Dennis FT 610 Manuel utilisateur

FT RANGE

FINE TURF CASSETTE MOWER

INSTRUCTION MANUAL

DENNIS, Ashbourne Road, Kirk Langley, Derby, DE6 4NJ, United Kingdom

Telephone:- 01332 824777

Fax:- 01332 824 525

E-mail:- [email protected]

www.dennisuk.com SP20001_REV_

02/1

FT Razor Razor Simplex G560 SuperSix G660/G760 Premier Contractor Bray Hand S500 Gang

Application Range 560

Ultra 560

Range G680 Range G860 Range Tools Plus Mower

Bowling Green 999 9999

Cricket Ground Maintenance: wicket 999 999

square 999 9 9 9

outﬁeld 99 9

Football Pitch 99 9

Golf Course Maintenance: Tees 999 9 9 9 9

Greens 999 999

Ornamental 999 9 9

Croquet Green 999 999 9 9

Grass Tennis Court 999 9999

Race Course Maintenance: Parade Ring 999 9 9 9 9

Ornamental 999 9 9 9 9 9

Rugby Pitch 99 9

Hockey Pitch 99

Sports Club Maintenance 999 9 9 9 9 9 9 9 99

Schools, Colleges & University Grounds 999 9 9 9 9 9 9 9 99

Cemetery Maintenance 9999

Contractors, Private Lawns & Commercial 999 9 9 9 9

Local Authority & Government Contracts 999 9 9 9 9 9 9 9 99

Ornamental Lawn 999 9 9 9 9 9

THIS INFORMATION IS INTENDED FOR GUIDANCE PURPOSES ONLY. WE RECOMMEND THAT YOU DISCUSS YOUR SPECIFIC

REQUIREMENT WITH OUR HEAD OFFICE, SALES MANAGERS OR YOUR LOCAL DENNIS DEALER.

NOTE

Product Application Matrix

FT Range SP20001_REV_2

Certiﬁcate of Conformity

Fine Turf (FT) Cylinder mowers powered by Honda GX Petrol Engine

Manufacturer:- Howardson Ltd, Howardson Works, Kirk Langley, Derby, DE6 4NJ. UK

Owner of Technical Document:- Mr I.D. Howard, Howardson Ltd, Howardson Works Kirk Langley, Derby, DE6 4NJ, UK

Notiﬁed Body:- AV Technology Ltd, AVTECH house, Arkle Avenue, Stanley Green Trading Estate, Handforth, Cheshire,

SK9 3RW, UK

I the under signed Declare that these machines:-

The reliability and quality of performance of the DENNIS FT depends upon some simple care maintenance carried out

regularly. This manual has been prepared to allow the user to carry out all such work.

It is advisable to read the instructions carefully. Proper care and attention will enable the machine to give a continuous,

satisfactory, and reliable service. Failure to carry out regular lubrication and maintenance as outlined in this manual may

render any guarantee or warranty invalid.

In the case of any difﬁculty, or if further information or advice is required, our Service Department is always at your call. In

the interests of speed and accuracy of information please quote the serial numbers of the machine and engine when

making enquiries.

For the mower, this is to be found on a plate attached to the side frame. The engine number is stamped on either the

crank case or the gear casing facing towards the front of the machine. We suggest you write the numbers on the front

page of this book.

Introduction

Serial Numbers

MACHINE SERIAL NUMBER

MAKE A NOTE OF THE SERIAL NUMBERS OF YOUR MACHINE & ENGINE AND ALWAYS

QUOTE THEM IN ANY COMMUNICATION WITH PERSONNEL AT DENNIS.

NOTE

ENGINE SERIAL NUMBER

Model Cutting Width Power (Honda) Measured Sound Power

Level

Guaranteed Sound

Power Level Serial Number

FT 430 17” (430mm) GX120 91dB Lwa 94dB Lwa See Product ID range

FT 510 20” (510mm) GX160 95dB Lwa 98dB Lwa See Product ID range

FT 610 24” (610mm) GX160 95dB Lwa 98dB Lwa See Product ID range

Tested at:- Howardson Works test site November 2009

Managing Director

Ian Howard

FT Range SP20001_REV_2

Contents

Page

Product Application Matrix.................................................................................................................................................... 2

Declaration of Conformity..................................................................................................................................................... 3

Serial Numbers..................................................................................................................................................................... 3

Introduction........................................................................................................................................................................... 3

Technical Data ...................................................................................................................................................................... 4

Machine Description ............................................................................................................................................................. 5

Important Safety Instructions................................................................................................................................................ 6

