4 — MAINTENANCE
4-7
Hydraulic Cylinder Repair
Cylinder Removal and Installation
1. Lower boom onto travel supports, turn off the main power switch, and remove
the PLATFORM/OFF/GROUND key.
2. Support lift cylinder with wood shoring between cylinder and boom. Secure both
ends of lower boom lift cylinder with lifting straps and overhead lifting device.
Support upper boom lift cylinder with padded lift truck forks.
3. Place absorbent drip cloths below cylinder ports. Remove hydraulic hoses from
lift cylinder. Elevate hoses above hydraulic reservoir and protect exposed hose
fittings and cylinder ports with protective caps.
4. Refer to Figure 4-5. Remove screws (1), lock washers (2), and locking plate (3)
from elevated end of cylinder (6).
3
2
1
4
5
5
6
5
5
4
3
2
1
Figure 4-5. Hydraulic Cylinder Removal
1. Screws 4. Pivot Pin
2. Lock Washers 5. Spacer
3. Locking Plate 6. Cylinder
