PS Magazine - NOVEMBER 1986
PS, The Preventative Maintenance Monthly
ISSUE 408
NOVEMBER 1986
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When you reassemble the bolt, get things straight. The cam actuator fts on the
bolt either way. BUt the wrong way damages the bolt. The cam actuator's roLler
end goes on the bo±t Frst. The actuator ho±e shoU±d match the bo±t hole.
The long end o² the frIng pin goes in tHe bolt Frst³ The sma±± ho±e iN the end
o² the gUide Fts on the short end o² the FriNg PiN. And the spriNg goes in the
guide. ´t's fring pin ³.³ guide ³.³ spRng.
Put it togeTher like this:
±
,.²
³´µ¶
·¸¹º
j-±²
oLT
G
±c²
rR ±o)
³«
Firin
f
pin
Spring
Cam acTuator
´² you snap the operating
r
Onto the bolt wrong, you risk a runaway gun. The
operating rod tower yoke mUst lock
between
the two µ pin spools. ´² you can
sE¶ the
Ti
end o² the ·¸ing piN, yoU've inst¹ºed the yoke w¸ong or the fring
piN's backw»rds.
´nstalliNg the se»r takes » bit o² care, too. KeeP the ¼at side o² the se½r up »nd
the r»ised edge to the rear o² the trIgger meChaNIsm.
When yoU adjUst the rear sIght elev»tion sCale, Use yoUr combo tool o¾ly. ¿²
yoU Use screwdrivers, yoU'll bUrr the elevatIon range plate screw.
¿² the gUide screw o² the chargIng handle is mIssing, notiÀ your »rmorer. Áe
can repl»ce it. Âever do the job yoUrsel².
I
m»y look sImple, bUt the wrong screw
can hU¸t bolt action and strip thr¶ads In the receIver.
14
LET Y
ARHOre
±lc m²
fW.
Check barrel for twisTs,
buLGes± Loose ²aRs and cracks
Your TM doesn't spe±l it oUt, but you must give both barrels eqUa± FriNg time.
That mEans chaNgIng barrels every 10 minutes during sustaiNed Fre
( 10
rounds
Per minute) »nd every
2
minutes dUring
rapid Fre
³2´
roUnds per minute). ´²
you leave one baÃel on too long, when
yoU chaNge barrels the bolt will
w
the
second barrel's socket area and the bolt
locking ±Ugs .
.³ Äst³ The idea is to ke¶p
bo±t time on each b»rrel aboUt eQu»±.
This keeps barrel socket wear eQUal and
extends both barre± and bolt liÅ.
If you don't chaNge The barre³s±
you wear ouT the so´Ket area
While FriNg, hold the trigger Ælly back tilL you're through friNg³ That s»ves
wear on the sear and se»r notch.
DoN'± ²E a R³´
Âever muscle Up on the traversing and elevating p±unger. You can damage both
the moUnt and plunger.
Âever Çrce the cocÈing handle. You can damage the cocking handle, sa²ety
or operating rod. A stubboÉ cocking handle is oÊen causeD by a saÅË set on
S (SAÌÍ) Instead o² Ì (Ì´Î).
Ï
Te±l your armorer i² your M60 won't budge.
When yoU travel, either hold your M60 or brace it. Âever let it lie loose on
a truck ¼oor. A good jo±t can loosen the ±ea² spring pin and bend the tÐIgger guard.
A loose lea² spring pin means the trigger mechanism grip assembly can come out.
A bent trIgger gUard can c»use a rUnaw»y gUn.
µOV 86
15
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