Nilfisk-Advance Convertamatic 260B Service Manual
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Nilfisk-Advance Convertamatic 260B Service Manual

Nilfisk-Advance Convertamatic 260B Service Manual

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Convertamatic
Hydro-Retriever
SERVICE MANUAL
Advance MODELS 56372450(260B), 56395700(32B)
56395710(32BD), 56395720(38BD)
56372460(260BHD), 56395715(320BHD), 56395725(380BHD)
™
260B/32B/32BD/38BD
™
260BHD/320BHD/380BHD
8/93 revised 12/00 Form Number 56043021

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  • Page 1 ™ Convertamatic 260B/32B/32BD/38BD ™ Hydro-Retriever 260BHD/320BHD/380BHD SERVICE MANUAL Advance MODELS 56372450(260B), 56395700(32B) 56395710(32BD), 56395720(38BD) 56372460(260BHD), 56395715(320BHD), 56395725(380BHD) 8/93 revised 12/00 Form Number 56043021...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS _________________________________________________________________________________________________________________________________________________________________________________________________________________________ Batteries ......................53 Brush Drive Belt Adjustment - 32, 38, 320, 380 ..........16 Brush Drive Belt Adjustment - 260 ..............14 Brush Drive Motor - Carbon Brush Inspection - 260 ........17 Brush Drive Motor - Carbon Brush inspection - 32, 38, 320, 380 ....19 Brush Drive Motor Replacement - 32, 38, 320, 380........22 Brush Drive Motor Replacement - 260............20 Brush Drive System Maintenance..............14...
  • Page 3 TABLE OF CONTENTS ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Solution Cable Replacement - 32, 38, 320, 380 ..........12 Solution Cable Replacement - 260 ..............10 Solution System Maintenance .................6 Solution System Troubleshooting ..............13 Solution Valve Replacement - 32, 38, 320, 380 ..........8 Solution Valve Replacement - 260 ..............6 Specifications &...

  • Page 4: Safety

    SAFETY ________________________________________________________________________________________________________________________________________________________________________________ SYMBOLS Advance uses the symbols below to signal potentially dangerous conditions. Always read this information carefully and take the necessary steps to protect personnel and property. DANGER! Is used to warn of immediate hazards that will cause severe personal injury or death. WARNING! Is used to call attention to a situation that could cause severe personal injury.
  • Page 5 SAFETY ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ GENERAL SAFETY INSTRUCTIONS (continued...) CAUTION! Before performing any service function, carefully read all instructions pertaining to that service function. Take precautions to prevent hair, jewelry, or loose clothing from becoming caught in moving parts. Keep the Battery Compartment OPEN while charging the battery. Charging produces highly explosive hydro- gen gas.
  • Page 6 SPECIFICATIONS ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SPECIFICATIONS - 260 Dimensions English (Metric) Scrub Brush Diameter 13 inches (33 cm) Scrub Brush Path 25 inches (63.5 cm) Scrub Brush Pressure 120 lbs (55 kg) - float position 185 lbs (84 kg) - first notch 215 lbs (98 kg) - second notch Scrub Brush Speed 150 to 180 rpm (150 to 180 rpm) Machine Length...
  • Page 7 SPECIFICATIONS ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SPECIFICATIONS - 32, 38, 320, 380 Dimensions English (Metric) Scrub Brush Diameter 17 inches (43 cm) - 32 &320 20 inches (50 cm) - 38 & 380 Scrub Brush Pressure 150 to 225 lbs (68 to 102 kg) - 32 & 320 150 to 250 lbs (68 to 113 kg) - 38 &...

  • Page 8: Maintenance Schedule

    MAINTENANCE ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ MAINTENANCE SCHEDULE MAINTENANCE ITEM DAILY WEEKLY MONTHLY YEARLY Clean Tanks • Clean Vacuum Shut-Off Float • Clean Squeegee • Charge Batteries • Check Battery Water Level • * Lubrication / Grease • ** Lubrication / Oil • Service Vacuum Motor •...

  • Page 9: Solution Valve Replacement - 260

    SOLUTION SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ MAINTENANCE The solution system should be flushed every day to prevent a build-up of soap residue in the solution valve. To flush the solution system . . . Park the machine near a floor drain and open the solution valve. When the tank is empty, close the solution valve and put about 2 inches (5 cm) of clean, warm water in the solution tank.

