Gradall 534B (9020-7317) Service Manual - Manual (Page 174)

Figure 69
Remove clutch piston return spring. A sleeve with
a portion removed is recommended for removing the
clutch piston return spring, washer, and retainer ring.
Sleeve shown is a common pipe, with a 1-1/2 x 1
[39,0x26,0mm] opening. The pipe is 6 x 3-1/4 x 2-3/4
[155,0x85,0x78,0mm]. Compress spring retainer wash-
er. Through opening remove spring retainer snap ring.
Release tension on spring retainer.
Figure 70
Remove spring retainer and spring. Turn clutch,over
and tap clutch shaft on a block of wood to remove
clutch piston.
LOW CLUTCH REASSEMBLY
Figure 71
Install clutch piston outer seal ring. NOTE: Ring must
be sized before installing in clutch drum. Sizing is best
accomplished by rotating piston while holding a round
object against the new seal ring as shown. Rotate pis-
ton until seal ring is flush with outer diameter of piston.
Figure 72
Install clutch piston inner seal ring and size as de-
scribed in Figure 71.
Figure 74
Position piston return spring, spring retainer, and
snap ring in clutch drum.
Figure 73
Position piston in low clutch drum as shown. Use
caution as not to damage inner and outer piston sealing
rings.
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