Hayter Mowers 48 PRO User Manual

OWNER'S HANDBOOK

Harrier 48 Pro

CODE

486A

(English Version)
FROM SERIAL NO: 486A001001 HANDBOOK: 486046 (Rev.1.)
Issue :10.05.04

1.2

MODEL CODE 486A
Engine Briggs & Stratton Intek Edge 55
Engine Type 12K682-0116-E1

Engine / Cutterblade Speed 2800 rpm
Fuel Type Unleaded Petrol
Fuel Capacity 1.5 litres
Oil Type SAE 30 engine oil
Oil Sump Capacity 0.6 litres
Spark Plug 491055 (Briggs & Stratton)
Spark Plug Gap 0.76mm
Width of Cut 480mm
Height of Cut 12 - 65mm
Overall Dimensions 1044 x 514 x 1377mm
Dry Weight 49 Kg

1. Spark Plug Lead

2. Primer Bulb

3. Engine Cover

4. Air Cleaner

5. Fuel Cap

6. Serial Number Label

7. Oil Filler Cap & Dipstick

8. Handlebar Securing Knob

9. Rear Deflector

10. Engine Start Grip

11. Throttle Control

12. Engine Stop Lever

13. Handlebar

14. Ground Drive Clutch Lever

15. Grassbag Assembly

16. Support Brace

17. Handlebar Height Adjuster

18. Height of Cut Lever

19. Exhaust Guard

20. Front Rail

20

1

2

4

5

6

7

9

10

12

13

14

15

16

18

19

11

8

3

17

Main Features

Specifications

MAIN FEATURES /SPECIFICATIONS

1ST Year (12 months)

We certify that this service has been
carried out by an Authorised Hayter

Service Dealer

Date:

1ST Year (12 months)

Owner’s Name:

Serial Number:

Date:

2nd Year (24 months)

We certify that this service has been
carried out by an Authorised Hayter

Service Dealer

Date:

Owner’s Name:

Serial Number:

Date:

Note for dealer: Please retain this voucher for your records.

Note for dealer: Please retain this voucher for your records.

2nd Year (24 months)

1.18 Maintenance Schedule

1.19 - 1.25 Mower Maintenance

1.19 - Engine

1.19 - Throttle Cable Adjustment

1.19 - Carburettor Adjustments

1.20 - Oil Service

1.20 - Air Cleaner Service

1.21 - Spark Plug Service

1.21 - Keeping Engine Clean

1.21 - Grassbag

1.22 - Deck Housing

1.22 - Securing Nuts and Bolts

1.22 - Clutch Cable Adjustment

1.23 - Lubrication

1.23 - Cutterblade Removal

1.24 - Cutterblade Assembly

1.24 - Cutterblade Sharpening

1.25 - Storage

1.26 - 1.27 Trouble Shooting

1.28 Declaration of Conformity

1.29 - 1.31 Parts List

1.32 Parts list Diagram

1.34 - 1.35 Notes

1.36 Customer Info

1.2 Main Features/Specifications

1.5 Contents

1.6 Introduction

1.7 Warranty

1.8 - 1.11 Safety Precautions

1.11 Safety Symbols

1.11 Decal Symbols

1.12 Assembling the Mower

1.12 - Delivery Checklist

1.12 - Handlebar

1.12 - Adjust Handlebar Height

1.12 - Grassbag Attachment

1.13 Before Starting the Mower

1.13 - Prevent Engine Damage

1.13 - Oil Type

1.13 - Check Oil Level

1.13 - Fuel Type

1.14 - 1.17 Operating The Mower

1.14 - Controls

1.14 - Starting Step 1

1.14 - Step 2

1.14 - Step 3

1.15 - Forward Travel

1.15 - Turning

1.15 - Stopping

1.15 - Slopes

1.16 - Height of Cut

1.16 - Before Mowing

1.16 - Grassbag

1.16 - Without Grass Collection

1.17 - Heavy Growth

1.17 - Friction Disc

1.17 - Non-Grassed Areas

1.5

CONTENTS

Thank you for purchasing a Hayter mower. The following pages are designed to help you gain
safe and efficient service from your mower.

IMPORTANT: This ‘Owners Handbook’ should be regarded as part of the mower as it gives
essential information regarding mower safety, operation, maintenance and specifications. Read
and understand this handbook prior to operating your mower for the first time. Make sure you
are familiar with all the controls and points of regular maintenance. If you have any doubts,
consult your local Hayter authorised dealer who will be pleased to give you assistance.

IMPORTANT: This mower is designed solely for use in a domestic grass cutting
environment. Use in any other way is considered as contrary to the intended use. Compliance
with and strict adherence to the conditions of operation, service and repair as specified in this
handbook also constitute essential elements of the intended use.
This mower should be operated, serviced and repaired only by persons who are familiar with
its particular characteristics and who are acquainted with the relevant safety procedures.

