McHale 991 Assembly instructions

McHale
Ballinrobe
Co. Mayo,
F31 K138 Ireland
Tel: [phone]
Email: [email protected]
Website: www.mchale.net
CLT00218_5.01
55
I.S. EN ISO 9001:2015
991 High Speed
Round Bale Wrapper
Operator Instruction Manual
Issue 5

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This is the original operator manual with ‘Original Instructions’. The English
language version of the operator manual is the source document for all
translations.
If there is any conflict as to the accuracy or content, of any translation, the English
source manual remains the authorised document.
No part of this manual may be reproduced, distributed or translated, in any form or
by any means, without prior written permission by McHale.

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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: CLT00218
Due to a policy of continuous product development and improvement, McHale
Engineering reserves the right to alter machine specifications, including the contents of
this manual, without prior notice or any obligation to make changes or additions to the
equipment previously sold. Images and screenshots used in this manual may differ in
appearance from the actual product.
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
2.3 General specifications 9
2.4 Tractor specifications 9
2.5 Machine specifications 9
2.6 Tyre specifications 10
2.7 Optional equipment* 10
3 General safety 11
3.1 Be aware of all safety information 11
3.2 Follow all safety instructions 11
3.3 Store all items carefully 12
3.4 Protective clothing 12
3.5 In case of emergencies 12
3.6 Stay clear of moving parts 12
3.7 Trained operator criteria 13
3.8 In the event of a fire 13
3.9 General safety warnings 14
4 Specific safety warnings 19
4.1 Electronic safety warnings 19
4.2 Hydraulic safety warnings 19
4.3 Noise level 20
4.4 Fire precautions 20
4.5 Safety instruction decal locations 21
4.6 Safety warnings & instructions explained 22
4.7 Machine lifting guidelines 27
4.8 Jacking guidelines 28
5 Tractor requirements & preparation 29
5.1 Tractor requirements 29
5.2 Hydraulic spool valve setup 30
5.3 Attaching the wrapper 31
5.4 Connecting the control box 32
6 Bale & plastic film requirements 33
6.1 Bale requirements 33
6.2 Plastic film requirements 33
6.3 Care of the film roll 34

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7 Electronic control system 36
7.1 Electronic control box 36
7.2 Electronic control box functions 37
7.3 Available wrapping programs 38
7.4 Electronic control box setup 39
7.5 Electronic control box features 40
7.6 Counters 41
8 Wrapper operation 50
8.1 Preparing the machine for wrapping 50
8.2 Loading plastic film 51
8.3 Dispenser gears 54
8.4 Side-tip bale damper 55
8.5 Wrapping behind the tractor 55
9 Road traffic safety & operation 57
9.1 Before travelling on any public roadway 57
10 Field operation & wrapper adjustments 58
10.1 Drawbar height 58
10.2 Dispenser height 59
10.3 Table rollers/belts 59
10.4 Adjusting table magnets 60
10.5 Bale damper lift height 63
10.6 Bale damper drop speed 63
10.7 Table drive roller shearbolt replacement 64
10.8 Gearbox cross shaft roll pin replacement 64
10.9 Cut & hold accumulator pressure 65
10.10 Chain adjustments 66
11 Machine maintenance 68
11.1 Maintenance intervals 68
11.2 Tightening torque values 73
12 Storage 74
12.1 End of season 74
12.2 Start of season 74
13 Troubleshooting 75
13.1 Troubleshooting overview 75
14 Certification & Warranty 79
14.1 Declaration of Conformity 79
14.2 PDI form 79
14.3 Change of ownership pre-checks 79
14.4 Limited Warranty 79

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1
Introduction
This product is designed to wrap, with plastic stretch film, cylindrical section bales of
forage for the purpose of storage as fodder for livestock. The design has been
developed based on years of extensive research and development in the field of round
bale wrappers. 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 machine
operator. (See ‘Trained operator criteria’). 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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Think before printing documents! Is a PDF on a laptop or tablet
sufficient? If a printed copy is required, always select ‘Print on both sides
of paper’ and always try to limit the number of printed pages by selecting
a specific page range or just select ‘Current page’ if that is sufficient.

