c) Disconnect oil supply line and drain line from the shaft
seal cover.
d) Loosen eventy the balts from the shaft seal cover_
e) Remove the shaft seal cover (9). The flange can be
broken loose by tapping with a •soft" hammer.
f) Remove the shaft seal housing (5). Use screws in the
three tapped holes to
remove
the housîng easlly. lf the
pin (13} is sheared or bent, remove trom seal
housing (5).
g) Remove the rotating seal assy by pulling it off the
shaft by hand.
h) lf the pin (2) is sheared or bent,
remove trom
drive
ring (16).
PREPARATION
a) The seal has a secondary seal (12) which seals
against the shaft. Check that this secondary seal ring
is uniform around its periphery even though the seal
is brand
new.
b) Place the seal (4) on a clean flat surtace wîth the car
bon face up.
c) Check the shaft tor any burrs or sharp edges which
could cut the seal when it is later slid over the shaft.
Remove all burrs and brake all sharp edges.
IMPORTANT
Be careful not to let any material get into the bearing area.
d) lnspect and clerui the shaft where the seal is going to
be mounted especially in the vicinity of the secondary
seal. Remove oil carbon deposits with a light solvent
(such as mineral or methylated spirits).
e) Clean all parts thoroughly.
Wipe
off any foreign mate
rial and use a light solvent to
remove
old carbon de
posits. Check all parts for burrs and break any sharp
edges which are found.
f) Make sure bath the oil supply armee and the oil draln line
în the new cover (9) are open and the threads are clean.
g) Oil the shaft and the inside of the rotating seal mem
ber (4) with clean refrigerating oil. Check that the car
bon face is absolute clean with no surface scratches.
INSTALLATION
a) lf a new pin (2) is required, install in drive ring (16) by
tapping with a hamrner. lnstall the seal assy over the
shaft. Slîde the seal down the shaft until it con'tacts
the drive disc (16). Check to make sure that the seal
assy fits over the drive pin (2) .
IMPORTANT
The seal assemb)y must be started squarely over the shaft
by hand force. Jf the seal assembly becomes locked on the
shaft, remove and start again. Excessive force should11J)]
be necessary. Extreme caution must be exercised not to
damage the lapped carbon surface and to keep it clean and
not to da,mage the inner O-ring of the seal assy.
b)
IMPORTANT
Tap very lightly and evenly with a blunt punch or large
screw
driver around the seal body casing to move the seal
up against the drive ring. Use care not to hit the calbon.
c) Make sure that the (new) roll pin (13) is mounted in
the seal housing (9).
l
2 3
4
5 6
Page7.2
=-�4=:�-12
0
,
•~· ,
,,,,..._.
.•,.·.·.·.·.·•···'····•2e�l---4i'4---13
17 16
15
FIG. 7.1 SHAFT SEAL ASSEMBL Y
Compressor Package GSLP
14
11
1
.
ball bear,ng
2. drîve pin
3. oil oVerflow hole
4. shaft seal cage
5. sha!t seal housing
6. outlet housing
7. oil supply port
8.0-riog
9. shalt seal cover
1 o. carbon slî p ring
1 1. male
rotor
shafr
12. 1efion secondary seal
13. lockpin
14. coil spring
15. drive disc
16. secur\ng pin
17. oil leakage drain
92.01
