105-MM I


HOWITZERSc17


C:ZI:


 You can ram yourself into the next world with the wrong rammer-extractor for
your 105-MM howitzer.
 It's easy enough to do because at least 6 different wrong models (some of them
very dangerous) are now in the field.
 With the wrong rammer a tip of the ramming plate can set off the primer.
 So, check all the rammers in your outfit and if you've got any that don't shape
up, ship 'em out. Here's how you check: EXTRACOR
 Look for the part number (on the extractor). 61/2" R TR
 Exroaor 1i/2"
 Howitzer Model Pert Number FULCRUM
 M101 or MIOAI 7306159 RAMMING
 M102orM108 11577644 PLATESM101 OR M1A
 Any rammer that can't pass the part number test should be taken out of service,
but even if the part number is right the rammer could still be wrong.
 Seems 2 or 3 different models were issued under the same part number. So
check both the fulcrum length and the distance between the ramming plates. You
have the right rammer only if everything matches up like this .
 Minimum distance between
 Howitzer Model Panrl umber Fulcrum Length ramming plates
M101 orMIO1AI 7306159 6h/ inches 1/2i inches
M102 or M108 11577644 6% inches I1/z inches
 20


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 Even with the right rammer you'ree still not home free and clear. If it's burred,
bent out of shape or banged up it's dangerous. so turn it in for a new one.
 Here're the FSN's and authority for the rammers:

M101 or MIO1Al (FSN 4933-730-6159) ..... Ch 5 to TM 9-325
MI02 (FSN 4933-927-7277) TM 9-1015.234-12
M108 IFSN 4933-927-7277) ..... .............. Ch 4 to TM 9-2350217-10
 So now you have the right rammer, and it's in good condition. You could still
blow things up by using it upside down.
 It's easy to figure out which is upside down and which is right side up. Just put
the rammer tool into the breech recess so the rounded edges of the ramming
plates will make contact with the cartridge case.


 This will happen with the MI101 and
M 101A 1 if you put the fulcrum into the
breechblock guides in the breech ring
with the tips of the extractor pointing
to the right.


 With the I102 or M108 you
position the tool so the extractor
tips are pointing straight down-
wards.


 RIGHT FOR MOI DOWN FOR
 AND MIOIAl M102 AND MIO8

 The fulcrum should slide freely in the guides. If you put it in right but it fits
so loosely it could tip in the guides it is too worn or damaged to use-so get a
new one.
 You don't need to use a lot of muscle. If you can't seat the cartridge easily, take
it out and put in a new one.
 21 i[--M ORE


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