Table 1. Unit Maintenance Preventive Maintenance Checks and Services (PMCS) for the D7G Tractor. - Continued

TM 5-2410-237-23

UNIT MAINTENANCE PREVENTIVE MAINTENANCE CHECKS AND

SERVICES (PMCS) - CONTINUED

0010 00

Table 1. Unit Maintenance Preventive Maintenance Checks and

Services (PMCS) for the D7G Tractor - Continued.

LOCATION

ITEM TO

ITEM

MAN-

CHECK/

NO.

INTERVAL

HOURS

SERVICE

PROCEDURE

CAUTION

(Con't)

If battery compartment is corroded, it will be necessary to

remove batteries and clean compartment to remove acid resi-

dues and corrosion.

Buildup of dirt or corrosion on batteries can lead to electrical

malfunctions.

Service batteries as follows:

a. Access batteries inside battery box on left side of machine.

b. Check battery hold-down for looseness, corrosion or damage.

Tighten if loose.

c. Clean top of batteries with a rag (Item 29, WP 0249 00).

d. Inspect batteries for evidence of a cracked case and electrolyte

leakage.

e. Disconnect battery cables (WP 0101 00).

f. As required, use a solution of 1-1/2 cups (340 grams) of baking

soda (Item 34, WP 0249 00) with 1 gallon (3.8 l) of clean water to

remove any acid film from batteries. Rinse with clean water.

g. Clean battery terminals with a fine grade of sandpaper or emery

cloth (Item 5, WP 0249 00).

h. Ensure all battery filler caps are present.

i. Remove filler caps and check electrolyte level in each battery

cell. Electrolyte level should be up to triangle in filler openings.

Add distilled water as required and reinstall filler caps snugly.

CAUTION

If battery requires charging, never exceed a charging volt-

age of 16 volts. Too much voltage will cause serious damage

to battery.

j. Check state of charge of battery, using a digital voltmeter (TM 9-

6140-200-14). A reading of 12.4 volts or more indicates battery is

sufficiently charged. If reading is below 12.4 volts, recharge bat-

tery.

k. Check specific gravity of electrolyte IAW TM 9-6140-200-14.

l. Connect battery cables (WP 0100 00).

0010 00-7

Change 1