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Personal injury or death can result from sudden machine movement. Sudden movement of the machine can cause injury to persons on or near the machine. To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine. |
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Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure. |
To relieve the pressure from the coolant system, turn off the machine. Allow the cooling system pressure cap to cool. Remove the cooling system pressure cap slowly in order to relieve pressure.
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Hydraulic oil pressure can remain in the hydraulic system on this machine after the engine and pump have been stopped. Serious injury can result if this pressure is not released before any service is done on the hydraulic system. In order to prevent possible injury, release the hydraulic system pressure before working on any fitting, hose, or hydraulic component. Lower all work tools to the ground before service is started. If the hydraulic system must be serviced, tested, or adjusted with the work tool in the raised position, the work tool and lift cylinders must be supported properly. Always move the machine to a location away from the travel of other machines. Be sure that other personnel are not near the machine when the engine is running and tests or adjustments are being made. |
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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. |
Note: Use this procedure to drain pressure from all accumulators and release trapped pressure in all systems.
- Park the machine on a hard, smooth, level surface. The location should also be dry and free of debris.
- Permit only one operator on the machine. All other personnel should be kept away from the machine.
- Position the implement just above the ground at a slight downward angle. This position will ensure that the head end of the lift cylinders is pressurized.
- Engage the parking brake.
- Turn the engine start switch to the OFF position.
- When the engine has stopped, turn the engine start switch back to the ON position so the pilot oil can reach the main valve.
- Move the implement lockout switch to the UNLOCKED position.
- Move the control levers to relieve hydraulic pressure.
The bottom of the implement should rest flat on the ground. The weight of the linkage should be supported by the ground. The pressure from the head end of the lift cylinders and from the accumulator is now vented to the hydraulic tank.
- When the implement has settled to the ground, release both control levers. Cycle the control levers through all positions several times in order to purge any remaining pressure from the implement hydraulic system. This action will completely drain the pilot accumulator.
- Turn the engine start switch to the OFF position.
- Depress the breaker valve in order to release the pressure from the hydraulic tank.
- After all of the pressure has been released, hydraulic lines and components can now be removed.
Release Procedure (Steering System & Braking System)
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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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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. |
- Park the machine on a hard, smooth, level surface. The location should also be dry and free of debris.
- Straighten the machine and install the frame lock.
- Lower the implement to the ground and stop the engine.
- Engage the parking brake.
- Turn the engine start switch to the OFF position.
- Move joysticks to the left and fully to the right several times to relieve the pressure in the steering system.
- Depress the brake pedal repeatedly in order to release any pressure in the braking system. When no more resistance is felt and no pressure release is heard, the braking system pressure is released.
- Depress the breaker valve in order to release the pressure from the hydraulic tank.
- After all of the pressure has been released, hydraulic lines and components can now be removed.