K 1500 Suburban 4WD V8-6.5L DSL Turbo VIN F (1999)
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Use the proper wrenches when you make connections on the O-ring fittings.
Back-up the opposing fitting with a wrench in order to prevent distortion of the following areas:
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The connecting lines
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The components
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Tighten all of the tubing connections to the specified torque.
Too much or too little torque may result in the following conditions:
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Loose joints
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Deformed joint parts
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Refrigerant leakage
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An inoperative A/C system
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Ensure that the O-ring and the seats are in perfect condition.
A burr or a piece of dirt may cause a refrigerant leak.
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Install new O-rings that you have lubricated with the mineral base 525 viscosity refrigerant oil. Do not use Polyalkylene Glycol (PAG) synthetic
oil. Do not wipe the threads with a cloth.
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Keep PAG synthetic refrigerant oil oft fitting threads. Long term contact of PAG synthetic oil on threads may cause future disassembly difficulties.
Flush threads of fitting with mineral base 525 viscosity refrigerant oil. Do not use PAG synthetic oil. Do not wipe threads with a cloth.
