Hayter Mowers Hawk 312A, Hawk 308A User Manual

Hawk

CODES

308A 312A

(Auto Drive) (Push)

OWNER'S HANDBOOK

(English Version)
FROM SERIAL NO: 308A001001, 312A001001 HANDBOOK: 308068 (REV .1.)
ISSUE 21.04.04

MAIN FEATURES /SPECIFICATIONS

Main Features

1 Handlebar.
2 Ground Drive Clutch Lever (312 Only).
3 Grassbag Assembly.
4 Rear Deflector.
5 Serial Number Decal.
6 Oil Filler Cap and Dipstick.
7 Height of Cut Adjuster.
8 Spark Plug Lead.
9 Primer Bulb.
10 Fuel Filler Cap.
11 Handlebar Securing Knob.
12 Rope Guide.
13 Engine Start-Grip.
14 Engine Stop lever.
15 Air Cleaner.
16 Height of Cut Indicator.

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1D30800B

Specifications

Code 308A 312A
Engine Briggs & Stratton Sprint 40 Briggs & Stratton Sprint 40
Engine type 10D902-0155-B1 10D982-0164-B1
Engine/Cutterbar speed 2900 rpm 2900 rpm
Fuel type Unleaded petrol Unleaded petrol
Fuel capacity 1.0 litres 1.0 litres
Oil type SAE 30 engine oil SAE 30 engine oil
Oil sump capacity 0.6 litres 0.6 litres
Cutting width 410mm 410mm
Cutting height 12 - 65mm 12 - 65mm
Overall dimensions 1,340 x 451 x 1,041mm 1,340 x 451 x 1,041mm
Dry Weight 24.5 Kg 28.3 Kg

1.2

1ST Year (12 months)

1ST Year (12 months)

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

Service Dealer

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.

2nd Year (24 months)

Owner s Name:

Serial Number:

Date:

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

CONTENTS

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 - 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

1.15 - Forwar d Travel

1.15 - Turning

1.15 - Stopping

1.16 - Slopes

1.16 - Height of Cut

1.16 - Before Mowing

1.16 - Grassbag

1.17 - Without Grass Collection

1.17 - Heavy Growth

1.17 - Friction Device

1.17 - Non-Grassed Areas

1.18 - 1.19 - Lawn Care Calendar - Guide Only

1.18 - Lawn Stripes

1.22 - Oil Service

1.22 - Air Cleaner Service

1.23 - Spark Plug Service

1.23 - Keeping Engine Clean

1.23 - Grassbag

1.24 - Deck Housing

1.24 - Securing Nuts and Bolts

1.24 - Clutch Cable Adjustment

1.25 - Lubrication

1.25 - Cutterblade Removal

1.26 - Cutterblade Assembly

1.26 - Cutterblade Sharpening

1.27 - Storage

1.28 - 1.29 Trouble Shooting

1.30 Declaration of Conformity

1.31 - 1.33 Parts List

1.34 Parts list Diagram

1.35 Customer Info/Notes

1.20 Maintenance Schedule

1.21 - 1.27 Mower Maintenance

1.21 - Engine

1.5

INTRODUCTION

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.

HA YTER LIMITEDreserve the right to amend product specifications without prior notification.

1.6

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 three years from the
date of purchase. The manufacturer of major proprietry components ie. engines, gearbox /
transaxle (where applicable) furnish their own warranty and services are provided through their
authorised network. To qualify for the full benefit of the warranty, the warranty registration card
must be returned within 14 days of purchase. 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.
To qualify for the extended warranty (second and third year) of the three year limited warranty

the machine must have annual services carried out by an Authorised Hayter Service Dealer.
These chargeable services should be carried out within 12 and 24 months of the date of purchase.

Excluded from the extended warranty period are those items which are subject to normal wear
and tear e.g. tyres, wheels, cutterblades, belts, cables, grassbags, sweeper/brushes, batteries and
other consumable wearing parts.

All consumer machines which are fitted with a genuine Hayter friction disc 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, 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 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.

A warranty period of 90 days applies to machines used for commercial purposes.

To make a warranty claim, return the unit to a Hayter authorised dealer along with proof of
purchase stating the machine serial number and date of purchase. The service receipt(s) or this
Owners Handbook with the 1st/2nd year service boxes fully completed, must be produced as
proof of entitlement to the extended warranty period. 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 contact:- Freephone 0800 616298.

Issue: 05.09.03

1.7

SAFETY PRECAUTIONS

Safety Alert Symbol

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

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

Training

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.

1.8

Preparation

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.

PRECAUTIONSSAFETY

Preparation

- 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

Operation

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

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.

1.10

- Before refuelling.

Maintenance & Storage

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.

