SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS
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5-43
13.
Rotate the capscrews evenly and progressively in rota-
tion to 5 ft. lbs. (7 Nm).
14.
Remove the cylinder rod from the holding fixture.
WHEN INSTALLING HYDROLOCK PISTON SEALS, ENSURE SEALS ARE
INSTALLED PROPERLY. REFER TO HYDROLOCKK PISTON SEAL INSTALLATION
FOR CORRECT SEAL ORIENTATION. IMPROPER SEAL INSTALLATION COULD
RESULT IN CYLINDER LEAKAGE AND IMPROPER CYLINDER OPERATION.
15.
Place new hydrolock seal and guidelock rings in the
outer piston diameter groove. (A tube, with I.D. slightly
larger than the O.D. of the piston is recommended to
install the solid seal).
16.
Position the cylinder barrel in a suitable holding fixture.
EXTREME CARE SHOULD BE TAKEN WHEN INSTALLING THE CYLINDER ROD,
HEAD, AND PISTON. AVOID PULLING THE ROD OFF-CENTER, WHICH COULD
CAUSE DAMAGE TO THE PISTON AND CYLINDER BARREL SURFACES.
17.
With barrel clamped secured and adequately support-
ing the rod, insert the piston end into the barrel cylinder.
Ensure that the piston loading o-ring and seal ring are
not damaged or dislodged.
18.
Continue pushing the rod into the barrel until the cylin-
der head gland can be inserted into the barrel cylinder.
19.
Secure the cylinder head gland using the capscrews.
Torque capscrews to 18 ft. lbs. (25 Nm).
20.
After the cylinder has been reassembled, the rod should
be pushed all the way in (fully retracted) prior to the re-
installation of any holding valve or valves.
21.
If applicable, install the cartridge-type holding valve and
fittings in the rod port block, using new o-rings as appli-
cable. Torque valves to 50-55 ft. lbs. (68-75 Nm).
Figure 5-83. Hydrolock Piston Seal Installation
Figure 5-84. Piston Seal Kit Installation
MAE33460
O-RING
HYDROLOCK
SEAL
GUIDELOCK
RING
BACKUP
RING
MAE33440
BARREL
PISTON
ROD
SPACER
HEAD
ROD
CAPSCREW
Figure 5-85. Rod Assembly Installation
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