pull the knob out. To 04630 SQUEEGEE LIFT CIRCUIT BREAKER decrease solution flow, push the knob in. Pushing the knob all of the way in will stop solution flow. A. Circuit Breaker 2-14 285 MM191 (12--- 89) Home Find... Go To..

  • Page 37: 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. 2-15 285 MM191 (12--- 89) Home Find... Go To..

  • Page 38: 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. 2-16 285 MM191 (12--- 89) Home Find... Go To..

  • Page 39: To Dump Hopper

    7. Push the hopper lift and side brush lever into the (Hopper Down) position to return the Check under machine for leak spots. hopper to its operating position. 8. Slowly back the machine away from the dump site or dumpster. 2-17 285 MM191 (12--- 89) Home Find... Go To..

  • Page 40: Post Operation Checklist

    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. 2-18 285 MM191 (12--- 89) Home Find... Go To..

  • Page 41: To Scrub

    For specific 7. Move the main brush position lever into the recommendations, consult the local Tennant (Main Brush Down) position, and the scrub Company Representative. brush position lever into the normal position.

  • Page 42: To Drain Recovery Tank And Empty Debris Hopper

    NOTE: The tank will not empty with the vacuum fan POST OPERATION CHECKLIST --- ENGINE operating. OPERATING Check scrub brush pattern for width and evenness. Check squeegees for proper deflection. 2-20 285 MM191 (12--- 89) Home Find... Go To..

  • Page 43: To Stop Machine

    The maximum rate ramp climb and descent angle is 11. LPG powered machines: Close the LPG tank 15_ with an empty hopper, and 10_ with a full liquid service valve. hopper. 2-21 285 MM191 (12--- 89) Home Find... Go To..

  • Page 44: Vacuum Wand

    Push the vacuum door closed. Press the vacuum door arms 10. Press the main brush and vacuum fan switch to down to lock the door shut. start the vacuum fan. 2-22 285 MM191 (12--- 89) Home Find... Go To..

  • Page 45: Hopper Dolly

    (Hopper Hold) position. 11. Push the lift arms down to clear the lift arm pins 7. Stop the engine. and roll the hopper away from the machine. 2-23 285 MM191 (12--- 89) Home Find... Go To..

  • Page 46: To Install Hopper With Dolly

    9. Connect the wire harness connectors and the vacuum hose(s) between the hopper and the machine. 10. Reposition and latch the hopper cover on the hopper. 02756 LOCKING BRACKET A. Locking Bracket 2-24 285 MM191 (12--- 89) Home Find... Go To..
  • Page 47 TOP LIFT ARM CAM 13. Connect the wire harness connectors and A. Top Cam vacuum hoses between the scrub attachment B. Lift Arm and the machine. C. Bracket 2-25 285 MM191 (12--- 89) Home Find... Go To..
  • Page 48 15. Connect the large diameter hose from the scrub attachment to the quick-disconnect A. Bracket station port the previous hose was connected B. Retaining Pin C. Pin Keeper D. Squeegee Assembly 2-26 285 MM191 (12--- 89) Home Find... Go To..

  • Page 49: To Remove Scrub Attachment

    The hole F. Squeegee Assembly should be free of debris or obstructions. 4. Pull the retaining pin keeper out and remove the two squeegee assembly retaining pins. Release the pin keeper. 2-27 285 MM191 (12--- 89) Home Find... Go To..
  • Page 50 TO REPLACE MAIN BRUSH. A. Operator-Side Port B. Hydraulic Hose 19. Check the rear tire pressure. It should be 80 + 5 psi (550 + 35 kPa) for sweeping. 2-28 285 MM191 (12--- 89) Home Find... Go To..

  • Page 51: Snow Blade

    SNOW BLADE INSTALLATION 4. Position the upper ends of the mounting frame A. Snow Blade over the cams. B. Runner Spindle C. Quadrant Assembly D. King Pin E. Sector Pin F. Mounting Frame 2-29 285 MM191 (12--- 89) Home Find... Go To..

