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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 991B Round Bale Wrapper Table of Contents Introduction Product Information Designated use of the machine Front view General dimensions & specifications Tractor attachment Machine specifications General Safety Be aware of all safety information Follow all safety instructions Store all items carefully...
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Wrapper Operation Preparing the machine for wrapping Loading plastic film Side tip bale damper Wrapping behind the tractor (991B series) Wrapping behind the tractor (991 BJS) Wrapping at the stack with remote control (991 BER) Road Traffic Safety & Operation 10.1...
McHale 991B Round Bale Wrapper Introduction The McHale 991B Round Bale Wrapper 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.
McHale 991B Round Bale Wrapper Product Information The McHale 991B 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.
McHale 991B Round Bale Wrapper 2.2 Front view No. Machine Function Quick Fit Dispenser Manual Levers (991 B) Shear Bolt Unit Bale Support Bobbin Rotating Table Bale Support Bobbin Side Tip Damper Road Lights Cut and Hold...
McHale 991B Round Bale Wrapper 2.3 General dimensions & 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’...
If safety decals are damaged or missing due to wear and tear or component replacement, ensure that they are replaced by genuine McHale decals. Refer to the Decals Section in this manual (or spare parts book provided) to see the spare part codes for the relevant decals, which are available from your McHale dealer.
McHale 991B Round Bale Wrapper 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. 3.3 Store all items carefully Store all attachments such as films rolls and any other stored items in a secure and safe manner so as to prevent items from falling.
3.8 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.
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McHale 991B Round Bale Wrapper Before Operation 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”...
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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 wear a necktie, necklace, scarf or loose clothing when you work near the machine or moving parts.
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.
The noise level at field work may differ according to the tractor, ground, crops and other environmental conditions. In normal conditions, whilst driving the McHale 991B, the noise level to the driver’s ear does not exceed 70 dB (A) with the rear screen of the tractor cabin open.
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 McHale 991B are displayed with their meanings below:...
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McHale 991B Round Bale Wrapper Keep hands out of crush area (CST00019) Check wheel nuts daily (CST00020) Cable control valve controls (CST00025) Keep hands out of the trap area (CST00026) Keep clear of rotating table (CST00028) Max table speed 30 R.P.M.
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McHale 991B Round Bale Wrapper Lifting hook location (CST00032) Keep clear of bale damper crush area (CST00048) Diagram of plastic film path through dispenser (CST00049) Bale damper skid adjustment (CST00050) Do not dismantle High pressure always (CST00056) Read instruction manual...
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McHale 991B Round Bale Wrapper Check tyre pressure (CST00058) Support table before working under it Refer to the instruction manual (CST00059) Grease daily (CST00060) Bale damper drop speed adjustment (CST00061) Dispenser height setting (CST00062)
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McHale 991B Round Bale Wrapper Raise bale damper when lights are being used on the road. Refer to Section “Road Traffic Safety & Operation” on page 61. (CST00063) Manual control valve controls (CST00064) 991 BJS joystick operating instructions (CST00065) Lock tap before carrying out maintenance on table...
McHale 991B Round Bale Wrapper 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 of 0.75 tonnes (750 kg) per chain or strap when using the four...
Pin hitch with pin as supplied with tractor accessories Two 1/2” female quick releases for hydraulic power supply. The return line must be a freeflow to the tank (check with a McHale dealer for details). One 12V electrical supply One 7 pin lighting socket...
McHale 991B 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 991B 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.
McHale 991B Round Bale Wrapper Figure 5.a - Bale Wrap Computer Figure 5.b - Electronic Control Box Figure 5.c - Hoses and cable 5.4 Connecting the control box The control box is to be connected to a 12 V / 20 Amp power supply either using the supplied euro socket or the battery power cable.
McHale 991B 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 991B Round Bale Wrapper ENVIRONMENT: Recycling of film roll Respect the environment! Never throw away or burn the waste film and 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.
McHale 991B Round Bale Wrapper Manual Controls (991 B & BC) 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 991B 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.
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McHale 991B Round Bale Wrapper Cut and hold open Cut and hold close Operates lift arm Figure 7.a - Joystick unlocked Figure 7.b - Joystick locked Always apply the joystick lock and remove the key from the tractor before carrying out...
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 991B Round Bale Wrapper 8.1.1 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 991B Round Bale Wrapper 8.1.3 Channel 1 - Current/Target Wraps Display The left hand section shows the current number of wraps and the right hand section shows the target number of wraps. When the current number = Target number, the alarm will sound for 2 seconds and the display will flash.