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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 (See ‘Danger Zone’). 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. The
machine has been designed to wrap cylindrical bales of forage with plastic stretch film
for the purpose of storing as fodder for feeding livestock. This designation includes the
movement of the machine, between fields by track or road, incidental to the machine’s
main use. 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
1Side-tip damper
2Lift arm
3Bale support bobbin
4Rotating table
5Cut and hold
6Bale detect sensor
72 x quick fit dispensers
8Spare film roll holders
9Shearbolt unit
10 Road lights
1
23 4 53 9
7
7
8
10
6

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2.3 General specifications
Units are given in both metric and UK imperial values, with the latter shown in brackets.
*Check with national road traffic regulations in the individual country!
2.4 Tractor specifications
2.5 Machine specifications
Transport length 5.7 m (18’ 8”)
Transport width 2.45 m (8’ 0”)
Transport height 2.46 m (8’ 1”)
Height to top of rollers 1.25 m (4’ 1”)
Transport weight (unladen) 2,125 kg (4,685 lbs)
Axle weight (unladen) 1,900 kg (4,189 lbs)
Maximum road speed* 40 km/h (25 mph)
Attachment Pin hitch
Towing tractor requirements 35 kW (47 hp)
Electrics 12 V DC, 7 A approx.
Hydraulic systems Open-centre, closed-centre, load-sensing
Minimum hydraulic pressure 170 bar (2,465 psi)
Minimum hydraulic flow rate 22 l/min (4.8 gal/min)
Maximum rotary table speed 30 rpm
Film stretch 70% (64% or 55% optional)
Film layers 2+2 system
Film width 750 mm
Maximum bale size 1.5 m (4’ 9”)
Maximum bale weight 1,000 kg (2,205 lbs)

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2.6 Tyre specifications
2.7 Optional equipment*
*May not be available in all countries, check with your McHale dealer for availability in
your country.
Side-tip option
The side-tip option is used for knocking the bale onto its side and is very useful for
coarse ground with strong stubble (which may have a tendency to puncture the film),
as it allows the bale to land on its edge, which has a much higher degree of film
coverage. It is also very useful on hilly/sloping ground as it can prevent bales from
rolling, when they land on their side.
Details Type Field
pressure
Road
pressure Part No.
340/55-16 133 A8 (Vredestein) Flo + 3.4 bar 3.2 bar CWH00022
Side-tip Side-tip damper
Dispenser gears 55% and 64% film stretch
Radio remote Allows remote control of the machine
Wired remote Remote hand piece

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3
General safety
3.1 Be aware of all safety information
Follow all safety precautions and practice safe operation of machinery, at all times.
Warning, caution, note & environment messages:
When reading this manual, pay particular attention when you see the symbols below
i.e. warning, caution, note and environment. They will be used at various points in this
manual and may also appear on safety decals on the machine. The purpose of these
messages is to ensure that the most important information stands out from the rest of
the text.
WARNING: This symbol indicates a potentially hazardous situation,
that if not avoided could result in machinery damage, personal injury
or even death.
CAUTION: This symbol indicates a potentially hazardous situation,
that if not avoided could result in machinery damage or personal
injury.
NOTE: This symbol is used to identify special instructions or
procedures which, if not followed strictly, could result in machinery
damage.
ENVIRONMENT: This symbol reminds you to respect the
environment in relation to the correct disposal of waste material.
3.2 Follow all safety instructions
Using this manual, read all safety instructions and messages, and
be aware of the meanings of all safety decals. (See ‘Safety warnings
& instructions explained’). The spare part codes for each decal are
also listed, which are available from your McHale dealer. If safety
decals are damaged or missing due to wear and tear or component
replacement, ensure that they are replaced. As with all machinery,
learn all operations and use controls by reading this manual
thoroughly. Do not attempt to let anyone operate this machine
without being fully instructed.

