HYDRAULIC
64
547379EN
70 (08/03/2017)
COMPENSATION/TILTING CYLINDER REMOVAL
WARNING
The hose connected to the compensation/tilting cylinders are pressurized EVEN WHEN STOPPED.
Before carrying out work to remove the cylinders, these hoses must be decompressed by following
the steps (I, 070  53), (II, 070  52) and (III, 070  54) because this line cannot be decompressed from the
distributor.
Compensating cylinder
- Raise arm 1/2 so that the intermediate hinge (1, 070  55) is raised
1m (39.37 in).
- Switch o the power supply.
- Secure the basket/jib assembly with a hoist and a sling:
3 without rotation cylinder (3D - JIB): 230 kg (507 lbs)
3 with rotation cylinder (3D - JIB): 267 kg (589 lbs)
- Open the right-hand turret cover.
- Remove the cylinder pivot pins (1, 070  56) and remove the cylinder
from the arms while leaving it connected to the hoses:
3 - 120 AETJL : 18 kg (40 lbs)
3 - 150 AETJC - 150 AETJL - 170 AETJL : 20 kg (44 lbs)
- Remove and plug the hoses connected to the cylinder and remove
the cylinder.
NOTE: This cylinder has no valves.
REFIT
- Follow the removal operations in reverse order.
- Purge the compensation/tilting circuit by repeating steps I to
VII several times (I & II, 070  59), (III & IV, 070  62), (V & VI, 070  61),
(VII, 070  60).
70 - 52
3 m
(118.11 in)
II
70 - 53
TO ITS FULL
EXTENT
I
70 - 54
1 cm (0.39 in)
III
70 - 55
1
70 - 56
1