Tennant 3640G/LP Service Manual
  1. Manuals
  2. Brands
  3. Tennant Manuals
  4. Blower
  5. 3640G/LP
  6. Service manual

Tennant 3640G/LP Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
3640G/LP
Service Manual
330585
Rev. 01 (12- -01)
Home
Find... Go To..

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 3640G/LP and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Tennant 3640G/LP

Summary of Contents for Tennant 3640G/LP

  • Page 1 3640G/LP Service Manual 330585 Rev. 01 (12- -01) Home Find... Go To..
  • Page 2 This service manual is intended to be an aid for the disassembly and reassembly of your TENNANT Model 3640G/LP walk behind sweeper. The set is organized into five major groups: General Information, Chassis, Sweeping, Electrical, and Engine G/LP. General Information: Safety precautions, machine transport, machine jacking, machine storage, chassis lubrication, machine specifications, and machine maintenance chart.

  • Page 3: Table Of Contents

    ....1--14 THREAD SEALANT AND LOCKING COMPOUNDS ....1--14 3640G/LP 330585 (12- -01) Home Find... Go To..
  • Page 4 GENERAL INFORMATION 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 5: Safety Precautions

    Do not use the machine other than - - Avoid contact with battery acid. described in this Operator Manual. The machine - - Use Tennant supplied or equivalent is not designed for use on public roads. replacement parts. The following information signals potentially 6.
  • Page 6 ON THE CONTROL PANEL ON THE CONTROL PANEL BACK STRAIN LABEL - - LOCATED ON THE MOTOR COMPARTMENT COVER FLYING DEBRIS WARNING LABEL - - LOCATED ON THE MOTOR COMPARTMENT COVER 350841 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 7: Specifications

    1588 mm (62.5 in) Minimum turning radius 794 mm (31.25 in) Maximum rated climb and descent angle Fuel consumption -- Gasoline engine 0.75 L/hr (0.2 gal/hr) Fuel consumption -- LPG engine 0.4 kg/hr (0.9 lb/hr) 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 8: Power Type

    Casters 35 mm wide x 127 mm OD (1.375 in wide x 5 in OD) Rear (2) Solid 45 mm wide x 305 mm OD (1.75 in wide x 12 in OD) 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 9: Machine Dimensions

    GENERAL INFORMATION 610 mm (24 in) 820 mm (32.25 in) 815 mm (32 in) 1475 mm (58 in) 960 mm (37.7 in) 350910 MACHINE DIMENSIONS 3640G/LP 330585 (12- -01) Home Find... Go To..

  • Page 10: Maintenance

    Side brush motor(s) Check motor brushes 1 (2) LUBRICANT/FLUID ..Engine oil, 30 SAE -- CD/SF rated . . . Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433--1) 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 11: Pushing And Transporting The Machine

    4. Position the machine onto the truck or trailer as far as possible. If the machine starts to veer off the centerline of the truck or trailer, stop and center the machine. 3640G/LP 330585 (12- -01) Home Find... Go To..
  • Page 12 Do not push the machine off the truck or trailer unless the loading surface is horizontal AND 380 mm (15 in) or less from the ground. 1-10 3640G/LP 330585 (12- -01) Home Find... Go To..

  • Page 13: Machine Storage

    1. Raise the main and side brush(es). 2. Empty and clean the debris hopper. 3. Drain or disconnect and remove (LPG tank) fuel system. 1-11 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 14 Replace the spark plug. 6. Clean the engine cooling fins. 7. Store the machine in a clean dry area. 1-12 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 15: Static Drag Chain

    Make sure the chain is always touching the floor. Always use a internal tooth lock washer between the chain and rear guard to ensure a proper electrical connection. 1-13 3640G/LP 330585 (9- -95) Home Find... Go To..

  • Page 16: Hardware Information

    They include the following: 0.75 in 215--280 313--407 (291--380) (424--552) Locktite 515 sealant -- gasket forming material. TENNANT Part No. 75567,15 oz 1.00 in 500--650 757--984 (440 ml) cartridge. (678--881) (1026--1334) NOTE: Decrease torque by 20% when using a Locktite 242 blue -- medium strength thread thread lubricant.
  • Page 17 ..2--26 TO REPLACE DRIVE BELT IDLER PULLEY ..... . . 2--32 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 18 CHASSIS 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 19: Introduction

    CHASSIS INTRODUCTION This section includes information on the main chassis related components for example the rear wheels, casters, and transaxle. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 20: Rear Tires And Wheels

    3. Pull the hub cap off the drive wheel. 4. Pull the tire and wheel assembly off the drive axle. Be careful not to loose pin from axle cross hole. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 21: To Install Rear Tire