Operating Instructions ..................................................................................................................................................... 7 - 8

General Adjustments ......................................................................................................................................................9 - 11

Removing The Cassette Unit.............................................................................................................................................. 12

Routine Maintenance................................................................................................................................................... 13 - 14

General Lubrication ..................................................................................................................................................... 15 - 16

Storage............................................................................................................................................................................... 16

Guide to Replacement Parts .............................................................................................................................................. 16

Guide To Cassette Use....................................................................................................................................................... 17

Parts Listings............................................................................................................................................................... 18 - 38

Notes .................................................................................................................................................................................. 39

Technical Data

Model FT430 FT510 FT610

A - Width (mm) 675 750 840

B - Length with Grassbox (mm) 1592 1592 1592

C - Length without Grassbox (mm) 1229 1229 1229

D - Height (mm) 971 971 971

Weight (Kg) 100 110 120

Cutting Width (mm) 430 510 610

Cylinder 9 or 5 blade

Height of Cut (mm) 2 - 25

Cut Performance (9 Blade) 180 cuts/m (168 cuts/yd)

Engine Honda GX120 Honda GX160 Honda GX160

Drive System

Brake band for roller and

dog drive to disengage

cutter for transport

Final Drive Poly “V” high performance

belts under constant tension

Hand Arm Vibration (m/sec2) 2.7 2.5 2.8

Measured Sound Power Level dB(A) LWA 91 95 95

Guaranteed Sound Power Level dB(A) LWA 94 98 98

ABC

FT Range SP20001_REV_2

Machine Description

Manufactured with a 17” (43cm) 20” (51cm) or 24” (61cm) cutting width this mower is powered by a 5.5 h.p. air cooled

single cylinder four stroke petrol engine (3.5hp FT430) The rear roller is powered via a slipping brake band clutch

mechanism that allows inﬁnite speed control independent of the cutter unit. The drive to the roller is engaged by a lever

situated on the right handlebar.

In the design of the machine, special attention has been given to the importance of easy service and maintenance with

the construction based on a sectional assembly system. These are the Engine Unit, the Cassette Unit, the Rear Roller

Unit, and the Front Roller Unit, each of which can be readily removed individually from the main Frame Chassis Unit.

The interchangeable cassette system allows a variety of cassettes to be used for varying applications.

1. Cassette 9. Grassbox

2. Bottom Blade Adjuster Knob 10. Cutting Height Adjustment Knob

3. Belt Guard 11. Cassette Retaining Pin Hand Wheel

4. Throttle Lever 12. Cassette Disengage Knob

5. Operating Handle 13. Air Filter

6. Exhaust 14. Driving Clutch Lever

7. Fuel Tank 15. Deadmans Handle

8. Centrifugal Clutch Drum

FT Range SP20001_REV_2

Important Safety Instructions

In order to operate the machine safely please follow these Health and Safety guidelines.

TRAINING

READ THE INSTRUCTIONS CONTAINED IN THIS MANUAL WITH CARE. IF YOU ARE IN

ANY DOUBT PLEASE ASK YOUR EMPLOYER OR CONTACT US DIRECT AT DENNIS.

CAUTION

• Be familiar with the controls and the proper use of the equipment.

• Never allow children or people unfamiliar with these instructions to use the mower. Local regulations or insurance may

restrict the age of the operator.

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

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

property.

PREPARATION

•While mowing always wear substantial footwear and long trousers. Do not operate the mower barefoot or in open

sandals.

•

Thoroughly inspect where the equipment is to be used and remove all stones, sticks, wire, bones and other foreign objects.

PETROL IS HIGHLY FLAMMABLE AND WILL DAMAGE GRASS IF SPILT.

WARNING

A) Store fuel in containers speciﬁcally designed for this purpose.

B) Refuel out doors and do not refuel whilst smoking.

C) Add fuel before starting the engine. Never remove the cap of the fuel tank or add petrol while the engine is running or

when the engine is hot.

D) If petrol is spilled do not attempt to start the engine but move the machine away from the area of spill and avoid

creating any sources of ignition until the vapours have dissipated.

• Replace damaged or faulty silencers.

• Before using the machine always inspect the safety devices including the cut off switch and the blades for excessive

wear or damage. Replace if necessary.

OPERATION

• Do not operate the engine in a conﬁned space where dangerous CARBON MONOXIDE fumes can collect.

• Mow only in daylight or good artiﬁcial light.

• Avoid operating the machine in wet grass where feasible.

• Always be sure of your footing on slopes.

• Walk. Never run.

