Mower Maintenance; Engine Detail; Carburettor Adjustments; Oil Service - Hayter Harrier 48 PRO Owner's Handbook Manual

MOWER MAINTENANCE

Engine Detail

(Refer to fi g.23)

Carburettor Adjustments

These adjustments should only be made by an authorised Briggs
& Stratton dealer. Under no circumstances should the engine
be adjusted to ru at a speed in excess of that shown on the
Declaration of Conformity.

Oil Service

Check the oil level daily before starting the engine and ensure
that the correct oil level is maintained. Refer to Assembling the
Mower Before First Use for oil checking and fi lling instructions.
Change the engine oil after the fi rst 5 hours of operation and
thereafter according to the Maintenance Schedule.
• Drain the fuel by running the engine until the fuel tank is
empty.
• Remove the spark plug lead.
• Allow the engine to cool.
• Drain the oil whilst the engine is warm (not hot).
Fig. 23
1.
5
6
2.
4
7
3.
3
4.
2
5.
1
10
8
9
• Tip the mower over on to its left handside ensuring that the
air cleaner is kept uppermost to prevent engine damage.
• Remove the oil fi ller dipstick and drain the oil into a suitable
container.
(Refer to fi g.24)
• Refi ll with new oil of the recommended SAE viscosity
grade. Refer to Assembling the Mower Before First Use.

Air Cleaner Service

To service the air cleaner, loosen the knob (1) and remove
cover (2). Carefully remove the foam fi lter (3) and cartridge (4)
together. Separate the foam fi lter (3) from the cartridge (4).
(Refer to fi g.25)
If very dirty, replace.
• Do not use petroleum solvents.
• Do not use pressuired air.
• Do not oil the cartridge.

Spark Plug Service

Use only Briggs & Stratton (Part number 19368) spark tester (1)
Spark Plug / Lead 6. Oil Fill / Dipstick
Exhaust 7. Fuel Cap
Exhaust Guard 8. Air Cleaner
Cover 9. Carburettor
Start Grip
Fig. 24 Fig. 25
1
4
13
to check for a spark as shown in the diagram.
(Refer to fi g.26)
Replace the spark plug every 100 hours or every season,
whichever occurs fi rst. A spark plug wrench is available from
any authorised Briggs & Stratton service dealer.
Check the spark plug gap with a feeler gauge and set at 0.50mm.
(Refer to fi g.27)
Fig. 26 Fig. 27
2
3
1