Komatsu WA250PZ-6 User Manual

SEN03831-00
WA250, 250PZ-6 10-700 3
700 Work equipment
Work equipment linkage
1. Bucket
2. Bell crank
3. Bucket cylinder
4. Lift cylinder
5. Lift arm
6. Bucket link
Unit: mm
No. Check item Criteria Remedy
7
Clearance between bushing and pin
at each end of bucket link
Standard
size
Tolerance
Standard
clearance
Clearance
limit
Replace
(Replace pin when
it has scuff marks,
too.)
Shaft Hole
75
–0.030
–0.076
+0.174
+0.100
0.130 –
0.250
1.0
8
Clearance between bushing and pin
connecting lift arm and bucket
75
–0.030
–0.076
+0.174
+0.100
0.130 –
0.250
1.0
9
Clearance between bushing and pin
connecting lift arm and frame
75
–0.030
–0.076
+0.174
+0.100
0.130 –
0.250
1.0
10
Clearance between bushing and pin
connecting bucket cylinder bottom
and frame
85
–0.036
–0.090
+0.207
+0.120
0.156 –
0.297
1.0
11
Clearance between bushing and pin
connecting bucket cylinder rod and
bell crank
85
–0.036
–0.090
+0.207
+0.120
0.156 –
0.297
1.0
12
Clearance between bushing and pin
connecting bell crank and lift arm
85
–0.036
–0.090
+0.207
+0.120
0.156 –
0.297
1.0
13
Clearance between bushing and pin
connecting lift cylinder rod and lift
arm
75
–0.030
–0.076
+0.174
+0.100
0.130 –
0.250
1.0
14
Clearance between bushing and pin
connecting lift cylinder bottom and
frame
70
–0.030
–0.076
+0.174
+0.100
0.130 –
0.250
1.0
15
Connecting part of bucket cylinder
and frame
Width of boss Width of hinge
Standard
clearance
Adjust shim so that
clearance will be
below 1.5 mm on
each side
Standard
size
Tolerance
Standard
size
Tolerance
90
+0.8
0
93 ±1.5 0.7 – 4.5
16
Connecting part of lift
arm and frame
Left side 108 — 116 ±1.5 6.5 – 9.5
Right side 108 — 111 ±1.5 1.5 – 4.5
17
Connecting part of lift arm and
bucket
86 — 88
+3.0
0
2.0 – 5.0
18
Connecting part of bucket link and
bucket
85 ±1.0 88
+3.0
0
2.0 – 7.0
19
Connecting part of lift cylinder and
frame
94
0
–0.5
98 ±1.5 2.5 – 6.0
20
Connecting part of bell crank and
bucket link
85 ±1.0 93 ±1.5 5.5 – 10.5
21
Connecting part of bell crank and lift
arm
161 ±1.5 164 ±1.5 0 – 6.0
22
Connecting part of bucket cylinder
and bell crank
90
+0.8
0
93 ±1.5 0.7 – 4.5 Replace
23
Connecting part of lift arm and lift
cylinder
86 — 88 ±1.5 0.5 – 3.5
Adjust shim so that
clearance will be
below 1.5 mm on
each side

Komatsu WA250PZ-6 Specifications

General

Brand	Komatsu
Model	WA250PZ-6
Category	Construction Equipment
Language	English