Gradall LOED 534A, Service Manual

Page: 67 / 91

Install stud (42).
S e e a p p l i c a b l e s e a l R e p l a c e m e n t
I n s t r u c t i o n s .
Install o-rings (35) on bearing
extensions of flange plate (1).
Install o-ring (33) in the flange
plate groove. Use clean heavy grease
to hold the oring in the groove.
(Use caution while the seal is being
moved down the shaft. If the shaft
extension is splined, heavy grease
applied to the splines will help
prevent damage to the seal. If the
shaft extension has a keyway, a thin
piece of shim stock covering the
keyway will prevent cutting of the
seal.)
Complete installation of the flange
plate (1) by following applicable
portions of the procedures described
in Step 40. Use the same precautions.
Install washers (22) and nuts (21).
The nuts should only be run down
until they are snug.
Place the motor in a machinist vise,
using a clean block of wood between
the flats on each side of the motor
and the jaws of the vise.
Tighten two opposite nuts on each
end and apply a torque of 80 to
90 lb/ft.(165-175 lb/ft. on SPM25)
(Fig. 105)
45.
46
.
51.
47.
48.
49.
50.
If the shaft will not turn properly,
disassemble the motor and examine
the parts for burrs or foreign
material causing interference with
the moving parts.
Remove the cause and reassemble the
motor.
When the shaft turns properly,
tighten all remaining nuts and
apply a torque of 80 to 90 lb/ft.
each (165-175 lb/ft. on SPM25).
R e m o v e t h e m o t o r f r o m t h e v i s e t o
a s s e m b l e t h e v a l v e p a r t s i n t h e
v a l v e b o d y ( 3 ) .
53.
Use 10" wrench and check to see
if the drive shaft will turn freely.
The shaft will be tight but should
turn with a maximum of 5 to 10 lb/ft.
of torque applied. (Fig. 106)
52.
56.
54.
55.
67
FIGURE 105
FIGURE 106