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CYLINDER REPAIR<br />
BACKHOES<br />
BUCKET CYLINDERS DISASSEMBLY AND REPAIR — 47 BACKHOE<br />
Piston<br />
O-Ring<br />
Gland<br />
Rod Wiper<br />
Lock Nut<br />
Rod Seal<br />
Back-up Ring<br />
Gland Nut<br />
Lock Nut<br />
Rod<br />
One Piece Piston<br />
Note Location of 45°<br />
Chamfer on Piston<br />
for Assembly<br />
Gland<br />
Rod Wiper<br />
Gland Nut<br />
O-Ring<br />
Back-Up Ring<br />
Rod Seat<br />
M94883<br />
1. Replace wear rings, wipers, all seals, O-rings, and backup rings.<br />
2. Inspect rod for straightness, nicks, and scratches.<br />
3. Lubricate all parts in hydraulic oil during assembly.<br />
4. Tighten lock nut to 271 N•m (200 lb-ft).<br />
5. Pressure test at 20 684 kPa (3000 psi) for leakage.<br />
3-26 6/22/99
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