3-5
4.
Insert the oil feed guide with the large diameter
in. Insert the guide retaining spring so that it fits over the
smaller diameter of the feed guide. The pump cover can
now be installed.
5.
Place the pump cover, with a new gasket, over
the guide retaining spring and compress the spring to
enable installation of the cover capscrews.
3.5
SHAFT SEAL
a. Disassembly
1.
Remove 6 capscrews, remove shaft seal cover or
clutch mounting hub and carbon washer. (See Figure 3-8)
2.
Tap seal end of crankshaft to loosen seal grip on
shaft. Using two long screwdrivers, pry out the shaft seal
but do not damage gasket surface. (See Figure 3-9)
2
1
5
4
3
Used with
Housing Mounted Clutch
1
2
3
5
6
7
8
9
Standard
Shaft Seal
1. Shaft Seal
2. Carbon Ring
3. Gasket
4. Seal Plate
5. Hex Head Screw
6. Clutch Mounting Hub
7. Snap Ring or Nut
8. O-Ring
9. Wear Ring
Figure 3-8. Shaft Seal
Figure 3-9. Shaft Seal Removal
b. Reassembly
1.
Install new shaft seal assembly, cover gasket, and
cover plate only. Never install a used seal assembly or
gasket. A new carbon washer should never be installed in
a used cover plate. When installing the seal assembly, use
care not to damage carbon washer or seal seat.
2.
Remove new carbon washer from new seal
assembly. Lubricate shaft and neoprene seal bellows
where it contacts the shaft. Slide seal assembly onto shaft
until neoprene bellows start to grip the shaft.
3.
Install the
OLD
carbon washer in the new seal
seat. Install two capscrews in opposite sides of the old
cover plate. Draw up capscrews evenly to properly
position new seal assembly against shoulder on shaft.
Remove capscrews and old carbon washer and cover
plate.
4.
Lubricate new carbon washer and carbon washer
seal seat with refrigerant oil. Install new carbon washer in
seal seat, taking care not to damage the carbon washer or
the seat. Ensure that notches in carbon washer are
aligned with two small knurls inside the seal seat. Install
the new cover plate and gasket. Draw capscrews down
evenly to prevent damage to carbon washer.
NOTE
Do not touch carbon washer sealing surface with
your fingers.
3.6 COMPRESSOR RUNNING GEAR REMOVAL
In order to disassemble Piston, Rod and Rings, first
the cylinder head, oil pump and shaft seal must be
disassembled (Refer to sections 3.3, 3.4 and 3.5 ).
a. Bottom Plate, Strainer, and Connecting Rod Caps
1.
Turn the compressor over, bottom side up, and
remove the bottom plate. (See Figure 3-10) Scrape off
gasket.
2. Remove the oil strainer.
1
2
1. Bottom Plate
2. Oil Strainer
Figure 3-10. Bottom Plate Removal
3.
Match mark each connecting rod cap and
connecting rod for correct reassembly. Remove the
capscrews, flat washers and connecting rod caps. It is
recommended that the capscrews and flat washers be
discarded and new capscrews (special) and flat washers
be installed during compressor reassembly. (See
Figure 3-11)
