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7400 (Diesel) Rider Scrubber Operator Manual The Safe Scrubbing Alternative ES Extended Scrub System MM426 North America / International Rev. 14 (3-2007) *MM426* www.tennantco.com Home Find... Go To..
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Engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. FaST- -PAK is a US registered and unregistered trademark of Tennant Company. Specifications and parts are subject to change without notice.
- - Use cardboard to locate leaking designed for use in those areas. hydraulic fluid under pressure. - - In areas with possible falling objects - - Use Tennant supplied or approved unless equipped with overhead guard. replacement parts. 7400D MM426 (3- -02) Home Find...
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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.
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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.
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SAFETY PRECAUTIONS FAN AND BELT LABEL - - LOCATED ON THE STRONG VACUUM LABEL - - LOCATED ON ENGINE COMPARTMENT LINTEL. THE VACUUM FAN HOUSING. 10783 FLAMMABLE MATERIALS LABEL - - LOCATED NEXT TO THE SOLUTION TANK COVERS AND ON THE DETERGENT TANK. 7400D MM426 (6- -00) Home Find...
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.
OPERATION MACHINE COMPONENTS 10783 A. Instrument panel B. Steering wheel C. Operator seat D. Engine cover E. Machine front cover F. Solution tank covers G. Solution tanks H. Recovery tank covers Recovery Tank J. Rear squeegee K. Side Squeegee L. Scrub brush access door M.
OPERATION SYMBOL DEFINITIONS These symbols identify controls, displays, and features on the machine: Charging system Steering tilt Engine oil pressure Horn High engine temperature Ignition switch Maintenance mode Circuit breaker 1 Recovery tank full Circuit breaker 2 Fuel Circuit breaker 3 Diagnostics Circuit breaker 4 Hourmeter...
OPERATION CONTROLS AND INSTRUMENTS 10655 A. Directional pedal B. Brake pedal C. Parking brake pedal D. Charging system light E. Engine oil pressure light F. High engine temperature light G. Maintenance mode light H. Recovery tank full light Fuel level low light J.
OPERATION OPERATION OF CONTROLS DIRECTIONAL PEDAL The directional pedal controls direction of travel and the propelling speed of the machine. You change the speed of the machine with the pressure of your foot; the harder you press the faster the machine travels. Forward: Press the top of the directional pedal with the toe of your foot.
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 rear wheel brakes.
OPERATION ENGINE OIL PRESSURE LIGHT The engine oil pressure light comes on when the engine oil pressure falls below 40 kPa (5 psi). Stop operating the machine. Locate the problem and have it corrected. 10643 HIGH ENGINE TEMPERATURE LIGHT The high engine temperature light comes on when the temperature of the engine coolant is more than 107_ C (225_ F).
OPERATION RECOVERY TANK FULL LIGHT The recovery tank full light starts blinking when the recovery tank is full. The light will blink for one minute and then stay on. Then the scrubbing operations will shut off. FUEL LEVEL LIGHT 10886 The fuel level light comes on when the fuel tank is almost empty.
OPERATION FUEL LEVEL GAUGE The fuel level gauge indicates how much fuel is in the fuel tank with a segmented LED light. When the tank is full, all ten of the LED segments are lit. As the fuel tank empties, the LED segments shut off.
OPERATION ES SWITCH (OPTION) The ES switch turns on and off the extended scrub system. When the machine is started, the ES switch will default to the last setting used. On: Press the ES switch. The indicator light above the switch will come on. Off: Press the ES switch.
OPERATION SCRUB SWITCH The scrub switch controls the scrubbing operations. The scrub switch also sets the scrub brush pressure. The scrubbing operations include the following. The scrub head lowers and the brushes turn on. The rear squeegee will lower and the vacuum fan will start.
OPERATION ENGINE SPEED SWITCH The engine speed switch controls the engine governed speed. The two indicator lights above the switch show the engine speed; idle or fast. Idle: The engine will automatically start in idle speed. To return the engine to idle from the (Fast) engine speed, press the engine speed switch until the left indicator light comes on.