SAFETY PRECAUTIONS

STOP

305113

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Maintenance & Storage

Allow the engine to cool before storing in any enclosure. T o 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.

Safety Symbols

Safety Alert - Be aware to the
possibility of injury.

Carefully read the Owners
Handbook before using the
machine.

Engine Stop

(Symbol)

Danger of severing toes or fin­gers in cutting mechanism.

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

Decal Symbols

Height of Cut Adjustment

(Symbol)

Danger of being hit by thrown
objects.

Keep bystanders at a safe dis­tance from the mower.

Height of Cut Indicator

(Symbol)

1.11

ASSEMBLING THE MOWER

Delivery Checklist

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.

Handlebar

Unscrew the handlebar securing knobs sufficiently to allow the handle­bar to pivot. Hold the engine stop lever in towards the handlebar and
unfold the handlebar to the operating position, before releasing. Tighten
both handlebar knobs to secure in position.

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

1.12

Grassbag Attachment

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

O

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CS130

BEFORE

Prevent Engine Damage

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.

Oil Type

Always use high quality detergent oil classified SAE 30 oil. Never use
additives with recommended oil.
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’.

MOWERTHESTARTING

Check Oil Level

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.

Fuel Type

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

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CS117

OPERATING THE MOWER

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.

Starting - Step 1

Operate the primer bulb: Note: Push on the primer bulb 5 times at
two second intervals to provide the extra fuel to start the engine after
assembling the mower for the first time.

In normal use push on the primer bulb 3 times at 2 second intervals to
provide the extra fuel required to start a cold engine. Operation of the
primer bulb is usually unnecessary when starting a warm engine.

Step 2

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.

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

1.14

Forward Travel

STOP

(Autodrive Only)

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.

Turning

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.

Stopping

MOWERTHEOPERATING

Release the ground drive clutch lever and 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.

1.15

305113

OPERATING THE MOWER

Slopes

To prevent engine damage do not use the mower on slopes greater
than 20 degrees.

Height of Cut

Hold the trigger against the handle and raise or lower the mower using
the handle to achieve the desired height of cut. Release the trigger to
secure the mower at the required position.

There are seven height of cut positions. The setting is indicated by the
position of the connecting rod relative to the height of cut indicator.

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

Before Mowing

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 forhidden 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.

Grassbag

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.

1.16

CS125

2

4

6

305113

STOP

Without Grass Collection

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

Heavy Growth

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.

MOWERTHEOPERATING

Friction Device

The cutterblade is driven by the engine via a friction device to help
prevent damage occurring to the cutting mechanism when a hidden
obstruction or overload is encountered. When the obstruction or over­load situation is removed the friction device will automatically reset.

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”.

Non-Grassed Areas

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

LAWN CARE CALENDAR

To be used as a guide only.

January

There is very little work to do this month apart from brushing away
leaves. Keep off the grass if frozen or waterlogged.

February

Rake the grass thoroughly. Spike the lawn to aerate and stimulate soil
organisms and root growth and apply lawn sand if necessary.

March

The yearly lawn work programme really starts this month. As soon as
the ground conditions are suitable, the first cut can be made. The first
cut should merely “top” the grass as close cutting at this stage could
result in severe yellowing or browning. Two cuts are generally suffi­cient this month.

April

Mow often enough to stop grass growing away. Dig out patches of
coarse grass or resistant weed. Re-seed bare patches.

1.18

May

Keep mowing increasing the frequency as required. Treat with selec­tive weed killers or combined weed/feed preparations if you did not
feed the lawn in April.

June

Summer mowing should now be under way. It should be necessary to
mow the lawn twice a week. Raking before mowing is important this
month as the combined action keeps runners of clover under control.
Water the grass if necessary, and remember to soak thoroughly.

July

Treat the grass with the second application of fertiliser or weed
killer/fertiliser. Water when necessary and rake occasionally. As a gen­eral rule the grass clippings should be removed each time you mow. If
weather conditions are dry and hot and the grass is weed free, leave the
clippings on the lawn to help maintain ground moisture.

LAWN CARE

1

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1CG480V05A

August

Keep mowing regularly and watering as necessary. Fill any cracks
caused by drought with a mixture of sharp sand and soil. In dry weath­er conditions leave the grass longer to help retain ground moisture.

September

Raise the height of cut to allow the grass to thicken and protect the
roots from the winter frost and snow.

October

Rake out the thatch from the turf and spike the lawn to assist in
drainage. Brush in peat and sharp sand.

November

Use a stiff broom to disperse worm casts before mowing. Keep turf
free from leaves.

December

CALENDAR

Apart from brushing away leaves, December is a slack end of a busy
year. Keep off the lawn if it is very wet or frozen.

