OPERATOR'S MANUAL MAINTENANCE

Section 3 - Maintenance
Routine Maintenance
Bolt and Nut Torque Specifications
3-47 3-47
9803/JSM-0412
Bolt and Nut Torque Specifications
JS115 - JS360 and Variants
Tighten the bolts and nuts according to the tables below.
Before and after daily work, check the bolts and nuts for
looseness and for those missing. Tighten if loose and
renew if missing.
Tighten the bolts and nuts after the first 50 hours of the
running-in stage and every 250 hours thereafter.
For tightening torques for the bolts and nuts not listed
K
Table 24. ( T 3-55).
Table 17. JS115 and variants
No. Tightening Point Bolt
Diameter
Wrench
mm
Tightening Torque Checking Torque
Nm lbf ft Nm lbf ft
1
(1)
(1) Use JCB Threadlocker and sealer (High Strength) and tighten to the torque listed.
Travel Motor M16 24 290 213 265 195
2
(1)
Drive Sprocket M16 24 290 213 265 195
3
(1)
Idler Wheel M16 24 290 213 265 195
4
(1)
Upper (Carrier) Roller M16/M20 24/30 290/550 213/405 265/515 195/380
5
(1)
Lower (Track) Roller M16 24 290 213 265 195
6
(1)
Track Guard M16 24 290 213 265 195
7 Shoe Bolt M16 24 382-440 282-325 344-396 254-292
8 Counter weight M27 41 925 682 840 620
9
(1)
Turntable Bearing
(Undercarriage)
M16/M20 24/30 296/525 218/387 275/470 203/347
10
(1)
Turntable Bearing (Slew
Frame)
M16/M20 24/30 296/525 218/387 275/470 203/347
11
(1)
Slew Equipment M16/M20 24/30 290/550 213/405 265/515 195/370
12
(1)
Engine (Engine Mount) M16 24 290 213 265 195
13
(1)
Engine Bracket M10/M12 17/19 68/118 50/87 62/107 45/79
14 Radiator M12 19 65 48 60 44
15
(1)
Hydraulic Pump M10 17 68 50 62 45
16
(1)
Hydraulic Oil Tank M16 24 250 184 225 162
17
(1)
Fuel Tank M16 24 250 184 225 162
18
(1)
Control Valve M16 24 290 213 265 195
19 Battery M6 10 7 5 6 4
20
(1)
Rotary Coupling M12 19 116 85 105 80
21 Cab M16 24 132 97 125 92