MacDon FFT FD75 User manual

FD75
FlexDraper®® Combine Header with
CA25 Combine Adapter
Unload and Assembly Instructions (North America)
214325 Revision A
2018 Model Year
Original Instruction
Featuring MacDon FLEX-FLOAT Technology™
The harvesting specialists.

FD75 FlexDraper®Combine Header
Published: June 2017

Introduction
This instruction manual describes the unloading, setup, and predelivery requirements for the MacDon FD75
FlexDraper®Header with CA25 Combine Adapter.
To ensure your customers receive the best performance and safety from this product, carefully follow the unload
and assembly procedure from the beginning through to completion.
Carefully read all the material provided before attempting to unload, assemble, or use the machine.
Retain this instruction for future reference.
NOTE:
Keep your MacDon publications up-to-date. The latest version can be downloaded from our website (www.macdon.
com) or from our Dealer portal (https://portal.macdon.com) (login required).
A French language version of this manual can be downloaded from our MacDon International website (www.
macdon.com) and the Dealer portal (https://portal.macdon.com) (login required).
214325 iRevision A

List of Revisions
The following list provides an account of major changes from the previous version of this document.
Summary of Change Location
The name Lexion changed to CLAAS—representing a
wider product range.
Throughout
Filler cap now includes flange head screws for better fit. 3.2.1 Installing Filler Cap, page 21
Added topic for removing filler plates from transition
frame when attaching to AGCO Class 7 or 8 combines.
Preparing Transition Frame: AGCO Combines, page 29
Harness MD #220337 superseded by MD #279753.
•Installing Reel Fore-Aft/Header Tilt Selector Switch
and Harness: CLAAS 500 Series, page 52
•Installing Reel Fore-Aft/Header Tilt Selector Switch
and Harness: CLAAS 700 Series, page 61
Deleted step as per product support feedback. 4.7.1 Checking Pointed Guard Hold-Downs, page 95
Modified instruction and image; header must be in full
smile mode. 4.8 Centering Reel, page 97
Moved procedure to keep reel topics together. 4.9 Measuring and Adjusting Reel Clearance to
Cutterbar, page 98
Added reel cam checking topic. 4.9.3 Checking and Adjusting Reel Cam, page 101
Added topic for adjusting header level. 4.10 Checking and Adjusting Header Levelness, page
103
Removed Wing Balance chart. 4.12.2 Adjusting Wing Balance, page 115
Added topic for checking and adjusting the draper
tension.
4.14 Checking and Adjusting Feed Draper Tension,
page 121
Added header controls topic for Case 8010 combines. Setting Header Controls (Case 8010), page 150
•Added checking feed draper tension.
•Added note to install options before checking float.
•Moved Check header float ahead of Check wing
balance.
•Added remove all shipping wires.
8 Predelivery Checklist, page 295
214325 ii Revision A