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3.3 Store all items carefully
Store all attachments in a secure and safe manner so as to prevent
items from falling. Keep storage areas clear of bystanders and
children.
3.4 Personal protective equipment (PPE)
The following PPE should be worn, at all times, when carrying out
maintenance work on this machine, to help prevent health and
safety hazards:
Safety glasses
Ear muffs
Safety boots
Gloves
Tight fitting clothing
Use of mobile phones or radio/music headphones are strictly
forbidden while operating machinery and driving, as these impair
the operator’s attention.
3.5 In case of emergencies
In the event of any accident, emergency equipment should be kept
close at hand. A first aid kit and fire extinguisher along with
emergency phone numbers should always be available to machine
operators.
3.6 Stay clear of moving parts
Serious injury or death can result from entanglement of clothing or body parts with PTO
shafts, drivelines and other rotating and moving components.
Keep all guards in place at all times, only wear close fitting clothing and ensure that
tractor engine has stopped and key is removed before carrying out any adjustments,
connections or cleaning of equipment.

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3.7 Trained operator criteria
3.8 In the event of a fire
In the event of a fire, it is the operator’s decision to determine the
seriousness and hence the solution to the situation. The following is
given only as a guideline procedure:
1. Immediately tip the bale off the table and move the tractor and wrapper away
from the flammable material.
2. Shutdown the tractor and remove the key from the ignition.
3. Remove all hydraulic hosing and electrical looms from the machine.
4. With all connections removed, disengage the wrapper from the tractor.
5. Drive the tractor away from the wrapper.
6. Using a suitable fire extinguisher, attempt to put out the fire.
Age related requirements General requirements
18 +
The operator needs to be fully
trained in the use of this machine
and have a valid tractor driver’s
licence.
The operator must be in full
control of his/her senses and
must not be under the influence
of any alcohol or drugs,
prescribed or otherwise.
The operator must have read
and understood all aspects of the
operator manual in order to
operate, maintain and clean the
machine. Ideally, they should
also receive training from their
McHale Dealer.
It is only acceptable to have
more than one person in the
tractor cab, if it has a second
seat.
16 - 18
An operator between the age of 16
and 18 years old must have a
provisional licence and must be
accompanied by an experienced
driver/operator, at all times, even
during maintenance and cleaning!
< 16
Persons younger than 16 years of
age are not allowed to operate,
clean or carry out maintenance on
this machine, under any
circumstances!
WARNING: Fire prevention
It is recommended that the machine be kept reasonably clean and free
of build-ups of crop, lubricants, etc. This will help to reduce the risk of
fires.

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3.9 General safety warnings
It is important to be aware of the potential hazards associated with the operation of farm
machinery. Numerous research studies have shown that the majority of machinery-
related accidents occur as the result of human negligence, including taking shortcuts
to save time, lack of or improper maintenance, ignoring warnings, failing to read the
operator's manual, lack of or improper instruction and failure to follow safety rules.
Read and understand this operator manual before using the machine. If any of the
instructions appear unclear do not hesitate to contact your McHale dealer.
Only competent persons who have read and fully understood this manual are qualified
to operate this machine. The owner of this machine is obliged, by law, to ensure that
every operator understands all of the functions, controls, working processes and safety
warnings, before operating the machine. (See ‘Trained operator criteria’)
Safety devices
All safety devices such as guards, protection parts and safety controls must
be in place and in fully functioning condition. It is forbidden to operate this
machine with defective or incomplete safety devices.
Danger Zone
The ‘Danger Zone’ is the area around the rotating table (approx. 5 metres
radius from the rotating centre axis), 1 metre in front of the table and a
minimum of 10 metres at the back of the machine to allow for safe bale
discharge.
NOTE: ‘Danger Zone’ can vary in size
The operator must be aware of the ‘Danger Zone’ which can vary in size,
depending on operating conditions, i.e. hilly terrain.

