AXLE GP-DRIVE & STEERING 1687441 - Caterpillar

For specific information on your host machine, refer to the Operation and Maintenance Manual of your host machine.
Installation Procedure
Personal injury or death can result from improperly checking for a leak.Always use a board or cardboard when checking for a leak. Escaping air or fluid under pressure, even a pin-hole 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.
Note: Hydraulic oil may be trapped in the lines if the hydraulic lines are plugged or if the hydraulic lines are connected. The trapped oil may be under pressure. Use care when you open the hydraulic lines.Note: The quick coupler must be controlled by the excavators hydraulic system. There are operational requirements for the quick coupler control system. Refer to Operation and Maintenance Manual, "Approved Machines" for additional information.Perform this procedure as the procedure is described in the following steps:Ensure that the quick coupler is compatible with the host machine. For more information, consult your Caterpillar dealer.To provide a stable operating condition, the host machine must be on flat, level ground. The host machine must be blocked to prevent inadvertent movement.The quick coupler must be supported to prevent inadvertent movement. Position the quick coupler to prevent unnecessary climbing and unnecessary bending.Optimum alignment of the bores will prevent the use of unnecessary force when you install the pins. Never check the alignment of the bores with your fingers. Use the proper tools to check the alignment of the bores.A retaining pin can fly out when the retaining pin is struck with force. The area must be clear of people when you drive retaining pins.When you strike objects, chips and other debris can fly. Before you strike any object, make sure that no one can be injured by the flying debris. Always wear safety glasses.
Illustration 1 g00741430
Position the quick coupler on the ground in front of the host machine. Make sure that the wedge faces away from the host machine.
Install the mounting pins. Refer to the Operation and Maintenance Manual of the host machine to verify the correct procedure for your machine.
Lubricate all the mounting points.
Connect the hydraulic lines to the quick coupler (if equipped).
After mounting the quick coupler on the excavator, or after working on the quick coupler hydraulic system, it is necessary to purge all the air from the cylinder and the control system. Refer to the Operation and Maintenance Manual, "Hydraulic System Air Purge" for additional information.Removal Procedure
Lay the quick coupler flat on the ground.
Release the pressure from the hydraulic lines (if equipped).
Extend the wedge to the UNCOUPLE position.
Stop the engine on the host machine. Turn the ignition to OFF.
Turn the ignition to the ON position without starting the engine.
Move the hydraulic control levers repeatedly through the full range of motion. This will release any pressure that may be present in the hydraulic system.
The wedge should begin to move inward due to the spring force.
Turn the ignition