Section II. DESTRUCTION OF MATERIEL TO PREVENT ENEMY USE

The battery is fully charged when the specific gravity

(1) Remove the caps and remove and

remains constant for three 30-minute intervals.

destroy plastic film used to seal the battery caps.

Caution

(2) Fill the batteries to the level indicated with

Constant current battery charging is

the separately packed electrolyte. If possible, the

always preferred.

If a constant

battery and electrolyte should be at 77 F during filling.

potential charger must be used,

The battery must be at more than 60 F but not more

than 100F at filling. Allow the filled batteries to stand

battery

temperature

must

for 30 minutes, then check the specific gravity of the

maintained at less than 130 F by

electrolyte. The specific gravity, when temperature

interrupting the charging procedure

corrected to 77F, must be above 1.250.

as this temperature is approached.

(3) If the specific gravity of the electrolyte is

(5) During charging, check the electrolyte

less than 1.250, or if the battery is not going to be used

level frequently. Add distilled water when necessary to

within 12 hours, or if the battery is going into service at a

maintain the battery electrolyte level. Continue charging

temperature of less than 0 F, the battery must be

after adding water to assure proper mixing of the

charged before use.

solution.

Warning

(6) After charging, the specific gravity of the

Do not smoke or use an open flame

electrolyte must be adjusted to 1.280 +0.010. The

in the vicinity when servicing the

specific gravity can be lowered, if necessary, by

batteries.

Batteries

generate

removing electrolyte and replacing it with distilled water.

hydrogen gas, a highly explosive

(7) After adding electrolyte, charge the

gas.

batteries a minimum of once each month when the

batteries are not in service.

(4) If battery charging is necessary, use a

constant current charger and charge the battery. Check

(8) Batteries can be charged without

the specific gravity of the electrolyte every 30 minutes.

removing the batteries from the equipment. Use the

battery charging receptacle (5, fig. 2-1).

Section II. DESTRUCTION OF MATERIEL TO PREVENT ENEMY USE

4-4. Destruction of Materiel to Prevent Enemy Use

4-3. General

For instructions regarding destruction of

Organizational

maintenance

personnel

equipment to prevent enemy use, refer to TM 750-244-3

responsible for the maintenance of the centrifugal pump

(Procedures for Destruction of Equipment to Prevent

must have a thorough knowledge of the procedures

Enemy Use) (Mobility Equipment Command).

necessary to destroy this equipment in the event of

abandonment or imminent capture by the enemy.

Destruction procedures shall be carried out only on the

expressed orders of the responsible unit commander.

Section III. REPAIR PARTS, SPECIAL TOOLS, AND EQUIPMENT

No special tools or equipment is required for

4-5. Tools and Equipment

organizational maintenance of the centrifugal pump.

Tools, equipment, and repair parts issued with or

4-7. Maintenance Repair Parts

authorized for the centrifugal pump are listed in the

Basic Issue Items List, Appendix C.

Repair parts and equipment are listed in the repair

parts and special tools list covering organizational

4-6. Special Tools and Equipment

maintenance for this equipment. Refer to TM 5-4320-

258-20P.

Section IV. LUBRICATION INSTRUCTIONS

external heat. Allow no dust, dirt, or other foreign

4-8. Detailed Lubrication Information

material to mix with the lubricants. Keep all lubrication

a. General.

Keep all lubricants in closed

equipment clean and ready to use.

containers and store in a clean, dry place away from

4-2