OPERATING INSTRUCTIONS
Page 36 Giga-Trailer
15. List of malfunctions – Hydraulics
Malfunction
Cause
Remedy
No silo-trailer
break in oil flow
Check quick-release coupling. Switch
Functions
tractor control unit to pressure.
All functions run out
no return to tractor
Check control unit on tractor
back in
hydraulic plug worn
replace hydraulic plug
forward drive only
control piston (floor
Clean control piston and check play
running occasionally
conveyor valve) sticking
during installation
pilot piston (floor
clean pilot piston and check play
conveyor valve) sticking
during installation
Tailgate closes, but
leaky cylinder
re-seal cylinder
opens a little again
during loading
piston in cylinder leaking
re-seal cylinder piston
oil pre-stressing too low
actuate toggle switch a little longer
tailgate sags during
cylinder leaking
Seal cylinder
operation
Control block leaking
O-rings defective
Replace O-rings
connecting bar not tight
Tighten connecting bar to 25 – 28 Nm
Screw plugs leaky
Seal screw plugs with Loctite or
sealing tape.