    2. Install the hub cap on the drive wheel. 3. Install the flat head screw in the end of the axle. Tighten to 7.6 -- 9.9 Nm (6 -- 8 ft lb). 4. Remove the blocks and lower the machine. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 22: Casters

    5. Install the two hex screws and tighten to 18 -- 24 Nm (15 -- 20 ft lb). 6. Remove the blocks and lower the machine. 7. Operate the machine and check the new caster for proper operation. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 23: Shift Cable

    1. Remove the filter cover from the rear of the machine. 2. Move the directional control lever to the park position. 3. Remove the handle stop bracket from the upper/left side of the filter compartment. 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 24 Move the directional control lever out away from the mount plate. 7. Remove the cotter pin and clevis pin from the end of the shift cable. 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 25 10. Remove the two hex screws holding the shift cable mount clamp to the machine frame. 11. Remove the shift cable mounting clamp from the cable. 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 26 15. Place the cable and jam nuts in the slot of the mount plate with 2--3 threads showing above the upper nut. Firmly tighten the jam nuts. 2-10 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 27 Re--tighten the jam nut against the cable ball end. 19. Reinstall the left side handle assembly cover plate. Tighten the three hex screws to 18 -- 24 Nm (15 -- 20 ft lb). 2-11 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 28 22. Start the machine and check the shift lever for proper gear selection and operation. If the shift lever does not operate properly, see TO ADJUST SHIFT CABLE instructions in this section. 2-12 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 29: To Adjust Shift Cable

    Pop the cable end off the ball end on the link. 3. Once the cable end is off the ball end, verify that the shift link is in the PARK detent. 2-13 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 30 Re- -tighten the jam nut. 5. If more adjustment is needed, the shift cable can be adjusted at the two jam nuts behind the plastic handle cover or at the upper clevis. 2-14 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 31: Transaxle/Transmission

    2. Place blocks under the machine frame. 3. Remove the rear cover from the drive belt. 4. Slip the main drive belt off the sheave on the transaxle. 2-15 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 32 8. Remove the two hex screws holding the shift cable mount clamp to the machine frame. 2-16 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 33 11. Spread the left handle leg out far enough to drop it down past the end of the left axle shaft. 12. Remove the left brush arm and wear ring from the machine frame. 2-17 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 34 14. First drop the transaxle down out of the left side of the machine then pull it out of the right handle opening and right side brush arm. Remove the transaxle from the machine. 2-18 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 35: To Install Transaxle

    NOTE: Install 3 flat washers under the transaxle where the 30mm hex screw goes. 3. Position the wear ring and left brush arm over the end of the left axle shaft. 2-19 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 36 NOTE: The slot in the brush arm is used to adjust the taper of the main brush pattern. 7. Reinstall the shift cable on the ball end on the shift lever. 2-20 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 37 Check for proper operation of the shifter and transaxle. Also check the main brush pattern and adjust if tapered. See TO CHECK AND ADJUST MAIN BRUSH PATTERN instructions in the SWEEPING section. 2-21 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 38: Transaxle Breakdown

    CHASSIS TRANSAXLE BREAKDOWN 2-22 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 39: To Replace Flat Drive Belt

    1. Open the cover and engage the prop rod. 2. Remove the rear cover from the drive belt at the transaxle sheave. 3. Loosen the vacuum fan pivot bolt and remove the vacuum fan belt from the engine sheave. 2-23 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 40 8. Adjust the belt stop so it just clears the flat belt when it is tight. This to stop the belt from moving when the machine is in neutral. 2-24 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 41 18 -- 24 Nm (15 -- 20 ft lb). 11. Reinstall the rear belt cover on the machine. 12. Start the machine and operate the clutch bar. Check for proper engagement of the new belt and smooth operation. 2-25 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 42: To Replace Drive Belt Idler Cable (Clutch Handle Cable)

    2. Remove the handle stop bracket from the upper/left side of the filter compartment. 3. Pull up on the two handle locks and move the handle assembly to its lowest position. 2-26 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 43 Disconnect the spring from the cable. 7. Loosen the two jam nuts on the cable where it mounts to the bracket near the shaker motor. Slip the cable out of the mount slot. 2-27 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 44 10. Remove the nut holding the clutch cable clamp to the cable lever mount plate. Note the position of the clamp and cable. 11. Remove the cable from the machine by pulling it toward the vacuum fan. 2-28 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 45 14. Connect the tension spring from the idler arm to the end of the new drive belt idler cable. 15. Reinstall the cable in the clamp on the vacuum fan housing. 2-29 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 46 18. Reinstall the left side cover plate. Tighten the three hex screws to 18 -- 24 Nm (15 -- 20 ft lb). 19. Move the handle assembly up to one of the four adjustment holes. 2-30 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 47 Move the cable or cable bracket up or down and re--tighten the jam nuts. Close the cover and re--check. 2-31 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 48: To Replace Drive Belt Idler Pulley

