Tennant 6400 Operator's Manual
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6400
(Diesel)
Sweeper
Operator Manual
North America / International
MM431
Rev. 12 (04-2009)
*MM431*
www.tennantco.com

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Summary of Contents for Tennant 6400

  • Page 1 6400 (Diesel) Sweeper Operator Manual North America / International MM431 Rev. 12 (04-2009) *MM431* www.tennantco.com...
  • Page 2 Engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Thermo- -Sentry, Instant Access, and Perma- -Filter are US registered and unregistered trademarks of Tennant Company. Specifications and parts are subject to change without notice.
  • Page 3: Table Of Contents

    CONTENTS CONTENTS Page Page CONTENTS ....... SWEEPING AND BRUSH INFORMATION 27 SAFETY PRECAUTIONS .
  • Page 4 CONTENTS Page SKIRTS AND SEALS ....HOPPER LIP SKIRT ....HOPPER SIDE SKIRT .
  • Page 5: Safety Precautions

    - - Use cardboard to locate leaking hydraulic fluid under pressure. 2. Before starting machine: - - Use Tennant supplied or approved - - Check for fuel leaks. replacement parts. - - Keep sparks and open flame away from refueling area.
  • Page 6 SAFETY PRECAUTIONS 7. When loading/unloading machine onto/off truck or trailer: - - Turn off machine. - - Use truck or trailer that will support the weight of the machine. - - Use winch. Do not drive the machine onto/off the truck or trailer unless the load height is 380 mm (15 in) or less from the ground.
  • Page 7 SAFETY PRECAUTIONS The following safety labels are mounted on the machine in the locations indicated. If these or any labels become damaged or illegible, install a new label in its place. EMISSIONS LABEL - - LOCATED ON THE SIDE FOR SAFETY LABEL - - LOCATED ON THE OF THE OPERATOR COMPARTMENT.
  • Page 8: Operation

    Tennant representative. - Order parts and supplies directly from your authorized Tennant representative. Use the parts manual provided when ordering parts. - After the first 50 hours of operation, follow the recommended procedures stated in the MAINTENANCE CHART.
  • Page 9: Machine Components

    OPERATION MACHINE COMPONENTS 350159 A. Operator seat B. Steering wheel C. Instrument panel D. Hopper cover E. Side brush F. Hopper access door G. Brush door H. Seat support Fuel tank 6400D MM431 (8- -07)
  • Page 10: Symbol Definitions

    OPERATION SYMBOL DEFINITIONS These symbols identify controls, displays, and features on the machine: Filter shaker Thermo Sentry Vacuum fan on Glow plugs Vacuum fan off Clogged dust filter Fast engine speed Hopper door closed Idle engine speed Hydraulic filter clogged Hopper down Hourmeter Hopper up...
  • Page 11 OPERATION Side brush up and off Circuit breaker #3 Variable pressure Circuit breaker #4 Side brush pressure Circuit breaker #5 Circuit breaker #1 Diesel fuel only Circuit breaker #2 6400D MM431 (4- -09)
  • Page 12: Controls And Instruments

    OPERATION CONTROLS AND INSTRUMENTS 350013 A. Brake pedal B. Parking brake pedal C. Directional pedal D. Seat support release lever E. Hopper lever F. Hopper door lever G. Main brush lever H. Main brush down pressure knob Throttle lever J. Vacuum and filter shaker lever K.
  • Page 13: Operation Of Controls

    OPERATION OPERATION OF CONTROLS DIRECTIONAL PEDAL The directional pedal controls the direction of travel and the propelling speed of the machine. You change the speed of the machine with the pressure of your foot on the pedal; the harder you press, the faster the machine travels.
  • Page 14: Brake Pedal

    OPERATION BRAKE PEDAL The brake pedal stops the machine. Stop: Take your foot off the directional pedal and let it return to the Neutral position. Step on the brake pedal. PARKING BRAKE PEDAL The parking brake pedal sets and releases the front wheel brakes.
  • Page 15: Throttle Lever

