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Disassembling the Cylinder (continued)
Assembling the Cylinder
Hydraulic System: Service and Repairs
B. Insert a screwdriver under the beveled edge of the retaining ring to start
the retaining ring through the opening.
C. Rotate the head counter-clockwise to remove retaining ring from barrel
and head.
4. Remove the plugs from the ports. Extract the shaft, head and piston
assembly from the barrel by carefully twisting and pulling on the shaft.
Do not clamp vise jaws against the shaft surface. Clamp on the
clevis ONLY.
5. Mount the shaft securely in a vise by clamping on the clevis of the shaft.
Remove the lock nut from the rod. Slide the piston and head off the shaft.
6. Remove the seals, wear ring, backup ring, and O-rings from the piston and
head.
Refer to
Figure 58
for this procedure.
1. Make sure all cylinder components are clean before assembly.
Note: Clean any debris or corrosion from the end of the barrel.
2. Coat the new O-rings, seals, wear ring, and back−up ring with clean hydraulic
fluid.
A. Install the wear ring and piston seal to the outside of the piston.
B. Install the O-ring to the inner bore of the piston.
C. Install the O-ring, backup ring, and the seals to the cylinder head.
Do not clamp vise jaws against the shaft surface. Clamp on the
clevis ONLY.
3. Mount the shaft securely in a vise by clamping on the clevis of the shaft.
A. Coat the shaft with a light coat of clean hydraulic fluid.
B. Carefully slide the head assembly and then the piston assembly onto the
shaft. Install the lock nut onto the rod and tighten to 54 N·m (40 ft−lb).
C. Remove the shaft assembly from the vise.
4. Coat all internal parts with a light coat of clean hydraulic fluid. Slide the
piston/shaft/head assembly into the barrel being careful to not damage the
seals.
Prevent damage when clamping the cylinder's barrel into a vise;
clamp on the clevis only.
5. Mount the cylinder in a vise with soft jaws. Secure the head in the barrel:
IMPORTANT
IMPORTANT
IMPORTANT
Page 5–82
Field Pro® 6040
22267SL Rev A
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