48
Control levers
will not centre
Machine operates
erratically
Machine will not
travel in straight
line
Linkage out of
adjustment
Linkage
disconnected
Centering spring
broken
Linkage binding
Control lever
linkage loose
Spiral pin in pintle
lever worn or
broken
Linkage binding
Control lever
travel out of
adjustment
Adjust, check for wear at
rod ends, loose counter
nuts
Reconnect, check for wear
at rod ends, loose counter
nuts
Replace
Binding of spring bushing
in spring box. Align spring
box with linkage.
Control levers binding
with safety shields or
sound insulation Adjust
Control lever bearings
binding in lever assy.
Inspect replace or clean as
required
Inspect linkage for wear at
rod ends, loose counter
nuts
Replace pin. Inspect pintle
lever for wear at pin hole.
Ensure bolt clamping lever
to pump shaft is tight
See hydrostatic system
Adjust
Adjust
Final drive
transmission
noisy
No lubricating oil
Axles have too
much end play
Chain loose
Check and bring oil to
the proper level. Use
appropriate engine oil
(See Section 5 for
specifications).
Pre-load axle bearings
removing all end play
Replace the chain
3. Final Drive Transmission
Foot pedals do
not operate
smoothly
Foot pedal linkage
out of adjustment
Foot pedal
linkages need
lubrication
Cable Binding
Adjust foot pedal
linkages
Lubricate with a
silicone based lubricant
Check routing for kinks
etc.
Lift arms raise
slowly at full
engine rpm
Lift or tilt
cylinders will not
support a load
Hydraulic oil
overheating
Anti-cavitation
check valve not
functioning
Reservoir low on
oil
Foot pedal linkage
binding
Auxiliary foot
pedal engaged
Engine RPM too
slow
Anti-cavitation
check valve spring
broken
Main relief valve
in control valve
faulty
Internal leakage in
pump due to wear
Oil bypassing one
or both lift
cylinder piston
seals
External leak
between or at
control valve and
cylinders
Control valve
spool not
centering
Oil leaking by one
or both cylinder
piston seals
Reservoir low on
fluid
Auxiliary foot
pedal engaged
Engine RPM too
slow
Incorrect
temperature
sensor
Inspect and repair or
replace
Replenish with appropriate
oil (See Section 5 for
specifications).
Inspect and adjust
Disengage
Check RPM and reset
Replace
Check pressure if
necessary - adjust
Check pump flow and
repair or replace as
necessary
Install new piston seal kits
Check for leaks and
correct
Check for sticking foot
pedal linkage
Check for broken or stuck
return spring on valve
spool
Install new piston seal kits
Replenish with appropriate
oil(See Section 5 for
specifications).
Disengage
Check RPM and adjust
Replace
4...MAINTENANCE
4. Control Levers
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