Pre Fire Checks
How many recuperating locking nuts are there?
1
What technical manual covers daily PMCS for M109A7?
TM 9-2350-401-10-2
What's the tolerance when verifying boresight?
+/- 0.5
How many Total rounds can the M993A3 hold?
98
What is the max speed of the M109A7?
38mph
_______ should be cleaned with soap and water.
Obturator pad
explain each class for leaks
Class l
Class ll
Class lll
l- seepage of fluid( as indicated by wetness or discoloration) not great enough to form drops
ll- Leakage of fluid great enough to form drops, but not enough to drip from the item being checked/inspected
lll- Leakage of fluid great enough to form drops that fall from the item being checked/inspected
Describe NFL?
The displacement between aiming poles when looking through the gunner's sight
how many projectiles can the M109A7 hold?
42
How much fuel can the M109A7 hold?
145 gallons
What is the gunners Pre Fire checks?
ensure ESTOPS are disengaged
Verify direction with M2 compass
Ensure #1 cannoner, driver and chief is doing pre-fire checks
BONUS QUESTION WORTH (600)
WHAT IS FCAT
AND WHAT ORDER SHOULD FCA BE DONE IN?
Fire Control Alignment Test
Fire Control Alignment should be done in this order.
1- Roll offset
2- Elevation offset
3- Azimuth offset
What is a DAP? And what's the minimum distance?
The minimum distance for a Distance Aiming Point is 1500 meters
Could you describe the misfire procedure for a cold tube?
Failed to fire
primer fire?
yes- wait 2 minutes, remove primer
. No- attempt to fire 2 more times.
Failed to fire
Wait 2 minutes, remove primer, and see if it fired
Yes, it fired- clean vent hole, attempt to fire
No, it didn't fire- replace the fire mechanism and new primer
still doesn't fire, wait 10 minutes, remove charge, and unload weapon
What is the maximum rate of fire and the sustain rate of fire for the M109A7?
SUSTAIN: 1 ROUND PER MINUTE
MAXIMUM: 4 ROUNDS PER MINUTE FOR 3 MINUTES
What is all the pre fire checks as a number one cannoneer?(not the categories)
TUBE: rear face of gun tube flush with forward shoulder of breech ring, rear face of gun tube is no more than 5 inches from rear breech ring
Voltage green
BREECH: witness marks aligned, fire mech and block assembly serviceable, and primer vent hole clean
Rammer Reliability check
RECOIL SYSTEM: index guide pin 1/4-3/4in, recuperator locking nut cotter key properly installed, recoil locking nut properly installed, replenisher gauge 17-24 not firing, 17-50 when firing.
When should operator-level maintenance be performed?
Before, During, After, Weekly, Monthly
What is the M117A2? and where is the elevation indicated on?
M117A2 is the gunner's sight, and the elevation is indicated on the elevation counter
Feild Artillery ammunition is classified according to type as......
Semi-Fixed and Separate Loading
This is used to power down the elevation mechanism, the traverse mechanism, and the projectile rammer.
ESTOP
What are the driver's Pre-fire checks?
Index guide pin
Ventilation
Ensure the fire mission is correct on the Smart Display unit
DOUBLE POINTS (1000 POINT TOTAL)
NOT PMCS RELATED
MATCH THE PROPER TOOL WITH FUZE ON PAPER
M577 M1155
M732 M18
M577A1 M27
M782 M35
M739
M577 (M18)
M732 (M27)
M577A1 (M35)
M782 (M1155)
M739(M18)
What's the sequence of fire?
warning order
piece to follow, piece to fire, method of fire
Special instructions
Projectile
Ammunition lot
Charge
Fuze
Fuze setting
Deflection
Quadrant
Method of fire for effect
What does EPIAFS stand for?
Enhanced Portable Inductive Artillery Fuze Setter
What is TLABSPAP?
TRAILS
LAY
AIMING PONT EMPLACED
BORESIGHT
SECONDARY CIRCLE
PRE FIRE CHECKS
AMMUNITION PREPARED
POSOTION IMPROVMENT