    2. Slip the drive belt off the transaxle sheave and idler pulley. 3. Remove the hex screw and nut holding the idler pulley to the idler arm. Remove the idler pulley. Retain the spring mount bracket. 2-32 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 49 5. Slip the drive belt back over the transaxle sheave and the new idler pulley. 6. Lower the engine cover and operate the machine. Check the new idler for proper operation. 2-33 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 50 CHASSIS 2-34 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 51 ......3--44 TO REPLACE SIDE BRUSH HOUSING ..... 3--50 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 52 SWEEPING 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 53: Introduction

    The side brush sweeps debris in front of the machine and the main brush sweeps the debris into the hopper. The vacuum fan pulls air from the hopper and through the dust filter. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 54: Debris Hopper

    2. Lift on the handle and pull the hopper slightly up and forward. 3. Use your other hand to lift the front of the hopper. 4. Lift the hopper up and out of the machine frame. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 55: To Install Debris Hopper

    2. Let the hopper rest on the machine front frame rails. 3. Push the hopper back until the two frame knobs are lined up with the two indentations in the hopper. The hopper is now in its correct position. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 56: Hopper Dump Assist Handle

    NOTE: Do not attempt to lift the hopper when it is full of debris without assistance. Dump the debris from the hopper into a pile on the floor near a trash can or dumpster, then pick the debris up with a shovel. 3640G/LP 330585 (12- -01) Home Find... Go To..

  • Page 57: Thermo Sentryt

    1. Open the cover and engage the prop rod. 2. Locate the Thermo Sentryton the back wall just above the filter shaker motor. 3. Disconnect the wire from the terminals on the Thermo Sentryt. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 58: Vacuum Wand

    Use the vacuum wand to pick up debris in narrow or partially enclosed areas that cannot be swept by the machine. NOTE: The vacuum hose screws into the vacuum nozzle (left hand thread). Un- -screw to replace the hose. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 59: Hopper Dust Filter

    The optional filter is a panel style that can be cleaned and re--used multiple times. The optional filter also comes with a filter shaker system that can be used to shake the filter between cleanings. Panel filter 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 60: To Replace Filter Bag (Standard)

    2. Let the filter cover pivot down until it stops. NOTE: Remove the filter cover to empty any dirt that has collected. 3. Pull the filter bag off the 90_ air horn. Remove the filter bag from the machine. 3-10 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 61 6. Reconnect the two filter clamps and snap them into the lock position. Reinstall the vacuum wand in the mount hole. 7. Start the machine and check the hopper filter area for any air leaks. 3-11 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 62: To Replace Panel Dust Filter (Optional)

    2. Let the filter cover pivot down until it stops. NOTE: Remove the filter cover to empty any dirt that has collected. 3. Un--snap the catch lock on the filter lock bars. 3-12 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 63 9. Reconnect the two filter clamps and snap them into the lock position. Reinstall the vacuum wand in the mount hole. 10. Start the machine and check the hopper filter area for any air leaks. 3-13 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 64: Main Brush

    2. Go to the left side of the machine and locate the main brush idler side knob pin. This pin is located in the brush arm, just ahead of the LH drive wheel. 3-14 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 65 5. After the main brush has been removed from the machine, remove the bearing assembly from the idler side end of the brush. 6. Install the bearing assembly in either end of the new brush. 3-15 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 66 A detent type lock should be felt. 10. Reinstall the debris hopper and operate the machine. Check the taper of the main brush and adjust if needed. See TO ADJUST MAIN BRUSH instructions. 3-16 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 67: To Check And Adjust Main Brush Pattern

    Re--tighten the hardware to 18 -- 24Nm (15 -- 20 ft lb). 6. Follow steps 1 thru 4 to re--check the brush pattern. 3-17 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 68: To Replace Main Brush Lift Cable

    3. Remove the three hex screws holding the cover plate to the inside of the right side handle tower. Remove the cover plate from the machine. 3-18 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 69 Remove the cotter pin and clevis pin from the lift cable and brush lift arm. 3-19 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 70 NOTE: Add a cable tie around the new main brush lift cable and the existing side brush lift cable. This will prevent the side brush lift cable from drooping down and rubbing on the brush drive pulley. 3-20 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 71 15. Go up to the main brush lift lever and install the nut on the main brush lift cable mount clamp. Tighten the nut to 7.6 -- 9.9 Nm (6 -- 8 ft lb). 3-21 3640G/LP 330585 (NIL) Home Find... Go To..
  • Page 72 18. Reinstall the right side handle assembly cover plate. Tighten the three hex screws to 18 -- 24 Nm (15 -- 20 ft lb). 19. Move the handle assembly up to one of the four adjustment holes. 3-22 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 73 22. Close the engine cover. 3-23 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 74: To Replace Main Brush Drive Belt

