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Boom Cylinder
from Daewoo Doosan 430 440 Plus 450 460 Series Hydraulic & Hydrostatic Systems Skid Steer Loader Service
Boom Cylinder of 430 Series and 450 Series
IGAT140l
1. Place the boom cylinder in a vice and remove the rod cover (3).
2. Remove rod assembly (2) from the cylinder assembly.
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. 6. Remove the bushing (17) from the knuckle and head cover.
7. Assemble the boom cylinder in the reverse order of disassembly.
Boom Cylinder of 440 Plus & 460 Series
IGAT140l
1. Place the boom cylinder in a vice and remove the rod cover (3).
2. Remove rod assembly (2) from the cylinder assembly.
3. Remove socket bolt (16), hard washer (15), piston (10) and rod cover (3) from the rod assembly.
4. Remove O-ring (11), wear ring (13), slipper seal (12) and wear ring (14) 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. 6. Remove the bushing (17) from the knuckle and head cover.
7. Assemble the boom cylinder in the reverse order of disassembly.
