Battery Service
can be prevented.
CAUTION
When working with batteries, use extreme cau-
eyes. Always wear safety goggles and a face
shield when working with batteries.
Figure 25
1
1
2
The battery is the heart of the electrical system. With
regular and proper service, battery life can be extended.
Additionally, battery and electrical component failure
tion to avoid splashing or spilling electrolyte.
Electrolyte can destroy clothing and burn skin or
1. Wing
nut
2. Battery
retainer
Electrolyte Specific Gravity
Fully charged: 1.265 corrected to 80
o
F (26.7
o
C)
Discharged: less than 1.240
Battery Specifications
BCI Group Size U1
300 Amp Cranking Performance at 0
o
F (–17.8
o
C)
28 Minute Reserve Capacity at 80
o
F (26.7
o
C)
Removal (Fig. 25 and 26)
IMPORTANT: Be careful not to damage terminal
posts or cable connectors when removing the bat-
tery cables.
1. Remove wing nuts, and battery retainer.
Figure 26
COVER SEAL
FILLER CAPS
CORRECT
LEVEL
WATER
CAP TUBES
2. Disconnect the ground cable (–) first to prevent
short circuiting the battery, other components, or the op-
erators hands. Disconnect the positive (+) cable.
C. Check for signs of wetness or leakage on the top
of the battery which might indicate a loose or mis-
sing filler cap, overcharging, loose terminal post, or
overfilling. Also, check the battery case for dirt and
3. Make sure that the filler caps are on tightly.
oil. Clean the battery with a solution of baking soda
4. Remove battery from the battery compartment to a
and water, then rinse it with clean water.
service area. This will minimize possible battery dam-
D. Check that the cover seal is not broken away.
age and allow better access for inspection and service.
Replace the battery if the seal is broken or leaking.
Inspection, Maintenance, and Testing
E. Check the electrolyte level in each cell. If the lev-
1.
Perform following inspections and maintenance:
el is below the tops of the plates in any cell, fill all
cells with
distilled
water to the bottom of the cap
A. Check for cracks caused by overly tight or loose
tubes. Charge at 15 to 25 amps for 15 minutes to al-
hold–down clamp. Replace battery if cracked and
low sufficient mixing of the electrolyte.
leaking.
2. Conduct a hydrometer test of the battery electrolyte.
B. Check battery terminal posts for corrosion. Use
IMPORTANT: Make sure the area around the cells is
a terminal brush or steel wool to clean corrosion
from the battery terminal posts.
clean before opening the battery caps.
IMPORTANT: Before cleaning the battery, tape or
A. Measure the specific gravity of each cell with a
block the vent holes to the filler caps and make sure
hydrometer. Draw electrolyte in and out of the
the caps are on tightly.
hydrometer barrel prior to taking a reading to warm–
up the hydrometer. At the same time take the tem-
perature of the cell.
Greensmaster 3150
Page 5 – 19
Rev. A
Electrical System
Electrical
System
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