Thermo King 914 724, Руководство пользователя

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Compressor and Clutch Maintenance (Rev. 1/99)
76
Pulley Arbor P/N 204-804
SYSTEM COMPRESSOR AND OIL
Installation of the Compressor
The compressor is mounted in the condenser section. The
side to side mounting angle of the compressor must remain
± 45° from the horizontal. The forward to backward angle
must be within ± 10° of horizontal. Access to the air condi-
tioning system service ports is from the top of the unit.
8932f
Each compressor comes with a standard charge of Polyol
Ester (POE) oil inside. This quantity of oil is enough to sup-
ply the compressor lubrication when it is installed into an
already “oil wet” system. New systems require an extra
quantity of oil be added to “wet” all the interior surfaces of
the system.
During normal operation there is always a quantity of oil
that travels around inside the system. This oil lubricates all
the components, returns to the compressor for a while, and
again travels around the system.
Adding Extra Oil to the System
The initial oil charge into a new system is based on the size
of the system and the amount of oil, which remains in the
compressor during operation.
The correct oil to use in the V250 using R-134a and
R-404A is Polyol Ester (POE) oil (TK No. 203-413).
Any extra or replacement oil should be placed into the
system at the receiver tank port.
CAUTION: Keep all oil containers tightly sealed
from the air. Oil tends to absorbed moisture from
the air and can become contaminated if left open. If
contaminated oil is put into a system, it may damage the
components of the system.
Major Loss of Refrigerant
In case of a major loss of refrigerant, it must be assumed
that some system oil is lost also. The oil level should be
verified by the “Checking the Oil Level” method in this
manual.