214325 iii Revision A
Introduction................................................................................................................................................i
List of Revisions ........................................................................................................................................ ii
Chapter 1: Safety .................................................................................................................................... 1
1.1 Signal Words .......................................................................................................................................1
1.2 General Safety.....................................................................................................................................2
1.3 Safety Signs ........................................................................................................................................4
Chapter 2: Unloading Header and Adapter ...................................................................................... 5
2.1 Unloading Header and Adapter from Trailer ...........................................................................................5
2.2 Lowering Header .................................................................................................................................7
2.3 Removing Shipping Stands.................................................................................................................10
Chapter 3: Assembling Header and Adapter ................................................................................. 15
3.1 Attaching Reel Lift Cylinders ...............................................................................................................15
3.2 Setting up Combine Adapter ...............................................................................................................21
3.2.1 Installing Filler Cap....................................................................................................................21
3.2.2 Removing Auger Flighting Extensions.........................................................................................23
3.2.3 Removing Stripper Bars.............................................................................................................23
3.2.4 Replacing Feeder Deflectors: New Holland CR Combines............................................................24
3.3 Attaching Header to Combine .............................................................................................................26
3.3.1 Challenger, Gleaner, and Massey Ferguson Combines ................................................................26
Installing Reel Fore-Aft/Header Tilt Selector Switch and Harness .................................................26
Preparing Transition Frame: AGCO Combines............................................................................29
Attaching Header to Challenger, Gleaner, or Massey Ferguson Combine......................................30
3.3.2 Case IH Combines ....................................................................................................................34
Attaching Header to Case IH Combine .......................................................................................34
3.3.3 John Deere Combines ...............................................................................................................40
Installing Reel Fore-Aft/Header Tilt Switch: S and T Series Combines ..........................................40
Installing Reel Fore-Aft/Header Tilt Switch: 50, 60, and 70 Series Combines.................................45
Attaching Header to John Deere Combine..................................................................................49
3.3.4 CLAAS Combines .....................................................................................................................52
Installing Reel Fore-Aft/Header Tilt Selector Switch and Harness: CLAAS 500 Series....................52
Installing Reel Fore-Aft/Header Tilt Selector Switch and Harness: CLAAS 700 Series....................61
Attaching Header to CLAAS Combine ........................................................................................69
3.3.5 New Holland Combines .............................................................................................................73
Attaching Header to New Holland CR/CX Combine .....................................................................73
3.4 Completing Header Assembly.............................................................................................................79
3.4.1 Attaching Cam Arms..................................................................................................................79
3.4.2 Repositioning Gearbox ..............................................................................................................80
3.4.3 Removing Shipping Supports .....................................................................................................81
3.4.4 Positioning Transport Lights .......................................................................................................82
3.4.5 Opening Endshield....................................................................................................................83
3.4.6 Removing Crop Dividers from Storage ........................................................................................84
3.4.7 Installing Crop Dividers without Latch Option...............................................................................84
TABLE OF CONTENTS

214325 iv Revision A
3.4.8 Installing Crop Dividers with Latch Option ...................................................................................86
3.4.9 Closing Endshield .....................................................................................................................87
3.4.10 Installing Crop Divider Rods .....................................................................................................87
3.4.11 Installing Options.....................................................................................................................88
Chapter 4: Performing Predelivery Checks ................................................................................... 89
4.1 Checking Transport/Stabilizer Tire Pressure.........................................................................................89
4.2 Checking Wheel Bolt Torque ...............................................................................................................90
4.3 Checking Knife Drive Box ...................................................................................................................91
4.4 Checking Oil Level in Header Drive Gearbox........................................................................................92
4.5 Checking Oil Level in Hydraulic Reservoir ............................................................................................93
4.6 Checking and Adjusting Non-Timed Knife Drive Belt Tension.................................................................94
4.7 Checking and Adjusting Knife Hold-Downs ..........................................................................................95
4.7.1 Checking Pointed Guard Hold-Downs.........................................................................................95
Adjusting Pointed Guard Hold-Downs ........................................................................................96
Adjusting Hold-Down at Double-Knife Center Pointed Guard .......................................................96
4.8 Centering Reel...................................................................................................................................97
4.9 Measuring and Adjusting Reel Clearance to Cutterbar ..........................................................................98
4.9.1 Measuring Reel Clearance.........................................................................................................98
4.9.2 Adjusting Reel Clearance ........................................................................................................100
4.9.3 Checking and Adjusting Reel Cam............................................................................................101
4.10 Checking and Adjusting Header Levelness ......................................................................................103
4.11 Checking and Adjusting Header Float ..............................................................................................105
4.12 Checking and Adjusting Header Wing Balance ................................................................................. 110
4.12.1 Checking Wing Balance ......................................................................................................... 110
4.12.2 Adjusting Wing Balance ......................................................................................................... 115
4.13 Adjusting Auger to Pan Clearance ................................................................................................... 119
4.14 Checking and Adjusting Feed Draper Tension ..................................................................................121
4.15 Checking and Adjusting Side Draper Tension ...................................................................................122
4.16 Checking and Adjusting Skid Shoes ................................................................................................125
4.17 Checking Draper Seal ....................................................................................................................126
4.18 Lubricating Header.........................................................................................................................128
4.18.1 Greasing Procedure ..............................................................................................................128
4.18.2 Lubrication Points..................................................................................................................129
4.19 Checking and Adjusting Endshields .................................................................................................135
4.20 Checking Manuals..........................................................................................................................137
Chapter 5: Setting up Auto Header Height Control....................................................................139
5.1 Auto Header Height Control (AHHC)..................................................................................................139
5.1.1 Sensor Output Voltage Range –Combine Requirements ...........................................................140
Manually Checking Voltage Range...........................................................................................141
Adjusting Voltage Limits ..........................................................................................................142
TABLE OF CONTENTS

