Condux WDR505 Underground Pulling Trailer - Manual (Page 18)

18
PROBLEM: CAUSE: SOLUTION:
The clogged filter
warning light turns on.
Hydraulic oil temperature
too low
Wait for a few minutes
for heating the oil
without speed up the
diesel engine. It is
possible to reduce
the oil heating time
by turning off the fan
of the hydraulic oil
radiator (if turned on)
and by closing the reel
winder valve at 50 bar
– 725 psi
The oil is too thick
as regards as the
environmental conditions
Use oil with lower
viscosity as per the
indications in the
instruction manual
Clogged hydraulic oil filter Replace
When starting the
control lever the bull-
wheels don’t work.
Disconnect joy-stick
contacts
Reconnect
Oxidised joy-stick contacts
Clean or spray with a
suitable vaporiser
The negative brake on the
reduction unit doesn’t open
Verify the intervention
and the electric
contacts of the
negative brake opening
solenoid valve
Disassemble the brake
and verify if the brake
discs are in locking
position – technical
assistance
The electronic card for
pump control doesn’t work
Verify the ignition of
the green and red
LEDS on the card by
moving the joy-stick –
if the LEDS don’t turn
on, replace the fuse on
the card or verify the
joy-stick potentiometer
– technical assistance
Defective pump servo
control Verify the electric
contacts – technical
assistance