Pinguely-Haulotte HA20PX, Repair Manual

Page: 249 / 282

CORRECTIVE MAINTENANCE SHEET
Folio 1/1
CHANGING THE HYDRAULIC BLOCK
(TRAVEL / ON-OFF MOVEMENT / STEERING)
Sheet C092
Caution!
Ensure that the oil is not too
hot.
Caution!
Use a container to collect oil
to prevent pollution of the
environment.
Travel
1
2
4 3
1
1 - Preliminary operations
• Put the machine in the maintenance configuration (see corresponding
paragraph).
• Switch off electric power (see corresponding paragraph).
2 - Removing the hydraulic block
• Remove the chassis inspection flap enabling access to the hydraulic
block.
• Mark and disconnect the electric connections (2) of the hydraulic block (1).
• Mark and disconnect the block’s hoses (4).
NB: Unscrew the hoses slowly to release residual hydraulic pressure.
• Put caps on the hoses.
• Place a wedge under the hydraulic block if necessary.
• Remove the hydraulic block by removing the fixing screws and washers
(3).
3 - Installing the hydraulic block
• Put the hydraulic block into place and fix using screws equipped with new
toothed washers.
• Reconnect the hydraulic hoses according to the marks made during dis-
mantling.
• Reconnect the electric connections of the hydraulic block, according to the
marks made during dismantling.
• Put the machine back in the operational configuration.
• Make several movements using the replaced hydraulic block to purge the
hydraulic circuit.
• Check the level of the hydraulic oil tank.
On/off movement