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McHale 991B Round Bale Wrapper Hold to cycle to the required digit then release, otherwise press once... The fourth digit flashes 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.
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McHale 991B Round Bale Wrapper Hold to cycle to the required digit Release all 8.1.4 Channel 2 - Store Totals (A-H) When bale wrap is complete, one of eight pre-selected memory store totals A, B, C, D, E, F, G or H, is automatically advanced by 1. Store totals can be reset individually.
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McHale 991B Round Bale Wrapper Reset a Store Total Press to select Select the desired store total (A-H) Press and hold to reset 8.1.5 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 991B Round Bale Wrapper Press and hold to reset 8.1.6 Channel 4 - Grand Total When the bale wrap is complete, the grand total is automatically advanced by 1. The grand total cannot be reset. Display Grand Total Press to select...
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McHale 991B Round Bale Wrapper Reset Timing Period Press to select Press and hold 8.1.8 Channel 6 - Bale Wrapping Speed Displays instantaneous r.p.m. of the bale wrapper at 3 second intervals in the range 10-99 r.p.m. An overspeed alarm will sound if the r.p.m exceeds a pre-programmable limit.
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McHale 991B Round Bale Wrapper The third digit flashes Hold to cycle to the desired digit, then release, otherwise press once... The fourth digit flashes Hold to cycle to the required digit. Release all 8.1.10 Total Reset If for some reason the date in the instrument is corrupted or the display shows “PrOg”...
McHale 991B Round Bale Wrapper 8.2 Electronic Control Box (991 BE & 991 BER) The Electronic Control box is the main interface between the operator and the machine. While the machine is fully automatic mode, setting up is required before wrapping commences.
McHale 991B Round Bale Wrapper 8.3 Electronic Control Box Functions Function Display Up ESC, i.e. return to the working screen Enter Display Down Stop Display Screen Table tip (In Automatic Mode, it starts the tipping part of the cycle) Table lower Cut &...
McHale 991B Round Bale Wrapper 8.4 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. Program Description Table start position 991 BE, 991 BER Cut &...
McHale 991B 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 991B 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 &...
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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 991B Round Bale Wrapper It is crucial that the correct wrapping sequence/program is selected for the 991B. Please refer to “Available wrapping programs” on page 46 to see which sequence/ program applies to this machine. To change the wrapping sequence/program:...
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McHale 991B Round Bale Wrapper Display Contrast Extremes of temperature may affect the contrast of the display which is adjustable from the contrast menu. To adjust the contrast: Press the Down Arrow (Button 4) three times Press Enter (Button 3) Press the Down Arrow (Button 4) three times and press Enter Use the Up and Down Arrows (Buttons 1 &...
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McHale 991B 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 991B Round Bale Wrapper Starts Auto cycle/ Table Starts Auto tip reverse rotate Table forward rotate Emergency Stop Table up Table down Open cut & Close cut & hold hold Figure 8.e - Radio Receiver Figure 8.f - Radio Remote...
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Enter (Button 3) to confirm that the Auto Load Cycle is required. 8.6.6 Technician Menu The technician menu is reserved for McHale engineers only. A pin code needs to be entered to access the menu.
McHale 991B 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” on page 14. 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 991B Round Bale Wrapper 9.2 Loading plastic film Push back the handle until the dispenser latches open. 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.
Keep all persons outside of the “Danger Zone” during all machine operations! See “Danger Zone” on page 14. The electronic control box (if fitted) should be set to program “O” for a 991B series machine. The table must be in the correct starting position. Refer to “Electronic Control Box Functions”...
McHale 991B Round Bale Wrapper The table starts rotating and plastic film is applied to the bale. After a few revolutions the plastic is released out of the cut & hold. The table slows down two revolutions before the required number of revolutions is reached (electronic control).
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Park 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.
McHale 991B 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 991B Round Bale Wrapper The following should be inspected every time, before travelling on a public road: Ensure that the tyres are set to the correct pressure as per safety decal and according to the specifications, as outlined on “General dimensions &...
McHale 991B 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 991B Round Bale Wrapper Ensure the machine is securely chocked and the dispenser is well supported Loosen the 6 x M16 nyloc nuts on the U-bolts, but do not remove! Slide the dispenser up or down, as required Tighten the 6 x M16 nyloc nuts Remove the support and chocks Figure 11.b - Dispenser height adjustment...