OPERATION HORN BUTTON The horn button operates the horn. Sound: Press the button. IGNITION SWITCH The ignition switch starts and stops the engine with a key. The operating lights will automatically turn on when the machine is started. FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral.
OPERATION CIRCUIT BREAKERS The circuit breakers are resetable electrical circuit protection devices. Their design stops the flow of current in the event of a circuit overload. Once a circuit breaker is tripped, it must be reset manually. Press the reset button after the breaker has cooled down.
OPERATION SOLUTION FLOW SWITCH (WITHOUT FaST) The solution flow switch controls the flow of solution to the floor. The solution flow switch is only on machines without the FaST system. Start (1): Place the solution flow switch in the middle position. Use this flow rate for smooth floors and light dirt.
OPERATION SOLUTION TANK DRAIN HOSE The solution tank drain hose is used to drain the solution tank. Drain the solution tank by removing the drain hose cap from the tank access cap. Pull out the solution tank hose and remove the drain hose end cap.
OPERATION OPERATOR SEAT The operator seat is a fixed back style with a forward-backward position adjustment. Adjust: Pull the lever, slide the seat backward or forward to the desired position and release the lever. Lift: Pull up on the seat mounting plate until the seat mount locks up.
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. Water and detergent, from the solution tank, flow to the floor through a solution valve to the scrub brushes.
Conventional cleaning detergents/ restorers may cause failure to the FaST solution system. NOTE: Storage or transporting machines equipped with FaST in freezing temperatures requires special procedures. Check with a TENNANT representative for advice. 7400D MM426 (3- -07) Home Find... Go To..
OPERATION PRE-OPERATION CHECKLIST - Check under the machine for leaks (fuel, oil, coolant, scrubbing solution). - Check the engine air filter indicator. - Check the engine oil level. - Check the fuel level. - Check the brakes and steering for proper operation.
OPERATION INSTALLING FaST PAK AGENT NOTE: Machine must be equipped with FaST before the FaST PAK agent can be installed. 1. Remove the perforated knock--outs from the FaST PAK Floor Cleaning Concentrate carton. Do not remove the bag from the carton.
OPERATION Connect the supply hose to the FaST PAK bag. NOTE: If any dried concentrate is visible on the supply hose connector or the on the FaST PAK connector, soak and clean with warm water. 5. Place the FaST PAK carton in the carton holder under the seat mounting plate on the machine.
OPERATION STARTING THE MACHINE 1. You must be in the operator’s seat with the directional pedal in neutral, and your foot on the brake pedal, or with the parking brake set. FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral.
OPERATION 5. Release the machine parking brake. 6. Select the (Fast) engine speed with the engine speed switch. 7. Drive the machine to the solution tank filling area. 10896 7400D MM426 (1- -96) Home Find... Go To..
OPERATION SCRUBBING AND BRUSH INFORMATION Pick up oversized debris before scrubbing. Pick up pieces of wire, string, twine, etc., which could become wrapped around the scrubbing brushes. Plan the scrubbing in advance. Try to arrange long runs with minimum stopping and starting. Do an entire floor or section at one time.
OPERATION Polypropylene side scrub brush -- A general-purpose brush with stiff bristles for aggressive action on slightly compacted soilage. Works well on concrete, wood, and tile surfaces. Nylon side scrub brush -- Recommended for scrubbing coated floors. Cleans without scuffing. Super abrasive bristle side scrub brush -- Nylon fiber impregnated with abrasive grit to remove stains and soilage.
For specific recommendations, contact your Tennant representative. WARNING: Flammable materials can cause an explosion or fire. Do not use flammable materials in tank(s).
OPERATION ES mode with auto-fill (option): Connect the hose from the water source to the auto-fill connection on the machine. Turn the ignition key to the on position and turn on the water source. The auto-fill will automatically fill the tanks to the proper level for ES operation and automatically shut-off.
OPERATION 4. CONVENTIONAL SCRUBBING: Adjust the solution flow to the floor as needed. See the SOLUTION SWITCH (WITHOUT FaST) section of the manual. 5. Press the scrub switch to start the scrubbing operations. As long as the machine is not in reverse, the scrub head will lower and the scrub brushes will start.
