Generac Power Systems GTV99O Service Manual page 37

SECTION 6: ELECTRIC STARTER
Figurc 6-4 Typical BatEry
C NECK NG BATTERY:
1. Physicalcheck
-clean if necessary.
a. Cofiosion
b. Din
c. Te minalard (lamp1(\p.urc
- good (orditior'
2. gring battery to full charge.
WARNING: DO NOT exce€d rharge rate of 1/10
ampere {or every ampere ot batt€ry .ating. Consult
battery manu{acturer for maximum charqe recom-
INSTALL"ATON:
l. Before installing battery connect all equipment to be
operated.
2. Place battery in holderwith flat base. Tighten ho der down
evenly untilsnug. DO NOT overughten.
3. Connect posiUve ierminalto politive post FlRSTto prevent
sparks caused by accd€nta gfounding. Tlghten conne.-
tors securely.
4. Connect negative termlnal to negative battery teminal.
Tighten connectors 5ecurcly.
a. Use a taper charge (automatically reduces charge rate).
b. Fillnon-sealed
batterycelk with distilled watefafter charg-
ing (for batteries that have been in seNice).
Note: ll battery get5 "Hot" to the touch or is spifting acid
(gassing) ex.essively, unplug charyer peiodi.ally.
3. With batieryfullycharged,
check specific gravity rcadings
of each cell with a Battery Hydrometer and record read-
ings (Figure 6-6). All rcadings should be above ] 250
(compensating for temperature). lf specfic aravity read-
inqs varied 0.50 or if allcells read less than 1.225, replace
battery
OPTIONAL CNAFG]NG SYSTEM
Figurc 6-5. rypical 12 Volt Wiring Diagran
6 3