Troubleshooting
Printed in U.S.A.
133
50950436
/
H0521
Problem
Possible Cause
Corrective Action
Hydraulic cylinder
action is slow for lift
and/or tilt functions
Low engine speed
Operate engine at higher speed.
Hydraulic oil viscosity is too heavy
Allow longer warm-up or replace exist-
ing oil with proper viscosity oil.
Control linkage is restricted
Check for control linkage restriction
and adjust.
Hydraulic oil leaking past cylinder
piston seals
Contact your dealer.
Solenoid valve(s) could be
malfunctioning
Check electrical connections to the
lift solenoid and repair connections
as needed. If lift solenoid valve is still
not functioning properly, contact your
dealer.
Relief valve in control valve not
functioning correctly (squealing noise
should be evident while operating.)
Contact your dealer.
Bucket does not level
on the lift cycle
Self-leveling valve mis-adjusted or
malfunctioning
Contact your dealer.
Jerky lift arm and
bucket action
Seat or restraint bar switch
malfunction
Contact your dealer.
Air in the hydraulic system
Cycle lift / tilt cylinders to maximum
stroke and maintain pressure for a
short time to clear air from system.
Oil in hydraulic reservoir is low
Check and add oil.
Bucket drifts downward
with tilt control in neutral
Oil leaking past tilt cylinder seals
(internal or external)
Contact your dealer.
Self-leveling valve is malfunctioning
Contact your dealer.
Leaking hydraulic hoses, tubes or
fittings between control valve and
cylinders
Inspect hoses and tubes, tighten
fittings. Replace hoses or tubes as
needed.
No down pressure on
the bucket
Control valve is in its float position
Take control out of float position.
Tilt cylinders are malfunctioning
Contact your dealer.
Relief valve in control valve not
functioning correctly (squealing noise
should be evident while operating.)
Contact your dealer.
Bucket will not tilt, lift
arm work properly
Tilt solenoid valve malfunctioning
Check electrical connections to the
tilt solenoid and repair connections
as needed. If tilt solenoid valve is still
not functioning properly, contact your
dealer.
Tilt spool in control valve not actuated
or leaking
Check valve control linkage and / or
tube connections to valve.
Содержание MUSTANG 1050RT
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