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BX25. RCK54(P)-23BX. RCK60B-23BX. LA240. BT601, WSM
BACKHOE
(3)
3UFAAABLP035A
(2) Boom, Dipperstick, Bucket, Swing and Stabilizer Cylinder
Cylinder Rod Assembly
1.
Drain hydraulic oil from the cylinder, and secure the tube end of
the cylinder in a vise.
2. Unscrew the cylinder head (1) with the adjustable gland nut
wrench (4).
3. Pull out the piston rod assembly (2) from the cylinder tube (3).
(When reassembling)
Visually inspect the cylinder tube for signs
of
scoring or damage.
Insert the piston rod assembly to the cylinder tube, using care not
to damage the piston seal
on
the piston.
Install the cylinder head
to
the cylinder tube, using care not to
damage the O-ring
on
the cylinder head.
Tightening torque
Boom cylinder head 350 to 400
N'm
35.7 to 40.7 kgf·m
259
to 295 ft-Ibs
Dipperstick cylinder.
stabilizer cylinder head
250 to 280
N'm
25.5 to 28.5 kgf·m
185 to 206 ft-Ibs
Bucket cylinder head 200 to 230
N'm
20.4 to 23.4 kgf·m
148
to 169 ft-Ibs
Swing cylinder head
246
to 274
N'm
25.0 to 28.0 kgf·m
181 to 202 ft-Ibs
(4)
3UFAAABLP036A
(1
)
(2)
II
L
(1) Cylinder Head (3) Cylinder Tube
(2) Piston Rod Assembly (4) Adjustable Gland
Nut
Wrench
W1021758
Cylinder Head. Piston and Nut
1.
Secure the rod end
in
a vise.
2. Unscrew the nut (4), and remove the piston (3) and cylinder head
(2) from the piston rod (1).
(When reassembling)
Visually inspect all parts for signs
of
scoring or damage.
Insert the piston rod to the cylinder head, using care not to
damage the wiper seal (5) and oil seal (6).
3UFAAABLP037 A
Tightening torque
Boom cylinder piston
mounting
nut
200 to 230
N'm
20.4 to 23.4 kgf'm
148 to 169 ft-Ibs
Dipperstick cylinder,
bucket cylinder, stabilizer
cylinder, piston mounting
nut
150 to 180
N'm
15.3 to 18.3 kgf-m
111
to 132 ft-Ibs
Swing cylinder piston
mounting nut
216 to 245
N'm
22.0 to 25.0 kgf·m
159 to
181
ft-Ibs
(1) Piston Rod (5) Wiper Seal
(2) Cylinder Head (6) Oil Seal
(3) Piston (7) O-ring
3UFAAABLP038A (4) Nut
W1021908
(5) (6) (7)
9-S20
444


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