McHale 991 Operator's Instruction Manual
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McHale 991 Operator's Instruction Manual

High speed round bale wrapper
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991 High Speed
Round Bale Wrapper
Operator Instruction Manual
Issue 5
McHale
Ballinrobe
Co. Mayo,
F31 K138 Ireland
Tel: +353 94 9520300
I.S. EN ISO 9001:2015
Email: sales@mchale.net
Website: www.mchale.net
CLT00218_5.01

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  • Page 1 991 High Speed Round Bale Wrapper Operator Instruction Manual Issue 5 McHale Ballinrobe Co. Mayo, F31 K138 Ireland Tel: +353 94 9520300 I.S. EN ISO 9001:2015 Email: sales@mchale.net Website: www.mchale.net CLT00218_5.01...
  • Page 2 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.
  • Page 3 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.

  • Page 4: Table Of Contents

    McHale 991 High Speed Round Bale Wrapper Table of contents Introduction Product information Designated use of the machine Front view General specifications Tractor specifications Machine specifications Tyre specifications Optional equipment* General safety Be aware of all safety information Follow all safety instructions...
  • Page 5 McHale 991 High Speed Round Bale Wrapper Electronic control system Electronic control box Electronic control box functions Available wrapping programs Electronic control box setup Electronic control box features Counters Wrapper operation Preparing the machine for wrapping Loading plastic film Dispenser gears...

  • Page 6: Introduction

    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.

  • Page 7: Product Information

    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.

  • Page 8: Front View

    McHale 991 High Speed Round Bale Wrapper 2.2 Front view No. Machine function Side-tip damper Lift arm Bale support bobbin Rotating table Cut and hold Bale detect sensor 2 x quick fit dispensers Spare film roll holders Shearbolt unit Road lights...

  • Page 9: General Specifications

    McHale 991 High Speed Round Bale Wrapper 2.3 General specifications Units are given in both metric and UK imperial values, with the latter shown in brackets. Transport length 5.7 m (18’ 8”) Transport width 2.45 m (8’ 0”) Transport height 2.46 m (8’...

  • Page 10: Tyre Specifications

    Allows remote control of the machine Wired remote Remote hand piece *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...

  • Page 11: General Safety

    & 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.

  • Page 12: Store All Items Carefully

    McHale 991 High Speed Round Bale Wrapper 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)

  • Page 13: Trained Operator Criteria

    McHale 991 High Speed Round Bale Wrapper 3.7 Trained operator criteria Age related requirements General requirements The operator needs to be fully The operator must be in full  trained in the use of this machine control of his/her senses and 18 + and have a valid tractor driver’s...

  • Page 14: General Safety Warnings

    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.
  • Page 15 McHale 991 High Speed Round Bale Wrapper 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 ...
  • Page 16 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 ...
  • Page 17 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 ...
  • Page 18 McHale 991 High Speed Round Bale Wrapper 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.

  • Page 19: Specific Safety Warnings

    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.

  • Page 20: Noise Level

    McHale 991 High Speed Round Bale Wrapper 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.

  • Page 21: Safety Instruction Decal Locations

    McHale 991 High Speed Round Bale Wrapper 4.5 Safety instruction decal locations...

  • Page 22: Safety Warnings & Instructions Explained

    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:...
  • Page 23 McHale 991 High Speed Round Bale Wrapper Keep hands out of crush area (CST00019) Keep hands out of the trap area (CST00026) Keep clear of rotating table (CST00028) Max table speed 30 rpm (CST00031) Lifting hook location (CST00032) Keep clear of bale damper crush area...
  • Page 24 McHale 991 High Speed Round Bale Wrapper Diagram of plastic film path through dispenser (CST00049) Bale damper skid adjustment (CST00050) Read instruction manual (CST00057) Support table before working under it Refer to the instruction manual (CST00059) Grease daily (CST00060) Bale damper drop speed adjustment...
  • Page 25 McHale 991 High Speed Round Bale Wrapper Raise bale damper when lights are being used on the road. (See ‘Road traffic safety & operation’) (CST00063) Grease pin immediately after fitting the lift arm (CST00105) Do not dismantle High pressure always (CST000115) Diagram of plastic film path through rear dispenser.
  • Page 26 McHale 991 High Speed Round Bale Wrapper Dispenser height setting, when wrapping with two rolls of film (CST00193) Check tyre pressure (CST00257) Tie down points (CST00901) Jacking points (CST00923) Keep clear of the bale lift arm and auto load paddle, as...

