Haulotte Group H14TX, Maintenance Book

Page: 90 / 120

90 4000364740 E12.16 USA / GB
H14TX - HB40 - H16TPX - HB44J
D
- Diagnosis assistance
2 - Troubleshooting
Problem Probable cause Solution
Engine cannot be
started or
stopped
Empty fuel tank Fill the tank
Batteries discharged Recharge the battery or batteries
Faulty printed circuit fuses (ground control
box)
Replace the fuse(s)
E-stop push-buttons are pushed in Pull the E-stop buttons
Engine in restricted mode (oil pressure
indicators, overheating indicator, alternator
charging indicator and clogged air filter
indicator on)
See engine manufacturer's manual or contact HAULOTTE
Services®
Charge indicator bulb burnt out Replace the bulb
Clogged air filter indicator on Replace the air filter cartridge
Faulty engine safety relay Replace the relay(s)
Poor cable/battery terminal contact Loosen and clean the terminals
Low hydraulic
pump pressure or
power
Clogged air filter Replace the filter
Engine speed too low
Contact HAULOTTE Services®
Oil leak on couplings, hoses or components
Clogged oil filter
Replace the oil filter cartridge
See maintenance sheet E003
Platform controls
do not respond -
Without buzzer
Ground control box selector key is set to
ground control box position Turn the ground control box selector key to platform control
box position
'Enable Switch' control validation device is not
enabled Enable the device and keep pressed down during
movement
Faulty joystick
Replace the joystick
Contact HAULOTTE Services®
Faulty solenoid valve for the selected
movement Replace the solenoid valve or the solenoid valve coil
Contact HAULOTTE Services®
Not enough hydraulic oil Top up the oil level
Platform controls
do not respond -
Buzzer
Platform overload indicator
Remove some weight
Do not exceed the authorised limit Section G 1-Main
characteristics
Tilt or slope exceeding the authorised limit
Retract the telescope and lower the boom
Correct the tilt to reset
Do not exceed the authorised limit Section G 1-Main
characteristics
No high speed Platform extended Lower the boom as far as possible
No steering
Not enough hydraulic oil Top up the oil level
'Enable Switch' control validation device is not
enabled Enable the device and keep pressed down during
movement
No turntable
rotation Turntable rotation locking pin is inserted in the
chassis
Remove the pin
Hydraulic pump is
making an
abnormal noise
Not enough hydraulic oil Top up the oil level
Hydraulic pump
cavitation
Oil viscosity level is too high
Drain the circuit and replace with the recommended type of
oil
A drive wheel
does not hold the
road
Insufficient load on one wheel Press the differential locking selector