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NOTE: The HC20 is compatible ONLY with D2 SP Series Headers that are 4.6–9.1 m (15–30 ft.) in length and equipped with a timed double-knife. To ensure the best performance, the HC20 Hay Conditioner should NOT be attached to single-knife drive headers.
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NOTE: This document is available in English only. 262400 Revision A...
Summary of Changes MacDon is continually improving its products. Sometimes, those improvements affect the documentation of those products. A list of the major changes made to this document since the last version was published is provided below. Section Internal Use...
Serial Numbers Serial numbers help MacDon representatives provide the correct information for your hay conditioner. Record the serial number of the hay conditioner in the space below. Hay Conditioner Serial Number: __________________________________ Serial number plate (A) is located on the rear cover of the conditioner frame.
Chapter 1: Safety Understanding and consistently following these safety procedures will help to ensure the safety of those operating the machine and of bystanders. 1.1 Safety Alert Symbols The safety alert symbol indicates important safety messages in this manual and on safety signs on the machine. This symbol means: •...
SAFETY 1.2 Signal Words Three signal words, DANGER, WARNING, and CAUTION, are used to alert you to hazardous situations. Two signal words, IMPORTANT and NOTE, identify non-safety related information. Signal words are selected using the following guidelines: DANGER Indicates an imminently hazardous situation that, if it is not prevented, will result in death or serious injury. WARNING Indicates a potentially hazardous situation that, if it is not prevented, could result in death or serious injury.
SAFETY 1.3 General Safety Operating, servicing, and assembling machinery presents several safety risks. These risks can be reduced or eliminated by following the relevant safety procedures and wearing the appropriate personal protective equipment. CAUTION The following general farm safety precautions should be part of your operating procedure for all types of machinery.
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SAFETY • Wear close-fitting clothing and cover long hair. NEVER wear dangling items such as hoodies, scarves, or bracelets. • Keep all shields in place. NEVER alter or remove safety equipment. Ensure that the driveline guards can rotate independently of their shaft, and that they can telescope freely.
SAFETY 1.4 Hydraulic Safety Because hydraulic fluid is under extreme pressure, hydraulic fluid leaks can be very dangerous. Follow the proper safety procedures when inspecting hydraulic fluid leaks and servicing hydraulic equipment. • Always place all hydraulic controls in NEUTRAL before leaving the operator’s seat.
SAFETY 1.5 Decommissioning and Disposing of Agricultural Equipment When agricultural equipment is no longer serviceable and needs to be decommissioned and disposed of, recyclable materials including ferrous and non-ferrous metals, rubber, and plastics; fluids such as lubricants, refrigerants, and fuels; and hazardous materials found in batteries, some light bulbs, and electronic equipment must be handled safely and not introduced into the environment.
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SAFETY • Use appropriate personal protective equipment when removing and handling objects and materials. • Use appropriate personal protective equipment when handling objects with residue from pesticides, fertilizers, or other agricultural chemicals. Follow local regulations when handling and disposing of these objects. •...
SAFETY 1.6 Safety Signs Safety signs are decals placed on the machine where there is a risk of personal injury, or where the Operator should take extra precautions before operating the controls. They are usually yellow. • Keep safety signs clean and legible at all times. •...
SAFETY 1.7 Safety Decal Locations Safety signs are usually yellow decals, and are placed on the machine where there is a risk of personal injury, or where the operator has to take extra precaution before operating controls. Figure 1.14: Forming Shield Safety Decal Location A - MD #320514 –...
SAFETY 1.8 Understanding Safety Signs Safety sign decals use illustrations to convey important safety or equipment maintenance information. MD #320514 Conditioning devices entanglement hazard DANGER To prevent injury: • Stop the engine and remove the key from the ignition before servicing. •...
A headed and externally threaded fastener designed to be paired with a nut Bolt D2 SP Series Draper Header MacDon D215, D220, D225, D230, D235, and D241 Draper Headers for Windrowers Flats from finger tight FFFT A reference position in which the given sealing surfaces or components are making Finger tight contact with each other.
Header-mounted tractor-supported adjustable forming shield system IMPORTANT: The HC20 Hay Conditioner should NOT be attached to single-knife drive headers. The HC20 Hay Conditioner should NOT be used with 9.1 m (30 ft.) draper headers in heavy crop conditions. 262400 Revision A...
PRODUCT OVERVIEW 2.3 Component Identification Knowing the location and the identity of key hay conditioner components is critical to operating and properly maintaining the machine. Figure 2.1: Back View of Hay Conditioner Installed in Header A - Hydraulics to Header B - Lift Arms C - Hydraulic Motor D - Rolls...
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PRODUCT OVERVIEW Figure 2.2: Back View of Hay Conditioner Installed in Header A - Timing Gears B - Roll Timing Tool C - Mounting Brackets D - Lower Supports E - Spacers Figure 2.3: Front View of Hay Conditioner Installed in Header A - Mounting Bracket B - Roll Gap Adjusters C - Feed Deck Motor...