    3. Remove the flat head screw holding the hub cap and drive wheel to the axle. Pull the tire and wheel assembly off the drive axle. Be careful not to loose pin from axle cross hole. 3-24 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 75 First, loop it over the engine sheave, then, sheave over the main brush drive plug sheave, then, the idler sheaves. Front of machine Idler pulleys Flat belt Main brush drive sheave 3-25 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 76 Put machine in Park and install hub/wheel assembly. 11. Install the main brush. See TO REPLACE MAIN BRUSH instructions. Lower the machine and operate the main brush. Check for proper operation. 3-26 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 77: To Replace Main Brush Drive Belt Idler Bearings

    3. Remove the flat head screw holding the hub cap and drive wheel to the axle. Pull the tire and wheel assembly off the drive axle. Be careful not to loose pin from axle cross hole. 3-27 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 78 7. Remove the hex nut or hex screw holding the idler pulley to the idler arm. Remove the idler pulley from the machine. 3-28 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 79 10. Place the main brush lift lever in the down position. 11. Remove the screw driver from the brush arm. Place the main brush lift lever in the up position. Reinstall the belt drive plate. 3-29 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 80 Put machine in Park and install hub/wheel assembly. 13. Install the main brush. See TO REPLACE MAIN BRUSH instructions. 14. Lower the machine and operate the main brush. Check for proper operation. 3-30 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 81: To Replace Main Brush Drive Sheave

    3. Remove the flat head screw holding the hub cap and drive wheel to the axle. Pull the tire and wheel assembly off the drive axle. Be careful not to loose pin from axle cross hole. 3-31 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 82 6. Remove the brush belt from the engine sheave, belt tensioner sheaves, and main brush drive plug sheave. 7. Remove the screw holding the brush drive plug to the pulley shaft. Remove the drive plug and square key. 3-32 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 83 Reinstall the screw and tighten to 7.6 -- 9.9 Nm (6 -- 8 ft lb). 11. Reinstall the main brush drive belt. Engine/motor sheave Front of machine Idler pulleys Flat belt Main brush drive sheave 3-33 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 84 Put machine in Park and install hub/wheel assembly. 15. Install the main brush. See TO REPLACE MAIN BRUSH instructions. 16. Lower the machine and operate the main brush. Check for proper operation. 3-34 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 85: To Replace Stainless Steel Brush Arm Wear Rings

    2. Remove both rear tires. See TO REMOVE REAR TIRE instructions in the CHASSIS section. 3. Remove the hex screw, sleeve, and nut holding the brush shaft to both brush arms. 3-35 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 86 Remove the right brush arm from the machine. The wear ring can now be replaced or cleaned. If the wear ring is loose----use RTV sealant between the ring and the frame. Reinstall the right brush arm. 3-36 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 87 Place the main brush lift lever in the up position. Reinstall the belt drive plate. 11. Spread the handle legs out far enough to reinstall them up past the end of the transaxle shafts. 3-37 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 88 Put machine in Park and install hub/wheel assembly. 14. Install the main brush. See TO REPLACE MAIN BRUSH instructions. 15. Lower the machine and operate the main brush. Check for proper operation. 3-38 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 89: To Remove Main Brush Shaft

    2. Go to the back of the machine and locate the brush shaft running between the left and right brush arms. 3. Remove the tension spring from the right side of the brush shaft. 3-39 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 90 5. Remove the two hex screws, sleeves, and nuts holding the brush shaft to the upper pivot bar. Remove the brush shaft from the machine. 3-40 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 91: To Install Main Brush Shaft

    4. Start the machine and check the main brush pattern. See TO CHECK AND ADJUST MAIN BRUSH PATTERN instructions. 5. Raise and lower the main brush. Check the brush linkage for any binding or hanging up. 3-41 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 92: Side Brush

    2. Go under the side brush and locate the hair pin clip on the bottom of the side brush motor shaft. Pull the pin out. NOTE: Some early models have two spacer washers under the hairpin. 3-42 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 93 6. Reinstall the hair pin clip in the bottom of the side brush motor shaft. 7. Start the machine and check the side brush for proper operation. 3-43 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 94: To Replace Side Brush Lift Cable

    3. Remove the three hex screws holding the cover plate to the inside of the right side handle tower. Remove the cover plate from the machine. 3-44 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 95 6. Remove the nut from the clamp holding the side brush cable to the mount plate. 7. Remove the debris hopper from the machine. 3-45 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 96 11. Pull the spring and cable assembly out of the machine frame. 3-46 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 97 14. Reconnect the cable to the side brush spring assembly. Reinstall the spring assembly on the frame. Tighten the two hex screws to 7.6 -- 9.9 Nm (6 -- 8 ft lb). 3-47 3640G/LP 330585 (NIL) Home Find... Go To..
  • Page 98 17. Install the clevis pin and cotter pin in the end of the new cable where it attaches to the side brush lift lever. 18. Position the brush lift lever assembly back onto the right handle arm. 3-48 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 99 21. Reinstall the filter cover and the handle stop bracket. 22. Start the machine and check the side brush lift cable for proper operation. 23. Close the engine cover. 3-49 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 100: To Replace Side Brush Housing

