TM9-4935-481-14-1
C1
Table 3-17. Firing Mechanism Performance Test-Continued
Table 3-17. Firing Mechanism Performance Test
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
5
Position and secure to the OAF, insuring P2 is mated with the OAF.
NOTE
6
Connect 1W4-Pl to 1W3-Pl.
The major units and panels will be identified by the initials as
7
MCP
Connect 1W3-P2 to J8.
indicated below.
8
Connect the blue wire on the firing mechanism to 1W4-J2.
DMS-D
9
Connect the black wire on the firing mechanism to 1W4-Jl.
PP
POWER panel
10
Connect a 1W14 cable between the DMS-D J12 and the red probe to the TTS chassis.
MCP
MONITOR/CONTROL panel
11
TTS
MODE switch to TRIG OUTPUT.
DMM
DIGITAL MULTI METER
12
TTS
POWER switch to ON.
TTS
TRACKER TEST SET
NOTE
OAF
OPTICAL ALIGNMENT FIXTURE
Step 14 must be performed within 3 to 20 seconds of step 12
NOTE
actuation.
For fault isolation where marked by ( ) see pages at the end of
13
TTS
Momentarily actuate TEST START/STOP pushbutton.
this table and refer to firing mechanism information in TM 9-
1430-483-34.
14
TTS
Observe TESTING lamp illuminated.
1
Check the mechanical functioning of the firing mechanism by attempting to actuate the trigger without
15
Depress firing mechanism safety and then trigger.
depressing the safety. The trigger should not fully depress and a "click" should be heard.
16
TTS
Observe GO lamp illuminated.
Repair firing mechanism as per
(1)
17
TTS
Momentarily depress TEST START/STOP pushbutton.
TM 9-1430-483-34.
18
TTS
MODE switch to BORESIGHT.
2
19
TTS
Momentarily depress TEST START/STOP pushbutton.
3
Prepare the TTS for testing per TM 9-4935-480-14.
20
TTS
Observe TESTING lamp illuminated.
4
Remove adapter 1W4 from the lid of the DMS-D.
21
TTS
Observe NO-GO lamp illuminated before continuing.
4.1
SELECTOR A switch to G23.
22
TTS
MODE switch to TRIG SAFE.
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