KMW 1220 - COMFORT DRIVE TROUBLESHOOTING; Comfort Drive Activation and Functionality

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22.3. TROUBLE SHOOTING OPTIONAL COMFORT DRIVE
PROBLEM
POSSIBLE CAUSE
CORRECTION
Comfort drive does not activate.
Turn on comfort drive and check to
see if 12 volts are at solenoid.
If 12 volts are not available, inspect
and repair as follows.
Solenoid not properly grounded
If not properly grounded, repair.
Fuse
replace if required
Wire damaged or cut.
If damaged repair or replace
Switch does not have 12 volts.
Trace circuit and find cause.
Tractor switch is not on.
Turn tractor switch on.
Power circuit not connected.
Connect to tractor power supply that
is only activated when tractor switch
is on.
Comfort drive does not work
properly
Pre-charge pressure is not correct
Check pre-charge pressure of each
end of accumulator and correct as
required.
Leak in fluid or gas side of
accumulator
Repair and replace accumulator
seals
Circuits not connected correctly
Trace circuits and make sure large
end of accumulator is connected to
base end of lift cylinder.