Gradall LOED 534A Service Manual - Manual (Page 72)

P l a c e t h e s e a l p l a t e b e t w e e n t h e
o p e n j a w s o f a m a c h i n i s t ’s v i s e w i t h
t h e c a s t s u r f a c e a g a i n s t t h e s t a t i o n -
any jaw. (Fig. 115)
Position the metal face of the new
seal over the seal bore. Make sure
it is centered and trued for entry
into the bore. (Fig. 116)
Place a smooth, clean block of wood
against the rubber face of the seal.
Carefully tighten the vise and press
the seal into the bore. The seal
will seat with about half of its
thickness dimension still protruding
from the bore. This protrusion
serves as a pilot while reinstalling
the plate on the flange. (Fig. 117)
Install a new seal plate o-ring in
its groove. Use clean heavy grease
to hold the o-ring in place.
If the motor drive shaft is keyed,
cover the keyway with thin tape to
protect the seal lip as it travels
down the shaft. If the shaft is
splined, coat the splines with clean,
heavy grease. (Fig. 118)
72
7.
8.
9.
10.
11.
FIGURE 115
FIGURE 116
FIGURE 117