Manitou AETJ 43 - Arm 1;2 Lifting Cylinder - Removal

61
HYDRAULIC
70
547379EN
70 (08/03/2017)
ARM 1/2 LIFTING CYLINDER  REMOVAL
- Raise arm 1/2 so that the intermediate hinge (1, 070  46) is raised
1m (39.37 in).
- Switch o the power supply.
- Secure the intermediate hinge with a hoist and a sling (2, 070  46):
3 - 120 AETJL: 1100 kg (2425 lbs)
3 - 150 AETJC - 150 AETJL - AETJ43 - AETJ 43 3D : 1600 kg (3527 lbs)
3 - 170 AETJL - AETJ 49: 1700 kg (3748 lbs)
- Open the right-hand turret cover.
- Decompress the arm 1/2 lifting line (distributor) (6 70.3.10
DISTRIBUTOR  REMOVAL, 5 57)
- Remove and plug the hoses connected to the cylinder (1, 070  47).
- Remove the pivot pins from the cylinder, starting with the cylinder
head pin (2, 070  47) and remove the cylinder:
3 - 120 AETJL : 25 kg (55 lbs)
3 - 150 AETJC - 150 AETJL - 150 AETJC 3D - 150 AETJL - AETJ43 -
AETJ 43 3D - 170 AETJL - AETJ 49: 70 kg (154 lbs)
NOTE: Before attempting to disassemble the removed cylinder
(6VALVE BLOCKS AND VALVES  REMOVAL, 5 69)
REFIT
- Carry out the removal operations in reverse order, leaving the
intermediate hinge supported by a strap.
- Slowly lower the intermediate hinge until the arms find their
equilibrium position.
- Remove the strap.
- Lower arms 1/2 to the transport position.
- Raise arms 1/2 to their maximum extent and repeat these operations
several times.
70 - 46
1
2
70 - 47
2
1