Komatsu PC88MR-10 Shop Manual page 1311

No. Item
Boom
Clearance
swing
between
1
bracket
mounting pin
side
and bushing of
Revol-
revolving frame
ving
and boom
2
frame
swing bracket.
side
Clearance
between
Boom
mounting pin
swing
3 and bushing of
bracket
boom swing
side
bracket and
boom
Inside diameter of
bushing insertion portion
on boom swing bracket
4
side in joint of boom
swing bracket and boom
Clearance
between
mounting pin
Boom
5 and bushing of
side
boom swing
bracket and
boom
Inside diameter of
bushing insertion portion
6 on boom side in joint of
boom swing bracket and
boom
Clearance between
7 mounting pin and bushing
of boom and arm
Inside diameter of hole to
insert bushing on arm
8
side at joint of boom and
arm
Clearance between
9 mounting pin and bushing
of arm and bucket
Inside diameter of hole to
insert bushing on arm
10
side at joint of arm and
bucket
Clearance between
11 mounting pin and bushing
of arm and link
Inside diameter of hole to
insert bushing on arm
12
side at joint of arm and
link
Clearance between
13 mounting pin and bushing
of link and bucket
PC88MR-10
Tolerance
Standard
dimension
Shaft
-0.043
140
-0.106
-0.043
140
-0.106
-0.030
65
-0.100
-
75
-0.030
65
-0.100
-
80
-0.030
60
-0.100
-
75
-0.225
50
-0.285
-
65
-0.225
50
-0.285
-
65
-0.225
50
-0.285
60 Maintenance standard
Criteria
Allowable
Standard
clearance clearance Replace pin
Hole
+0.063
0.043 to
0.169
0
+0.134
0.094 to
0.240
+0.051
+0.100
0.030 to
0.200
0
+0.03
-
0
+0.174
0.130 to
0.274
+0.100
+0.03
-
0
+0.174
0.130 to
0.274
+0.100
+0.03
-
0
-0.062
0.105 to
0.223
-0.120
-0.03
-
-0.06
-0.062
0.105 to
0.223
-0.120
-0.03
-
-0.06
-0.040
0.131 to
0.245
-0.094
Work equipment
Unit: mm
Remedy
and bushing
1.0
Replace pin
1.0
and bushing
Replace pin
1.0
and bushing
Build up by
-
welding, then
work
Replace pin
1.0
and bushing
Build up by
-
welding, then
work
Replace pin
1.0
and bushing
Build up by
-
welding, then
work
Replace pin
1.0
and bushing
Build up by
-
welding, then
work
Replace pin
1.0
and bushing
Build up by
-
welding, then
work
Replace pin
1.0
and bushing
60-59