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Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine. To prevent possible injury, perform the procedure that follows before testing and adjusting the power train. |
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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
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Escaping fluid under pressure, even a pinhole size leak, can penetrate body tissue, causing serious injury, and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury. Always use a board or cardboard when checking for a leak. |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
- Move the machine to a smooth, horizontal location that is away from operating machines and away from personnel.
Note: Permit only one operator on the machine. Keep all other personnel away from the machine or in the operator's sight.
- Move the STIC transmission direction control switch to the NEUTRAL position. Move the STIC control lock into the LOCKED position.
- Move the work tool until the bottom of the work tool is 1.2 m (4 ft) above the ground. Position the work tool so that the cutting edge points down approximately 20 degrees below horizontal.
- Lower the work tool until the cutting edge of the work tool is just off of the ground.
- Turn the key switch to the OFF position in order to shut off the engine.
- Move both the lift control lever and the tilt control lever to all positions in order to release the pressure in the hydraulic system.
- Place the lift control lever into the FLOAT position and the tilt control lever into the HOLD position.
- Release the pressure in the implement hydraulic tank. Depress the plunger on the hydraulic tank breather until air no longer escapes. Loosen the oil filler cap for the implement tank until air no longer escapes. Tighten the filler cap.
- Engage the parking brake.
- Put blocks in front of the wheels and behind the wheels.
- Install the steering frame lock.
Troubleshooting can be complex. A list of some of the possible problems and corrections are on the following pages.
This list of possible problems and possible corrections will only provide an indication of the location of a problem and the repairs that are required. Remember that a problem is not necessarily caused by one part, but by the relation of one part with other parts. This list can not provide all possible problems and corrections. Service personnel must find the problem and the source of the problem. Then, complete the necessary repairs.
Perform a visual inspection first. If the visual checks are completed but the problem has not been identified, perform operational checks. If the problem is not understood, perform instrument tests. This procedure will help to identify power train problems.