OPERATION NOTE: If you do not want to use the ES system, press the ES switch so the indicator above the switch is off. 10898 Press and hold the detergent switch until both indicator lights are off. Turn off the detergent pump only if detergent has been added to the solution tank.
OPERATION DOUBLE SCRUBBING Double scrubbing is a method for removing heavy soil accumulations. This is done by making two passes over the area, to be cleaned, with the machine. Double scrubbing can be performed using the FaST SCRUBBING SYSTEM or CONVENTIONAL SCRUBBING methods.
OPERATION DRAINING AND CLEANING THE TANKS When you are finished scrubbing or the recovery tank full light comes on, the recovery tank should be drained and cleaned. The solution tank then can be filled again for additional scrubbing. If you used the machine in ES mode, the solution tank should also be drained and cleaned when you are finished scrubbing.
OPERATION 5. Unscrew the drain hose cap from the access cap of the recovery tank drain. 6. Pull out and place the drain hoses next to the floor drain. Remove the drain end cap from the hose. Stand back, the solution rushes out of the drain hoses.
OPERATION 10. ES mode: Clean the ES filter. If the filter can’t be rinsed off through the right recovery tank fill opening, the filter can be removed from the recovery tank by disconnecting the ES pump wire and solution hose, and unscrewing the ES pump cap from the recovery tank.
OPERATION STOP THE MACHINE 1. Stop scrubbing and drive the machine forward until the vacuum fan shuts off. 2. Take your foot off the directional pedal. Step on the brake pedal. 3. Select the (Idle) position with the engine speed switch. 10900 4.
OPERATION 5. Turn the ignition switch key counter-clockwise 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. 7400D MM426 (6- -00) Home Find...
OPERATION POST-OPERATION CHECKLIST - Check the brush adjustment. See TO CHECKING AND ADJUSTING SCRUB BRUSH PATTERN in MAINTENANCE. - Check for wire, string, or twine wrapped around the scrub brushes. - Check the squeegees for wear or damage. - Drain and clean the recovery tank. - ES mode: Drain and clean the solution tank and clean the solution outlet filter.
OPERATION OPTIONS VACUUM WAND The vacuum wand uses the machine’s vacuum system. The vacuum hose and wand allows pick-up of spills that are out of reach of the machine. WARNING: Flammable materials or reactive metals can cause an explosion or fire. Do not pickup. 1.
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OPERATION 4. Remove the squeegee suction hose from the rear squeegee and connect the vacuum hose. 5. Put together the wand and the wand hose. 6. Start the engine. 7. Select the (Fast) engine speed with the engine speed switch. 10900 8.
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OPERATION 9. Vacuum the floor. 06599 10. Shut the engine off. 11. Remove the vacuum hose from the squeegee suction hose and connect the squeegee suction hose to the rear squeegee. 12. Put the vacuum wand and hose in the mounting clips.
Solution flow switch turned off. Turn solution flow switch on. Poor scrubbing performance. Debris caught on scrub brushes. Remove debris. Improper detergent or brushes Check with Tennant representative used. for advice. Worn scrub brushes. Replace scrub brushes. ES system does not fill solution Clogged solution pump or lines.
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To prime, operate the FaST solu- tion system for 5 to 10 minutes. Clogged flow control orifice/screen Remove and clean orifice/screen Faulty pump or air compressor Contact TENNANT representative Clogged filter screen Drain solution tank, remove and clean filter screen...
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OPERATION 7400D MM426 (3- -05) Home Find... Go To..
MAINTENANCE MAINTENANCE 09076 MAINTENANCE CHART NOTE: Check procedures indicted (H) after the first 50-hours of operation. No. of Lubricant/ Service Fluid Interval Description Procedure Points Daily Engine Check indicator Empty dust cap Check oil level Rear Squeegee Check for damage and wear Check deflection Side Squeegees Check for damage and wear...
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. . . Water and permanent-type ethylene glycol anti-freeze, --34_ C (--30_ F) . . . Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433--1) ..Distilled water NOTE: More frequent intervals may be required in extremely dusty conditions.
