Challenger 35, Challenger 45 and Challenger 55 Agricultural Tractors Caterpillar

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Sudden movement of the machine or the three-point hitch while connecting implement hydraulics or the PTO drive shaft can cause personal injury. Always lower the implement to the ground and stop the engine before entering the three-point hitch linkage area to connect auxiliary equipment.

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Bystanders can become trapped between the machine and the implement when the operator is backing the machine to connect to an implement, causing personal injury or death. Make sure that the surrounding area is free of any personnel before maneuvering to connect an implement.

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The drawbar could swing unexpectedly if it is not properly restrained when transporting equipment. Possible unstable operation of the towed implement could cause an accident and result in personal injury. Always install the drawbar swing stop to prevent drawbar swing when transporting equipment.

Illustration 1	g00489842

The standard quick hitch provides a fast, easy method for attaching and for removing three-point hitch implements.

Prior to Attaching an Implement to the Quick Hitch

1. Adjust the sway limiters and sway blocks to a position that is suitable for the implement and for the application.

2. Shorten the drawbar or remove the drawbar if equipment that is mounted close to the machine could cause interference.

3. Make sure that the PTO shield is in the proper position. See Operation and Maintenance Manual, "PTO Shield Adjustment" for more information.

4. Rotate the draft/position control knob (if equipped) all the way in the counterclockwise direction to the POSITION CONTROL ONLY position.

5. Adjust the weight of the machine. Follow the guidelines in Operation and Maintenance Manual, "Counterweight - Adjusting Tractor Balance".

Attaching Implement to Quick Hitch

1. Put the latch handles in the DOWN position.

2. Back up the machine to the implement. Make sure that the lower hooks are below the pins on the implement. Also, make sure that the three-point hitch frame is parallel to the implement.

3. When the lower hooks are directly below the pins on the implement, raise the three-point hitch slowly in order to capture the implement. Verify that both lower latches of the quick hitch fully engage the hitch pins.

4. Attach any auxiliary equipment. Auxiliary equipment includes the implement hoses or the PTO drive shaft.

5. Perform the checks in Operation and Maintenance Manual, "Attaching and Detaching Three-Point Implements".

Detaching Implements from the Quick Hitch

1. Lower the implement onto a flat, level site. Make sure that the implement is supported properly. The implement should not fall when you uncouple the implement from the machine.

2. Remove any auxiliary equipment. Auxiliary equipment includes the implement hoses or the PTO drive shaft.

3. Pull up the latch handles in order to release the pin latches.

4. Lower the three-point hitch until the hitch clears the pins on the implement. Then, slowly drive away the machine.

Conversion of the Quick Hitch

The quick hitch is set at the factory for category III implements. However, the quick hitch can be set to accept category IIIN implements. Use the following procedure in order to convert the quick hitch.

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Illustration 2	g00512283

Note:

1. Remove bolts (1) and pins (2) from each side of the quick hitch.

Note: Dowel pins are present behind leg (3) and leg (4) .

2. Remove leg (3) and leg (4) .

3. Use bolts (1) and pins (2) in order to install leg (3) in the former position of leg (4). Also, use bolts (1) and pins (2) in order to install leg (4) in the former position of leg (3) .

4. Torque bolts (1) to a torque of 530 ± 70 N·m (391 ± 52 lb ft).