This task covers
Tool Kit, Service Refrigeration Unit,
Section III, Item 7
III, Item 9
Manifold Gage, Charging and Testing,
Refer to TM 9-4120-408-24P for part
numbers of items to be replaced.
Wiring Harness, A106J1, leads disconnected, paragraph
5-22. (For replacement only)
General safety Instructions
Do not work on equipment without following standard
shop safety precautions.
Dehydrator must be replaced every time the air conditioner lines are exposed to the atmosphere. Failure
to obey this caution may result in equipment damage.
Inspect capillary tube (Figure 5-19, 1) and low pressure cut out switch S5
for leaks, cracks, or breaks. Ensure tape on capillary tube (1) is not damaged.
Cut out setting for low pressure switch S5 is 27 psi (186 21 kPa).
Cut in setting for low pressure switch S5 is 60 - 3 psi (413 21 kPa).
Ensure low pressure switch S5 (2) is set to a cut out pressure of 27 3 psi (186 21 kPa) (cut in pressure of
60 3 psi (413 21 kPa).
Remove spring clip (3) and protective cover (4) and check wire connections to low pressure cut out switch
S5 (2). Tighten loose connections.
Change 1 5-54