TM 5-4310-356-14
Table 5-1. Troubleshooting (Cont'd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
h. Inspect diaphragm (2) for cracks or breaks and general condition.
i. Inspect all threaded parts for damaged or defective threads.
j. Replace damaged or defective parts as necessary.
k. Reassemble the pressure switch starting with the enclosure (15) then frame assembly
(14), diaphragm (2), plate diaphragm (13), lever (12), toggle (1), toggle spring (10), contact
board assembly (7), conical spring (3), main spring (9), spring equalizer (8), top bar (6),
differential adjusting screw and nut (5), pressure adjusting screw (4), and cover (1).
l. Install pressure switch assembly on air receiver.
m. Connect all electrical wiring.
n. Turn on outside power source.
1.
Cover, enclosure
9. Spring, main
2.
Diaphragm
10. Spring, main
3.
Spring, conical
11. Toggle
4.
Screw, pressure adjusting
12. Lever
5.
Screw and nut, differential adjusting
13. Plate, diaphragm
6.
Bar top
14. Frame assembly
7.
Contact board assembly
15. Enclosure
8.
Spring, equalizer
Figure 5-6. Pressure switch assembly.
6. COMPRESSOR PUMPS TOO SLOWLY.
Step 1.
Check intake muffler to see if it is clogged.
(1) Remove wing nut (13), lower cover (14), screen (15), element (16), separator (17),
plate (18), upper cover (19), ferrule (20), and T-stud (21).
5-11
