Generac 5798R 3.3.2 TO CLEAN THE GENERATOR, 3.3.3 ENGINE MAINTENANCE, 3.3.4 CHECKING OIL LEVEL, 3.3.5 CHANGING THE OIL AND OIL FILTER, 3.3.6 REPLACING THE SPARK PLUG

NOTE:

DO NOT use a garden hose to clean generator. Water can enter the engine fuel system and cause problems. In addition, if water enters the generator through cooling air slots, some water will be retained in voids and crevices of the rotor

and stator winding insulation. Water and dirt buildup on the generator internal windings will eventually decrease the insulation resistance of these windings.

3.3.2 TO CLEAN THE GENERATOR

•Use a damp cloth to wipe exterior surfaces clean.

•A soft, bristle brush may be used to loosen caked on dirt, oil, etc.

•A vacuum cleaner may be used to pick up loose dirt and debris.

•Low pressure air (not to exceed 25 psi) may be used to blow away dirt. Inspect cooling air slots and openings on the generator. These openings must be kept clean and unobstructed.

3.3.3 ENGINE MAINTENANCE

nWhen working on the generator, always disconnect negative cable from battery. Also disconnect spark plug wire from spark plug and keep wire away from spark plug.

3.3.4 CHECKING OIL LEVEL

See the “BEFORE STARTING THE GENERATOR” section for information on checking the oil level. The oil level should be checked before each use, or at least every eight hours of operation. Keep the oil level maintained.

3.3.5 CHANGING THE OIL AND OIL FILTER

Change the oil and filter after the first 30 hours of operation. Change the oil every 100 hours or every season thereafter. If running this unit under dirty or dusty conditions, or in extremely hot weather, change the oil more often.

nHot oil may cause burns. Allow engine to cool before draining oil. Avoid prolonged or repeated skin exposure with used oil. Thoroughly wash exposed areas with soap.

Use the following instructions to change the oil:

•Clean area around oil drain cap.

•Remove oil drain cap from the drain hose and oil fill plug to drain oil completely into a suitable container.

•When oil has completely drained, install oil drain cap and tighten securely.

•Place a suitable container beneath the oil filter and turn filter counterclockwise to remove. Discard according to local regulations.

Maintenance

•Coat gasket of new filter with clean engine oil. Turn filter clockwise until gasket contacts lightly with filter adapter. Then tighten an additional 3/4 turn.

•Fill oil sump with recommended oil and replace the oil fill plug. (See “Before Starting the Generator” for oil recommendations).

•Wipe up any spilled oil.

•Dispose of used oil at a proper collection center.

3.3.6 REPLACING THE SPARK PLUG

Use Champion RC14YC spark plug or equivalent. Replace the plug once each year. This will help the engine start easier and run better.

1.Stop the engine and pull the spark plug wire off of the spark plug.

2.To gain access, remove the four (4) socket head screws and take off the side panel.

3.Clean the area around the spark plug and remove it from the cylinder head.

4.Set the spark plug's gap to .76 mm (0.030 in.). Install the correctly gapped spark plug into the cylinder head (Figure 12).

5.Push the boot firmly on the spark plug and install side panel.

Figure 12 – Spark Plug Gap

3.4 SERVICE AIR CLEANER

The engine will not run properly and may be damaged if using a dirty air cleaner. Clean or replace the air cleaner paper filter every 200 hours or once a year (Figure 15). Clean or replace more often if operating under dusty conditions. To clean or replace paper air filter:

•Remove air cleaner cover and remove paper filter (Figure 13).

•Clean paper filter by tapping it gently on a solid surface. If the filter is too dirty, replace it with a new one. Dispose of the old filter properly.

•Clean air cleaner cover. Next insert new paper filter into the base of the air cleaner. Re-install air cleaner cover.