MQ Power DCA300SSJU4F3 Operation Manual page 43

The fan belt tension is proper if the fan belt bends 10 to
15 mm (Figure 47) when depressed with the thumb as
shown below.
Figure 47. Fan Belt Tension
CAUTION
NEVER place hands near the belts or fan
while the generator set is running.
BATTERY
This unit is of negative ground DO NOT connect in reverse.
Always maintain battery fluid level between the specified
marks. Battery life will be shortened, if the fluid level are
not properly maintained. Add only distilled water when
replenishment is necessary.
DO NOT over fill. Check to see whether the battery
cables are loose. Poor contact may result in poor starting
or malfunctions. Always keep the terminals firmly
tightened. Coating the terminals with an approved battery
terminal treatment compound. Replace battery with only
recommended type battery. The battery type used in this
generator is BCI Group 27.
The battery is sufficiently charged if the specific gravity
of the battery fluid is 1.28 (at 68° F). If the specific gravity
should fall to 1.245 or lower, it indicates that the battery is
dead and needs to be recharged or replaced.
Before charging the battery with an external electric source,
be sure to disconnect the battery cables.
DCA300SSJU4F2/F3 60 HZ GENERATOR• OPERATION MANUAL — REV. #2 (04/18/22) — PAGE 43
0.17 ~ 0.20 IN.
(4.2 ~ 5.0 MM)
DEFLECTION
INSPECTION/SETUP
Battery Cable Installation
ALWAYS be sure the battery cables (Figure 48) are
properly connected to the battery terminals as shown below.
The red cable is connected to the positive terminal of the
battery, and the black cable is connected to the negative
terminal of the battery.
CAUTION
ALWAYS disconnect the negative terminal FIRST and
reconnect negative terminal LAST.
POSITIVE
Figure 48. Battery Connections
When connecting battery do the following:
1. NEVER connect the battery cables to the battery
terminals when the Auto-Off/Reset-Manual Switch
is in either the AUTO or MANUAL position. ALWAYS
make sure that this itch is in the OFF/RESET position
when connecting the battery.
2. Place a small amount of battery terminal treatment
compound around both battery terminals. This will
ensure a good connection and will help prevent
corrosion around the battery terminals.
NOTICE
If the battery cable is connected incorrectly, electrical
damage to the generator will occur. Pay close attention
to the polarity of the battery when connecting the battery.
CAUTION
Inadequate battery connections may cause poor
starting of the generator, and create other malfunctions.
NEGATIVE