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1. Equalizer Tube and
Lock Screw Assembly
2. Lockwasher
Figure 6-12 Equalizing Tube and Lock Screw
7
8
9
10
1. Capscrew
2. Cap
3. Crankshaft
4. Thrust Washer
5. Rotor Drive Key
Figure 6-13 Crankshaft Assembly
6.8.3 Compressor Reassembly
Clean all compressor parts, use a suitable solvent with
proper precautions. Coat all moving parts with the
proper compressor oil before assembly. Refer to
Table 6-8 for applicable compressor torque values.
6.8.4 Preparation
a. Suction and Discharge Valves
If the valve seats look damaged or worn, replace valve
plate assembly. Always use new valves because it is
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2
3
3. Counterweight --
Motor End
Assembly
6
5
3
2
1
6. Connecting Rod
7. Compression Ring
8. Piston
9. Pin
10. Retainer
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difficult to reinstall used valves so that they will seat as
before removal. Any valve wear will cause leakage.
1
1
1. Suction Valve
2. Suction Valve
Positioning Spring
Figure 6-14 Suction Valve & Positioning Springs
Suction valves are positioned by dowel pins (see Figure
Figure 6-14). Do not omit the suction valve positioning
springs. Place the springs so that the ends bear against
the cylinder deck (middle bowed away from cylinder
4
deck). Use new gaskets when reinstalling valve plates
and cylinder heads.
b. Compression Rings
The compression ring is chamfered on the inside
circumference. This ring is installed with the chamfer
toward the top. Stagger the ring end gaps so they are
not aligned.
Figure 6-15 Piston Ring
The gap between the ends of the piston rings can be
checked with a feeler gauge by inserting the ring into the
piston bore approximately one inch below the top of the
bore. Square the ring in the bore by pushing it slightly
with a piston. The maximum and minimum allowable
ring gaps are 0.33 and 0.127 mm (0.013 and 0.005 inch)
respectively.
6-8
2
3
3. Valve Plate Dowel
Pin
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