Nilfisk SC800 User Manual

User Manual - Page 81

For SC800. Also, The document are for others Nilfisk models: 56112000(SC750-26D), 56112004(SC750-28D), 56112006(SC750-28C), 56112012(SC750 ST-26D), 56112013(SC750 ST-28C), 56112016(SC800-28D), 56112018(SC800- 28C), 56112024(SC800-32C), 56112028(SC800-34D), 56112032(SC800 ST-34D), 56112780 (SC70- 28R)

Loading ...

Service Manual: SC750, SC800, SC 750 ST, SC800 ST

Form Number 56043150 Page 81

Troubleshooting

Vacuum Motor Does Not Turn On (Scrub function works)

Possible Causes:

• Defecve Vacuum Motor

• Defecve Vacuum Motor Contactor (Relay) K1

• Defecve Wiring

• Defecve



Good water pick up performance depends on the proper amount of air owing through the squeegee pickup tool. Air

entering the vacuum system before the pickup tool will reduce its ability to pick up water. Anything that restricts the

movement of air through the system will also reduce its ability to pick up water.

Possible Causes:

• Restricted air ow

o Clogged or kinked squeegee vacuum hose

o Clogged vacuum motor inlet or outlet port

• Damaged squeegees

• Air leaks

o Recovery tank lid gasket is not sealing

o Cracked squeegee vacuum hose

o Cracked recovery tank

• Vacuum motor is weak

Begin with a good visual inspecon of the system. Check the condion of the squeegees and the recovery hose. Take the

recovery hose o and rinse it out. Check the recover tank cover gasket condion. Repair any problems found.

If no visual problems are found, test the system using a vacuum gauge PN 56205281 and open- hole adapter. (See the

Special Tools Secon below. The adapter can be made from a piece of PVC pipe.)

1. Remove the vacuum hose from the squeegee tool.

Loading ...

Nilfisk SC800 Heavy-Duty Cleaning

User Manual - Page 81