McConnel SR460 User manual

Publication 561 (Ed.2)
August 2021
Part No. 41571.61
FLEXWING MOWER
Operator Manual

IMPORTANT
VERIFICATION OF WARRANTY REGISTRATION
Dealer Warranty Information & Registration Verification
It is imperative that the selling dealer registers this machine with McConnel Limited before
delivery to the end user –failure to do so may affect the validity of the machine warranty.
To register machines; log onto https://my.mcconnel.com and select ‘Machine Registration’
which can be found in the ‘Warranty’section of the site. Confirm to the customer that
the machine has been registered by completing the verification form below.
Registration Verification
Dealer Name:
……………………..……………………………………………………………..
Dealer Address:
…….…………………………………………………………………………..
Customer Name:
……………………..…………………………………………………………
Date of Warranty Registration:
……/……/...… Dealer Signature: ………………..………
Note to Customer / Owner
Please ensure the section above has been completed and signed by the dealer to verify
your machine has been registered with McConnel Limited.
IMPORTANT: During the initial ‘bedding in’ period of a new machine it is the customer’s responsibility
to regularly inspect all nuts, bolts and hose connections for tightness and re-tighten if required. New
hydraulic connections occasionally weep small amounts of oil as the seals and joints settle in –where
this occurs it can be cured by re-tightening the connection –refer to torque settings chart below. The
tasks stated above should be performed on an hourly basis during the first day of work and at least
daily thereafter as part of the machine’s general maintenance procedure.
CAUTION: DO NOT OVER TORQUE HYDRAULIC FITTINGS AND HOSES
Torque Settings for Hydraulic Fittings
Hydraulic Hose Ends
Port Adaptors with Bonded Seals
BSP
Setting
Metric
BSP
Setting
Metric
1/4”
18 Nm
19 mm
1/4”
34 Nm
19 mm
3/8”
31 Nm
22 mm
3/8”
47 Nm
22 mm
1/2”
49 Nm
27 mm
1/2”
102 Nm
27 mm
5/8”
60 Nm
30 mm
5/8”
122 Nm
30 mm
3/4”
80 Nm
32 mm
3/4”
149 Nm
32 mm
1”
125 Nm
41 mm
1”
203 Nm
41 mm
1.1/4”
190 Nm
50 mm
1.1/4”
305 Nm
50 mm
1.1/2”
250 Nm
55 mm
1.1/2”
305 Nm
55 mm
2”
420 Nm
70 mm
2”
400 Nm
70 mm
Serial No.

Warranty Policy (page 1 of 3)
WARRANTY POLICY
WARRANTY REGISTRATION
All machines must be registered, by the selling dealer with McConnel Ltd, before delivery to the end user.
On receipt of the goods it is the buyer’s responsibility to check that the Verification of Warranty
Registration in the Operator’s Manual has been completed by the selling dealer.
1. LIMITED WARRANTIES
1.01. All mounted machines supplied by McConnel Ltd are warranted to be free from defects in material
and workmanship from the date of sale to the original purchaser for a period of 12 months, unless a
different period is specified.
All Self Propelled Machines supplied by McConnel Ltd are warranted to be free from defects in
material and workmanship from the date of sale to the original purchaser for a period of 12 months
or 1500 hours. Engine warranty will be specific to the Manufacturer of that unit.
1.02. All spare parts supplied by McConnel Ltd and purchased by the end user are warranted to be free from
defects in material and workmanship from the date of sale to the original purchaser for a period of 6
months. All parts warranty claims must be supported by a copy of the failed part invoice to the end
user. We cannot consider claims for which sales invoices are not available.
1.03. The warranty offered by McConnel Ltd is limited to the making good by repair or replacement for the
purchaser any part or parts found, upon examination at its factory, to be defective under normal use
and service due to defects in material or workmanship. Returned parts must be complete and
unexamined. Pack the component(s) carefully so that any transit damage is avoided. All ports on
hydraulic items should be drained of oil and securely plugged to prevent seepage and foreign body
ingress. Certain other components, electrical items for example, may require particular care when
packing to avoid damage in transit.
1.04. This warranty does not extend to any product from which McConnel Ltd’s serial number plate has
been removed or altered.
1.05. The warranty policy is valid for machines registered in line with the terms and conditions detailed and
on the basis that the machines do not extend a period of 24 months or greater since their original
purchase date, that is the original invoice date from McConnel Limited.
Machines that are held in stock for more than 24 months cannot be registered for warranty.
1.06. This warranty does not apply to any part of the goods, which has been subjected to improper or
abnormal use, negligence, alteration, modification, fitment of non-genuine parts, accident damage,
or damage resulting from contact with overhead power lines, damage caused by foreign objects (e.g.
stones, iron, material other than vegetation), failure due to lack of maintenance, use of incorrect oil or
lubricants, contamination of the oil, or which has served its normal life. This warranty does not apply
to any expendable items such as blades, belts, clutch linings, filter elements, flails, flap kits, skids, soil
engaging parts, shields, guards, wear pads, pneumatic tyres or tracks.
1.07. Temporary repairs and consequential loss - i.e. oil, downtime and associated parts are specifically
excluded from the warranty.
1.08. Warranty on hoses is limited to 12 months and does not include hoses which have suffered external
damage. Only complete hoses may be returned under warranty, any which have been cut or repaired
will be rejected.
1.09. Machines must be repaired immediately a problem arises. Continued use of the machine after a
problem has occurred can result in further component failures, for which McConnel Ltd cannot be held
liable, and may have safety implications.
1.10. If in exceptional circumstances a non McConnel Ltd part is used to effect a repair, warranty
reimbursement will be at no more than McConnel Ltd’s standard dealer cost for the genuine part.