  • Page 27: Machine Lifting Guidelines

    McHale 991 High Speed Round Bale Wrapper 4.7 Machine lifting guidelines WARNING: Machine lifting Only use chains or strapping that are rated for a minimum load  of 0.75 tonnes (750 kg) per chain or strap when using the four...

  • Page 28: Jacking Guidelines

    McHale 991 High Speed Round Bale Wrapper 4.8 Jacking guidelines Jacking points are indicated on the machine with decals. Ensure the machine is on flat solid ground and attached to a tractor. Apply the tractor hand brake, switch off the tractor and remove the key, disconnect the hydraulics and PTO.

  • Page 29: Tractor Requirements & Preparation

    McHale 991 High Speed Round Bale Wrapper Tractor requirements & preparation 5.1 Tractor requirements The minimum recommended size of tractor for operating the machine comfortably on flat ground would be approximately 35 kW. On hilly ground or difficult conditions, an additional 10 to 15 kW is advisable.

  • Page 30: Hydraulic Spool Valve Setup

    McHale 991 High Speed Round Bale Wrapper 5.2 Hydraulic spool valve setup The wrapper hydraulic valve must be set up in accordance with the type of hydraulic system on the tractor, that is being used. Check the tractor manual or with your dealer if you are unsure of which system is used on the tractor.

  • Page 31: Attaching The Wrapper

    McHale 991 High Speed Round Bale Wrapper 5.3 Attaching the wrapper Reverse the tractor up to the wrapper, lining up the tractor hitch with the wrapper hitch eye. Fit the tow pin to the hitch ensuring it is secure, by inserting a linch pin.

  • Page 32: Connecting The Control Box

    McHale 991 High Speed Round Bale Wrapper 5.4 Connecting the control box 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’).

  • Page 33: Bale & Plastic Film Requirements

    McHale 991 High Speed Round Bale Wrapper Bale & plastic film requirements 6.1 Bale requirements The bales to be wrapped should be well shaped, dense and of suitable quality for making silage. Substandard material will not produce good quality silage regardless of how well the bale is wrapped.

  • Page 34: Care Of The Film Roll

    McHale 991 High Speed Round Bale Wrapper ENVIRONMENT: Recycling of film roll Respect the environment! Never throw away or burn the waste film or the core tube. Always take waste materials to a recycling centre. 6.3 Care of the film roll The film roll should be protected from damage and moisture and prolonged exposure to the sun.
  • Page 35 McHale 991 High Speed Round Bale Wrapper This page is intentionally left blank.

  • Page 36: Electronic Control System

    McHale 991 High Speed Round Bale Wrapper Electronic control system (Software Version EXS300-025) 7.1 Electronic control box The electronic control box is the main interface between the operator and the machine. When the machine is in fully automatic mode, settings must be selected before wrapping commences.

  • Page 37: Electronic Control Box Functions

    McHale 991 High Speed Round Bale Wrapper 7.2 Electronic control box functions Function Display Up Press and hold ESC to reset the current wrap count in manual mode Enter Display Down Emergency Stop Display Screen Table lower If Continuous is set to On then press button 7 during wrapping to prevent automatic tipping of individual bales.

  • Page 38: Available Wrapping Programs

    McHale 991 High Speed Round Bale Wrapper 7.3 Available wrapping programs The following list shows the list of wrapping programs that are available. The items that are greyed out are not used/available on this machine. (See ‘Wrapping sequence/ program’) Program...

  • Page 39: Electronic Control Box Setup

    McHale 991 High Speed Round Bale Wrapper 7.4 Electronic control box setup...

