Guardian Technologies 004708-0 - Manual (Page 11)

9
Section 2 – Operation
Recreational Vehicle Generator
2.6 STOPPING THE GENERATOR
1. Turn OFF all electrical loads using the means
provided (such as a main circuit breaker or
transfer switch).
2. Let generator run at no-load for a few minutes, to
stabilize internal engine generator temperatures.
3. Place the Start/Stop switch in its STOP position.
2.7 APPLYING LOADS TO GENERATOR
When applying electrical loads to the generator,
observe these guidelines:
Before applying electrical loads, let the generator •
stabilize and warm up for a minute or two.
DO NOT overload the generator. •
2.7.1 LETTING THE ENGINE STABILIZE ‹
The generator supplies correct rated voltage only at
the proper governed speed. Some electrical appli-
ances may be extremely sensitive to voltage. Incorrect
voltages can damage such appliances.
If electrical loads are applied at reduced operating
speeds, such loads imposed on the engine when suf-
ficient power is not available may shorten engine life.
Never turn ON electrical loads until after the generator
engine has started and stabilized at no-load.
2.8 DO NOT OVERLOAD THE
GENERATOR
Read the rated wattage/amperage capacity of the
generator on the generator data label (see "Generator
Identification").
Applying electrical loads in excess of the unit’s rated
capacity will cause the engine/generator to automati-
cally shut down.
To avoid overloading, add up the wattage of all con-
nected electrical lighting, appliance, tool and motor
loads. This total should not be greater than the
generator’s rated wattage capacity.
Most lighting, appliance, tool and motor loads •
indicate their required watts on their nameplate or
data plate. For light bulbs, simply note the wattage
rating of the bulb.
If a load does not show its rated wattage, multiply •
that load’s rated VOLTS times AMPS to obtain
WATTS.
Induction type motors (such as those that run the •
vehicle’s furnace fan, refrigerator, air conditioner,
etc.) need about 2-1/2 time more watts of power for
starting than for running (for a few seconds dur-
ing motor starting). Be sure to allow for this when
connecting electrical loads to the generator. First,
figure the watts needed to start electric motors in
the system. To that figure, add the running watt-
ages of other items that will be operated by the
generator.
Do not apply heavy electrical loads for the first two •
or three hours of operation.
2.9 PROTECTION SYSTEMS
2.9.1 LOW OIL PRESSURE SWITCH ‹
This switch (Figure 2.2) has normally closed (N.C.)
contacts that are held open by engine oil pressure dur-
ing cranking and operating. Should oil pressure drop
below a preset level, switch contacts close, and the
engine automatically shuts down. The unit should not
be restarted until oil is added.
2.9.2 HIGH TEMPERATURE SWITCH ‹
This switch (Figure 2.2), which has normally open
(N.O.) contacts, is mounted near the oil filter. The
contacts close if the temperature should exceed
approximately 284º F (140º C), initiating an engine
shutdown.
Figure 2.2 – Low Oil Pressure and
High Temperature Switches
High Temperature Switch
Low Oil Pressure
Switch