Section 3 • Scheduled Maintenance Procedures January 2012
3 - 10 GS-30 • GS-32 • GS-46 • GS-47 Part No. 228901
CHECKLIST B PROCEDURES
10 Check the ambient air temperature and adjust
the specific gravity reading for each cell as
follows:
• Add 0.004 to the reading of each cell for
every 10° / 5.5° C above 80° F / 26.7° C.
• Subtract 0.004 from the reading of each cell for
every 10° / 5.5° C below 80° F / 26.7° C.
Result: All battery cells display a specific gravity
of 1.277 +/- 0.007. The battery is fully charged.
Proceed to step 11.
Result: One or more battery cells display a
specific gravity from 1.269 to 1.218. The battery
is still usable, but at a lower performance so will
need to be recharged more often. Proceed to
step 11.
Result: One or more battery cells display a
specific gravity from 1.217 to 1.173. The battery
is approaching the end of its life. Proceed to
step 11.
Result: The difference in specific gravity
readings between cells is greater than 0.1 OR
the specific gravity of one or more cells is 1.172
or less. Replace the battery.
11 Check the battery acid level. If needed,
replenish with distilled water to
1
/8 inch / 3 mm
below the bottom of the battery fill tube. Do not
overfill.
12 Install the vent caps and neutralize any
electrolyte that may have spilled.
All models except GS-4047
a batteries B5
b 275A fuse F6
c quick disconnect QD1
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