TM 9-4110-256-14
c. Remove two caps (3) and fully open two isolation valves (4). Install two caps.
NOTE
The compressor shut off valves can be adjusted to three positions, fully closed to block the
refrigerant tubes and isolate the compressor and service port, fully open to allow flow from
piping to compressor but not the service port, and cracked (one turn closed from fully open) to
allow flow from piping to compressor and service port on valve.
d. Remove two caps (5) and fully open two shut off valves (6). Install two caps.
e. Loosen four compressor mount locknuts (1, fig. 4-5). Loosen screw (2) until proper operating space (1.5 in.
(3.81 cm)) is reached. Shipping bracket (3) must remain clipped to spring (4).
Figure 4-5. Compressor Mount
f. Close both side condenser doors and both front bottom doors.
4-8. PRELIMINARY ADJUSTMENT OF EQUIPMENT.
a. Open control panel cover and secure open with door holder clips.
b. Remove two bolts (1, fig. 4-6) and lock washers (2). Open the control box cover (3). Discard lock washers.
4-7