    OPERATION THROTTLE LEVER The throttle lever controls the engine speed. Fast: Push the throttle lever all the way forward. Idle: Pull the throttle lever all the way back. NOTE: Only operate the throttle all the way open in the Fast engine speed position when sweeping.
  • Page 16: Main Brush Lever

    OPERATION MAIN BRUSH LEVER The main brush lever controls the position and rotation of the main brush. Main brush down and on: Pull the lever back and to the right into the Main brush down and on position against the main brush down pressure knob.
  • Page 17: Charging System Light

    OPERATION CHARGING SYSTEM LIGHT The charging system light comes on when the alternator is not operating within normal range; 13.5 to 14.5 V. If the light comes on, stop operating the machine. Locate the problem and have it corrected. ENGINE OIL PRESSURE LIGHT The engine oil pressure light comes on when the engine oil pressure falls below 40 kPa (5 psi).
  • Page 18: Hopper Temperature Light - - Thermo Sentry

    OPERATION HOPPER TEMPERATURE LIGHT - - THERMO SENTRY The hopper temperature light comes on when the Thermo Sentry senses that there is excessive heat in the hopper, possibly from a fire. The Thermo Sentry will also move the vacuum and filter shaker lever to the Vacuum fan off position.
  • Page 19: Clogged Filter Light (Option)

    OPERATION CLOGGED FILTER LIGHT (OPTION) The clogged filter light comes on when the hopper dust filter is clogged. To clean the filter, hold the vacuum and filter shaker lever in the Filter shaker position. If the clogged filter light remains lit, manually clean the hopper dust filter.
  • Page 20: Hydraulic Filter Bypass Light (Option)

    OPERATION HYDRAULIC FILTER BYPASS LIGHT (OPTION) The hydraulic filter bypass light comes on when the hydraulic filter is clogged. If this light comes on, have the hydraulic filter and hydraulic fluid changed as soon as possible. FUEL LEVEL GAUGE The fuel level gauge indicates how much fuel is in the fuel tank.
  • Page 21: Steering Wheel Tilt Handle

    OPERATION STEERING WHEEL TILT HANDLE The steering wheel tilt handle controls the angle of the steering wheel. Adjust: Pull out the tilt handle, move the steering wheel up or down, and release the tilt handle. IGNITION SWITCH The ignition switch starts and stops the engine with a key.
  • Page 22: Side Brush Lever

    OPERATION SIDE BRUSH LEVER The side brush lever controls the position and rotation of the side brush. Side brush down and on: Pull the lever back and to the left into the Side brush down and on position. The brush will automatically start rotating. Side brush up and off: Pull the lever back and to the right into the Side brush up and off position.
  • Page 23: Side Brush Down Pressure Knob

    OPERATION SIDE BRUSH DOWN PRESSURE KNOB The side brush down pressure knob changes the side brush contact with the sweeping surface. Increase: Turn the side brush down pressure knob counterclockwise. Decrease: Turn the side brush down pressure knob clockwise. FUSES Fuses are one-time protection devices designed to stop the flow of current in the event of a circuit overload.
  • Page 24: Operator Seat

    OPERATION OPERATOR SEAT The operator seat is a fixed back style with a forward-backward adjustment. Adjust: Pull the lever in, slide the seat backward or forward to the desired position, and release the lever. 350015 DELUXE SUSPENSION SEAT (OPTION) The deluxe suspension seat has three adjustments.
  • Page 25: Hopper Support Bar

    OPERATION HOPPER SUPPORT BAR The hopper support bar is located on the operator’s side of the hopper lift arms. The hopper support bar holds the hopper in the raised position to allow work under the hopper. DO NOT rely on the machine hydraulic system to keep the hopper raised.
  • Page 26: How The Machine Works

    OPERATION HOW THE MACHINE WORKS The steering wheel controls the direction of machine travel. The directional pedal controls the speed and forward/reverse direction. The brake pedal slows and stops the machine. The side brush sweeps debris into the path of the main sweeping brush.
  • Page 27: Starting The Machine

