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REMOVAL
+
WARNING: When disconnecting battery cables,
always remove the black negative cable first then
the positive cable
(red).
Care should be taken while
disconnecting above mentioned cables otherwise bat-
tery post breakage could occur.
CLEANING
Clean the battery casing, vent caps, cables
and
battery
posts using a solution of baking soda and water
.
_
CAUTION: Do not allow cleaning solution to enter
.... battery interior since
it
will destroy the electrolyte.
Remove corrosion from
battery
cable terminals and
bat-
tery posts using a firm copper brush.
INSPECTION
Visually inspect battery casing for cracks or other possi-
ble damage. If casting is damaged, replace battery.
Inspect battery posts for security of mounting.
Inspect for cracked or
damaged
battery caps,
replace
defective caps.
+
WARNING: Some battery caps do not
have
holes.
Make
sure that overflow tube is unobstructed.
HYDROMETER TEST
Do not suck in
too much electrolyte
Float
must be
free
Take reading
at eye level
SECTION 04 ELECTRICAL
SUB-SECTION 04
(BATTERY)
BATTERY
A hydrometer measures a battery's state of charge
in
terms of specific gravity. Most hydrometers only
read
true at 27°C (80°F).
In order to obtain
correct
readings, adjust the initial
reading by adding
.004
points
to the
hydrometer readings
for each
55°C
(10°F) above 27°C (80°F) and by
sub-
tracting
.004 points for every
5.5°C
(10°
F)
below 27°C
(80°F).
THE
ILLUSTRATION WILL AID YOU IN FINDING THE
CORRECT
READING
.
°C
OF
At
38
100
add
32
90
"
27
80
21
70
subtract
16
60
10
50
4
40
-1
30
-7
20
-12
10
-18
0
-23
-10
-29
-20
-34
-30
-40
-40
EXAMPLE NO
t
Temperature below
27
°
C
(80°F)
Hydrometer Reading
1
250
ACid temperature
_7°C
(20
0
F)
Subtract 024 Sp Gr
Corrected
Sp Gr
IS
1 226
"
"
"
"
"
"
"
"
"
"
"
.008
to the reading
.004
I I
I I
I I
correct
reading
.004
from the
reading
.008
I I
I I
"
.012
I I
"
I I
.016
"
/I
I I
020
I I
I I
I I
.024
I I
I I
I I
.028
I I
I I
I I
.032
"
11
I I
.036
I I
"
I I
.040
I I
"
"
.044
I I
I I
, I
.048
I I
I I
I I
EXAMPLE NO 2
Temperature above 27
0
C
(80
0
F)
Hydrometer Reading 1
.
235
ACid temperature 38
0
C
(lOa
D
F)
Add
008 Sp G,
Corrected Sp Gr
IS
1 243
_
CAUTION: Do not
install
a partially charged bat-
.... tery on a snowmobile since the casing may crack
at
freezing
temperature. The following chart shows
the freezing point of the electrolyte
in
relation to the
battery's state of charge.
PAGE 305

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