MFWD Wheel Bolt Tightening
CAUTION:
Avoid the possibility of personal injury. Never operate tractor with loose wheel bolts or axle components. Wheel bolts are critical and require retightening.
NOTE:
Both inner and outer bolt patterns of disk have one
tight fit
hole and one
slot fit
hole 180° apart.
The tight fit and slot fit holes are
not
found on 24 in. and 26 in. 10-bolt rims or on 26 in. 8-bolt rims.
Wheel Disk to Rim:
Install bolt in
tight fit
hole (A) and hand tighten bolt. Install bolt in
slot fit
hole (B) and hand tighten bolt. Install and hand tighten remaining wheel disk-to-rim bolts. Tighten all bolts:
Specification
Wheel Disk-to-Rim
-Torque
|
310 N·m (230 lb-ft)
|
Drive tractor 100 meters (100 yd) and retighten bolts. Tighten again at
3 HOURS
and
10 HOURS
.
Wheel Disk to Hub:
Hand tighten fastener to
tight fit
hole (C). Hand tighten fastener to
slot fit
hole (D). Install and hand tighten remaining wheel disk-to-hub cap screws. Tighten all fasteners:
Specification
Wheel Disk-to-Hub-
Hi-Crop Axle
1
-Torque
|
600 N·m (445 lb-ft)
|
Wheel Disk-to-Hub-
7220, 7320 Axle
-Torque
|
300 N·m (220 lb-ft)
|
Wheel Disk-to-Hub-
7420, 7520 Axle
-Torque
|
480 N·m (355 lb-ft)
|
Drive tractor 100 m (100 yd) and retighten bolts. Tighten again at
3 HOURS
and
10 HOURS.
|