  • Page 40: Electronic Control Box Features

    McHale 991 High Speed Round Bale Wrapper 7.5 Electronic control box features 7.5.1 Working display When the electronic control box is first switched on it displays “Expert Series”, with the software version number beneath. NOTE: Continuous Cycle and Auto Load sequence “ON” settings...

  • Page 41: Counters

    McHale 991 High Speed Round Bale Wrapper Target no. Man/Auto Current wrap count of wraps Voltage Table speed Working display (Screen 3) No bale on load arm Bale on wrapper Second bale in carry position Working display (Screen 4a) Working display (Screen 4b) A solid left arrow beside BALE1 indicates there is a bale on the wrapper.
  • Page 42 McHale 991 High Speed Round Bale Wrapper Select & set a bale counter (A-J) From the working display, press the Display Down (Button 4) once to select To Change Total Press Enter (Button 3) to move to the To Select Total “X” display Select desired counter (A -J) using the Up and Down Arrows (Buttons 1 &...
  • Page 43 McHale 991 High Speed Round Bale Wrapper 7.6.2 Liftarm position The lift arm must be down before a cycle can be started. If not then a 'Liftarm Position' warning is displayed. 7.6.3 To set wraps To change the desired/target number of film wraps:...
  • Page 44 McHale wrapping machines, therefore, it is very important that the correct wrapping sequence be selected to suit the machine in use, before work begins. It is crucial that the correct wrapping sequence/program is selected for the 991 High Speed. (See ‘Available wrapping programs’)
  • Page 45 McHale 991 High Speed Round Bale Wrapper To go back to normal twin dispenser operation, Button 18 must be held pressed for 3 seconds until “2 rolls film” is displayed on the screen. The dispenser height must be returned to its lowest position (See ‘Dispenser...
  • Page 46 McHale 991 High Speed Round Bale Wrapper Infrared remote Whenever an Infrared remote type is being used, select IR/WIRED in the Remote Type Menu, as above. Connect the receiver to the serial port on the electronic control box and select Auto mode (Button 13). The cycle can be started by pointing the infrared remote at the receiver and pressing the Auto Start Button.
  • Page 47 McHale 991 High Speed Round Bale Wrapper WARNING: Radio remotes have a very long range, do not accidentally press any buttons when not near the machine There is a very long range with radio remotes (approx. 200 metres in the line of sight), so care must be taken not to accidentally press any buttons even when not near the machine.
  • Page 48 McHale 991 High Speed Round Bale Wrapper Continuous cycle The Continuous Cycle, when enabled, allows the wrapping machine to complete the wrapping cycle without waiting for the operator to press Table Tip (Button 8) to start the tipping part of the cycle. Every time the electronic control box is switched on, it asks the operator to press Enter (Button 3) to confirm that the Continuous Cycle is required.
  • Page 49 Auto mode. 7.6.5 Technician menu The technician menu is reserved for McHale engineers only. A pin code needs to be entered to access the menu.

  • Page 50: Wrapper Operation

    McHale 991 High Speed Round Bale Wrapper Wrapper operation WARNING: Keep out of the ‘Danger Zone’ Keep all persons outside of the ‘Danger Zone’ during all machine operations! (See ‘Danger Zone’) ENVIRONMENT: Recycling of the plastic film Respect the environment! Never dump or burn waste plastic film. It’s toxic! Always take waste materials to a recycling centre.

  • Page 51: Loading Plastic Film

    McHale 991 High Speed Round Bale Wrapper 8.2 Loading plastic film 1. Push back the handle until the dispenser latches open. (Upper dispenser only) 2. Pull back the handle until the dispenser latches open. (Lower dispenser only) 3. When removing an old roll, push upwards to latch the top roll holder in the ‘up’...
  • Page 52 McHale 991 High Speed Round Bale Wrapper 5. Thread the film through the dispenser Upper dispenser threading path rollers, as per the threading diagrams for the upper or lower dispenser. Lower dispenser threading path 6. Pull approximately 1.5 m of film away from the dispenser and make a knot at the end of the plastic film.
  • Page 53 McHale 991 High Speed Round Bale Wrapper WARNING: Do not clamp film in the ‘cut & hold’ mechanism Do not attempt to clamp plastic film in the ‘cut & hold’ mechanism as this action may result in serious injury! CAUTION: Use protective gloves Use protective gloves for any manual work in this area! Beware of sharp knife edges.

