Usage:
1. Turn the machine all of the way to the left to remove the right steering cylinder. Turn the machine all of the way to the right to remove the left steering cylinder. Put blocks in front and behind the wheels.
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Stop the engine, lower the bucket to the ground, move the 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. Remove bolt (2) from the bottom of the rear cylinder pin.
3. Disconnect hose assembly (1) from the rear of the steering cylinder.
4. Remove fender (3) and access covers (4) and (5) from the machine.
5. Remove bolt (7). Remove pin (6) from the top of the frame.
6. Disconnect the lower end of hose assembly (9) from the tube assembly. Remove hose assembly (9) and fitting (8) from the front of the steering cylinder.
7. Remove bolt (11), the lockwasher and washer. Remove the pin, that holds the cylinder rod to the frame, from the top of the frame.
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Use care when the steering cylinder is removed because of its weight. A hoist can not be fastened to the cylinder until it is removed. |
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8. Remove steering cylinder (10) from the front of the frame. The weight of the cylinder is 50 lb. (23 kg).
9. Remove the washers for the cylinder rod from the frame.
Install Steering Cylinders
NOTE: Make sure the cylinder rod is extended before the steering cylinder is installed.
1. Put steering cylinder (1) in position in the frame.
2. Install washers (2) on both sides of the rod end as needed to make the steering cylinder level.
3. Install pin (3) to hold the cylinder rod. Install the bolt, lockwasher and washer that hold the pin.
4. Install pin (4). Install the bolt and lockwasher to hold clip (5) and the grease line for pin (4).
5. Install the washer, lockwasher and bolt (7) to hold the rear cylinder pin.
6. Put clean hydraulic oil on the O-ring seal and connect hose assembly (6) to the steering cylinder.
7. Install fitting (8) and hose assembly (9) to the steering cylinder.
8. Put clean hydraulic oil on the O-ring seal and connect the lower end of hose assembly (9) to the tube assembly.
9. Install access covers (10) and (11) and the fender on the machine.
10. Put clean grease in the cylinder pins.
11. Start the engine and turn the machine all of the way in both directions several times. Stop the engine and fill the hydraulic tank to the correct level.
Disassemble Steering Cylinders
start by:
- remove steering cylinders
1. Remove seals (1) from each side of the rod assembly and cylinder assembly.
2. Remove the bearings from the rod assembly and cylinder assembly with tooling (A).
3. Put the cylinder in position on tooling (B). 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 four bolts (4).
5. Pull the cylinder away from the rod and head with tooling (B).
6. Use tooling (C) to remove the nut that holds piston (5) on the rod. Remove piston (5) and the washer from the rod.
7. Remove seal assembly (7) and ring (6) from the piston.
8. Remove head (8) from the rod.
9. Remove the back-up ring and O-ring seal (9) from head (8).
10. Remove three seals (10) from head (8).
Assemble Steering Cylinders
TYPICAL EXAMPLE
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 the rubber expansion ring in the groove of piston (10) and install plastic seal (7) over the rubber expansion ring.
9. Install seal ring (9) on piston (10).
10. Install washer (8) and piston (10) on the rod as shown.
11. Use tooling (F) to tighten the nut that holds the piston on the rod. Tighten the nut to a torque of 650 ± 65 lb.ft. (880 ± 90 N·m).
12. Put clean hydraulic oil on the seal and 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 steering cylinders