PS Magazine - MARCH 1986
PS, The Preventative Maintenance Monthly
ISSUE 400
MARCH 1986
If the chin strap on your SPH-4
flight helmet pulLs Loose from the
cloth retention
assembly,
chances
are it's one of the old straps.
The new chiN strap± ²S ² 8415³01³
057-3502, has a double end attaching
system that works much better.
Until you can replace your old
chin strap with a new one, here's a
temporary fix:
Add a steel washer, ²S² 5310³00³
167³0765,
under the slotted head
post. It'lL keep the grommet from pulliNg through the cloth.
Before you attach the chin strap to the
·
head post, tho, add some sealing
compound to the screw threads to keep the screw from comiNg Loose. ²S²
8030³00³2´7³2524 gets a 2³oz tube.
OV-1 Series .±²
S
top Guessing,
S
tart TOrquing
Some Moµawk mechs are not using a torque wrench to tighten wheel
retaining Nuts on the landing gear.
¶he result is damaged bearings when they overtighten, or bent wheel rims
when they undertigµten.
TM 55¸1510³213¸23¸1 specif¹es 100¸150 Lb³in for the nosewµeel nut.
For the main wheeLs± tµe TM says to torque the nuts to 15 lb¸ft± then back
oºf to near zero. Retighten to 5 Lb¸ft. ¶hen advance the nut to the nearest
cotter pin slot.
40
MAR 86
.,
±²·³
HoLD
ONE1 YoU GVyS.
THe Fm
h³MINQ
ant±²³´ Is rµ¶u·'
lAn´'
f¸¹ º»w¼½
)UR JaCK
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