Battery - BOMBARDIER 1980 Shop Manual

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
Y
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 possible
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.
HYDROMETER TEST
Hold tube
vertical
Do not suck
in
too much electrolyte
Take readmg
at eye level
SECTION
04
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 2JOC (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 sub-
tracting .004 points for every 4°C (10° F) below 2rC
(80°F).
Refer to the following illustration.
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.1
Temperature below 27"C (80°F)
Hydrometer Reading 1.250
Acid temperature .7°e (20"F)
Subtract .024 Sp. Gr.
Correcled Sp. Gr. is 1.226
.008 to the reading
.004 / I /I
/I
correct readmg
.004
from the
reading
.008
/ I / I / I
.012
1/ I I I I
.016 / I " /1
.020
1/ 1/ / I
.024
II II
/ I
.028
II
/ I
I I
.032
I I /I I I
.036
I I I I 1/
.040
/I I I I I
.044
1/
II II
.048
II
/ I
I I
EXAMPLE NO.2
Temperature above 27"C (80°F)
Hydrometer Reading 1.235
Acid temperature 38"C (IOO'F)
Add .. OOB Sp. Gr.
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 bat-
tery's state of charge.
(BATIERY) PAGE 1