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PRODUCT OVERVIEW Figure 2.4: Swath Forming Shield A - Side Deflector Adjusters B - Side Deflectors C - Height Adjust Strap D - Fluffer Shield E - Deflector Fins 262400 Revision A...
Chapter 3: Unloading and Assembly To unload and assemble an HC20 Hay Conditioner, follow the procedures provided in this chapter in the order in which they appear. 3.1 Unloading Hay Conditioner The hay conditioner will need to be unloaded before it can be assembled.
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UNLOADING AND ASSEMBLY 1. Remove the tie down straps and chains securing the hay conditioner. 2. Use the forklift to lift the first of the three pallets of components off of the trailer deck. 3. Back the forklift up until the forks and pallet clear the trailer.
UNLOADING AND ASSEMBLY 3.2 Installing Rock Grate The rock grate prevents rocks from being fed into the conditioner rolls. It will need to be installed before the hay conditioner can be attached to the header. 1. Unpack the feed deck / rock grate bundle (B7478). Feed deck assembly (A) includes: •...
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UNLOADING AND ASSEMBLY 6. Slide rock grate (A) forward, and set the rock grate in between wearplates (B) and cutterbar support (C). Push the rock grate forward onto the cutterbar. 7. Retrieve two M12 hex nuts (MD #136431) and two M12 x 40 round head bolts (MD #135900) from the loose parts package shipped with B7478.
UNLOADING AND ASSEMBLY 3.3 Installing Mounting Brackets Bolt-on mounting brackets are required to connect the hay conditioner to D215, D220, D225, D230, and D235 SP Draper Headers. 1. Retrieve the following parts from the loose parts package shipped with B7478: •...
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UNLOADING AND ASSEMBLY 6. Install spacer (C) and bracket (F) on headers with hydraulic deck shift (HDS) installed as follows: Remove bolt, nut (A) and clamps (B) securing two hydraulic lines (G). b. Grip two hydraulic lines (G) together to create enough room to install hardware.
UNLOADING AND ASSEMBLY 3.4 Installing Feed Draper Deck The feed draper deck conveys crop from the side drapers to the conditioner rolls. It will need to be installed before the hay conditioner can be attached to the header. 1. Retrieve feed deck assembly (A) from B7478. 2.
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UNLOADING AND ASSEMBLY 6. Position coupler mount bracket (A) in front of left lower support bracket (B), align their holes, and secure with the removed bolts (C) and nuts. 7. Retrieve the following parts from the loose parts package shipped with B7478: •...
UNLOADING AND ASSEMBLY 3.5 Installing Conditioner Once the hay conditioner has been prepared, it can be attached to the header. A lifting device will be needed to position the hay conditioner. There are two methods for installing the conditioner. Proceed to the relevant procedure: •...
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UNLOADING AND ASSEMBLY 2. Attach a chain to lifting brackets (A) on the conditioner. Drape the chain over forks (B) of the forklift as shown. 3. Lift the conditioner off of the shipping pallet. 4. Lower the conditioner to the ground in the upright position. Figure 3.15: Conditioner and Lifting Brackets 5.
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UNLOADING AND ASSEMBLY 9. Carefully lower the conditioner between the windrower lift legs until lugs (A) on the conditioner are seated in conditioner support brackets (B) on the header. 10. Ensure that the conditioner is seated properly in the brackets. Remove the chain. Figure 3.18: Conditioner Lug –...
UNLOADING AND ASSEMBLY 14. Connect hose (A) coming from manifold block (B) to female coupler (C) at the bottom of mount bracket (D). 15. Connect hose (E) coming from flow divider hydraulic valve (F) to the male coupler (G) at the top of mount bracket (D).
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UNLOADING AND ASSEMBLY 2. Attach a chain to lifting brackets (A) on the conditioner. Drape the chain over forks (B) of the forklift as shown. 3. Lift the conditioner off of the shipping pallet. 4. Lower the conditioner to the ground in the upright position. Figure 3.21: Conditioner and Lifting Brackets 5.
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UNLOADING AND ASSEMBLY 8. Loosen nuts (A) enough to pivot lift arm (B) and bracket (C) to the outboard side of the conditioner. 9. Remove and retain L-pin (D) securing the other end of lift arm (B) to the support bracket (E) on the conditioner. NOTE: Rotate L-pin to align on the keyhole slot.
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UNLOADING AND ASSEMBLY 21. Carefully lower the conditioner between the windrower lift legs until lugs (A) on the conditioner are seated in conditioner support brackets (B) on the header. 22. Ensure that the conditioner is seated properly in the brackets. Figure 3.27: Conditioner Lug –...
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UNLOADING AND ASSEMBLY 29. Loosen bolts (D) enough to pivot lift arm (A) and bracket (E) to the inboard side of the conditioner. 30. Remove left lift arm (A) from bracket (B) by lifting latch (C). 31. Hold the lift arm and swing it to the right. Figure 3.30: Conditioner –...
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UNLOADING AND ASSEMBLY 35. Connect hose (A) coming from manifold block (B) to female coupler (C) at the bottom of mount bracket (D). 36. Connect hose (E) coming from flow divider hydraulic valve (F) to the male coupler (G) at the top of mount bracket (D).
