- Lower the scraper bowl to the ground. Retract the ejector cylinder and disengage the cushion-hitch.
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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 work tools have been lowered to the ground, and the 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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Cylinders equipped with load control valves can remain pressurized, even with hoses removed. Failure to relieve pressure before removing a load control valve or disassembling a cylinder can result in personal injury or death. Ensure all pressure is relieved before removing a load control valve or disassembling a cylinder. |
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| NOTICE |
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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. |
- Shut off the engine.
- Turn the engine start switch to the ON position.
- Move the control levers through the full range of travel. This will relieve any pressure that may be present in the hydraulic system.
- Turn the engine start switch to the OFF position.
- Slowly loosen the filler cap for the hydraulic oil tank in order to release the pressure.
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| Illustration 1 | g00810590 |