SPACER 3497901 - Caterpillar

Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine.To prevent personal injury or death, perform the following:Park the machine on a smooth, level surface.Lower the bucket and/or attachments to the ground and engage the parking brake.Stop the engine and remove the key.Block the wheels and install the steering frame lock.
An initial test for lift cylinder drift should be done before isolating the lift cylinder.Reference: Testing and Adjusting, SENR5883, "Lift and Tilt Cylinder Drift - Check"This test will help to determine whether the lift cylinder is causing a drift problem. When the oil port at the end of the lift cylinder is blocked, the lift cylinder should not move during a drift test. If the lift cylinder moves, there is internal leakage in the lift cylinder.
Start the engine. Move the transmission direction control switch to the NEUTRAL position.
Engage the parking brake.
Move the steering frame lock to the locked position.
Raise the bucket off the ground approximately 1 m (3.3 ft). Place a support block under the bucket. Lower the bucket onto the support block.
Stop the engine.
When the engine has stopped, turn the engine start switch key to the ON position. Move the hydraulic control levers to all positions in order to release the pressure in the hydraulic system. Place the lift control lever in the FLOAT position. Place the tilt control lever in the HOLD position.
Push down on the hydraulic tank breaker relief valve in order to relieve the pressure in the hydraulic oil tank. Push down on the plunger until all pressure is released from the hydraulic oil tank.
Release all hydraulic pressure before any fitting, any hose, or any component is loosened, tightened, removed, or adjusted.
Illustration 1 g00639293
Lift Cylinder Lines Group (Top View) (1) Hose assembly to head end of the left lift cylinder (2) Manifold (3) Hose assembly to head end of the right lift cylinder
Remove hose (1) from manifold (2) .
Install a 1P-3703 Seal, a 5P-0047 Blocking Cover, two 6V-0397 Half Flanges, four 8T-4183 Hex Head Bolts, and four 8T-4223 Plain Washers on the manifold.
Install a cover plate, two 6V-0397 Half Flanges, four 8T-4183 Hex Head Bolts, four 8T-4223 Plain Washers and four 6V-8149 Nuts to the end of the hose assembly.Note: The cover plate should be at least 6 mm (0.24 inch) steel. The cover plate needs to have the same configuration for the bolt holes as the 6V-0397 Half Flanges .
Start the engine. Warm the hydraulic oil to normal operating temperature of approximately 49 to 65°C (120 to 150°F).
To check the lift cylinder, raise the bucket to the maximum height and move the control lever to the FLOAT position. Place the hydraulic lever lock in the OFF position.
Stop the engine.
Turn the engine start key to the ON position. Place the lift control lever in the FLOAT position. Check the distance of rod movement according to the following chart.
Table 2
Approximate Lift Cylinder Drift for the 980G Wheel Loader (1)    
Oil Temperature     Time