Adjusting Tread of Rear Wheels with Reversible Rims

The tread on rear wheels with multiple positions can be adjusted repositioning or changing the rims, inverting the wheel disks.

The tread can also be adjusted switching the whole wheel to the opposite side of the tractor. (This maneuver allows a concave to convex wheel position change without having to disassemble them). When changing rear wheels from one side to other, the arrow on side of tire must be pointing in the direction of forward travel.

The relation between wheel disk and rim according to required treads is illustrated on the following page. Carefully study diagrams before changing tread as this will reduce effort when performing this task.

IMPORTANT: After adjusting space between rear wheels, tighten bolts between disk and rim and between disk and hub. Drive tractor about 100 m (398 ft 96 in.) and retighten to specification.

Specification

Rim to disk -Torque 245 N·m (180 lb-ft)
Disk to hub -Torque 180 N·m (130 lb-ft)

NOTE: Tread adjustment is measured at the lower part of the center line.

Steel rim
Tire size
16.9-30
18.4-30
   
   
Diagram  
A1 Not available
B1 Not available
C1 Not available
D1 1366 mm (53.8 in.)
E1 1563 mm (61.5 in.)
F1 1665 mm (65.6 in.)
G1 1668 mm (65.7 in.)
H1 1770 mm (69.7 in.)
G1** 1972 mm (77.6 in.)
H1** 2074 mm (81.7 in.)

 

Cast iron disk
Tire Size
16.9-30
18.4-30
   
Diagram  
A2 Not available
B2 Not available
C2 Not available
D2 Not available
E2 1535 mm (60.4 in.)
F2 1634 mm (64.3 in.)
G2 1729 mm (68.1 in.)
H2 1838 mm (72.4 in.)
G2** 1933 mm (76.1 in.)
H2** 2042 mm (80.4 in.)

 

**Requires axle spacers of 102 mm (4.0 in.).

GB52027,0000041 -19-27NOV06-1/2

LV858

GB52027,0000041 -19-27NOV06-2/2