UNLOADING AND ASSEMBLY 3.6 Assembling Forming Shield The forming shield shapes and controls the distribution of conditioned crop. It will need to be assembled before it can be installed on the hay conditioner. 1. Retrieve and unpack forming shield bundle (B7479). Forming shield (A) includes: •...
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UNLOADING AND ASSEMBLY 3. Attach short fins (A) and long fins (B) to the shield using two 3/8 x 3/4 in. carriage bolts and two 3/8 in. flange nuts per fin: • Attach short fins (A) to the bottom of the shield as shown using the hardware provided.
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UNLOADING AND ASSEMBLY 6. Position deflector (A) on the cover as shown. Secure the deflector with hex bolt (B) and the flange nut removed in the previous step. 7. Tighten the flange nut enough so that it holds deflector (A) in position, but still allows the deflector to be adjusted.
UNLOADING AND ASSEMBLY 3.7 Installing Forming Shield on Hay Conditioner Once the forming shield has been assembled, it can be installed on the hay conditioner. 1. Position the forward end of forming shield (A) onto two pins (B) on the rear cover of the conditioner. Figure 3.41: Forming Shield 2.
UNLOADING AND ASSEMBLY 3.8 Preparing M1 Series Windrower The center-link mounting support on the M1 Series Windrower needs to be drilled to be able to transport the forming shield when needed. DANGER To prevent bodily injury or death from the unexpected start-up or fall of a raised machine, always stop the engine, remove the key, and engage the safety props before going under the header for any reason.
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UNLOADING AND ASSEMBLY 4. Retrieve the following parts from the finishing package shipped with B7479: • Shield transport support assembly with hardware attached 5. Install shield transport support (A) on the windrower frame with two 3/8 x 1.0 in. carriage bolts and nuts (B). Figure 3.46: Shield Transport Support on Windrower 262400 Revision A...
UNLOADING AND ASSEMBLY 3.9 Attaching Header to M1 Series Windrower The windrower’s lift linkage and center-link will need to be connected to the draper header. The windrower may be equipped with an optional self-aligning hydraulic center-link, which allows control over the vertical position of the center- link from the cab.
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UNLOADING AND ASSEMBLY 5. If reattaching the header to the windrower: Remove and retain hair pin (A) and clevis pin (B) from header support (C). Repeat this step on the opposite side. Figure 3.49: Header Support — Left Side Shown 6.
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UNLOADING AND ASSEMBLY 9. In the windrower cab, press scroll knob (A) to display the QuickMenu page. 10. Rotate scroll knob (A) to highlight HEADER FLOAT symbol (B) and press the scroll knob to select it. Figure 3.52: HPT Display 11.
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UNLOADING AND ASSEMBLY 13. If reattaching the header to the windrower: Slowly drive the windrower forward until windrower lift linkage (A) enter header supports (B). Continue driving slowly forward until the lift linkages contact the header supports in the header legs and the header nudges forward. Figure 3.55: Header Leg and Support 14.
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UNLOADING AND ASSEMBLY 17. Windrowers without the self-aligning center-link kit: Press the HEADER TILT UP or HEADER TILT DOWN cylinder switches on the GSL to extend or retract the center-link cylinder until the hook is aligned with the header attachment pin. b.
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UNLOADING AND ASSEMBLY 21. If reattaching the header to the windrower: Secure windrower lift linkage (A) to header supports (B) using clevis pin (C) and hair pin (D). Repeat this step on the opposite side of the header leg. NOTE: To ensure that the pin doesn’t snag the windrow, install the clevis pin on the outboard side of the draper header support.
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UNLOADING AND ASSEMBLY 24. Start the engine. 25. Press HEADER DOWN switch (A) on the GSL to fully lower the header. 26. Shut down the engine, and remove the key from the ignition. Figure 3.64: GSL 27. Press rotary scroll knob (A) on the HPT to highlight the QuickMenu options.
UNLOADING AND ASSEMBLY 3.10 Attaching Header to M2 Series Windrower The windrower’s lift linkage and center-link will need to be connected to the header. DANGER To prevent bodily injury or death from the unexpected start-up or fall of a raised machine, always stop the engine and remove the key before leaving the operator’s seat, and always engage the safety props before going under the machine for any reason.
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UNLOADING AND ASSEMBLY 3. Extend the windrower wheels from narrow transport into field mode. For instructions, refer to the windrower operator’s manual. 4. Rotate left signal light placard (A) to the up (vertical) position before connecting the windrower to the header. Figure 3.68: Left Signal Light Placard 5.
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UNLOADING AND ASSEMBLY Figure 3.70: Float Removal 7. Remove the float as follows: • If the HarvestTouch Display shows the message “Resume Float?”, then select NO (A). ™ • If the HarvestTouch ™ Display does NOT show the message, then select FLOAT ADJUST (B), select switch (C), and confirm the switch and float settings (D) are grayed out.
