JLG GRADALL 522D Owner's/Operator's Manual page 115

10. Apply Loctite 271 or Three Bond 1305 liquid
adhesive to capscrews. Install four capscrews
into case halves equally spaced and tighten to
48-64 lb-ft (64-87 N•m).
11. Install other capscrews into case halves. Tighten
the capscrews to 48-64 lb-ft (64-87 N•m).
12. Assemble Limited Slip Differential Case.
a. Follow steps 1 to 5.
b. Place flanged case half on bench.
c. Begin stacking of the disc pack with a drive disc
followed by driven friction discs. Make sure
lubrication grooves are aligned. Figure 4.7.
Figure 4.7
LUBRICATION GROOVES
Maintain the following sequence:
1) Drive disc
2) Driven friction disc
3) Drive disc
4) Driven friction disc
5) Drive disc
6) Driven friction disc
7) Drive disc
8) Shims (Do not stack until measurements are
complete.)
9) Compression disc
10) Thrust washer (on side gear side)
Asse m bly a nd I nst a lla t ion
T
T
d. Place disc pack stack in vise. Use micrometer
to determine "D", the height (thickness) of
limited slip disc stack (includes thrust washer
and compression disc). Take four readings,
one at each of four points. Average readings
to determine "D". Figures 4.8 and 4.9.
Figure 4.8
Figure 4.9
TOP
A
C
D
LIMITED
SLIP PACK
A: Differential case half flange to back of
differential side gear distance.
B: Differential case face to side gear seat.
C: Differential case half depth.
D: Stack height (thickness).
e. Use depth gauge to determine "C", depth of
differential case half. Take four readings.
Average readings for result. Figure 4.9.
Se c t ion 4
PLAIN HALF
SIDE GEAR
PLAIN HALF SIDE
GEAR MOVED TO
DETERMINE "A"
SPIDER
DIFF CASE
B
FACE
(DATUM)
PLAIN HALF
DIFF GEAR
PLAIN HALF
SIDE GEAR
25
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