f.
Assemble end adapter (7) to body (14), take care not to pinch or damage o-ring (8). Install screws (2).
g.
Install dust cover (3), handle (1) and tighten screw (2). Cycle valve to assure free and easy operation.
4-16 MAST RAISING CYLINDER ASSEMBLY
4-16.1 Mast Raising Cylinder. (Figure 4-40)
4-16.1.1 Disassembly.
a.
Unscrew head (11) from outer rod (19), then pull piston rod (7) with assembled components from outer rod (19).
b.
Remove back-up rings (2) and packing (3) from piston (4). Remove nut (1), piston (4) and stop tube (5).
Remove packing (6).
c.
Pull rod (7) out of head (11) and remove packing (8), wiper (9) and seal (10) from head (11).
d.
Unscrew rod head (15) from barrel (16), then pull outer rod (19) with assembled components from barrel (16).
Remove stop ring halves (17).
e.
Remove head (15) from outer rod (19) and remove packing (12), wiper (13) and seal (14) from head (15).
f.
Remove snap ring (18) from outer rod (19).
4-16.1.2 Repair.
a.
Items 2, 3, 6, 8, 9, 10, 12, 13 and 14 are contained in the seal kit and shall be replaced any time cylinder is
disassembled.
b.
Clean all remaining parts thoroughly with an approved solvent.
c.
Inspect all parts for wear, burrs, scoring or other damage. Replace parts as needed.
4-16.1.3 Assembly.
a.
Coat seal (14), wiper (13) and packing (12) with a light layer of hydraulic oil and install them on head (15). Slip
head over the end of outer rod (19).
b.
Install the snap ring (18) in the groove inside outer rod (19). Apply oil to outer surface of stop ring halves (17)
and assemble them on outer rod (19).
c.
Install outer rod (19) assembly in barrel (16). Screw head (15) into barrel.
d.
Coat back-up rings (2) and packing (3) with oil and install them in piston (4). Coat seal (10), wiper (9) and
packing (8) with oil and install them in head (11). Oil the packing (6) and install it on piston rod (7).
4-164