Lawn Stripes

The way to achieve a neat striped effect is for the lawn being cut in
parallel stripes, alternate stripes being mown in opposite directions. A
much more important routine is to cut at right angles to the line of the
previous mowing. If the work has been carried in a north-south line,
then the next cutting should be in an east-west direction. The cross­cutting keeps down the coarse weed grasses.

T o pr event grass damage do not remove mor e than one third of the
grass height in one cut.

1.19

MAINTENANCE SCHEDULE

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.

First 5Hrs

After the very first five hours change the engine oil

Daily

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.

1.20

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

Check the condition of guards and safety devices.

Check condition of cutterblade.

25Hrs or Every Season

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.

MOWER

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1CG308/312A02B

MAINTENANCE

50Hrs or Every Season

Change the engine oil.

100Hrs or Every Season

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.

Engine

1. Engine

2. Primer Bulb

3. Air Cleaner

4. Fuel filler Cap

5. Start Grip

6. Oil filler Cap/ Dipstick

7. Exhaust Guard

8. Spark plug

1.21

1

MOWER

1

2

3

4

MAINTENANCE

Oil Service

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’)

1.22

Air Cleaner Service

To service the air cleaner, remove screw (1) and remove cover (2).
Carefully remove foam element (3) and wash in a solution of liquid
detergent and water. Allow to air dry thoroughly before fitting or wrap
in a cloth and squeeze dry. If very dirty, replace.

Saturate with clean engine oil and squeeze out excess.

After servicing, re-assemble the air cleaner and fasten securely.

1

MOWER MAINTENANCE

Spark Plug Service

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.

Keeping Engine Clean

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.

Grassbag

1.23

32-38mm

1

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1CG480V36B

MOWER

MAINTENANCE

Deck Housing

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

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

Securing Nuts & Bolts

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

Clutch Cable Adjustment

Auto Drive Model Only.

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.

1.24

CS081

MOWER MAINTENANCE

Lubrication

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.

Cutterblade Removal

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 Right hand side and ensure that the
exhaust 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.

1.25

MOWER

30°-45°

CS094

MAINTENANCE

Cutterblade Assembly

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

Cutterblade Sharpening

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.

1.26

MOWER MAINTENANCE

Storage

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.

1.27

TROUBLE SHOOTING

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.

Incorrect/contaminated fuel. Drain fuel tank and fill with

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.

correct fuel.

1.28

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

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
(Autodrive Only)

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

1.29

CONFORMITYOFDECLARATION

EC DECLARATION OFCONFORMITY

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

declare that the lawnmowers:

Models: Hawk Hawk
Machine Type No. CODE 308A CODE 312A
Category: Push Auto Drive
Type: Pedestrian Rotary Pedestrian Rotary
Engine - Manufacturer: Briggs & Stratton Briggs & Stratton
Speed of rotation: 2900 rpm 2900 rpm
Width of cutting device: 410mm 410mm
Speed of rotation of the cutting device: 2900 rpm 2900 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: 94 dB(A) 94 dB(A)
Guaranteed sound power level: 96 dB(A) 96 dB(A)

1.30

Standards Used: EN292, EN836 and ENISO14982

Signed Date: 15.4.2004

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

Declaration done and Technical Documentation kept at:
HAYTER LIMITED,

VIBRATIONINFORMATION

Lawnmower vibration information. RMS acceleration measured in 3 - axes at operators contact position on the
handlebars. CODE 308A = 7.8 ms

-2.

. CODE 312A = 7.8 ms

-2.

.

PARTS LIST

QTY.

ITEM NO.

1 Deck 305101V 1 1
2 Key 1662 1 1
3 Engine - Compliance 312004 0 1

4 Bracket - Scraper 306120 0 1
5 Pulley 306123 0 1
6 Screw - Pan. Pozi Taptite M6 x 16 09596 6 6
7 Height Adjuster Handle 305112 1 1
8 Decal - Engine 6298 1 1
9 Screw - UNC Taptite 3/8" x 1.1/4" 09349 3 3
10 Decal - Height of Cut 305113 1 1
11 Decal - Grass Blade 410064 1 1
12 Decal - Hayter / Royal Warrant 410087 1 1
13 Decal - Serial No. - 1 1
14 Spring 301031 0 1
15 Trigger 300066 1 1
16 Trigger Spring 300067 1 1
17 Axle Bolt 308021 1 1
18 Compensating Spring 300070 1 1
19 Washer - M6 Plain 09472 6 7
20 Pillar 300137 1 1
21 Nut - M6 Nylon Ins 'T' Type 09544 2 2
22 Rear Roller 201007 2 0