Warranty Policy (page 2 of 3)
1.11. Except as provided herein, no employee, agent, dealer or other person is authorised to give any
warranties of any nature on behalf of McConnel Ltd.
1.12. For machine warranty periods in excess of 12 months the following additional exclusions shall apply:
1.12.1. Hoses, exposed pipes and hydraulic tank breathers.
1.12.2. Filters.
1.12.3. Rubber mountings.
1.12.4. External electric wiring.
1.12.5. Bearings and seals
1.12.6. External Cables, Linkages
1.12.7. Loose/Corroded Connections, Light Units, LED’s
1.12.8. Comfort items such as Operator Seat, Ventilation, Audio Equipment
1.13. All service work, particularly filter changes, must be carried out in accordance with the manufacturer’s
service schedule. Failure to comply will invalidate the warranty. In the event of a claim, proof of the
service work being carried out may be required.
1.14. Repeat or additional repairs resulting from incorrect diagnosis or poor quality previous repair work
are excluded from warranty.
NB Warranty cover will be invalid if any non-genuine parts have been fitted or used. Use of non-genuine
parts may seriously affect the machine’s performance and safety. McConnel Ltd cannot be held
responsible for any failures or safety implications that arise due to the use of non-genuine parts.
2. REMEDIES AND PROCEDURES
2.01. The warranty is not effective unless the Selling Dealer registers the machine, via the McConnel web
site and confirms the registration to the purchaser by completing the confirmation form in the
operator’s manual.
2.02. Any fault must be reported to an authorised McConnel Ltd dealer as soon as it occurs. Continued use
of a machine, after a fault has occurred, can result in further component failure for which McConnel
Ltd cannot be held liable.
2.03. Repairs should be undertaken within two days of the failure. Claims submitted for repairs undertaken
more than 2 weeks after a failure has occurred, or 2 days after the parts were supplied will be
rejected, unless the delay has been authorised by McConnel Ltd. Please note that failure by the
customer to release the machine for repair will not be accepted as a reason for delay in repair or
submitting warranty claims.
2.04. All claims must be submitted, by an authorised McConnel Ltd Service Dealer, within 30 days of the
date of repair.
2.05. Following examination of the claim and parts, McConnel Ltd will pay, at their discretion, for any valid
claim the invoiced cost of any parts supplied by McConnel Ltd and appropriate labour and mileage
allowances if applicable.
2.06. The submission of a claim is not a guarantee of payment.
2.07. Any decision reached by McConnel Ltd. is final.
3. LIMITATION OF LIABILITY
3.01. McConnel Ltd disclaims any express (except as set forth herein) and implied warranties with respect to
the goods including, but not limited to, merchantability and fitness for a particular purpose.
3.02. McConnel Ltd makes no warranty as to the design, capability, capacity or suitability for use of the
goods.
3.03. Except as provided herein, McConnel Ltd shall have no liability or responsibility to the purchaser or
any other person or entity with respect to any liability, loss, or damage caused or alleged to be caused
directly or indirectly by the goods including, but not limited to, any indirect, special, consequential, or
incidental damages resulting from the use or operation of the goods or any breach of this warranty.
Notwithstanding the above limitations and warranties, the manufacturer’s liability hereunder for
damages incurred by the purchaser or others shall not exceed the price of the goods.
3.04. No action arising out of any claimed breach of this warranty or transactions under this warranty may
be brought more than one (1) year after the cause of the action has occurred.