The safety precautions listed in this handbook and all other generally recognised regulations on
safety must be observed at all times.
Any arbitrary modifications carried out to this machine may relieve Hayter Limited of
liability for any resulting damage or injury.

Hayter mowers are robustly constructed and designed for efficient economical
performance under normal mowing conditions. Correct operation and maintenance will ensure
a long and satisfactory service life. Prior to despatch from our factory every effort is made to
ensure that your mower is delivered in perfect condition.

Throughout this handbook all references to left and right are as viewed from behind the han­dlebar, in the direction of forward travel.

This handbook is based on information available at the time of publication.

HAYTER LIMITED reserve the right to amend product specifications without prior notification.

1.6

INTRODUCTION

1.7

WARRANTY

LIMITED WARRANTY

Hayter Limited warrants to the original user/purchaser that this unit shall be free from defects in

material and workmanship under normal use and service for a period of one year from the date
of purchase. The manufacturers of the engine furnish their own warranty and services are
provided through their authorised network (Refer to "Engine Warranty Statement"). To qualify
for the full benefit of the warranty, the Warranty Registration Card must be returned to Hayter
Limited within 14 days of purchase. If the selling dealer has not returned the Warranty
Registration Card which is attached to the rear of the Owners Handbook please complete and
return. Subject to the conditions and exclusions noted in this limited warranty, we shall at our
option, repair or replace any warranted part during the applicable period. If you are in doubt or
experience any difficulty, please consult a Hayter Authorised Service Dealer for clarification.

A 90 day warranty period applies to those items which are subject to normal wear and tear e.g.
wheels, cutterbars, cables, grassbags and other consumable wearing parts.

All machines which are fitted with a genuine Hayter Friction Disc or Crankshaft Support
Bearing as original equipment before use, are covered by a Lifetime Warranty against the
engine crankshaft bending. Note: friction washers, Blade Brake Clutch (B.B.C.) units and other
such devices are not applicable. Only machines fitted with a genuine Hayter friction disc or
crankshaft support bearing, which are used in accordance with the recommended operating and
maintenance procedures, are covered.

This warranty does not apply to any unit that has been tampered with, altered, misused, abused or
used for hire, and will become invalid if non genuine Hayter parts are fitted. This warranty does
not cover for minor mechanical adjustments unless they are due to defective material or
workmanship. Consult the Owner's Handbook or a Hayter Authorised Service Dealer for
assistance when making these adjustments.

To make a warranty claim, return the unit to a Hayter Authorised Service Dealer along with
proof of purchase stating the machine serial number and date of purchase. Subject to the
conditions and exclusions in this limited warranty, the authorised dealer will, at our option, repair
or replace any warranted part within the duration of the warranty period.

This limited warranty gives you specific legal rights and is in addition to any statutory rights to
which you may be entitled and your statutory rights are not affected by this warranty. If you need
additional information concerning this written warranty, or assistance in obtaining services,
please write to : HAYTER LIMITED, Service Department, Spellbrook, Bishop's Stortford,

Hertfordshire CM23 4BU

UK ONLY: Details of your local Hayter authorised dealer are contained in Yellow Pages and

the Hayter Website www.hayter.co.uk or contact:- Freephone 0800 616298.

Warranty 070199 (Harrier)

This safety alert symbol indicates important safety messages. When
you see this symbol be alert to the possibility of injury. Carefully read
the following and inform others.

Your mower is perfectly safe if used correctly. Failure to observe the
following precautions may result in serious injury.

Before using the mower read the owners handbook carefully. Pay par­ticular attention to the safety precautions. Ensure that you are familiar
with the controls and the proper use of the equipment. Learn how to
stop the mower quickly in an emergency.

Never allow children or people unfamiliar with these instructions to
use the mower.

Never mow while people, especially children, or pets are nearby.

Keep in mind that the user is responsible for accidents or hazards
occurring to other people or their property.

While mowing, always wear substantial footwear and long trousers.
Do not operate the equipment when barefoot or wearing sandals.

Thoroughly inspect the area where the mower is to be used and remove
all objects which may be thrown by the machine.

WARNING: Petrol is highly flammable.

- Store fuel in containers specifically designed for this purpose.

- Add fuel before starting the engine. Never remove the cap from the
fuel tank or add petrol while the engine is running or when the engine
is hot. Allow the engine to cool for at least two minutes before refu­elling.

- Do not attempt to start the engine if petrol is spilled or a smell of
petrol is present. Move the mower away from the area of spillage
and avoid creating any source of ignition until petrol vapours have
dissipated.

1.8

SAFETY PRECAUTIONS

Safety Alert Symbol

Preparation

Training

- Always use fresh fuel. Stale fuel can block the carburettor and cause
leakage.

- Replace fuel tank and oil tank caps securely.

A damaged cutterblade or loose fixing bolt are major hazards. Before
use, always visually inspect the cutting mechanism to ensure that it is
in good condition. A damaged cutterblade must be replaced immedi­ately with a genuine Hayter replacement part

Do not operate the engine in a confined space where exhaust fumes
(carbon monoxide) can collect. Refuel outdoors only and do not smoke
while refuelling.

