35
3. Shaft Seal Assembly
4. Spring
5. Spring Guide
6. Outer Seal
9. Using a new gasket, carefully reinstall
the seal retainer, retainer capscrews and
tighten securely. Install a new outer seal
on the shaft. Lubricate the outer seal
as necessary to make certain it slides
freely on the shaft and bottoms on the
seal retainer.
10. Reinstall the compressor pulley and
align with motor pulley. (See Section VI,
“Pulley Alignment”).
11. Reinstall and tighten drive belts by
repositioning the motor. (See Section VI,
“Belt Tensioning”).
12. Recheck pulley alignment and drive belt
tension and correct as required.
13. Run the unit and check for air or oil
leaks and correct as required.
FAN DRIVE SHAFT OIL
SEAL REPLACEMENT (Figure 14)
The fan drive shaft rotary oil seal may be
replaced as follows:
1. Remove the fan guard to shroud
attaching capscrews. Remove fan guard
halves.
2. Remove the shroud to frame attaching
and cover bolts. Remove shroud cover
and fan shroud if necessary.
3. Loosen the fan hub to fan drive shaft set
screws (there are two) and pull or tap
the fan off the shaft.
4. Remove the oil seal retainer to rear
bearing retainer attaching capscrews
and remove the seal retainer with outer
seal. Discard outer seal.
5. Remove the oil seal assembly, including
spring and spring guide, from the fan
drive shaft. Discard the seal assembly.
6. Remove the oil seal face insert, with o-
ring seal, from the seal retainer. Discard
the face insert, with o-ring seal.
7. Thoroughly clean all remaining parts.
(Retainer, seal cavity, shaft, etc.)
Remove all traces of gasket material
from the seal retainer and rear retainer
mating surfaces. Check the condition of
the shaft and remove all nicks and burrs.
8. Lubricate the new seal face insert with
clean compressor oil and install the seal
retainer.
9. Lubricate the rotary seal assembly with
clean compressor oil, including the
carbon ring, and install the seal spring
guide, spring, and seal assembly on the
fan drive shaft.
NOTICE
BE CAREFUL NOT TO SCRATCH THE
SEAL FACE INSERT OR SCRATCH OR
BREAK THE CARBON RING OF THE SEAL
ASSEMBLY. WIPE THE LAPPED
(MATING) SURFACES OF THE SEAL
INSERT AND CARBON RING WITH A
CLEAN LINT FREE CLOTH BEFORE
INSTALLING THE SEAL RETAINER.
10. Using a new gasket, carefully reinstall
the seal retainer, retainer attaching
capscrews and tighten securely. Install a
new outer seal on the shaft. Lubricate
outer seal as necessary to make certain
it slides freely on the shaft and bottoms
on the seal retainer.
11. Reinstall the fan on the fan drive shaft.
Tighten the fan hub set screws securely.
12. Install the shroud to frame attaching
bolts and tighten securely. Reinstall fan
shroud cover.
13. Reinstall the fan guard on the shroud.
Tighten attaching capscrews securely.
14. Following the start up procedure, start
and run the unit long enough to reach
normal operating temperature. Check for
and correct all leaks.
Servicing or replacement of control valves or
switches, shut down switches and the oil
cooler do not require specific instructions for
disassembly and assembly.
WARNING
WHENEVER A UNIT IS BEING SERVICED,
MAKE CERTAIN THAT AIR PRESSURE
HAS BEEN BLED DOWN AND THE
ELECTRICAL POWER ISOLATED FROM
THE COMPRESSOR.
COMPRESSOR DRIVE SYSTEM
The V-belt drive systems installed in the CL
compressor were designed for optimum
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