Gradall G6-42P (91404003_Before 0160004017) Operation Manual - Manual (Page 43)

Form No. 20027 • G6-42P Owner/Operator Manual
TORQUE CHART 18.0
TORQUE (lubricated)
ITEM FREQUENCY* THREAD SIZE FT.-LB. Nm
(GRADE) MINIMUM MAXIMUM MINIMUM MAXIMUM
Boom Slide Bearings (front) 5 Weeks (250 hrs) 3/8-24 (5) 32 37 43 50
5 Weeks (250 hrs) 1/2-20 (5) 76 86 103 116
Boom Slide Bearings (rear) If front bearings have 3/8-24 (5) 32 37 43 50
worked loose 1/2-20 76 86 103 117
Boom Chain Jam Nuts Annually (1500 hrs) 7/8-14 100 125 136 169
Cab Mounting Bolts (upper) 7/8-9 530 565 719 766
(lower) 3/4-10 340 365 461 495
Engine Assembly
Flywheel Housing Bolts
Annually (1500 hrs) M10 38 48 52 65
Flexplate Mounting Bolts Annually (1500 hrs) 3/8-16 40 45 54 61
Hydrostatic Trans Bolts Annually (1500 hrs) 3/4-10 (5) 240 265 325 359
Engine Mounts Annually (1500 hrs) M12 66 76 89 103
M16 166 181 225 245
Front Axle Motor to Axle Bolts Annually (1500 hrs) M20 324 349 439 473
Rear Axle
Hub Assembly Mntg Bolts
Annually (1500 hrs) 3/4-10 270 290 366 393
Steering Cylinder Rod to
Knuckle Mntg Pin (Bottom)
6 Months (1000 hrs) 1 1/4-12 280 305 380 414
Wheel Lug Nuts 3 Months (500 hrs) - 350 400 474 542
* Check torque at whichever interval occurs first.
The preceeding bolt torque chart covering English and
Metric fasteners are used by Gradall engineering. Gradall
ratings are for lubricated fasteners. Do not exceed the
allowable rating. An over-torqued bolt in most cases will
fail as rapidly as an under-torqued bolt.
CAUTION !
To check GRADALL torque values, set the torque wrench at 95% of rated torque value and check fastener. If the
torque wrench releases before the fastener moves, assume fastener torque is correct. When setting GRADALL
torque values, use the values given on the following chart. Do not exceed allowances.