    OPERATION STARTING THE MACHINE 1. Sit in the operator’s seat and engage the brakes with the directional pedal in neutral. FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral. 2. Move the throttle lever back into the Idle engine speed position.
  • Page 28 OPERATION 5. Allow the engine and hydraulic system to warm up three to five minutes. WARNING: Engine emits toxic gases. Severe respiratory damage or asphyxiation can result. Provide adequate ventilation. Consult with your regulatory authorities for exposure limits. Keep engine properly tuned. 6.
  • Page 29: Sweeping And Brush Information

    OPERATION SWEEPING AND BRUSH INFORMATION Pick up oversized debris before sweeping. Flatten or remove bulky cartons from aisles before sweeping. Pick up pieces of wire, twine, string, etc., which could become entangled in the brush or brush plugs. NOTE: Debris can be placed in the hopper through the hopper access door on the front of the hopper.
  • Page 30: Sweeping

    OPERATION Polypropylene Side Brush -- A good general purpose brush for sweeping of light to medium debris in both indoor and outdoor applications. This brush is recommended when bristles may get wet. Nylon Side Brush -- A longer life, general purpose brush that is recommended for rough surfaces.
  • Page 31 OPERATION 3. Move the vacuum and filter shaker lever to the Vacuum fan on position. 4. Lower and start the main brush with the main brush lever. 5. Lower and start the side brush with the side brush lever. 6. Sweep as needed. 6400D MM431 (9- -96)
  • Page 32: Stop Sweeping

    OPERATION STOP SWEEPING 1. Raise and stop the side brush with the side brush lever. 2. Raise and stop the main brush with the main brush lever. 3. Shake the dust filter by holding the vacuum and filter shaker lever in the Filter shaker position for 30 seconds.
  • Page 33: Emptying The Hopper

    OPERATION EMPTYING THE HOPPER 1. Stop sweeping. 2. Pull and hold the hopper door lever back into the Hopper door close position until the hopper door is closed. Then release the hopper door lever. NOTE: If the machine is equipped with the hopper door closed light option, the light will come on when the hopper door is closed.
  • Page 34 OPERATION 7. Push the hopper door lever forward into the Hopper door open position to open the hopper door. NOTE: If the machine is equipped with the hopper door closed light option, the light will be off when the hopper door is open. 8.
  • Page 35: Stop The Machine

    OPERATION 12. Move the vacuum and filter shaker lever into the Vacuum fan on position. STOP THE MACHINE 1. Stop sweeping. 2. Take your foot off the directional pedal. Step on the brake pedal. 3. Move the throttle lever back into the Idle engine speed position.
  • Page 36 OPERATION 5. Turn the ignition switch key counterclockwise to stop the engine. Remove the switch key. FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off machine, and remove key. 6400D MM431 (9- -96)
  • Page 37: Post-Operation Checklist

    OPERATION POST-OPERATION CHECKLIST Check this list of items after you have finished sweeping: - Check the engine oil level. - Check the engine coolant level. - Check the windshield washer fluid level (when applicable). - Check the radiator and hydraulic cooler fins for debris.
  • Page 38: Engaging Hopper Support Bar

    OPERATION ENGAGING HOPPER SUPPORT BAR 1. Set the machine parking brake. FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral. 2. Start the engine. 3. Move the throttle lever all the way forward into the Fast engine speed position. 4.
  • Page 39 OPERATION 5. Lower and position the hopper support bar onto the support bar stop. WARNING: Raised hopper may fall. Engage hopper support bar. 6. Slowly lower the hopper so the hopper support bar rests on the support bar stop. WARNING: Lift arm pinch point. Stay clear of hopper lift arms.
  • Page 40: Disengaging Hopper Support Bar

    OPERATION DISENGAGING HOPPER SUPPORT BAR 1. Start the engine. FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral. 2. Move the throttle lever all the way forward into the Fast engine speed position. 3. Pull and hold the hopper lever back into the Hopper up position to raise the hopper slightly.
  • Page 41: Operation On Inclines

    OPERATION 5. Lower the hopper. 6. Move the throttle lever back into the Idle engine speed position. 7. Shut the engine off. OPERATION ON INCLINES Drive the machine slowly on inclines. Use the brake pedal to control machine speed when descending inclines.
  • Page 42: Options

