Tennant 242E Operator's Manual
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Tennant 242E Operator's Manual

Tennant 242E Operator's Manual

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Summary of Contents for Tennant 242E

  • Page 1 (Operator Manual) 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: General Information

    -- Use Cardboard To Locate Leaking 1. Do Not Operate Machine: Hydraulic Fluid Under Pressure. -- Unless Trained And Authorized. -- Use TENNANT Supplied Or Equivalent -- Unless Operation Manual Is Read And Replacement Parts. Understood. -- In Flammable Or Explosive Areas Unless WARNING: Batteries Emit Hydrogen Gas.
  • Page 4 HOPPER SUPPORT BAR LABEL -- LOCATED ON LIFT ARM CLEARANCE LABEL -- LOCATED ON THE HOPPER SUPPORT, BOTH HOPPER LIFT BOTH HOPPER LIFT ARMS, MULTI-LEVEL DUMP ARMS AND CENTER PANEL, MULTI-LEVEL DUMP MODEL ONLY MODEL ONLY 242E MM243 (5--- 92) Home Find... Go To..

  • Page 5: Table Of Contents

    SCRUB BRUSH POSITION LEVER ..SOLUTION FLOW KNOBS ... . CIRCUIT BREAKER AND FUSES ..242E MM243 (5--- 92) Home Find... Go To..
  • Page 6 ....3-21 ELECTRIC SCHEMATIC ....3-22 242E MM243 (5--- 92) Home Find... Go To..
  • Page 7 ....5-26 Fig. 1 --- Instrument and Component Panel Group, EE ....242E MM243 (5--- 92) Home Find... Go To..
  • Page 8 ....8-34 Fig. 33 --- Scrub Tank Frame Group, EE . . . 8-36 Fig. 34 --- Detergent Distribution Group, EE 8-38 Fig. 35 --- Maximum Path Side Brush Group 8-39 242E MM243 (5--- 92) Home Find... Go To..

  • Page 9: Specifications

    ....GENERAL MACHINE PERFORMANCE ..MACHINE DIMENSIONS ....242E MM243 (5--- 92) Home Find... Go To..
  • Page 10 SPECIFICATIONS 242E MM243 (9--- 89) Home Find... Go To..

  • Page 11: Machine Specifications

    Pump propelling (for machines serial number 005106 and above) --- variable displacement piston type, 2.48 cu in (41 cc) maximum displacement per revolution, 22.7 gpm (86 L/min) @ 2400 rpm 242E MM243 (5--- 92) Home Find... Go To..

  • Page 12: Braking System

    Sweeping path width --- 42 in (1070 mm) Sweeping path width with side brush --- 53 in (1345 Hopper capacity --- 14 ft# (0.4 m#) 1000 lb (455 kg) Dust filter area --- 110 ft@ (10.2 m@) 242E MM243 (5--- 92) Home Find... Go To..

  • Page 13: Machine Dimensions

    Multi-Level Dump Model 56.75 in (1440 mm) Low Dump Model 57.75 in (1470 mm) Multi-Level Dump Model TOP VIEW 81.4 in (2070 mm) 50.75 in (1290 mm) SIDE VIEW 05183 05539 MACHINE DIMENSIONS 242E MM243 (5--- 92) Home Find... Go To..
  • Page 14 SPECIFICATIONS 242E MM243 (9--- 89) Home Find... Go To..

  • Page 15: Operation

    ... . . 2-16 TO STOP MACHINE ....2-16 242E MM243 (5--- 92) Home Find... Go To..
  • Page 16 OPERATION 242E MM243 (5--- 92) Home Find... Go To..

  • Page 17: Preparation For Operation

    4. Check the hydraulic fluid level in the hydraulic fluid reservoir, using the dipstick provided. TENNANT hydraulic fluid is recommended. If TENNANT hydraulic fluid is not available, use only new, approved hydraulic fluid. See HYDRAULICS in the MAINTENANCE section. 5. Check to be sure the fusible link on the filter box fire door has not been broken during shipment.

  • Page 18: Operation Of Controls

    J. Solution Tank Cover D. Steering Wheel K. Side Scrub Brush E. Instrument Panel L. Side Squeegee F. Operator Seat M. Scrub Brush Position Lever G. Battery Cover N. Solution Flow Knobs 242E MM243 (5--- 92) Home Find... Go To..

