2
st
Edition, April 22
th
, 2008
P2002 Sierra
M A I N T E N A N C E M A N U A L
SECTION F
ELECTRICAL
SYSTEM
pag.
F-4
2 - BATTERY
The battery is lead-type (model
FIAMM 6H4P
) and provides 12V DC current
with a capacity of 0.9 A for 20 hours.
2.1 - BATTERY REMOVAL
If battery needs to be removed, proceed as follows:
A)
Stop engine;
B)
Master switch OFF;
C)
Open the engine’s upper cowling to get the access to the battery on the left
side of the firewall;
D)
First disconnect the ground cable (negative) and then the positive cable
from the battery terminals;
E)
Remove battery and disconnect small electrolyte drain hose.
2.2 - BATTERY CHECK
Battery check should be performed every 100 hours or more frequently if
operating in warm climates.
A)
Unscrew battery caps;
B)
Use a densimeter to check the electrolyte and compare value with the fol-
lowing table:
Densimeter reading
Charge
1.280
100 %
1.250
75 %
1.220
50 %
1.190
25 %
1.160
Dead battery
An acceptable value should be between 1.250 and 1.280. If densimeter read-
ing is below acceptable range, re-charge battery and check again.
If necessary, add distilled water. Do not to allow electrolyte to overflow.
2.3 - BATTERY INSTALLATION
A)
Check the battery for traces of electrolyte and, if necessary, dry off with
cloth;
B)
Thoroughly clean the battery bracket area. A sodium bicarbonate solution
may be used for this purpose. Also check the battery drain tube;
C)
Master switch OFF;
