STARTING ENGINE.

TM 55-4920-335-14

Figure 3-1. Control Panel

3-3. STARTING ENGINE.

Start the Test Stand gasoline

depressed rather, release and again depress switch in short

engine as follows:

intermittent starting cycles. If flooding of engine should occur,

push choke control (26) in and continue cranking cycles. More

Open bypass valve (19, figure 3-1).

cranking is necessary when starting in cold temperatures.

Pull choke control (26) out.

Pull throttle control (24) to one-quarter open position.

d. When starting a new engine for the first time or an

engine that has been out of operation for a period of time, the

hand primer lever on the fuel pump adapter (figure 3-2) should

be used to pump gasoline into the dry carburetor. A distinct

resistance of the fuel pump diaphragm should be felt when

moving the hand lever back and forth. If this is not the case,

turn the engine over a revolution so that fuel pump cam will be

rotated from its upper position. Apply 20 to 30 strokes to the

hand lever. When carburetor is full, hand lever primer will

move more easily.

Place ignition switch (25, figure 3-1) in ON position.

f. Press starter switch (27) to crank engine. The engine

should start within 2 or 3 crankshaft revolutions. If starting

difficulty is encountered, do not continuously hold starter switch

Figure 3-2. Priming Fuel Pump

3-3