  • Page 54: Dispenser Gears

    The dispenser rollers are set for a standard film stretch of 70%. Optional sets of dispenser gears for both 55% and 64% film stretch are available from your McHale dealer. One kit (A) is necessary for each dispenser on the machine.

  • Page 55: Side-Tip Bale Damper

    McHale 991 High Speed Round Bale Wrapper 8.4 Side-tip bale damper The 991 High Speed may be used in conjunction with a side-tip bale damper instead of the standard bale damper. The side-tip bale damper may be used as a standard bale damper or with one adjustment to enable it to tip the bales on their ends.
  • Page 56 McHale 991 High Speed Round Bale Wrapper Follow the procedure below: Ensure the bale lift arm is lowered to the ground. Drive the tractor up beside the bale to be wrapped. It will take practice to line up the bale correctly with the wrapper. Ensure the lift arm goes under the bale.

  • Page 57: Road Traffic Safety & Operation

    McHale 991 High Speed Round Bale Wrapper Road traffic safety & operation 9.1 Before travelling on any public roadway WARNING: Complete a full inspection before travelling on the road Ensure that a full inspection is completed every time before attempting...

  • Page 58: Field Operation & Wrapper Adjustments

    McHale 991 High Speed Round Bale Wrapper Field operation & wrapper 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.

  • Page 59: Dispenser Height

    McHale 991 High Speed Round Bale Wrapper 10.2 Dispenser height The plastic film needs to be applied around the centre of the bale, to ensure optimum coverage. The dispenser may need to be adjusted up or down, as necessary. The dispenser post height is adjustable using the ratchet link When wrapping a 1,200 to 1,250 mm diameter bale with two rolls of film, the dispenser post must be set in its lowest position.

  • Page 60: Adjusting Table Magnets

    McHale 991 High Speed Round Bale Wrapper 1 & 3 1 & 3 1 & 3 1 & 3 10.4 Adjusting table magnets If the table does not stop or index to the loading position, it is possible to modify the position of the relevant magnets to rectify this.
  • Page 61 McHale 991 High Speed Round Bale Wrapper Remove the table safety bar and lower the table back down Test the machine in automatic mode to see if it is stopping correctly, if it is not re-adjust 10.4.2 Table load position magnet If the table does not start in the correct position, in line with the chassis and with the cut &...
  • Page 62 McHale 991 High Speed Round Bale Wrapper 10.4.3 Table down magnet The table down magnet does not normally require adjustment. However, as it is used to signal the table to start indexing to the loading position, it may need to be re-set.

  • Page 63: Bale Damper Lift Height

    McHale 991 High Speed Round Bale Wrapper 10.5 Bale damper lift height The transition between the bale being tipped off the table and onto the bale mat must be gentle. To achieve this, the end of the operating cylinder can be adjusted. Do not carry out this procedure with a bale on the wrapper! Raise up the bale damper and support it securely.

  • Page 64: Gearbox Cross Shaft Roll Pin Replacement

    McHale 991 High Speed Round Bale Wrapper 10.7 Table drive roller shearbolt replacement There is a shearbolt fitted to the driven table roller sprocket to prevent overloading of the table rollers. If it is broken, it may be replaced as follows:...

  • Page 65: Cut & Hold Accumulator Pressure

    If for whatever reason the pressure drops, it will prime again the next time the cut and hold is closed. If the 991 High Speed is used on a tractor with high oil pressure and is then changed to a tractor with a lower oil pressure then the accumulator may need to be discharged if the cut and hold is not closing fully.

  • Page 66: Chain Adjustments

    McHale 991 High Speed Round Bale Wrapper 10.10 Chain adjustments 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.
  • Page 67 McHale 991 High Speed Round Bale Wrapper  10.10.2 Table roller drive chain After a period of time, it may become necessary to readjust the table roller drive chain. To adjust go through the following procedure: Remove the chain guard by undoing the two handwheels Loosen the 4 x M16 nuts and bolts holding on the bearings Adjust the roller using the 2 x M10 adjuster setscrews on each end of the roller.

