TM 10-8145-222-23
0014
SERVICE CONTINUED
Refrigerant Leak Check
Perform a refrigerant leak check on the refrigeration system if the system was opened for any reason and after all
repairs as follows:
WARNING
MTRCS doors are very heavy and solid objects. Make sure that doors are secured to
the frame of the container when open. Wind gusts can be strong enough to slam the
doors shut with great force causing serious injury or death to personnel.
NOTE
In order to get a complete leak check on the system, and subsequently pull a
complete vacuum, it will be necessary to manually open compartment 1 and
compartment 2 liquid solenoid valves using a doughnut magnet. These valves will
remain open for the entire procedure.
1. Open side and rear doors and secure using attached door chain.
NOTE
The evaporator cover is hinged to the evaporator front cover and swings down after
removal of mounting hardware. After removal of the sensors attached to the cover,
the cover can be completely removed by unhooking it from the front panel, if desired.
2. Remove two bolts (Figure 5, Item 1) and washers (Figure 5, Item 2) securing evaporator cover (Figure 5,
Item 3) closed and carefully allow evaporator cover to swing down. Repeat for other evaporator cover.
NOTE
The hot gas solenoids may be removed if necessary. Tag to prevent confusion.
3. Remove compartment 1 and compartment 2 evaporator liquid solenoid valve coils (Figure 5, Item 4), (WP 0047,
Replace) and hot gas solenoid coils (Figure 5, Item 7), (WP 0048).
4. Install doughnut magnet (Figure 5, Item 5) over compartment 1 and compartment 2 liquid solenoid valve
(Figure 5, Item 6) and hot gas solenoid valve (Figure 5, Item 7).
Each solenoid will energize and an audible clicking will be heard signifying the valves open.
Doughnut magnet remains installed on compartment 1 and compartment 2 evaporator liquid and hot gas
solenoid valve coils for entire procedure, and during Evacuation and Dehydration procedure.
0014-9