214325 vRevision A
5.1.2 Case IH 2300/2500 and 5088/6088/7088 Combines ..................................................................144
Engaging Auto Header Height Control (Case IH 2300) ..............................................................144
Calibrating Auto Header Height Control (AHHC) (Case IH 2300/2500 and 5088/6088/
7088) ........................................................................................................................145
Setting Sensitivity of Auto Header Height Control (Case IH 2300/2500 and 5088/6088/
7088) ........................................................................................................................146
5.1.3 Case IH 5130/6130/7130, 7010/8010, 7120/8120/9120, and 7230/8230/9230 Combines..............148
Checking Voltage Range from Combine Cab (Case 8010) .........................................................148
Setting Header Controls (Case 8010).......................................................................................150
Checking Voltage Range from Combine Cab (Case IH 5130/6130/7130, 7010/8010;
7120/8120/9120; 7230/8230/9230)..............................................................................151
Calibrating Auto Header Height Control (Case IH 5130/6130/7130, 7010/8010;
7120/8120/9120; 7230/8230/9230)..............................................................................154
Calibrating Auto Header Height Control (Case Combines with Version 28.00 or Higher
Software)...................................................................................................................156
Setting Preset Cutting Height (Case 7010/8010, 7120/8120/9120, 7230/8230/9230) ...................158
5.1.4 Challenger 6 and 7 Series Combines ........................................................................................159
Checking Voltage Range from Combine Cab (Challenger 6 and 7 Series) ...................................159
Engaging Auto Header Height Control (Challenger 6 Series)......................................................161
Calibrating Auto Header Height Control (Challenger 6 Series)....................................................162
Adjusting Header Height (Challenger 6 Series) .........................................................................164
Adjusting Header Raise/Lower Rate (Challenger 6 Series) ........................................................164
Setting Sensitivity of Auto Header Height Control (Challenger 6 Series)......................................165
5.1.5 Gleaner R62/R72 Combines ....................................................................................................166
System Requirements (Gleaner R62/R72)................................................................................166
Calibrating Auto Header Height Control (Gleaner R62/R72) .......................................................167
Setting Sensitivity of Auto Header Height Control (Gleaner R62/R72 Series)...............................167
5.1.6 Gleaner R65/R66/R75/R76 and S Series Combines (Except S9 Series) ......................................170
Checking Voltage Range from Combine Cab (Gleaner R65/R66/R75/R76 and S Series) .............170
Engaging Auto Header Height Control (Gleaner R65/R66/R75/R76 and S Series) .......................171
Calibrating Auto Header Height Control (Gleaner R65/R66/R75/R76 and S Series) .....................172
Turning Accumulator Off (Gleaner R65/R66/R75/R76 and S Series)...........................................174
Adjusting Header Raise/Lower Rate (Gleaner R65/R66/R75/R76 and S Series)..........................174
Adjusting Ground Pressure (Gleaner R65/R66/R75/R76 and S Series).......................................175
Adjusting Sensitivity of Auto Header Height Control (Gleaner R65/R66/R75/R76 and
S Series) ...................................................................................................................176
Troubleshooting Alarms and Diagnostic Faults (Gleaner R65/R66/R75/R76 and
S Series) ...................................................................................................................177
5.1.7 Gleaner S9 Series Combines ...................................................................................................179
Setting up Header (Gleaner S9 Series) ....................................................................................179
Setting up Reel Settings (Gleaner S9 Series)............................................................................183
Setting up Automatic Header Controls (Gleaner S9 Series)........................................................185
Calibrating Header (Gleaner S9 Series) ...................................................................................187
Operating with a Gleaner S9 Series Combine ...........................................................................190
Header In-Field Settings .........................................................................................................192
5.1.8 John Deere 50 Series Combines ..............................................................................................193
Output Voltage Range.............................................................................................................193
Calibrating Auto Header Height ...............................................................................................197
Setting Sensitivity of Auto Header Height Control ......................................................................199
Adjusting Threshold for Drop Rate Valve ..................................................................................200
Operating Auto Header Height.................................................................................................201
Replacing Auto Header Height Control (AHHC) Sensor .............................................................203
TABLE OF CONTENTS