  • Page 19: Controls And Instruments

    F. Filter Shaker Switch Main Brush Position Lever G. Vacuum Control Handle Q. Hopper Dump Lever H. Operating Lights Switch R. Steering Wheel Hour Meter S. Side Brush Position Lever J. Voltmeter 242E MM243 (5--- 92) Home Find... Go To..

  • Page 20: Brake Pedal

    To stop side brush rotation, pull the lever back into machine. the “OFF LOWER HOPPER” position. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, Set Parking Brake, Turn Off Machine And Remove Key. 242E MM243 (5--- 92) Home Find... Go To..

  • Page 21: Filter Shaker Switch

    SCRUB BRUSH SWITCH The scrub brush switch is present on a machine equipped with a scrub attachment. The scrub brush switch turns on and off the scrub brush. 242E MM243 (5--- 92) Home Find... Go To..

  • Page 22: Hopper Dump Lever

    HOPPER” position to allow work to be done under the hopper. Do not rely on the machine hydraulic system to keep the hopper raised. WARNING: Raised Hopper May Fall. Engage Hopper Support Bar. 242E MM243 (5--- 92) Home Find... Go To..

  • Page 23: Solution Flow Knobs

    Fuses are a one-time circuit protection device designed to stop the flow of current in the event of a circuit overload. Never substitute higher value fuses than those specified in this manual. 242E MM243 (5--- 92) Home Find... Go To..

  • Page 24: Machine Operation

    Check the brushes and brush skirts for damage, wear and adjustment. Check brakes and controls for proper operation. Check service records to determine service requirements. 04622 OVERLAPPING PATHS A. Overlapping Width 2-10 242E MM243 (5--- 92) Home Find... Go To..

  • Page 25: To Stop Machine

    “RAISED POSITION” and raise the side brush dumpster. with the side brush position lever. 3. Place the hopper lift and side brush lever in the “OFF LOWER HOPPER” position. 4. Turn the operating lamps off if used. 2-11 242E MM243 (5--- 92) Home Find... Go To..

  • Page 26: To Engage Hopper Support Bar

    6. Check the support bar to make sure it is hopper lift arm cam on multi-level dump securely engaged. models. 02488 ENGAGED HOPPER SUPPORT BAR -- LOW DUMP MODEL A. Lift Arm Pin B. Support Bar 2-12 242E MM243 (5--- 92) Home Find... Go To..

  • Page 27: To Disengage Hopper Support Bar

    Check the brushes and brush skirts for damage, A. Support Bar wear and adjustment. 4. Lower the hopper. Check brakes and controls for proper operation. 5. Turn the machine off. Check service records to determine service requirements. 2-13 242E MM243 (5--- 92) Home Find... Go To..

  • Page 28: To Scrub

    NOTE: Before starting machine, perform the pre-start important role in determining the type and checks. concentration of detergent to be used. For specific recommendations, consult the local Tennant 1. The machine operator must be in the Company Representative. operator’s seat with the directional pedal in the “neutral”...

  • Page 29: To Drain Recovery Tank And Empty Debris Hopper

    FOR SAFETY: Before Leaving Or Servicing “RESTRICTED DOWN” position. Machine; Stop On Level Surface, Set Parking Brake, Turn Off Machine And Remove Key. 10. Lower the scrub brush into the normal position. 2-15 242E MM243 (5--- 92) Home Find... Go To..

  • Page 30: Post Operation Checklist

    POST OPERATION CHECKLIST --- MOTOR lowered. OPERATING Check scrub brush pattern for width and evenness. FOR SAFETY: When Using Machine, Go Slow On Grades And Slippery Surfaces. Check squeegees for proper deflection. 2-16 242E MM243 (5--- 92) Home Find... Go To..

  • Page 31: Machine Troubleshooting -- Sweeping

    Hydraulic pump drive belts loose. Tighten belts. Hydraulic oil temperature too high --- Use TENNANT Hydraulic Fluid. Check oil too thin. May be caused by pump. See HYDRAULIC operating with excessive load or COMPONENT TROUBLESHOOTING.

  • Page 32: Sweeping

    Filters clogged. Clean filters. Main brush drive belts slipping. Check both brush drive belts for proper tension. Side brush hydraulic motor worn. Check motor. Brush driving plugs worn or Check plugs. damaged. 2-18 242E MM243 (5--- 92) Home Find... Go To..

