OPERATION
46
500ze YM180 (12
−
2011)
MACHINE TROUBLESHOOTING
Problem
Cause
Remedy
Excessive dusting
Vacuum fan speed knob turned off
or set too low
Adjust vacuum fan speed knob for
sweeping conditions
Dust suppression system not on
Turn on dust suppression system
Vacuum hose damaged
Replace vacuum hose
Vacuum fan seal damaged
Replace vacuum fan seal
Vacuum fan failure
Call authorized service representative
Poor sweeping
performance
Vacuum fan speed too low for
conditions
Increase vacuum fan speed
Debris caught in front vacuum
hose
Clear debris from vacuum hose
Hopper is full
Empty hopper
Front nozzle is set too high
Adjust height of front nozzle
Blockage in vacuum fan system
Clear debris from vacuum fan system
Machine moving too fast for
conditions
Release accelerator pedal or press
brake pedal to decrease speed
Cyclones blocked
Clear debris from cyclones
Worn brush bristles
Replace brushes
Brush pressure set too light
Increase brush pressure
Brushes not properly adjusted
Adjust brushes
Debris caught in brush drive
mechanism
Remove debris from brush drive
mechanism
Brush drive failure
Call authorized service representative
Improper brushes
Install correct brushes. Refer to Brush
Information or call authorized service
representative
Brush sweep path is too wide
Narrow sweeping path
Brushes bouncing
Brushes set too low
Adjust height of brushes
Brush speed too low in relation to
speed of machine
Adjust brush speed
Dust suppression system
not operating (no mist
from CloudMaker)
Machine not in Work Mode 1
Place machine in work mode 1
Pump is not on
Turn on pump
Water control knob not set to
correct position for sweeping
conditions
Adjust water control knob for
sweeping conditions
Water liquid level sensor dirty /
inoperable
Clean water liquid level sensor if dirty.
Call authorized service representative
if water liquid sensor is inoperable
Water tank is empty
Fill water tank
Blocked jet in
−
line filter
Clear blockage from jet in
−
line filter
Blocked jet
Clear blockage from jet
Pump vacuum tube disconnected
at tank drain tube
Reconnect pump vacuum tube to tank
drain tube
Blocked tank vacuum strainer
Clear debris from tank vacuum
strainer
Defective water pump
Call authorized service representative
