TM-9-1040-267-20-P
LAUNCHER, GRENADE, SMOKE: SCREENING, RP, M243; RP, M257; RP, M259
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
FEBRUARY 1984
TM-9-1040-267-20-P - Page 26 of 108
2-12
TM 9-1040-267-20&P
Table 2-2. TROUBLESHOOTING PROCEDURES (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. ARMING FIRING UNIT WON’T FIRE DISCHARGERS - Continued
Step
7. Unscrew and remove lens (4) with preformed packing and lamp (p 2-49).
Press push switch (3) with red probe prod on pin A and black probe prod
on pin B of electrical receptacle connector (2).
a. If meter reads infinity (=) on OHMS scale, no fault.
None. Install same lens (4) with same preformed packing
and lamp (p 2-49).
b. If any other reading, faulty arming firing unit.
arming firing unit.
Replace
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