Spearhead Multicut 300 Assembly instructions

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Website: www.spearheadmachinery.com
Spearhead Machinery
Operator Instruction Manual For
3.0m cut width, 540 or 1000 PTO input

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IMPORTANT
Verification Of Warranty Registration
Dealer Warranty Information & Registration Verification
It is imperative that the selling dealer registers this machine with Spearhead before delivery to the end user.
Failure to do so may affect the validity of the machine warranty.
To register machines go to the Spearhead Machinery Limited web site at:
https://my.spearheadmachinery.com/warranty/machine-registration/
Should you experience any problems registering a machine in this manner please contact the Spearhead
Service Department on 01789 491860.
Confirm to the customer that the machine has been registered in the section below.
Registration Verification
Model Type:
Multicut
Model Number:
99___________
Serial Numbers:
Machine:
S__________
Cutting Implement:
S__________
Other:
Name Of Owner:
Name Of Installing Dealer:
Dealer Address:
Dealer Signature:
Date Of Delivery / Installation:
Date Of Warranty Registration:
IMPORTANT
At the point of transfer of ownership record the above information. Note the serial number of your machine and
always quote it in any communication with us or your dealer. (The serial number plate is located on the machine
mainframe.) This is particularly important when ordering spares. Remember to include all numbers and letters.
The information given throughout this manual is correct at the time of publication. However, in the course of
constant development of Spearhead machines, changes in specification are inevitable. Should you find the
information given in this book to be at variance with the machine in your possession, you are advised to contact
the Spearhead Service department where up-to-date information will be provided.
The manual can contain standard and optional features and is not to be used as a machine specification.
The machine has been tested and is considered safe if carefully used. Ensure your operator is properly trained
in its use and maintenance.

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Multicut 300 Rotary Mower
This manual covers the Multicut 300 mounted rotary mower which has a 3.0m cut width.
This mounted machine can be specified with various specifications of blade carriers and driveline options to
suit the end users specific requirements.
These machines are fitted with 1000 rpm as standard (540 rpm is optional) and are available with various
input shaft options.
It is essential that the safety guards and chains are always fitted during operation and that the machine is
operated in line with the procedures and practices detailed in this manual.
IMPORTANT
This operator’s manual should be regarded as part of the machine. Suppliers of both new and second-hand
machines are advised to retain documentary evidence that this manual was provided with the machine.
This machine is designed solely for ground vegetation control and must not be used for any other purpose.
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 by the manufacturer, also constitute
essential elements of the intended use.
This machine should be operated, serviced, and repaired only by persons who are familiar with its
characteristics and who are acquainted with the relevant safety procedures.
Accident prevention regulations, all other generally recognised regulations on safety and occupational
medicine, and all road traffic regulations must always be observed.
Any arbitrary modifications carried out to this machine may relieve the manufacturer of liability for any
resulting damage or injury.
It is potentially hazardous to fit or use any parts other than genuine Spearhead parts.
The company disclaims all liability for the consequences of such use which, in addition, voids the machine
warranty.

