PS Magazine - JUNE 1979
PS, The Preventative Maintenance Monthly
ISSUE 319
JUNE 1979
If you bird mechs want to save a lot
of sweat and elbow grease when
convert±ng from MIL-H²5606 toMIL³
H´83282 hydraulic flu±d, you have to
follow TB 55´1500-334-25 (May
75)µfor real!
It's not Uncommon for the job to be
done a couple of t±mes on the same
b±rd becAuse t¶e new, f±re-res±stant
flu±d doesn't pass the flash Po±nt test
at the oil analys±s lab. Too much of the
old oil rema±ns ±n the·system.
¸Course ¹ara 3º5 of the pub says you
have to sample the hydraul±c system
follow±ng an hour of fl±ght t±me. »
sample is also needed When you
ground run your converted hydraul±c
mule.
Take the OH´58» convers±on, for
example: »ppend±x ¼of the ½pub says
you have to
¾
remove and ¿lean the
as l±ttle as 3 percent of the old flU±d
rema±ns, you Won't have a f±re³
res±stant system .
.. the lab w±ll ask for
another sample.
'Course you also have to stenc±l the
new flu±d spec number on the sumP.
Be sure you stenc±l the top oF theÀ
reservoir on your K±owa. You can't see
the s±de of the reservo±r when add±ng
hydraul±c flu±dµW±th the coWl±ng
±nstalled.
»nother "mUstÁ is that yoU send at
least a 4Âoz sample to tÃe lab. The
standard oil sampl±ng bottle doesn't
hold enough hydraul±c flu±d to make
the flash po±nt test.
NSn
8Ä25-00²
174-0855 W±ll get you the r±ght s±ze
screW-cap bottle for 2Å cents each.
AFTER YOUr
BI±D Pas²e³
lL´ tµ¶·, Go
b¸CK
TO
u¹iºg
»H¼ ½¾¿ÀdÁÂÃ
ÄÅMpÆÇÈÉ
ÊËÌÍÆÎ!
43
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