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Service
307158ZAP
9
Disassembly
(continued -- refer to Fig. 3)
8. For Models 217022, 217338, 262818, and 24W139,
loosen, but do not remove, the four tie rod nuts (3)
and the nuts (B) on the hydraulic tube (48).
For Model 235345, you need to remove the cap
screws (21), the drip pan (26), the drip cover (31),
and machine screw (42) before loosening the tie rod
nuts. Then remove the four tie rod nuts (3). Loosen
the nuts (B) on the hydraulic tube (48) and loosen
the tie rods (35).
9. Remove the motor from the vise and lay it in a pan.
10. Remove one detent assembly: retaining plug (28),
o-ring (25), spring (29), ball guide (27) and ball (7). If
the ball or other parts stick in the upper housing
(40), turn the motor over and tap lightly. Do not
allow the parts to fall into the motor. Repeat the
procedure for the other detent assembly.
11. Remove the tie rods (35), but do not remove the
crown nuts (22).
12. Remove the socket screws (8) and the end cap (44).
Pull the stop plug (43) from the upper housing (40).
13. Unscrew the top and bottom compression nuts (B)
on the hydraulic tube (48). Rotate the upper
housing (40) and remove the tube, being careful not
to damage the flare (A). Allow the oil to drain from
the motor into the pan.
14. Rock the upper housing (40) to work it free and lift it
about 3 inches off the cylinder (39). The cylinder
can stay in the lower housing (41).
15. Hold the trip rod (36) with an adjustable wrench on
the flats of the rod, and remove the top hex nut (20)
from the trip rod.
16. Remove the upper housing (40).
17. Remove the trip rod guides (34), compression
springs (38) and valve spool (37) from the upper
housing. Inspect the bearing inside of the guide (51)
in place. If bearing is damaged replace item 51.
NOTE
: Inspect the trip rod (36) above the shoulder for
damage. There must be no reduction in diameter.
Replace if necessary.
18. Pull the trip rod and piston from the lower housing
(41) and cylinder (39). Place the piston flats (49a) in
a vise; tighten the vise on the flats of the piston.
Remove retaining ring (49c) and use a face spanner
to remove the retainer (49b). Remove the trip rod
(36) from the piston (49a).
19. Remove the trip rod locknut (9) and piston stop
(33). If the piston is replaced, remove the spring (55)
to use in the new piston.
20. For Models 217022 and 217338, place the lower
housing (41) on top of vice jaws. Pinch the adapter
plate (14) in the jaws. Twist and remove. Inspect the
bearing (30) and wiper (18) for wear. Replace if
necessary.
21. Turn lower housing over and remove the seal (23)
and backup seal (23a).
22. For Models 235345, 262818, and 24W139, remove
the bearing (45), packings (23), and o-ring (12,
Model 235345 only).
NOTICE
With the tie rods removed, the assembly may separate
at the joints between the cylinder (39) and the upper
and lower housings (40 and 41). Hold motor and
housings securely when removing parts to avoid
premature separation of large parts and possible
damage to parts from falls.
Содержание 235345
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