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Reelmaster 3100−D Hydraulic System (Rev. C)
Page 4 − 123
Disassembly
1. Remove oil from the steering cylinder into a drain pan
by slowly pumping the cylinder shaft. Plug both ports
and clean the outside of the cylinder.
IMPORTANT: Prevent damage when clamping the
hydraulic cylinder into a vise; clamp on the clevis
only.
2. Mount clevis end of steering cylinder in a vice. Re-
move retaining ring.
3. Extract shaft, head, and piston by carefully twisting
and pulling on the shaft.
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Protect shaft surface before mount-
ing in a vice.
4. Mount shaft securely in a vise by clamping on the cle-
vis of the shaft. Remove lock nut and piston from the
shaft. Slide head off the shaft.
5. Remove Uni−ring and O−ring from the piston.
6. Remove back−up ring, O−rings, and rod seal from
the head.
Reassembly
1. Make sure all parts are clean before reassembly.
2. Coat new O−rings, Uni−ring, rod seal, and back−up
ring with with clean hydraulic oil.
A. Install Uni−ring and O−ring to the piston.
B. Install O−rings, back−up ring, and rod seal to the
head.
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Protect shaft surface before mount-
ing in a vice.
3. Mount shaft securely in a vise by clamping on the cle-
vis of the shaft.
A. Coat shaft with a light coat of clean hydraulic oil.
B. Slide head onto the onto the shaft. Install piston
and lock nut onto the shaft. Torque nut from 24 to 30
ft−lb (33 to 41 N−m).
C. Remove shaft from the vise.
IMPORTANT: Prevent damage when clamping the
hydraulic cylinder into a vise; clamp on the clevis
only.
4. Mount clevis of the barrel in a vice.
5. Coat all internal parts with a light coat of clean hy-
draulic oil. Slide piston, shaft, and head assembly into
the barrel being careful not to damage the seals.
6. Secure head in the barrel with the retaining ring.
Hydraulic
System