Rockwell Shop Series RS8080, User Manual

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139CC 40CM PETROL LAWN MOWER EN
14
PROBLEM POSSIBLE FAULT REMEDY
Engine will not
turn over
Incorrect oil level. Check oil level.
Obstruction under deck. Remove obstruction.
Engine smokes
Excess oil level. (Blue /white/grey smoke) Check oil level.
Air cleaner cartridge soaked or blocked
(Black smoke).
Service air cleaner.
Engine runs
then stops
Fuel starvation. Fill fuel tank.
Fuel cap vent blocked.
Fuel tap closed.
Clean fuel cap vent.
Check fuel tap position
Engine will not
start
Engine under load. Raise height of cut.
Fuel starvation.
Fill fuel tank.
Check fuel tap position
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.
Faulty spark plug. Clean and adjust gap or replace.
Engine runs
rough
Spark plug lead becoming disconnected in
use.
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 tank and fill with correct fuel.
Engine
vibrates
excessively
Mounting bolts loose. Tighten bolts
Blade bolt loose. Tighten bolt
Blade out of balance. Check/Replace Blade
Bent crankshaft. Consult manufacturer
Uneven cut
Undulating ground conditions Change direction of travel
Blade worn Replace Blade
Blade out of balance Check/Replace Blade
Wheels / roller damaged Inspect and replace as necessary
Discharge
chute blocks
Grass is wet Mow dry grass
Cut height too low Increase cut height
Grass catcher full Empty grass catcher
Airflow through the grass catcher is
restricted
Clean the grass catcher
Engine speed too slow Set throttle to Max position
6. TROUBLE SHOOTING