Always pull the starter cord slowly until resistance is felt. Then pull
the cord rapidly to avoid kickback and prevent hand or arm injury.

Mow only in daylight or good artificial light.

Avoid using the mower on wet grass, where feasible.

Always be sure of your footing on slopes.

Walk, never run.

Mow across the face of slopes, never up and down.

Exercise extreme caution when changing direction on slopes.

Do not mow excessively steep slopes of more than 20 degrees.

Use extreme caution when reversing or pulling the mower towards you.

Stop the engine before moving the mower across areas other than grass.

Never operate the mower unless the guards are securely in position and
in good condition.

Do not change the engine governor settings or overspeed the engine.

Disengage the rear roller drive clutch before starting the engine.

Start the engine carefully, with feet well away from the cutterblade.

1.9

SAFETY PRECAUTIONS

Operation

Preparation

Do not tilt the mower when starting the engine.

Do not put hands or feet near or under rotating parts.

Never pick up or carry the mower while the engine is running.

Never lift the rear deflector while the engine is running.

Never touch the exhaust/exhaust guard or cooling fins when the engine
is hot.

Stop the engine and disconnect the spark plug lead:

- Before clearing blockages or unclogging the discharge chute.

- Before cleaning/checking or working on the mower.

- After striking a foreign object. Inspect the mower for damage and
ensure necessary repairs are made before re-starting.

- If the mower starts to vibrate abnormally (check immediately).

Stop the engine:

- Whenever you leave the mower.

- Before refuelling.

- Reduce throttle control setting during engine shutdown.

Keep all nuts, bolts and screws tight to ensure that the equipment is in
safe operating condition.

Frequently check fuel lines and fittings for cracks or leaks and replace
if necessary.

Never check for a spark when the spark plug is removed. (Use approved
tester)

Inspect the exhaust periodically and replace if worn or leaking.

Never crank the engine with the spark plug removed.

Never start the engine with the air-cleaner or air-cleaner cover
removed.

Never store the mower with petrol in the tank within an enclosed area
where fumes may reach an open flame or spark.

1.10

SAFETY PRECAUTIONS

Operation

Maintenance & Storage

Allow the engine to cool before storing in any enclosure. To reduce the
fire hazard, keep the engine and the surrounding deck area free of
grass, leaves, or excessive grease.

Check the rear deflector and grassbag frequently for wear or deterioration.
Replace worn or damaged parts for safety.

If the fuel tank has to be drained, this should be done outdoors and
when the engine is cool.

Wear strong work gloves when removing and reassembling the cut­terblade.

Always replace worn or faulty parts with genuine Hayter parts.

1.11

Maintenance & Storage

SAFETY PRECAUTIONS

Safety Symbols

Safety Alert - Be aware to the
possibility of injury.

Danger of severing toes or fin­gers in cutting mechanism.

Carefully read the Owners
Handbook before using the
machine.

Danger of being hit by thrown
objects.

Stop engine and remove spark
plug lead before working on
the mower.

Keep bystanders at a safe
distance from the mower.

Engine Stop (Symbol) Height of Cut Adjustment (Symbol) Throttle Control (Symbols)

Control Symbols

STOP

305113

CS198

Slow Fast

Choke

Adjust Handlebar Height

Remove the mower from the packaging and check that the following
items have been supplied correctly. If any items are missing contact,
your local Hayter dealer.

1. Engine Handbook.

2. Grassbag.

To prevent accidents cut off the long ribbon attached to the grass­bag and discard.

Unscrew the handlebar securing knobs sufficiently to allow the handle­bar to pivot. Move the engine stop lever away from the engine to avoid
damage and unfold the handlebar to the operating position. Make sure
the knobs are assembled to the outside of the handlebar and tighten to
secure in position.

Take care to ensure that the control cables do not become snagged at
the pivot point.

Unscrew the two handlebar securing Knobs to release the handlebar
brace then loosen the two nyloc nuts at the base of the handlebar suf­ficiently to allow it to be moved to the upper, middle or lower position.
Re-attach the handlebar brace in relevant hole for best position and
comfort. Ensure that both sides are set to the same height. Tighten
both the nyloc nuts and knobs to secure the handlebar in place.

Raise the rear deflector, lower the grassbag through the handlebar and
hook in position. Lower the deflector to rest on the grassbag

1.12

ASSEMBLING THE MOWER

Handlebar

Delivery Checklist

Grassbag Attachment

To prevent engine damage the engine is shipped without oil or
petrol. The engine must be filled with the correct grade of oil and
petrol before starting the engine.

Always use high quality detergent oil classified “For service SE, SF,
SG” SAE 30 oil. Never use additives with recommended oils.
SAE 10W-30 multigrade oil may be used, but this will result in higher
engine operating temperatures with consequential high oil consump­tion. It is imperative that the oil level is checked more frequently if this
grade of oil is used in order to guard against serious engine damage.
To prolong the life of your engine it is important that the oil is changed
after the first 5 hours of use - refer to ‘Maintenance Schedule’.

