[2] TREADS ADJUSTMENT

WARNING

To avoid personal injury or death:

•When working on slopes or working with trailer, set the wheel tread as wide as practice for the job for maximum stability.

•Support tractor securely on stands before removing a wheel.

•Do not work under any hydraulically supported devices. They can settle, suddenly leak down, or be accidentally lowered. If necessary to work under tractor or any machine elements for servicing or adjustment, securely support them with stands or suitable blocking beforehand.

•Never operate tractor with a loose rim, wheel, or axle.

(1) Front Wheel

Front tread can not be adjusted.

IMPORTANT

•Do not turn front discs to obtain wider tread.

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•When re-fitting or adjusting a wheel, tighten the bolts to the following torques then recheck after driving the tractor 200 m (200 yards) and 10 times of shuttle movement by 5 m (5 yards), and thereafter according to service interval. (See page G-13.)

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(2) Rear Wheels

Rear tread width can be adjusted with the tires listed below.

To change the tread width

1.Remove the wheel rim and / or disk mounting bolts.

2.Change the position of the rim and / or disk (right and left) to the desired position, and tighten the bolts.

IMPORTANT

•Always attach wheels as shown in the drawings.

•If not attached as illustrated, transmission parts may be damaged.

•When re-fitting or adjusting a wheel, tighten the bolts to the following torques then recheck after driving the tractor 200 m (200 yards) and 10 times of shuttle movement by 5 m (5 yards), and thereafter according to service interval. (See page G-13.)

15-19.5 Industry13.6-16

11.2-24

[3] TIRE LIQUID INJECTION

Auxiliary weights can be used to increase traction force for plowing in fields or clayey ground. Another way is to inject water or another liquid, such as a calcium chloride solution in the tires. Water must not be used in winter since it freezes at 0 °C (32 °F). The calcium chloride solution will not freeze and moreover, affords higher effect than water since its specific gravity is higher than that of water by about 20 %. Below is an explanation of calcium chloride solution injection.

Important

•Do not fill the front tires with liquid.

Preparation of Calcium Chloride Solution

Caution

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•When making a calcium chloride solution, do not pour water over calcium chloride since this results in chemical reaction which will cause high temperature. Instead add a small amount of calcium chloride to the water at a time until the desired solution is achieved.

Freezing temp. Weight of CaCl2 to be dissolved in 100 L (26.4 U.S.gals, 22.0 Imp.gals) of water

5 °C (23 °F)12.0 kg (26.5 lbs)

10 °C (14 °F)21.0 kg (46.3 lbs)

15 °C (5 °F)28.0 kg (61.7 lbs)

20 °C ( 4 °F)34.0 kg (75.0 lbs)

25 °C ( 13 °F)40.0 kg (88.2 lbs)

30 °C ( 22 °F)44.0 kg (97.0 lbs)

35 °C ( 31 °F)49.0 kg (108 lbs)

40 °C ( 40 °F)52.0 kg (115 lbs)

45 °C ( 49 °F)56.0 kg (123 lbs)

50 °C ( 58 °F)61.0 kg (134 lbs)

(a)Water (b)CaCl2 (Calcium Chloride) A:Bad B:Good

Attaching Injector

1.Lift the rear tires off the ground.

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2.Turn the tire so that the air valve is at the top.

3.Remove the air valve, and attach the injector. (Code No. 07916-52501)

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Injection

Caution

•When a calcium chloride solution is used, cool it before pouring it into the tire.

•Do not fill tires with water or solution more than 75 % of full capacity (to the valve stem level).

The following four ways can be used to inject water or a calcium chloride solution into tires.

1.Gravity injection (Fig. 1)

2.Pump injection (Fig. 2)

3.Pressure tank injection (Fig. 3)

4.Injection directly from tap (only when water is being used).

Note

•Once injection is completed, reset the air valve, and pump air into the tire to the specified pressure.

Weight of Calcium Chloride Solution Filling 75 % of Full Capacity of a Tire.

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Draining Water or Solution

1.Lift the rear tires off the ground.

2.Turn the tire so that the air valve is at the bottom.

3.Remove the air valve, and drain liquid (liquid can only be drained to the level of the valve and liquid under that level remains inside).

4.To drain liquid completely, use the injector, and direct compressed air into the tire to force out the liquid through the injector's vent.