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MacDon 912, Operator'S Manual

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MacDon 912 Operator'S Manual Download Page 26

Form # 46620 

Issue 11/06 

24 

 OPERATION

 

 

REEL SPEED

 

 

For best feeding of crop into the sickle and auger, 

reel speed should be just faster than ground 

speed. This gently sweeps crop across sickle into 

auger. Excessive reel speed causes undue wear 

of reel components and unnecessary load on reel 

drive, resulting in uneven reel motion. 

 

922 and 933 Headers

 

See Windrower Tractor Operator's Manual for 

identification and instructions for use of reel speed 

control in cab. 

NOTE: 

Both speed control knobs on tractor 

console are used to adjust reel speed. 

 

912 Header

 

See "Reel and Reel Drive" in Maintenance/ 

Service section for instructions regarding changing 

reel speed. 

Summary of Contents for 912

Page 1: ...Model 912 922 AUGER HEADER and Model 722 HAY CONDITIONER Model 933 Grass Seed Special AUGER HEADER OPERATOR S MANUAL Form 46620 Issue 11 06 Sugg Retail 15 00...

Page 2: ......

Page 3: ...actor CAREFULLY READ BOTH MANUALS TO BECOME FAMILIAR WITH ALL RECOMMENDED PROCEDURES BEFORE ATTEMPTING TO UNLOAD ASSEMBLE OR USE THE WINDROWER OR HEADER Use this manual as your first source of informa...

Page 4: ...ar Position 22 Ground Speed 23 Reel Speed 24 Reel Pick Up Finger Pitch 25 Cutting Height 26 Skid Shoes 26 Gauge Rollers 26 Header Angle 27 Header Flotation 27 Auger Mounted Crop Deflectors Stripper Ba...

Page 5: ...ing Single Sickle Drive Belt 49 Wobble Box Maintenance 50 Reel and Reel Drive Reel Position Fore and Aft 51 Replacing Reel Fingers 922 933 Headers 52 Reel Speed 912 Header 52 Reel Drive Belt Tension 9...

Page 6: ...Auger Header Plate is located on top of left hand end sheet Hay Conditioner Plate is located on left side of top sheet NOTE When ordering parts and service be sure to give your dealer the complete an...

Page 7: ...ORDS Note the use of the signal words DANGER WARNING and CAUTION with safety messages The appropriate signal word for each message has been selected using the following guidelines DANGER Indicates an...

Page 8: ...bears the current safety sign Safety signs are available from your Dealer Parts Department The part number is printed in the lower R H corner of each safety sign To install safety signs 1 Be sure the...

Page 9: ...ask hearing protection Be aware that prolonged exposure to loud noise can cause impairment or loss of hearing Wearing a suitable hearing protective device such as earmuffs A or earplugs B protects aga...

Page 10: ...achine life 11 Stop engine and remove key from ignition before leaving operator s seat for any reason A child or even a pet could engage an idling machine 12 Keep the area used for servicing machinery...

Page 11: ...mm 933 Grass Seed Header 68 59 or 50 in 1720 1490 1260 mm AUGER DRIVE 912 Header C belt to chain final drive 922 933 Header Enclosed gearbox AUGER SPEED 912 Header 210 rpm standard 186 rpm optional 92...

Page 12: ...5 9 16 149 110 202 149 5 8 203 150 271 200 3 4 359 265 495 365 7 8 569 420 813 600 1 867 640 1205 890 METRIC TORQUE SPECIFICATIONS Bolt Torque 8 8 10 9 Bolt Dia A N m lb ft N m lb ft M3 0 5 4 1 8 1 3...

Page 13: ...3 1 2 5 8 16 12 2 1 3 9 16 11 16 24 18 2 1 3 3 4 7 8 46 34 2 1 3 7 8 1 62 46 1 1 2 1 4 1 1 16 1 1 4 102 75 1 1 6 1 3 16 1 3 8 122 90 1 1 6 1 5 16 1 1 2 142 105 3 4 1 8 1 5 8 1 7 8 190 140 3 4 1 8 1 7...

Page 14: ...e and proper use 5 Review the manual and all safety related items with all operators annually 6 Be alert for other operators not using recommended procedures or not following safety precautions Correc...

Page 15: ...anual 1 To move conditioner attach chain hooks to conditioner side frames as shown or to U bolt on top sheet if present and lift with forklift Position hay conditioner behind header approximately in c...

Page 16: ...4 As hay conditioner reaches mounted position slide top mounting bolts J into header mounting brackets K with square washer lock washer and hex nut on top NOTE On left side be sure square washer is ca...

