Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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R-4 Compressor

R-4 COMPRESSOR-0.170 kg. (6 ounces).
With no excessive oil leakage, add;
^ Compressor- Remove, drain oil, measure replace the same amount of new oil plus 0.0284 kg. (1 ounce).
^ Evaporator 0.085 kg. (3 ounces).
^ Condenser 0.0284 kg. (1 ounce).
^ Accumulator
^ Remove drain oil, measure, replace the same amount of new oil plus 0.057 kg. (2 ounces)
to compensate for that retained by the original accumulator desiccant.