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Contents List
1Machine Description...............................................................................................................................8
1.1 Intended Usage.........................................................................................................................8
1.1.1 Allowed Uses...............................................................................................................8
1.1.2 Improper Uses.............................................................................................................8
1.2 General Arrangement ...............................................................................................................9
1.2.1 Multicut 300 ...............................................................................................................10
1.3 Machine Identification .............................................................................................................11
1.4 Rotation Definitions & Conventions........................................................................................12
1.5 Machine Specification.............................................................................................................13
1.5.1 Standard Specification...............................................................................................13
1.5.2 Machine Options........................................................................................................15
2Safety....................................................................................................................................................18
2.1 Level Of Danger......................................................................................................................18
2.2 Terminology.............................................................................................................................18
2.3 Safe Use..................................................................................................................................19
2.3.1 Operators Manual......................................................................................................19
2.3.2 Personnel Preparation...............................................................................................19
2.3.3 Tractor and Machine Preparation For Work .............................................................19
2.3.4 Work Site Preparation...............................................................................................22
2.3.5 Machine At Work & Observation...............................................................................22
2.3.6 Transporting The Machine........................................................................................24
2.3.7 Machine Storage .......................................................................................................25
2.4 Safe Maintenance...................................................................................................................26
2.5 Safety & Operational Decals...................................................................................................28
2.5.1 Definitions..................................................................................................................28
2.5.2 Placement..................................................................................................................30
2.5.3 Replacement .............................................................................................................30
2.6 Guards.....................................................................................................................................30
2.6.1 Mandatory Guards.....................................................................................................31
2.7 Sound......................................................................................................................................31
2.8 Personal Protective Equipment ..............................................................................................31
2.9 The Machine & The Environment...........................................................................................32
2.9.1 Disposal.....................................................................................................................32
2.10 Proposition 65 .........................................................................................................................33
3Machine Preparation.............................................................................................................................34
3.1 Lifting The Machine.................................................................................................................34
3.2 Post-delivery/First Use Inspection..........................................................................................34
3.2.1 Tractor Inspection......................................................................................................34
3.2.2 Machine Adjustment..................................................................................................34
3.3 PTO Shaft................................................................................................................................35
3.3.1 PTO Setup & Adjustment (first use)..........................................................................35
3.3.2 Bottoming Out Test....................................................................................................36
3.3.3 Modifying & Shortening The Input PTO Shaft...........................................................36
3.3.4 Fitting The PTO Shaft................................................................................................38
4Usage Instruction..................................................................................................................................40
4.1 Operator Requirements ..........................................................................................................40
4.2 Tractor Requirements.............................................................................................................41
4.3 Hitching & Unhitching The Machine........................................................................................42
4.4 PTO Shaft................................................................................................................................44
4.4.1 Fitting & Removal Of The Input PTO Shaft...............................................................44
4.4.2 PTO Shaft Specifications ..........................................................................................46
4.5 Setting Up The Machine.........................................................................................................47
4.5.1 Front To Rear............................................................................................................47
4.6 Setting Cutting Height.............................................................................................................49
4.6.1 Multicut 300 ...............................................................................................................49
4.7 Work Site Assessment............................................................................................................52
4.7.1 Foreign Debris Hazards ............................................................................................52
4.7.2 Stopping The Machine In An Emergency.................................................................53
4.7.3 Bystanders.................................................................................................................53
4.7.4 Weather.....................................................................................................................53

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4.7.5 Fire.............................................................................................................................54
4.8 Safe Driving Practices.............................................................................................................54
4.9 Using The Machine.................................................................................................................56
4.9.1 Engaging The Power Take-off (PTO).......................................................................56
4.9.2 Disengaging the Power Take-off (PTO)....................................................................56
4.9.3 Forward & Power Take-off Speed.............................................................................57
4.9.4 Cornering...................................................................................................................58
4.9.5 Crossing Ditches & Steep Inclines............................................................................58
4.9.6 Un-level Ground ........................................................................................................59
4.10 Road Transporting The Machine............................................................................................59
4.11 Transporting The Machine On A Trailer.................................................................................60
5Maintenance .........................................................................................................................................62
5.1 Periodic Maintenance..............................................................................................................62
5.2 Lubrication & Greasing............................................................................................................62
5.2.1 Gearboxes.................................................................................................................62
5.2.2 PTO Shaft..................................................................................................................65
5.2.3 General Machine Greasing Point Locations.............................................................67
5.2.4 Greasing Schedule....................................................................................................68
5.3 PTO Shaft................................................................................................................................68
5.3.1 Size Adjustment & Fitting To The Tractor.................................................................68
5.3.2 Greasing....................................................................................................................68
5.3.3 Input PTO shaft - Bearing Ring Replacement..........................................................69
5.4 Blade Carriers, Blades & Anti-Scalp Dishes...........................................................................71
5.4.1 Blade Carrier Options................................................................................................71
5.4.2 Blade Inspection........................................................................................................71
5.4.3 Blade Sharpening & Straightening............................................................................73
5.4.4 Blade Removal & Replacement................................................................................73
5.4.5 Blade Bolt Inspection.................................................................................................74
5.4.6 Anti-scalp Dish Inspection (if fitted)...........................................................................75
5.4.7 Anti-scalp Dish, Blade & Blade Carrier Removal & Replacement............................77
5.5 Wheels, Hubs & Tyres............................................................................................................81
5.5.1 Tyre Pressures..........................................................................................................82
5.5.2 Hub Greasing ............................................................................................................82
5.6 Other Key Components..........................................................................................................83
5.6.1 Pins & Bushes...........................................................................................................83
5.6.2 Skids..........................................................................................................................83
5.7 Torque Settings.......................................................................................................................84
5.7.1 Nuts & Bolts...............................................................................................................84
5.7.2 Other Items................................................................................................................84
5.8 Machine Inspection Record....................................................................................................86
5.9 Machine Storage.....................................................................................................................88
5.9.1 Preparing The Machine For Storage.........................................................................88
5.9.2 Returning The Machine Back To Work.....................................................................89
6Troubleshooting....................................................................................................................................90
7Spare Parts...........................................................................................................................................92
7.1 How To Obtain The Correct Spare Part Numbers.................................................................92
7.2 Spare Parts Ordering..............................................................................................................93
7.3 Dealer Network .......................................................................................................................93

