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5. Make sure no binding exists in generator or gear box. If
binding is found, locate the cause and correct it before pro-
ceeding.
6. Make sure that the electrical loads to be driven by the gen-
erator will not draw more current than the ratings of the gen-
erator receptacle or cord set which will supply the current.
7. Check all electrical connections in the system to be ener-
gized by the generator. Make sure the connections are correct
and are tight.
8. Make sure all loads are turned off. Do not start the genera-
tor under load.
GENERATOR STARTING
PROCEDURE
1. Set the manual transfer to mid or normal (up)
position.
2. With the power take-off drive disengaged, start the engine
which will drive the generator. Run the engine long enough to
warm it up before proceeding, so that it will run smoothly and
achieve full power under generator load.
3. With engine idling, engage the power take-off drive.
4. Watch the voltmeter on the generator and slowly increase
engine speed until the output reaches approximately 240 to
245 volts (208 to 212 for 208 volt generator), in green portion
of voltmeter scale.
5. Plug load cord set into receptacle. Place transfer switch in
the emergency position.
6. Place the load circuit breaker in the “on” position. If the
breaker trips, move manual transfer switch to “off” or normal
position. Check for short circuit or grounded connection in the
load cable to the double throw switch and repair. A breaker
that trips from overload or short circuit must be reset by
moving to “off” before reclosing.
7. With engine and generator running smoothly, switch on
the electrical load while watching the voltmeter. Readjust en-
gine throttle to keep generator output under load at 240V (208
V if applicable) in green portion of voltmeter scale. If engine is
equipped with speed governor, it may automatically readjust
the throttle as the load changes and keep the generator output
at the proper level. However, some governors are not sensitive
enough to maintain proper output under changing load, and in
such cases the throttle will have to be manually readjusted .
NOTE: Equipment Damage
If the load includes motors turn them on one at a time,
highest starting current motor first, next highest second,
etc.
8. The return of normal power will be indicated by the
2. Check gear case oil level. (See Figure 6.) Case should be
filled with oil to plug marked “OIL LEVEL.” Fill or remove oil as
required.
Figure 6
NOTE: EITHER TOO LITTLE OR TOO MUCH OIL CAN HARM
THE EQUIPMENT.
See “Lubrication” portion of Maintenance for oil specifications.
3. Make sure the drive shaft (tumbling bar) is assembled with
its universal joint knuckles “synchronized,” as illustrated in
Figure 7. If knuckles are not synchronized, the bar will chatter
when rotating, which will cause the generator output voltage to
flicker.
Figure 7
DANGER: Personal Injury
POWER TAKE-OFF MUST BE DISENGAGED AT THIS TIME.
4. Couple the tractor to the generator with the drive shaft
(tumbling bar). Couple the tumbling bar to the generator input
shaft first, then to the power take-off shaft. Check alignment,
tractor, power take-off shaft (tumbling bar), and generator input
shaft should form a straight (or nearly straight) line, with less
than 15° misalignment between the shafts. Misalignment will
cause generator output voltage to flicker.
CAUTION:
Make sure that all tumbling bar lock pins are engaged and
that all safety shields are in place before operating the PTO
generator.
