Bernhard Express Dual 3000 Manuale utente
EXPRESS DUAL 3000 MANUAL
EXPRESS DUAL 3000
Please read this manual carefully before using the Express Dual.
This manual should be kept in a safe place so that it can be used for future reference.
ED3000 Automatic Spin Grinder
User’s Guide &
Instruction Manual
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
EXPRESS DUAL
Contents
BERNHARD AND COMPANY LTD
Bilton Road • Rugby • England • CV22 7DT
Tel +44 1788 811600 • Fax +44 1788 812640
Email: info@bernhard.co.uk
USA Toll Free 1-888 GRIND IT (
1-888 474 6348)
ED3000 Precision Reel/Cylinder Grinder
You are now the owner/operator of a Bernhard’s Express Dual 3000 which, if cared
for and operated correctly, will give you years of good service.
This manual will enable you to obtain the best results from your Express Dual so
please read it thoroughly before using your machine.
If you have any service or operational problems contact your distributor,
or phone our
Technical Helpline (USA only) – 1-888 474 6348
or
Bernhard and Company Ltd, England –
(+44) 1788 811600
or email
use the technical support feedback form on our web site
www.expressdual.com or www.bernhard.co.uk
Identication of Pictograms 3
Safety 6
Installation 7
Identication of Tools and Equipment 9
Understanding the Machine 10
In Frame Grinding 12
Electrical Fault Finding 20
Maintenance 21
Part Lists and Exploded Diagrams 25
Wiring Diagrams 44
© Bernhard and Company Limited • ED3000_2004/04
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
BEWARE! HIGH VOLTAGE
1. Identication of Pictograms
MAXIMUM LIFT PLATFORM
LOAD - 250 KG (550 LBS)
BEWARE!
TRAPPING FEET OR OTHER OBJECTS
WHEN LOWERING LIFT PLATFORM
MAXIMUM GRINDSTONE
DIAMETER 150mm
MAXIMUM SPEED 2200 Rev/Min
BEWARE!
MOVING GRINDSTONE AND SHAFT
REEL ROTATING AT BETWEEN
147 AND 255 Rev/Min
TOTAL WEIGHT OF MACHINE (KG)
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
WEAR EYE, EAR AND BREATHING
PROTECTION
1. Identication of Pictograms
(Continued)
POINTS FOR ATTACHING
LIFTING EYES
BEWARE!
MOVING COMPONENTS KEEP HANDS
AND OTHER OBJECTS CLEAR
GRINDSTONE START CONTROL
REEL START CONTROL
STOP CONTROL
TRAVERSE START CONTROL
ENGAGE / DISENGAGE (INCREASE /
REDUCE) GRINDSTONE FEED
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
Emergency Stop
(Twist to release)
Unclamp
Clamp
Reset
Display
Traverse On Reel (Spin)
Drive On
Grindstone
On
Position
Value
Display
Balance
Indicator
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
2.1 This machine is designed and manufactured ONLY for grinding lawn mower reels, rollers,
groomers and verticut units, and MUST NOT be used for any other purpose.
2.2 This machine should be installed, operated and maintained by competent personnel who
have received adequate training.
2.3 Before carrying out any work on the machine, other than grinding, ALWAYS SWITCH OFF
the main electrical supply, or remove the power lead from its socket.
2.4 ALWAYS operate the machine with the guards in position.
2.5 NOISE - Owing to the widely varying conditions of use, noise emissions may vary
considerably. There may be occasions when the safe noise level may be exceeded (see
note on noise emission). In this case adequate ear protection MUST be worn.
2.6 NEVER t or use a grinding wheel (or other spares) other than those supplied specically
for use on the EXPRESS DUAL (Warranty will be invalidated).
2.7 NEVER t or use a grinding wheel which has been dropped or subjected to any other form
of abuse.
NOTE: Grinding wheels should be tted ONLY by competent, trained personnel.
2.8 NEVER leave rags or tools on the machine or wear any loose clothing or other articles
which could be caught in moving components.
2.9 NEVER allow any combustible materials to be placed on or around the machine.
2.10 ALWAYS ensure that all parts of the cutting unit being ground are securely xed.
2.11 ALWAYS ensure that all electrical connections are sound and all cables are safely routed.
2.12 ALWAYS carry out cleaning and maintenance of the machine as instructed in this manual
(Refer to safety note 1.3).
2.13 STAY ALERT. Watch what you are doing. NEVER operate the machine when tired, or
under the inuence of drugs or alcohol.
If a lift table is fitted NEVER attempt to lift in excess of the rated capacity, and always
ensure that the area is clear before lowering the load.
2. Safety
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
3. Set Up and Installation
Fig: 3.2
3.1
Handling
If the machine is crated, it can be moved by a suitable fork lift truck or pallet truck under
the pallet (skid). Once the lid and sides of the crate are removed, a fork lift truck may be
used under the lifting members of the machine chassis.
The machine can be lifted off the pallet using suitable lifting tackle through 4 lifting eyes
(provided) tted at the points indicated on the top corners of the machine.
The total weight of the machine is indicated on the machine plate and also at the front of
this manual.
3.2 Location
The machine should be located in a well lit environment with adequate headroom. For
ideal operation, the machine should be accessible from the front, rear and at least one
side, with clearance around it as indicated in the sketch (Fig. 3.2).