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1 Machine Description
1.1 Intended Usage
1.1.1 Allowed Uses
The Multicut 300 rotary mower is developed for farmers or large-scale contractors and are popular with
aviation authorities. They are versatile machines that can be used for cutting set-aside, stubble and pasture.
The Multicut 300 rotary mower is designed for use on level, undulating or inclined ground and for a duty
cycle of 1000 hours per annum. They will cut vegetation up to 100mm/4” thickness.
They can be mounted to agricultural tractors with a minimum of 50hp.
1.1.2 Improper Uses
DANGER! Spearhead declines any and all liability for damages caused by the machine to persons,
animals or property, resulting from use in any other way than described in this manual, or due to
damage caused by negligence or by not observing the instructions contained in this manual.
The machine, due to its typical construction, may also be suitable for uses other than from those foreseen by
the manufacturer. For this reason Spearhead has selected, as non-exhaustive examples, a series of
improper uses that can be reasonably foreseen, which are:
•Using the machine for amenity mowing purposes.
The uses listed above and those not specifically indicated in this manual, including reasonably foreseeable
improper uses, are definitively prohibited.
Figure 1.1 Spearhead Multicut 300

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1.2 General Arrangement
The layout and naming convention used throughout this manual for each of the machines are shown in the table
below. The numbering and positioning of the relevant item can be found for the particular machine in Section
1.2.1.
Item No.
Description
1
Deck
2
Wheel Arm & Yoke Assembly
3
Splitter Gearbox
4
Rotor Gearbox
5
Flexible Coupling*
6
PTO (Power Take-off) With Overrun
7
Height Adjuster Pin
8
Driveline Guard
9
Headstock
10
Wire Rope
11
Blade
12
Anti-scalp Dish*
13
Skid
14
Chain Guard
15
Guide Wheels
Table 1.1 –Multicut 300 Machine Components
* Multicut 300 machines can be specified in a variety of specifications when purchased brand new. Figure 1.2
shows an example Multicut 300 specification. It is important to state the actual supplied machine may vary to the
layout and specification as shown in Figure 1.2.
A full list of Multicut 300 specification options can be found in Section 1.5.2.

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1.2.1 Multicut 300
Figure 1.2 –Multicut 300 General Arrangement