Page 17: ...See Attaching the Hay Conditioner in Assembly section 8 Adjust belt tension See Hay Conditioner Drive Belt in Maintenance Service section 9 Attach header to tractor See Windrower Tractor or Adapter Op...

Page 18: ...if lift system becomes disengaged c Check that winch cables are properly routed over pulleys D tightly wrapped around winch tube secured at hook A on front face of conditioner If necessary take up ca...

Page 19: ...winch pawl H engages ratchet wheel J c Remove and reposition the wrench on the winch nut and repeat steps 5a and 5b until the conditioner is on the ground and winch cables D are slack 6 Detach winch c...

Page 20: ...ry See Maintenance Service section Continue to check the belts periodically for the first 50 hours 3 Tighten any loose hardware after 5 hours operation See Specifications section for recommended torqu...

Page 21: ...ndations 2 Review all safety signs and other decals on the machine and note hazard areas 3 Be sure all shields and guards are properly installed and secured Never alter or remove safety equipment 4 Re...

Page 22: ...ective glasses or goggles heavy gloves respirator or filter mask wet weather gear 4 Protect against noise Wear suitable hearing protective devices such as A earmuffs or ear plugs B to protect against...

Page 23: ...ER LIFT CYLINDER STOPS DANGER To avoid bodily injury or death from fall of raised header always engage cylinder stops before going under header for any reason Cylinder stops are located on both header...

Page 24: ...POSITION IMPORTANT To prevent structural damage to header do not operate with lean bar removed Use the lean bar adjustment to accommodate different crop heights The lean bar should strike the upper po...

Page 25: ...ow indicates the relationship between ground speed and area cut for the three auger header sizes Example shown At a ground speed of 6 miles per hour 9 7 km h with a 14 ft header the area cut per hour...

Page 26: ...s undue wear of reel components and unnecessary load on reel drive resulting in uneven reel motion 922 and 933 Headers See Windrower Tractor Operator s Manual for identification and instructions for u...

Page 27: ...in the front results in a less aggressive pitch angle To adjust cam position 1 Loosen four bolts C both ends of reel 2 Turn bolts D at cam end to move cam up or down at front or rear until desired pos...

Page 28: ...damage to cutting components Other benefits include reduced plugging due to mud or dirt build up and longer stubble for faster drying WARNING To avoid bodily injury or death from unexpected start up...

Page 29: ...lifting action of down crops See Windrower Tractor Operator s Manual for adjustment procedure HEADER FLOTATION As a starting point for normal conditions adjust float spring tension so that 75 85 lbs f...

Page 30: ...ollowing may be necessary 1 Install flighting mounted deflectors B Deflectors are stored under platform at C Depending on crop conditions install one or two deflectors at each side of delivery opening...

Page 31: ...loser intermesh may be required for optimum conditioning however setting rolls too close may cause excessive stem and leaf damage To adjust roll intermesh NOTE The top face of nut E is used as the ind...

Page 32: ...A securely against plug to secure the position 4 Repeat at other side FEED PAN ROCK DROP TINE POSITION Relative to Hay Conditioner Rock drop tines must be correctly positioned to ensure proper feeding...

Page 33: ...n cutting for silage or green feed a narrower windrow may be preferred for ease of pick up Windrow Width Position the adjuster handle as required to move the side deflectors to the desired width NOTE...

Page 34: ...ssembly is attached to conditioner top cover If desired shield assembly can be fully tractor mounted with front of shield assembly attached to top rear pin of tractor lift linkage This accommodates fr...

Page 35: ...ow and hay dries slower If there is no wind saturated air becomes trapped around the windrow further hindering the drying process Raking or tedding will expose the hay to fresher less saturated air Cu...

Page 36: ...to reduce delivery opening from the maximum 68 inches 1720 mm to 59 inches 1490 mm A second pan extension may be ordered to further reduce opening to 50 inches 1260 mm NOTE When installing auger pan...

Page 37: ...lug clears 6 Store wrench in left end divider and secure with hairpin at C If plugging persists see Trouble Shooting section Hydraulic Conditioner Roll Opener Option For units equipped with this optio...

Page 38: ...to narrow the transport width LIFTING HEADER IN WORKING POSITION If it is necessary to lift header once it has been lowered from shipping position to working position see Lifting Vehicle Requirements...

Page 39: ...l drive belts 6 Lubricate the windrower thoroughly leaving excess grease on fittings to keep moisture out of bearing Apply grease to exposed threads and sliding surfaces of components 7 Check for worn...

Page 40: ...anically driven component by hand for example to access a lube fitting will cause drive components in other areas belts pulleys and sickle to move Stay clear of drive components at all times Be prepar...

