Boom Cylinder of 430 Series and 450 Series
IGAT140l
1. Place the boom cylinder in a vice and remove the rod cover (3).
6. Remove the bushing (17) from the knuckle and head cover.
2. Remove rod assembly (2) from the cylinder assembly.
7. Assemble the boom cylinder in the reverse order of disassembly.
3. Remove spring pin (16), hex nut (15), piston (10) and rod cover (3) from the rod assembly. 4. Remove O-ring (11), dust ring (14), slipper seal (12) and wear ring (13) from the piston. 5. Remove dust wiper (4), back up ring (6), U-packing (5), DU-bush (7), O-ring (8) and back up ring (9) from the rod cover.
Hydraulic & Hydrostatic Systems
47
Disassembly & Assembly
