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17. Position the drive segment (19) at the cavity in the drive plate. Make certain the teeth of the
pawl will properly engage the teeth of the ratchet. If they will not engage properly, reverse
the ratchet in the drive plate. Insert the segment pawl springs (20) into the holes in the pawl,
and while compressing the springs with finger pressure, slide the pawl and springs into the
drive plate.
18. For 56578, 56572, 56579 and 56580 models, proceed as follows:
a) From inside the housing ears, insert a driver sleeve (16) into each ear with the detent end
of the sleeve trailing.
b) Position the assembled drive plate between the ears of the housing with the notch for the
piston rod toward the rod end.
c) Insert allen hex wrench into the larger hole on the end of the square drive (11) to loosen
the locking pin (14) until the ball plunger (12) is flush with the top of the square drive. Then
align the square opening of the ratchet (17) with the square opening of the sleeves (16).
Insert the square drive through the openings, and tighten the locking pin once in place.
For 56581, 56582 and 56583 models, proceed as follows:
a) Position the assembled drive plate between the ears of the housing with the notch for the
position rod toward the rod end.
b) From the outside of the housing ears, insert sleeves (16) into each ear. Then insert
sleeve retainer clips (36) into groove to retain sleeves (24).
NOTICE
In the following step, the side of the housing that the square protrudes from will determine
the direction of square drive rotation. If the square extends to the left side when looking from
the inlet end of the housing, rotation will be clockwise to tighten. A right side extension is
counterclockwise for loosening.
c) Insert the splined end of the square drive (11) through the driver sleeves and ratchet.
Install the square drive retaining screw (35) in the end of the square drive and tighten it.
19. Insert the retract pin (21) into the hole in the drive plate through the hole in the housing. Use
drift and hammer to tap the pin into the plate and rod to secure the assembly. Make certain
the Pin does not protrude beyond the sides of the drive plate.
20. For 56580, 56581, 56582 and 56583 models, use a hex wrench to install the two retract pin
hole plugs (2) flush with the sides of the housing.
21. Place one end of the shroud (31) on the housing and using a hex wrench, install the shroud
screws (32) at that end).
22. Bend the shroud around the housing and install the remaining screws.
ASSEMBLY OF THE REACTION ARM ASSEMBLY
1. If the reaction arm cover (4) was removed, push it onto the end of the reaction arm (3) and
using a hex wrench, secure it by installing the two reaction arm cover screws (5).
2. Insert the reaction arm pin spring (6) in the downward, blind hole below the bore for the
reaction arm splined sleeve (10).
3. Position the reaction arm splined sleeve in the bore of the reaction arm with the small hub
end trailing and the slightly larger hole through the side of the sleeve upward. Align the holes
through the sleeve with the holes in the reaction arm.
4. Insert the reaction arm engagement pin (7), flat end leading, through the sleeve into the hole
against the pin spring.
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