REAR WHEEL BEARINGS Inspect the rear wheel bearings for seal damage, and repack and adjust every 400 hours of operation. Use Lubriplate EMB grease (Tennant part number 01433--1). 7400D MM426 (6- -00) Home Find... Go To..
The front wheel support pivots the front wheel. The front wheel support bearings must be lubricated every 200 hours of operation. Use Lubriplate EMB grease (Tennant part no. 01433--1). SCRUB BRUSH IDLER Each scrub brush idler has one grease fitting. The scrub brush idlers must be lubricated every 100 hours of operation.
The quality and condition of the hydraulic fluid play a very important role in how well the machine operates. Tennant hydraulic fluid is specially selected to meet the needs of Tennant machines. Tennant hydraulic fluids provide a longer life for the hydraulic components. There are two fluids available for different temperature ranges: Tennant part no.
The lower temperature fluid is a thinner fluid for colder temperatures. If a locally-available hydraulic fluid is used, make sure the specifications match Tennant hydraulic fluid specifications. Using substitute fluids can cause premature failure of hydraulic components. ATTENTION! Hydraulic components depend on system hydraulic fluid for internal lubrication.
MAINTENANCE ENGINE COOLING SYSTEM Check the radiator coolant level every 100 hours of operation. Use a 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 every 200 hours of operation.
MAINTENANCE AIR FILTER INDICATOR The air filter indicator shows when to replace the air filter element. Check the indicator daily. The indicator’s red line will move as the air filter element fills with dirt. Do not replace the air filter element until the red line reaches 5 kPa (20 in H O) and the “SERVICE WHEN...
MAINTENANCE FUEL FILTER The fuel filter cartridge filters impurities from the fuel. The filter is located on the front side of the engine. Replace the fuel filter element every 400 hours of operation. FUEL LINES Check the fuel lines every 50 hours of operation. If the clamp band is loose, apply oil to the screw of the band and securely tighten the band.
MAINTENANCE 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 under the operator seat. After the first 50 hours of operation, and every 800 hours after that, clean and tighten the battery connections.
MAINTENANCE SCRUB BRUSHES Two cylindrical scrub brushes span the width of the scrub head, sweeping debris into the debris tray while scrubbing the floor. The scrub brushes should be checked daily for tangled wire or string, wear, and damage. The scrub brushes can be rotated front-to-rear, and end-for-end to increase brush life.The brushes should be replaced if large portions of the brush bristles are missing or if the remaining...
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MAINTENANCE 6. Open the brush door. 7. Disconnect the leveling rod from the machine frame by pulling back on the locking collar and pulling the rod end off the ball stud. 8. Remove the idler arm mounting bolt. Thread the mounting bolt into the idler arm removal hole if you are having trouble removing the idler arm.
MAINTENANCE 12. Insert the idler plugs into the brushes. 13. Line up the brush wrap guide pins with idler plate. Line up the idler mounting arm with the mounting pins. 14. Secure the idler mounting arm to the scrub head with the mounting bolt. 15.
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MAINTENANCE If one or both of the brush patterns are tapered, the scrub head will have to be adjusted to straighten the brush pattern. 10652 A. Loosen the three scrub head mounting bolts on the idler or drive side of the scrub head.
MAINTENANCE SOLUTION SYSTEM RECOVERY TANK The recovery tank stores recovered solution. The recovery tank should be drained and cleaned daily, or when the recovery tank full light comes ES option: The ES filter should be cleaned daily. The ES filter can be rinsed while in the recovery tank through the right tank fill opening, or by removing the ES pump from the recovery tank.
MAINTENANCE FaST SYSTEM FaST SUPPLY HOSE CONNECTOR The FaST supply hose connector is located on the side of the the FaST PAK holder. Soak the connector in warm water if detergent buildup is visible. When a FaST PAK carton is not installed, store the supply hose connector on the storing plug to prevent the hose from clogging.
MAINTENANCE FaST SPRAY TUBE The FaST spray tube is located on the front of the scrub brush housing. Debris from the spinning scrub brushes can collect on the spray tube. Rinse and clean the tube with a strong blast of warm water after every 50 hours of machine operation.