    2. Lower the side brush(s). 3. Remove the side brush(es). See TO REPLACE LH OR RH SIDE BRUSH instructions in the SWEEPING section. 4. Un--plug the side brush motor(s) from the main electrical harness. 3-50 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 101 7. Remove the two screws holding the side brush lift cable assembly to the side brush housing. 8. Remove the hex screw and sleeve from the left side of the side brush housing. 3-51 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 102 NOTE: Push the housing down to install the hardware. Lift up on the front of the housing and push the side brush bracket toward the rear of the machine. Tighten the hardware. 3-52 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 103 ELECTRICAL section. 16. Reinstall the side brush(es). See TO REPLACE LH OR RH SIDE BRUSH instructions in the SWEEPING section. 17. Operate the machine and check the side brush for proper operation. 3-53 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 104: Skirts And Seals

    1. Remove the hopper from the machine. See TO REMOVE DEBRIS HOPPER instructions. 2. Dump any debris from the hopper. 3. Remove the hex screws holding the skirt and retainer to the hopper lip. 3-54 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 105 5. Position the new skirt and existing retainer on the hopper. Reinstall the hardware and tighten to 7.6 -- 9.9 Nm (6 -- 8 ft lb). 6. Reinstall the debris hopper. See TO INSTALL DEBRIS HOPPER instructions. 3-55 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 106: Rear Skirt

    Servicing Machine; Stop On Level Surface, Place Shifter In Park. 1. Remove the hopper from the machine. See TO REMOVE DEBRIS HOPPER instructions. 2. Remove the main brush. See TO REPLACE MAIN BRUSH instructions. 3-56 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 107 6. Reinstall the main brush. See TO REPLACE MAIN BRUSH instructions. 7. Reinstall the hopper in the machine. See TO INSTALL DEBRIS HOPPER instructions. 8. Operate the machine and check for proper sweeping operation. 3-57 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 108: Upper Hopper Seal

    1. Remove the hopper from the machine. See TO REMOVE DEBRIS HOPPER instructions. 2. Lift the upper hopper seal up slightly and locate the plastic rivets holding the seal to the machine. 3-58 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 109 Start by placing the body of the rivet in the hole first, then screw the center pin into the body until it snaps in place. 7. Reinstall the hopper in the machine. See TO INSTALL DEBRIS HOPPER instructions. 3-59 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 110: Main Brush Dust Seals

    Servicing Machine; Stop On Level Surface, Place Shifter In Park. 1. Remove the hopper from the machine. See TO REMOVE DEBRIS HOPPER instructions. 2. Remove the main brush. See TO REPLACE MAIN BRUSH instructions. 3-60 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 111 6. Install the seven plastic rivets in the mount holes. Start by placing the body of the rivet in the hole first, then push the center pin into the body until it snaps in place. 3-61 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 112 SWEEPING 7. Reinstall the main brush. See TO REPLACE MAIN BRUSH instructions. 8. Reinstall the hopper in the machine. See TO INSTALL DEBRIS HOPPER instructions. 3-62 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 113: To Replace Right Brush Seal (Drive Belt Side)

    2. Remove the main brush. See TO REPLACE MAIN BRUSH instructions. 3. Remove the hex screw holding the main brush drive plug to the shaft. Pull the drive plug off the shaft. 3-63 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 114 8. Install the new right dust seal and plate assembly on the machine. Line up the holes in the new seal with the mount holes in the machine frame. 3-64 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 115 7.6 -- 9.9 Nm (6 -- 8 ft lb). 11. Reinstall the main brush. See TO REPLACE MAIN BRUSH instructions. 12. Reinstall the hopper in the machine. See TO INSTALL DEBRIS HOPPER instructions. 3-65 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 116: Vacuum Fan

    Surface, Place Shifter In Park. 1. Open the engine cover. 2. Remove the air duct running from the top of the vacuum fan to the front wall of the dust filter. 3-66 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 117 V--belt from the pulley on the fan. 6. Remove the hex screw and nut holding the vacuum fan assembly to the pivot mount bracket. Remove the vacuum fan from the machine. 3-67 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 118: To Install Vacuum Fan Assembly

