onnection. Note how much current is indicated on the ammeter mounted
on the instrument panel of the car as the different lamps are turned
on. In each case the ammeter should indicate "discharge." Should the
ammeter indicate "charge" the battery connections have been reversed,
or the ammeter connections are reversed. The driver will tell you
whether the ammeter has been reading "charge" or "discharge" when the
lamps were turned on. This is a good way to check your battery
connections.

If the car has no ammeter, or has an indicator which is marked "ON" or
"OFF," or "Charge" or "Discharge," an ammeter may be connected in
series with the battery by disconnecting the cable from the positive
battery terminal and connecting the ammeter to the cable and to the
terminal, and the readings obtained from this meter.

The amperes indicated on the ammeter should be the greatest when the
main headlamps are burning bright. By comparing the readings obtained
when the different lighting combinations are turned on, it is
sometimes possible to detect trouble in some of the lighting lines.

3. Start the Engine. Before you do this, be sure that the cables are
connected directly to the battery terminals, and that no ammeter or
voltmeter is connected in series with the battery, as the heavy
current drawn by the starting motor would ruin the instruments very
quickly. An ammeter may be left connected in series with the battery,
providing that a switch is used to short-circuit the meter while
starting the engine. A meter having a 500 ampere scale may be left
connected in series with the battery while the engine is being
started, but for the tests which are to be made a 25 ampere scale
should be used.

The engine should start within ten seconds after the starting switch
is closed. If more time than this is required, carburetor adjustments,
position of the choke lever, etc., should be looked after. Continued
cranking of the engine will run the battery down very quickly, and the
chances are that the car will not be run long enough to allow the
generator to recharge the battery. Make whatever adjustments are
necessary to reduce the cranking time to ten seconds, or advise the
owner to have them made, warning him that otherwise you will not be
responsible if the battery runs down very quickly.

4. When the engine has started, set the throttle lever so that the
engine runs As slowly as possible. The ammeter (either that on the
instrument panel, o