McHale 991L Series Operator Instructor Manual
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McHale 991L Series Operator Instructor Manual

McHale 991L Series Operator Instructor Manual

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991L
991L Series Round Bale Wrapper
Operator Instructor Manual
Issue 15
McHale
Ballinrobe
Co. Mayo, Ireland
+353 94 9520300
Tel:
+353 94 9520356
Fax:
sales@mchale.net
Email:
Website: www.mchale.net
CLT00032_20

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  • Page 1 991L 991L Series Round Bale Wrapper Operator Instructor Manual Issue 15 McHale Ballinrobe Co. Mayo, Ireland +353 94 9520300 Tel: +353 94 9520356 Fax: sales@mchale.net Email: Website: www.mchale.net CLT00032_20...
  • Page 2 This page is intentionally blank...
  • 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 991L 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...
  • Page 5 McHale 991L Round Bale Wrapper Electronic Control System Bale Wrap Computer (991 LB) Electronic Control Box (991 LBER & TBER) Electronic Control Box Functions Available wrapping programs Electronic Control Box Setup Electronic Control Box Features Wrapper Operation Preparing the machine for wrapping...

  • Page 6: Introduction

    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 McHale 991L will provide years of reliable and dependable performance.

  • Page 7: Product Information

    McHale 991L Round Bale Wrapper Product Information The McHale 991L 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.

  • Page 8: Front View

    McHale 991L Round Bale Wrapper 2.2 Front view No. Machine Function Bale Support Bobbin Cut and Hold Rotating Table Bale Support Bobbin Quick Fit Dispenser 2 x Film Holders Shear Bolt Unit...

  • Page 9: General Dimensions & Specifications

    McHale 991L 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 2.8 m (9’2”) Transport width 1.65 m (5’ 5”) Transport height 1.94 m (6’ 4”) Height to top of rollers 0.83 m (2’...

  • Page 10: General Safety

    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.

  • Page 11: Store All Items Carefully

    McHale 991L 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.

  • Page 12: General Safety Warnings

    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.
  • Page 13 McHale 991L 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 electric and hydraulic lines, in particular the lighting system.  The operator must ensure that all safety devices are in operating mode ...
  • Page 14  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.

  • Page 15: 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 16: Noise Level

     In normal conditions, whilst driving the McHale 991L, 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).

  • Page 17: Safety Instruction Decal Locations

    McHale 991L Round Bale Wrapper 4.5 Safety instruction decal locations 991L Figure 4.a - Decals on the...

  • Page 18: Safety Warnings & Instructions Explained

    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 991L are displayed with their meanings below:...
  • Page 19 McHale 991L Round Bale Wrapper Keep hands out of the trap area (CST00026) Keep clear of rotating table (CST00028) Max table speed 30 R.P.M. (CST00031) Lifting hook location (CST00032) Diagram of plastic film path through dispenser (CST00049)
  • Page 20 McHale 991L Round Bale Wrapper Do not dismantle High pressure always (CST00056) Read instruction manual (CST00057) Support table before working under it Refer to the instruction manual (CST00059) Dispenser height setting CST00062) Manual control valve controls (CST00064)

  • Page 21: Machine Lifting Guidelines

    McHale 991L Round Bale Wrapper 991 L series chassis plate 4.7 Machine lifting guidelines WARNING: Machine Lifting  Only use chains or strapping that are rated for a minimum load of 0.5 tonnes (500 kg) per chain or strap when using the four lift eye locations on the chassis, shown below ...

  • Page 22: Tractor Requirements & Preparation

    Category 2 three point linkage (tractor only) 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 (991 TBER)

  • Page 23: Hydraulic Spool Valve Setup

    McHale 991L 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 24: Attaching The Wrapper

    McHale 991L Round Bale Wrapper 5.3 Attaching the wrapper Attach the lower link bar to the tractor lower links. Secure with linch pins provided (tractor only). Reverse the tractor up to the wrapper lining up the lower links of the tractor with the wrapper.

  • Page 25: Connecting The Control Box

    McHale 991L 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.

  • Page 26: Bale & Plastic Film Requirements

    McHale 991L 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 27: Care Of The Film Roll

    McHale 991L 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.

  • Page 28: Manual Controls

    McHale 991L Round Bale Wrapper Manual Controls The manual controls on the 991L consists of a four bank manually operated spool valve, operated directly by levers. Function Function Not used Not used Table rotate reverse Table rotate forward Table tip & arm down Table lower &...

  • Page 29: Electronic Control System

    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.
  • Page 30 McHale 991L 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”...
  • Page 31 McHale 991L 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.
  • Page 32 McHale 991L 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.
  • Page 33 McHale 991L 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.
  • Page 34 McHale 991L 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.
  • Page 35 McHale 991L 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...
  • Page 36 McHale 991L 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.
  • Page 37 McHale 991L 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”...

  • Page 38: Electronic Control Box (991 Lber & Tber)

    McHale 991L Round Bale Wrapper 8.2 Electronic Control Box (991 LBER & TBER) 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.