  • Page 52: To Operate Snow Blade

    To do this, place the blade in a straight-on position. Push the snow forward by raising the plow as you move into the pile. 2-30 285 MM191 (12--- 89) Home Find... Go To..

  • Page 53: To Remove Snow Blade

    7. Push the lift arms down to clear the lift arm A. Pin pins. B. Hook 8. Start the engine, release the parking brake, C. Mounting Frame and back the machine away from the snow D. Limiting Chain blade assembly. 2-31 285 MM191 (12--- 89) Home Find... Go To..
  • Page 54 10. Disconnect the hydraulic hose from the front of right or left side of the mounting frame with a the quick-disconnect station. clevis pin depending upon which direction the snow should be swept. 2-32 285 MM191 (12--- 89) Home Find... Go To..

  • Page 55: To Operate Snow Broom

    Recheck and adjust as necessary. 30 seconds. Stalling causes overheating in the hydraulic system. This can seriously damage the hydraulic system. 02760 MOUNTING FRAME UPPER END A. Upper End Bolt B. Mounting Frame 2-33 285 MM191 (12--- 89) Home Find... Go To..

  • Page 56: To Remove Snow Broom Assembly

    9. Push the lift arms down to clear the lift arm RECONNECTED HOSE pins. A. Operator-Side Port 10. Start the engine, release the parking brake, B. Hydraulic Hose and back the machine away from the snow broom assembly. 2-34 285 MM191 (12--- 89) Home Find... Go To..

  • Page 57: 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. 2-35 285 MM191 (12--- 89) Home Find... Go To..

  • Page 58: Scrubbing

    See HYDRAULIC SYSTEM 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. 2-36 285 MM191 (12--- 89) Home Find... Go To..

  • Page 59: Transporting Machine

    4. Use a jack of adequate capacity to raise the machine. Jack up the machine only at the designated locations. WARNING: Machine is unstable on jack. Jack machine up at designated locations only. Block machine up with jack stands. 2-37 285 MM191 (12--- 89) Home Find... Go To..

  • Page 60: Machine Tie-Downs

    9. When finished servicing the machine, raise the machine off the jack stands. 10. Remove the jack stands from under the machine. 11. Lower the machine. 12. Remove the blocks from the tires. 2-38 285 MM191 (12--- 89) Home Find... Go To..

  • Page 61: Machine Storage

    5. Drain the gasoline from the carburetor 2. Close the engine cooling system drain bowl by removing the carburetor cocks. anti-diesel solenoid. 6. Replace the carburetor drain plug. 2-39 285 MM191 (12--- 89) Home Find... Go To..
  • Page 62 OPERATION 2-40 285 MM191 (NIL) Home Find... Go To..

  • Page 63: Maintenance

    TUNE-UP CHART --- GASOLINE, LPG ..3-33 CARBURETOR ..... . 3-23 285 MM191 (12--- 89) Home Find... Go To..
  • Page 64 ....3-55 TO REPLACE AND ADJUST BRUSH DOOR SKIRTS ... . 3-55 285 MM191 (6--- 90) Home Find... Go To..
  • Page 65 010750: 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. 285 MM191 (12--- 89) Home Find... Go To..
  • Page 66 Rotate end-for-end 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 285 MM191 (12--- 89) Home Find... Go To..

  • Page 67: 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 68 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 285 MM191 (12--- 89) Home Find... Go To..
  • Page 69 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 285 MM191 (12--- 89) Home Find... Go To..

  • Page 70: 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 285 MM191 (12--- 89) Home Find... Go To..

  • Page 71: 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 72: To Drain Hydraulic Fluid Reservoir And Replace Filter Element

    5. Thread and hand tighten the new hydraulic fluid filter element on the filter head. 6. Operate the machine and check for leaks. Correct any leaks found. 7. Check the hydraulic fluid reservoir level and fill as required. 3-10 285 MM191 (12--- 89) Home Find... Go To..

