TM 10-8145-222-23
0055
REPLACE CONTINUED
NOTE
Pens and LED display may delay response to key input.
2. Press and release CHANGE CHART key (3) on temperature chart recorder keypad (Figure 2).
Green and red pens begin moving towards left outside area of chart.
Figure 2. Temperature Chart Recorder Keypad.
3. When both pens have stopped above outer ring, unscrew chart hub knob from center of chart.
4. Remove old chart paper from center hub.
5. Shut down refrigeration unit if running (TM 10-8415-222-10, Operating Procedures).
6. Disconnect battery (WP 0053, Disconnect).
7. Disconnect external electrical power if connected (TM 10-8415-222-10, Operating Procedures).
NOTE
A new temperature chart recorder will come with both temperature chart recorder
sensor cables and a power cable already attached. The temperature chart recorder
sensor cables will be completely removed from the MTRCS for each evaporator and
remain attached to old temperature chart recorder when removed.
8. Remove two bolts (Figure 3, Item 1) and washers (Figure 3, Item 2) securing evaporator cover (Figure 3,
Item 3) and carefully swing cover open.
9. Cut and remove tie wraps (Figure 3, Item 6) securing return air sensor (Figure 3, Item 4) and temperature chart
recorder sensor (Figure 3, Item 5) to evaporator cover (Figure 3, Item 3).
10. Carefully pull sensors through hole in evaporator cover (Figure 3, Item 3).
11. Cut tie wraps as needed and carefully pull temperature chart recorder sensor (Figure 3, Item 5) out of
evaporator (Figure 3, Item 8).
12. Cut and remove tie wraps, as needed, from temperature chart recorder sensor (Figure 3, Item 5) cable between
evaporator cutout and location where cable passes through container forward wall (Figure 3, Item 9).
