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USER MANUAL
33014815(1)2005-07 A 11
PROBLEMS AND REMEDIES
The following table shows the most common problems that may arise during the use of the machine, the possible causes and
the suggested remedies to solve them.
PROBLEMS AND REMEDIES
WARNING!
When applying a recommended solution, always follow the instructions relating to it.
NOTE
Do not hesitate to contact Nilfisk-Advance if a problem cannot be solved by following the instructions
provided.
PROBLEM CAUSE REMEDY
Heavy material not collected/traces of dirt
left behind during use
Excessive drive speed Decrease drive speed
Light print Adjust print
Worn out broom Replace the brooms
Broom bristles bent or tangled with steel wire,
ropes etc.
Remove any tangled material
Excessive amount of dust left on the ground
or coming out of skirts
Fan off Switch on the fan
Clogged filters Clean filters
Material is thrown forward Broken skirt gasket Replace
Engine fails to start See Troubleshooting in the engine Manual
Machine power is reduced Insufficient pump oil feed Check by-pass screw tightening
Check pump pressure (16 to 20 Bar)
Overhaul motor
Worn motors Overhaul pump
The machine fails to run Open by-pass Check by-pass screw tightening
Faulty pedal control Check pressure/replace pedal
No power to pump or motors Overhaul motor
Overhaul pump
Machine fails to brake No brake fluid Top up fluid tank
Brake fluid pump failure Overhaul pump
Air inside the system Bleed system
Jaw cylinders failure Replace cylinders
Worn or greasy brake lining Replace brake lining
Hard power steering Locked power steering Replace power steering
Faulty priority valve Overhaul/replace priority valve
Hopper fails to lift/lower Locked distributor Check distributor
Locked cylinder Check cylinder
Waste loss from hopper Broken hopper gasket Replace gaskets
Filter shaker fails to operate Broken push-button Replace
Blown fuse Replace
Excessive motor absorption causes:
– Worn carbon brushes
– Dirty or worn bearings
– Burnt armature or winding.
Replace
Replace
Replace
Blown filter shaker fuse Excessive motor absorption (see above)
Faulty fuse Replace
Shorted cable Check system
Noisy fan Motor failure Overhaul motor
Fan fails to operate No voltage to motor Check electrical system
Motor failure Overhaul motor
Skirt fails to open No pressure to cylinder Check cylinder
Locked linkage Check linkage
Skirt gasket lifted by broom Skirt gasket too long Shorten/replace
Poor suction Motor failure Overhaul motor
Clogged or broken closed pocket filter Clean/replace filter