  • Page 39: Electronic Control Box Functions

    McHale 991L 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 &...

  • Page 40: Available Wrapping Programs

    McHale 991L 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 &...

  • Page 41: Electronic Control Box Setup

    McHale 991L Round Bale Wrapper 8.5 Electronic Control Box Setup...

  • Page 42: Electronic Control Box Features

    McHale 991L 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...
  • Page 43 McHale 991L 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 44 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.
  • Page 45 McHale 991L Round Bale Wrapper It is crucial that the correct wrapping sequence/program is selected for the 991L. Please refer to “Available wrapping programs” on page 40 to see which sequence/ program applies to this machine. To change the wrapping sequence/program:...
  • Page 46 McHale 991L Round Bale Wrapper Remote Type This option is used to select the remote control type. There are 2 different types used:  Infrared (IR) - Older machines  Radio frequency type (RF) - Newer machines To select the remote type:...
  • Page 47 McHale 991L Round Bale Wrapper the remote frequency code has been established. Up to 7 handpieces can be programmed into the one Electronic Control Box, if desired. Each remote handpiece has a different code which ensures that multiple wrappers can operate in the same location, without interfering with each other.
  • Page 48 McHale 991L 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 7) 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 McHale 991L Round Bale Wrapper 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.

  • Page 50: Wrapper Operation

    McHale 991L 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 12. 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 991L 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.
  • Page 52 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): Press “Auto start”...

  • Page 53: Road Traffic Safety & Operation

    McHale 991L 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!

  • Page 54: Field Operation & Wrapper Adjustments

    McHale 991L 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.

  • Page 55: 500 Mm Plastic Film Conversion Kit

    McHale 991L Round Bale Wrapper Ensure the machine is securely chocked and the dispenser is well supported Loosen the 4 x M16 nyloc nuts on the U-bolts, but do not remove! Slide the dispenser up or down, as required Tighten the 4 x M16 nyloc nuts Remove the support and chocks Figure 11.b - Dispenser height adjustment...
  • Page 56 McHale 991L 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 mm diameter bale.
  • Page 57 NOTE: Procedure also applies to the 991L series for table start This procedure also applies to the 991L series machines for table start Figure 11.e - Tip up table & fit safety bar Figure 11.f - Table stop position magnet 11.6 Table load position magnet (991 LBER)
  • Page 58 The table half tip magnet does not normally require adjustment. However, as it is used as a signal for the half tip position (991L series), it may need to be re-set. This will also affect the cut and hold operation.

  • Page 59: Gearbox Cross Shaft Roll Pin Replacement

    McHale 991L Round Bale Wrapper 11.8 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...

  • Page 60: Cut & Hold Accumulator Pressure

    McHale 991L Round Bale Wrapper Figure 11.l - Gearbox cross shaft roll pin replacement 11.10 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.

  • Page 61: Chain Adjustments

    McHale 991L Round Bale Wrapper 11.10.2 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.
  • Page 62 McHale 991L 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.p - Tip up table &...

  • Page 63: Accessories & Optional Equipment

    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 991L. They are only correct at the time of print and may vary. Key symbols ...

  • Page 64: Dispenser Gears

    McHale 991L Round Bale Wrapper 12.3 Dispenser Gears  70% Gear option Item Part Code Description ADP00018 Kit dispenser gears 70% CMH00055 Gear spur 1.5 m 60t dispenser CMH00175 Gear spur 1.5 m 35t dispenser  64% Gear option Item...

  • Page 65: Machine Maintenance

    McHale 991L Round Bale Wrapper Machine Maintenance To maintain the McHale 991L 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.
  • Page 66 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...
  • Page 67 McHale 991L Round Bale Wrapper 991L Figure 13.a - Daily greasing diagram for the 991L Figure 13.b - Weekly greasing diagram for the 991L Figure 13.c - Yearly greasing diagram for the...

  • Page 68: Tightening Torque Values

    McHale 991L 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.

  • Page 69: Storage

    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.

  • Page 70: Trouble Shooting

    McHale 991L 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.
  • Page 71 McHale 991L 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 15.1.2 Plastic film Symptom Reason Solution Plastic film splitting as bale Bale sticking to roller as it...
  • Page 72 McHale 991L Round Bale Wrapper 15.1.4 Control box Symptom Reason Solution Control box not counting Sensor damaged Locate and replace Magnet broken Locate and replace Sensor - magnet clearance Adjust sensor approx. 10- 15 mm from magnet Faulty control box Replace control box “LOW BATT”...
  • Page 73 McHale 991L Round Bale Wrapper 15.1.7 Control valve Symptom Reason Solution Dump valve on control Back pressure too high Ensure free flow return is valve leaking (electronic fitted machines) Return hose not connected Connect hose...

  • Page 74: 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 75 McHale 991L 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.
  • Page 76 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.
  • Page 77 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. Warranty claims applying to these types of parts must be submitted in the same way as if they were parts manufactured by McHale.
  • Page 78  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.

This manual is also suitable for:

991 lb991 lber991 tber

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