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1.3 Machine Identification
Each machine is equipped with a serial plate; see Figure 1.3 that includes the following data in this order:
1. UKCA Conformity Marking.
2. Machine Whole Goods Code (WGC).
3. Serial number of the machine.
4. Mass in kg.
5. Production Year (year of construction).
6. Design conformity standard.
7. Machine Product Group Code.
8. EU Authorised Representative QR scan code.
9. Manufacturer marking with name and address.
10. EAC Eurasian/Russian Conformity Marking.
11. EC European Conformity Marking.
Figure 1.3 –Serial Plate
Data on the Spearhead manufacturer’s plate should always be referred to when requesting assistance and/or
requiring replacement spare parts.
This data can identify the machine and its characteristics and specification for its particular time of manufacture,
certifying that it responds to current regulations. For this reason the plate should never therefore be removed nor
be used for other purposes; if the machine is dismantled, it should be destroyed to prevent any form of abuse.
By utilising a smart phone and scanning the Authorised Representative QR scan code found on the right-hand
side of the serial plate (ref 8, Figure 1.3) using a suitable QR scanning App, you can find details for Spearhead
Machinery authorised representatives for its various territories.
The serial plate is located on the front channel of the machine, underneath the headstock; see Figure 1.4.
Figure 1.4 –Serial Plate Location

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1.4 Rotation Definitions & Conventions
This instruction manual refers to relative rotational directions. The terms clockwise and anti-clockwise are
defined by looking down at the machine from above, with the tractor being at the front; see Figure 1.5. To
eliminate confusion the following definitions will be used throughout this operator’s manual.
In order to create a consistent and quality cut and through-flow of material through and out of the machine, the
machine has anti-clockwise and clockwise rotating rotors which are in turn fitted with left-hand (LH) and right-
hand (RH) blades. The rotation direction of each of the rotors is stated in Figure 1.5.
Multicut 300
Front Mount
Rear Mount
Figure 1.5 –Blade Rotations
Additionally, other references to ‘clockwise’ and ‘anti-clockwise’ actions by the operator conform to international
right-hand thread conventions for ‘screw down’ and ‘un-screw’ respectively.
This convention also extends to the definition of PTO drive rotation from the prime mover, see Figure 1.6.
Figure 1.6 –Tractor PTO Shaft Rotation Definitions

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1.5 Machine Specification
1.5.1 Standard Specification
Multicut
300
Tractor
Recommended
Minimum Tractor HP
50hp/37kW
PTO
Speed
1000 RPM (540 RPM optional)
Size
35mm (1 3/8 inch), 6 spline (standard) or 21 spline (optional)
Protection
Automatic Torque Limiter
Machine
(1) (2)
Mass
1050kg (2315lbs)
Hitch
Category 2 mounted with floating clevis top link
Cutting Width (A)
2.84m (9’ 4”)
Machine Width (B)
3.03m (9’ 11”)
Length (C)
2.73m (9’)
Overall Height (D)
1.19m (3’ 11”)
Deck Height
(underside to skid) (E)
0.24m (10”)
Wheel Arms
4 position, manual adjustable
Tailwheels
2
Gearbox
Lubricant
Splitter
EP80-90W or GL-4/GL-5
Rotor (x2)
85W-140
Oil
Capacity
Splitter
1.70l (3.00 pints)
Rotor (x2)
TBC
Blades
12mm (quantity)
4
Tip Speed
85mps (16734 fpm)
Cutting
Capacity
Height
10mm-350mm (1/2”-14”)
Diameter
100mm (4”)
Driveline
Approval
ASAE Category 4
Protection
Automatic Torque Limiter
Table 1.2 –Multicut 300 Standard Specification
Notes: (1) Spearhead constantly reviews and improves product designs and reserve the right to change this
information. Actual machines may vary from the above specification. Contact your Spearhead
Sales representative if you have any queries.
(2) All dimensions are determined from computer models, so actual measurements may vary slightly.

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Figure 1.7 - Dimensions
NOTE: These illustrations for working and transport dimensions are illustrated by a Multicut 300 for visual
purposes only.

