McHale Twiner Assembly instructions

McHale
Ballinrobe
Co. Mayo
F31 K138 Ireland
Tel: [phone]
Email: [email protected]
Website: www.mchale.net
CLT01169_0
Twiner
55
ISO 9001:2015
Twiner
(option for the V6740/V6750 baler)
Operator Instruction Manual
Issue 4
(valid from serial number 808000)

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McHale Twiner
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Thank you for buying this McHale machine, you have chosen wisely!
Given proper care and attention, you can expect it to provide you with
years of dependable service.
It is important to quote the machine serial number when ordering spare parts or
requesting technical assistance. Space is provided below to record machine details.
If you require further copies of this instruction manual,
please quote part number: CLT01169
This manual is for twine only and should be read in conjunction with the variable
chamber baler operator manual (CLT01141).
Due to a policy of continuous product development and improvement, McHale
Engineering reserves the right to alter machine specifications without prior notice and
any obligation to make changes or additions to the equipment previously sold.
It is vital to replace defective parts of the machine immediately and to use only genuine
McHale spare parts, as these are designed and manufactured to the same standard
as the original machine. Spare parts can be obtained from your McHale dealer.
Throughout this manual there are links to other relevant sections of the manual, to
guide the reader to additional information to convey the complete message. These
links are in (grey italic font). See the example above i.e. the link to the description of
the serial number plate. When you click on the link in the PDF document, the page will
jump automatically to the linked section. With Adobe Reader, you can go back to the
page on which you clicked the link, by clicking on the ‘Previous view’ button (or by
holding ‘Alt’ and pressing the ‘left arrow’).
Warranty/Guarantee
Attention End User!
Please ensure your machine is fully registered with McHale,
by your dealer, at the time of delivery.
Failure of the dealer to register the machine will render your warranty void!
You can check the registration of your machine by visiting www.mchale.net.
Serial number:
Year of manufacture:
Date of delivery:

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Table of contents
1 Introduction 6
2 Product information 7
2.1 Designated use of the machine 7
2.2 Front view 8
3 Specific safety warnings 9
3.1 Electronic safety warnings 9
3.2 Hydraulic safety warnings 9
3.3 Noise level 9
3.4 Fire precautions 10
3.5 Special safety devices/instructions 10
3.6 Safety instruction decal locations 10
3.7 Safety warnings & instructions explained 11
4 Tractor requirements & preparation 12
4.1 Electronic control box installation 12
5 Twine requirements 13
5.1 Twine requirements 13
5.2 Care of the twine roll 13
5.3 Care of the twine binding system 13
5.4 Loading the twiner 14
5.5 Field operation & adjustments 19
6 Electronic control system 22
6.1 Control box functions 23
6.2 Choose net or twine 24
6.3 Control box features 25
6.4 Electronic functions 34
6.5 Warning messages 39

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1
Introduction
This manual is for twine only and should be read in conjunction with the variable
chamber baler operator manual (CLT01141). The McHale Twiner is designed to fit a
variable chamber baler, to bind round bales with twine, as an alternative to net. The
design has been developed based on years of extensive research and development in
the field of round balers. Given proper care and attention, the machine will provide
years of reliable and dependable performance.
Please do not assume that you know how to operate and maintain your machine before
reading this manual carefully. In order to prevent misuse, damage and accidents, it is
very important that everybody who will operate the machine is a fully trained operator.
They must read and fully understand all of the contents of this manual, before operating
the machine, paying particular attention to the following:
Safety instructions
Functions
Controls (hydraulic & electrical)
It is highly recommended to get acquainted with any new machinery slowly. Take time
to learn and understand all of the features of the machine. Proficiency will increase as
more experience is obtained.
If you have any questions in relation to the instructions in the manual, please contact
your McHale dealer. It is highly recommended that training be sought from your local
McHale dealer.
The operator is solely responsible for the safe use and maintenance of the machinery,
in accordance with this manual. Keep this manual safe and make sure it remains with
the machine, at all times.