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UNLOADING AND ASSEMBLY 8. Prepare the center-link as follows: • If not equipped with the Center-Link Alignment kit: Relocate pin (A) in the frame linkage as needed to raise center-link (B) until the hook is above the attachment pin on the header. •...
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UNLOADING AND ASSEMBLY 12. Windrowers equipped with the Center-Link Alignment kit: Press HEADER TILT UP (A) or HEADER TILT DOWN (B) switches on the GSL to extend or retract the center-link cylinder until hook (C) is aligned with the header attachment pin.
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UNLOADING AND ASSEMBLY 14. Press HEADER UP switch (A) to raise the header to its maximum height. NOTE: If one end of the header does NOT fully rise, rephase the lift cylinders as follows: Press and hold HEADER UP switch (A) until both cylinders stop moving.
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UNLOADING AND ASSEMBLY 17. Proceed as follows: • If the header supports are installed on the windrower: Install pin (B) through the header leg, engaging the header support in the lift linkage. Secure the pin with ring (A). • If the header supports are installed in the header: Secure windrower lift linkage (C) to header supports (D) using clevis pin (E) and hairpin (F).
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UNLOADING AND ASSEMBLY 19. Start the engine. 20. Press HEADER DOWN switch (A) on the GSL to fully lower the header. Figure 3.79: Ground Speed Lever (GSL) 21. Select FLOAT ADJUST (A). ™ Figure 3.80: HarvestTouch Display 262400 Revision A...
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UNLOADING AND ASSEMBLY Figure 3.81: Float Adjustment 22. Select switch (A), so that it turns green, to activate the float. 23. If the float is not already set up, set the float as follows: The float preset, which is selected using the operator’s console, is displayed at location (B). Confirm if the desired preset is selected.
UNLOADING AND ASSEMBLY 3.11 Attaching Forming Shield to Windrower Once the windrower is attached to the header, the forming shield should be secured to the windrower. 1. Retrieve the following parts from the hardware bag shipped with B7479: • Two 21/32 (I.D.) x 1 5/16 in. (O.D.) flat washers (MD #18600) •...
UNLOADING AND ASSEMBLY 3.12 Connecting Hydraulics to Windrower Once the hay conditioner has been installed in the header and the header attached to the windrower, the hydraulics can be connected. To prevent contamination of the hydraulic system, use a clean rag to remove dirt and moisture from all hydraulic couplers. 1.
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Hose (E) coming from Port P3 (F) of the manifold block (C) to male fitting (G) on the windrower. Hose (H) coming from hydraulic motor (J) of the HC20 to 1/2 in. male coupler (K) on the windrower. d. Remove hose (L) from coupler mounting bracket (M), and connect hose (N) from flow divider hydraulic valve (P).
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UNLOADING AND ASSEMBLY 7. Push platform (A) towards the cab until it stops and the latch engaged. Figure 3.87: Left Cab-Forward Platform of Windrower 262400 Revision A...
UNLOADING AND ASSEMBLY 3.13 Lubricating Conditioner The hay conditioner will need to be greased before it can be delivered to the customer. Figure 3.88: Grease Point Decal 1. Prepare the hay conditioner for service. For instructions, refer to 5.1 Preparing Hay Conditioner for Servicing, page 2.
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UNLOADING AND ASSEMBLY Figure 3.89: Lubrication Points A - Drive Roller Bearing Lubrication Point B - Idler Roller Bearing Lubrication Point C - Idler Roller Bearing Lubrication Point 262400 Revision A...
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UNLOADING AND ASSEMBLY Figure 3.90: Lubrication Points A - Roll Shaft Bearing Lubrication Points (Four Places) 262400 Revision A...
UNLOADING AND ASSEMBLY 3.14 Predelivery Checks Predelivery checks ensure that the hay conditioner is ready for the field. Perform the final checks and adjustments listed on the yellow Predelivery Checklist found at the end of this manual: Predelivery Checklist, page 157.
UNLOADING AND ASSEMBLY 3. Position cover (B) as shown. Secure the cover with wingnut (A). Figure 3.93: Drive Cover 3.14.2 Checking Roll Gap The gap between the hay conditioner’s conditioner rolls determines the degree to which crop is conditioned as it passes through the rolls.
UNLOADING AND ASSEMBLY 3.14.3 Checking Roll Timing The bars on one of the hay conditioner’s conditioner rolls must intermesh with the bars on the other roll. Although the roll timing is set at the factory, it should be inspected before the hay conditioner is used in the field. 1.
UNLOADING AND ASSEMBLY 3.14.4 Running up Conditioner Running up the conditioner ensures that the machine is functioning properly. DANGER Do not start the machine’s engine or move it until all bystanders have cleared the area. DANGER To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key from the ignition before leaving the operator’s seat for any reason.
Chapter 4: Operation Safely operating your machine requires familiarizing yourself with its capabilities. 4.1 Owner/Operator Responsibilities Owning and operating heavy equipment comes with certain duties. CAUTION • It is your responsibility to read and understand this manual completely before operating the header. Contact your Dealer if an instruction is not clear to you.