Warranty Policy (page 3 of 3)
4. MISCELLANEOUS
4.01. McConnel Ltd may waive compliance with any of the terms of this limited warranty, but no waiver of
any terms shall be deemed to be a waiver of any other term.
4.02. If any provision of this limited warranty shall violate any applicable law and is held to be
unenforceable, then the invalidity of such provision shall not invalidate any other provisions herein.
4.03. Applicable law may provide rights and benefits to the purchaser in addition to those provided herein.
McConnel Limited

SR460/620/820 Flexwing Rotary Mower
This manual covers the SR460/620/820 series of trailed flexwing rotary mowers which are
available in 4.6m, 6.2m and 8.2m cut widths.
They are all fitted with hydraulic rams which provide a flexwing folding ability making the
machine legal for road transportation.
These trailed heavy-duty machines can be specified with various specifications of axle,
wheel and blade combinations to suit the end users specific requirements.
These machines are fitted with 1000 rpm as standard (540 rpm is optional on SR460) and
are available with various input shaft and hitch 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.
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 McConnel parts.
The company disclaims all liability for the consequences of such use which, in addition, voids the
machine warranty.

Contents List
1 Machine Description ............................................................................................................................... 1
1.1 Intended Usage ......................................................................................................................... 1
1.1.1 Allowed Uses ............................................................................................................... 1
1.1.2 Improper Uses ............................................................................................................. 1
1.2 General Arrangement ............................................................................................................... 2
1.2.1 SR460 .......................................................................................................................... 3
1.2.2 SR620 .......................................................................................................................... 4
1.2.3 SR820 .......................................................................................................................... 5
1.3 Machine Identification ............................................................................................................... 6
1.4 Rotation Definitions & Conventions .......................................................................................... 7
1.5 Machine Specification ............................................................................................................... 8
1.5.1 Standard Specification................................................................................................. 8
1.5.2 Machine Options ........................................................................................................ 10
2 Safety .................................................................................................................................................... 12
2.1 Level Of Danger ...................................................................................................................... 12
2.2 Terminology ............................................................................................................................. 12
2.3 Safe Use .................................................................................................................................. 13
2.3.1 Operators Manual ...................................................................................................... 13
2.3.2 Personnel Preparation ............................................................................................... 13
2.3.3 Tractor and Machine Preparation for Work ............................................................... 13
2.3.4 Work Site Preparation ............................................................................................... 16
2.3.5 Machine At Work & Observation ............................................................................... 17
2.3.6 Transporting The Machine ........................................................................................ 19
2.3.7 Machine Storage ....................................................................................................... 20
2.4 Safe Maintenance ................................................................................................................... 21
2.5 Safety & Operational Decals ................................................................................................... 24
2.5.1 Definitions .................................................................................................................. 24
2.5.2 Placement .................................................................................................................. 26
2.5.3 Replacement ............................................................................................................. 27
2.6 Guards ..................................................................................................................................... 27
2.6.1 Mandatory Guards ..................................................................................................... 27
2.7 Sound ...................................................................................................................................... 28
2.8 Personal Protective Equipment .............................................................................................. 28
2.9 The Machine & The Environment ........................................................................................... 28
2.9.1 Disposal ..................................................................................................................... 29
2.10 Proposition 65 ......................................................................................................................... 30
3 Machine Preparation ............................................................................................................................. 31
3.1 Lifting The Machine ................................................................................................................. 31
3.2 Post-delivery/First Use Inspection .......................................................................................... 32
3.2.1 Tractor Inspection ...................................................................................................... 32
3.2.2 Machine Adjustment .................................................................................................. 32
3.3 PTO Shaft ................................................................................................................................ 33
3.3.1 PTO Setup & Adjustment (first use) .......................................................................... 33
3.3.2 Bottoming Out Test .................................................................................................... 33
3.3.3 Engagement Test ...................................................................................................... 34
3.3.4 Modifying & Shortening The Input PTO Shaft ........................................................... 34
3.3.5 Fitting The PTO Shaft ................................................................................................ 36
3.4 Wheels & Tyre Installation ...................................................................................................... 36
4 Usage Instruction .................................................................................................................................. 37
4.1 Operator Requirements .......................................................................................................... 37
4.2 Tractor Requirements ............................................................................................................. 38
4.3 Connecting & Disconnecting Hydraulic Hoses & Electric Cables .......................................... 38
4.4 Hitching & Unhitching The Machine........................................................................................ 40
4.4.1 Adjustable Pick-up Hitch ........................................................................................... 40
4.4.2 Fixed Pick-up Hitch .................................................................................................... 40
4.4.3 Safety Towing Chain ................................................................................................. 43
4.5 PTO Shaft ................................................................................................................................ 44
4.5.1 Fitting & Removal Of The Input PTO Shaft ............................................................... 44
4.5.2 PTO Shaft Specifications .......................................................................................... 46
4.6 Unfolding & Folding the Machine ............................................................................................ 47