Page 41: ...1 2 U S quart Auger Drive Gear Case 600 grams 1 5 tubes STORING LUBRICANTS Your machine can operate at top efficiency only if clean lubricants are used Use clean containers to handle all lubricants St...

Page 42: ...ows fitting except where noted Inject grease slowly to prevent seal damage 3 Leave excess grease on fitting to keep out dirt 4 Replace any loose or broken fittings immediately 5 If fitting will not ta...

Page 43: ...ttings on 12 933 headers twenty four fittings on 14 933 headers 2 Hay Conditioner Roll Shaft Bearings F G four fittings 3 Hay Conditioner Idler Pivot J one fitting 4 Auger Drive Jackshaft Bearings K o...

Page 44: ...END RIGHT END REEL SHAFT BEARINGS DRIVE CHAIN 922 933 HEADERS G H MAINTENANCE SERVICE GREASING THE HEADER AND CONDITIONER continued 100 Hours or Annually 1 Hay Conditioner Universal Shaft H three fitt...

Page 45: ...HAIN J MAINTENANCE SERVICE GREASING THE HEADER AND CONDITIONER continued 100 Hours or Annually 5 Reel Drive Chain J one fitting on 922 and 933 Headers Four to six pumps of grease gun will be sufficien...

Page 46: ...section A can be replaced without removing sickle from cutterbar 2 Remove lock nuts and lift section off of bolts IMPORTANT Do not mix heavy and light sickle sections on same sickle 3 Clean any dirt...

Page 47: ...and grasp rear edge of sickle during installation to reduce risk of injury from cutting edges Wear heavy gloves when handling sickle IMPORTANT Always align guards and re set sickle hold downs while re...

Page 48: ...these end guards must be serviced with the correct service part See Parts Catalog Sickle Hold Downs 912 922 Headers Check daily that sickle hold downs are set to prevent sickle sections from lifting...

Page 49: ...between sickle head and adjuster bar at first hold down both ends of header Check clearance at both extremities of sickle stroke 6 After adjusting all hold downs run header at a low engine speed and...

Page 50: ...ys must not rotate as the belt is tightened Tighten all hardware and check that the belt is properly seated in the grooves on both driver and driven pulleys 5 Check for correct sickle timing by rotati...

Page 51: ...auger drive belts as described in steps 1 c and 1 d 3 To tighten R H timing belt P a Loosen three nuts R at R H driver pulley mounting plate b Turn adjusting bolt S clockwise until a force of 6 lbs 28...

Page 52: ...etween end of dipstick and bottom hole or groove in dipstick 3 Add as required See Recommended Lubri cants for specified gear lube and capacity of box 4 Replace breather dipstick Change wobble box lub...

Page 53: ...se clearances to become excessive which can result in feeding problems and uneven windrows Changing the reel finger pitch see Operating Variables may also affect reel clearances Should adjustment be r...

Page 54: ...m mounting bolts B at arm 3 Remove bolts E and G connecting cam arm to finger bar Remove cam arm assembly F complete with reel arm 4 Replace fingers and reassemble IMPORTANT When replacing bearing bol...

Page 55: ...uid can penetrate the skin causing serious injury Relieve pressure before disconnecting hydraulic lines Tighten all connections before applying pressure Keep hands and body away from pinholes and nozz...

Page 56: ...hould be maximum 4 mm at any point along length of front and center strippers Stripper bar shims are available through your dealer NOTE Front strippers are provided only on 912 922 Headers 14 larger N...

Page 57: ...912 Header To adjust auger drive chain tension 1 Loosen nut N 2 Slide idler sprocket forward in slot until chain deflection is 1 4 inch 6 mm at mid span 3 Tighten nut N to secure the position Auger S...

Page 58: ...rocedure does not result in proper roll timing proceed as follows 1 Remove 4 bolts B and remove cover C 2 Loosen 6 bolts D at top roll hub rotate top roll to access these bolts through slot in cover 3...

Page 59: ...fully loosen the adjuster 3 Apply rearward force on spring at E pushing with wrench works well to pop spring off of retaining nut This allows full retraction of idler for belt removal and installatio...

Page 60: ...cant level before first operation and every 100 hours thereafter To check 1 With gear case approximately level remove level plug A 2 Remove fill plug with breather B 3 Fill to level plughole See Recom...

Page 61: ...efully follow safety messages given under Service Procedures AT FIRST USE See Break In Period in Operation section 10 HOURS OR DAILY 1 Grease cross shaft center support bearing double sickle headers 2...

Page 62: ...checklist 10 HOURS OR DAILY 6 Cross Shaft Cntr Bearing D 6 Sickle Assembly 9 Sections Guards Hold downs 9 Hydraulic Hoses 25 HOURS 6 Sickle Head s 50 HOURS 6 Reel Finger Tube Bearings 6 Cond Roll Shaf...