    Install the hex screw and nut. Tighten so the vacuum fan can pivot freely for belt tensioning. 3. Install the bolt in the tension slot and vacuum fan housing. Leave loose for now. 3-68 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 119 6. Reinstall the clamp and cable on the top of the vacuum fan housing. 7. Reinstall the air duct running from the top of the vacuum fan to the front wall of the dust filter. 3-69 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 120 SWEEPING 8. Close the engine cover. 9. Start the machine and check the vacuum fan for proper operation. 3-70 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 121: To Replace Vacuum Fan Impeller

    2. Remove the smaller hex screws holding the vacuum fan housing to the bearing backing plate. Pull the housing off the backing plate. 3. Hold the impeller from turning. Remove the hex nut from the impeller shaft. 3-71 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 122 8. Reinstall the vacuum fan assembly in the machine. See TO INSTALL VACUUM FAN ASSEMBLY instructions. 9. Start the machine and check the vacuum fan for proper operation. 3-72 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 123: To Replace Vacuum Fan Impeller Bearings

    2. Remove the smaller hex screws holding the vacuum fan housing to the bearing backing plate. Pull the housing off the backing plate. 3. Hold the impeller from turning. Remove the hex nut from the impeller shaft. 3-73 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 124 7. Use a press to remove the impeller shaft and inner bearing from the bearing housing. Press the bearing and shaft in the direction of the fan shaft. 8. Press the second bearing out of the housing. 3-74 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 125 12. Reinstall the bearing assembly on the backing plate. Reinstall the hardware and tighten to 7.6 -- 9.9 Nm (6 -- 8 ft lb). 3-75 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 126 17. Reinstall the vacuum fan assembly in the machine. See TO INSTALL VACUUM FAN ASSEMBLY instructions. 18. Start the machine and check the vacuum fan for proper operation. 3-76 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 127: To Tension Vacuum Fan V--Belt

    1 kg (2 lb) at belt midpoint. The proper deflection should be 5 mm (0.09 in).Tighten the tension bolt to 18 -- 24 Nm (15 -- 20 ft lb). 3-77 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 128 SWEEPING 4. Close the engine cover. 5. Start the machine and check the vacuum fan for proper operation. 3-78 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 129: Machine Troubleshooting

    Machine will not start Thermo Sentryt tripped Reset Thermo Sentryt Engine oil level low Check and fill Fuel tank valve closed Open valve -- LPG tank valve or valve below gas tank 3-79 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 130 SWEEPING 3-80 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 131 ....4--26 ENGINE WILL NOT START ..4--27 FILTER SHAKER WILL NOT WORK 4--28 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 132 ELECTRICAL 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 133: Introduction

    ELECTRICAL INTRODUCTION This section includes information on machine electrical components such as relays, circuit breakers, switches, and wiring harness. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 134: Electrical System

    ELECTRICAL ELECTRICAL SYSTEM The electrical system on the model 3640G/LP consists of a battery, internal engine alternator, filter shaker motor, side brush motor(s), circuit breakers, relays, and switches. BATTERY The battery on the model 3640 is a 12 volt wet style.

  • Page 135: To Replace Battery

    Surface, Place Shifter In Park. 1. Open the engine cover and engage the prop rod. 2. Disconnect the battery cables from the battery. 3. Remove the battery hold down strap from the battery. Remove the battery. 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 136 ELECTRICAL 4. Install the new battery in the machine. 5. Install the battery hold down strap. 6. Reconnect the battery cables. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 137: Instrument Panel

    The circuit breaker Is located on the instrument panel. The chart below shows the circuit breaker and the electrical components it protects. Circuit Rating Circuits Protected Breaker 15 A --Ignition --Side brush(es) --Shaker motor 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 138: To Replace Circuit Breaker

    1. Open the engine cover and engage the prop rod. 2. Locate the circuit breaker that needs to be changed. 3. Disconnect the wires leading to the back of the circuit breaker. 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 139 6. Reconnect the wires to the back of the new circuit breaker. See schematic in this section. 7. Close the engine cover. Start the machine and check the new circuit breaker for proper operation. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 140: Hourmeter

    The ignition switch starts and stops the engine using a key. Start: Turn the engine key clockwise as far as it will go. Release the key as soon as the engine starts. Stop: Turn the engine key counterclockwise. 4-10 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 141: Electric Motors

    FOR SAFETY: Before Leaving Or Servicing Machine; Stop On Level Surface, Place Shifter In Park. 1. Open the engine cover and engage the prop rod. 2. Disconnect the battery cables from the battery. 4-11 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 142 6. Loosen the two set screw holding the weight to the motor shaft. Slide the weight off and install it on the new motor in the same orientation. Firmly tighten the set screws. 4-12 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 143 8. Plug the new shaker motor into the main electrical harness. See schematic in this section. 9. Reconnect the battery cables. 10. Close the engine cover. Start the machine and check the new shaker motor for proper operation. 4-13 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 144: To Replace Side Brush Motor

