5-S12
BX1800 · BX2200, WSM
HYDRAULIC SYSTEM
Hydraulic Piston
1. Inject the compressed air into the hydraulic cylinder, and take out
the hydraulic piston (1).
(When reassembling)
• Take care not to damage the O-ring (3) and backup ring (2).
• Apply transmission fluid to the O-ring.
• Replace the O-ring if it is defective, worn or scratched, which may
case oil leakage.
W1015387
Lowering Speed Adjusting Valve
1. Remove the internal snap ring (4) and the remove the lowering
speed adjusting shaft (5).
2. Remove the ball (2) and spring (1).
(When reassembling)
• Take care not to damage the O-rings.
W1015612
(3) Servicing
(A) Hydraulic Pump
Clearance between Tip of Gear Tooth and Casing
1. Measure the gear O.D. with an outside micrometer.
2. Measure the casing I.D. with a cylinder gauge.
3. If the clearance exceeds the allowable limit, replace the
assembly.
W1015764
(1) Hydraulic Piston
(2) Backup Ring
(3) O-ring
(1) Spring
(2) Ball
(3) Stopper
(4) Internal Snap Ring
(5) Lowering Speed Adjusting Shaft
Clearance between tip
of gear tooth and casing
Allowable limit
0.15 mm
0.0059 in.
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