Haulotte Group HA12CJ, Maintenance Book

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128 4000360350 E12.14 USA/GB
HA12CJ - HA32CJ - -
D
- Diagnosis assistance
Low hydraulic pump
pressure or power
Faulty hydraulic pump Repair or replace the pump
The pressure regulation screw on the
electric pump unit is not properly adjusted
Tighten by 3/4 turn
The pressure rises from 90 bar(1305 psi) to 190 bar(2755
psi)
Oil leak on couplings, hoses or components Contact HAULOTTE Services®
Faulty valve body Replace the valve body
Clogged oil filter
Replace the oil filter cartridge
See maintenance sheet E003
Hydraulic pump is
making an abnormal
noise Not enough hydraulic oil Top up the oil level
Hoses, connectors broken or loose (on the
inlet side)
Repair, tighten or replace the hoses or connectors
The battery charger
does not work
No voltage in the selector Check the power supply connection
Batteries discharged
Charge the battery(ies) with another charger which does
not have a regulator
Faulty charger Repair or replace the charger
Batteries wrongly connected to the charger Check the connection
Faulty batteries Replace the batteries
The battery charge
indicator does not
light up
Faulty fuse Replace the fuse(s)
Faulty indicator Repair or replace the indicator
Incorrect wiring Check or tighten the connections
Several movements
(some but not all) do
not work
Electric fault on a solenoid valve (wiring) Check the wiring of the solenoid valves
Faulty solenoid valve (of one of the
movements in question)
Replace the solenoid valve
or
Contact HAULOTTE Services®
Problem Probable cause Solution