Section 7.Component Procedures

Model 9600/9700 Swing-Reach ® Lift Truck

Bleeding the Hydraulic SystemHydraulic Components

Bleeding the Hydraulic System

Bleed the hydraulic system to remove any trapped air whenever you:

•Change a hydraulic hose

•Disconnect a hydraulic fitting

•Remove a hydraulic cylinder

•Remove a hydraulic pump

•Remove the hydraulic reservoir

•Notice that the load is bouncing

Main Lift Cylinders

NOTE: Model 9600 and 9700 Main Lift cylinders have two bleed screws: one located in the cylinder cap and one located on the piston plug. See Figure7-90 screw hole, retighten the bleed screw. Repeat this for the other lift cylinder.

3.Lower the carriage to the floor.

Mini-Mast Lift Cylinder

1.Elevate the load handler until the forks are 6 to 12 in. (150to 300mm) above the floor.

2.Slowly loosen but do not remove the bleed screw on the mini-mast cylinder. Allow all air in the cylinder to escape. Hold a shop rag close to and beneath the bleed screw to keep hydraulic fluid from spraying out. When fluid starts flowing from the bleed screw hole, retighten the bleed screw.

3.Lower the load handler to the floor.

Load Handler

1.Cycle traverse and rotate.

2.Rotate the forks fully clockwise.

3.Slowly loosen but do not remove the fitting in Port P1 (the lower fitting on the back, facing the tractor) of the rotate actuator.

4.Move the rotate control to rotate the forks clockwise until all the air is forced out of the P1 port. See Figure7-91.

5.Release the rotate control, then tighten the fitting in the P1 port.

6.Rotate the forks fully counterclockwise. Slowly loosen but do not remove the fitting in the P4 Port (the top fitting on the front, facing the forks) of the rotate actuator. See Figure7-91

1.Elevate the carriage 6 to 12 in. (150to 300mm) above the floor.

2.One at a time, slowly loosen but do not remove the bleed screws. Allow all air in the cylinder to escape. Hold a shop rag close to and beneath the bleed screw to keep hydraulic fluid from spraying out. When fluid starts flowing from the bleed

Publication: 1089040, Issued: 08 Apr 2016

Model 9600/9700 Swing-Reach ® Lift Truck

Hydraulic Components

7.Move

8.Release the rotate control and tighten the fitting in the P4 port.

9.Thoroughly clean up any spilled hydraulic fluid.

NOTE: No bleeding procedure is required for traverse, as cycling both to the left and right automatically purges the air from the system.

Section 7.Component Procedures

Bleeding the Hydraulic System

Publication: 1089040, Issued: 08 Apr 2016 7-75