  • Page 33: Machine Troubleshooting -- Scrubbing

    Remove debris. Improper detergent or brushes used. Check with TENNANT representative for advice. Worn scrub brushes. Replace scrub brushes. Scrub brushes out of adjustment. Adjust scrub brushes. Debris hopper full. Empty hopper. 2-19 242E MM243 (5--- 92) Home Find... Go To..

  • Page 34: Transporting Machine

    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. 2-20 242E MM243 (5--- 92) Home Find... Go To..

  • Page 35: Machine Storage

    3. Raise the main brush and side brushes. 7. Disconnect the machine and battery 4. Park the machine on a level surface in a cool, connectors. dry area. 2-21 242E MM243 (5--- 92) Home Find... Go To..

  • Page 36: Options

    2. Roll the hopper into position in the machine. NOTE: The right lift arm scrub locking cam must be 02751 HOPPER DOLLY positioned away from the hopper cam on the lift arm. A. Hopper B. Dolly 2-22 242E MM243 (5--- 92) Home Find... Go To..

  • Page 37: Scrub Attachment

    8. Roll the hopper dolly away from the machine. between the scrub attachment and the machine. 9. Raise the hopper and place the hopper support bar in its storage location. Lower the hopper. 10. Turn off the machine. 2-23 242E MM243 (5--- 92) Home Find... Go To..
  • Page 38 WARNING: Raised Hopper May Fall. Engage Hopper Support Bar. 16. Slide the side brush squeegee assembly into position in the squeegee bracket. 17. Slide the two squeegee retaining pins through the bracket and squeegee assembly. 2-24 242E MM243 (5--- 92) Home Find... Go To..

  • Page 39: To Remove Scrub Attachment

    02758 SQUEEGEE ASSEMBLY 02758 SQUEEGEE ASSEMBLY CHAIN A. Hook B. Chain A. Chain C. Retaining Pin B. Hook D. Bracket C. Squeegee Assembly E. Pin Keeper F. Squeegee Assembly 2-25 242E MM243 (5--- 92) Home Find... Go To..
  • Page 40 THE HOPPER WITH DOLLY. location, and lower the scrub attachment. Turn off the machine. 11. Raise the front bumper. 12. Start the machine, raise the scrub attachment slightly. 2-26 242E MM243 (5--- 92) Home Find... Go To..
  • Page 41 ....3-36 HOPPER VACUUM FAN SEAL ... 3-37 242E MM243 (5--- 92) Home Find... Go To..
  • Page 42 TO REPLACE OR ROTATE REAR BLADE 3-45 TO CHECK AND ADJUST REAR SQUEEGEE ..... . 3-47 242E MM243 (5--- 92) Home Find... Go To..

  • Page 43: Maintenance

    2. Check the side brush pattern and main brush patterns. See BRUSHES in the MAINTENANCE. 3. Torque the rear wheel nuts. 4. Perform all 50-hour interval lubrication and maintenance procedures listed in the MAINTENANCE CHART. 242E MM243 (5--- 92) Home Find... Go To..

  • Page 44: Maintenance Chart

    Check condition Main brush belt Check tension and condition Countershaft belt Check tension and condition --- --- Scrub attachment, EE Check tension and condition of vacuum fan belt Batteries Check electrolyte level 242E MM243 (5--- 92) Home Find... Go To..

  • Page 45: Rear Wheel Support

    --- SAE 90 weight gear lubricant --- SAE 140 weight gear lubricant HYDO --- TENNANT or approved hydraulic fluid SPL --- Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433---1). NOTE: More frequent intervals may be required in extremely dusty conditions. 242E MM243 (5--- 92) Home Find...
  • Page 46 500 hours of operation. Use Lubriplate EMB seal damage, and repack after every 500 hours of grease (TENNANT part no. 01433---1). operation. Use Lubriplate EMB grease (TENNANT part no. 01433---1). STEERING GEAR The steering gear controls the steering arm. A...

  • Page 47: Hopper Lift Arm Pivots

    50 hours of operation. Use Lubriplate EMB grease (TENNANT part no. 01433---1). (TENNANT part no. 01433---1). 00550 HOPPER DOOR LATCH 02478 LEFT SIDE HOPPER LIFT BEARING A. Hopper Door Latch A. Grease Fitting B. Grease Fitting B. Lift Bearing 242E MM243 (5--- 92) Home Find... Go To..

