Replacing Spark Plugs; Removing Debris From Engine; Replace Fuel Filter; Changing Rubber Flap - Toro 07050 Operator's Manual

Replacing Spark Plugs

Replace spark plugs or reset gap after every 200 operating
hours to assure proper engine performance and reduce
exhaust emission level.
Correct spark plug to use is a Champion RC 12YC or
equivalent.
Recommended air gap is .040".
Note: The spark plug usually lasts a long time; however,
the plug should be removed and checked whenever the
engine malfunctions.
1. Clean area around spark plugs so foreign matter cannot
fall into cylinder when spark plug is removed.
2. Pull spark plug wires off spark plugs and remove plugs
from cylinder head.
3. Check condition of side electrode, center electrode, and
center electrode insulator to assure there is no damage.
Figure 20
Important A cracked, fouled, dirty or otherwise
malfunctioning spark plug must be replaced. Do not sand
blast, scrape, or clean electrodes by using a wire brush
because grit may eventually release from the plug and fall
into the cylinder. The result is usually a damaged engine.

Removing Debris From Engine

To ensure proper cooling, make sure the grass screen,
cooling fins and other external surfaces of the engine are
kept clean at all times.
Every 100 hours of operation (more often under extremely
dusty, dirty conditions) remove the blower housing and
other cooling shrouds and clean the cooling fins and
external surfaces as necessary. Make sure cooling shrouds
are reinstalled.
Note: Operating the engine with a blocked grass screen,
dirty or plugged cooling fins or cooling shrouds removed,
will cause engine damage due to overheating.
.040"
17

Replace Fuel Filter

Replace fuel filter after every 600 hours of operation.
1. Place a clean container under fuel filter.
2. Remove clamps securing fuel filter to fuel lines.
Figure 21
1. Fuel filter
3. Install new fuel filter to fuel lines with clamps
previously removed. Filter to be mounted so arrow
points toward carburetor.

Changing Rubber Flap

Replace rubber flap when it becomes worn or damaged.
Caution
Change rubber flap on a flat, level surface and
block wheels to prevent sweeper from rolling.
Failure to do so may result in personal injury.
1. Remove (10) capscrews, washers, and nuts mounting
flap and flap retainer.
2
1
Figure 22
1. Rubber flap
2. Replace with new rubber flap and fasten securely.
1
2. Flap retainer