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1.5.2 Machine Options
Multicut machines can be ordered in a variety of different specifications to fit the particular user’s requirements.
Option
Picture
Gearbox
540 RPM
1000 RPM
Option
Picture
Input PTO Shaft
6 Spline
21 Spline
Option
Picture
Blade Carrier
Standard
Optional
Standard Duty
Steel blade carriers with anti-scalp
dish
Heavy Duty
Thicker, Hardox blade carriers
without anti-scalp dish
Option
Picture
Drive Couplings
Standard
Optional
Heavy Duty rubber couplings

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Option
Picture
Axles/Tyres
Standard
Optional
Forklift Truck Tyre
Laminated

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2 Safety
2.1 Level Of Danger
The operator must read, understand and follow all of the Safety instructions. Serious injury or death may occur
unless care is taken to follow the warnings and instructions provided. The level of safety is indicated in three
levels and the following notation is used throughout this operator instruction book;
DANGER! Level 1; alerts for imminent death or critical injury.
WARNING! Level 2; warns of serious injury or possible death.
CAUTION! Level 3; indicates possible injury.
IMPORTANT: Special instruction related to either the machine, tractor or the working environment
NOTE: Special instruction related to either the machine, tractor or the working environment
2.2 Terminology
The indicated levels of danger refer to specific risk situation that may occur during machine use and may involve
the same machine, the operator and any exposed persons. With the purpose of highlighting situations or
operations that may result in risks, the meanings of terms used in this manual are indicated here:
- WORKING ZONE: Any area in and/or around a machine where the presence of an exposed person constitutes
a risk to the health and safety of said person.
- BYSTANDER: A person fully or partly in a hazardous area.
- OPERATOR: The person or personnel in charge of the installation, the operation, the adjusting, the cleaning,
the repairing and the moving of the machine.
- USER: the person, entity or company, who purchased or rented the machine and intends to use it according to
the intended use foreseen by the manufacturer.
- SPECIALISED PERSONNEL: any person specifically trained and approved to carry out maintenance or repair
interventions that require particular knowledge of the machine, its operation, the installed safety devices,
intervention modes. It must be capable of recognising danger present on the actual machine, therefore avoiding
at risk situations.
- RISK: a combination of the probability and seriousness of injury or damage to health which can arise in a
dangerous situation.
- GUARD: a part of the machine that is used to specifically guarantee protection by way of a material barrier.
- PROTECTION DEVICE: a device that reduces risk (unlike the guard) either on its own or together with the
guard.
- INTENDED USE: the use of the machine in accordance with the information provided in the operators manual.
- REASONABLE FORESEEABLE MISUSE: the use of the machine different to the information provided in the
operator’s instructions, which may be the result of readily predictable human behaviour.
- GENUINE SPEARHEAD DEALER/ AUTHORIZED TRACTOR DEALER: The Genuine Spearhead Dealer/
Authorized Tractor Dealer, legally authorised by the Manufacturer, is formed by specialised staff able to carry out
all types of assistance, maintenance and repair work, even of a certain complexity, required to maintain the
machine in perfect working order.
WARNING! Carefully read the guidance as stated in this manual relating to safe use. If the instructions
described are not followed, a situation may arise which causes irreparable damage to the machine or
property, or injury - even severe - to people or animals. Spearhead declines all responsibility for damage
caused by not complying with the safety and injury prevention regulations described below. Spearhead
also declines any responsibility for damage caused by improper use of the machine and/or as a result of
modifications made without prior authorisation by the manufacturer.