    OPERATION OPTIONS VACUUM WAND The vacuum wand uses the machine’s vacuum system. The vacuum hose and wand allow pick-up of debris that is out of reach of the machine. 1. Stop the machine within reach of the area to be vacuumed. 2.
  • Page 43 OPERATION 8. Move the throttle lever all the way forward into the Fast position. Pull and hold the hopper door lever back into the Hopper door close position until the hopper door is closed. NOTE: If the machine is equipped with the hopper door closed light option, the light will come on when the hopper door is closed.
  • Page 44: Machine Troubleshooting

    Hopper dust filter clogged Shake and/or clean or replace dust filter Vacuum hose damaged Replace vacuum hose Vacuum fan failure Contact TENNANT service per- sonnel Thermo Sentry tripped Reset Thermo Sentry Hopper door partially or Open hopper door completely closed...
  • Page 45 OPERATION 6400D MM431 (9- -04)
  • Page 46: Maintenance

    MAINTENANCE MAINTENANCE 350158 MAINTENANCE CHART NOTE: Check procedures indicated (H) after the first 50 hours of operation. No. of Lubricant/ Service Interval Fluid Points Description Procedure Daily Engine Check oil level Empty air filter dust cap Check optional air filter indicator Brush compartment skirts Check for damage, wear and ad- justment...
  • Page 47 HYDO Tennant or approved hydraulic fluid . . . Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433--1) . . . Water and permanent-type ethylene glycol anti-freeze, --34_ C (--30_ F) NOTE: More frequent intervals may be required in extremely dusty conditions.
  • Page 48: Lubrication

    The rear wheel support bearings must be lubricated every 200 hours of operation. Use Lubriplate EMB grease (Tennant part no. 01433--1). STEERING CYLINDER The steering cylinder has one grease fitting on the rear wheel support end of the cylinder.
  • Page 49: Front Wheel Bearings

    HOPPER LIFT ARM PIVOTS The hopper lift arms have two grease fittings, one on each lift arm. Lubricate with Lubriplate EMB grease (Tennant part number 01433--1) after every 200 hours of machine operation. 6400D MM431 (9- -96)
  • Page 50: Hydraulics

    Replace the strainer after every 800 hours of operation. HYDRAULIC FLUID The quality and condition of the hydraulic fluid play a very important role in how well the machine operates. Tennant’s hydraulic fluid is specially selected to meet the needs of Tennant machines. 6400D MM431 (12- -96)
  • Page 51: Hydraulic Hoses

    MAINTENANCE Tennant’s hydraulic fluids provide a longer life for the hydraulic components. There are two fluids available for different temperature ranges: Tennant hydraulic fluid Part number Ambient temperature 65869 above 7_ C (45_ F) 65870 below 7_ C (45_ F)
  • Page 52: Engine

    MAINTENANCE ENGINE COOLING SYSTEM Check the radiator coolant level after every 100 hours of operation. Use clean water mixed with a permanent-type, ethylene glycol antifreeze to a --34_ C (--30_ F) rating. FOR SAFETY: When servicing machine, avoid contact with hot engine coolant. Check the radiator hoses and clamps after every 200 hours of operation.
  • Page 53: Air Filter

    MAINTENANCE AIR FILTER The engine air filter housing has a dust cap and a dry cartridge-type air filter element. They are located in front of the engine compartment under the lintel. Empty the dust cap daily. Install the dust cap on the air filter housing with the arrows pointing up.
  • Page 54: Fuel Filters

    MAINTENANCE FUEL FILTERS The fuel filter cartridge protects the engine from impurities in the fuel. This filter is located behind the radiator. Replace the fuel filter element after every 400 hours of operation. FUEL LINES Check the fuel lines after every 50 hours of operation.
  • Page 55: Priming The Fuel System

    MAINTENANCE PRIMING THE FUEL SYSTEM Priming the fuel system removes pockets of air in the fuel lines and fuel components. Air in the fuel system will cause rough engine operation. Prime the fuel system after running out of fuel, changing fuel filter elements, or repairing a fuel system component.
  • Page 56: Electrical

    MAINTENANCE ELECTRICAL BATTERY The battery for the machine is a low maintenance battery. Do not add water to the battery, or remove the battery vent plugs. The battery is located in the engine compartment. After the first 50 hours of operation, and after every 800 hours after that, clean and tighten the battery connections.
  • Page 57: Belts And Chains