23 Throwplate 300124 1 1
24 Axle Bush 305108 2 2
25 Belt - V 306050 0 1
26 Driven Pulley 306102 0 1
27 Screw - No 10 x 3/4" 09706 0 4
28 Ferrule 305115 2 2
29 Washer - 3/8" Plain (Axle Spacers) 09271 1 1 As required
30 Nut - 3/8" UNF Nylon Ins. 'T' Type 09216 1 1
31 Nut - M4 Nyloc Ins ‘T’ Type 09657 0 1
32 Axle Support 305130 1 1
33 Compensating Pulley 301020 0 1
34 Compensating Plate 301050 0 1
35 Grip-Fix 02385 2 3
36 Grip-Fix 04020 0 2

DESCRIPTION

Engine - Compliance 308054 1 0

Rear Roller 239065 0 1

PART NO.

308A 312A

ITEM NOTE

1.31

LISTPARTS

QTY.

ITEM NO.

37 Bearing Half 301030 0 1
38 Jockey Arm Assembly 301015 0 1
39 Pulley - Tensioner 239021 0 1
40 Screw - 6 x 16 Pozidrive 09634 2 2
41 Adapter MU42734 1 1
42 Cutterbar 302026 1 1
43 Washer MU17x137 1 1
44 Plate - Securing 219037 3 3
45 Washer - M4 09658 1 1
46 Bolt - Hex Hd 3/8" x 1.1/2" UNF 09118 1 1
47 Rod - Connecting 305109 1 1
48 Screw - Hex W/Hd M6 x 12 09546 4 5
49 Hub Cap 219143 2 2
50 Nut - Wheel 1/2" Nyloc 4486 2 2
51 Wheel - 6" 302016 2 2 inc. item 92
52 Axle - Front Assembly 300111 1 1
53 Rear Roller Frame 306115W 0 1

54 Roll Pin 03997 0 1
55 Clutch Lever 306094W 0 1
56 Handlebar - Upper 305091W 1 1
57 Lever - Engine Stop 340179 1 1
58 Pivot Pin 340182 2 2
59 Washer - Nylon 09688 6 2
60 Screw - 6mm x 20 09687 2 3
61 Drive Fastener 300144 2 2
62 Cable - Clutch 306107 0 1
63 Bracket - Clutch Cable 306108 0 1
64 Rope Guide 305127 1 1
65 Cable - Engine Break 312002 0 1
66 Screw - M5x35 09358 ? ?
67 Screw - M4x35 09704 0 1
68 Cable Tie 3966 3 3
69 Rope Guide 305093 1 1
70 Tube Plug 300160 2 2
71 Bolt - Saddle Hd M8 x 45 226024 2 2
72 Knob 226013 2 2
73 Nut - Cap M8 234051 2 2
74 Nut - Nylon Ins. 'T' Type M8 09441 2 2
75 Handlebar - Lower 300062 2 2
76 Deflector 305102 1 1

DESCRIPTION

Rear Roller Frame 308050W 1 0

PART NO.

308A 312A

ITEM NOTE

1.32

PARTS

ITEM NO.

77 Decal - Caution 219189 1 1
78 Screw - Hex W/Hd M6 x 20 09575 3 3
79 Spring - Deflector R/H 305111 1 1
80 Rod - Deflector 305103 1 1
81 Spring - Deflector L/H 305110 1 1
82 Grassbag 305104 1 1
83 Frame - Grassbag 305105W 1 1
84 Screw - Hex W/Hd M6 x 16 09365 2 2
85 Sealing Strip 305119 1 1
86 Grassbag - Complete Assembly 305118 1 1
87 Bolt - Coach M8x40 09379 2 2

DESCRIPTION

PART NO.

QTY.

308A 312A

LIST

ITEM NOTE

1.33

LISTPARTS

59

57

69

72

70

64

75

73

74

3

65

11

2

1

7

12

49

50

51

24

44

52

48

9

10

17
23

41

42

47

43

35

24

44

48

51

78

79

8

6

16

15

20

19

6

19

60

46

36

50

68

73

74

68

76

77

6

78

85

37

19

6

19

44

40

21

35

25

54

49

5

48

4

38

14

71

75

28

13

80

22

58

19

21

68

70

87

18

78

34

35

33

26

39

36

2D308A/312A/01A

60

60

66

61

67

45

72

81

53

27

56
59

61

63

31

83

29

30

32

84

55

58

62

86
82

1.34

CUSTOMER INFORMATION /NOTES

Serial No:

Engine Type:-

Engine Type:- 10D982-0164-B1 (312A) Engine:- Briggs & Stratton Sprint 40

Date of Sale:-

Your Local Dealer:-

Notes:-

10D902-0155-B1 (308A)

Engine:-

Briggs & Stratton Sprint 40

1.36