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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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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.
McHale 991 B Round Bale Wrapper Table of contents Introduction Product information Designated use of the machine Rear view General specifications Tractor specifications Machine specifications Tyre specifications Optional equipment* General safety Be aware of all safety information Follow all safety instructions...
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McHale 991 B Round Bale Wrapper Electronic control system Bale wrap computer (991 B, BC & BJS) Electronic control box (991 BE & BER) Electronic control box functions Available wrapping programs Electronic control box setup Electronic control box features Operator setup...
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.
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.
McHale 991 B Round Bale Wrapper 2.2 Rear view No. Machine function Cut and hold Rotating table Shearbolt unit Quick fit dispenser Manual levers (991 B) Spare film roll holders Bale support bobbin Bale detect sensor (if fitted) Lift arm...
McHale 991 B 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’ 1”) Height to top of rollers 1.25 m (4’...
Receiver and remote for static wrapping 500mm dispenser kit Allows 500mm plastic film rolls to be fitted *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...
& 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.
McHale 991 B 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)
McHale 991 B 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...
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.
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McHale 991 B 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 ...
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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 ...
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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 ...
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McHale 991 B 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.
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.
McHale 991 B 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.
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:...
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McHale 991 B Round Bale Wrapper Keep hands out of crush area (CST00019) Cable control valve controls (991 BC machines only) (CST00025) Keep hands out of the trap area (CST00026) Keep clear of rotating table (CST00028) Max table speed 30 rpm...
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McHale 991 B Round Bale Wrapper Keep clear of bale damper crush area (CST00048) Diagram of plastic film path through dispenser (CST00049) Bale damper skid adjustment (CST00050) Read instruction manual (CST00057) Fit transport bar to prevent bale lift arm from moving.
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McHale 991 B Round Bale Wrapper Bale damper drop speed adjustment (CST00061) Raise bale damper when lights are being used on the road. (See ‘Road traffic safety & operation’) (CST00063) Manual control valve controls (991 B machines only) (CST00064) 991 BJS joystick operating instructions...
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McHale 991 B Round Bale Wrapper Grease pin immediately after fitting the lift arm (CST00105) Do not dismantle. High pressure always. (CST000115) Check tyre pressure (CST00257) Dispenser height setting (CST00620) Tie down points (CST00901) Jacking points (CST00923)
McHale 991 B Round Bale Wrapper Keep clear of the bale lift arm and auto load paddle, as unexpected movement can occur (991 BE & BER machines only) (CST00961) 991 B series chassis plate 4.7 Machine lifting guidelines WARNING: Machine lifting Only use chains or strapping that are rated for a minimum load ...
McHale 991 B Round Bale Wrapper RHS front lift hook Front view LHS front lift hook RHS rear lift hook Rear view LHS rear lift hook 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.
McHale 991 B 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.
McHale 991 B 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.
McHale 991 B Round Bale Wrapper 5.3 Preventing unauthorised use To prevent unauthorised use, McHale recommend using the padlock and the locking device provided. Both items are stored in the tool box on the machine and should be fitted to the drawbar coupling when the machine is not in use.
McHale 991 B Round Bale Wrapper 5.4 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.
McHale 991 B Round Bale Wrapper Bale wrap computer Hoses and cable Electronic control box 5.5 Connecting the control box The control box is to be connected to a 12 V, 20 A power supply either using the supplied 12V socket or the battery power cable. 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.
McHale 991 B 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.
McHale 991 B 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, moisture and prolonged exposure to the sun.
McHale 991 B Round Bale Wrapper Manual controls (991 B, BC & BJS) The manual controls on the 991 B & BC consist of a four bank manually operated spool valve, operated directly by levers i.e. Direct Control (DC) or Cable Control (CC).
McHale 991 B Round Bale Wrapper 7.3 991 BJS controls The 991 BJS is fitted with a hydraulic servo joystick. To carry out maintenance under the table, the table must be locked in the upright position. The tap underneath the table must be closed (as in the picture below).
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McHale 991 B Round Bale Wrapper Description Table rotate forward Lift arm down, press switch C Table tip *Neutral Table rotate reverse Lift arm up, press switch C Cut and hold open Cut and hold close Operates lift arm *Neutral position (4) is when the joystick is let go completely, without any contact.
These are used individually or in combination to program, set/reset or select a function. The bale wrap computer is used to monitor and control a number of different McHale bale wrapping machines both manual and semi-automatic. It is very important that the correct program be selected to control the wrapping machine.
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McHale 991 B Round Bale Wrapper Selecting a program Unplug the bale wrap computer to switch it off Press and hold the “CAL” Button Switch on the computer Release the “CAL” Button The display shows the over speed alarm setting Press and release the “CAL”...
