TRANSMISSION-continued -714670040

TM 5-2420-224-34

Table 2-1. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

TRANSMISSION (CONT)

Check for air flow from air shift solenoid valve (2).

If there is air flow, reconnect fitting (1) and go to step 2.

If there is no air flow, go to step 3.

Step 3.

Check air shift solenoid for +24 VDC (refer to TM 5-2420-224-20-1, page 3-186).

If +24 VDC is not present, inspect and repair wiring 23A.

If +24 VDC is present, go to step 4.

Step 4.

Check air shift valve as follows:

a. Disconnect two fittings (1 and 2) from air shift valve (3).

b. Have assistant turn on vehicle MASTER disconnect switch and ignition switch

and depress clutch completely.

Check for air flow from either port (4 and 5) of air shift valve (3).

If there is air flow, note from which port air flows and perform steps

d and e.

If there is no air flow from either port, replace air shift valve (page

2-8.1/(2-8.2 Blank)