Usage:
start by:
a) remove bucket positioner *
b) remove bucket positioner master cylinder *
*NOTE: These steps are needed for the right side only.
1. Lift the bucket until tooling (B) can be installed. Install blocks or stands under the lift arms and bucket for support.
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Stop the engine and move all control levers backward and forward to release the pressure in the hydraulic system. Slowly loosen the cap to release any pressure in the hydraulic tank. Let the hydraulic oil become cool before any lines are disconnected in the hydraulic system. |
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2. Fasten a hoist to the tilt cylinder.
3. If necessary use tool (A) and clean the threads in the rod pin.
4. Remove the bolt that holds the rod pin. Install tooling (B) and remove the rod pin.
NOTE: Tooling (B) can not be used on the right side.
5. Remove two bolts (2) that hold the upper tube assembly (1) and the lower tube assembly to the tilt cylinder.
6. Disconnect upper tube assembly (1) and the lower tube assembly from the tilt cylinder. Move the tube assemblies out of the way for removal of the tilt cylinder.
7. Disconnect the wire from headlight (4).
8. Remove bolt (3) and headlight (4) from the frame.
9. If necessary use tool (A) and clean the threads of the cylinder pin.
10. Install tooling (B) and remove the cylinder pin. Remove the tilt cylinder. The weight of the tilt cylinder is 110 lb. (49.5 kg).
Install Tilt Cylinders
1. Fasten a hoist to the tilt cylinder and put it in position in the machine.
2. Install cylinder pin (1) with the hole in the pin in alignment with the hole in the frame.
3. Put the headlight in position and install the bolt that holds it and the cylinder pin.
4. Put the rod in position and install rod pin (2) with the hole in the pin in alignment with the hole in the lever.
5. Install the bolt that holds the rod pin.
6. Put clean hydraulic oil on the O-ring seals. Connect the lower tube assembly and upper tube assembly (3) to the tilt cylinder. Install the bolts that hold the tube assembly clamps.
7. Put clean grease in the cylinder and rod pins.
8. Remove the blocks or stands from under the bucket and lift arms. Lower the bucket to the ground.
9. Fill the hydraulic system with oil to the correct level.
end by:
a) install bucket positioner
b) install bucket positioner master cylinder
Disassemble Tilt Cylinders
start by:
a) remove tilt cylinders
1. Remove seals (1) from each side of the cylinder and rod assemblies.
2. Use tooling (B) to pull the bearings from the cylinder and rod assemblies.
3. Fasten a hoist and put the cylinder in position on tooling (A). Install support (3) under the rod and fasten strap (2) around the rod to hold it in position.
4. Put a mark on the head and cylinder assembly for correct alignment at assembly. Remove bolts (4).
5. Pull the cylinder away from the head with tooling (A).
6. Use tooling (C) to remove the nut that holds the piston on the rod.
7. Remove piston (6) and head (5) from the rod.
8. Remove wear ring (7) and seal assembly (8) from piston (6).
9. Remove the back-up ring and O-ring seal (9) from head (5).
10. Remove three seals (10) from head (5).
Assemble Tilt Cylinders
1. Use tool (A) to install seal (4) in head (1).
2. Install seal (3) in the head with the lip of the seal toward seal (4).
3. Use tool group (B) to install seal (2) in the head with the lip of the seal toward the outside.
4. Install O-ring seal (6) and back-up ring (5) in the head as shown.
5. Put the cylinder assembly and rod on tooling (E).
6. Install tool (C) on the rod. Put clean hydraulic oil on the lips of the seals in the head. Push the head on the rod. Remove tool (C) from the rod.
7. Use tool (D) to cause expansion of the plastic seal (7) of the piston seal assembly.
8. Install wear ring (9) on piston (8).
9. Install the rubber expansion ring in the groove of piston (8) and install plastic seal (7) over the rubber expansion ring.
10. Install piston (8) on the rod.
11. Use tooling (F) to tighten the nut that holds the piston on the rod. Tighten the nut to a torque of 1200 ± 120 lb.ft. (1620 ± 160 N·m).
12. Put clean hydraulic oil on the seal and wear ring on the piston and on the back-up ring and O-ring seal on the head.
13. Make an alignment of the marks on the head and cylinder assembly. Slowly push the cylinder assembly on to the piston and head with tooling (E). Be careful not to damage the O-ring seal and the back-up ring on the head.
14. Make sure the rod is fully extended from the cylinder assembly and tighten the bolts that hold head (1).
15. Remove the cylinder assembly from tooling (E).
16. Install the bearings in the cylinder assembly and rod assembly with tooling (G). Install the bearings until they are in the center of their bore.
17. Use tool group (B) to install the seals in the cylinder and rod assemblies until the seals make contact with the bearings.
NOTE: The lip of the seals must be toward the outside as shown.
end by:
a) install tilt cylinders