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McHale 991 B Round Bale Wrapper Automatic reset of the current number to zero normally occurs 3 seconds after the target number is reached. If additional wraps are added after the target number is reached, the current number will continue to advance.
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McHale 991 B Round Bale Wrapper Hold to cycle to the required digit Release all Program early warning alarm An early warning alarm can be programmed to sound from 1 to 9 wraps before the target number is reached. Depending on the setting, the alarm will sound long beeps for up to 8 wraps, short beeps for the final wrap, and then a continuous beep for three seconds.
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McHale 991 B Round Bale Wrapper Display a store total Press to select The fourth digit displays the current store designation for 2 seconds The current total for that store then displays for 5 seconds, then defaults to Channel 1...
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McHale 991 B Round Bale Wrapper Select the desired store total (A-H) Press and hold to reset Channel 3 - Part total When the bale wrap is complete, the part total is automatically advanced by 1. The part total can be reset at any time.
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McHale 991 B Round Bale Wrapper Display grand total Press to select Grand total displays for 5 seconds then defaults to channel 1 Channel 5 - Bale wrapping rate Displays the number of bales wrapped per hour. The time period over which the rate is average may be re-started at any time.
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McHale 991 B Round Bale Wrapper Channel 6 - Bale wrapping speed Displays instantaneous rpm of the bale wrapper at 3 second intervals in the range 10- 99 rpm. An overspeed alarm will sound if the rpm exceeds a pre-programmable limit.
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McHale 991 B Round Bale Wrapper The fourth digit flashes Hold to cycle to the required digit. Release all Total reset If for some reason the date in the instrument is corrupted or the display shows “PrOg” then the instrument must be totally reset.
McHale 991 B Round Bale Wrapper 8.2 Electronic control box (991 BE & BER) The electronic control box is the main interface between the operator and the machine. While the machine is in fully automatic mode, setting up is required before wrapping commences.
McHale 991 B Round Bale Wrapper 8.3 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.
991 BE, 991 BER Cut & hold at left side of 991 BE Standard o standard field operation the machine Not used on 991 B series/ Combi trailed oo 991 L series Not used on 991 B series/ Combi standard IL...
McHale 991 B Round Bale Wrapper 8.6 Electronic control box features 8.6.1 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...
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McHale 991 B Round Bale Wrapper No bale on load arm Second bale in carry position Bale on wrapper Working display (Screen 3a) Working display (Screen 3b) A solid left arrow beside BALE1 indicates there is a bale on the wrapper. A flashing left arrow beside BALE1 indicates wrapping has been interrupted and incomplete.
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McHale 991 B Round Bale Wrapper Press Enter (Button 3) to reset it Press the Down Arrow (Button 4) or ESC (Button 2) once to return to the working display View the day total bale counter Press the Up Arrow (Button 1) twice, from the working screen...
CAUTION: Select the correct wrapping sequence before using the machine The “Expert Series” Electronic Control Box is designed to control a number of different McHale wrapping machines, therefore, it is very important that the correct wrapping sequence be selected to suit the machine in use, before work begins.
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McHale 991 B Round Bale Wrapper Use the Up and Down Arrows (Buttons 1 & 4) to select a sequence, press Enter (Button 3) to save a new sequence/program. 8.7.3 Film sensor The film sensor monitors the passage of film through the dispenser rollers. If the roll empties or the film breaks, “FILM BREAK”...
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McHale 991 B Round Bale Wrapper Wired remote Whenever the wired remote is being used, select IR/WIRED in the Remote Type Menu as above. Connect the wired remote to the serial port on the electronic control box and select Auto mode. The cycle can be started using the Auto Start button. The Emergency Stop button will stop the cycle at any time.
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McHale 991 B Round Bale Wrapper Radio remote Whenever a radio remote is being used for the first time, the remote frequency code must be “learned” by the electronic control box. Select “RF LEARN” in the Remote Type Menu and connect the receiver to the serial port on the electronic control box and select Auto mode (Button 13).
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McHale 991 B Round Bale Wrapper NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
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McHale 991 B Round Bale Wrapper Use the Up and Down Arrows (Buttons 1 & 4) to select On/Off Press Enter (Button 3) to save the new setting 8.7.7 Auto load setup The Auto load feature, when enabled in the operator menu allows for automatic loading of the bale.
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Auto mode. 8.7.8 Technician menu The technician menu is reserved for McHale engineers only. A pin code needs to be entered to access the menu.
McHale 991 B 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.
McHale 991 B Round Bale Wrapper 9.2 Loading plastic film 1. Push back the handle until the dispenser latches open. 2. When removing an old roll, push upwards to latch the top roll holder in the ‘up’ position. Then remove the old roll core and dispose of it responsibly.
