Qualcast 16/18 manual Fault Finding, Under-deck Access, Blade Maintenance, Engine Maintenance

Models: 16/18

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Under-deck Access

Under-deck Access

Caution: Oil and/or petrol spillage and hard starting may occur unless the following procedure is used when access is required to the underside of the machine.

1.Ensure that the petrol tank is empty or nearly empty.

2.For models fitted with Briggs and Stratton engines:

Remove wing nut and bolt and lower the handle to rest on the floor Fig 10.

Stand the machine on its back Fig 10. Do not tip the mower on its side.

Blade Maintenance

Stand the machine on its back, or its side (see Under- deck Access). Inspect the blade Fig 11A and check that the blade bolt Fig 11B is tight. If the blade is blunt or damaged, fit a new blade.

Use the following procedure to remove and replace the blade.

1.Hold the blade (using gloves or a piece of cloth). Using and referring to Fig 11, remove the

bolt Fig 11B and items C to D.

2.Clean all components and check for damage; renew as necessary.

3.Assemble items A-D as shown, ensuring that the coned washer D and the blade A are the correct way up.

4.Tighten the blade bolt to a torque of 40Nm (29lb ft).

Engine Maintenance

Perform the following operations at the specified periods to ensure long and reliable service from your mower engine.

1.Change engine oil - refer to engine manual for details.

2.Check starter cord - extend the starter cord and check for wear.

3.Clean/change air filter - refer to engine manual for details.

4.Change spark plug - refer to engine manual for details.

Fault Finding

The following table gives checks and actions that you can perform if your machine does not operate correctly. If these do not identify/remedy the problem contact your Qualcast approved service agent.

Warning - switch engine off and remove spark plug before investigating fault.

Symptom

Possible Cause

Remedy

Engine will not start

Out of fuel

Fill petrol tank

 

Engine not primed

See Starting the Engine

 

Engine flooded with fuel

Leave for 10-15 minutes; restart

 

 

without priming

 

Spark plug lead disconnected

Connect lead

 

Spark plug dirty/worn

See engine maintenance manual

 

Machine has been incorrectly

See Under-deck Access

 

tipped on its side

 

 

 

 

Engine stops

Out of fuel

Fill petrol tank

 

Cutting blade obstructed

Switch off engine and clear

 

 

obstruction

 

Engine speed to low for conditions

Move throttle

 

(Mowers with throttle control)

 

 

 

 

Mower leaves ragged finish

Height of cut too low

Increase height of cut

 

Cutting blade blunt

Replace blade

 

Underside of machine badly

Clean mower (see After Mowing/

 

clogged

Storage)

 

Blade fitted upside down

Refit blade correctly

 

 

 

Land drive does not engage

Drive belt damaged

Contact a Qualcast Approved

(Self propelled models)

 

Service Agent

 

 

 

Excessive vibration/noise

Blade nut/bolt loose

Tighten blade nut/bolt

 

Cutting blade damaged

Replace blade

 

 

 

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Qualcast 16/18 manual Fault Finding, Under-deck Access, Blade Maintenance, Engine Maintenance