Carrier 69NT40-541-306, Операция и обслуживание

Страница: 19 / 154

1–5 T-354
CAUTION
!
To prevent trapping liquid refrigerant in the manifold gauge set, be sure set is brought to suc-
tion pressure before disconnecting.
CAUTION
!
Removing the compressor motor press-fit stator in the field is not recommended. The rotor
and stator are a matched pair and should not be separated.
CAUTION
!
The copper tube that connects to the oil suction strainer extends out the bottom with the bot-
tom plate removed. Take precautions to avoid bending or breaking it while changing crankcase
positions.
CAUTION
!
Ensure that the thrust washer does not fall off dowel pins while installing oil pump.
CAUTION
!
The set screw on the crankshaft must be removed for this type of oil pump. (See Figure 7.9 .)
CAUTION
!
Use only Carrier Transicold approved Polyol Ester Oil (POE) - Castrol-Icematic SW20 compres-
sor oil with R-134a. Buy in quantities of one quart or smaller. When using this hygroscopic oil,
immediately reseal. Do not leave container of oil open or contamination will occur.
CAUTION
!
Take necessary steps (place plywood over coil or use sling on motor) to prevent motor from
falling into condenser coil.
CAUTION
!
DO NOT disassemble piston from NEW suction modulating valve powerhead assembly. Doing
so may result in damage to piston.
CAUTION
!
Do not remove wire harnesses from controller unless you are grounded to the unit frame with a
static safe wrist strap.
CAUTION
!
Unplug all controller connectors before performing arc welding on any part of the container.