    1. Open the engine cover and engage the prop rod. 2. Disconnect the battery cables from the battery. 3. Remove the RH side brush. See TO REPLACE LH OR RH SIDE BRUSH instructions in the SWEEPING section. 4-14 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 145 7. Position the new side brush motor and gear box in the machine. Line up the mount holes in the machine frame with the mount holes in the side brush motor. 4-15 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 146 LH OR RH SIDE BRUSH instructions in the SWEEPING section. 11. Reconnect the battery cables. 12. Close the engine cover. Start the machine and check the new RH side brush motor for proper operation. 4-16 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 147: To Replace Side Brush Switch

    2. Remove the handle stop bracket from the upper/left side of the filter compartment. 3. Pull up on the two handle locks and move the handle assembly to its lowest position. 4-17 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 148 6. Mark and disconnect the wires leading to the side brush switch. 7. Remove the two screws and nuts holding the switch to the brush handle mount plate. Remove the side brush switch from the machine. 4-18 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 149 Reinstall the hardware. 11. Reinstall the right side handle assembly cover plate. Tighten the three flat screws to 18 -- 24 Nm (15 -- 20 ft lb). 4-19 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 150 13. Reinstall the filter cover. 14. Reinstall the handle stop bracket. 15. Start the machine and check the side brush for proper operation when the handle is placed in the down position. 4-20 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 151: To Replace Relay

    Surface, Place Shifter In Park. 1. Open the engine cover and engage the prop rod. 2. Disconnect the battery cables from the battery. 3. Locate the relay block on the back wall, behind the engine. 4-21 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 152 Push the relay in all the way. 6. Reconnect the battery cables. 7. Close the engine cover. Start the machine and check the new relay for proper operation. 4-22 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 153: Electrical Schematic/Gas

    ELECTRICAL 350890 ELECTRICAL SCHEMATIC/GAS 4-23 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 154: Electrical Schematic/Lpg

    STANDARD PARTS Fig. 21 - - Electrical Schematic LPG CB- -1 12 VOLT BATTERY 1A/RED GRND 15 AMP 1/RED STARTER MOTOR AVERAGE STARTER 13/BLK MOTOR CURRENT: 45 AMPS LP FUEL START SOLENOID KEY SWITCH GRND START STARTER MOTOR RELAY 4B/YEL 6/BLU GRND (OPTIONAL) SIDE...

  • Page 155: Wire Harness Gas/Lp

    ELECTRICAL WIRE HARNESS GAS/LP 4-25 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 156: Troubleshooting

    The troubleshooting flow charts that follow are organized so they lead you through the circuits. They include flow charts and instructions for you as to where to insert your test instruments. 4-26 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 157: Engine Will Not Start

    SWITCH IS IN THE START POSITION BATTERY VOLTAGE CHECK OUT THE FUEL SYSTEM REPLACE THE AND CHECK FOR SPARK AT STARTER SOLENOID THE SPARK PLUG REPLACE THE REPAIR OR REPLACE KEY SWITCH THE STARTER MOTOR 4-27 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 158: Filter Shaker Will Not Work

    BETWEEN ANY 4/YEL AND ANY 14/BLU WHEN THE KEY SWITCH IS OFF WHILE PRESSING THE SHAKER MOTOR SWITCH BATTERY REPLACE THE VOLTAGE FILTER SHAKER SWITCH REPLACE THE SHAKER DONE MOTOR RELAY 4-28 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 159 ....5--20 TO INSTALL ENGINE ....5--24 3640G/LP 330585 (12- -01) Home Find... Go To..
  • Page 160 ENGINE- -GAS/LP 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 161: Introduction

    ENGINE- -GAS/LP INTRODUCTION This section includes repair information on the engine and related systems, such as fuel, electrical, and drive belts. This section includes information on the gas and LP engines. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 162: Lubrication

    2. Go to the rear of the machine and locate the engine oil drain plug on the right hand side, above the brush arm bracket. 3. Slide a drain pan under the brush arm bracket in the area below the drain plug. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 163: Low Oil Warning Indicator

    If the low oil engine shutdown switch has been activated and the engine has turned itself off, the low oil warning indicator will illuminate. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 164: Air Intake System

    1. Open the engine cover and engage the prop rod. 2. Locate the air filter cover on the front of the engine. 3. Un--snap the clamp holding the filter cover to the carburetor mount plate. 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 165 5. Install the new air filter and existing filter cover on the mount plate. 6. Reconnect the filter cover clamp and snap in place. 7. Close the engine cover and operate the machine. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 166: Cooling System

    GOVERNOR The governor on the model 3640 is an internal mechanical style using a centrifugal flyweight system. It requires no regular maintenance or adjustment. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 167: Fuel System -- Gasoline

