PS Magazine - AUGUST 1985
PS, The Preventative Maintenance Monthly
ISSUE 393
AUGUST 1985
Gear CAse Lube .
.±
Lack of lube or overlube of a gear
case can let your equipment down .
±
,²
Too little lube anD those gears get
I
hot and chew on each other.
·
Too mUch ³ube and gear case seals
blow.
When you're checking the lube level
in your gear cases-diFerentials´ transµ
fEr´ manual transmission and the like´
do it right:
'
Park yo¶r vehicle on a level area.
If
you've
been
operating
your
equipment´ wait ·ve M¸Nutes be¹re yoU
take oUt the gear case ·ll/check plug.
Heat expanDs the oil´ so you neeD to
let it cool anD settle down to normal.
l
Check the lube levelº »or most gear
cases´ it's OK if the lube level's within
1¼2 inch of the bottom of the ·ll/ check
holeº But chec½ your LO anD ¾¿ to
see if a DiÀÁÂrent level is speci·eDº
¿easure the leveà by putting your
little ·nger in the hole and benDing the
·rst joÄnt downº If you can touch the
oil´ the ÃevÂl's Oź
i
•
²ppRox 3"
-±
.
-
1
T
1%³
_:±-
J
F
i
lE
gRoovE
Fu Ii
´EvE´ iS µt
Bottom EdgE of
check-fill
ho´E
If oil ´EvEl
iS BE´ow thiS
mark, a
dd
oil
Since a Æt Çinger coulD winD ¶p
weDDÂD to a gear case´ you May want
to use a gAge.
¿a½e an oil chec½er Èom a piece of
metal abo¶t 1/4 Änch wiDe´ li½e soÉ
l
BÂnd on enD to ma½e a right
angle with a 1 1¼4Êin shaftº
Ë
»iÃe
a
groove
1/2
inch
Down
the shaft.
ÌÍ
'
¿ake a loop hanDle on the other
endº
When you Meas¶re Îh lube level´
make sure your gAge rests on the
bottÏm of the Çill/chec½ hole.
If the Ãevel's below the groove´ aDD
oil to bring the lÂvel up to the bottoM
of the Çill/check hole.
±G²
)
'
OvERlubIng HuRts
.
PUmping too Ðst can build uÑ lube
in the gear caseº Gear operation Ma½es
heat. Heat expands the Ãube. Too much
lube blows seals.
Pump slow and easy. Then wait a
couple of minutes be¹re replacing
Ò
the
ÓÔ/check
pl¶gº
Let
any
excess
oil
drain out.
±EliEvE PREssuRE
·
AUG 85
You're not Done yet! ChÂc½ tÕe Öear
case breathers to ma½e s¶re they're
Doing theÄr jo×.
Breathers can pÃug up wÄth mud or
dirt. Twist the cap to get riD of DÄRtº
Tap the cap a coupÃa tiMes to mA½e sure
the
springØloaDed
valve
insÄDe
Äs
wor½Ùng OÅÚ
If the breather's no gooD´ p¶t in
a
new oneº It's eAsiÂrÛanD chÂapÂrÛthAn
repÃacing bÃown sealsº
N²x ³n WAtER MIx
If you've oÜratÂD
³
AxleÝDeÂp watÂr´
you can bet your rubber Duck there's
water
in
the
DÄÞeßential.
àAterá
contaminated
oÄl
is
mÄghty
poor
lubricant.
Chan
g
e the oÄl!
43
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