On this page: generator, setting up. starting and stopping, Monitor Panel, loading, circuit breakers, cold and hot weather, maintenance, articles
? The generator cannot run all the appliances at the same time.MP6
? The gasoline powered generator provides up to 2800 watts of power, enough to run all your appliances.MP62
Generator
• Make: Onan / Model 2.8HGJBB / Serial Number: J14075449
• Roadtrek Manual P62
• Cummings Onan Generator Manual in .pdf
• American RV Company - Cummins Onan 2.8HGJBB-1120A RV QG 2800 Quiet Gasoline 2.8kw Generator Trailer Camper
RV
• The gasoline powered generator provides up to 2800 watts of power, enough to run all your appliances. MP
➜ Please be sure to operate the generator at half load or more (at least 1200 watts, either the heat pump or an electric
heater) for one hour every month. Failure to do this can lead to internal corrosion, gumming up of the float bowl, and
eventual failure. MP62
Fuel
➜ The generator is NOT compatible with E-85 fuel. If the vehicle is equipped with a generator, avoid the use of
E-85 fuel. MP7
• Use clean, fresh unleaded gasoline having a minimum octane rating (Anti-Knock Index) of 87.
• Ethanol Blend - Not more than 10'
• Methanol Blend - Not more than 5' corrosion inhibitors.
CAUTION: Using gasoline or gasoline additives containing more than 5% methanol can be corrosive to
fuel system components.
Remote Control Panel [on Monitor Panel] GenMan11
1 Control Switch - Used to start and stop the generator set, and to prime the engine fuel system.
• Hold the switch in its Start position to crank and start the generator set.
• Press the switch to the Stop position to stop the generator set.
• Hold the switch in its Stop position to prime the fuel system.
2 Status Indicator - LED in the control switch that blinks rapidly during preheat and cranking. Stays on continuously after
generator set is running. If the generator set shuts down abnormally, the indicator flashes a numerical code to indicate the
cause of the shutdown (see Chapter 5 on page 31).
3 Hour Meter - Records the total running time of the generator set. Cannot be reset.
4 DC Voltmeter
Setting up the Generator, GenManual 14
• Park the vehicle so that genset exhaust gases disperse away from the vehicle. Barriers such as walls, snow banks, high
grass, brush and other vehicles can cause exhaust gases to accumulate in and around the vehicle.
• Do not operate power ventilators or exhaust fans while the vehicle is standing with the genset running. The ventilator or fan
can draw exhaust gases into the vehicle.
• Always close the rear windows of the vehicle and turn off the roof ventilation fan to avoid exhaust
entering the vehicle's interior. MP?
• Check all CO monitors to assure proper operation.
• See below Generator Switch on Monitor Panel.
Start and Stop / Generator Switch on Monitor Panel MP93
• To START the generator,
• First push the bottom of the rocker switch for 5 seconds to PRIME, then push the top of the switch to START.
• The status indicator light on the switch flashes while cranking. It will stay on continuously when the
generator set is running. GenMan14
• The generator set can be cranked for about 30 seconds. After this period, Fault Code 4 (over crank)
will occur. GenMan 14
• Wait 5 seconds for the control to reset before trying again. GenMan 14
• After five tries, let the starter motor cool down for 30 seconds before trying again.GenMan 14
• Allow the generator to run for a couple of minutes before turning on heavy loads such as the air
conditioner.
• For top performance and engine life, especially in colder weather, let the engine warm up for two
minutes before connecting appliances. GenMan14
• To STOP the generator, first shut down all heavy loads, let the generator run for a few minutes to cool down, then press the
STOP (bottom) side of the rocker switch. MP93 and GenManual14
• Restarting the Genset, GenManual14 - If the genset shuts down, disconnect or turn off as many appliances as possible
and try restarting the genset. Reconnect only as many appliances as will not overload the genset or cause the circuit breaker
to trip
Loading the Genset, GenManual15
• The genset can power AC motors, air conditioners, AC/DC converters and other appliances. How much appliance load* can
be powered depends upon the genset power rating. The genset will shut down or its circuit breakers will trip if the sum of the
loads exceeds genset power.
• See Load Chart.
Resetting Circuit Breakers, GenManual16
Operating in Cold Weather and in Hot Weather, GenManual17
Maintenance
• Monitor Panel - The hour meter keeps track of how many hours your generator has been running. This is important for
servicing intervals
such as oil changes, etc. See your Cummings/Onan generator service manual for details. There is a break-in oil change after
the first 20 to 50 hours of use. You also need to exercise your generator every month by running it for an hour under
moderate load. MP93
• In order to check the generator oil every 8 hours, you have to crawl under RV to check generator oil every 8 hours of use;
yeah, right [Loe's Jimmy 23Nov15]
• Periodic Maintenance Chart GenManual23
• Cummins Power Generation, Service Locations
• Parker Power
1540 Valwood Pkwy, Carrollton, TX 75006
recommended by NIRVC
(972) 484-9044
under warranty for first 2 years or 2000 hours, if at least one hour a month maintenance run
Articles
• The Roadtrek Generator @ Meryl and Me Hit the Road
The generator must be "exercised" under load for two hours* every month. What this means is that you need to go out to your
Roadtrek and start your generator and then put a load on it - half load is recommended which is either the air conditioner or
the heat pump or a plug in electric heater - and leave it running for two hours. And you must do this every month. If you look in
the Roadtrek manual it will talk about doing this for a half hour every month - BUT - the Onan manual says two hours and my
dealer service told me that if there is a problem that requires warranty repair they have to tell Onan how many hours are on
the meter - and if those hours don't at least show the exercise time for the age of the generator, they do not have to cover
repairs under the warranty. But there is good reason to do this other than to make Onan happy. The generator really does
need to be run this way. Some owners use the generator more exercising it this way than they do actually using it- me
included.
• Pick your next generator carefully, Inverter Generators
• PLEASE DON’T WATER YOUR AGM BATTERIES