TM 9-6140-200-14
b. Battery Post Repair (2HN, 4HN and 6TN Only).
WARNING
The melting, sawing and use of pig lead must be performed
in accordance with local SOP complying with OSHA
requirements.
Fumes from molten lead and dust size lead particles can be
injurious to health if ingested (taken into the body by month or
through breathing). Use protective clothing and equipment to
prevent injury to personnel.
To protect personnel from lead and acid fumes, batteries must
be placed on work bench having an overhead exhaust in
operation before repairing battery posts.
To avoid danger of explosion, steps (1) through (4) below
must be followed carefully. Pay special attention to step (2)
below. A low battery electrolyte level creates a potential
for hydrogen gas to be trapped in the battery and when
subjected to open flumes, sparks or other ignition sources
can explode and cause injury to personnel and cause
equipment damage.
(1) Remove all filler caps from battery.
(2) Make sure electrolyte level is up to ledge in filler opening. Add distilled
water as necessary.
NOTE
Do not add electrolyte at this time.
(3) Let battery stand for 5 minutes to permit explosive hydrogen gas to escape
and dissipate.
4-3