Page 63: ...ader angle too flat Increase header angle to tilt header so tines are closer to ground Reel fingers not lifting crop properly ahead of sickle Increase finger pitch aggressiveness 25 Reel speed too slo...

Page 64: ...tten header angle Adjust float springs for lighter float Ineffective cutting of crop Install stub guards and set hold downs for close clearance 47 Reel wrapping in tangled and weedy crops causing impr...

Page 65: ...d loss e g grass seed Reel speed too fast Adjust flow control on tractor Header angle too steep causing tines to contact ground Flatten header angle and check header float 27 Reel not correctly positi...

Page 66: ...f rolls 29 Under conditioning of crop Insufficient intermesh of hay conditioner rolls Increase intermesh of rolls 29 Windrow too wide or too narrow Windrow forming shields improperly positioned for de...

Page 67: ...oo low Raise rear deflector to mid slot position 31 Forming shield fins incorrectly positioned Position fins parallel to side deflectors Use fins only for swaths 6 ft and wider 32 Ground speed too fas...

Page 68: ...lean bar extensions allow raising the lean bar to strike the upper portion of the crop leaning it away from the header and exposing the stalks to the sickle Gauge Rollers Optional to Skid Shoes Whole...

Page 69: ...w Side Delivery System WholeGoods order number B4258 For side delivery of conditioned forage crops out the right side of the windrower tractor Allows forage chopper to pick up two conditioned windrows...

Page 70: ...lity chain 1 2 in with minimum 5000 lb 2270 kg working load limit UNLOAD HEADER CAUTION Be sure header is secure on forks before moving away from load Stand clear when lifting 1 Drive lifting vehicle...

Page 71: ...atus to take some of the weight off shipping stands and back up SLOWLY to lower the header CAUTION Stand clear when lowering as machine may swing SET HEADER SUPPORT STAND 1 Remove chain and move lifti...

Page 72: ...s Manual 1 To move conditioner attach chain hooks to conditioner side frames as shown or to U bolt on top sheet if present and lift with forklift Position hay conditioner behind header approximately...

Page 73: ...t B 4 As hay conditioner reaches mounted position slide top mounting bolts J into header mounting brackets K with square washer lock washer and hex nut on top NOTE On left side be sure square washer i...

Page 74: ...ley M with driven pulley on conditioner roll drive then tighten three bolts A to secure the position 10 Adjust belt tension See Hay Conditioner Drive Belt in Maintenance Service section 11 Assemble an...

Page 75: ...bolt 7 Operate handle on top shield to adjust side deflector position If handle is too stiff loosen nuts C and B and readjust NOTE With hardware securing left hand link in hole E as shown side deflec...

Page 76: ...ep bolt from pulling through large hole J M Optional High Position Attach hay conditioner forming shields to tractor frame This may be preferred if header is frequently removed from tractor 1 Attach s...

Page 77: ...cutterbar support D at inboard side Install hardware supplied as shown 2 Move the two upper stripper bars B so end of stripper is flush with edge of pan extension The lowest most forward stripper bar...

Page 78: ...and B and install top roll brackets using existing clevis and cotter pins Left and right brackets are different Position as shown 2 Attach cylinders at sides of conditioner frame Secure barrel end to...

Page 79: ...kit onto tractor as follows NOTE Installation of this harness prevents an operator from continuing operation with the conditioner rolls open or unknowingly extending cylinders by inadvertently pressi...

Page 80: ...lenoid S2 of cylinder control valve Detach existing wire L 444 green bottom solenoid S3 of cylinder control valve At header control valve detach wire M 414 green from solenoid Connect kit harness wire...

Page 81: ...g of the reel when header drive is engaged Save relay for re use when auger header is reattached OPERATION See page 35 for operating instructions for the hydraulic roll opener option ADJUSTMENTS AND C...

Page 82: ...Guards stub 47 H PAGE Hay Conditioner Drive Belt 57 Hay Conditioner Gear Case Lubricant 58 Haying Tips 33 Header Angle 27 Header Controls 21 Header Flotation 27 Header Lift Cylinder Stops 21 Hold Down...

Page 83: ...Bearing Installation 45 Sickle Lubrication 44 Sickle Removal Installation 44 Sickle Sections 44 Sickle Speed Changing Double Sickle 48 Sickle Storage Spare Sickle 45 Sickle Timing Double Sickle 48 Sid...

Page 84: ...P 50 Check skid shoes gauge wheels are evenly adjusted at a setting appropriate for first crop P 26 Check lean bar is adjusted at a setting appropriate for first crop P 22 Check hydraulic hose and wi...

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