OP000599
4-61
Inspection, Maintenance and Adjustment
BOLT AND NUT INSPECTION
Inspect ALL fasteners after the first 50 hours of operation and
every 250 hours thereafter. If any are loose or are missing
tighten them or install new hardware. Always use a calibrated
torque wrench.
.
IMPORTANT
Always clean fasteners before tightening.
If counterweight is loose, contact a
DOOSAN
distributor or
sales agent.
NO.
POINT TO BE INSPECTED
BOLT
DIA. MM
QTY.
BOLT
HEAD
SIZE
TORQUE
kg•m
Nm
ft lb
1
Joint bolt with engine
mounting bracket and
engine
pump side
16
8
24
27
264
195
fan side
10
8
17
6.5
64
47
2
Joint bolt and nut
between engine mount-
ing bracket and frame
pump side
20
2
30
46
451
333
fan side
20
2
30
46
451
333
3
Radiator mounting bolt
16
4
24
27
264
195
4
Tightening bolt for hydraulic oil tank
16
4
24
27
264
195
5
Tightening bolt for fuel tank
16
4
24
27
264
195
6
Tightening bolt for pump
10
12
17
6.5
64
47
7
Tightening bolt for control valve
16
4
24
27
264
195
8
Tightening bolt for swing reduction device
16
9
24
27
264
195
9
Tightening bolt for swing motor
12
10
10 (S)
11
108
80
10
Tightening bolt for battery
10
2
17
6.5
64
47
11
Joint bolt with cabin mounting rubber and
frame
10
16
17
6.5
64
47
Joint bolt with cabin mounting rubber and
cabin
16
4
24
21
205
152
12
Joint bolt with swing bearing and upper
frame
20
36
30
55
539
398
Joint bolt with swing bearing and bottom
frame
20
36
30
55
539
398
13
Tightening bolt for travel device
16
40
24
30
294
217
Tightening bolt for sprocket
16
30
24
30
294
217
14
Tightening bolt for upper roller
20
2
30
55
539
398
15
Tightening bolt for bottom roller
16
56
24
27
264
195
16
Tightening bolt for track guard
16
8
24
27
264
195
17
Bolt for track shoes
16
368
24
39
382
282
18
Tightening bolt for front pin
16
10
24
27
264
195
19
Breaker Filter (Optional)
1
30
27
264
195
20
Grease valve for track adjuster
PF 1/2
2
27
14
137
101
Summary of Contents for DX140LC
Page 2: ......
Page 67: ...OP000597 2 3 Operating Controls ...
Page 87: ...OP000597 2 23 Operating Controls ...
Page 122: ...OP000597 Operating Controls 2 58 CD Player Optional AST DIR FG000109 Figure 123 ...
Page 184: ...OP000598 Operation 3 48 ...
Page 193: ...OP000599 4 9 Inspection Maintenance and Adjustment ...
Page 272: ...OP000599 Inspection Maintenance and Adjustment 4 88 ...
Page 278: ...OP000600 Transportation 5 6 ...
Page 284: ...OP000013 Troubleshooting 6 6 ...
Page 292: ...OP000601 Specification 7 8 ...