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2
Product information
The machine is protected against many dangers to itself while being operated from the
control box in manual and fully automatic modes. However, it is of the utmost
importance for the safety of the operator and for others, that the operator pays attention
to all warnings and instructions given in this manual. In particular all safety devices,
decals, guards and controls must be in place and in fully functioning condition. Never
try to clear any malfunction when the tractor is switched on or while the machine is
running. Keep the ‘Danger Zone’ (an area around the machine) free of all persons and
animals at all times, while the machine is in operation. This manual must be read and
fully understood by anyone who will operate the machine.
2.1 Designated use of the machine
The machine is exclusively designed for normal use in agricultural applications. This
product is designed for a variable chamber baler to bind, with twine, round bales of
forage/straw for the purpose of storage as fodder/bedding for livestock. The
manufacturer will not be held responsible for any loss or damage resulting from
machine applications other than those specified above. Any other use the machine
may be put to is entirely at the owner/operator’s risk.
The designated use of the machine includes that:
The operating, maintenance and repair instructions given by the manufacturer
will be strictly fulfilled
Exclusively persons who are familiar with it and instructed about the risks are
entitled to operate, maintain and/or repair the machine
The relevant health and safety requirements, that may be in force in the
country of use, will be strictly followed
No other equipment or accessories, other than released by McHale, are
installed in the machine. The use of any other equipment or accessory is
entirely at the owner/operator’s risk. In such cases, unauthorised
modifications/changes exclude any liability of the manufacturer.
WARNING: Loss of machine validity
By any alteration of safety equipment, the declaration of conformity and
the CE sign loses its validity for this machine.

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2.2 Front view
No. Machine function
1Storage row for twine rolls
2Bottom row for twine rolls (to feed unit)
3Middle row for twine rolls (to feed unit)
4Twine feed tensioners
5Starting eyelets (twine feeder unit)
6Eyelets (feed rolls 1 and 2)
7Distribution motor
8ECU
9Twine holder hooks
10 Feed rolls 1 and 2
11 Feed motor
1
6
5
10
2
3
7
4
9
8
11

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3
Specific safety warnings
3.1 Electronic safety warnings
 This machine is equipped with electronic parts and components which comply to
the EMC directive 2014/30/EU but still may be influenced by electromagnetic
transmissions of other apparatus, such as welding machines, etc.
Check electric cables regularly for signs of breakage or wear. If in doubt
always replace.
Do not modify any safety circuits (faulty safety circuits will cause risks).
3.2 Hydraulic safety warnings
The maximum pressure in the hydraulic system of this machine should not
exceed 210 bar.
Always ensure the system is not under pressure before working on the
machine. Oil under pressure can penetrate the skin and cause injury. Beware
of pipes under accumulator pressure, depressurise lines by unthreading
connections extremely slowly.
Hydraulically actuated devices must be blocked mechanically against
movement, before working on the machine.
If any hoses are removed or replaced ensure they are marked and re-installed
to the correct position during re-assembly.
Do not work on hydraulic systems unless you are qualified to do so. This work
should only be carried out by qualified persons or your McHale dealer.
3.3 Noise level
The European Regulation 2003/10/EU directs employers and employees to
control the noise level at work. The noise level at field work may differ
according to the tractor, ground, crops and other environmental conditions.
In normal conditions, whilst driving the machine, the noise level to the driver’s
ear does not exceed 70 dB (A) with the rear screen of the tractor cabin open.
The common noise level of the machine and the tractor is primarily influenced
by the tractor noise (radio is an additional noise source). It is recommended to
operate this machine with closed cabin windows.

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3.4 Fire precautions
Be aware that crops are easily inflammable.
Do not smoke or make use of any open fire next to the machine.
A functioning fire extinguisher should always be available on the tractor.
The machine is to be kept clear of oil, grease, crops, string, plastic or any
other flammable material at all times.
Do not continue to work with overheated parts, cables or pipes, unless you
have identified and eliminated the reason for overheating.
3.5 Special safety devices/instructions
The owner of the machine is obliged, by law, to ensure that all safety devices
are installed on the machine and are in good functioning condition.
Always use protective gloves when replacing knife blades.
3.6 Safety instruction decal locations

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3.7 Safety warnings & instructions explained
Danger areas which cannot be protected by any devices are marked by yellow safety
decals. Therefore it has to be ensured that all safety warnings and instructions are
understood and followed. If any of the decals are damaged or missing, they are
available from your McHale dealer. The relevant part numbers are shown in brackets.
The decals featured on the machine are displayed with their meanings below:
Do not powerwash!
(CST00248)
Electrical hazard!
(CST00249)
Disconnect ECU before welding!
(CST00921)

