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Tightening and Retightening Torque of Nuts and
Bolts
--- every 250 hours (50 hours at first time only)
Check tightness after the first 50 hours then every 2000 hours.
The nuts and bolts other than those shown in the table below
shall be tightened in accordance with the torque values shown
in the table on page 7-114.
Tighten or retighten nuts and bolts used on this machine in
accordance with the torque values shown in the following
table.
Check nuts and bolts for looseness and missing daily before
and after operation. If any loose or missing nuts and/or bolts
are found , retighten or supply replacement parts.
1 Front axle mounting bolt
2 Rear axle support mounting bolt
3 Wheel rim mounting bolt
4 Propeller shaft mounting bolt
5 Propeller shaft support bearing mounting bolt
6 Transmission mounting bolt: Bracket
7 Transmission mounting bolt: Cushion rubber
8 Engine mounting bolt: Bracket
9 Engine mounting bolt: Cushion rubber
10 Aftertreatment device mounting nut (Double)
11 Counterweight mounting bolt
12 Top center pin upper flange lock
13 Bottom center pin lock
14 Loader front pin lock
15 Steering cylinder pin lock
16 Radiator frame mounting bolt
17 Radiator mounting bolt
18 Intercooler mounting bolt
19 Oil cooler mounting bolt
20 Torque converter cooler mounting bolt
21 Air conditioner condenser mounting bolt
22 Air conditioner compressor mounting bolt
23 Cab cushion rubber mounting bolt
24 Cutting edge mounting bolt
25 Wear plate mounting bolt
*: LOCTITE #263 is used.
**: The unit of figure is "inch".
MAINTENANCE
Locations
Axle side
Transmission side
7-114
Bolt
Wrench
Quantity
Diameter
Size
24
8
36
24
8
36
24
60
36
12
12
17
**1/2-20
8
3/4 inch
UNF-2A
20
2
30
20
4
30
18
2
27
12
10
19
18
2
27
10
16
17
30
4
46
16
7
24
16
1
24
16
9
24
12
4
19
12
4
19
16
6
24
8
2
12
8
1
12
10
2
17
10
4
17
8
4
13
SOCKET
8
4
6
16
4
24
**1"
12
37.47
**1"
4
37.47
Torque
N·m (lbf·ft)
785±150
(579±11)
890±170
(656±125)
890 (656)
*145 (107)
*145 (107)
206 (152)
*401 (296)
315 (232)
*110 (82)
315 (232)
20 (14.8)
1510 (1114)
*205 (151)
210 (155)
210 (155)
90 (66)
90 (66)
*210 (155)
17.6 (13)
17.6 (13)
36.2 (27)
36.2 (27)
12.5 (9.2)
24.5to29.4
(18to21.7)
*205 (151)
1068 (788)
1068 (788)
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Troubleshooting