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It is the operator’s responsibility to ensure that there is no person in the
‘Danger Zone’ while operating the machine, especially during start up.
Before repair or reassembly
Safe lifting gear of sufficient capacity must be used for machine assembly. All
chains and slings used must be in good condition.
Extreme caution is required when fitting or adjusting the mat frame or side tip
plate.
Before operation
Never operate farm machinery while under the influence of drugs or alcohol.
The physiological effects of drugs and alcohol impair performance and can
lead to operators taking risks or putting others at risk. This includes over-the-
counter cold/flu and allergy medications or prescription drugs that are not
recommended to be taken whilst driving a car or operating machinery.
The operator must ensure that the manufacturer’s instructions for attaching
and detaching the machine are followed. This includes the drawbar
attachment, the electric and hydraulic lines, in particular the lighting system.
The operator must ensure that all covers are closed and all safety devices are
in operating mode.
The operator must ensure that there is no person in the ‘Danger Zone’.
Always be familiar with the health and safety requirements that may be in
force in the country of use.
During operation
While operating this machine on hilly or sloping ground the operator must take
extra precautions, in particular the ‘Danger Zone’ is increased in such
conditions.
Adjust driving speed to suit ground conditions. Allow for mounted machines
reducing the front end weight of tractor.
Precaution must be taken when travelling over sloping or rough ground due to
the risk of overturning. Always travel at a speed suitable for the ground
conditions.
The operator must ensure that there is a minimum of 4 m clearance between
the machine and any obstacle above, in particular electrical high voltage lines.
Be careful when working with the cut & hold. Remember that the
accumulators are under pressure.
Avoid contact with the knife.
Do not attempt to clamp plastic film in the cut & hold mechanism.
Particular care must be taken, if the machine is left idle for any extended
period, to ensure that all sensors and safety features are working correctly.
The safety bar must always be used when working under a tipped table.

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Before travelling on public roads
The owner of this machine is obliged by law to ensure that every operator has
got a valid driving licence and is familiar with the road traffic regulations
relating to the country of use.
Always ensure that the electronic control box and oil supply are switched off.
Ensure lights are connected and working correctly. Bale damper must be
raised to comply with lighting regulations.
If plastic film is to be transported on the machine it must only be done so on
the holders provided and secured, if necessary.
Ensure the knife guard is closed on the cut and hold, to prevent injury.
Bale lift arm must be in the fully raised position (if fitted).
Transport lock must be fitted while travelling on the road. The machine is not
suitable for towing at speeds above 40 km/h.
Performing maintenance
Maintenance and repair work on the machine should always be carried out in
accordance with this manual.
Maintenance and repair work exceeding the content of this manual should
only be carried out by qualified persons or your McHale dealer.
When conducting maintenance work tie long hair behind your head. Do not
wear a necktie, necklace, scarf or loose clothing when you work near the
machine or moving parts. Rotating machinery parts can entangle loose
clothing, long hair or dangling jewellery faster than a victim can react. If these
items were to get caught, severe injury could result.
Before working on this machine or altering any setting, the operator must
ensure the following:
(a) The tractor has definitely stopped moving
(b) The hand brake is applied
(c) The engine is shut down
(d) The ignition key is removed
(e) Electronic power supply and control box is disconnected
(f) Hydraulic oil supply is switched off
*It is forbidden to open any safety guards or to carry out any work on the machine, unless
the above specified precautions have been carried out.
WARNING: Do not carry people or animals on the machine
The operator must ensure that no persons or animals are carried on the
machine at any time or are hidden under the machine (on the tractor
persons are only allowed to sit on the relevant seats).