  • Page 73: 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. 3-11 285 MM191 (12--- 89) Home Find... Go To..

  • Page 74: 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. 3-12 285 MM191 (12--- 89) Home Find... Go To..

  • Page 75: 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 3-13 285 MM191 (12--- 89) Home Find... Go To..

  • Page 76: Hydraulic Schematic, Low Dump Model

    MAINTENANCE 04644 HYDRAULIC SCHEMATIC, LOW DUMP MODEL 3-14 285 MM191 (12--- 89) Home Find... Go To..

  • Page 77: Hydraulic Schematic, Multi-Level Dump Model

    MAINTENANCE 04645 HYDRAULIC SCHEMATIC, MULTI-LEVEL DUMP MODEL 3-15 285 MM191 (12--- 89) Home Find... Go To..

  • Page 78: Hydraulic System Troubleshooting

    Hydraulic motor failure See HYDRAULIC COMPONENTS TROUBLESHOOTING: Hydraulic motor failure Relief valve in Clean or replace relief valve sticking valve Gear pump failure See HYDRAULIC COMPONENTS TROUBLESHOOTING: Hydraulic gear pump 3-16 285 MM191 (12--- 89) Home Find... Go To..
  • Page 79 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 3-17 285 MM191 (12--- 89) Home Find... Go To..

  • Page 80: 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 3-18 285 MM191 (12--- 89) Home Find... Go To..

  • Page 81: Engine Lubrication

    The engine oil capacity is 7 qt (6.7 L) including the oil filter. WARNING: Air or water under pressure. Severe eye or ear injury can result. Wear eye and ear protection. 3-19 285 MM191 (12--- 89) Home Find... Go To..

  • Page 82: Air Intake System

    ATTENTION! Never pour cold water or cold antifreeze into the radiator of an overheated engine. Allow the engine to cool to avoid cracking the cylinder head or block. Keep the engine running while adding water. 3-20 285 MM191 (12--- 89) Home Find... Go To..

  • Page 83: Air Filter Restriction Indicator

    Do not remove the air filter element unless it is restricting air flow. 02172 AIR FILTER RESTRICTION INDICATOR A. Restriction Indicator B. Indicator Window C. Indicator Reset Button 3-21 285 MM191 (12--- 89) Home Find... Go To..

  • Page 84: To Replace Air Filter Element

    8. Clean the interior of the air cleaner housing with replaced after it has been cleaned three times. a damp cloth. Clean the element sealing surfaces. 9. Remove the safety element wing nut. 3-22 285 MM191 (12--- 89) Home Find... Go To..

  • Page 85: Fuel System

    Tighten the clamp ring to hold it in place. Check all intake hose connections for leaks or abrasion. 02492 DUST CAP A. Dust Cap 17. Reset the air filter restriction indicator. 18. Close the access doors. 3-23 285 MM191 (12--- 89) Home Find... Go To..

  • Page 86: Fuel System

    Check routings of all LPG hoses. Keep them away from sharp edges, exhaust manifolds, or other hot surfaces. Check for signs of abrasion or deterioration. Replace hoses found to be worn or damaged. 3-24 285 MM191 (12--- 89) Home Find... Go To..

  • Page 87: Fuel Tanks

    TYPICAL LPG LIQUID WITHDRAWAL FUEL TANK appropriate personnel for action. A. Filler Valve B. Safety Relief Valve C. Liquid Service Valve D. Service Valve Coupling E. Liquid Level Gauge 3-25 285 MM191 (12--- 89) Home Find... Go To..

  • Page 88: To Change An Lpg Fuel Tank

    12. Connect the LPG fuel line to the tank service coupling. Make sure the service coupling is clean and free of damage. Also make sure it matches the machine service coupling. 3-26 285 MM191 (12--- 89) Home Find... Go To..

