PS Magazine - TB 43-PS-512
PS, The Preventative Maintenance Monthly
ISSUE 512
JULY 1995
UH·60L .±²
FINER FILTER FA<TS
Dear Windy,
We've had our L-model Black
HawKs A couple of months now
and every TIme we add oi± to The
transmiss²on, the f³±Ter buTTon
pops soon aFteR What g³ves?
SG´B.S.Gµ
Dear Sergeant B.S±G²,
L-models have a transmission oil flter that will stop contaminants as small as
three microns³ The current transmission oil is only cleansed down to
5-7
microns´
It doesn't take long beFore
5³7
micron-µ¶lteREd oil running throUgh a 3·micron
flter will clog it¸
Old filter
New Fi´ter, NSN
Wen it does¹ change the flteº
cleansed
1µ¶¸1¹2µµ¹9º»8¼
but not the oil»
doW½ _to
CleA¾ses doWn
¿À mIcrons
to 3 MicronÁ
¼VentUallY th½s µ¾ner fltration
¿ill mean FeÀer flter Changes
and more reliable Áransmissions.
InitiallY hoÀeÂeà it meanÄ more
flter changes³
Keep in mindÅ tooÆ that Çhe
fltration system has Áwo µ¶lters»
In addition to the È·micron
primaÉÊ flteË thereÌ a
ÂÃÄ
micÍOn secondaÎÊ flteÍÏ Ðhen
you change the primaRÊ ÑÒlteº
also change the secondaÓÔ ÑÕlter
iÖ you fnd debris on the element×
t
ÅÅ
-±²³´µ¶·¸¹
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