  • Page 48: Countershaft Belt Idler

    A grease fitting is mounted to the axle of each of the four casters. Lubricate the casters with a grease gun after every 200 hours of operation. Use Lubriplate EMB grease (TENNANT part no. 01433---1). 02764 DEBRIS HOPPER A. Hopper B.

  • Page 49: Hydraulics

    A breather-filler cap and fluid level dipstick is TENNANT’s hydraulic fluids provide longer life of the mounted on top of the reservoir. The breather hydraulic components. There are two fluids available relieves excess pressure in the reservoir.

  • Page 50: To Drain The Hydraulic Fluid Reservoir

    1. Turn off the machine and set the machine 2. Remove the reservoir breather-filler cap. parking brake. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, Set Parking Brake, And Turn Off Machine And Remove Key. 3-10 242E MM243 (5--- 92) Home Find... Go To..

  • Page 51: Hydraulic Pumps

    5. Fill the hydraulic pump through the case drain port with hydraulic fluid. 6. Start the machine. 7. Press the directional control pedal one-half of its travel in the “forward” direction while also operating the hydraulics for one minute. 3-11 242E MM243 (5--- 92) Home Find... Go To..

  • Page 52: Directional Pedal

    FOR SAFETY: When Servicing Machine, Block Machine Tires Before Jacking Machine Up. 7. Tighten the mounting screws of the spring bracket. 8. Raise the rear of the machine, remove the jack stands, and lower the machine. 3-12 242E MM243 (5--- 92) Home Find... Go To..

  • Page 53: Speed Limiter

    A. Speed Limiter Cam immediately. B. Retaining Nut C. Pump Linkage FOR SAFETY: When Servicing Machine, Use Cardboard To Locate Leaking Hydraulic Fluid Under Pressure. 3-13 242E MM243 (5--- 92) Home Find... Go To..

  • Page 54: Hydraulic Components Troubleshooting

    O-Ring worn or damaged. Replace o-ring. hydraulic motor. Leak between gerotor and Dirt between surfaces. Disassemble, clean parts. end cap. end cap. Scratches, nicks, burrs Polish parts. O-Ring worn or damaged. Replace o-rings. 3-14 242E MM243 (5--- 92) Home Find... Go To..

  • Page 55: Hydraulic Schematic, Low Dump (For Machines Below Serial Number 005106)

    8 GPM @ 2400 RPM 3000 PSI PROPELLING 17.7 IN MOTOR 3000 PSI .8 IN 45 PSI PROPELLING PUMP RESERVOIR 05545 HYDRAULIC SCHEMATIC, LOW DUMP (For machines below serial number 005106) 3-15 242E MM243 (5--- 92) Home Find... Go To..

  • Page 56: Hydraulic Schematic, Low Dump (For Machines Serial Number 005106 And Above)

    VALVE MOTOR 2000 PSI @ 7.5 GPM FILTER CONTROL VALVE 2750 PSI PROPELLING MOTOR 2750 PSI PROPELLING PUMP RESERVOIR 07399 HYDRAULIC SCHEMATIC, LOW DUMP (For machines serial number 005106 and above) 3-16 242E MM243 (5--- 92) Home Find... Go To..

  • Page 57: Hydraulic Schematic, Multi-Level

    8 GPM @ 2400 RPM .0 --- 2.01 IN .8 IN 3000 PSI PROPELLING 17.7 IN MOTOR 3000 PSI 45 PSI PROPELLING PUMP RESERVOIR 05546 HYDRAULIC SCHEMATIC, MULTI-LEVEL DUMP (For machines below serial number 005106) 3-17 242E MM243 (5--- 92) Home Find... Go To..

  • Page 58: Hydraulic Schematic, Multi-Level Dump

    DUMP CYLINDER ROLL-OUT VALVE 2500 PSI @ 10 GPM FILTER 2750 PSI PROPELLING MOTOR 2750 PSI PROPELLING PUMP RESERVOIR 07400 HYDRAULIC SCHEMATIC, MULTI-LEVEL DUMP (For machines serial number 005106 and above) 3-18 242E MM243 (5--- 92) Home Find... Go To..

  • Page 59: Electrical System

    50% charged 1.162 25% charged 1.110 Discharged NOTE: If the readings are taken when the battery electrolyte is any temperature other than 80_ F (27_ C), the reading must be temperature corrected. 3-19 242E MM243 (5--- 92) Home Find... Go To..

