LENS 1654895 - Caterpillar

Illustration 1 g00868345
Set the blade flat on the ground. Ensure that the tip cylinder (left) is at the mid-travel position.
Raise the front wheels off the ground by lowering the right side of the blade (Tilt Right).
Place the joystick control in the HOLD position.
Turn the engine start switch to the OFF position. Monitor the tip cylinder and the tilt cylinder for movement. Record the movement. Table 1 gives the maximum drift.Note: The values for maximum drift in the table are for a new machine.
Start the engine.
Position the blade on the ground. Position the tip cylinder (left) in the mid-travel position.
Raise the front wheels off the ground by lowering the left side of the blade (Tilt Left).
Place the joystick control in the HOLD position.
Turn the engine start switch to the OFF position. Monitor the tip and tilt cylinder for movement. Record the movement. Table 1 gives the maximum drift.Note: The values for maximum drift in the table are for a new machine.The following problems may cause excessive amounts of cylinder drift.
Hydraulic oil line connections may be loose. The hoses that are between the control valve and the rod end of the lift cylinder may be damaged.
The piston seals in the lift cylinder are leaking.
The control valve is leaking. This can be caused by a worn section of the valve. This can also