Engine - Hayter SST38/ST42 Operator's Manual

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ENGINE

With the tractor on a level surface check that the engine has been filled with the correct grade of oil (SAE
30 engine oil) and to the recommended level - never overfill. Fill the fuel tank with fresh unleaded premi-
um petrol. If the tank is more than 1/3rd full of old untreated petrol, drain and then refill. If less than 1/3rd
full of old untreated fuel, top up completely with new premium unleaded petrol.
Move the throttle control to the 'Fast' position. If the engine is cold, select the choke position.
Ensure that the parking brake is engaged
Insert the ignition key and turn clockwise to the 'Engine Start' position.
If the engine fails to turn over check:
- That the battery terminals are clean and securely connected.
- That the 15 amp fuse beneath the fuel tank is securely in place and has not blown.
- That the battery is charged.
If the engine turns over but does not start, check:
- That the fuel tank is full.
- That the spark plug lead/leads is/are connected.
- That the outlet in the fuel tank is not blocked.
- That the spark plug/plugs is/are clean and set to the correct gap.
- That the fuel filter is not blocked.
- That the fuel tap is in the 'Open' position.
If the engine misfires, loses power or stalls in use check:
- That the fuel tank contains fuel.
- That the fuel filter is not blocked.
- That there are no blockages in the air intake on top of the engine cover.
IMPORTANT: If there is evidence that the engine is overheating or that engine oil consumption is
excessive contact your dealer for further advice.
MAINTENANCE
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