  • Page 10: Solution System Troubleshooting

    SOLUTION SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SOLUTION VALVE REPLACEMENT - 260 (continued...) FIGURE 1 Solution Filter Front 56043021 - 260, 32, 38, 320, 380...

  • Page 11: Solution Valve Replacement - 32, 38, 320, 380

    SOLUTION SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SOLUTION VALVE REPLACEMENT - 32, 38, 320, 380 Move the machine to a floor drain and drain the solution tank by opening the solution valve. Remove the right side skirt and the right side brush. See Figure 2. Disconnect the (2) “F” solution hoses. Remove the (2) “G”...
  • Page 12 SOLUTION SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SOLUTION VALVE REPLACEMENT - 32, 38, 320, 380 (continued...) FIGURE 2 Front 56043021 - 260, 32, 38, 320, 380...

  • Page 13: Solution Cable Replacement - 260

    SOLUTION SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SOLUTION CABLE REPLACEMENT - 260 Drain the solution and recovery tanks. Tip the solution tank forward and remove the recovery tank from the machine. Remove the vacuum motor hose for easier access. See Figure 3. Disconnect solution cable “J” from the solution valve arm. Remove the solution cable from the chassis mount (take note of its location in the mount).
  • Page 14 SOLUTION SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SOLUTION CABLE REPLACEMENT - 260 (continued...) FIGURE 3 Solution Lever Front Handle Mount Solution Chassis Mount Valve Arm 56043021 - 260, 32, 38, 320, 380...

  • Page 15: Solution Cable Replacement - 32, 38, 320, 380

    SOLUTION SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SOLUTION CABLE REPLACEMENT - 32, 38, 320, 380 Drain the solution and recovery tanks. Remove the right side skirt and right side brush. Lower the brush drive. See Figure 4. Disconnect the (2) “K” solution hoses. Front FIGURE 4 Chassis Mounts...
  • Page 16 SOLUTION SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SOLUTION CABLE REPLACEMENT - 32, 38, 320, 380 (continued...) Remove the solution cable from the chassis mount (take note of its location in the mount). Tip the solution and recovery tanks to the sides of the machine. Remove the access panel from the front side of the control panel.

  • Page 17: Brush Drive Belt Adjustment - 260

    BRUSH DRIVE SYSTEM _______________________________________________________________________________________ MAINTENANCE Once a month . . . Lubricate the (2) pressure arm bearings. Every 6 months . . . Check the belt tension. There should be about 3/32 inch (2 mm) of belt deflection when 3-1/4 pounds of pressure is applied between the pulleys.
  • Page 18 BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE BELT ADJUSTMENT - 260 (continued...) FIGURE 1 56043021 - 260, 32, 38, 320, 380 - 15...

  • Page 19: Brush Drive Belt Adjustment - 32, 38, 320, 380

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE BELT ADJUSTMENT - 32, 38, 320, 380 Drain the solution and recovery tanks and tip FIGURE 2 them to the sides of the machine. Open the front access door. See Figure 2. Loosen the (2) “C” bolts. Remove the belt guard.

  • Page 20: Brush Drive Motor - Carbon Brush Inspection - 260

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE MOTOR - CARBON BRUSH INSPECTION - 260 Drain and remove the solution and recovery tanks and disconnect the batteries. See Figure 3. Remove access panel “E” from under the solution tank. FIGURE 3 56043021 - 260, 32, 38, 320, 380 - 17...
  • Page 21 BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE MOTOR - CARBON BRUSH INSPECTION - 260 (continued...) See Figure 4. Remove the “F” brush covers from the brush drive motor. Remove one of the brushes from its holder. Measure the length of the brush. If it is worn to a length of 3/8 inch (10 mm) or less, remove the brush motor (see the BRUSH DRIVE MOTOR REPLACEMENT section of this chapter) and replace all of the brushes.

  • Page 22: Brush Drive Motor - Carbon Brush Inspection - 32, 38, 320, 380

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE MOTOR - CARBON BRUSH INSPECTION - 32, 38, 320, 380 Drain the solution and recovery tanks and tip them to the sides of the machine. Disconnect the batteries. FIGURE 5 See Figure 5. Remove belt guard “G”. Remove large equalizer spring “H”.

