Trouble Shooting - Hayter Harrier 56 Autodrive VS BBC Operator's Manual

TROUBLE SHOOTING

PROBLEM CAUSES
Engine stop lever released
Engine will not
Incorrect oil level
turn over
Obstruction under deck
Excess oil
Engine smokes
Air fi lter cartridge oil soaked or
blocked
Fuel starvation
Engine runs then
stops
Fuel cap vent blocked
Engine under load
Incorrect / contaminated fuel
Spark plug lead disconnected
Engine will not
Engine brake not released
start
Faulty spark plug
Wiring fault
Spark plug lead becoming
disconnected in use
Faulty spark plug
Engine runs rough
Air fi lter blocked
Incorrect / contaminated fuel
Mounting bolt loose
Blade bolt loose
Engine vibrates
excessively
Blade out of balance
Bent crankshaft
CORRECTIVE ACTION
Operate engine stop lever
Check oil level
Remove obstruction
Check oil level
Service air fi lter
Fill fuel tank
Clean fuel cap vent
Raise the height of cut
Drain tank and fi ll with correct fuel
Connect spark plug lead
Operate engine brake lever
Clean and adjust the gap or
replace
Check wiring
Connect spark plug lead
Clean and adjust gap or replace
Service air fi lter
Drain tank and fi ll with correct fuel
Tighten bolt
Tighten bolt
Balance blade
Consult your dealer
25
PROBLEM CAUSES
Undulating ground conditions
Blade worn
Uneven cut
Blade out of balance
Wheels/roller damaged
Grass is wet
Cut height too low
Discharge chute
blocks
Grass bag full
No airfl ow through the grass bag
Cut height too low
Mower is hard to
push
Wheels/roller damaged
Clutch out of adjustment
Mower will not self
propel
Drive belt damaged
No airfl ow through the grass bag
Discharge chute blocked
Poor grass
condition
Wet grass
Grass bag full
BBC control lever not fully forward
Blade drive will not
engage/disengage
Faulty blade brake clutch
CORRECTIVE ACTION
Change direction of travel
Sharpen blade
Balance the blade
Inspect and replace as necessary
Mow dry grass
Increase cut height
Empty grass bag
Clean the grass bag
Increase cut height
Inspect and replace as necessary
Adjust clutch cable
Replace drive belt
Clean the grass bag
Remove blockage
Mow dry grass
Empty grass bag
Push fully forward to disengage
Consult your dealer