TM 9-4910-663-12
CHAPTER 2
NOTE
If equipment fails to operate, refer to trouble-
OPERATING PROCEDURES
Section I.
2-1. GENERAL. This section provides information pertaining to in-
struments provided for operation of the test stand, together with
2-2. INSTRUMENTS AND CONTROLS. The following paragraphs contain the
information pertaining to the instruments and controls (controls and
indicators) of the test stand.
Instrument Panel.
a.
(1) DC AMMETER LOAD & STARTER OUTPUT CURRENT BATTERY CHARGE
CURRENT Binding Posts (fig 2-1). These binding posts, which are
connected directly to the meter terminals, are for test and calibra-
tion only.
(2) DC AMMETER LOAD & STARTER OUTPUT CURRENT BATTERY CHARGE
CURRENT Meter (M3, fig 2-1). This meter has a scale of 15-0-50 am-
is used with five external 50 millivolt dc shunts to measure dc cur-
rents in ranges of XI (50 amperes), X3 (150 amperes), X10 (500 am-
peres), and X4 (200 amperes).
(3) DC AMMETER FIELD CURRENT Binding Posts (fig 2-1). These
binding posts, which are connected directly to the terminals of the
(4) DC AMMETER FIELD CURRENT Meter (M7, fig 2-1). This meter
has a scale of 5-0-5 dc amperes, and a movement of 50-0-50 millivolts
dc. It is used with three external 50 millivolt shunts to measure dc
currents in ranges of XI (5 amperes), X3 (15 amperes), and X6 (30
amperes). The currents that are measured are developed in the field
(5) MILLIVOLT METER MILLIVOLT DROP Binding Posts (fig 2-1).
These binding posts, which are connected directly to the terminals of
the associated meter, are for test and calibration only.
2-1