  • Page 23: Brush Drive Motor Replacement - 260

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE MOTOR REPLACEMENT - 260 Drain and remove the solution and recovery tanks and disconnect the batteries. See Figure 3. Remove access panel “E” from under the solution tank. FIGURE 3 Disconnect the brush drive motor wires (take note of their location for reassembly). See Figure 6.
  • Page 24 BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE MOTOR REPLACEMENT - 260 (continued...) FIGURE 6 Remove the (2) “L” bolts. Turn the (2) large “M” bolts to loosen the belt tension and remove the belt. Remove the (4) “N” bolts and nuts and remove the brush drive motor. Reassemble in reverse order and test for proper operation.

  • Page 25: Brush Drive Motor Replacement - 32, 38, 320, 380

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE MOTOR REPLACEMENT - 32, 38, 320, 380 Drain the solution and recovery tanks and tip them to the sides of the machine. Disconnect the batteries and open the front access door. See Figure 7. Remove panel “O”. Disconnect the brush drive motor wires (take note of their location for reassembly).
  • Page 26 BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BRUSH DRIVE MOTOR REPLACEMENT - 32, 38, 320, 380 (continued...) See Figure 8. Remove the (2) “P” bolts and FIGURE 8 remove the belt guard. Remove large equalizer spring “Q”. Remove bracket “R”. Turn the (2) large “S” bolts to loosen the belt tension and remove the belt.

  • Page 27: Pressure Arm Bearing Replacement - 260

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ PRESSURE ARM BEARING REPLACEMENT - 260 Drain the solution and recovery tanks. Remove all of the battery cables and remove the batteries from the machine. Remove the skirts and brushes and tip the machine up onto its front end (to prevent injury or damage, use two people when tipping the machine up).
  • Page 28 BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ PRESSURE ARM BEARING REPLACEMENT - 260 (continued...) FIGURE 9 56043021 - 260, 32, 38, 320, 380 - 25...

  • Page 29: Pressure Arm Bearing Replacement - 32, 38, 320, 380

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ PRESSURE ARM BEARING REPLACEMENT - 32, 38, 320, 380 Drain the solution and recovery tanks and tip them to the sides of the machine. Remove all of the battery cables and remove the batteries from the machine. Tip the tanks back into position and tip the machine over onto its side (to prevent injury or damage, use two people when tipping the machine over).
  • Page 30 BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ PRESSURE ARM BEARING REPLACEMENT - 32, 38, 320, 380 (continued...) FIGURE 10 56043021 - 260, 32, 38, 320, 380 - 27...

  • Page 31: Propelling Linkage Adjustment - 260

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ PROPELLING LINKAGE ADJUSTMENT - 260 Put the brushes or pad holders on the machine. Make sure that they are the proper size and type for the machine. If pad holders are being used, install proper size pads before installing the pad holders on the machine.

  • Page 32: Propelling Linkage Adjustment - 32, 38, 320, 380

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ PROPELLING LINKAGE ADJUSTMENT - 32, 38, 320, 380 Put the brushes or pad holders on the machine. Make sure that they are the proper size and type for the machine. If pad holders are being used, install proper size pads before installing the pad holders on the machine.
  • Page 33 BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ PROPELLING LINKAGE ADJUSTMENT - 32, 38, 320, 380 (continued...) See Figure 13. Loosen the (2) “KK” lock nuts. FIGURE 13 Turn the left adjustment shaft “LL” until the control handle lock “MM” will drop easily into the notch “NN” without moving the left handle.