• Walk across the face of slopes, never up and down.

• Exercise extreme care on slopes when changing direction.

• Do not mow excessively steep slopes.

• Use extreme caution when reversing or pulling the machine towards you.

• Stop the blades if the mower has to be tilted for transportation when crossing surfaces other than grass and when

transporting the mower to and from the area to be mown.

• Never operate the mower with defective guards or shields or without the safety devices, for example without the

deﬂector plate or grassbox in place.

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

• Disengage all blades and drive clutches before starting.

• Start the engine carefully following the instructions with feet well away from the blades.

• Do not tilt the mower when starting the engine.

• Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times.

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

FT Range SP20001_REV_2

Operating Instructions

PREPARATION FOR USE

• Before commencing ensure the turf is free from stones or other obstructions which may damage the cassette unit.

• Set the height of cut to the required level (see page 9)

• Check the engine.

• Fill the fuel tank 3/4 full with unleaded petrol.

• Always check the oil levels of the machine prior to commencing. Full details are given in the ENGINE Manual, which

accompanies this book. A daily check is recommended. (Recommended grade oil is SAE 10W-40).

• Disengage the cassette unit. (see next page)

• Set the throttle control on the handle bars to the idle position.

• In the case of deadmans handle control depress the black lever onto the handlebar then start the engine as per the

manufacturers instructions.

BEFORE YOU OPERATE THIS MACHINE YOU MUST READ AND STUDY THIS MANUAL.

IF YOU ARE IN ANY DOUBT PLEASE ASK YOUR EMPLOYER OR CONTACT US DIRECT.

CAUTION

IMPORTANT INFORMATION PLEASE READ ALL THE DETAILS IN THIS SECTION AND

FAMILIARIZE YOURSELF AND ALL MACHINE OPERATORS WITH THE CONTENTS.

CAUTION

GENERAL

A centrifugal clutch is ﬁtted in the primary drive system. When the engine revs are at

tickover the clutch disengages and neither the cutter nor the rear roller controls will

function.

On increasing the revs of the engine with the throttle control the clutch engages thus

allowing cutter and roller to operate.

The drive to the cutter unit can be engaged or disengaged in one of two ways:-

A) By reducing the engine revs to tickover the centrifugal clutch will disengage. This

method will be performed when emptying the grassbox.

b) By having the dog drive disengaged. Use this method when transporting the machine.

When the centrifugal clutch is engaged the rear roller drive can be activated by the brake band lever.

TRANSPORT (Disengaging the Cassette Drive)

To ensure the safety of operator and machine we strongly recommend disengaging the

cassette drive when transporting under power between sites. Do not operate any

cassettes with dog drive disengaged except for the sorrel roller, ironing roller and slitter.

This is achieved by performing the following procedure:

Reduce engine revs to tickover. This will cause the black clutch drum to cease rotating.

2) Lift the red ball knob (attached to horizontal rod behind engine) and push towards the

machine. Locate the rod between the two nuts in the slotted catch plate.

3) Once in position the dog drive is disengaged.

To re-engage the dog clutch:

1) Reduce engine revs to tickover as above (1).

2) Lift control rod clear of the locating slot and allow it to spring back towards you.

3) Slowly increase engine revs until an audible click is heard when the dogs engage. Alternatively rotate the black clutch

drum about half a turn by hand and the same click will be heard. Do not rev the engine until the rod has moved right

across and fully engaged.

TO ASSIST THE SLOWING OF THE BLACK CENTRIFUGAL CLUTCH DRUM APPLY THE

BRAKE BAND LEVER.

NOTE

FT Range SP20001_REV_2

STARTING THE ENGINE

Once the preparatory steps have been completed as outlined on page 7 the engine may be started. (See manufacturer

operating manual for full details).

1) Switch on the fuel tap.

2) Switch the handlebar cut off switch to ON, or depress deadmans handle (Item 1)

3) Set the throttle control to a half open position.

3) Shift the choke lever to the appropriate position (Kubota engine set to START : Honda engine set to the CLOSE

position). The choke is not required if the engine is warm or the air temperature high.

4) Grasp the recoil start handle until resistance is felt, then pull it with force.

5) Do not allow the starter grip to snap back against the engine. Return it gently to prevent damage to the starter.

6) Once the engine is started gradually ‘open’ the choke lever (move the lever towards the RUNNING, or OPEN

position). Warm-up running of 3-5 minutes is recommended.

STOPPING THE ENGINE

1) Set the throttle control to the CLOSED position.

2) Switch the handlebar cut off to OFF or release deadmans handle.

