
1.2 BOOM MAINTENANCE STANDARD
(1) Clearance of pin and bushing
on boom section
Standard value
Clearance
Sym
-bol
Item
Pin
dia.
Pin dia.
tolerance
Bushing
i.d.
tolerance
Standard
value
Repairable
level
Service
limit
Remedy
A Boom foot
0
(0)
-
0.030
(
-
0.0012)
+0.231
(+0.0091)
+0.160
(+0.0063)
+0.291
(+0.0115)
+0.160
(+0.0063)
B
Boom cylinder
(Head side)
∅
70
(2.7559)
+0.030
(+0.0012)
0
(0)
+0.180
(+0.0071)
+0.070
(+0.0028)
C
Boom cylinder
(Rod side)
∅
80
(3.1496)
+0.030
(+0.0012)
0
(0)
+0.180
(+0.0071)
+0.070
(+0.0028)
D
Arm cylinder
(Head side)
∅
70
(2.7559)
+0.030
(+0.0012)
0
(0)
+0.180
(+0.0071)
+0.100
(+0.0039)
+0.180
(+0.0071)
+0.070
(+0.0028)
More than
1.2
(0.05)
2.0
(0.08)
Replace
bushing
or pin
Standard value
Clearance
Sym
-bol
Item
Pin
dia.
Pin dia.
tolerance
Bushing
i.d.
tolerance
Standard
value
Repairable
level
Service
limit
Remedy
A Boom foot
0
(0)
-
0.030
(
-
0.0012)
+0.231
(+0.0091)
+0.160
(+0.0063)
+0.261
(+0.0103)
+0.160
(+0.0063)
B
Boom cylinder
(Head side)
∅
70
(2.7559)
+0.030
(+0.0012)
0
(0)
+0.180
(+0.0071)
+0.070
(+0.0028)
C
Boom cylinder
(Rod side)
∅
75
(2.9528)
+0.030
(+0.0012)
0
(0)
+0.180
(+0.0071)
+0.070
(+0.0028)
D
Arm cylinder
(Head side)
∅
70
(2.7559)
+0.030
(+0.0012)
0
(0)
+0.180
(+0.0071)
+0.100
(+0.0039)
+0.180
(+0.0071)
+0.070
(+0.0028)
More than
1.2
(0.05)
2.0
(0.08)
Replace
bushing
or pin
3-2
D
C
B
A
Fig. 1-2
Clearance of pin and bushing on boom section
1)
E135SR L E135SR LC
Table 1-2 (1/2) Unit : mm (in)
2)
E115SR
Table 1-2 (2/2) Unit : mm (in)
Summary of Contents for E115SR
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