  • Page 89: Lpg Fuel Troubleshooting

    Replace filter 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 3-27 285 MM191 (12--- 89) Home Find... Go To..

  • Page 90: Fuel System

    Air in the fuel system will prevent smooth engine operation. Prime the fuel system after running out of fuel, changing fuel filter elements or repairing a fuel system component. 3-28 285 MM191 (12--- 89) Home Find... Go To..

  • Page 91: To Prime Fuel System

    The regulation screw has been factory set and should not be tampered with. TO ADJUST GOVERNOR (For machines below serial number 010750) 1. Operate the engine until it reaches normal operating temperature. 3-29 285 MM191 (12--- 89) Home Find... Go To..

  • Page 92: Ignition System

    3. Tighten the spark plugs to 22 to 28 ft lb (30 to 38 Nm) with a socket wrench of the The electronic governor is factory set and is not user correct size. serviceable. 3-30 285 MM191 (12--- 89) Home Find... Go To..

  • Page 93: Engine Ignition Timing

    Note the engine speed when the advance brake. begins and the amount of total advance. Stop the engine. FOR SAFETY: Before leaving or servicing machine; stop on level surface, set parking brake, and turn off machine. 3-31 285 MM191 (12--- 89) Home Find... Go To..

  • Page 94: Engine Ignition Timing (For Machines Serial Number 010750 And Above)

    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. 3-32 285 MM191 (12--- 89) Home Find... Go To..

  • Page 95: Number 010750)

    (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. 3-33 285 MM191 (12--- 89) Home Find... Go To..

  • Page 96: 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. 3-34 285 MM191 (12--- 89) Home Find... Go To..

  • Page 97: Electrical Schematic

    MAINTENANCE 04647 ELECTRICAL SCHEMATIC -- GASOLINE, LPG (For machines below serial number 010750) 3-35 285 MM191 (12--- 89) Home Find... Go To..

  • Page 98: (For Machines Serial Number 010750 And Above)

    MAINTENANCE 05791 ELECTRICAL SCHEMATIC -- GASOLINE, LPG (For machines serial number 010750 and above) 3-36 285 MM191 (12--- 89) Home Find... Go To..

  • Page 99: (For Machines Serial Number 010750 And Above)

    MAINTENANCE 05791 ELECTRICAL SCHEMATIC -- GASOLINE, LPG (For machines serial number 010750 and above) 3-37 285 MM191 (12--- 89) Home Find... Go To..

  • Page 100: Electrical Schematic -- Diesel

    MAINTENANCE 04643 ELECTRICAL SCHEMATIC -- DIESEL (For machines below serial number 010750) 3-38 285 MM191 (6--- 90) Home Find... Go To..
  • Page 101 MAINTENANCE 06208 ELECTRICAL SCHEMATIC -- DIESEL (For machines serial number 010750 and above) 3-39 285 MM191 (6--- 90) Home Find... Go To..
  • Page 102 MAINTENANCE 06208 ELECTRICAL SCHEMATIC -- DIESEL (For machines serial number 010750 and above) 3-40 285 MM191 (6--- 90) Home Find... Go To..

  • Page 103: Electrical Schematic -- Auto Shaker, Rfs

    MAINTENANCE 06187 ELECTRICAL SCHEMATIC -- AUTO SHAKER, RFS 3-41 285 MM191 (6--- 90) Home Find... Go To..
  • Page 104 MAINTENANCE 06187 ELECTRICAL SCHEMATIC -- AUTO SHAKER, RFS 3-42 285 MM191 (6--- 90) Home Find... Go To..

  • Page 105: 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 3-43 285 MM191 (6--- 90) Home Find... Go To..

  • Page 106: 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. 3-44 285 MM191 (6--- 90) Home Find... Go To..