3) Close the fuel tap.

TO COMMENCE MOWING

With the starting preparations completed and all of the adjustments from the ‘General

Adjustments’ section made, the machine can be put into motion.

Firstly ensure the dog clutch is engaged. Open the throttle control on the left handlebar

which will engage the inertia clutch and spin the cassette reel. The engine speed

controls the rotational velocity of the cassette. Set the throttle to an approximately half

open position.

To engage the rear roller drive, gently raise the driving clutch lever on the right handle

bar (Item 2). The amount of depression on the lever dictates the speed of travel giving

the operator total control over the speed and handling of the mower.

When the handle is released the machine will stop. To stop the unit head rotating, reduce the throttle to tick over and this

will disengage the inertia clutch.

Operating Instructions

FT Range SP20001_REV_2

As an indication coins measure the following:-

- 1p 1.58mm (0.063” ) - 2p 1.80mm (0.071” ) - 5p 1.73mm (0.067” )

- 10p 1.84mm (0.072” ) - 50p 1.84mm (0.072” ) - £1.00 3.14mm (0.124” )

Remember height of cut is effected by moisture of turf , weight of machine and the

thatch density. Different makes of machine cut at different heights when set to the

same position with the setting bar. We suggest you set it to a couple of mm above your

planned height and then come down in height by trial.

If on setting the height of operation you ﬁnd it needs altering once on the green simply

click the adjusters up or down the same on each side until the desired height of

operation is achieved.

Always check height of cut/operation with the setting bar provided. Check in two

positions i.e. one at either end of the cassette. Failure to do this could result in an

uneven cut.

General Adjustments

SETTING FOR HEIGHT OF CUT

Always stop the engine before adjusting the height of cut. Failure

to do this may result in severe injury.

The length of grass after cutting, or depth of scariﬁcation /

dethatching / brushing, depends on the setting of the front roller in

relation to the main frame of the machine.

The Click system allows easy adjustment of the front roller posi-

tion each click representing a change of 0.5mm (0.020”). The

roller is set to be equal on leaving the factory so when the arrows

point forward on both decals the roller is level.

Check it is level using the setting bar between the front and rear roller with the underside of the screw ledging on the

bottom blade.

Either a ruler or pile of coins can be used to set the setting bar to the correct position. You are measuring the distance

between the bar and the underside of the button head screw (‘XX’ in the Image below).

DO NOT ATTEMPT TO USE THE DETHATCHER CASSETTE OR BRUSH CASSETTE ON

TOO LOW A SETTING AS THIS WILL DAMAGE THE BLADES AND BRUSH. DO NOT

ATTEMPT TO SCARIFY ON A LOW SETTING WHEN GROUND CONDITIONS ARE DRY AS

THIS MAY CAUSE THE CENTRIFUGAL CLUTCH TO SLIP.

NOTE

410

FT Range SP20001_REV_2

The FT cylinder is ﬁxed in

position in self-aligning

bearings with aluminium

housings spigotted to the

side frames. The bottom

blade assembly is

adjusted up and down by

using a knurled knob

system.

To operate this system

ﬁrstly slacken the two locknuts

on the adjuster stems – The Lock Nut (A) is directly on top of the Knurled Knobs (B). Use a 9/16 AF spanner. Each

knurled knob has a decal to indicate ON or OFF cut. ON cut brings the bottom blade closer to the cylinder. OFF cut

moves it away.

A = Locknut (9/16” Spanner)

B = Lubricate occasionally with Oil

C = Circlip

Rotate the knurled knobs to gain light contact between the shear blade and cylinder on

both sides of the cassette. The adjustment should be made so that the cylinder will spin

with a light audible contact with the bottom blade. Check the setting using thin paper

along the length of the cylinder adjusting until it cuts along its whole length.

When a satisfactory set is achieved tighten the lock nuts whilst holding the knurled knob

ﬁrmly (to stop it turning), recheck adjustment.

Do not set the cylinder hard on, as this will cause excessive wear of the cylinder, bottom

blade the drive system and increase fuel consumption.

General Adjustments

CUTTER SETTING ADJUSTMENT

For cutter cylinder cassettes (5 or 9 blade units).

For a full view of the setting operation we suggest you remove the cassette from the machine and place on the back ﬂat

edge of the frame at a comfortable height. It is now possible to make adjustments in the machine without cassette

removal should you prefer.

CYLINDERS AND BOTTOM BLADES ARE SHARP, WEAR GLOVES TO PROTECT YOUR

HANDS AND FINGERS.

WARNING

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