OPERATION 4.2 Operational Safety Safely operating the hay conditioner requires following these guidelines. CAUTION Follow these safety precautions: • Follow all safety and operational instructions provided in the windrower and header operator's manuals. If you do not have a windrower and/or header manual, get one from your Dealer.
OPERATION 4.3 Attaching Hay Conditioner to Header and Windrower If the hay conditioner was removed from the header and disconnected from the windrower, it can be reinstalled and connected by following these procedures. To install the hay conditioner on a D2 Series Draper Header and to connect to M1 or M2 Series Windrower, follow these procedures: •...
OPERATION 4.4 Detaching Hay Conditioner from Header The hay conditioner can be detached from the header by using a windrower or a suitable lifting device. 4.4.1 Disconnecting Hydraulics from Windrower The hay conditioner hydraulics must be disconnected from the windrower before detaching the header from the windrower.
Figure 4.5: Hydraulic Connections 4.4.2 Detaching Hay Conditioner – Lifting Method A forklift or another suitable lifting device can be used to lift the HC20 away from the header. DANGER To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key from the ignition before leaving the operator’s seat for any reason.
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OPERATION 4. Disconnect strap (A) from the windrower frame. Repeat at the opposite side. 5. Detach the header from the windrower. For instructions, refer to the windrower operator’s manual. Figure 4.6: Forming Shield Strap at Wheel Leg 6. Remove two lynch pins (A) securing the forming shield to the header pins.
Figure 4.10: Conditioner and Lifting Brackets 4.4.3 Detaching Hay Conditioner – Windrower Method The windrower can be used to lift the HC20 away from the header. DANGER To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key from the ignition before leaving the operator’s seat for any reason.
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OPERATION 4. Disconnect strap (A) from the windrower frame. Repeat at the opposite side. 5. Detach the header from the windrower. For instructions, refer to the windrower operator’s manual. Figure 4.11: Forming Shield Strap at Wheel Leg 6. Remove two lynch pins (A) securing the forming shield to the header pins.
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OPERATION 8. Loosen nuts (A) enough for lift arm (B) and bracket (C) to pivot. 9. Remove and retain L-pin (D) securing the other end of lift arm (B) to the support bracket (E) on the conditioner. NOTE: Rotate L-pin to align on the keyhole slot. NOTE: The support bracket on the left is different from the support bracket on the right.
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OPERATION 15. Position the windrower arms in lift arm pockets (A). Insert the L-pins. 1005140 Figure 4.17: Lift Arm Pockets 16. Carefully raise the windrower lift legs until lugs (A) on conditioner clear U-shaped brackets (B) on the header. 17. Slowly back the windrower away from the header. 18.
OPERATION 4.5 Detaching Feed Draper Deck and Rock Grate The feed draper deck and rock grate can be removed from the hay conditioner for service, replacement, or to gain access to other components. 1. Remove bolt and nut (A) securing the feed draper deck (B) to the right rear deck support (C).
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OPERATION 6. Remove two bolts (D) and nuts securing rock grate (A) to the header legs. 7. Loosen hardware securing the knife hold-downs to the cutterbar plates (B). 8. Slide rock grate (A) backward, away from wearplates (B) and cutterbar support (C). Figure 4.23: Rock Grate –...
OPERATION 4.6 Break-in Period The break-in period refers to the hay conditioner’s first 5 hours of operation. During this time, the hay conditioner should be observed carefully to ensure that it is working correctly. DANGER To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key from the ignition before leaving the operator’s seat for any reason.
OPERATION 4.7 Preseason Check Performing initial inspections before the harvest season begins ensures that the machine will perform well when needed. CAUTION • Review the operator’s manual to refresh your memory on the safety and operating recommendations. • Review all of the safety signs and other decals on the header. Note any hazard areas. •...
OPERATION 4.8 Daily Startup Check Perform the daily startup check before operating the hay conditioner. CAUTION • Clear the area of bystanders. • Wear close-fitting clothing and protective shoes with slip- resistant soles. • Remove any foreign objects from the machine and the surrounding area.
OPERATION 4.9 Conditioner Operation The hay conditioner is equipped with two intermeshing steel rolls, which condition the crop by crimping and crushing the stem. The hay conditioner will need to be configured differently for different crops. WARNING Keep hands and feet away from the discharge opening. Ensure that bystanders are at least 100 meters (330 ft.) away from the header when it is operating.
OPERATION If necessary, the roll gap can be adjusted by loosening nut (A) and turning adjuster (B). Retighten nut (A) after the adjustment has been made. IMPORTANT: To ensure that the conditioner rolls intermesh, roll gap gauge (C) must show the same measurement on both sides of the conditioner roll.
OPERATION 2. Loosen four bolts (A) on one of the small timing gears. Figure 4.29: Timing Gear 3. Insert tool (A). Allow the rolls to adjust to the tool. 4. Tighten the bolts on the timing gear. 5. Return the roll timing tool to its storage location on the right end of the conditioner.
