ELECTRICAL CIRCUIT TROUBLESHOOTING. - TM-9-2350-238-20-10117

TM 9-2350-238-20-1

Table 2-3. UNIT TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Remove left and right C02 access covers. Refer to page 2-923.

Hold

cylinder control valve (1) and remove safety pin (2).

Pull release harness (3). Check for internal binding. If binding, replace

cylinder control valve. Refer to page 2-1155. Firing pin (4) should

extend about 5/32 in. (4 mm). If not, notify direct support maintenance.

Reset

cylinder control valve (1) by rotating control handle (5) in

direction of reset arrow on cover (6). Rotate control handle (5) until

safety pin hole alines with safety pin hole in cylinder control valve (1).

Install safety pin (2).

112. DRIVER'S AIR PURIFIER UNIT DOES NOT OPERATE.

Check motor ground lead for bad connection.

Step 1.

Clean ground connections with crocus cloth (item 10, a.ppx C). Tighten

ground connections.

Troubleshoot driver's air purifier circuit. Refer to Electrical Circuit Symptom

Step 2.

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING.

a. Before performing any electrical circuit troubleshooting, refer to page 2-43 and ensure that all

mechanical troubleshooting procedures have been performed.

b. The electrical circuit troubleshooting table lists the procedures necessary to inspect/repair

applicable electrical circuits.

c. If you have a problem with an electrical circuit which is not covered in the steps below, notify

your supevisor.

2-91