Oil escapes from the hydraulic motor (rotor and rotating
mechanism)
By
Remedy
Cause
Atlas Copco Customer
Center/Dealer in your area
Workshop
Seal the motor
Replace the motor
Motor damaged
Oil leaks from hydraulic ports
By
Remedy
Cause
Carrier driver
Tighten the cap nuts (see section
Screw
connections/Tightening torques
)
Cap nuts loose
Oil escapes from parts of the hydraulic attachment installation
(connecting fittings, hoses etc.)
By
Remedy
Cause
Carrier driver or workshop
Tighten the connecting fittings; replace any defective parts;
check the hydraulic attachment installation, replace any
damaged parts, only use original parts (see section
Screw
connections/Tightening torques
)
Connecting fittings are loose
Oil escapes from the hydraulic attachment
By
Remedy
Cause
Workshop
Tighten the covers see chapter (
Screw
connections/Tightening torques
)
Covers are loose
Workshop
Replace the O-rings (see chapter
Replacing rotor and/or O-
rings of covers
)
O-rings of covers defective
Operating temperature too high
By
Remedy
Cause
Carrier driver or workshop
Check oil level and top up oil
Oil level in tank too low
Atlas Copco Customer
Center/Dealer in your area
Check and correct motor speed of carrier
Drive the pump
Carrier pump delivery too high; a constant
volume of oil is squirted out of the pressure
relief valve
Workshop or Atlas Copco
Customer Center/Dealer in
your area
Fit new type-tested pressure relief cartridges or a more
precise pressure-limiting valve
Pressure relief valve defective or valve with
poor characteristics
The hydraulic compactor cannot be rotated
By
Remedy
Cause
Atlas Copco Customer
Center/Dealer in your area
Replace the defective parts
Rotation motor/transmission defective
Carrier driver or Service
Department of carrier
manufacturer
Check the
»Rotate gripper«
function of the carrier (Observe
the Operating Instructions for the carrier)
Carrier defective
© 2014 Construction Tools EOOD | No. 3390 5121 01 | 2014-11-19
Original instructions
42
HC 150, 350, 450, 850, 1050, 1055
TROUBLESHOOTING
