OP000471
Inspection, Maintenance and Adjustment
4-40
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.
.
NOTE:
At installation, remove rust, sand, dirt and dust.
At installation, lubricate to reduce abrasion.
Apply Loctite to lower roller mounting bolts.
The top 2 notes above are not keyed to anything
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
Nm
kg•m
ft lb
1
Engine vibration dampening bolts
12
4
19
73.5
7.5
54
2
Engine bracket
Bolt
10
4
17
63.7
6.5
47
Nut
10 (2)
4
17
3
Hydraulic and fuel tank mounting bolts
10
8
17
42.2
4.3
31
4
Hydraulic hose and pipe joint
PF1/4
26.5-29.4
2.7-3.0
20-22
PF3/8
46-51
4.7-5.2
34-38
PF1/2
56-62
5.7-6.3
41-46
5
Pump mounting bolt
12
2
19
112.8
11.5
83
6
Control valve mounting bolt
8
4
13
21.6
2.2
16
7
Control valve base mounting bolt
10
4
17
42.2
4.3
31
8
Swivel mounting bolt
14
4
22
176.5
18
130
9
Canopy mounting bolt
12
5
19
112.8
11.5
83
10
Cabin mounting bolt
12
5
19
112.8
11.5
83
11
Cabin stopper bolt
16
4
24
269.7
27.5
199
12
Swivel bearing mount-
ing bolt
swiveling body
12
16
19
112.8
11.5
83
track
12
16
19
112.8
11.5
83
13
Traveling body mounting bolt
12
18
19
112.8
11.5
83
14
Sprocket mounting bolt
12
18
19
112.8
11.5
83
15
Lower roller mounting bolt
20
12
30
338
34.5
249
16
Cover mounting bolt
8
28
13
21.6
2.2
16
17
Counterweight mounting bolt
20
3
30
539
55
397
Summary of Contents for DX35Z
Page 2: ......
Page 6: ...Table of Contents K1025196E IV Index 8 1 ...
Page 60: ...OP000468 Safety 1 54 ...
Page 90: ...OP000469 Operating Controls 2 30 ...
Page 132: ...OP000470 Operation 3 42 ...
