Battery - BOMBARDIER Elan Shop Manual

SECTION 05
SUB-SECTION 05 (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 4°C (10°F) above 27°C (80°F) and by
subtracting .004 points for every 4°C (10°F) below
2rc
(SO°F).
Refer to the following illustration.
THE ILLUSTRATION WILL AID YOU IN FINDING
THE CORRECT READING.
°c
OF
At 38 100
add
.008 to the reading
32
90
"
.004
t " "
27 80
correct reading
21
70
subtract
.004 from the
reading
16 60
" " .008 " " "
10
50
" " .012" " "
4
40
" "
.016"
t
r "
-1
30
" " .020" " "
-7 20 " "
.024"
t
r "
-12
10
" "
.028" "
t t
-18 0 " "
.032"
t
r "
-23 -10 " "
.036"
t
r "
-29 -20
t t
" .040" " "
-34 -30 t
r
"
.044
I I I I
I'
-40 -40 " " .048" " "
EXAMPLE NO.2
Temperature above 27'C (BO'F)
Hydrometer Reading 1.235
Acid temperature 3B'C (100'FI
Add ..OOB Sp, Gr.
Corrected Sp. Gr. is 1.243
EXAMPLE NO.1
Temperature below 27"C (BO'F)
Hydrometer Reading 1.250
Acid temperature·7'C (20'F)
Subtract .024 Sp. Gr.
Corrected Sp. Gr. is 1,226
Take reading
at eye level
Do not suck in
too much electrolyte
HYDROMETER TEST
INSPECTION
CLEANING
Visually inspect battery casing for cracks or other possi-
ble damage. If casing is damaged, replace battery.
Inspect battery posts for security of mounting. Inspect
for cracked or damaged battery caps. Ensure that vent
holes are unobstructed. Replace defective caps. If vent
hole is blocked, clean using a firm strand of wire.
WARNING: Some battery caps do not have holes.
Make sure that overflow tube is unobstructed.
WARNING: When disconnecting battery cables,
always remove the black negative cable first then
the positive cable (red). Care should be taken while dis-
connecting above mentioned cables otherwise battery
post breakage could occur.
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.
REMOVAL
_ 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 bat-
tery's state of charge.
(BATTERY), PAGE 1