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2.3 Safe Use
DANGER! It is prohibited to use the machine in ways that are different from the indications contained in
this operators manual.
Never operate the tractor or machinery until you have read and completely understood this manual and the
tractor operator’s manual and each of the safety messages given and those displayed on the tractor or
implement.
Safety is of upmost importance to the manufacturer and should be of the same level of importance for the
operator/owner. Spearhead machines have been designed to ensure the greatest level of protection to operating
personnel and bystanders. However, in practice implementing the safety as guided in this operator manual is up
to you. Only you can prevent serious injury or death from unsafe practices.
2.3.1 Operators Manual
DANGER! It is prohibited to use the machine in ways that are different from the indications
contained in this operators manual.
IMPORTANT: Read, understand and follow the safety messages stated throughout this section
and the rest of this operator’s manual. Serious injury or death may occur unless care is taken to
follow the warnings.
IMPORTANT: It is required that all operators and personnel carrying out maintenance on this
machine familiarise themselves with the machine and this operator manual to ensure they are
aware of the dangers of incorrect use or improper or incorrect repairs.
2.3.2 Personnel Preparation
DANGER! It is prohibited to use or have the machine used by personnel that are incompetent
and not properly trained in the use of the tractor and machine controls and who are in poor
health and physical condition or under the use of drugs or alcohol.
DANGER! It is forbidden to drive the agricultural tractor attached to the machine or have it
driven by personnel without an appropriate driving licence.
CAUTION! It is mandatory to use suitable clothing; PPE for example. Strictly avoid long or
loose clothing that could be caught in any way by moving parts. Wear suitable helmets, glasses,
gloves, footwear, etc.
WARNING! When operating the machine do not wear loose or trailing clothing which may
became snagged or entangled in moving parts.
CAUTION! Wear suitable clothing and PPE to cater for the working environment. In some
geographical locations, wildlife such as bees or insects or larger wildlife could impact the
wellbeing of the operator, machine and other bystanders. Inspect the work location before
commencing work.
DANGER! Ensure you never smoke or have an open flame near the tractor or machine.
2.3.3 Tractor and Machine Preparation For Work
IMPORTANT: Before starting, safety checks on tractor and machine must be carried out with
regard to: functionality, road safety and accident prevention rules.
CAUTION! Check that the agricultural tractor on which the machine is installed is of adequate
power, weight and configuration, compatible with the model fitted and fitted with a seat belt.

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The tractor should exceed the weight of the machine by at least 20%. For machine weights see
Section 1.5.
IMPORTANT: Before preceding to start work ensure that steering and braking give proper
operation and are in good condition.
CAUTION! Before proceeding to take the machine into the work area ensure that driving vision
is not impaired by tractor, cab or implement for clear vision of ground hazards and bystanders
while seated in the driver’s seat.
Adjust rear view mirrors in order to see clearly the machine and all items behind.
CAUTION! Where a machine is used in conjunction with tractors not fitted with a glazed safety
cab, a clear polycarbonate safety screen together with a mesh guard must be fitted to the tractor
between the operator and the cutting unit. A polycarbonate safety screen must be used on
cabs where windows are likely to be left open for ventilation purposes. It is essential that cab
windows on the operating side, through which the machine is observed, are intact, clean and
closed. Otherwise a clear polycarbonate safety screen must be fitted where grass trimming
operations are carried out.
CAUTION! Always wears protective, steel toe-cap boots when operating or being anywhere
near the tractor or machine.
CAUTION! If the agricultural tractor has no closed cabin, the operator is required to use extra
Personal Protection Equipment. Ear protectors are required and a dust mask if the working
ground lifts a considerable amount of dust along with safety glasses. If your health is
compromised during work or afterwards, stop immediately and seek professional medical
advice immediately.
CAUTION! If the agricultural tractor has no closed cabin, the tractor must be equipped. The
“Rollover Protection Structure” (ROPS) must always be locked in position.
CAUTION! Ensure that the tractor destined to be used with the machine has a vertical
escaping, bonnet mounted exhaust to reduce potential fire risk when the machine is in
operation. If the tractor is equipped with a under frame exhaust seek a different tractor of use.
CAUTION! If two or more tractors/machines are being used in close proximity in the working
area, enclosed cabs must be used.
IMPORTANT: The condition of blades and all guards must be checked before beginning daily
work and they must be replaced if damaged or missing before proceeding to use the machine.
IMPORTANT: Periodically (every 8 hours) verify that the screws and bolts are tightened and
secure, especially those that secure the blades.
IMPORTANT: The condition of the headstock wire ropes must be checked before beginning
daily work and they must be replaced if damaged or missing before proceeding to use the
machine.
IMPORTANT: Using the types of lubricating oils indicated by Spearhead and follow the
recommended guidelines of the lubricant manufacturer. Check oil levels and grease points daily
to ensure the longevity of your components on your machine following the maintenance section
of this operators manual.
Follow the guidance of the lubricant manufacturer with regards to handling oils, solvents,
cleansers and other chemical agents.
CAUTION! Check the machine daily for gearbox leaks. If any component in the system is
faulty, replace the component before preceding to use the machine.