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When conducting maintenance work always support the machine properly.
Where possible, lower the attachment or implement to the ground before you
work on the machine. If it is not possible to lower the machine or attachment
to the ground, always securely support the machine or attachment. Do not
work under a machine that is solely supported by a jack. Never support the
machine with props that may break or crumble under continuous load.
Tyres should be inspected for wear on a regular basis. Tyres should be
replaced before wear becomes excessive or after 10 years from the date of
manufacture, as indicated on the tyre. Care must be taken when handling
tyres. Tyres shall be inflated to the pressures indicated in this manual and on
the machine and never over inflated. Tyres shall only be inflated while on the
machine or in an appropriate safety cage.
Never disable any electrical safety circuits, tamper with safety devices or carry
out any unauthorised modification to the machine.
Replace any electrical or hydraulic devices immediately, at the first sign of
malfunction or failure, as these components affect the functionality,
sequencing and thus safety of operation. Never use a machine where a
malfunction exists! Contact your McHale dealer to achieve a solution. Always
think ‘Safety First’!
Avoid heating near pressurised fluid lines, as pressurised lines can be
accidentally damaged when heat goes beyond the immediate flame area.
Regular clean down is recommended in order to maintain the machine in a
safe and reliable working condition. McHale recommend that the machine be
blown down with an air line, as opposed to a pressure washer, due to the
dangers involved with pressure washing and to protect the overall paint work
on the machine. If, despite our advice, a pressure washer is used then take
extreme caution and operate from ground level only. Never climb onto any
part of the machine, while pressure washing, due to the fact that all metal
surfaces become extremely wet and slippery and always ensure that the
tractor has been shut down, with the ignition key removed.
During inspection
If on the rare occasion that it is necessary for an inspection to be carried out
within the ‘Danger Zone’ while the machine is running (extremely dangerous
and not recommended!), there shall be a fully trained and competent second
person operating both the tractor and machine controls. The tractor hand
brake shall be applied and the electronic control box shall be in manual mode.
The machine shall be on level ground with all guards closed. Communication
is key. The operator shall inform the inspector before any machine function is
activated. The inspector shall remain in the field of vision of the operator at all
times and inform the operator of their intended actions. If communication is
lost with the operator, or they move within 1.1 m of moving parts or parts that
have the potential to move, all tractor power shall be turned off immediately.

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Child safety on farms
All adults working or present on farms are required, by law, to do everything
reasonably practical to ensure the safety and health of children and young
people on the farm.
Children must be supervised at all times! Remember, farms are not
playgrounds!
Store farm machinery with safety & stability in mind.
Always exclude children from potentially dangerous areas (they will often get
into apparently inaccessible places). Do not allow them in farm yards on busy
days. Contractors should always be made aware of the presence of children.
 Never leave children alone in a tractor cab as they can interfere with controls and
many children have been killed falling from the door or rear window of a tractor.
Children under 16 years of age should never operate power-driven
machinery. Keys should be removed from vehicles and controls left in neutral.
Lower any implements or loaders to the ground and apply the hand brake.
Do not allow children to use bales of any description for playing. It is very easy
to fall from stacked bales resulting in serious injury, or fall between them
leading to suffocation. Make sure there is no evidence of children burrowing
under stacked bales.
Children under 16 should never handle chemicals. Always keep them in their
correct containers and securely stored out of sight under lock and key.
Keep matches in a safe place.
Danger of lightning strike
If there is a risk of lightning in the area, stop all work.
If there is a risk of lightning when travelling, find a safe place to pull over and
stop the tractor.
Do not leave the tractor cab or start work until the risk of lightning has passed.

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4
Specific safety warnings
4.1 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).
4.2 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.
Check hoses monthly for signs of leakage or wear. Use a piece of card when
checking for leaks. Fine jets of hydraulic fluid can penetrate the skin. Never
use your fingers or face to check for leaks. If in doubt always replace. The
recommended maximum working time of hoses should not exceed 5 years.
Only use exact specification McHale genuine replacement parts.
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.

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4.3 Noise level
The European directive 2003/10/EC 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.
4.4 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.
Equipment being refuelled should have its engine turned off before refuelling.
Personnel should be instructed on how to properly refuel equipment: do
periodic maintenance checks on the tank, pump, hose and nozzle; and abide
by safety rules, such as not smoking when around the refuelling area.