3.3 Leveling
The machines should,ideally, be placed on a solid level oor, and this should be checked
by placing a spirit level on the table. Check the level in both directions. Steel shims should
be placed under the feet as necessary to ensure that the machine is rm and level. Bolt
holes are provided in the feet which can be used for xing down if required.
NOTE Ensure that the packing under the feet is correct before tightening the bolts, otherwise
twisting of the frame may occur.
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
3.4 Electrical Supply
USE A QUALIFIED ELECTRICIAN
The EXPRESS DUAL is supplied with a .55 kW ( HP) single phase main (grind) motor
plus 2 fractional HP motors, for spin and traverse.
Power connection to the machine is via plug and socket termination of the lead supplied.
Connection is at the rear of the main electrical control box on the right hand end of the
machine.
Ensure that any cable or conduit run to the machine does not constitute a hazard to the
operator or other personnel.
Machine should be connected to the supply via a 20A breaker.
The top of the reel and the top of the grinding wheel should both move away from the
front of the machine (i.e. both rotate clockwise when viewed from right hand end of the
machine). In this way, the reel and grinding wheel are moving in OPPOSITE DIRECTIONS
at the point of contact.
[For full electrical spec’s, see bid spec at rear of manual.]
3.5 Preparation
If the machine has been
received in a crate, the handles
on the control wheels should be
removed from the underneath of
the control wheels and retted to
the top (see Fig. 3.5).
It is important that the protective
film on the main shaft is
removed prior to using the
machine. This can be done
using a WD40 or similar product
(not gas/petrol) and then drying
the shaft with a clean, dry cloth
so that the grinding wheel
assembly moves freely along
the whole length of the shaft.
A spray lubricant, such as WD40, should be applied to all bare metal surfaces and moving
parts; this includes the reversing bar and the shafts (along which the fork assembly
traverse, but NOT THE MAINSHAFT).
The mainshaft should be washed down as instructed in the maintenance section of this
manual. The feed control screws are normally coated with molycote, and may be washed
down with WD40 if required and recoated with molycote (or similar anti friction coating)
when dry.
Fig: 3.5
3. Installation
(Continued)
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
4. Identication of Tools and Equipment
The items below may not necessarily be included since the tools and equipment
supplied will vary according to the machine specication.
4.1
Express Dual 3000 and 3000DX (see illustrated parts list).
A4066 Long 1/2” AF Ball handled Allen Key
A2706 3/16” AF Tee handled Allen Key
A2719 Grinding Wheel Nut Wrench
A2720 1/2” AF Allen Key
A2714 Adjustable Sprocket Driver
A9182 Drive Rod Plain (short)
A4134 Drive Rod Square (short)
A4063 2 Pin Drive (large)
A4276 2 Pin Drive (small)
A9181 3 Pin Drive (small)
A4097 Adjustable Plain Shaft Driver
A2712 8mm Long Series Allen Key
A6161 1/8” Allen Key
A4087 Channels for Multix Brackets
A6342 Backing up/Pressure Plate (not shown)
A4106 Ransomes 5/7 Driver (Standard only on European units)
A6737 Diamond Dresser
A9500 Adustable Front Roller / Multix Brackets
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EXPRESS DUAL • ED3000
© Bernhard and Company Limited
5. Understanding the Machine
5.1
General Principles
The EXPRESS DUAL is designed to grind reels completely assembled, or as a separate
“loose” reel. A Loose Reel Kit (Available as an optional extra, at additional cost) is required
for this operation.
The basic principle of the EXPRESS DUAL is to grind mowers in exactly the same
conditions that they mow in. The grinding wheel takes the place of the grass, striking the
reel in relatively close proximity to that found in the mowing position.
5.2 Basic Requirements
It is important that grinding the cutting unit, when it remains completely assembled, takes
place under the following conditions:
5.2.1 The reel bearings MUST be in good condition, adjusted correctly and if the roller is to be
located on the roller mounting brackets or the multix brackets, the roller bearings MUST
also be in good condition.
5.2.2 The bedknife must be ground separately on a machine, such as the ANGLEMASTER
bedknife grinder which can guarantee that the blade will be perfectly STRAIGHT and at
whilst mounted on the bedbar.
During the reel grinding process, it is advisable that the bedknife/bedbar assembly is
replaced in the unit after having been ground. On many units the bedknife/bedbar is an
integral part of the frame and contributes to its strength and rigidity.
5.2.3 The reel or bedknife must be adjusted away from one another to allow free rotation (There
should be no reel to bedknife contact!).
5.2.4 It is essential that all work to be carried out on the mowing unit (all mower repairs
– bearings, seals, roller work, etc.) has been completed prior to grinding the reel. The last
operation of all, apart from nal setting reel to bedknife, is the actual grinding of the reel
in-frame.
It is essential that the unit is held totally rm during the grinding process. When in frame
grinding, the front of the unit must be held rmly in the multix brackets or on the front
roller brackets.
5.2.5 It is essential that the unit is held totally rm during the grinding process. When in frame
grinding, the front of the unit must be held rmly in the multix brackets or on the front
roller brackets.
The rear of the unit will be held by the radiused pressure bar at the rear of the grinder.
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