Craftsman 247.77003 Operator's Manual page 17

Clean Engine
• Daily or before every use, clean grass, chaff or accumulated debris from
engine. Keep linkage, spring, and controls clean. Keep area around and
behind muffler free of any combustible debris.
• Keeping engine clean allows air movement around engine.
• Engine parts should be kept clean to reduce the risk of overheating and
ignition of accumulated debris.
Do not use water to clean engine parts. Water could contaminate fuel
system. Use a brush or dry cloth.
Lubrication
Wheels
Place a few drops of SAE 30 oil on each shoulder screw once a season.
Nozzle Height Adjustment Levers
Lubricate nozzle height adjustment levers with light oil.
Locking Rod
Lubricate the lock rod and compression springs which attach to the mounting
bracket.
Nozzle/Hose Vac Lever
Lubricate the nozzle/hose vac lever on top of the nozzle once a season with light oil.
Cleaning Equipment
Clean underside of the yard vacuum once a season to prevent build-up of debris.
Follow steps below for this job:
1. Disconnect and ground spark plug wire. Empty the fuel tank by running
engine until tank is dry.
2. Tip the yard vacuum so that it rests on its side, keeping the muffler side
down. Hold yard vacuum firmly.
3. Scrape and clean the underside of the deck and nozzle with a suitable tool.
Do not spray with water.
IMPORTANT: Do not use a pressure washer or garden hose to clean your unit.
These may cause damage to bearings, or the engine. The use of water will result in
shortened life and reduce serviceability.
4. Put the yard vacuum back on its wheels on the ground.
Cleaning The Flail Screen
If the discharge area becomes clogged, remove the flail screen and clean area as
follows:
1. Stop the engine. Make certain the chipper/shredder vacuum has come to a
complete stop.
2. Before unclogging the discharge chute, disconnect and ground the spark
plug wire.
3. Remove the vacuum bag or blower chute from the unit as instructed in the
OPERATION section to obtain access to flail screen.
SERVICE AND MAINTENANCE
CAUTION
4. Remove the three self tapping screws securing the belt cover, and remove
belt cover. See Figure 23.
5. Remove self tapping screw on right side of unit that attaches to the flail
screen. See Figure 24.
17
Figure 23
Figure 24