PS Magazine - TB 43-PS-514
PS, The Preventative Maintenance Monthly
ISSUE 514
SEPTEMBER 1995
Dear EditoR
We've had probl±ms Insp±cting th± bufer ass±mbly on th± M109-
s±rles howiT±r²s recuperato³
T
´µ2350¶311·20-2 t±lls you to hold on to the shaF collar with a
pipe wrench whlle removing the slott±d nut and co¸t±r pin ¹rom th±
r±cuperatorºs should±r±d shaF.
But since the shaF Is under pr±ssur±, th± nut has a t±nd±ncy
to »y o¼ sudd±nly wh±n It½s b±ing loos±n±d. ¾hat can b± dang±rous
¿¹ you ½re ¿n the wayÀ
AF±r you ¹inally g±t the nut oÁ the pressure causes the shaF to
r±tract slightlyÀ ¾hat l±av±s too ¹±w thr±ads to Install a n±w slo¸t±d
nut late³
We½ve ¹abricated a simpl± spac±r that pr±v±nts those probl±msÀ
Here²s how It works:
1
•
Make spacer by cuting faT washEr,
NS±
5±(±²7-74,
In halF
2.
Place
spaCer
B²³
sha´
coLLaR aµd
¶eCU·¸a¹or
hoUsing
3³
ºooseµ
sLoted µu»
Sha´
wil
move ¼ack
aga½µs¹
spacer,
¾eµ s¹op
PresSure on the nut Is r±liev±d so It wonÂt Ãy o¼Ä And once the
nut'Å oÆ there are pl±n¸Y o¹ threads l±F to Install the n±w nutÀ
Peter Kohler
&
Çobert Èalkenstein
1ÉÉthAÊG
±
V/ËeÌkÍ GeÎÏany
,.²³´µ ¶· ¸
¹º
»
±;·•²--³³´
f:mseWt
±
d
Sl nL /'
PS ´µ¶
··
IL
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