  • Page 60: Battery Charging

    Open the battery cover. WARNING: Batteries Emit Hydrogen Gas. Explosion Or Fire Can Result. Keep Sparks And Open Flame Away. Keep Covers Open When Charging. 3-20 242E MM243 (5--- 92) Home Find... Go To..

  • Page 61: Electric Motors

    10. Check the electrolyte level of the batteries; it should be 0.25 in (5 mm) below the bottom of the filling hole. 11. Close the battery cover. Lower the operator seat and replace the seat cushion. 3-21 242E MM243 (5--- 92) Home Find... Go To..

  • Page 62: Electric Schematic

    MAINTENANCE 05805 ELECTRIC SCHEMATIC 3-22 242E MM243 (5--- 92) Home Find... Go To..

  • Page 63: Belts And Chains

    5. Install the new pump belt. Adjust the pump and pump mounting bracket position so that the spring length is 6.0 + 0.1 in (150 + 3 mm) with the slotted nut backed off. 3-23 242E MM243 (5--- 92) Home Find... Go To..

  • Page 64: Main Brush Belt

    EE model machine. Check the belt condition every 50 hours of operation. The vacuum fan belt tension is maintained by a spring mounted idler. No adjustment is necessary. 3-24 242E MM243 (5--- 92) Home Find... Go To..

  • Page 65: Debris Hopper

    Machine; Stop On Level Surface, Set Parking Brake, And Turn Off Machine And Remove Key. 2. Release the two hopper cover latches and remove the hopper cover. 3. Disconnect the shaker motor wire connectors. 3-25 242E MM243 (5--- 92) Home Find... Go To..

  • Page 66: To Install Hopper Dust Filter

    4. Position and secure the hopper cover on the 6. Place the fire door hook over the middle of the hopper with the cover latches. fusible link. 7. Put the hopper cover back on the hopper. 3-26 242E MM243 (5--- 92) Home Find... Go To..

  • Page 67: Debris Hopper

    C. Check and adjust the cams on the lift arms so the hopper brackets rest on the cams. 00593 TORQUE SHAFT HEIGHT A. Torque Shaft B. Measured Distance 02479 HOPPER CAM A. Cam B. Hopper Bracket 3-27 242E MM243 (5--- 92) Home Find... Go To..
  • Page 68 C. Place a 3.00 + 0.13 in (75 + 5 mm) block under each of the rear sides of the hopper. 00563 HOPPER LIFT CYLINDER A. Hopper Lift Cylinder B. Jam Nut C. Cylinder Clevis 3-28 242E MM243 (5--- 92) Home Find... Go To..
  • Page 69 B. Turn the machine off and set the machine parking brake. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, Set Parking Brake, And Turn Off Machine And Remove Key. 3-29 242E MM243 (5--- 92) Home Find... Go To..
  • Page 70 F. Start the machine. 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. 3-30 242E MM243 (5--- 92) Home Find... Go To..

  • Page 71: Brushes

    6. Grasp the main brush; pull it off the brush drive plug and out of the main brush compartment. 5. Drive the machine off the test area. 3-31 242E MM243 (5--- 92) Home Find... Go To..

  • Page 72: Side Brush

    To adjust the brush pattern’s overall width, use the main brush down pressure knob. To increase the brush pattern width, turn the knob counter-clockwise. To decrease the brush pattern width, turn the knob clockwise. 3-32 242E MM243 (5--- 92) Home Find... Go To..

  • Page 73: To Replace Side Brush

    3. Turn off the machine and set the machine parking brake. FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, Set Parking Brake, And Turn Off Machine And Remove Key. 4. Raise the side brush. 3-33 242E MM243 (5--- 92) Home Find... Go To..

  • Page 74: Skirts And Seals

    6. Position the new door skirt and skirt retaining strip on the brush door. 00604 HOPPER LIP SKIRTS A. Hopper Lip Side Skirt B. Retaining Strip C. Hopper Lip Skirts 3-34 242E MM243 (5--- 92) Home Find... Go To..

  • Page 75: To Replace And Adjust Side Skirt

    It should clear the floor by 0.13 in (3 mm). The seal should be inspected for wear or damage and adjustment daily. TO REPLACE AND ADJUST THE REAR SKIRT 1. Stop the machine on a smooth, level surface. 3-35 242E MM243 (5--- 92) Home Find... Go To..