OPERATION 3. Locate adjustment nuts (B) on top of the conditioner channel. 4. Loosen jam nuts (A). 5. Turn adjusting nut (B) clockwise to increase the tension on the rolls, and counterclockwise to decrease the tension. 6. Adjust nuts (B) on both sides of the conditioner by equal amounts.
OPERATION 2. Remove hairpins (A) securing straps (B) to the pins on the windrower frame. 3. Support the aft end of the forming shield. Adjust the shield height using the holes in the straps. 4. Secure the straps with the hairpins. Figure 4.32: Forming Shield Strap at Wheel Leg Adjusting Side Deflectors The position of the hay conditioner’s side deflectors affects the width and placement of the windrow.
OPERATION 2. For lighter crops: Lower rear deflector (A) by pushing on one side of the deflector and then on the other side. Locking bolts (B) are located at both ends of the deflector and may need to be be loosened slightly. 3.
OPERATION 4.10 Storing Hay Conditioner Performing maintenance at the end of each operating season ensures that the hay conditioner is ready for the next operating season. WARNING Never use gasoline, naphtha, or any volatile material for cleaning purposes. These materials may be toxic and/or flammable.
OPERATION 4.11 Transporting Forming Shield The forming shield can be transported using the center-link mounting support on the M1 or M2 Series Windrower. DANGER To prevent bodily injury or death from the unexpected start-up or fall of a raised machine, always stop the engine, remove the key, and engage the safety props before going under the header for any reason.
Chapter 5: Maintenance and Servicing This chapter contains the information necessary to perform routine maintenance and occasional servicing tasks on your machine. The word “maintenance” refers to scheduled tasks that help your machine operate safely and effectively; “service” refers to tasks that must be performed when a part needs to be repaired or replaced. For advanced service procedures, contact your Dealer.
MAINTENANCE AND SERVICING 5.2 Maintenance Schedule The maintenance program is organized according to the hay conditioner’s operating hours. This system depends on keeping accurate operating logs. The maintenance schedule specifies the recommended periodic maintenance procedures and service intervals. Regular maintenance is the best insurance against early wear and untimely breakdowns. Follow this schedule to maximize the service life of the hay conditioner.
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MAINTENANCE AND SERVICING Table 5.2 Maintenance Record ü ü – Check S S – Lubricate Action: Hour meter reading Date Serviced by First use Refer to 4.6 Break-in Period, page 79 for checklist. 10 hours or daily ü Inspect the hydraulic hoses and NOTE: lines A record of daily maintenance is not normally required;...
MAINTENANCE AND SERVICING 5.3 Recommended Safety Procedures The hay conditioner must be serviced safely. Follow these recommended safety procedures to service the hay conditioner: • Park the windrower on a level surface, if possible. If the windrower is parked on an incline, block the wheels. •...
MAINTENANCE AND SERVICING 5.4 Removing and Installing Driveshields Driveshields protect bystanders from fast-moving parts. They may need to be removed so that the hay conditioner can be serviced. CAUTION • Keep all driveshields in place when the hay conditioner is operating. Never alter or remove safety equipment. •...
MAINTENANCE AND SERVICING 5.5 Lubrication Certain components on the hay conditioner require regular lubrication. 5.5.1 Lubricants Only specified lubricants can be used to lubricate the hay conditioner. Use clean containers to handle all lubricants. Store lubricants in an area protected from dust, moisture, and other contaminants.
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MAINTENANCE AND SERVICING The following points on the hay conditioner require regular lubrication: Figure 5.3: Lubrication Points A - Drive Roller Bearing Lubrication Point B - Idler Roller Bearing Lubrication Point C - Idler Roller Bearing Lubrication Point 262400 Revision A...
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MAINTENANCE AND SERVICING Figure 5.4: Lubrication Points A - Roll Shaft Bearing Lubrication Points (Four Places) 262400 Revision A...
MAINTENANCE AND SERVICING 5.6 Hydraulic System Refer to this chapter for information on the hay conditioner’s hydraulic system. 5.6.1 Hydraulic Hoses and Lines Hydraulic hoses and lines should be inspected regularly for leaks. Check hydraulic hoses and lines daily for signs of leaks. WARNING •...
MAINTENANCE AND SERVICING 5.7 Feed Draper The feed draper delivers cut crop to the conditioner rolls. 5.7.1 Checking and Adjusting Feed Draper Tension In order for the draper to operate correctly, it must be tensioned properly. Inspect the tension on the draper and if necessary, adjust it.
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MAINTENANCE AND SERVICING Adjusting the feed draper tension 8. Adjust the draper tension by loosening jam nut (A) and turning bolt (B) clockwise to increase the tension on the draper (or counterclockwise to decrease the tension on the draper). Retainer disc (C) should be in the middle of indicator (D).
MAINTENANCE AND SERVICING 5.8 Drive Belt The hay conditioner’s drive belt transfers rotational force from the motor to the gears and roll coupling assembly. 5.8.1 Adjusting Drive Belt Tension The tension on the hay conditioner’s drive belt may need to be inspected and adjusted from time to time. DANGER To prevent bodily injury or death from the unexpected start-up or fall of a raised machine, always stop the engine and remove the key before leaving the operator’s seat, and always engage the safety props before going under the...