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McHale 991 B Round Bale Wrapper 5. Pull approximately 1.5 m of film away from the dispenser and make a knot at the end of the plastic film. Slide the knotted end of the film in the slot provided, as shown. Never attempt to clamp plastic film in the cut &...
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.
Keep all persons outside of the ‘Danger Zone’ during all machine operations! (See ‘Danger Zone’) The electronic control box (if fitted) should be set to program “O” for a 991 B series machine. The table must be in the correct starting position. (See ‘Electronic control box...
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McHale 991 B 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.
Park the machine on level ground with access for the loader, as required. Ensure the machine cannot move. Load the bale onto the wrapper table using a McHale round bale handler. The wrapper should now go through a sequence either worked manually or automatically, on electronic machines.
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McHale 991 B Round Bale Wrapper After a few revolutions the cut & hold releases the plastic film. The table slows down two revolutions before the required number of revolutions is reached. The table stops rotating when the required number of rotations is reached.
McHale 991 B Round Bale Wrapper Road traffic safety & operation 10.1 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 to go on to a public roadway, always think and practice safety!
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McHale 991 B Round Bale Wrapper Transport lock, unlocked Transport lock in the locked position...
McHale 991 B 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. The following chapter gives details of how to go through the various adjustments.
McHale 991 B Round Bale Wrapper 11.2 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. Ensure the machine is securely chocked and the dispenser is well supported...
McHale 991 B Round Bale Wrapper Replace the M8 shearbolt ensuring it is in good condition Replace the drive chain using the extension piece supplied in the kit to correct the length of required chain Adjust the chain (See ‘Dispenser height’)
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McHale 991 B Round Bale Wrapper 11.5.1 Table stop position magnet (991 BE & 991 BER) If the table does not stop in the correct position in line with the chassis, it is possible to move the magnet that controls the stop position. However, it must be checked first that the machine is operating at the correct speed, has a bale on the table and the plastic film is attached, as all of these factors will have a bearing on where the machine stops.
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McHale 991 B Round Bale Wrapper The magnet may be adjusted as follows: Tip up the table and fit the safety bar Identify the magnet to be changed. There are two set of magnets near the outside of the table. The magnets that require adjusting are positioned nearest the cut &...
McHale 991 B Round Bale Wrapper 11.6 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.
McHale 991 B Round Bale Wrapper 11.7 Bale damper drop speed The drop speed of the bale damper may be adjusted to allow for the great variation in bale weights. The bale should not be allowed to drop too quickly so as not to cause any machine damage.
McHale 991 B Round Bale Wrapper 11.9 Gearbox cross shaft roll pin replacement As a secondary overload protection device, the gearbox cross shaft is protected by roll pins which will shear, when overloaded. This mainly applies to older machines as newer machines have an additional keyway which prevents this from happening.
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McHale 991 B Round Bale Wrapper 11.10.1 To increase accumulator pressure Remove the blanking cap on the hydraulic cylinder Remove the cut & hold feed pipe (and adaptor) and fit it to the open port Operate the cut and hold to prime the system. It only needs a small amount of oil to prime it back up.
McHale 991 B Round Bale Wrapper 11.11 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.
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McHale 991 B Round Bale Wrapper 11.11.2 Table roller drive chain After a period of time, it may become necessary to readjust the table roller drive chain. This adjustment may also have to be made if a 500 mm plastic film conversion is carried out.
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 &...
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McHale 991 B Round Bale Wrapper First 5 working hours Check all nuts and bolts for tightness and tighten, if necessary 2.* Grease bale lift arm hydraulic cylinder ends Every day Grease bale lift arm hinges 2.* Grease bale lift arm hydraulic cylinder ends...
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McHale 991 B 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...
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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.
McHale 991 B Round Bale Wrapper 12.2 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. These values are for general use only. Check tightness of all fasteners periodically.
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.
McHale 991 B Round Bale Wrapper Troubleshooting 14.1 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.
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McHale 991 B Round Bale Wrapper Symptom Reason Solution Table stopping in the Magnet settings Reset magnets wrong position (Electronic Not starting in the correct Start with cut & hold at the machines) position rear of the machine Slow down setting in the...
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McHale 991 B Round Bale Wrapper 14.1.3 Damper Symptom Reason Solution Damper slow or fails to Restrictor tap set too tight Adjust restrictor come down Damper rising during High hydraulic back Fit free flow return wrapping cycle pressure Faulty quick release...
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McHale 991 B Round Bale Wrapper Symptom Reason Solution “LOW BATT” appears on Supply voltage too low Check battery and the control box charging system Only half the number of One set of magnets Replace the missing set of actual rotations is...
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.
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McHale 991 B 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.
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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.
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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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