Tread Settings—Multi-Position Rear Wheels

Wheel tread on rear axle with multi-position wheels can be adjusted by repositioning or exchanging the rims or by reversing the wheel disks.

Wheel tread can also be adjusted by exchanging the complete wheel to the opposite side of the tractor (this maneuver permits the change from disk-dished-in to disk-dished-out operations without disassembling the wheel). When changing rear wheels from one side to the other, the arrow on side wall of tire points in the direction of forward rotation.

The relationship of the wheel disk and rim in obtaining the different tread settings is shown in the diagrams on the facing page.

A study of these diagrams, before attempting to change tread settings, will save unnecessary labor.

IMPORTANT: After setting wheel spacing, tighten rear wheel rim-to-disk bolts and rear wheel disk-to-hub bolts to specification. Drive tractor 100 m (109 yd) and tighten again.

Item	Measurement	Specification
Rear Rim to Disk (18.4-30, 16.9-30, 16.9-24 and 14.9-24)	Torque	245 N˙m (180 lb-ft)
Rear Rim to Disk (15.5-38 and 13.6-38)	Torque	325 N˙m (240 lb-ft)
Rear Steel Wheel Disk to Hub M20 Bolts	Torque	500 N˙m (370 lb-ft)

MULTI-POSITION REAR WHEELS TREAD WIDTH Centerline-to-Centerline
Tire	Diagram
	A	B	C	D	E	F	G	H
16.9-30, 6PR, R1	INT1	INT1	INT1	INT1	1515 mm (60 in)	1619 mm (64 in)	1715 mm (68 in)	1819 mm (72 in)
18.4-30, 8PR, R1	INT1	INT1	INT1	INT1	INT1	1619 mm (64 in)	1715 mm (68 in)	1819 mm (72 in)
18.4-30, 8PR, R2	INT1	INT1	INT1	INT1	INT1	1619 mm (64 in)	1715 mm (68 in)	1819 mm (72 in)
14.9-38, 6PR, R1	INT1	INT1	INT1	INT1	1515 mm (60 in)	1619 mm (64 in)	1715 mm (68 in)	1819 mm (72 in)
13.6-38, 6PR, R1	INT1	INT1	INT1	1419 mm (56 in)	1515 mm (60 in)	1619 mm (64 in)	1715 mm (68 in)	1819 mm (72 in)
15.5-38, 8PR, R1	INT1	INT1	INT1	INT1	1515 mm (60 in)	1619 mm (64 in)	1715 mm (68 in)	1819 mm (72 in)

MULTI-POSITION REAR HIGH CLEARANCE WHEELS TREAD WIDTH Centerline-to-Centerline
	Diagram
Tire	A	B	C	D	E	F	G	H
13.6-38, 6 PR, R2	INT1	1400 mm (55.1 in.)	1498 mm (59.0 in.)	1600 mm (63.0 in.)	1698 mm (66.9 in.)	1800 mm (70.9 in.)	1898 mm (74.7 in.)	2000 mm (78.7 in.)

LV8610-UN-28AUG03