Operation Manual

BX25, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601, WSM
BACKHOE
Clearance between Pin and Bushing (continued)
(2). (3). (4)
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Clea""'" Faok"'1 ""
Boom cylinder
rod pi 0.060 to 0.185 mm
and cylinder bushing 0.002 to 0.007 in.
Allowable limit
(1 )
1.0mm
0.0394 in.
{2}
Dipperstick fulcrum pin
and bushing
0.140 to 0.180
mm
0.006 to 0.007 in.
1.0mm
0.0394 in.
(3)
Dipperstick cylinder rod
pin and cylinder
bushing
0.060 to 0.185
mm
0.002
to 0.007 in.
1.0mm
0.0394 in.
(4)
Bucket cylinder rod pin
I
Guide link
pin I Bucket
fulcrum
pin I Bucket link
pin and bushing
0.204 to 0.315
mm
0.008 to 0.012 in.
1.0mm
0.0394 in.
(5)
Boom support
pin and
bushing
0.140 to 0.180
mm
0.006 to 0.007 in.
1.0mm
0.0394 in.
(6)
Main frame fulcrum pin
and bushing
0.070 to 0.130
mm
0.003 to 0.005 in.
0.5mm
0.0197 in.
(7)
Swing cylinder
rod pin
and cylinder bushing
0.108 to 0.259
mm
0.004 to 0.010 in.
1.0mm
0.0394 in.
W1024653
Thrust VVasher VVear
1. Measure the thickness of thrust washer with an outside
micrometer.
2. If the wear exceeds the allowable limit, replace it.
• NOTE
• Visually inspect the thrust washer for signs
of scoring or
damage not only on the thrust washer but also on the main
frame and swing frame contact surface.
Factory spec.
2.66mm
0.1046 in.
Thrust washer thickness
Allowable limit
1.8mm
0.0709 in.
W1025818
Piston Rod Bend
1. Place piston rod on V blocks.
2. Set a dial indicator on the center of the rod.
3. Tum the piston rod and read the dial indicator.
4. If the measurement exceeds the allowable limit, replace it.
0.25mm
Piston rod bend
wable limit
0.0098 in.
W1026026
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9-S24