  • Page 76: Hopper Seals

    100 hours of operation. 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 3-36 242E MM243 (5--- 92) Home Find... Go To..

  • Page 77: Hopper Vacuum Fan Seal

    A. Lintel B. Seal C. Mounting Screws D. Bracket To adjust seal contact, loosen the vacuum fan intake bracket mounting screws. Pivot the bracket into the correct position and retighten the screws. 3-37 242E MM243 (5--- 92) Home Find... Go To..

  • Page 78: Brakes And Tires

    Machine And Remove Key. 4. Remove the clevis pins from the left and right side brake clevises. 02457 BRAKE CLEVIS A. Brake Adjusting Clevis B. Threaded Rod C. Brake Cross Shaft 3-38 242E MM243 (5--- 92) Home Find... Go To..

  • Page 79: Options

    Do not use water hotter than 130_ F (54_ C). A sharp instrument may be used to clear the small distribution holes in the spreader tube. 3-39 242E MM243 (5--- 92) Home Find... Go To..

  • Page 80: To Replace Scrub Brush

    10. Check and adjust scrub brush pattern as B. Nut described in TO CHECK AND ADJUST SCRUB C. Scrub Brush BRUSH PATTERN. 4. Pull the brush idler arm off the arm bracket. 3-40 242E MM243 (5--- 92) Home Find... Go To..

  • Page 81: To Check And Adjust Scrub Brush Pattern

    (5 mm), the scrub brush must be checked to see if it is cone shaped. 00582 NORMAL SCRUB BRUSH PATTERN A. Scrub Brush Pattern 00601 TAPERED SCRUB BRUSH PATTERN B. Pattern 3-41 242E MM243 (5--- 92) Home Find... Go To..

  • Page 82: Recovery Tank

    The other door is located at the front of the recovery tank. Keep vacuum hoses and nozzles clean. Clogged hoses are a common cause of poor water pickup. 3-42 242E MM243 (5--- 92) Home Find... Go To..

  • Page 83: To Clean The Recovery Tank

    6. Close the clean-out doors by positioning the doors against the recovery tank, turning the door handles so the four fingers line up behind the tank wall, and tighten the lock knob. 3-43 242E MM243 (5--- 92) Home Find... Go To..

  • Page 84: Side Squeegee

    D. Chain E. Hook 3. Pull the pin keeper out and remove the two squeegee assembly retaining pins. Release the pin keeper. 4. Slide the squeegee assembly out of the machine. 3-44 242E MM243 (5--- 92) Home Find... Go To..

  • Page 85: Rear Squeegee

    11. Pull the pin keeper out, turn the squeegee retaining pins so they are under the pin keeper, and release the keeper. 12. Connect the squeegee assembly chain to the chain hook. 3-45 242E MM243 (5--- 92) Home Find... Go To..
  • Page 86 5. Remove the retaining strips and screws holding the front and rear squeegee blades on the squeegee assembly frame. 6. Remove the back-up strip and then the rear squeegee blade. Remove the front squeegee blade. 3-46 242E MM243 (5--- 92) Home Find... Go To..

  • Page 87: To Check And Adjust Rear Squeegee

    A. Squeegee Tip Adjustment A. Squeegee B. Squeegee Down Pressure Adjustment B. Deflection NOTE: The squeegee blades must be new or have a new wiping edge contacting the floor to correctly adjust the squeegee. 3-47 242E MM243 (5--- 92) Home Find... Go To..
  • Page 88 MAINTENANCE 3-48 242E MM243 (5--- 92) Home Find... Go To..

  • Page 89: Appendix

    HYDRAULIC O---RING FITTING TORQUE CHART ......242E MM243 (9--- 89) Home Find... Go To..
  • Page 90 APPENDIX 242E MM243 (9--- 89) Home Find... Go To..

  • Page 91: Hardware Information

    260 (352) 336 (455) Locktite 515 sealant --- gasket forming material. 470 (637) 664 (900) TENNANT Part No. 75567,15 oz (440 ml) cartridge. NOTE: Decrease torque by 20% when using a thread lubricant. Locktite 242 blue --- medium strength thread locking compound.

  • Page 92: 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) 242E MM243 (9--- 89) Home Find... Go To..

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