PS Magazine - TB 43-PS-445
PS, The Preventative Maintenance Monthly
ISSUE 445
DECEMBER 1989
Aircraf Tires .±²
Y
u've
got to use the right amount of pressure if you want your bird's tires
to get the job done.
You've also got to be able to recognize when the tires are woR out or cut
beyond limits so you can replace 'em beFre it's too Late.
Here's a handy
t
chart Fr all rotary wing models, including t±ose with
landing gear and those with skids that use ground handling wheeLs²
³IRCR´Ft
POSItION
CUµ LIM¶µ (¶n·h)
P¸ESSU¸E (PS¶)
¹H-64
mlG
3/
3
2
100-º10*
¹H-64
»lG
3/
3
2
95*
¼H-47
¹½½
3f2
88
¼H-54
¾lG
±2
115-120
¼H¿À4
mlG
±2
º35-º40
uH-60
mÁG
42
130º40*
uH-60
ÃlG
3/
3
2
1º5-º25*
¹H-º
GH
3f2
70
oH-6
GH
±2
80-90
oH-58
GH
±2
9Ä
uH-º
GH
3f2
50
*
Use regulaTed niTrogen pressure source
²³
DEC 89
I\
Always gage tire
pressure when the tire's
cooL or you won't get a t³e reading´
This is because pressure varies wit±
temperature. Use tire pressµre gage,
NSN
´µ10-00¶·0´¸¹170.
If you ¶·d a tire t±at's low on pres-
sure, use remote co·tro¸ tire in¹ator
assembLy, NSN
66º5¶00-1·´»´¹¹6,
to
i·¹ateº
Use dept± gage, NSN
5·10»00»¹57»
5µ51,
Fr measuring the dept± of cµts.
»irst measure the dept± of t±e re-
mai·i·g tread. ¼hen measure t±e depth
of t±e cut. Subtract t±e depth of the
remaining tread ½om t±e depth of t±e
cut.
DEC89
²¼
¸imits, rep¸ace t±e tire¾
'
"
R=½¾
i
¿ÀÁ
--
·
¼able
¹»1
of ¼M
55»·6·0»·00»·´
±as detailed i·structio·s Fr insPecting
aircraft t¿res.
KÅÅp ÆirÅs iÇÈÉÊËÅd ÆÌ
ËÍÅ prÌÎr prÅssÏrÅ
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