Service Manual User Manual

Section 9
9-108
a. Swing Carriage Cylinder Removal
1. Level the boom (place the boom in a horizontal
boom).
2. Swing the carriage to the centered position.
3. Lower the boom until the carriage is resting firmly on
the ground.
4. Place the travel select lever in NEUTRAL (N), engage
the park brake switch and shut the engine OFF.
5. Unlatch, unlock and open the engine cover. Allow the
hydraulic fluid to cool.
6. Pull the knob on the manually-operated release valve
(Fig. 9– 70) located at the rear of the frame to relieve
pressure in the auxiliary hydraulic system.
Figure 9– 70. Pull the knob on the manually-operated
release valve located at the rear of the frame to relieve
pressure in the auxiliary hydraulic system.
7. Remove all dirt and grease from the swing carriage
cylinders (Fig. 9– 71) and their hydraulic lines (2 and
3).
8. Label or otherwise mark the hydraulic lines (2 and 3).
9. Disconnect and cap all hoses and fittings, etc.
10. Use a sling and hoist or other suitable lifting device to
support the cylinder. Remove the bolt and nut holding
the center mounting pin (4) to the pivot mount (5).
Remove the pin.
11. Remove the snap rings (6) and cylinder base end
pins (7) from the mounting plates on the carriage
(11).
Figure 9– 71. Swing carriage cylinder detail.
12. Identify and mark the location of the 1-1/2” I.D. shims
(9) at the base end of the cylinder.
13. Remove the cylinder(s) from the pivot mount and the
mounting plates using the strap sling and hoist or
other suitable lifting equipment. While removing the
cylinder(s), identify the locations of the 2” I.D. shims
(9) at the rod end(s) of the cylinder(s). DO NOT lose
the bearing(s) (8) in the cylinder rod end(s).
14. Wipe up any hydraulic fluid spillage in, on, near and
around the vehicle.
WARNING: Hot hydraulic fluid can cause
severe burns. Wait for hydraulic fluid to cool
before servicing any hydraulic component.
WARNING: Escaping hydraulic fluid under
pressure can penetrate the skin, causing seri-
ous injury. Relieve hydraulic pressure before
servicing any hydraulic component.
OS0360
Manually-operated
Release Valve
(for OPTIONAL
Auxiliary Hydraulics)
E
R
MA6110
1. Cylinder
2. Auxiliary Hydraulic Hoses
3. Cylinder Hoses
4. Center Mounting Pin
5. Pivot Mount
6. Snap Rings
7. Cylinder Base-end Pins
8. Rod-end Bearings
9. Shims, 2” I.D.
10. Shims, 1-1/2” I.D.
11. Mounting Plates
(part of carriage)
2
3
5
4
9
8
9
1
Bolt
Nut
8
9
1
6
10
11
7
6
1
1
Model 3606 • Origin 10/99