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 25 of 108
Step 4.
Press push switch (3) with red probe prod on pin A and black probe prod
on pin C of electrical receptacle connector (2).
a. If meter reads infinity (x) on OHMS scale, no fault.
Go to step 5.
b. If any other reading, faulty arming firing unit.
Replace arming firing unit.
Step 5.
Move toggle switch lever (1) to ARM, with red probe prod on pin A and
black probe prod on pin C of electrical receptacle connector (2).
a. If meter reads infinity
on OHMS scale, no fault.
Go to step 6.
b. If any other reading, faulty arming firing unit.
Replace arming firing unit.
Step 6.
Press push switch (3) with red probe prod on pin A and black probe prod
on pin C of electrical receptacle connector (2).
a. If meter reads zero (0) on OHMS scale, no fault.
Go to step 7.
b. If meter reads infinity
or any other reading on OHMS scale,
faulty arming firing unit.
Replace arming firing unit.
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TM 9-1040-267-20&P
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