MOTO GUZZI V1000 G5 Workshop Manual page 127

works in an overcharged condition and will deterio-
rate quickly.
3 If the battery discharges quickly, the electrical
system should also be checked over.
4 In case new or second hand batteries are left
unused for fairly long periods of time, it is a good
rule to re-charge them every month,
S Always keep the battery terminals spotlessly clean
and smeared with neutral vaseline.
6 Always keep the battery cover dry, avoiding over-
ftows of electrolyte which will reduce insulation and
corrode battery brackets.
NB
If the batteries are for use in tropical climates
(average temperature higher than 33' C (91' F) it Is
recommended to reduce acid gravity to 1.230.
C Measuring density and temperature of electrolyte
(fig. 179)
Th is operation should be carried out periodically in
each cell after topping up.
Use a hydrometer to check density.
Use a thermometer with its rounded end completely
immerged in the liquid to check temperature .
o Correcting the specific gravity readin g compared
to temperature
All readings should be brought down 10 the standard
temperature of 25' C (77 F).
For each la' C (50' F) difference it is necessary to
add or detract 7 gi l in order to bring the reading to
said value of 25' C (77 Fl.
For example : a reading of 15' C (59' Fl. The corre-
sponding gravity at 25'C (77 F) will be 1.290 - 7 =
1,283 g i l. A reading of 3S' C (9S' F): the correspon-
ding gravity brought down to 25' C shall be 1.275
+
+
7
= 1.282 g
/ 1.
This corrective factor should always be within 1.270-
1.280 g/l. When measuring specific gravity. the fol·
lowing precautions should be taken :
• take reading at eye level holding the tube verti-
cally and ensuring the float is free (fig. 179);
• after measurement put back the acid in the cell
from which it was taken ;
• If any drops of acid have dripped , dry them with
a wollen cloth.
The followin g table shows specific ratings in reo
spect to climate :
SPECIFIC GRAVITY
CLIMATE
AT FILLING
Temperale
(normally under
32'
C
18.' F)
1260
Tropics
{normally over 32' C (ag' F)
1230
L-____________________________
--J 17.
SPECIFIC GRAVITY
MAX TEMPERATURE
PERMISSIBLE
AT END OF CHARGE
DURING CHAAGE
1270-1 280
SO' C (122' F)
1220-1230
60"
C 1140' F)
125