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SERVICE MANUAL
Portable Air Condi oners
Compressor lubrica on
The lubrica on system is comprised of a
hollow sha , an oil scraper mounted at
the end face, hollow sha , a sha journal
(sha bearing), and the lubrica on groove
for the sha journal.
The lubrica on groove is wider than the oil
hole. When the sha turns, oil is scraped
upward by the oil scraper along the inside
diameter of the hollow sha . The oil is fed
through the oil hole by centrifugal force,
then supplied to the lubrica on groove
for each sha journal, lubrica ng the
bearing.
In this lubrica on system, oil enters into
each bearing separately and returns to
the oil reservoir. This system eff ec vely
prevents bearing temperature increases,
and off ers high reliability.
In addi on, the specially treated sha journal keeps the bearing from being
damaged during high temperature opera on.
Condenser
1) The condenser is a heat exchanger with
Louver fi ns.
2) Heat is given off and absorbed by air
being pulled across the condenser fi ns
by the axial fan. The air is then expelled
through the condenser air outlet.
Oil Feed Groove
Oil Hole
Oil Scrapper
Roller
Rotor
Cylinder
Hollow Sha
Eccentric Sha
