Hayter Mowers 491G, 490G manual Trouble Shooting, Problem Causes Corrective Action

Page 16

TROUBLE SHOOTING

PROBLEM

CAUSES

CORRECTIVE ACTION

 

 

 

 

 

 

1.

Engine stop lever released

1.

Operate engine stop lever

Engine will not turn

2.

Incorrect oil level

2.

Check oil level

3.

Obstruction under deck

3.

Remove obstruction

over

4.

Battery discharged (if fitted)

4.

Charge battery

 

 

 

 

 

 

 

1.

Excess oil

1.

Check oil level

Engine smokes

2. Air cleaner cartridge oil

2.

Service air cleaner

soaked or blocked

 

 

 

 

 

 

 

 

 

 

Engine runs then stops

1.

Fuel starvation

1.

Fill fuel tank

2. Fuel cap vent blocked

2.

Clean fuel cap vent

 

 

 

 

 

 

1.

Engine under load

1.

Raise height of cut

 

2.

Incorrect/contaminated fuel

2.

Drain tank and fill with correct

 

 

 

fuel

 

3.

Spark plug lead disconnected

3.

Connect spark plug lead

Engine will not start

4. Engine brake not released

4.

Operate engine brake lever

 

5.

Faulty spark plug

5.

Clean and adjust the gap or

 

 

 

replace

 

6.

Battery discharged (if fitted)

6.

Charge battery

 

7.

Wiring fault

7.

Check wiring

 

 

 

 

 

 

1.

Spark plug lead becoming

1.

Connect spark plug lead

 

disconnected in use

 

 

Engine runs rough

2.

Faulty spark plug

2.

Clean and adjust gap or replace

3. Air cleaner blocked

3.

Service air cleaner

 

 

4.

Incorrect/contaminated fuel

4.

Drain tank and fill with correct

 

 

 

fuel

 

1.

Mounting bolt loose

1.

Tighten bolts

Engine vibrates exces-

2. Cutterblade bolt loose

2.

Tighten bolt

sively

3. Cutterblade out of balance

3.

Balance cutterblade

 

4.

Bent Crankshaft

4.

Consult your dealer

 

 

 

 

 

 

1.

Undulating ground conditions

1.

Change direction of travel

Uneven cut

2.

Cutterblade worn

2.

Sharpen cutterblade

3.

Cutterblade out of balance

3.

Balance the cutterblade

 

 

4.

Wheels/roller damaged

4.

Insect & replace as necessary

 

 

 

 

 

PROBLEM

CAUSES

CORRECTIVE ACTION

 

 

 

 

 

Discharge chute blocks

1.

Grass is wet

1.

Mow dry grass

 

2.

Cut height is too low

2.

Increase cut height

 

3.

Grassbag full

3.

Empty grassbag

 

4. Airflow through the grassbag

4.

Clean the grassbag

 

is restricted

 

 

Mower is hard to push

1.

Cut height too low

1.

Increase cut height

 

2.

Wheels/roller damaged

2.

Inspect and replace as neces-

 

 

 

sary

 

 

 

 

Mower will not self

1.

Clutch out of adjustment

1. Adjust clutch cable

propel

2.

Drive belt damaged

2.

Replace drive belt

 

 

 

 

Poor grass collection

1. Airflow through the grassbag

1.

Clean the grassbag

 

is restricted

 

 

 

2.

Discharge chute blocked

2.

Remove blockage

 

3.

Wet grass

3.

Mow in dryer conditions

 

4.

Grassbag full

4.

Empty grassbag

Cutterblade drive will

1.

Engine stop lever not fully

1.

Push fully forward disengage

not engage/disengage

forward

 

 

 

 

 

 

 

16

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Contents Harrier Contents Introduction Specifications / Main Features Overall dimensionsSafety Precautions Maintenance & Storage Control SymbolsAssembling the Mower Before First USE Operating the Mower Slopes Height Of CutGrassbag Without Grass CollectionOperating the Mower / Maintenance Schedule Maintenance ScheduleFriction Disc Non Grassed AreasMower Maintenance Clutch Cable Adjustment Cutterblade AssemblySecuring Nuts & Bolts LubricationCutterblade Sharpening StorageBattery Charging Code 491 only January FebruaryMarch AprilTrouble Shooting Problem Causes Corrective ActionWarrantynotes Page Page Service Record Customer Information