    MAINTENANCE BELTS AND CHAINS ENGINE BELT The engine belt is driven by the engine crankshaft pulley and drives the engine water pump and alternator pulleys. Proper belt tension is obtained when the belt deflects 7 to 9 mm (0.28 to 0.35 in) from a force of 10 kg (22 lb) applied at the mid-point of the longest span.
  • Page 58: Debris Hopper

    MAINTENANCE DEBRIS HOPPER HOPPER DUST FILTER The dust filter filters the air pulled up from the hopper. The dust filter is equipped with a shaker to remove the accumulated dust particles. The dust filter shaker is operated by the vacuum and filter shaker lever.
  • Page 59 MAINTENANCE REMOVING HOPPER DUST FILTER 1. Stop the engine and set the machine parking brake. FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off machine, and remove key. 2. Unlatch and open the hopper cover. Support the hopper with the hopper cover prop rod.
  • Page 60: Brushes

    MAINTENANCE BRUSHES MAIN BRUSH The main brush is cylindrical and spans the width of the machine, sweeping debris into the hopper. Check the brush daily for wear or damage. Remove any string or wire tangled on the main brush, main brush drive hub, or main brush idler hub.
  • Page 61: Checking And Adjusting Main Brush Pattern

    MAINTENANCE 9. Secure the idler arm on the pins. Hand tighten the mounting T--bolt. 10. Close the main brush access door. CHECKING AND ADJUSTING MAIN BRUSH PATTERN 1. Apply chalk, or some other material that will not blow away easily, to a smooth, level floor.
  • Page 62 MAINTENANCE 7. To increase the width of the main brush pattern, move the main brush down pressure knob forward, away from the operator. To decrease the width of the main brush pattern, move the main brush down pressure knob backward, towards the operator.
  • Page 63: Side Brush

    MAINTENANCE SIDE BRUSH The side brush sweeps debris along edges into the path of the main brush. Check the brush daily for wear or damage. Remove any string or wire found tangled on the side brush or side brush drive hub. Check the side brush pattern daily.
  • Page 64: Side Brush Guard

    MAINTENANCE SIDE BRUSH GUARD Rotate the side brush guard 90_ after every 200 hours of operation, or sooner if worn. Replace the brush guard after using all four sides. 08049 SIDE BRUSH PIVOT The side brush pivot should be checked for excessive movement after every 200 hours of operation.
  • Page 65: Skirts And Seals

    MAINTENANCE SKIRTS AND SEALS HOPPER LIP SKIRT The hopper lip skirt is located on the bottom rear of the hopper. The skirt floats over debris and helps deflect that debris into the hopper. Check the hopper lip skirt for wear or damage daily.
  • Page 66: Rear Skirts

    MAINTENANCE REAR SKIRTS The two rear skirts are located on the bottom rear of the main brush compartment. The vertical skirt should clear the floor up to 5 mm (0.25 in). The recirculation skirt requires no adjustment. Check the skirts for wear or damage and adjustment daily.
  • Page 67: Hopper Access Door Seal

    MAINTENANCE HOPPER ACCESS DOOR SEAL The hopper access door seal is located on the hopper and seals the front of the debris hopper. Check the seal for wear or damage after every 100 hours of operation. HOPPER DOOR SEALS The hopper door seals are located on the hopper door.
  • Page 68: Brakes And Tires

    MAINTENANCE BRAKES AND TIRES BRAKES The mechanical brakes are located on the front wheels. The brakes are operated by the foot brake pedal and connecting rods. Check the brake adjustment after every 200 hours of operation. TIRES The standard front machine tires are solid. The standard rear machine tire is pneumatic.
  • Page 69: Pushing, Towing, And Transporting The Machine

    MAINTENANCE PUSHING, TOWING, AND TRANSPORTING THE MACHINE PUSHING OR TOWING THE MACHINE If the machine becomes disabled, it can be pushed from the front or rear, but towed only from the rear. The propelling pump has a bypass valve to prevent damage to the hydraulic system when the machine is being pushed or towed.
  • Page 70: Transporting The Machine

