Hayter Mowers Harrier 48 48ST - Manual (Page 38)

485101MT210999A
PROBLEM POSSIBLE FAULT REMEDY
Engine will not start Engine under load Raise height of cut
Fuel starvation Fill fuel tank
Engine cold Set throttle to ‘choke’ position
Incorrect/contaminated fuel Drain fuel tank and fill with
correct fuel
Spark plug lead disconnected Connect spark plug lead
Throttle setting incorrect Set throttle to ‘fast’ position
Engine brake not released Operate engine brake lever
Faulty spark plug Clean and adjust gap or replace
Engine runs rough Spark plug lead becoming Connect spark plug lead
disconnected in use
Faulty spark plug Clean and adjust gap or replace
Air cleaner blocked Service air cleaner
Incorrect/contaminated fuel Drain fuel tank and fill with
correct fuel
Engine vibrates excessively Mounting bolts loose Tighten bolts
Cutterbar screws loose Tighten screws
Cutterbar out of balance Balance cutterbar
Bent crankshaft Consult your dealer
Cutterbar drive will not Faulty blade brake clutch Consult your dealer
engage / disengage
FAULT FINDING 1.36 1.36
FAULT FINDING Continued.