Holder C 9.92 H - Manual (Page 150)

C 9.92 Operating Instructions
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Malfunctions, causes, remedy
Malfunction Cause Remedy
Hydraulic oil overheats quickly,
system working against excess
pressure.
(engine under load) Cylinder at limit stop
Attachment is not connected, but
joystick is in work position (quick
coupler)
Move joystick to neutral position
(free circulation)
Move joystick to neutral position
(free circulation)
Oil is foaming Leak in the suction area Inspect all line fittings and tighten, if
necessary
Hydraulic system is working too
slowly, whistling noise Hydraulic oil level too low
Temperatures too low
Add oil as specified
Fill proper oil type according to
maintenance instructions
Steering is not working Priority valve contaminated
Relief valve in power steering not
closing
Clean priority valve (mounted on the
frame at the right)
Remove and clean (service centre)
Lost steering motion when steering
direction is changed fast Leak in the steering return line Inspect the hose connections