    MAINTENANCE TRANSPORTING THE MACHINE 1. Position the rear of the machine at the loading edge of the truck or trailer. FOR SAFETY: Use truck or trailer that will support the weight of the machine. NOTE: Empty the hopper before transporting the machine.
  • Page 71 MAINTENANCE 5. 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 turn the steering wheel to center the machine. 6. Set the parking brake and block the machine tires.
  • Page 72: Machine Jacking

    MAINTENANCE MACHINE JACKING Empty the hopper before jacking the machine. The machine can be raised for service at the designated locations. Use a hoist or jack that will support the weight of the machine. Always stop the machine on a flat, level surface and block the tires before jacking up the machine.
  • Page 73: Specifications

    SPECIFICATIONS SPECIFICATIONS GENERAL MACHINE DIMENSIONS/CAPACITIES Item Dimension/capacity Length 2085 mm (82 in) Length with side brush 2260 mm (89 in) Width 1230 mm (48.4 in) Width with side brush 1395 mm (55 in) Height 1435 mm (56.5 in) Height with overhead guard 2085 mm (82 in) Track...
  • Page 74: Power Type

    HYDRAULIC SYSTEM System Capacity Fluid Type Hydraulic reservoir 19.3 L (5.1 gal) TENNANT part no. 65869 -- above 7_ C (45_ F) TENNANT part no. 65870 -- below 7_ C (45_ F) Hydraulic total 20.8 L (5.5 gal) BRAKING SYSTEM Type...
  • Page 75: Machine Dimensions

    SPECIFICATIONS 2085 mm (82 in) 1395 mm 1230 mm (55 in) (48.4 in) 2260 mm (89 in) TOP VIEW 2085 mm (82 in) 1435 mm (56.5 in) 1135 mm 1135 mm (44.7 in) (44.7 in) SIDE VIEW FRONT VIEW 350158--- 350165 MACHINE DIMENSIONS 6400D MM431 (6- -00)
  • Page 76: Index

    INDEX INDEX Buttons, Horn, 19 Bypass valve, 67 Air filter, 51 Cleaning, 51–53 Dust cap, 51 Element, 51 Capacities, 71 Air filter indicator, 50 Chains, 55 Aisle turn, 71 Static drag, 55 Charging system light, 15 Circuit breakers, 21 Battery, 54 Clogged filter light, 17 Charging system, Light, 15 Control panel...
  • Page 77 INDEX Steering wheel, 18 Valve clearance, 53 Steering wheel tilt handle, 19 Engine belt, 55 Symbols, 8–10 Engine oil pressure light, 15 Throttle lever, 13 Vacuum and filter shaker lever, 14 Engine water temperature light, 15 Cooling system, 50 Front wheel, Bearings, 47 Debris hopper, 56–58 Front wheel bearings, 47 Deluxe suspension seat, 22...
  • Page 78 INDEX Hopper access door seal, 65 Hopper door closed light, 17 Knobs Hopper door lever, 13 Main brush down pressure, 14 Side brush down pressure, 21 Hopper door seals, 65 Hopper lever, 13 Hopper lift arm pivots, 47 Levers Hopper lip skirt, 63 Hopper, 13 Hopper seals, 64 Hopper door, 13...
  • Page 79 INDEX Maintenance chart, 44–46 Rear wheel support, 46 Bearings, 46 Motors, Propelling, 49 Grease fitting, 46 Operating lights switch, 20 Safety Operating/hazard lights switch, 20 Disengaging hopper support bar, 38–40 Engaging hopper support bar, 36–38 Operation, 6 Hopper support bar, 23 Operation on inclines, 39 Labels, 5 Precautions, 3–5...
  • Page 80 INDEX Steering, 72 Tires, 72 Vacuum and filter shaker lever, 14 Starting the machine, 25–27 Vacuum fan Static drag chain, 55 Belt, 55 Steering, 24, 35 Seal, 65 Specifications, 72 Vacuum fan belt, 55 Steering cylinder, 46 Vacuum fan seal, 65 Grease fitting, 46 Vacuum Wand, 40 Steering wheel, 18...

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