Clean around the oil filler cap before removing. With the mower on a
level surface, unscrew and remove the oil filler - dipstick. Wipe oil
from it with a clean cloth. Screw the oil filler - dipstick back in place,
then unscrew and remove it to check the oil level.

The oil level is correct when it is at the full mark on the dipstick.

DO NOT OVERFILL.

Always use clean, fresh unleaded petrol. Purchase fuel in quantities
that can be used within 30 days. Never mix oil with petrol. For added
engine protection Briggs & Stratton recommend the use of their fuel
additive which is available from an authorised Briggs & Stratton serv­ice dealer.

Fill to base of neck to allow for fuel expansion. Do not overfill the
fuel tank.

1.13

Prevent Engine Damage

BEFORE STARTING THE

MOWER

O

I

L

ADD

FULL

0.15
Litres

Oil Type

Check Oil Level

Fuel Type

Controls

Operate all control levers several times and ensure that the cables
move freely. Check that the engine stop and ground drive clutch levers
return freely to their rest position when released.
Whilst operating the engine throttle mechanism slight resistance
should be felt when moving the lever to the ‘choke’ position.

Move the throttle control lever to the ‘choke’ position before start­ing a cold engine. Move the throttle control lever to the ‘fast’ posi-
tion before starting a warm engine.

Stand behind the mower and hold the handlebar together with the
engine stop lever with your left hand. With your right hand hold the
engine start - grip and pull slowly until resistance is felt, then pull rap­idly to crank the engine. Carefully return the start grip to the storage
position when the engine starts.
If the engine does not start after 5 attempts - refer to “Trouble
Shooting”.

The engine stop lever must be held firmly against the handlebar to
start and keep the engine running. If the engine stop lever is
released the engine will stop.

Allow the engine to warm up and move the throttle lever to the
‘fast’ position after starting a cold engine.

To prevent damage never pull the engine start grip when the
engine is running.

1.14

Starting - Step 1

OPERATING THE MOWER

Step 2

Step 3

Hold the handlebar and operate the ground drive clutch lever to power
the mower in a forward direction.

When the ground drive clutch lever is disengaged the mower may be
pushed. This feature is useful when mowing in confined areas.

If the engine stop lever is released the engine will stop.

To make a wide turn steer the mower with the handlebar in the direc­tion required.
To make a tight turn release the ground drive clutch lever, apply down­ward pressure on the handlebar to raise the front wheels just above
ground level and steer in the required direction.

To prevent accidents do not raise the front of the mower exces­sively when making a turn. Never raise the rear of the mower
when the engine is running.

Release the ground drive clutch lever, reduce the throttle setting and
release the engine stop lever.

Emergency stop: Release both ground drive clutch lever and engine
stop lever together.

If the engine fails to stop, move the throttle lever to the ‘slow’ posi­tion and disconnect the spark plug lead.

To prevent engine damage do not use the mower on slopes greater

than 20 degrees.

1.15

Forward Travel

Turning

OPERATING THE MOWER

Stopping

STOP

Slopes

Move the height of cut lever sideways to disengage it from the locking
notch, then push forwards to lower or pull backwards to raise the height
of cut. Release the lever in the required position and ensure that it locks
firmly into one of the seven notch settings.

Always select a height of cut to suit operating conditions. Prevent
engine overloading and blockages by avoiding low cuts in long grass
conditions. Be prepared to make two cuts when the grass is long.

To prevent accidents thoroughly inspect the area and remove all
objects which when contacted by the mower cutterblade could
become dangerous projectiles. Inspect the area for hidden obstruc­tions which when contacted by the cutterblade could risk health
and safety. Remember the location of these obstructions and
ensure that you mow around them.

Raise the rear deflector and lift the grassbag through the handlebar and
lower the rear deflector to rest against the rear of the mower.

To empty the grassbag, pour out the grass clippings and shake the
grassbag vigorously to clean the airways. Good grass collection
depends on good air flow through the grassbag. When collecting grass
clippings it is important that the grassbag is emptied regularly to pre­vent blockages and engine overloading.

Remove the grassbag and operate the mower with the rear deflector in
the closed position.

1.16

OPERATING THE MOWER

+

-

Height of Cut

Before Mowing

305113

Grassbag

Without Grass Collection

Areas of heavy growth should be mown without collecting the clip­pings. If collection is required, first mow the area without the grass­bag at the maximum height of cut setting. Allow the grass clippings to
dry out and then mow the area at the maximum height of cut setting
with the grassbag fitted. Reduce the height of cut and mow the area
again as necessary until the required finish is obtained.

To prevent grass damage do not remove more than one third of grass
height in one cut.

The cutterblade is driven by the engine via a friction disc to help pre­vent damage occurring to the engine crankshaft and cutting mecha­nism when a hidden obstruction or overload is encountered.

