Gardner Denver ELECTRA-SAVER II Service Manual page 45

SECTION
7
COUPLING
UP TOWARO OUTSIDE
DIAMETER OF COUPLING
'AD'u'EDG ~
OOWN
FIGURE
t
++ 1/16 MIN 1/8 MAX
TOWARD SHAFT
1-7. – INSTALLATION OF COUPLING CUSHIONS
/
SPLIT SLEEVE
I
FLuSH TO
1/16" BELOW
HUB SURFACE
FIGURE 2-7. – INSTALLATION OF SPLIT SLEEVE
COUPLING – The motor and compressor are direct con
netted by a resilient type flexible coupling Depending on
type coupling will have either several individual cushions
Figure 1-7, or a split toothed sleeve Figure 2-7. Neither
coupling type requires lubrication
If maintenance on mating parts is required reassemble
coupling as follows
Individual Cushion Design
(Figure 1-7):
1.
2.
3.
4.
Slide coupling halves over shaft extensions Be sure
collar is installed on shaft behind one coupling body.
Assemble motor to compressor.
Working through cover plate opening center cou
pling over gap between shafts maintaining gap as
shown in Figure 1-7 between the ends of the jaws on
one coupling body and the flange on the opposite
coupling body. Tighten set screws in each coupling
body.
Insert individual cushions as shown in Figure 1-7
and slide collar over cushions and secure with cap
screws Reinstall the cover plate
split
1.
2.
3.
4.
5.
6.
7.
Sleeve Design
(Figure 2-7):
Slide coupling halves over shaft extensions
Assemble motor to compressor.
Working through cover plate opening center cow
pling halves over gap in shafts See Figure 2-7 for
hub spacing
Fix position of short hub on shaft by securely tighten
ing set screws over shaft key and 90° to key.
Assemble halves of split sleeve over shaft and into
teeth of short hub
Slide long hub over split sleeve Split sleeve should
be uniformly flush to 1/16 below surfaces of each
hub (Figure 2-7).
Lock long hub in position by tightening socket head
capscrew- to clamp hub to shaft and tightening set
screw over shaft key securely Reinstall cover plate
Alignment — The coupling is permanently aligned by
the flanges on the compressor and motor.
13-9-630 Section 7
Page 1