Case 570NXT, Руководство оператора, Страница: 178 / 280

7 - MAINTENANCE
Wheel nut and bolt torque
Check the torque of the wheel nuts and bolts at the first 10 hours of operation whenever a wheel is removed or for
a new machine. If the nuts and bolts are loose, tighten and check after an additional 10 hours of operation. Repeat
until the nuts and bolts remain tight.
Rear wheels
Specification: 305 N·m ( 225 lb ft )
NOTICE: Tighten nuts in a crossing pattern (sequence), as
shown.
Rear wheel:
1. Tighten the ten mounting nuts in sequence until
the wheel is snug again the axle hub.
2. Tighten the nuts in sequence to a torque of 136
N·m ( 100 lb ft ).
3. Tighten the nuts a second time, in sequence,
to a torque of
271 N·m ( 200 lb ft ).
4. Turn the nuts in sequence an additional 30 ° to
set the preload.
RCPH10TLB075AAF
1
Front wheels
Specification:
•
Two Wheel Drive (2WD) — 156 - 203 N·m ( 115
- 150 lb ft )
•
Four Wheel Drive (4WD) — 251 N·m ( 185 lb
ft )
NOTICE: Tighten nuts in a crossing pattern (sequence), as
shown.
Front wheel (2WD):
1. Tighten the eight mounting nuts in sequence
until the wheel is snug again the axle hub.
2. Tighten the nuts in sequence to a torque range
of
156 - 203 N·m ( 115 - 150 lb ft ) .
Front wheel (4WD):
1. Tighten the eight mounting nuts in sequence
until the wheel is snug again the axle hub.
2. Tighten the nuts in sequence to a torque of 122
N·m ( 90 lb ft ).
3. Turn the nuts in sequence an additional 43 ° to
set the preload.
RCPH10TLB074AAF
2
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