McHale 991B Round Bale Wrapper Adjust the chain as described in Section 11.2 Replace the chain guard and tighten the 2 x handwheels Adjust the electronic control box to the correct number of wraps 11.4 Table rollers/belts The wrapper normally leaves the factory with rollers set to the correct width for a 1,250 diameter bale.
McHale 991B Round Bale Wrapper Remove table safety bar and lower table back down Test the machine in automatic mode to see if it is stopping correctly, if it is not re-adjust NOTE: BJS machines are to be adjusted manually For BJS machines the stop position must be manually adjusted before tipping.
McHale 991B Round Bale Wrapper Figure 11.g - Tip up table & fit safety bar Figure 11.h - Table load position magnet 11.7 Table down magnet (991 B series) 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.
McHale 991B Round Bale Wrapper 11.8 Bale damper lift height (991 B series) 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 991B Round Bale Wrapper 11.10 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: Remove the two handwheels and chainguard over the table roller drive chain...
McHale 991B Round Bale Wrapper Figure 11.o - Gearbox cross shaft roll pin replacement 11.12 Cut & hold accumulator pressure The cut & hold is held open by a hydraulic accumulator which is primed before leaving the factory. If, for whatever reason, the pressure drops or increases it is possible to prime the circuit again, as follows.
McHale 991B Round Bale Wrapper 11.12.2 To decrease accumulator pressure Remove the blanking cap on the hydraulic cylinder Insert a small punch into the hydraulic cylinder port. There is a one way ball valve in the cylinder which the punch needs to unseat to release oil. Always cover the punch with a cloth to prevent oil contacting skin.
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McHale 991B Round Bale Wrapper Turn the M16 nyloc nut to adjust the chain. There should be 10-13 mm of sag in the chain. Tighten the 4 x M16 bolts holding on the motor plate Remove the table safety lock and lower the table down Figure 11.s - Tip up table &...
The following key symbols help to explain what is sold as standard and what is optional equipment, or may not be available on the McHale 991B. They are only correct at the time of print and may vary. Key symbols...
McHale 991B Round Bale Wrapper Machine Maintenance To maintain the McHale 991B in good working order it is necessary to carry out preventative maintenance regularly. The following section gives details of how this may be carried out and how often it will be required.
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WARNING: Inspections in the “Danger Zone” during machine operation require a second trained operator at the controls McHale recommend that nobody is ever in the “Danger Zone” at any time during machine operation, but in the event of carrying out...
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McHale 991B Round Bale Wrapper 991B Figure 13.a - Daily greasing diagram for the 991B Figure 13.b - Weekly greasing diagram for the...
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McHale 991B Round Bale Wrapper 991B Figure 13.c - Monthly greasing diagram for the 991B Figure 13.d - Yearly greasing diagram for the...
McHale 991B Round Bale Wrapper 13.2 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.
In the case of using a high pressure washer, do not point pressurized water at or near electrical components, pivots points, valves or bearings. McHale recommend that the machine be blown down with an air line as opposed to a pressure washer in order to protect the overall paint work on the machine.
McHale 991B Round Bale Wrapper Trouble Shooting 15.1 Trouble shooting 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 991B Round Bale Wrapper Symptom Reason Solution Table moving in tip Drive chain loose Tighten chain position Table slow to tip down Back pressure too high Ensure free flow return is fitted Faulty quick release Replace couplings couplings Machine tips bale but does...
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McHale 991B Round Bale Wrapper 15.1.4 Cut & hold Symptom Reason Solution Cut & hold not catching Positioned incorrectly Check position plastic film Table not stopping in the Check and adjust magnets correct tip off position if necessary Cut & hold not opening...
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McHale 991B Round Bale Wrapper Symptom Reason Solution Hydraulic system vibrating Incorrect valve setting for Set the valve to suit the the tractor is being used tractor hydraulic system being used 15.1.7 Remote control Symptom Reason Solution Remote control receiver...
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 991B Round Bale Wrapper Declaration of Conformity EC MACHINERY DIRECTIVE: 2006/42/EC DECLARATION OF CONFORMITY We hereby certify that the machinery stipulated below complies with all the relevant provisions of the EC Machinery Directive and the National Laws and Regulations adopting this Directive.
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I am satisfied that the above checks have been carried out, and that the machine is complete with all accessories and manuals. Signed:................(Dealer) Date:......Signed:................(Owner) Date:......This machine must be registered on www.mchale.net by the Dealer in order to quality for Warranty! A signed copy of this form is to be retained by both the Dealer and the Customer.
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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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how do i remove the bale table to replace the broken roller pin which comes up beneith the table