214325 vi Revision A
5.1.9 John Deere 60 Series Combines ..............................................................................................204
Checking Voltage Range from Combine Cab (John Deere 60 Series) .........................................204
Calibrating Auto Header Height Control (John Deere 60 Series).................................................206
Turning Accumulator Off (John Deere 60 Series) ......................................................................207
Setting Sensing Grain Header Height to 50 (John Deere 60 Series)............................................208
Setting Sensitivity of Auto Header Height Control (John Deere 60 Series)...................................209
Adjusting Threshold for Drop Rate Valve (John Deere 60 Series) ...............................................210
5.1.10 John Deere 70 Series Combines ............................................................................................210
Checking Voltage Range from Combine Cab (John Deere 70 Series) .........................................210
Calibrating Feeder House Speed (John Deere 70 Series) ..........................................................214
Calibrating Auto Header Height Control (John Deere 70 Series).................................................214
Setting Sensitivity of Auto Header Height Control (John Deere 70 Series)...................................215
Adjusting Manual Header Raise/Lower Rate (John Deere 70 Series)..........................................216
5.1.11 John Deere S and T Series Combines.....................................................................................217
Checking Voltage Range from Combine Cab (John Deere S and T Series) .................................217
Calibrating Feeder House Fore/Aft Tilt Range (John Deere S and T Series) ................................220
Calibrating Auto Header Height Control (John Deere S and T Series) .........................................223
Setting Sensitivity of Auto Header Height Control (John Deere S and T Series) ...........................225
Adjusting Manual Header Raise/Lower Rate (John Deere S and T Series) ..................................226
Setting Preset Cutting Height (John Deere S and T Series)........................................................227
5.1.12 CLAAS 500 Series Combines.................................................................................................229
Auto Header Height Sensor Voltage Requirements ...................................................................229
Checking Sensor’s Output Voltage Range ................................................................................230
Calibrating Auto Header Height System ...................................................................................231
Setting Cutting Height (CLAAS 500 Series) ..............................................................................234
Setting Preset Cutting Height (CLAAS 500 Series)....................................................................234
Setting Cutting Height Manually (CLAAS 500 Series) ................................................................235
Setting Sensitivity of Auto Header Height Control (CLAAS 500 Series) .......................................235
Adjusting Auto Reel Speed (CLAAS 500 Series) .......................................................................238
5.1.13 CLAAS 700 Series Combines.................................................................................................241
Auto Header Height Sensor Voltage Requirements ...................................................................241
Checking Sensor’s Output Voltage Range ................................................................................241
Calibrating Auto Header Height System ...................................................................................243
Setting Cutting Height (CLAAS 700 Series) ..............................................................................246
Setting Sensitivity of Auto Header Height Control (CLAAS 700 Series) .......................................246
Adjusting Auto Reel Speed (CLAAS 700 Series) .......................................................................248
5.1.14 New Holland Combines CX/CR Series (CR Series –Model Year 2014 and Earlier) ....................250
Checking Voltage Range from Combine Cab (New Holland) ......................................................250
Engaging Auto Header Height Control (New Holland CR/CX Series) ..........................................252
Calibrating Auto Header Height Control (New Holland CR/CX Series) ........................................253
Adjusting Header Raise Rate (New Holland CR/CX Series) .......................................................255
Setting Header Lower Rate to 50 (New Holland CR/CX Series)..................................................256
Setting Sensitivity of Auto Header Height Control to 200 (New Holland CR/CX Series).................256
Setting Preset Cutting Height (New Holland CR/CX Series) .......................................................257
Configuring Reel Fore-Aft, Header Tilt, and Header Type (New Holland CR Series).....................258
5.1.15 New Holland Combines (CR Series –Model Year 2015 and Later) ............................................260
Engaging Auto Header Height Control (New Holland CR Series) ................................................260
Checking Voltage Range from Combine Cab (New Holland CR Series) ......................................262
Calibrating Auto Header Height Control (New Holland CR Series) ..............................................265
Setting Auto Height (New Holland CR Series) ...........................................................................268
Setting Maximum Work Height (New Holland CR Series)...........................................................269
5.1.16 Sensor Operation ..................................................................................................................270
TABLE OF CONTENTS

