Use And Care Manual

ManualsBrandsGenerac PRO ManualsLog Splitters & ChippersGenerac® PRO 5" 420cc Gas Chipper/Shredder

24 Owner’s Manual for Chipper/Shredder

Maintenance and Troubleshooting

the inside. Never attempt to brush off dirt;

brushing will force dirt into fibers.

b. Foam air filter element: Clean in warm soapy

water, rinse, and air dry thoroughly. Or, clean in

nonflammable solvent and air dry thoroughly.

Dip filter element in clean engine oil, and

remove excess oil. Engine will smoke when

started if too much oil remains in the foam air

filter element.

6. Use a moist rag to wipe dirt from inside the air

cleaner base and cover. Verify dirt does not enter

the enter the air duct leading to the carburetor.

7. Place foam air filter over paper air filter element,

and install the assembled air filter. Verify gasket is

in place beneath air filter. Tighten air filter wing nut

securely.

8. Install air cleaner cover, and tighten cover wing nut

securely.

Changing Spark Plug

Recommended spark plugs: F7RTC or other equivalents.

1. Disconnect spark plug cap and remove any dirt

from around the spark plug area.

2. See Figure 4-3. Remove spark plug (A) with a

spark plug wrench (B).

Figure 4-3. Remove Spark Plug

3. Inspect spark plug. Replace spark plug if elec-

trodes are worn, or if the insulator is cracked or

chipped.

4. See Figure 4-4. Measure spark plug electrode gap

0.028–0.031 in (0.70–0.80 mm). Correct the gap, if

necessary, by carefully bending the side electrode.

Figure 4-4. Spark Plug Electrode Gap

5. Install spark plug carefully by hand, to avoid cross-

threading.

6. Tighten spark plug to compress the washer after

the spark plug seats.

• If installing a used spark plug, tighten 1/8–1/4 turn

after spark plug seats.

• If installing a new spark plug, tighten one half turn

after spark plug seats.

NOTE: Overtightening the spark plug can damage

threads in the cylinder head. Undertightening the spark

plug can overheat and damage the engine.

7. Install the spark plug cap.

8. Connect spark plug wire.

Grease Fittings

The chipper/shredder was greased in factory. Chipper

side and drive side bearings must be lubricated periodi-

cally. See Maintenance Schedule.

NOTE: Over lubrication can damage bearings.

1. See Figure 4-5. Wipe all dirt and debris from

grease fitting(s) (A) with a clean, lint free cloth.

WARNING

(000415)

Accidental start-up. Before servicing or detangling, shut

down unit, allow to cool, remove keys, and disconnect spark

plug wire(s). Failure to do so could result in death, serious

injury, or equipment damage.

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