Gradall LOED 534A, Service Manual

Page: 53 / 91

The rubber lip of the seal should
point toward the rear of the pump
so that the garter spring is inside.
(Fig. 70)
Place a clean block of wood between
the rear jaw of the vise and the back
of the flange. Next, place the seal
in position in the bore of the flange.
Place the seal press ring in position
against the seal, taking care that it
is centered over the seal. (Fig. 71)
Seal Replacement
Stand pump on end and loosen all
fasteners holding flange to body.
Remove flange.
Lay the flange on a smooth clean
surface and remove snap ring.
Lay flange on open jaws of vise
(pilot down), using punch and mal-
let tap old seal out of the bore.
Caution must be taken not to scar
the seal bore in the flange. Drive
the seal out straight by moving the
punch around the seal as it is driven
out. (Fig. 69)
1.
2.
3.
4.
5.
6.
53
FIGURE 68
FIGURE 69
FIGURE 70
FIGURE 71