Carburettor Adjustments; Oil Service - Hayter 481S Owner's Handbook Manual

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CARBURETTOR ADJUSTMENTS

Carburettor adjustments should only be made by an authorised Briggs & Stratton dealer.
Under no circumstances should the engine be adjusted to run at a speed in excess of
3,000 r.p.m.

OIL SERVICE

Refer to the Maintenance Schedule at the end of this section and ensure that the recommen-
dations are followed. More frequent service is required when operating in adverse conditions.
- Check the oil level every 5 hours or daily and ensure that the correct oil level is main
tained. Refer to-'Before Starting the Engine Oil Recommendations' for oil checking
procedure and filling instructions.
- Drain the engine oil after the first 5 hours of operation and thereafter at the end of
every grass cutting season.
- Change the oil while the engine is warm. Refill with fresh clean oil of the recom-
mended SAE viscosity grade. Refer to -'Before Starting the Engine -
: Oil Recommendations'.
WARNING - PREVENT ACCIDENTS: Drain fuel by running the engine until the fuel
tank is empty and the engine stops before attempting to tip the mower for oil draining
purposes.
- Remove the spark plug lead and disconnect the negative bat-
tery lead and allow the engine to cool. Tip the mower over on
to its left hand side thus ensuring that the air cleaner is kept
uppermost to prevent engine damage. Remove the oil filler dip-
stick and drain the oil into a suitable container.
MAINTENANCE
1. Engine
2. Spark Plug Lead
3. Spark plug
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1
2
STOP
3
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