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MAINTENANCE 3. Look at the deflection over the full length of the squeegee blade. The correct amount of 5 mm 15 to deflection for the rear squeegee blade is (0.13 to 20 mm 15 to 20 mm (0.50 to 0.75 in). The front 0.25 in) (0.50 to slotted squeegee blade should contact the...
MAINTENANCE LEVELING THE REAR SQUEEGEE Leveling of the squeegee assures even contact over the length of the squeegee blade with the surface being scrubbed. Make sure this adjustment is done on an even, level floor. 1. Lower the squeegee and drive the machine forward.
MAINTENANCE SQUEEGEE BLADES REAR SQUEEGEE Check the squeegee blades for damage and wear daily. Rotate or replace either of the squeegee blades if the leading edge is torn or worn half-way through the thickness of the blade. The rear squeegee has two squeegee blades. Each blade has four wiping edges.
MAINTENANCE 4. Replace or rotate the squeegee blade to allow a new edge to face the front of the machine. 5. Place the squeegee blade over the pins of the squeegee frame. 6. Position the retaining band over the squeegee blade. Latch the retaining band clamp.
MAINTENANCE SKIRTS AND SEALS SCRUB HEAD SKIRTS A skirt is mounted on each side of the scrub head. Check the skirts for wear or damage every 100 hours of operation. COVER SEALS Check the solution and recovery tank cover seals for wear or damage every 100 hours of operation 7400D MM426 (6- -00) Home...
MAINTENANCE BRAKES AND TIRES SERVICE BRAKES The mechanical service brakes are located on the rear wheels. The brakes are operated by the foot brake pedal and connecting cables. Check the brake adjustment every 200 hours of operation. PARKING BRAKE The parking brake is set with the parking brake pedal that activates the service brakes.
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.
MAINTENANCE TRANSPORTING THE MACHINE 1. Position the rear of the machine at the loading edge of the truck or trailer. 2. If the loading surface is not horizontal or is higher than 380 mm (15 in) from the ground, use a winch to load machine. If the loading surface is horizontal AND is 380 mm (15 in) or less from the ground, the machine may be driven onto the truck or...
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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.
Before storing the machine for an extended period of time, the machine needs to be prepped to lessen the chance of rust, sludge, and other undesirable deposits from forming. Contact your Tennant service personnel. 7400D MM426 (3- -01) Home Find... Go To..
MAINTENANCE OPTIONS SIDE BRUSH The side brush has a disk scrub brush, a squeegee blade, and a skirt. Check the squeegee blade and brush daily for damage and wear. REPLACING THE SIDE SCRUB BRUSH 1. Raise the side brush. 2. Shut off the engine and set the parking brake.
MAINTENANCE REPLACING THE SQUEEGEE BLADE 1. Raise the side brush. 2. Shut off the engine and set the parking brake. FOR SAFETY: Before leaving or servicing machine; stop on level surface, set parking brake, turn off machine and remove key. 3.
SPECIFICATIONS SPECIFICATIONS GENERAL MACHINE DIMENSIONS/CAPACITIES Item Dimension/capacity Length 2460 mm (97 in) Width 1525 mm (60 in) Width with optional side brush 1600 mm (63 in) Height 1475 mm (58 in) Height with overhead guard 2045 mm (80.5 in) Main scrub brush diameter 280 mm (11 in) Main scrub brush length 1145 mm (45 in)
HYDRAULIC SYSTEM System Capacity Fluid Type Hydraulic reservoir 38 L (10 gal) TENNANT part no. 65869 -- above 7_ C (45_ F) TENNANT part no. 65870 -- below 7_ C (45_ F) Hydraulic total 74 L (19.5 gal) BRAKING SYSTEM Type...
SPECIFICATIONS 2460 mm (97 in) 1686 mm (66.4 in) 1327 mm (52.25 in) 1610 mm (63.4 in) 1525 mm (60 in) 1483 mm (58.4 in) 2045 mm (80.5 in) 1475 mm (58 in) 1260 mm (49.6 in) 10919 MACHINE DIMENSIONS 7400D MM426 (6- -00) Home Find...
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