214325 vii Revision A
Chapter 6: Running up Header........................................................................................................273
6.1 Performing Post Run-Up Adjustments ...............................................................................................276
6.1.1 Adjusting Knife and Guards......................................................................................................276
Chapter 7: Reference .........................................................................................................................279
7.1 Torque Specifications .......................................................................................................................279
7.1.1 SAE Bolt Torque Specifications ................................................................................................279
7.1.2 Metric Bolt Specifications .........................................................................................................281
7.1.3 Metric Bolt Specifications Bolting into Cast Aluminum ................................................................284
7.1.4 Flare-Type Hydraulic Fittings....................................................................................................284
7.1.5 O-Ring Boss (ORB) Hydraulic Fittings (Adjustable) ....................................................................286
7.1.6 O-Ring Boss (ORB) Hydraulic Fittings (Non-Adjustable).............................................................288
7.1.7 O-Ring Face Seal (ORFS) Hydraulic Fittings .............................................................................289
7.1.8 Tapered Pipe Thread Fittings ...................................................................................................290
7.2 Conversion Chart.............................................................................................................................291
7.3 Definitions .......................................................................................................................................292
Chapter 8: Predelivery Checklist ....................................................................................................295
TABLE OF CONTENTS

214325 1Revision A
1 Safety
1.1 Signal Words
Three signal words, DANGER, WARNING, and CAUTION, are used to alert you to hazardous situations. The
appropriate signal word for each situation has been selected using the following guidelines:
DANGER
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury. It
may also be used to alert against unsafe practices.
CAUTION
Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury. It
may be used to alert against unsafe practices.

214325 2Revision A
1.2 General Safety
Figure 1.1: Safety Equipment
CAUTION
The following are general farm safety precautions that
should be part of your operating procedure for all types
of machinery.
Protect yourself.
•When assembling, operating, and servicing machinery,
wear all protective clothing and personal safety devices
that could be necessary for job at hand. Do NOT take
chances. You may need the following:
•Hard hat
•Protective footwear with slip resistant soles
•Protective glasses or goggles
•Heavy gloves
•Wet weather gear
•Respirator or filter mask
Figure 1.2: Safety Equipment
•Be aware that exposure to loud noises can cause hearing
impairment or loss. Wear suitable hearing protection
devices such as ear muffs or ear plugs to help protect
against loud noises.
Figure 1.3: Safety Equipment
•Provide a first aid kit for use in case of emergencies.
•Keep a fire extinguisher on the machine. Be sure fire
extinguisher is properly maintained. Be familiar with its
proper use.
•Keep young children away from machinery at all times.
•Be aware that accidents often happen when Operator is
tired or in a hurry. Take time to consider safest way.
Never ignore warning signs of fatigue.
SAFETY

