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3.2.3.11.
to tighten fitting without over tightening. If leak cannot be corrected with tightening, system
must be evacuated (refer to Servicing, Section 13) and then fitting must be disconnected
and new thread sealant applied.
3.2.3.12.
a thin layer of thread sealant primer to fitting threads.
CAUTION: WHEN APPLYING THREAD SEALANT, TAKE EXTREME CARE TO KEEP SEALANT OFF
FIRST 2 OR 3 THREADS.
3.2.3.13.
CAUTION: WHEN APPLYING R-134A OIL TO FLARE AND O-RING, TAKE EXTREME CARE TO KEEP OIL
AWAY FROM FITTING THREADS
3.2.3.14.
galling or O-ring damage.
3.2.3.15.
values).
CAUTION: VENT SYSTEM PRESSURE VERY SLOWLY TO ASSURE COMPRESSOR OIL IS NOT
VENTED WITH THE NITROGEN. DO NOT LET AIR ENTER THE SYSTEM.
3.2.3.16.
After leak check is finished and system integrity is sound, turn off nitrogen source,
disconnect yellow charging hose from nitrogen source and slowly release nitrogen
pressure to zero.
3.2.3.17.
3.2.3.18.
3.3. Fault Isolation (Trouble-Shooting):
3.5.1
The following list of system/component failures and/or abnormal operation and possible
solutions is only a partial listing of what may occur. The more informed service personnel
are in the operation of the system and its various components, the less time will be required
to diagnose failures. Use this trouble-shooting list as well as all information contained in this
manual, to aid in diagnosing system faults. Contact Enviro Systems customer service for
any items not listed in this trouble-shooting list.
Copyright © 2020
Page | 17
Apply soapy leak check fluid to each fitting connection. If leaks are detected, attempt
Using a wire brush and cleaning solvent, completely remove old thread sealant. Apply
Apply Loctite thread sealant on all male fitting threads sparingly.
Apply a light coating of R-134A refrigerant oil to flare and/or O-ring to prevent metal
Tighten joints as required to stop leaks (refer to Table 1, Section 1.3 for torque
Close manifold valve.
System is now ready for charging.
Original Release
12037 N Highway 99
Seminole, OK 74868
Phone (405) 382-0731
www.enviro-ok.com
passenger
www.safran‐
ATA 21‐00‐60
‐solutions.com
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