PRONAR T286 Operator's Manual page 163

SECTION 5
FAULT
Incorrect hydraulic
system operation.
Tipping / pulling the load
box on / removing the
load box from the trailer is
not possible.
CAUSE
Improper hydraulic oil
viscosity.
Insufficient tractor hydraulic
pump output, tractor
hydraulic pump is damaged
Damaged or contaminated
ram cylinder
Excessive cylinder loading.
Damaged hydraulic lines.
Hydraulic system conduits
are not connected or
connected incorrectly.
The electrical system for
controlling the trailer is not
connected.
Control panel is switched off Switch control panel on
Control panel is damaged
Damaged hydraulic quick
couplers
Insufficient quantity of
hydraulic oil in tractor's
hydraulic system
5.47
REMEDY
Check oil quality, make sure that
the oil in both machines is of the
same type. If necessary change
oil in tractor or in trailer
Check tractor hydraulic pump.
Check cylinder ram piston
(bending, corrosion), check ram
cylinder for tightness (piston seal),
in case of need repair or replace
ram cylinder.
Check mechanism controlled by
ram cylinder for mechanical
damage.
Check and ascertain that hydraulic
conduits are tight, not fractured
and properly tightened. If
necessary replace or tighten.
Check the connection and connect
the leads according to the
Operator's Manual.
Check the connection and connect
the leads according to the
Operator's Manual.
Repair at an authorised service
point
Replace.
Use the tractor having hydraulic oil
output compatible with the oil
demand of the trailer
Pronar T286