  • Page 68: Machine Maintenance

    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’! WARNING: Wear proper safety equipment &...
  • Page 69 McHale 991 High Speed Round Bale Wrapper Every day Grease bale lift arm hinges 2.* Grease bale lift arm hydraulic cylinder ends Grease sub chassis pivots Grease table tip hydraulic cylinder ends Grease bale damper hinge pivots Grease bale damper hydraulic cylinder ends...
  • Page 70 McHale 991 High Speed Round Bale Wrapper Every week Grease table roller bearings Grease cross shaft bearing Grease dispenser top coil roller shafts Grease cut and hold plunger Grease bale damper side-tip latch Every month Grease parking jack...
  • Page 71 Carefully clean all machine sections, inside and out. Dirt and foreign objects are likely to draw moisture and cause rusting of steel components. 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.
  • Page 72 McHale 991 High Speed Round Bale Wrapper WARNING: Inspections in the ‘Danger Zone’ with the machine running, shall only occur with a trained operator at the controls Entering the ‘Danger Zone’ while the machine is running is not recommended. If it is to be carried out, a fully trained operator shall be at the controls.

  • Page 73: Tightening Torque Values

    McHale 991 High Speed Round Bale Wrapper 11.2 Tightening torque values It is important that the correct torques for fasteners are adhered to. Below are tables of recommended torques for these. These are to be used unless torques are otherwise specified.

  • Page 74: Storage

    Carefully clean all machine sections, inside and out. Dirt and foreign objects  are likely to draw moisture and cause rusting of steel components. 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.

  • Page 75: Troubleshooting

    McHale 991 High Speed Round Bale Wrapper Troubleshooting 13.1 Troubleshooting overview This section has been compiled by McHale service personnel in conjunction with McHale importers and dealers. It outlines some common problems which can occur and acts as a quick reference section or check list to resolve the problem.
  • Page 76 McHale 991 High Speed Round Bale Wrapper Symptom Reason Solution Machine tips bale but does Tip sensor faulty Locate and replace not reset to load Magnet broken Locate and replace 13.1.2 Plastic film Symptom Reason Solution Plastic film splitting as bale...
  • Page 77 McHale 991 High Speed Round Bale Wrapper Symptom Reason Solution Cut & hold leaks back Seals weak in the gearbox Replace seals slowly Loose hydraulic fitting on Tighten hydraulic fitting gearbox Cut & hold and tip-up Tractor pressure too low...
  • Page 78 McHale 991 High Speed Round Bale Wrapper 13.1.7 Remote control Symptom Reason Solution Remote control receiver Not connected properly Check on the rear of the not accepting a signal control box Batteries exhausted on a Replace the batteries handpiece Not pressing the Start...

  • Page 79: Certification & Warranty

    The PDI (pre-delivery inspection) form that is filled out on the commissioning of every new machine, should also be used during the transfer of ownership of a McHale machine. The same check list must be completed and any areas requiring attention addressed before the re-sale of the machine should occur.
  • Page 80 McHale 991 High Speed Round Bale Wrapper Declaration of Conformity DECLARATION OF CONFORMITY We hereby certify that the machinery stipulated below complies with all the relevant provisions of the EC Machinery Directive 2006/42/EC and the national laws and regulations adopting this directive.
  • Page 81 McHale 991 High Speed Round Bale Wrapper Pre-Delivery Inspection Form...
  • Page 82 McHale warranty system. These conditions are subject to the following exceptions: Parts of the machine which are not of McHale manufacture, such as tyres, PTO  shafts, slip clutches, hydraulic cylinders, etc. are not covered by this Limited Warranty, but are subject to the warranty of the original manufacturer.
  • Page 83 A printed version of the PDI form has been signed and dated by the original retail  purchaser. This copy is to be stored by the dealer and made available to McHale when requested. The warranty claim is submitted using the McHale online claims system.

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