Maintenance, Removing The Flail Screen

Maintenance

Engine

Refer to the separate engine manual for all engine maintenance instructions.

•Check engine oil level before each use as instructed in the separate engine manual packed with your unit. Read and follow instructions carefully.

•Clean air cleaner every 25 hours under normal conditions or once a season. Clean every few hours under extremely dusty conditions. To service the air cleaner, refer to the separate engine manual packed with your unit.

•The spark plug should be cleaned and the gap reset once a season. Check engine manual for correct plug type and gap specifications.

Remove

Self-Tapping

Screw

Figure 12

Removing The Flail Screen

If the discharge area becomes clogged, remove the flail screen and clean area as follows:

•Stop the engine and make certain the Yard Vacuum has come to a complete stop.

•Disconnect spark plug wire from spark plug and ground against the engine.

•Remove the bag or blower chute (if equipped) from the unit as instructed in the OPERATION section to obtain access to flail screen. See Figure 11.

Hex Screw &
Flat Washer
Lock Nut	Flail Screen

Figure 11

•Remove self-tapping screw on right side of unit that attaches to the fail screen. It may be necessary to remove the hose bracket hanger to get access to the hex screw. See Figure 12.

•Remove hex screw on top of rear housing mounting bracket and the flange lock nut that secures flail screen. See Figure 11.

•Remove and clean the screen by scraping or washing with water. Reinstall the flail screen.

Sharpening Or Replacing Chipper Blade

Because the engine on this unit has a tapered crankshaft, a special impeller tool (part number 753- 0900) is required to remove the impeller assembly. For further assistance, contact your local service dealer.

NOTE: When tipping the unit, empty the fuel tank and keep spark plug side up.

•Disconnect the spark plug wire and ground it away from the spark plug.

•Remove the front hubcaps, flange lock nuts, front wheels, and wave washers that attach to the pivot arm assemblies. See Figure 13.

Front Support
Brace & Lock Nut
	Bell Washer
	Wave Washer
	Hubcap
Pivot Arm Assembly
Thrust Washer
Shoulder
Screw	Flange Lock Nut

Figure 13

•Remove the shoulder screws, thrust and bell washers that go through the pivot arms to the front support brace. The front support brace and lock nut can be removed at this time as well.

•Remove the three screws on the upper housing that secure the nozzle cover and the nine screws that secure the lower housing to the upper housing. See Figure 14.