4.7 Setting Up the Machine ........................................................................................................... 48
4.7.1 Front To Rear ............................................................................................................ 49
4.7.2 Wings ......................................................................................................................... 50
4.8 Setting Cutting Height ............................................................................................................. 54
4.8.1 SR460/620 ................................................................................................................. 54
4.8.2 SR820 ........................................................................................................................ 56
4.9 Work Site Assessment ............................................................................................................ 57
4.9.1 Foreign Debris Hazards ............................................................................................ 57
4.9.2 Stopping The Machine In An Emergency ................................................................. 58
4.9.3 Bystanders ................................................................................................................. 58
4.9.4 Weather ..................................................................................................................... 59
4.9.5 Fire ............................................................................................................................. 59
4.10 Safe Driving Practices ............................................................................................................. 59
4.11 Using The Machine ................................................................................................................. 61
4.11.1 Engaging The Power Take-off (PTO) ....................................................................... 61
4.11.2 Disengaging the Power Take-off (PTO) .................................................................... 61
4.11.3 Forward & Power Take-off Speed ............................................................................. 62
4.11.4 Cornering ................................................................................................................... 62
4.11.5 Crossing Ditches & Steep Inclines ............................................................................ 63
4.11.6 Un-level Ground ........................................................................................................ 64
4.12 Road Transporting the Machine ............................................................................................. 64
4.12.1 Transport Width Adjustment (SR460 only) ............................................................... 65
4.12.2 Marker Boards (SR460 only) ..................................................................................... 65
4.13 Transporting the Machine on a Trailer .................................................................................... 66
5 Maintenance ......................................................................................................................................... 67
5.1 Periodic Maintenance.............................................................................................................. 67
5.2 Lubrication & Greasing............................................................................................................ 67
5.2.1 Gearboxes ................................................................................................................. 67
5.2.2 PTO Shaft .................................................................................................................. 70
5.2.3 General Machine Greasing Point Locations ............................................................. 73
5.2.4 Greasing Schedule .................................................................................................... 74
5.3 PTO Shaft ................................................................................................................................ 74
5.3.1 Size Adjustment & Fitting To The Tractor ................................................................. 74
5.3.2 Greasing .................................................................................................................... 74
5.3.3 Input PTO shaft - Bearing Ring Replacement .......................................................... 75
5.3.4 Wing PTO shaft - Bearing Ring Replacement .......................................................... 79
5.4 Slip Clutch ............................................................................................................................... 81
5.4.1 Slip Clutch Disassembly & Servicing ........................................................................ 81
5.4.2 Freeing Seized Clutch Plates .................................................................................... 84
5.4.3 Clutch Settings........................................................................................................... 85
5.5 Blades & Anti-Scalp Dishes .................................................................................................... 86
5.5.1 Blade Options ............................................................................................................ 86
5.5.2 Blade Inspection ........................................................................................................ 86
5.5.3 Blade Sharpening & Straightening ............................................................................ 88
5.5.4 Blade Removal & Replacement ................................................................................ 88
5.5.5 Blade Bolt Inspection ................................................................................................. 89
5.5.6 Anti-scalp Dish Inspection ......................................................................................... 90
5.5.7 Anti-scalp Dish, Blade & Blade Carrier Removal & Replacement ............................ 91
5.6 Hydraulic Components ............................................................................................................ 94
5.6.1 Ram Inspection .......................................................................................................... 95
5.6.2 Wing Ram Replacement ........................................................................................... 95
5.6.3 Centre Axle Lift Ram Replacement ........................................................................... 98
5.6.4 Hoses ....................................................................................................................... 100
5.6.5 Machine Hose Diagrams ......................................................................................... 101
5.7 Wheels, Hubs & Tyres .......................................................................................................... 103
5.7.1 Tyre Pressures ........................................................................................................ 104
5.7.2 Hub Greasing .......................................................................................................... 104
5.7.3 Maximum Road Operating Speed ........................................................................... 104
5.8 Other Key Components ........................................................................................................ 105
5.8.1 Pins & Bushes ......................................................................................................... 105
5.8.2 Skids ........................................................................................................................ 105
5.9 Torque Settings ..................................................................................................................... 106

