Table 2-2. PREVENTIVE MAINTENANCE CHECKS AND SERVICES WITH LUBRICATION INSTRUCTIONS FOR M578 RECOVERY VEHICLE (Cont)

TM 9-2350-238-20-1

Table 2-2. PREVENTIVE MAINTENANCE CHECKS AND SERVICES WITH LUBRICATION

INSTRUCTIONS FOR M578 RECOVERY VEHICLE (CONT)

Not Fully Mission

Procedure

Item To Check/

Item

Interval

Capable If:

Service

No.

Battery Elec-

trical System

(cont)

(5) Point the instrument toward any light

source (headlight) and look into eyepiece

(6). The battery charge is at a point on the

left part of the scale where the dividing line

between light and dark (shadow) crosses

the scale.

The illustration shows a reading of 1.120

specific gravity points, which indicates that

the battery requires recharging.

NOTE

A little experience will enable you

to quickly obtain the best con-

trast between light and dark por-

tions of the field of view. Tilt the

instrument toward the light

source until the best results are

obtained. If the edge of the

shadow is not sharp, the measur-

ing surface was not sufficiently

cleaned or dried.

Cables frayed,

d. Inspect battery cables for frays, splits, and

split, or loose.

looseness.

2-39