  • Page 34: Brush Drive System Troubleshooting

    BRUSH DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ TROUBLESHOOTING ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Problem: Brush Motor Will Not Run Tripped brush motor circuit breaker. Defective brush motor solenoid. Defective brush motor switch (on top of control handle/260 only). Defective brush motor. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Problem: Squealing Noise When Brushes Are Lowered Brush drive belt needs adjustment.
  • Page 35 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ MAINTENANCE Whenever the vacuum system does not perform properly, the entire system should be cleaned and inspected following the check list below. Clean built up dirt from the inside of the squeegee tool. Replace the squeegee blades if they are nicked or torn. If the edge of the squeegee blade is worn to a radius, turn it around or over so a new edge faces forward.
  • Page 36 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ VACUUM MOTOR - CARBON BRUSH INSPECTION - 260 Drain the solution and recovery tanks and remove them from the machine. Disconnect the batteries. See Figure 1. Remove access panel “A”. FIGURE 1 Front 56043021 - 260, 32, 38, 320, 380...
  • Page 37 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ VACUUM MOTOR - CARBON BRUSH INSPECTION - 260 (continued...) See Figure 2. Remove cover “B” from the vacuum motor. Remove the black plastic cover from the end of the vacuum motor. Remove one of the brush holders and remove the carbon brush from the motor. Measure the length of the brush.
  • Page 38 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ VACUUM MOTOR - CARBON BRUSH INSPECTION - 32, 38, 320, 380 Drain the solution and recovery tanks and tip them to the sides of the machine. Disconnect the batteries and open the front access door. Remove the large equalizer spring (take note of which hole it is hooked in before removing). See Figure 3.
  • Page 39 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ VACUUM MOTOR REMOVAL - 260 Drain the solution and recovery tanks and remove them from the machine. Disconnect the batteries. See Figure 4. Remove access panel “E”. Unplug the vacuum motor from the wiring harness. FIGURE 4 Front 56043021 - 260, 32, 38, 320, 380...
  • Page 40 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ VACUUM MOTOR REMOVAL - 260 (continued...) See Figure 5. Remove the (3) “F” screws and remove the vacuum motor from the machine. Reassemble in reverse order and test for proper operation. FIGURE 5 Front 56043021 - 260, 32, 38, 320, 380...
  • Page 41 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ VACUUM MOTOR REMOVAL - 32, 38, 320, 380 Drain the solution and recovery tanks and tip them to the sides of the machine. Disconnect the batteries and open the front access door. Remove the large equalizer spring (take note of which hole it is hooked in before removing). See Figure 6.
  • Page 42 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SQUEEGEE ADJUSTMENT - STRAIGHT Remove the squeegee tool and clean it thoroughly. Replace the squeegee blades if they are cut, nicked or wavy. Put the squeegee back on the machine and put the squeegee lever in the down position. See Figure 7.

  • Page 43: Squeegee Adjustment - Curved

    VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SQUEEGEE ADJUSTMENT - CURVED Remove the squeegee tool and clean it thoroughly. Replace the squeegee blades if they are cut, nicked or wavy. If the front edge of the wiping blade is worn to a radius, turn it around or over so that a new edge is facing forward. Put the squeegee back on the machine and put the squeegee lever in the down position.

  • Page 44: Squeegee Blade Replacement - Straight

    VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SQUEEGEE BLADE REPLACEMENT - STRAIGHT To disassemble the squeegee cartridge, remove the (2) small “K” screws and (2) large “L” screws (see Figure 9). FIGURE 9 Wood Support Blocks 56043021 - 260, 32, 38, 320, 380...
  • Page 45 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SQUEEGEE BLADE REPLACEMENT - STRAIGHT (continued...) Grip one of the “M” blades at the end of channel FIGURE 10 “N” and slowly peel it out of the channel (see Figure 10). Loosen and remove retainer “O” and remove the other blade “M”.
  • Page 46 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ SQUEEGEE BLADE REPLACEMENT - CURVED Remove the squeegee tool assembly and disassemble it. Discard the worn blade(s) and thoroughly wash the remaining parts. Install the new blade(s) and reassemble as shown in Figure 11. FIGURE 11 32, 38, 320, 380 Backup Blade Wiping Blade Backup Blade...
  • Page 47 VACUUM SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ TROUBLESHOOTING ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Problem: Machine Will Not Pick Up Water, Water Flows Around Ends Of The Squeegee Drain hose plug not sealing. Recovery tank cover not sealing. Batteries need charging. Defective vacuum motor. Air leaks in vacuum or squeegee hose. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Problem: Water In Vacuum Motor Operator using a high sudsing detergent.

