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GENERAL MACHINE TROUBLESHOOTING

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Poor water pick-up

Worn or torn squeegee blades

Reverse or replace

Squeegee out of adjustment

Adjust so blades touch   oor evenly across 

entire width

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Recovery tank drain hose lea

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Secure drain hose cap or replace

Recovery tank cover gasket lea

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Replace gasket / Seat cover properly

Debris caught in squeegee

Clean squeegee tool

Vacuum hose clogged

Remove debris

Using too much solution

Reduce 

 ow via control panel solution 

button

Foam   lter cover not seated

Seat cover properly

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Wrong brush or pad type

Consult Nil

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Wrong cleaning chemical

Consult Nil

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Moving machine too fast

Slow down

Not using enough solutio

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Increase   ow via control panel solution 

button

Scrub Motors Do Not Ru

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Tripped 20 Amp (F3) circuit breaker

Check for electrical short circuit & reset

Inadequate solution   ow

or no solution

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Solution lines, valves,   lter or trough 

clogged

Flush lines, trough and clean solution   lter

Solution turned OFF

Activate   ow via control panel solution 

button

Solution solenoid valve plugged  or 

defective

Clean or replace valve 

(see service 

manual)

Machine does not run

Emergency stop switch trippe

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Reconnect battery connectors

Operator seat safety switch

Check for open circuit and replace

Main system controller

Check error fault codes

(see service manual)

Tripped 3 Amp (F1) circuit breaker

Check for electrical short circuit & reset

No FWD/REV wheel driv

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Drive system speed controller

Check error fault codes

(see service manual)

Emergency stop switch trippe

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Reconnect battery connectors

Vacuum shuts off and display 

shows “FULL” when recovery tank 

is not full

Plugged squeegee hose

Clear debris

Vacuuming large amounts of water

at a high travel speed

Slow down or disable auto shut-off feature

(see service manual)

Poor Sweeping Performance

(Cylindrical System)

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Bristles have taken a set

Rotate brushes

No Detergent Flow (EcoFlex 

models only)

Empty detergent cartridg

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Fill detergent cartridge

Plugged or kinked detergent   ow line

Purge system, straighten lines to

remove any kinks

Dry seal cap on detergent cartridge not 

sealed

Reseat dry seal cap

Detergent pump wiring

disconnected or backwards

Connect or reconnect wiring

12/2014

A - 25

 56091145 - SC6500

ENGLISH -

 A

INSTRUCTIONS FOR USE

Summary of Contents for SC6500

Page 1: ...SC6500 www crescentindustrial co uk Operator manual English ...

Page 2: ...s machine If you have any questions contact your supervisor or your local Nil sk Industrial Dealer If the machine malfunctions do not try to correct the problem unless your supervisor directs you to do so Have a quali ed company mechanic or an authorized Nil sk Dealer service person make any necessary corrections to the equipment Use extreme care when working on this machine Loose clothing long ha...

Page 3: ...accidents NAME PLATE The Model Number and Serial Number of your machine are shown on the Nameplate on the machine This information is needed when ordering repair parts for the machine Use the space below to note the Model Number and Serial Number of your machine for future reference MODEL NUMBER _______________________________________________________ SERIAL NUMBER _________________________________...

Page 4: ...ced physical sensory or mental capabilities or lack of experience and knowledge While on ramps or inclines avoid sudden stops Avoid abrupt sharp turns Use low speed down ramps Keep sparks ame and smoking materials away from batteries Explosive gases are vented during normal operation Charging the batteries produces highly explosive hydrogen gas Charge batteries only in well ventilated areas away f...

Page 5: ...f O and remove the key before changing the brushes and before opening any access panels Take precautions to prevent hair jewelry or loose clothing from becoming caught in moving parts Use caution when moving this machine in below freezing temperature conditions Any water in the solution recovery or detergent tanks or in the hose lines could freeze causing damage to valves and ttings Flush with win...

Page 6: ...ator s Seat 5 Steering Wheel Tilt Adjust Knob 6 Parking Brake 8 Drive Pedal Directional Speed 10 Drive and Steer Wheel 11 Emergency Stop Switch Battery Disconnect 12 Scrub Deck 13 Rear Wheel 14 Battery Compartment under recovery tank 20 Machine Battery Connector 1 2 5 6 8 10 11 12 13 14 20 21 3 24 25 26 27 29 23 30 31 32 21 Control Panel 23 Operator Seat Adjustment Lever 24 Control Circuit Breaker...