Always stop the engine when a hidden obstruction or excessive vibra­tion is encountered. Disconnect the spark plug lead and examine the
cutting mechanism. ALWAYS replace a damaged cutterblade - refer to
“Maintenance”.

When moving the mower across non-grassed areas, stop the engine
and set the mower to the maximum height of cut to protect the cutting
mechanism.

1.17

OPERATING

Heavy Growth

Friction Disc

THE MOWER

305113

Non-Grassed Areas

STOP

To prevent accidents stop the engine disconnect the spark plug
lead before attempting to carry out maintenance procedures on
the mower.

Follow the hourly or calendar intervals, whichever occurs first. More
frequent service will be required if working for prolonged periods
under dusty, dry conditions, or when airborne debris is present or after
extensive operation cutting tall, dry grass.

After the very first five hours change the engine oil

Check the oil level

Remove grass debris from around the engine, exhaust/exhaust guard and
air ways in the top cowl and underside of the deck housing.

Remove grass debris from the grassbag and check for signs of damage.

Check the condition of guards and safety devices and the cutterblade.

Change the engine oil if continuously operating under heavy load or
high ambient temperature.

Service the air cleaner.

Lubricate wheels, pivot points and linkages and grease the inner con­trol cables at point of entry and exit from their outer casing.

Check the clutch cable adjustment.

Sharpen the cutterblade.

Change the engine oil.

1.18

MAINTENANCE SCHEDULE

25Hrs or Every Season

Daily

50Hrs or Every Season

First 5Hrs

Clean the engine cooling system. Clean more often under dusty
conditions or when airborne debris is present or after prolonged
operation whilst cutting tall, dry grass.

Replace the spark plug.

Check valve clearances.

1. Engine Cowl

2. Spark Plug / Lead

3. Carburetor

4. Exhaust Guard

5. Exhaust

6. Oil fill/Dipstick

7. Start Grip

8. Fuel Cap

9. Finger Guard

10. Air Cleaner

Loosen casing clamp screw (1) and move the governor lever (2) in
the direction of screw (1) as far as posible. Move the throttle con­trol to the choke position. Tighten casing clamp screw.

Should only be made by an authorised Briggs & Stratton dealer.
Under no circumstances should the engine be adjusted to run at a
speed in excess of that shown on the Declaration of Conformity.

1.19

MOWER

1

2

3

4

5

6

7

8

9

10

1

2

Engine

Throttle Cable Adjustment

Carburettor Adjustments

MAINTENANCE

100Hrs or Every Season

Check the oil level daily before starting the engine and ensure that the
correct oil level is maintained. Refer to-‘Before Starting the Mower’
for oil checking and filling instructions.

Change the engine oil after the first 5 hours of operation and thereafter
according to the ‘Maintenance Schedule’:-

1. Drain fuel by running the engine until the fuel tank is empty.

2. Remove the spark plug lead.

3. Allow the engine to cool.

4. Drain the oil while the engine is warm.(Not hot)

5. Tip the mower over on to its left hand side thus ensuring that

the air cleaner is kept uppermost to prevent engine damage.

6. Remove the oil filler dipstick and drain the oil into a suitable

container.

7. Refill with new oil of the recommended SAE viscosity grade.

(Refer to-‘Before Starting the Mower’)

To service the air cleaner, loosen the two screws (1) and remove cover
(2). Carefully remove pre-cleaner (3) and cartridge (4) wash in a solu­tion of liquid detergent and water. Allow to air dry thoroughly before
fitting.

If very dirty, replace.

- Do not use petroleum solvents.

- Do not use pressurised air.

- Do not oil the cartridge.

After servicing, install the pre-cleaner and cartridge in the assembly
base (5). Replace the cover and securely tighten the screw to the base.

1.20

MOWER

1

2

3

4

5

Oil Service

Air Cleaner Service

MAINTENANCE

Use only Briggs & Stratton spark tester (1) to check for a spark as
shown in the diagram.

Replace the spark plug every 100 hours or every season, whichever
occurs first. A spark plug wrench is available from any authorised
Briggs & Stratton service dealer.

Check the spark plug gap with a feeler gauge and set at 0.76mm.

Remove all grass and debris from the engine including the
exhaust/exhaust guard, the air ways in the top cowl and the surround­ing deck areas on a daily basis after use. Never spray the engine with
water during cleaning. Water can contaminate the fuel. Always clean
with a brush or compressed air.

Grass and debris may clog the engine’s air cooling system especially
after prolonged operation while cutting tall, dry grass. The internal cool­ing fins and surfaces may require cleaning to prevent overheating and
engine damage. We recommended that this service be carried out by an
authorised Briggs and Stratton dealer.

Remove grass debris from the grassbag immediately after use and
check its condition for signs of damage.

To prevent accidents replace a damaged grassbag immediately.