  • Page 48: Drive Belt Removal - 32Bd, 38Bd, 320Bhd, 380Bhd

    DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ MAINTENANCE 260, 32B . . . Lubricate the (2) main wheel bearings and the caster swivel and wheel bearings once per month. 32BD, 38BD, 320BHD, 380BHD . . . Lubricate the (4) differential bearings, the (2) intermediate shaft bearings and the caster swivel and wheel bearings once per month.
  • Page 49 DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ DRIVE BELT REMOVAL - 32BD, 38BD, 320BHD, 380BHD (continued...) See Figure 2. Loosen the (2) “C” screws. FIGURE 2 Front Remove the brushes, lower the brush drive assembly, open the left splash guard and front access door. Remove bolt “D”...

  • Page 50: Drive Wheel Removal - 32Bd, 38Bd, 320Bhd, 380Bhd

    DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ DRIVE WHEEL REMOVAL - 32BD, 38BD, 320BHD, 380BHD Remove the differential from the machine (see steps 1-5 of the DIFFERENTIAL REMOVAL section of this chapter). Remove the set screws holding the wheels on the axle. Support the wheels and use a hammer and a brass drift to drive the axle out of the wheels.

  • Page 51: Main Wheel Removal - 32B

    DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ MAIN WHEEL REMOVAL - 260 (continued...) Remove the (4) “M” set screws in the frame members (heating the frame members with a torch will make it easier to remove the set screws if they are rusted). Note: The axle cannot be removed if the (4) “M” set screws are just loosened! Using a brass drift and a hammer, drive the axle “N”...

  • Page 52: Differential Removal - 32Bd, 38Bd, 320Bhd, 380Bhd

    DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ DIFFERENTIAL REMOVAL - 32BD, 38BD, 320BHD, 380BHD Drain the solution and recovery tanks, remove all of the battery cables, remove the batteries, and tip the machine on its left side. Remove the master link from the drive chain and remove the chain from the machine. See Figure 4.
  • Page 53 DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ DIFFERENTIAL REMOVAL - 32BD, 38BD, 320BHD, 380BHD (continued...) Remove retaining ring “R”, pin “S” and the (2) “T” bushings from the brake linkage. Pull the end of brake band “U” away from brake drum “V”. Note: As you complete the next step, look for the “W” shims between some of the “X” pillow blocks and the “Y”...

  • Page 54: Caster Replacement

    DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ DIFFERENTIAL REMOVAL - 32BD, 38BD, 320BHD, 380BHD (continued...) Installing the Differential 10 Clean all grease and oil from the axle shafts, pillow block bearings and locking collars. 11 Install the sprocket, brake drum, pillow blocks, and wheels on the new differential. 12 Install the differential assembly on the frame.

  • Page 55: Drive System Troubleshooting - 32Bd, 38Bd, 320Bhd, 380Bhd

    DRIVE SYSTEM ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ TROUBLESHOOTING - 32BD, 38BD, 320BHD, 380BHD Before troubleshooting the transport drive system make sure the brake is OFF. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Problem: No Wheel Drive, But Brush Motor Runs Transport drive cable needs adjustment. Transport drive cable broken. Transport drive belt broken. Transport drive chain broken.

  • Page 56: Batteries

    BATTERIES ________________________________________________________________________________________________________________________________________________________________________________ WARNING! Use extreme caution when working with batteries. Sulfuric acid in batteries can cause severe injury if allowed to contact skin or eyes. Explosive hydrogen gas is vented from inside the battery caps. This gas can be ignited by any electrical arc, spark, or flame.
  • Page 57 BATTERIES ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ BATTERY MAINTENANCE (continued...) • Keep the Batteries Clean - Use a damp cloth to wipe dirt from the top of the batteries. Battery terminals must be clean and tight. If the top of the batteries are wet after charging, the batteries have probably been over-filled.
  • Page 58 Nilfisk-Advance, Inc. 14600 21st Avenue North Plymouth, MN, 55447-3408 www.nilfisk-advance.com Phone: 800-989-2235 Fax: 800-989-6566 ©2001 Nilfisk-Advance, Inc., Plymouth, MN 55447-3408 Printed in the U.S.A.

This manual is also suitable for:

Convertamatic 32bConvertamatic 32bdConvertamatic 38bdHydro-retriever 260bhdHydro-retriever 380bhdHydro-retriever 320bhd

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