MAINTENANCE AND SERVICING 5. Loosen three motor mount nuts (A). 6. Turn tensioning nut (B) clockwise to tighten the belt, or counterclockwise to loosen it. 7. Tighten three motor mount nuts (A). 8. Measure the tension on belt (C). Continue adjusting the tension as needed.
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MAINTENANCE AND SERVICING 3. Remove wing nut and washer (A). Remove drive cover (B). Figure 5.13: Drive Belt Cover 4. Loosen nut (A). 5. Adjust nuts (B) to align the drive pulley horizontally. 6. Adjust nuts (C) to align the drive pulley vertically. 7.
MAINTENANCE AND SERVICING 5.8.3 Checking and Adjusting Drive Belt Tracking Proper tracking of the belt ensures there is no rubbing of the belt on either pulley. DANGER To prevent bodily injury or death from the unexpected start-up or fall of a raised machine, always stop the engine and remove the key before leaving the operator’s seat, and always engage the safety props before going under the machine for any reason.
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MAINTENANCE AND SERVICING 5. Place straight edge (A) across the face of the driving and driven pulleys. Ensure that the pulleys are aligned. Figure 5.18: Drive Belt and Pulleys – Conditioner Drive Motor 6. Adjust the drive pulley by loosening nut (A). 7.
MAINTENANCE AND SERVICING 5.8.4 Removing Drive Belt The drive belt may need to be removed from the hay conditioner for replacement, or to access other components. DANGER To prevent bodily injury or death from the unexpected start-up or fall of a raised machine, always stop the engine and remove the key before leaving the operator’s seat, and always engage the safety props before going under the machine for any reason.
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MAINTENANCE AND SERVICING NOTE: Before replacing the drive belt, determine the reason for the failure of the old belt. If the old belt failed due to abrasion damage, correct the drive belt tracking. For instructions, refer to 5.8.3 Checking and Adjusting Drive Belt Tracking, page to check possible cause of failure.
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MAINTENANCE AND SERVICING 9. Reinstall cover (B). Secure the cover with washer and wing nut (A). 10. Newly installed belts: check the tension on the belt again after a short run-in period (about 5 operating hours). Figure 5.25: Drive Belt Cover 262400 Revision A...
MAINTENANCE AND SERVICING 5.9 Troubleshooting Refer to the table below for instructions on diagnosing and resolving any problems which arise while the hay conditioner is operating. Section Problem Solution Symptom: Hay conditioner rolls will not turn There is an obstruction in the Turn the mechanism in reverse to 4.9.6 Unplugging Conditioner, page 87 conditioner rolls...
Chapter 6: Repair Parts Refer to this chapter for information on the replacement parts that can be ordered for a MacDon HC20 Hay Conditioner. Bold text is used to indicate updates made at the current revision level. With each new revision of the manual, previously bolded text will appear in plain font again.
REPAIR PARTS 6.2 Serial Number Breaks The side of the serial number on which the dash (–) appears determines whether the part is used "up to" or "after" the serial number given. Example: • –451189 Used on machines up to and including serial number 451189 •...
6.3 Lower Roll and Frame Assembly 262400 Revision A...
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REPAIR PARTS Part Description Number Serial Number SUPPORT – LH 159117 FRAME – RH LOWER WELDT 159118 30576 FLANGE 50182 FLANGE BEARING – SPH OD C/W COLLAR 1.5 IN BORE 30031 101173 DISC WELDT FITTING – LUBE 90° ADAPTER 50187 ROLL –...
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REPAIR PARTS Part Description Number Serial Number CHANNEL – CROSS WELDT 130470 SUPPORT – RH WELDT 130793 50182 FLANGE 30576 FLANGE BEARING – SPH OD C/W COLLAR 1.5 IN. BORE 30031 101173 DISC WELDT SUPPORT – LH WELDT 130472 FITTING – LUBRICATION 21301 ROLL –...
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REPAIR PARTS Part Description Number Serial Number SUPPORT WELDT – LH 159231 SUPPORT WELDT – RH 159582 COVER – TOP REAR WELDT 242476 TUBE – CROSS WELDT 130496 LATCH – WELDT, LH 159003 159001 LATCH SPRING – TORSION 159020 SPACER – 3/4 IN. O.D. X .120 WALL X 12 LONG 159005 LATCH –...
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REPAIR PARTS Part Description Number Serial Number NUT – FLG DT SMTH FACE .375-16 UNC 30228 NUT – WING TYPE A 3/8 NC ZP 21289 103562 BOLT-RHSN 5/8-11X1.25-GR5-AA1J 320259 NUT-HEX 1/8-27 NPSM-SPCL-GR2-ZINC 262400 Revision A...
