Graco 208995, Instructions And Parts List

Page: 16 / 30

16 308060
Service
5. Disassemble the impeller bowls, working from the
top down.
a. Hold the first impeller with a spanner wrench
616637 and use a close fitting wrench to
loosen the impeller nut (32) 1–1 /2 turns. See
Fig. 8.
b. Place a 3/4 in. (19 mm) ID soft-steel, protect-
ing bushing, with a smooth turned end, on top
of the hex nut. Use a sharp downward blow
with a 1 foot (300 mm) length of pipe or tube
over the shaft (33) to loosen the collet (18).
See Fig. 9.
c. Remove the collet (18) and impeller (30). Do
not pry the impeller.
d. Remove all of the impeller bowl assemblies in
this way.
6. Inspect the shaft (33) for scoring or wear and
replace it, if needed. Check all bowls and impellers
for wear or damage and replace as needed. Install
new o-rings (9) on all impeller bowls (37b) and the
intake bowl (36a), then lubricate the o-rings in
place. Be sure the impeller nuts (32) rotate freely
on the collets.
7. To replace the bearings:
a. Use the short-nippled end of tool 177219 to
press out the bearings (37a) from all bowls
(37b) and the intake bowl (36a). See Fig. 10.
b. Use the long-nippled end of the tool to press
new bearings (36b, 37a) into the bowls. This
tool maintains the required 0.06 in. (1.6 mm)
dimensions of the impeller bowls as shown in
Fig. 10.
c. Thread the shaft holding tool into the bottom of
the intake bowl as shown in Fig. 11.
Procedure is continued on page 17.
ÇÇ
03129
Fig. 9
32 18
37
33
30
1 ft (300 mm)
Pipe
3/4 in. (19 mm)
ID Bushing
03130
Ç
Fig. 10
1
Pressing Tool
177219
9
37a
37b
0.06 in.
(1.6 mm)
Place long end down for
pressing new bearing
into impeller bowls.
1
03131
Fig. 11
1
Use Shaft
Holding Tool
218634
36a
36b
1
Pressing Tool
177219