    The engine on the model 3640 does not have an in--line fuel filter. This engine is equipped with a sediment bolt at the fuel tank shut--off valve. Clean the sediment bowl every 100 to 200 hours. 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 168: To Clean Fuel Tank Sediment Bowl

    3. Start the engine and let it run until all of the gas is used in the fuel line and carburetor. 4. Remove the sediment bowl from the bottom of the fuel tank shut--off valve. 5-10 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 169: Gas Carburetor

    The gas carburetor is a horizontal draft, float type. Use an automobile grade of gasoline for best performance. This carburetor should not need to be adjusted. Remove, disassemble, and clean the carburetor every 500 to 600 hours. 5-11 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 170: Fuel System -- Lpg

    1. Close the valve on the LP tank. 2. Run the engine until all of the LP gas has been used up in the fuel lines. 3. Disconnect the coupler at the tank outlet. 5-12 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 171 7. Position the tank strap over the tank and snap the lock clamp. 8. Re--connect the LP coupler on the tank valve. Turn on the valve. 9. Start the engine and check the coupler for leaks. 5-13 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 172: Engine Choke Knob

    The outlet port on the regulator is connected by hose to the LP carburetor. The LP regulator senses engine vacuum and controls the amount of LP fuel that flows to the carburetor. The LP regulator is non--adjustable. 5-14 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 173: Ignition System

    5. Install the new spark plug. Tighten firmly. 6. Reconnect the spark plug wire. 7. Close the engine cover and start the machine. 8. Clean or replace the spark plug every 50 hours. Replace with NGK B6HS. 5-15 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 174: Alternator

    LOW BATTERY CHARGE INDICATOR The low battery charge indicator will illuminate when the battery charging system is not functioning properly. If the light remains on after the engine starts, contact TENNANT service personnel. 5-16 3640G/LP 330585 (5- -00) Home...

  • Page 175: To Replace Starter

    1. Open the engine cover and engage the prop rod. 2. Disconnect the battery cables from the battery. 3. Disconnect the wire leading from the battery to the stud on the starter. 5-17 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 176 6. Remove the starter from the engine. 7. Position the new starter in the engine compartment. Line up the starter with the opening into the flywheel. 8. Reinstall the upper attachment bolt. Leave loose for now. 5-18 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 177 10. Reconnect the wire leading from the battery to the stud on the starter. 11. Reconnect the battery cables. 12. Start the engine. Check the new starter for proper operation. 5-19 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 178: To Remove Engine

    Servicing Machine; Stop On Level Surface, Place Shifter In Park. 1. Open the engine cover and engage the prop rod. 2. Disconnect the battery cables. 3. LP MACHINE: Remove the LP tank and mounting brackets. 5-20 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 179 5. Disconnect the choke cable at the carburetor. 6. Remove the flat drive belt from the engine sheave. 7. Loosen the vacuum fan belt and remove it from the engine sheave. 5-21 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 180 11. Remove the main brush from the machine. See TO REPLACE MAIN BRUSH instructions in the SWEEPING section. 5-22 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 181 14. The engine can now be removed from the machine. 15. Remove the drive sheaves from both sides of the old engine and install them on the new engine in the same orientation. 5-23 3640G/LP 330585 (5- -00) Home Find... Go To..

  • Page 182: To Install Engine

    4. Install the two rear engine mount bolts. Access this hardware by going to the rear of the machine and locating the two hardware dimples in front of the brush arm mount bracket and above the transaxle. 5-24 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 183 See TO REPLACE MAIN BRUSH DRIVE BELT instructions in the SWEEPING section. 8. Reinstall the right side drive wheel assembly. See TO INSTALL REAR TIRE instructions in the CHASSIS section. 5-25 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 184 CHASSIS section. 11. Reconnect the choke cable at the carburetor. 12. LP MACHINE: Install the LP tank mounting brackets and LP tank. Reconnect the LP hose to the tank. Open the valve. 5-26 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 185 The capacity of this engine is 0.65 liters (0.17 U. S. gallon). Use an automobile grade SAE #20, #30, or 10W--30 16. Start the engine and check for proper operation. 5-27 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 186 ENGINE- -GAS/LP 5-28 3640G/LP 330585 (5- -00) Home Find... Go To..
  • Page 187 We Need Your Help... As part of Tennant’s Zero Defects Program, we want to know about errors you have found or suggestions you may have regarding our machine manuals. If you find an error or have a suggestion, please complete this postage-paid form and mail it to us.
  • Page 188 Home Find... Go To..
  • Page 189 We Need Your Help... As part of Tennant’s Zero Defects Program, we want to know about errors you have found or suggestions you may have regarding our machine manuals. If you find an error or have a suggestion, please complete this postage-paid form and mail it to us.
  • Page 190 Home Find... Go To..

Table of Contents