Sprocket Shaft

(4) Using a spanner wrench, remove the

retaining nut (2).

(5) Remove sprocket shaft.

1 Lockring

2 Retaining nut and winch removed

Figure 6-135. Removing retaining nut.

b. Inspection. Inspect the sprocket shaft for

dam age and distortion. Shaft must be straight

within 0.12 inch. Replace a defective sprocket

shaft.

1 Roller assembly

c. Installation.

2 Dowel

(1) Attach a hoist to sprocket shaft and

Figure 6-134. Removing outer race and roller assembly.

position it for installation.

(16) Inspect hub inner bearing cup (4).

(2) Position sprocket shaft retaining nut and

(17) Replace cup (4) if necessary.

lockring.

NOTE

(3) Instert sprocket shaft in the steering clutch

If the teeth of the final drive gears and pinions are

and bevel gear case far enough to install the

worn considerably more on one face than on the other,

sprocket shaft retaining nut and lockring.

they can be switched from one side of the tractor to the

(4) Place the retaining nut and lockring on the

other. This will provide a longer service life for the

shaft and install the sprocket shaft as far as possible

gears and pinions, by wearing both faces of the teeth.

into the steering clutch case.

b. Installation. Install final drive gear, idler

(5) Install adapter (3, fig. 6-136) plug (1), and

pinion and bearings in the reverse order of removal.

coupling pin (2) as shown.

NOTE

(6) Press the sprocket shaft into the steering

Heat the bearing races in oil at installation.

clutch and bevel gear case with a pressure of 55-60

6-26. Sprocket Shaft

tons. Press until dimensions (A or B, fig. 6-137) is

attained.

a. Removal.

(1) Remove final drive gear (para 6-25).

(2) Remove the locking (1, fig. 6-135).

( 3 ) Remove the pin securing sprocket

retaining nut (2) to the sprocket shaft.

6-109