TM9-4110-254-14
5-30.
DUAL PRESSURE CONTROL SWITCH S2 REPLACEMENT.
This task covers:
a
Removal
b. Installation
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Lock Washer (2)
Right side door open.
Self Locking Nuts (2)
Marker tags (4)
Tie Down Straps (as required)
a. Removal.
(1)
Loosen screw (1) and remove cover (2).
2) Tag wire leads (3). Remove two screws (4) and pull leads out of dual pressure control switch (5).
(3)
Remove two self locking nuts (6), bolts (7), and clamps (8). Discard self locking nuts.
(4)
Remove tie down straps (9) as necessary.
(5)
Tag each capillary tube (10) and loosen two flare nuts (11) from tees (12).
(6)
Remove grommet (13).
(7)
Remove two bolts (14), lock washers (15), and dual pressure control switch (5).
b. Installation.
(1)
Loosen screw (1) and remove cover (2) from new dual pressure control switch (5)
(2)
Install dual pressure control switch (5), two bolts (14) and new lock washers (15).
(3)
Using tags on old dual pressure control switch (5) for reference, neatly route capillary tubing (10) to tees
(12) and carefully coil excess tubing as necessary.
(4)
Aline each capillary tube (10) to tee (12) and tighten two flare nuts (11).
(5)
Install two clamps (8) around capillary tube (10). Install two bolts (7) and new self locking nuts (6).
(6)
Install grommet (13)
(7)
Push two wire leads (3) into dual pressure control switch (5) and using tags and wiring diagram (fig. 2-4),
install wire leads and screws (4) Remove tags.
5-61