TM 10-4130-237-14
5-9.
REFRIGERATION SYSTEM SERVICE (CONT)
16 Add refrigerant until charged with 3.75 lb (1.7 kg). If no scales available, charge until REFRIGER-
ANT SIGHT GLASS shows clear refrigerant with no bubbles.
17 When system is fully charged, close drum valve and suction valve.
18 Run water chiller for 15 minutes. If operation is normal, quickly disconnect hose from S (suction)
service port
19 Check REFRIGERANT SIGHT GLASS for the following:
CLEAR BUBBLE-FREE LIQUID: Shows that system is fully charged and dry.
GREEN CENTER: Shows that system is fully charged and has acceptable moisture content.
MILKY WHITE OR BUBBLY LIQUID: Shows that system has low charge. Repeat charging proce-
dure.
YELLOW CENTER: Shows that there is too much moisture in the system. Discharge system; replace
filter-drier (para 5–19);evacuate system; and repeat charging procedure.
20 Place toggle switch S3 in STOP position. Disconnect hose from D (discharge) Service port.
21 Install protective caps on two compressor service ports.
5-10.
COMPRESSOR SUCTION HOSE REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Equipment
Condition
Para
5-2
Engine stopped, power
disconnected, fuel line
disconnected, muffler
and housing removed.
Condition Description
Tools
Master Mechanic’s Tool Kit,
item 4, appendix B
5-38
