KUBOTA – L2501 – FRONT AXLE – CHECKING AND ADJUSTING – Toe-in

1. Park the tractor on a flat place.
2. Inflate the tires to the specified pressure.
3. Turn steering wheel so front wheels are in the straight ahead position.
4. Lower the implement, lock the parking brake and stop the engine.
5. Measure distance between tire beads at front of tire, hub height.
6. Measure distance between tire beads at rear of tire, hub height.
7. Front distance should be 2 to 8 mm (0.08 to 0.3 in.) less than rear distance.
8. If the measurement is not within the factory specifications, adjust by changing the tie-rod length.

 Adjusting
1. Loosen the tie-rod lock nut (1) and turn the turnbuckle (2) to adjust the tie-lock rod length until the proper toe-in
measurement is obtained.
2. Retighten the tie-rod lock nut (1).

•IMPORTANT
A right and left tie-rod joint should be adjusted to the same length.

 

06. December 2021 by samuel
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KUBOTA – L2501 – FRONT AXLE – TIGHTENING TORQUES

Tightening torques of screws, bolts and nuts on the table below are especially specified.

 

06. December 2021 by samuel
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KUBOTA – L2501 – FRONT AXLE – SERVICING SPECIFICATIONS

 

06. December 2021 by samuel
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KUBOTA – L2501 – FRONT AXLE – TROUBLESHOOTING

06. December 2021 by samuel
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KUBOTA – L2501 – FRONT AXLE – STRUCTURE – 4WD

The front axle of the 4WD is constructed as shown above. Power is transmitted from the transmission through the
propeller shaft (24) and to the spiral bevel pinion shaft (21), then to the spiral bevel gear (5) after that to the differential gear.
The power through the differential is transmitted to the differential yoke shaft (4), and to the bevel gear shaft (15)
in the bevel gear case (1).
The revolution is greatly reduced by the bevel gears (17), (13), then the power is transmitted to the axle (12).
The differential system allows each wheel to rotate at a different speed to make turning easier.

 

06. December 2021 by samuel
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KUBOTA – L2501 – FRONT AXLE – STRUCTURE – 2WD

The front axle of the 2WD is constructed as shown above. The shape of the front axle is relatively simple, and the
front axle is supported at its center with the front axle brackets (15), (16) on the front axle frame (3), so that steering
operation is stable even on an uneven grounds in a farm field.

 

06. December 2021 by samuel
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KUBOTA – L2501 – BRAKES – SERVICING – Plate Wear

1. Measure the plate thickness with vernier calipers.
2. If the measurement is less than the allowable limit, replace it.

 

06. December 2021 by samuel
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KUBOTA – L2501 – BRAKES – SERVICING – Brake Disc Wear

1. Measure the brake disc thickness with vernier calipers.
2. If the measurement is less than the allowable limit, replace it.

 

06. December 2021 by samuel
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KUBOTA – L2501 – BRAKES – SERVICING – Height of Brake Cam Plate and Ball

1. Measure the dimensions of the brake cam plate with the ball installed.
2. If the measurement is less than the allowable limit, replace the cam plate and balls.
3. Inspect the ball holes of cam plate for uneven wear. If the uneven wear is found, replace it.

 

06. December 2021 by samuel
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KUBOTA – L2501 – BRAKES – SERVICING – Cam Plate Flatness

1. Place the cam plate on the surface plate.
2. Use a feeler gauge of 0.3 mm (0.012 in.) thick for judgement of the cam plate flatness. Measure the flatness                  diagonally at more than four locations.
3. If the measurement exceed the allowable limit, replace it.

 

06. December 2021 by samuel
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