Page 7: ... 15 Recovery Tank Shutoff Float 16 Vacuum Motor Filter Housing 17 Squeegee Assembly 18 Solution Filter 19 Recovery Tank Drain Hose 22 Squeegee Tilt Adjust Knob 28 Squeegee Height Adjust Knob 30 Tie Down Locations 30 4 9 15 16 17 18 19 7 28 28 22 12 2014 A 7 56091145 SC6500 ENGLISH A INSTRUCTIONS FOR USE ...

Page 8: ...dels only K Display K1 Solution Flow Indicator K2 Fault Indicator K3 Hour Meter K4 Detergent Indicator if so equipped K5 Battery Indicator K6 Scrub Pressure Indicator K7 Recovery Tank FULL Indicator K8 Battery Low Indicator K9 Detergent Percentage Indicator L Scrub Speed Switch Flow Flow Flow Regular Heavy Extreme Rate 1 Rate 2 Rate 3 Scrub Scrub Scrub regular scrub heavy scrub extreme scrub press...

Page 9: ... cracks or other damage If damage is evident contact the carrier that delivered them or the battery manufacturer to le a damage claim 2 Turn the Master Key Switch A OFF and remove the key 3 Remove the recovery tank from the machine NOTE Disconnect the tether and the vacuum motor wiring and lift the tank straight up and off the machine 4 Your machine comes from the factory with enough battery cable...

Page 10: ...kirt assemblies NOTE The skirts are held in place by two large Knobs AA Loosen these knobs and slide the Skirt Assemblies BB off of the Scrub Deck 3 To mount the Brushes CC or pad holders align the Lugs DD on the brush with the holes on the mounting plate and turn to lock in place turn the outside edge of brush towards the front of machine as shown EE FIGURE 2 AA BB CC DD EE EE EE EE AA EE BB CC D...

Page 11: ...emblies NOTE The skirts are held in place by two large Knobs AA Loosen these knobs slide the Skirt Assemblies BB forward slightly and then off of the Scrub Deck 3 Loosen the Black Knobs CC on top of the Idler Assemblies DD until they drop down far enough to disengage from the Notches EE and remove 4 Slide the brush into the housing lift slightly push and turn until it seats Re install the Idler As...

Page 12: ...ed in the tank or the detergent dispensing system can be used When using the detergent dispensing do not mix detergent in the tank plain water should be used CAUTION Use only low foaming non ammable liquid detergents intended for machine application Water temperature should not exceed 130 degrees fahrenheit 54 4 degrees celsius FIGURE 4 revised 10 2015 FIGURE 4 1 F1 SOLUTION SYSTEM INDICATOR F1 Se...

Page 13: ...ee mount bracket and tighten the Squeegee Mount Thumb Nuts AA 2 Connect the Recovery Hose BB to the squeegee inlet using Hose Clamp CC 3 Follow the steps in the Squeegee Adjustment section to properly adjust the squeegee height and angle FIGURE 5 12 2014 A 13 56091145 SC6500 ENGLISH A INSTRUCTIONS FOR USE ...

Page 14: ...ent system is on There are 4 modes of EcoFlex operation 1 Plain Water Cleaning Mode During scrubbing the detergent system can be turned off at any time by pressing the Detergent ON OFF Switch J to allow scrubbing with water only Detergent Indicator J1 will be OFF 2 Minimum Concentration Detergent Mode EcoFlex Indicator G1 ON Activated by momentarily pressing EcoFlex Switch G when in maximum concen...

Page 15: ...AA BB DETERGENT SYSTEM PREPARATION AND USE ECOFLEX MODELS ONLY Purge Press J F for 3 seconds to purge FIGURE 6 FIGURE 7 Minimum concentration detergent mode Maximum concentration detergent mode 12 2014 A 15 56091145 SC6500 ENGLISH A INSTRUCTIONS FOR USE ...

Page 16: ...check behind the machine occasionally to see that all of the waste water is being picked up If there is water trailing the machine you may be dispensing too much solution the recovery tank may be full or the squeegee tool may require adjustment 9 The machine defaults to the last cleaning mode used Minimum or Maximum Concentration Detergent if detergent is installed and was activated Press the EcoF...

Page 17: ...l Wand Kit PN56413687 is available from Nil sk 3 Turn the Master Key Switch A ON and press the Vacuum Wand Switch I The vacuum motor and the pump will run continuously until the switch is pressed again to turn it OFF NOTE The Recovery Tank FULL indicator is disabled when the wand mode is activated The oat will stop the ow into the recovery tank SERVICE NOTE Refer to the service manual for detailed...