5.9.1 Nuts & Bolts ............................................................................................................. 106
5.9.2 Hydraulic Fittings ..................................................................................................... 107
5.10 Machine Inspection Record .................................................................................................. 108
5.11 Machine Storage ................................................................................................................... 110
5.11.1 Preparing the Machine for Storage ......................................................................... 110
5.11.2 Returning the Machine Back to Work ..................................................................... 111
6 Troubleshooting .................................................................................................................................. 112

1
1 Machine Description
1.1 Intended Usage
1.1.1 Allowed Uses
The SR460/620/820 flexwing group of rotary mowers were 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 SR460/620/820 flexwing group of rotary mowers are 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 70hp (SR460), 90hp (SR620) and 150hp
(SR820).
1.1.2 Improper Uses
DANGER! McConnel Limited 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 McConnel has selected, as non-exhaustive examples, a series of improper
uses that can be reasonably foreseen, which are:
 Using the machine for hedge cutting.
 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 SR Series Trailed Flex Wing Mower
(SR460 model illustrated)

2
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 for the SR460, Section, Section 1.2.2 for the SR620 and Section 1.2.3 for the SR820.
Item No.
Description
Item No.
Description.
1 Centre Deck 16 Walking Axle Wheel Bogie
2 Left-hand Wing Deck 17 Jack
3 Right-hand Wing Deck 18 Stand
4 Axle 19 Splitter Gearbox Guard
5 Walking Axle 20 Centre Lift Ram
6 Left-hand Wing Axle 21 Wing Lift Ram
7 Right-hand Wing Axle 22 Tie Bar
8 Left-hand Walking Wing Axle 23 Towing Eye
9 Right-hand Walking Wing Axle 24 Drawbar
10 Splitter Gearbox 25 Lifting Blade
11 Gearbox 26 Anti-scalp Dish
12 Centre Coupling 27 Skid
13 PTO (Power Take-Off) With Overrun 28 Chain Guard
14 Height Adjuster 29 Wheel Arm
15 Wing Adjuster 30 Wing PTO Shaft
Table 1.1 – SR460/620/820 Machine Components

3
1.2.1 SR460
Figure 1.2 – SR460 General Arrangement

4
1.2.2 SR620
Figure 1.4 – SR620 General Arrangement

5
1.2.3 SR820
Figure 1.5 – SR820 General Arrangement

6
1.3 Machine Identification
Each machine is equipped with a serial plate; see Figure 1.6 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 1.6 – Serial Plate
Data on the manufacturer’s serial no. 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 1.6) using a suitable QR scanning App, you can find details for McConnel
Machinery authorised representatives for its various territories.
The serial plate is located near the front of the left-hand side of the centre deck; see Figure 1.7.
Figure 1.7 – Serial Plate Location
(SR460 illustrated)

7
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 1.10. 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,
SR460/620/820 machines have 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 1.8 for the SR460
and Figure 1.9 for the SR620/820.
SR
460
SR
620/820
Figure 1.8 Figure 1.9
(
620
mode
l illustrated)
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 1.10.
Figure 1.10 – Tractor PTO Shaft Rotation Definitions