1.21

1

Spark Plug Service

Keeping Engine Clean

Grassbag

MOWER MAINTENANCE

Remove grass debris from the top and underside of the deck housing
immediately after use.

To prevent damage fertilisers and top dressings are particularly
corrosive. Thoroughly clean the mower deck immediately after use
on treated grass and store well away from corrosive materials.

Regularly check that all securing nuts and bolts are tight. Replace
missing or damaged items immediately.

Check the clutch cable operation every 25 operating hours and adjust
if necessary. The clutch cable is adjusted correctly when the belt drive
just engages with the clutch lever positioned 32-38mm from the han­dlebar.

Unscrew the lock nuts (1) and screw the adjuster (2) in or out as nec­essary. Tighten the locknuts (1) when correctly adjusted.

1.22

32-38mm

2

1

1CG480V36B

Securing Nuts & Bolts

Deck Housing

Clutch Cable Adjustment

MOWER

MAINTENANCE

Lubricate the wheels, pivot points and linkages with engine oil every 25
operating hours.

Apply a good quality medium grease to the inner control cables at the
point of entry and exit from their outer casing.

Drain the fuel by running the engine until the fuel tank is empty and the
engine stops. Remove the spark plug lead and allow the engine to
cool. Turn the mower on its left hand side and ensure that the air clean­er side of the engine is uppermost.
Firmly grip the end of the cutterblade with the gloved hand and remove
the bolt, spring washer and distance piece securing the cutterblade with
a 9/16” A/F spanner.

To prevent accidents never work on the cutterblade unless the
spark plug lead has been removed. The cutterblade has sharp
edges. ALWAYS wear strong gloves to protect your hands when
working on the cutterblade. DO NOT rotate tools towards the cut­ting edges to avoid the risk of injury should the tool slip. ALWAYS
use genuine Hayter replacement parts.

The condition of the cutterblade and its mounting arrangement should
be checked regularly for signs of wear or damage. Ensure that the cut­terblade is not bent or cracked.

A damaged cutterblade that is out of balance will vibrate excessively
and may break. DO NOT use an unbalanced cutterblade.

Regularly check that the bolt securing the cutterblade is tightened to the
specified torque of 54Nm.

Replace the cutterblade every 2 years of sooner if excessively worn or
damaged.

To prevent injury it is wise to seek assistance when turning the mower
on its side.

1.23

1CG480V33C

Lubrication

Cutterblade Removal

MOWER MAINTENANCE

1

2

3

Cutterblade Assembly

Assemble the cutterblade with the turned up edges facing towards the
engine. Secure the cutterblade using the bolt (1), spring washer (2), and
distance piece (3) and tighten to a torque of 54Nm

A slightly worn cutterblade may be re-sharpened. Both blade edges
must be sharpened equally to ensure balance. Sharpen the cutterblade
every 25 mowing hours or more frequently if conditions require.
Remove the cutterblade from the mower and clean using a brush and
water. Inspect the cutterblade for signs of damage.
Sharpen both cutting edges with a flat file to restore performance.

Ensure that the cutterblade is balanced. Use a screw driver with a
round shaft to support the cutterblade through its centre hole. Hold the
cutterblade horizontal and then release. A balanced cutterblade will
remain horizontal.

If the cutterblade is not balanced the heavy end will rotate downwards.
Sharpen the heavy end until the cutterblade is correctly balanced.

1.24

MOWER

MAINTENANCE

30°-45°

Cutterblade Sharpening

To store the handlebar unscrew the 2 small securing knobs sufficient­ly to allow it to be pivoted forwards to rest against the mower. Take
care to ensure that the control cables do not become snagged at the
pivot point and depress the engine stop lever to prevent it being dam­aged through contact with the engine spark plug.

Engines stored in excess of 30 days need to be protected with Briggs &
Stratton fuel additive or drained of fuel to prevent gum from forming in
the fuel system or on essential carburettor parts. To ensure your mower
is maintained in good working order it is important that the following
procedure is adopted. Refer to the Maintenance section as necessary.

Drain fuel from the engine by operating the engine until it stops.

Disconnect the spark plug lead.

Change the engine oil.

Remove the engine spark plug and pour 15ml of engine oil into the
engine cylinder and replace the spark plug. Do not exceed the stated
volume of oil as engine damage may occur on re-starting. Do not
replace the spark plug lead. Slowly pull the engine start - grip once
to crank the engine. This will distribute the oil and help prevent engine
corrosion.

Clean grass and debris from the engine cylinder, cylinder head cooling
fins, under top cowl, and around and behind exhaust/exhaust guard.

Clean all other areas of the mower and ensure that the grassbag is clean.

Lubricate the mower.

Treat metal parts with a water repellent anti-corrosion product.

Cover the mower with a protective sheet and store it in a dry, ventilat­ed area.

1.25

Storage

MOWER MAINTENANCE

PROBLEM POSSIBLE FAULT REMEDY

Engine will not turn over Engine stop lever released. Operate engine stop lever.