Page 18: ...ct and clean Solution Filter X Check Foot Parking Brake For Wear Adjustment X Clean Solution Trough on Cylindrical System X Purge Detergent System EcoFlex only X Side Broom Maintenance X X s g n i t t i F e s a e r G n o i t a c i r b u L X s e h s u r B n o b r a C k c e h C Have Nil sk check the vacuum motor carbon motor brushes once a year or after 300 operating hours The brush and drive motor ...

Page 19: ...FIGURE 9 AA AA AA AA BB BB AA BB BB 12 2014 A 19 56091145 SC6500 ENGLISH A INSTRUCTIONS FOR USE ...

Page 20: ...t allow tools to touch more than one battery terminal at a time ALWAYS disconnect the negative ground cable rst when replacing batteries to prevent sparks ALWAYS connect the negative cable last when installing batteries CAUTION To avoid damage to oor surfaces wipe water and acid from the top of the batteries after charging CHECKING THE BATTERY WATER LEVEL Check the water level of the batteries at ...

Page 21: ...eegee blade has 4 working edges as shown below Turn the blade so a clean undamaged edge faces toward the front of the machine Replace the blade if all 4 edges are nicked torn or worn to a large radius 5 Install the blade following the steps in reverse order and adjust the squeegee tilt SQUEEGEE ADJUSTMENT There are two squeegee tool adjustments possible angle and height Adjusting the Squeegee Angl...

Page 22: ...screws and nuts it has 2 working edges 3 The main skirt blade has 4 working edges as shown Turn the blade so a clean undamaged edge faces toward the center of the machine Replace the blades as a set if all 4 edges are nicked torn or worn beyond their ability to be adjusted 4 Reinstall the skirt housing assemblies onto the machine and adjust the blade for proper contact to the oor when the brush de...

Page 23: ...SIDE SKIRT MAINTENANCE L A C I R D N I L Y C K S I D BB DD DD AA FF BB CC EE CC DD DD 1 2 3 4 FF FF AA AA AA FF FIGURE 12 12 2014 A 23 56091145 SC6500 ENGLISH A INSTRUCTIONS FOR USE ...

Page 24: ...JUSTMENT Once inside of the Adjust Mode perform the following steps to adjust the side broom 1 Press Scrub On Switch D to lower the side brooms and press the Side Broom Switch C to raise the side brooms until the desired height is reached 2 To save the side broom height position press the Scrub Off Switch E The side brooms will raise to the up position and the display will show a key icon indicati...

Page 25: ...an solution lter Solution turned OFF Activate ow via control panel solution button Solution solenoid valve plugged or defective Clean or replace valve see service manual Machine does not run Emergency stop switch tripped Reconnect battery connectors Operator seat safety switch Check for open circuit and replace Main system controller Check error fault codes see service manual Tripped 3 Amp F1 circ...

Page 26: ...otor contactor coil open 23 Left brush motor contactor coil short to ground 24 Center brush motor contactor coil open 25 Center brush motor contactor coil short to ground 26 Right brush motor contactor coil open 27 Right brush motor contactor coil short to ground 28 Scrub deck actuator open 29 Vacuum motor open 30 Vacuum motor contactor coil open 31 K1 Vacuum motor contactor coil short to ground 3...

Page 27: ...l Composition and Recyclability Type of machine weight recyclable 0 0 1 2 m u n i m u l A 3 3 9 1 c s i m s e n i g n e s r o t o m l a c i r t c e l E 0 0 1 1 5 s l a t e m s u o r r e F 1 8 2 s e l b a c s e s s e n r a H 0 0 s d i u q i L 0 3 e l b a l c y c e r n o n c i t s a l P 0 0 1 3 e l b a l c y c e r c i t s a l P 2 9 1 2 e n e l y h t e y l o P 3 3 1 r e b b u R SOLUTION FLOW RATES s ...

Page 28: ...c n i h t g n e L e n i h c a M 6 8 4 1 5 8 5 m c h c n i t h g i e H e n i h c a M 3 1 2 4 8 m c h c n i d r a u g d a e h r e v o w t h g i e H e n i h c a M Machine Width at Rollers Cylindrical inch cm 47 5 121 55 5 141 Machine Width at Rollers Disc inch cm 42 5 108 52 5 133 5 2 1 9 4 m c h c n i e e g e e u q S h t i w h t d i W e n i h c a M F 57 145 H 4 1 2 4 8 m c h c n i h t d i W n r u T ...

Page 29: ...or purchase For more information or a cleaning solution to suit your business please get in touch Berrington House Berrington Road Leamington Spa CV31 1NB t 0845 33 77 695 f 0845 33 78 695 e info c ind co uk For a more comprehensive product range please visit our website Address Contact ...

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