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4
Tractor requirements & preparation
4.1 Electronic control box installation
A good power supply is critical for proper machine operation as the electronic control
box is the main interface between the operator and the machine. The electric power
supply is obtained from the 12 V socket of the tractor. Connect the power leads as
shown below.
The electronic control box must be located inside the tractor cab in the operator’s field
of vision and within easy reach of the red emergency stop button. (See ‘Electronic
control system’) . Secure the control unit in the tractor cab, using the V-brackets and
fasteners provided. The male half attaches to the control box and the female half
attaches to the tractor cab allowing for quick placement/removal, every time it is used.
Ensure that the cable to the machine is not under tension and not near sharp edges, etc.
The control box is to be connected to a 12 V, 20 A power supply, using the supplied
power lead or the battery power cable. The control box is not waterproof, it must be
protected from rain.
CAUTION: Do not connect control box to a 24 V power supply
Do not attempt to connect the control box to a power supply greater
than 12 V, as machine component damage will result.

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5
Twine requirements
5.1 Twine requirements
In order for the machine to produce well-shaped bales of excellent density, a top quality
twine should be used. It is of the utmost importance that the twine is used and stored
according to the instructions of the twine manufacturer.
5.2 Care of the twine roll
The twine rolls should be protected from damage, moisture, and prolonged exposure
to the sun.
5.3 Care of the twine binding system
Before operating the machine, ensure that the following procedure is followed to
ensure improved twiner operation:
Clean off the metal feed rollers and remove any fragments or debris.
Ensure all eyelets, guides and tensioners are aligned and adjusted correctly.
ENVIRONMENT: Recycling of waste twine
Respect the environment! Never throw away or burn the waste twine.
Always take waste materials to a recycling centre.
CAUTION: Ensure safety first!
Ensure the tractor engine is turned off and the control box power is
disconnected, before attempting to thread or adjust the twiner.

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5.4 Loading the twiner
CAUTION: Ensure safety first!
Ensure the tractor engine is turned off and the control box power is
disconnected, before attempting to thread or adjust the twiner.
1. Open the right hand door panel to
gain access to the twine storage unit,
located inside.
2. Load 6 rolls of twine into the bottom 2
rows of the twine storage unit. Spare
rolls of twine can be placed in the top
row. Each twine roll has a start end,
from the core and a tail end on the
outside.
Twine
storage unit Twine feeder unit
Start
end
Tail
end

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3. The start end of each roll (from the
core) should be threaded through the
pigtail guide, directly above it, going
from left to right. The 3 rolls in each
row must be joined together so that
the twine is continuous. This applies
to the middle and bottom rows only,
as the top row is purely for storing
spare rolls.
4. Use a simple sheet knot to join the
twine. Once the knot is pulled tight,
trim the tails short.
5. As the twine rolls get used up when
baling, twine is pulled from the 1st
roll, then the 2nd roll and finally the
3rd roll.
The tail end of the 1st roll should be
knotted to the start end of the 2nd roll.
The tail end of the 2nd roll should be
knotted to the start end of the 3rd roll.
Then thread the start end of the 1st
roll through the eyelet to the right.
6. Fit the bungee cord for each row.
Ensure the canvas cover is in place
over the middle row to prevent dust
and debris from falling.
The tail end of the 3rd roll, in each
row, should be tucked under the
retaining bungee cord to keep it
secure. This helps prevent the twine
from knotting and snagging up.
1
2
3
1
2
3

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7. If the 1st or 2nd roll positions are
empty, when replacing spare rolls,
the remaining roll(s) in use can be
repositioned to the 1st and 2nd roll
positions, ensuring the twine is
moved to the corresponding pigtail
guide(s). The new spare rolls are
threaded and connected, as
explained earlier.
8. Thread both twines through the
eyelets to their respective tensioners.
NOTE: Do not overtighten the
adjusters on the twine tensioner as it
will make feeding the twine slow and
cause it to snap and break.
There should be no more than one
thread visible outside the nyloc nut,
on each bolt!
9. Once the twines are through the
tensioners, pull them through the exit
eyelets on the storage unit. Then,
pass the twines into the starting
eyelets on the twine feeder unit.
NOTE: Do not cross the twines!
10. Continue the twines through the next
eyelets, at feed roll 1.
Put the top twine through the eyelet,
as shown, and feed it into the guide
eyelet in front of feed roll 1.
Continue the lower twine through to
the next eyelet, at feed roll 2.