6.6 Hydraulic Motor and Mounts 262400 Revision A...
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REPAIR PARTS Part Description Number Serial Number MOTOR – HYD 159661 SHIM – MOTOR 159716 BRACKET – HOSE SUPPORT 159775 CLAMP – DOUBLE INSULATED 3/4 IN. 300577 KIT – SPLIT FLANGE, 1 IN. CD62 138127 FLANGE – HALF SPLIT 1 IN. 194043 BOLT –...
6.7 Hydraulic Motor and Hoses 262400 Revision A...
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REPAIR PARTS Part Description Number Serial Number MOTOR – HYDRAULIC (refer to 6.6 Hydraulic Motor and Mounts, page 122) FITTING – ADAPTER HYD 21881 HOSE – HYD CASE DRAIN 159770 FITTING – ADAPTER 136194 COUPLER – HYDRAULIC, 1/2 IN FEMALE FF 135474 COUPLER –...
6.9 Gears and Roll Coupling Assembly 262400 Revision A...
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REPAIR PARTS Part Description Number Serial Number HUB – MACHINING 159550 GEAR – 40T 130680 129932 DISK GEAR – 49T 130677 BEARING – BALL CYL 159474 RING – INT RETAINING 38854 SHAFT – IDLER 130687 130685 PLATE, SIDE HEAT TREATMENT 130689 SPACER 130694...
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REPAIR PARTS Part Description Number Serial Number ASSY – ROCK GRATE WELDT 242417 DRAPER – 1850 WIDE X 2497 LG 242407 STRAP – DRAPER CONN 130283 FRAME – FEED DECK WELDT 242402 ROLLER – DRIVE 4 IN WELDT 159704 ROLLER – IDLER WELDT 242408 MOTOR –...
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REPAIR PARTS Part Description Number Serial Number NUT – HEX SM FLG M12 X 1.75-8-AA1J 136036 NUT – HEX M12 X 1.75-8-AA1J 184694 262400 Revision A...
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REPAIR PARTS Part Description Number Serial Number SUPPORT – LH WELDT COND 242431 SUPPORT – RH WELDT COND 242432 BRACKET – SPACER 242434 SUPPORT – RH COND LOWER 242428 SUPPORT – LH COND LOWER 242427 SUPPORT WELDT – RH AND LH (Refer to Section 6.5 Cover and Supports, page 118.)
Chapter 7: Reference Refer to the contents of this chapter as needed. 7.1 Torque Specifications The following tables provide torque values for various bolts, cap screws, and hydraulic fittings. Refer to these values only when no other torque value has been specified in a given procedure. •...
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REFERENCE Table 7.2 Metric Class 8.8 Bolts and Class 9 Distorted Thread Nut Torque (Nm) Torque (lbf·ft) (*lbf·in) Nominal Size (A) Max. Max. Min. Min. 3-0.5 3.5-0.6 4-0.7 5-0.8 6-1.0 8-1.25 18.8 20.8 *167 *185 10-1.5 12-1.75 Figure 7.2: Bolt Grades 14-2.0 16-2.0 20-2.5...
REFERENCE 7.1.3 O-Ring Boss Hydraulic Fittings – Adjustable The standard torque values are provided for adjustable hydraulic fittings. If a procedure specifies a different torque value for the same type and size of fitting found in this topic, refer to the value specified in the procedure instead. 1.
REFERENCE 2. Apply hydraulic system oil to O-ring (B). 3. Align the tube or hose assembly so that the flat face of sleeve (A) or (C) comes into full contact with O-ring (B). 4. Thread tube or hose nut (D) until it is hand-tight. The nut should turn freely until it bottoms out.
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REFERENCE 4. Torque the connector to the appropriate torque angle. The turns from finger tight (TFFT) and flats from finger tight (FFFT) values are shown in Table 7.9, page 146. Ensure that the tube end of a shaped connector (typically a 45° or 90° elbow) is aligned to receive the incoming tube or hose assembly.
REFERENCE 7.2 Conversion Chart This manual uses both SI units (including metric) and US customary units (sometimes referred to as standard units) of measurement. A list of those units along with their abbreviations and conversion factors is provided here for your reference.
Chapter 8: Appendix – Hydraulics Use this section for additional hydraulic information to help with diagnosing hydraulic issues. 8.1 Hydraulic Schematics For an explanation of the acronyms used in this section, refer to 2.1 Definitions, page 262400 Revision A...
The completed checklist should be retained either by the Operator or the Dealer. CAUTION Carefully follow the instructions given. Be alert for safety-related messages, which bring your attention to hazards and unsafe practices. Conditioner Serial Number: _____________________________________________ Table .1 HC20 Hay Conditioner Predelivery Checklist ü ü Item Reference —...
Recommended Lubricants Ensure your machine operates at top efficiency by using clean fluids and lubricants only. • Use clean containers to handle all fluids and lubricants. • Store fluids and lubricants in an area protected from dust, moisture, and other contaminants. Table: Recommended Lubricants Specification Description...
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CUSTOMERS M M a a c c D D o o n n . . c c o o m m DEALERS P P o o r r t t a a l l . . M M a a c c D D o o n n . . c c o o m m Trademarks of products are the marks of their respective manufacturers and/or distributors.
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