GMC 1976 ZEO 6083 Maintenance Manual page 382

6Y- 2 ENGINE ELECTRICAL
Figure 1-MotorHome Automotive Battery
(automotive) battery and a flame arrestor type fil-
ler/vent cap auxiliary (living area) battery. Later
model TransModes have maintenance-free main and
auxiliary batteries . TransModes equipped with the
motor generator option include a maintenance-free
cranking battery located in the motor generator com-
partment along with the motor generator hour me-
ter .
Follow maintenance and testing procedures ap-
plicable to the particular type battery being serviced .
Figure 2-TransMode Main and Auxiliary Batteries
Figure 3-TransMode Motor Generator Cranking
Battery (Optional)
BATTERY DESCRIPTION
BATTERIES WITH FLAME ARRESTOR
VENT CAPS
Batteries with flame arrestor type filler/vent caps
are identified by the small grey disc in the cap, as
shown in Figure 4. This centered carbide section
disperses battery fumes and acts as a screen to pro-
tect the battery from flame entry. These batteries
require regular checking electrolyte level discussed
later in this section under "Charging Guide" .
Figure 4-Flame Arrestor Cap