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11. Then, pass the twine through the
large rear eyelet, behind feed roll 1.
Ensure the twine sits on top of the
roller and is not tangled in the sensor
target bolts.
12. Reach through the opening to grab
the twine and pull it through.
CAUTION: Ensure the tractor engine
is turned off and the control box
power is disconnected before doing
so!
13. Push down on the spring loaded arm
(which separates the feed rollers), to
make it easier to pull the twine
through. Pull the twine to ensure it is
running free. As the twine is pulled it
will centre itself between the rollers.
Then release the arm.
14. Cut off excess twine in the knife
provided, by pulling down sharply.
The cut end will be caught between
the knife and the frame. Leave it in
place as it will allow the twine to feed
onto the bale in a loop, which is much
more predictable.

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15. Repeat steps 10 to 14 for feed roll 2.
16. Do not overtighten the feed roller
compression springs as the rollers
will crush the twine making it very
weak.
NOTE: If the twine feeds correctly to
the bale and then breaks, as soon as
it accelerates to bale speed, it is likely
that these springs are over tightened.
There should be no more than 2 or 3
threads visible outside the nyloc nut,
on each bolt!

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5.5 Field operation & adjustments
From time to time it may become necessary to carry out adjustments to the machine,
whether to improve machine performance or allow for general wear and tear. Such
adjustments are part of the machine design. The following chapter gives details of how
to go through the various adjustments. Some of these are field adjustments while
others will be performed during machine maintenance or initial set-up. All of these
adjustments should be checked thoroughly before the machine goes to work for the
first time. The baler should be parallel to the ground when working.
5.5.1 Chain adjustment
It is important for the efficient operation of the machine that all drive chains are kept
correctly tensioned. The following is a general guide to chain adjustment.
The sag is measured at the midpoint of the chain between the sprockets. Always
ensure one side of the chain is tight so that the correct reading is obtained. Even though
some drives differ in detail the basic adjustments stay the same.
The following chains will require an inspection for sagging after the first 500 bales and
must be inspected once per 1,000 bales after that.
Track chain adjustment
WARNING: Always think 'Safety First'!
Always ensure that tractor is stopped, handbrake applied, engine
stopped and ignition key removed before working on machine. Always
maintain machine according to manufacturer's instructions.
AA
B

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To adjust the chain, the use of 10 mm and 13 mm spanners are required.
1. First remove the bottom cover, using the first 2 thumbscrews to gain access.
2. Loosen the 2 x M6 bolts (A) a little, using 2 x 10 mm spanners.
3. Then the M8 nyloc nut on the adjuster (B), which is located underneath, can be
tightened (The nut on the adjuster usually only has to be loosened if the chain
is being replaced). To adjust the chain, use a 13 mm spanner so that there is
no more than 10 - 20 mm sag measured halfway along the chain length.
4. Finally, retighten the 2 x M6 bolts (A), using 2 x 10 mm spanners and refit the
bottom cover, using the 2 thumbscrews.
5.5.2 Blade replacement
If blades become blunt or corroded or are failing to cut the twine cleanly, then they must
be replaced. There are 4 blades on the twine feeder unit, 2 for the twine pre-cut after
threading and 2 to cut the twine after it has been applied to the bale.
Blade replacement should be carried out in the following way:
1. Use 10 mm spanners to open the M6 bolts.
2. Only loosen the bolts enough to remove the blades.
3. Replace the existing blades with new ones (CKN00011).
4. Tighten the M6 bolts wtih 10 mm spanners.
WARNING: Ensure the tractor is shut down
Ensure that the tractor engine has been shut down, the key removed
and the brakes applied before carrying out the following procedure.
WARNING: Always wear protective clothing and gloves
Always wear suitable protective clothing and gloves when replacing
blades or handling sharp objects. A set of plastic pincers or forceps can
be useful.
Blade to pre-cut the twine Blade to cut the twine after application