Incorrect oil level. Check oil level.

Obstruction under deck. Remove obstruction.

Engine smokes Excess oil level. Check oil level.

Air cleaner cartridge oil Service air cleaner.
soaked or blocked.

Engine runs then stops Fuel starvation. Fill fuel tank.

Fuel cap vent blocked. Clean fuel cap vent.

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.

Wiring fault. Check wiring.

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 tank and fill with correct fuel.

1.26

TROUBLE SHOOTING

PROBLEM POSSIBLE FAULT REMEDY

Engine vibrates excessively Mounting bolts loose. Tighten bolts

Cutterblade bolt loose. Tighten bolt

Cutterblade out of balance. Balance cutterblade

Bent crankshaft. Consult your dealer

Uneven cut Undulating ground conditions Change direction of travel

Cutterblade worn Sharpen the cutterblade

Cutterblade out of balance Balance the cutterblade

Wheels / roller damaged Inspect and replace as necessary

Discharge chute blocks Grass is wet Mow dry grass

Cut height too low Increase cut height

Grassbag full Empty grassbag

Airflow through the Clean the grassbag
grassbag is restricted

Engine speed too slow Set throttle to fast position

Mower is hard to push Cut height too low Increase cut height

Wheels / roller damaged Inspect and replace as necessary

Mower will not self propel Clutch out of adjustment Adjust clutch cable

Drive belt damaged Replace drive belt

Poor grass collection Airflow through the Clean the grassbag

grassbag is restricted

Discharge chute blocked Remove blockage

Wet grass Mow dry grass

Grassbag full Empty grassbag

Engine speed too slow Set throttle to fast position

1.27

TROUBLE SHOOTING

EC DECLARATION OF CONFORMITY

HAYTER LIMITED,
Spellbrook, Bishop’s Stortford, Herts CM23 4BU ENGLAND

declare that the lawnmower:

Models: Harrier 48 Pro
Machine Type No. CODE 486A
Category: Auto-Drive Electric Start
Type: Pedestrian Rotary
Engine manufacturer: Briggs & Stratton
Speed of rotation: 2800 rpm
Width of cutting device: 480mm
Speed of rotation of the cutting device: 2800 rpm

Complies with the provisions of Directive: 98/37/EC Essential Health & Safety Requirements Relating to the
Design & Construction of Machinery and Safety Components, as amended and the regulations transposed into
national law.

Also Directive 89/336/EEC Electromagnetic Compatibility, as amended and the regulations transposed into
national law.

Also Directive 2000/14/EC Noise emission in the environment by equipment for use outdoors, and the regula­tions transposed into national law procedure applied for the conformity assessment: ANNEX VI, procedure 1.
Notified Body: Sound Research Laboratories Ltd. Holbrook House, Little Waldingfield,
Sudbury, Suffolk, ENGLAND
Notified body identification No: 1088

Measured sound power level: 95 dB(A)
Guaranteed sound power level: 96 dB(A)

Standards Used: EN2921, EN836 and ENISO14982

Signed Date: 13.03.02

Declaration done and Technical Documentation kept at:

HAYTER LIMITED,
M.A. Wright Spellbrook, Bishop’s Stortford,
(Technical Director) Herts CM23 4BU ENGLAND

1.28

DECLARATION OF CONFORMITY

VIBRATION INFORMATION

Lawnmower vibration information. RMS acceleration measured in 3 - axes at operators contact position on
the handlebars. CODE 486A = 5 ms

-2

NO. DESCRIPTION PART NO. QTY ITEM NOTE

1 Mainframe - Casting 486015V 1
2 Plate - Location RH 480083V 1
3 Clamp - Boss Inner 480084W 2
4 Clamp - Boss Outer 480085W 2
5 Nut - Nyloc Insert ‘T’ Type 09441 4
6 Key - Woodruff 1662 1
7 Throttle Control 486031 1
8 Engine - B/S Intek edge 55 OHV 486040 1
9 Decal - Engine 486005 1
10 Knob - Handlebar 480088 2
11 Handlebar - Lower 480168W 2
12 Bolt - Handlebar 09785 2
13 Nut - Nylon Insert 09544 1
14 Washer - Plain 09472 1
15 Guide Rope 305093 1
16 Pin - Pivot 340182 2
17 Decal - Grass Blade 410064 1
18 Lever - Engine 340179 1
19 Washer - Nylon 09688 2
20 Handlebar 341029 1
21 Lever - Clutch 306094W 1
22 Screw 09687 2
23 Cable Guide 480123 1
24 Bracket - Cable Clutch 306108 1
25 Screw 09704 1
26 Cable - Clutch 480094 1
27 Grassbag - Assy 486021 1 Includes items 28, 36 & 101
28 Frame - Grassbag 486018W 1
29 Deflector - Rear 480140 1
30 Pin - Roll 03997 1
31 Spring - Deflector RH 480131 1
32 Rod - Deflector 480062 1
33 Screw - Pozi Pan Taptite 09758 2
34 Bolt - Coach 09549 2
35 Knob - HOC 480134 1
36 Grassbag - Fabric 486019 1
37 Spring - Deflector LH 480130 1
38 Plate - Location LH 480082V 1
39 Plate - Handlebar Retainer 480055 2
40 Cover - APTO 480014 1
41 Bearing - APTO 480050 1
42 Screw - Washer Hd Taptite 09575 2
43 Bush 340154 2
44 Screw - Taptite 09349 3
45 Foam Strip 480119 1
46 Lever - HOC 480128 1

