TM 9-4310-397-14
4-41. IGNITION SWITCH TESTING AND REPLACEMENT . - Continued
Testing.
NOTE
Ignition switch terminal A is not used and will not be tested.
(1)
Using a multimeter, check continuity as follows:
(a)
With ignition switch (6) pushed in, check continuity between terminals B to I, B to S, and I to S. No
continuity should be indicated.
(b)
With ignition switch (6) pulled out to first position, check continuity between terminals B to I.
Continuity should be indicated. Check continuity between terminals B to S and I to S. No continuity
should be indicated.
(c)
With ignition switch (6) pulled and held out to third position, check continuity between terminals B to
I, B to S, and I to S. Continuity should be indicated.
(2)
Replace Ignition switch (6) if it fails any of the above tests.
c.
Installation.
NOTE
Terminal and mounting hardware is supplied with most components and cannot be purchased
separately. Retain all hardware if original component is not being replaced. If component is
being replaced, use new hardware supplied.
(1)
Install IGNITION SWITCH (6) through back of control panel and secure with lock washer (5) and hex nut
(4).
(2)
Screw knob (3) onto IGNITION SWITCH (6).
(3)
Connect wire leads (2) using diagram (Figure 4-3) and tags and secure with terminal screws (1). Remove
tags.
(4)
Connect battery cables to batteries. See paragraph 4-49.
(5)
Close control panel door.
4-110
