Generac 00941-4 owner manual Post Installation Tests, Before Initial Start UP, Testing Under Load

Section 3 – Post-installation Start-up Checks

IMPACT-36 plus II Recreational Vehicle Generator

CHECKS

3.1POST INSTALLATION TESTS

The air cooled Impact-36 plus II generator set was factory tested and adjusted using gasoline as fuel.The air cooled Impact-34 plus II generator set was factory tested and adjusted using LP gas as fuel. It is not required to adjust the unit any further except under special circumstances.

Do not make any unnecessary adjustments.

!Factory settings are correct for most applica- tions. When making adjustments, however, be careful to avoid overspeeding the engine.

3.2BEFORE INITIAL START UP

Before starting, complete the following:

1.Check engine crankcase oil level and, if neces- sary, fill to dipstick FULL mark with the recom- mended oil. Do not fill above FULL mark.

2.Check the fuel supply. Gas fuel lines must have been properly purged and leak tested in accor- dance with applicable fuel codes. All fuel shutoff valves in the fuel supply lines must be open.

DANGER

If an LP (propane) gas fuel system has been installed, it must have been properly tested for leaks before operating the system in com- pliance with ANSI A119.2/NFPA 501C. No leak- age is permitted. Be sure no gaseous fuel vapors enter the vehicle interior.

3.3INITIAL START

When absolutely certain that the unit has been prop- erly installed and prepared for use, start the engine as follows:

1.Turn off all electrical loads. Do this by setting the generator main circuit breaker to its “OFF” or “OPEN” position.

2.Refer to the Owner's Manual shipped with unit for cranking and starting instructions. The engine may require more cranking for initial starting since the fuel lines have to be primed (Use of the Primer Switch on gasoline units will shorten this time).

3.Let the engine warm up for about five minutes to allow internal temperatures to stabilize.

4.Carefully inspect the engine-generator for fuel, oil and exhaust system leaks. Before proceeding to the next step, correct any leakage immediately.

5.When all tests and adjustments at no-load are completed, apply electrical loads and check for proper operation under load. See “Testing Under Load”, Section 3.4. Run the unit at least 30 min- utes with loads applied.

6.Turn off all electrical loads by setting the genera- tor main circuit breaker to “OFF” or “OPEN.”

7.Let the unit run at no-load for a few minutes to stabilize internal engine-generator temperatures. Then, shut down the engine.

IMPORTANT: THE GENERATOR SET WAS THOR- OUGHLY TESTED AND ADJUSTED AT THE FAC- TORY BEFORE SHIPPING. NO ADDITIONAL ADJUSTMENT SHOULD BE NECESSARY. ONLY QUALIFIED SERVICE TECHNICIANS WHO HAVE BEEN TRAINED SHOULD PERFORM ADJUST- MENTS OUTLINED IN THIS MANUAL.

3.4TESTING UNDER LOAD

Apply electrical loads equal to about 75-100% of the unit's rated wattage/amperage capacity.

Let the unit run at least 30 minutes with load applied. During this part of the test, check that the unit is not running excessively hot and that adequate cooling air flow is available. Do not allow the unit to overheat during prolonged operation.

NOTE:

The generator engine is equipped with a high tem- perature switch. The switch has normally-open (N.O.) contacts. When the temperature is too high, switch contacts close, and engine shuts down automatically.

IMPORTANT: GENERAC RECOMMENDS THAT THE GENERATOR IS TESTED FOR ADEQUATE COOLING.

Generac® Power Systems, Inc. 33