1.29

PARTS LIST

NO. DESCRIPTION PART NO. QTY ITEM NOTE

47 Ratchet HOC Moulding 480147 1
48 Throwplate - Main Body 480011 1
49 Screw - Taptite 09545 4
50 Bearing - Roller Housing

219102 2

51 Roller - Rear W/A 480210 1
52 Spring Tension - Rear Axle 480133 2
53 Washer 09262 3
54 Screw - Taptite 09365 22
55 Bolt - Coach 09666 2
56 Nut 09657 1
57 Washer 09658 1
58 Rope - Stop MU42189 1
59 Handle 486016 1
60 Washer - Spring 03469 2
61 Sprocket - 17 Teeth 219051 1
62 Frame - Rear Roller W/A 480201 1 Includes item 103
63 Key - woodruff 5321 1
64 Circlip 1428 1
65 Washer 480097 4
66 Cover - Transmission 480206 1
67 Chain 480209 1
68 Rod - Connecting 480045 1
69 Plate - Securing 219037 2
70 Filler - Throwplate 480017W 1
71 Pulley - Sprocket Fixed Speed 480208 1
72 Belt - V APTO 486035 1
73 Washer 02575 1
74 Circlip 03096 1
75 Pulley - Jockey 219156 1
76 Washer - Starlock 0201086 2
77 Bracket - Idler Assy 480115 1
78 Belt Guide 480116 1
79 Pulley - Drive APTO 486034 1
80 Spring - Torsion Idler 480066 1
81 Bush 4452 1
82 Washer - M12 H.D. 09280 1
83 Washer - Spring 09273 1
84 Bolt - UNF 09121 1
85 Distance Piece - Cutterbar 4014 1
86 Cutterbar - 19” 480149 1
87 Cover - Throwplate Drive 480012 1
88 Disc - Friction 480070W 1
89 Spacer 480072 1
90 Cap - Hub 219143 2
91 Nut - UNF Nyloc 4486 2
92 Wheel 5218 2

1.30

PARTS LIST

NO. DESCRIPTION PART NO. QTY ITEM NOTE

93 Axle - Front W/A 219031 1
94 Moulding - Front axle Bearing 219036 2
95 Fin - Front Insert 480013 1
96 Decal - Hayter & Royal Warrant 410087 1
97 Nut - M8 Shouldered 480086 2
98 Cap 234051 2
99 Plug - Tube 300160 2
100 Tie - Cable 3966 4
101 Handle - Grip 480106 1
102 Brace - Support 486039W 2
103 Bracket HOC 480157W 1
104 Torsion Spring HOC 480132 1
105 Rivet - 2
106 Screw 09634 2
107 Ratchet 480156 1
108 Cable - Engine Brake 486007 1
109 Rail - Front 486008W 1
110 Screw 09358 3
111 Screw 09368 2
112 Washer 09475 6
113 Bolt - Coach 09668 4
114 Nut 09438 5
115 Washer - Nylon 4017 2
116 Screw - Washer Hd Taptite 09546 2
117 Setscrew - M6 x 55 09780 1
118

1.31

PARTS LIST

1.32

PARTS LIST

59

45

60

60

111

109

90

91

92

93

94

95

8

17

98

5

112

6

4

97

3

2

113

1

96

114

54

88

87

68

86

94

21

19

18

117

15

10

58

9

31

33

39

40

42

41

43

44

89

54

54

54

82

85

83

81

92

84

102

99

11

112

30

32

35

34

70

54

49

69

54

76

79

78

80

54

91

12

100

29

47

107

37

39

106

52

48

49

65

50

115

74

73

26

71

72

75

77

76

104

20

19

16

14

11

28

38

52

52

69

46

22

108

114

110

25

7

13

101

53

102

54

57

100

99

5

112

3

97

54

51

68

56

100

23

112

55

4

112

5

98

62

63

115

65

49

67

66

16

24

26

27

-Grassbag Assy.
Includes Items

28,36 & 101

10

36

50

49

61

65

53

64

117

90

54

54

54

54

105

103

2C486A01C

1.33

NOTES

Notes:-

1.34

Notes:-

NOTES

1.35

NOTES

Notes:-

1.36

CUSTOMER INFORMATION

Serial No:

Engine Type:-12K682-0166-E1 Engine:-Briggs & Stratton Intek Edge 55

Date of Sale:-

Your Local Dealer:-