  • Page 107: 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 3-45 285 MM191 (6--- 90) Home Find... Go To..

  • Page 108: 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. 3-46 285 MM191 (6--- 90) Home Find... Go To..
  • Page 109 F. Tighten the clevis jam nuts. 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. 3-47 285 MM191 (6--- 90) Home Find... Go To..
  • Page 110 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. 3-48 285 MM191 (6--- 90) Home Find... Go To..

  • Page 111: Thermo Sentryt

    00598 STABILIZER LEG A. Clevis B. Jam Nut C. Threaded Rod D. Stabilizer Leg 02465 THERMO SENTRYt A. Vacuum Fan B. Thermo Sentryt C. Reset Button 3-49 285 MM191 (6--- 90) Home Find... Go To..

  • Page 112: 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. 3-50 285 MM191 (6--- 90) Home Find... Go To..

  • Page 113: To Check And Adjust Main Brush Pattern

    12. Close the right side main brush door. 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 3-51 285 MM191 (6--- 90) Home Find... Go To..

  • Page 114: 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 3-52 285 MM191 (6--- 90) Home Find... Go To..

  • Page 115: 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. 3-53 285 MM191 (6--- 90) Home Find... Go To..

  • Page 116: 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. 3-54 285 MM191 (6--- 90) Home Find... Go To..

  • Page 117: Brush Door Skirts

    10. Close the brush doors. 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 3-55 285 MM191 (6--- 90) Home Find... Go To..

  • Page 118: 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 3-56 285 MM191 (6--- 90) Home Find... Go To..

  • Page 119: 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 3-57 285 MM191 (6--- 90) Home Find... Go To..

  • Page 120: 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 3-58 285 MM191 (6--- 90) Home Find... Go To..

  • Page 121: Brakes And Tires

    70 + 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 3-59 285 MM191 (6--- 90) Home Find... Go To..

  • Page 122: 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. 3-60 285 MM191 (6--- 90) Home Find... Go To..

  • Page 123: To Replace Scrub Brush

    2. With the scrub brush position lever in the (Side Brush Up) position, move the scrub attachment over the test area. Set the parking brake. 3. Press the main brush and vacuum fan switch. 3-61 285 MM191 (6--- 90) Home Find... Go To..
  • Page 124 Thread the stud out of the clevis to increase the width. 02771 CROSS SHAFT SHIM A. Shim B. Bearing Block C. Cross Shaft 02747 LIFT LINKAGE A. Clevis B. Stud 3-62 285 MM191 (6--- 90) Home Find... Go To..

  • Page 125: 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 3-63 285 MM191 (6--- 90) Home Find... Go To..

  • Page 126: 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 3-64 285 MM191 (6--- 90) Home Find... Go To..

  • Page 127: 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. 3-65 285 MM191 (6--- 90) Home Find... Go To..

  • Page 128: 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 3-66 285 MM191 (6--- 90) Home Find... Go To..

  • Page 129: To Replace Or Rotate Front Blade

    B. Squeegee Frame Nut 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. 3-67 285 MM191 (6--- 90) Home Find... Go To..

  • Page 130: 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. 3-68 285 MM191 (6--- 90) Home Find... Go To..
  • Page 131 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 3-69 285 MM191 (6--- 90) Home Find... Go To..

  • Page 132: 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 3-70 285 MM191 (6--- 90) Home Find... Go To..

  • Page 133: Appendix

    ....HYDRAULIC O---RING FITTING TORQUE CHART ....285 MM191 (12--- 89) Home Find... Go To..
  • Page 134 APPENDIX 285 MM191 (12--- 89) Home Find... Go To..

  • Page 135: Hardware Information

    94 (127) 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. 285 MM191 (12--- 89) Home Find... Go To..

  • Page 136: Hydraulic Fitting Information

    20 ft lb (27 Nm) 0.50 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) 285 MM191 (12--- 89) Home Find... Go To..

Table of Contents