214325 3Revision A
Figure 1.4: Safety around Equipment
•Wear close-fitting clothing and cover long hair. Never
wear dangling items such as scarves or bracelets.
•Keep all shields in place. NEVER alter or remove safety
equipment. Make sure driveline guards can rotate
independently of shaft and can telescope freely.
•Use only service and repair parts made or approved by
equipment manufacturer. Substituted parts may not meet
strength, design, or safety requirements.
Figure 1.5: Safety around Equipment
•Keep hands, feet, clothing, and hair away from moving
parts. NEVER attempt to clear obstructions or objects
from a machine while engine is running.
•Do NOT modify machine. Unauthorized modifications
may impair machine function and/or safety. It may also
shorten machine’s life.
•To avoid bodily injury or death from unexpected startup of
machine, ALWAYS stop the engine and remove the key
from the ignition before leaving the operator’s seat for
any reason.
Figure 1.6: Safety around Equipment
•Keep service area clean and dry. Wet or oily floors are
slippery. Wet spots can be dangerous when working with
electrical equipment. Be sure all electrical outlets and
tools are properly grounded.
•Keep work area well lit.
•Keep machinery clean. Straw and chaff on a hot engine is
a fire hazard. Do NOT allow oil or grease to accumulate
on service platforms, ladders, or controls. Clean
machines before storage.
•NEVER use gasoline, naphtha, or any volatile material for
cleaning purposes. These materials may be toxic and/or
flammable.
•When storing machinery, cover sharp or extending
components to prevent injury from accidental contact.
SAFETY

214325 4Revision A
1.3 Safety Signs
Figure 1.7: Operator’s Manual Decal
•Keep safety signs clean and legible at all times.
•Replace safety signs that are missing or become illegible.
•If original parts on which a safety sign was installed are
replaced, be sure repair part also bears current
safety sign.
•Safety signs are available from your MacDon Dealer.
SAFETY

214325 5Revision A
2 Unloading Header and Adapter
Perform all procedures in order in which they are listed.
2.1 Unloading Header and Adapter from Trailer
The following procedure applies when two headers are shipped on a trailer.
CAUTION
To avoid injury to bystanders from being struck by machinery, do NOT allow people to stand in
unloading area.
CAUTION
Equipment used for unloading must meet or exceed requirements specified below. Using inadequate
equipment may result in chain breakage, vehicle tipping, or machine damage.
IMPORTANT:
Forklifts are normally rated with load centered 610 mm (24 in.) from back end of forks. To obtain forklift capacity for
a load centered at 1220 mm (48 in.), check with your forklift distributor.
Figure 2.1: Minimum Lifting Capacity
A - Center of Gravity of Load
B - Load Center 1220 mm (48 in.) from Back of Forks
C - Minimum Fork Length 1981 mm (78 in.)
Table 2.1 Lifting Vehicle
Minimum Lifting
Capacity
4082 kg (9000 lb.)
load center (A) at 1220 mm (48 in.)
(B) from back of forks
Minimum Fork
Length (C) 1981 mm (78 in.)
To unload headers and adapters from a trailer, follow these steps:
1. Move trailer into position and block trailer wheels.
2. Lower trailer storage stands.
IMPORTANT:
Avoid lifting second header and ensure forks do not interfere with shipping frame. If forks contact second
header, damage to headers may occur.

214325 6Revision A
Figure 2.2: Header Shipping Supports
3. Approach header and line up forks (A) with fork slider
channels (B) under adapter frame.
4. Slide forks (A) underneath fork slider channels (B) as
far as possible without contacting shipping support of
opposite header.
5. Remove hauler’s tie-down straps, chains, and
wooden blocks.
WARNING
Be sure forks are secure before moving away from
load. Stand clear when lifting.
6. Slowly raise header off trailer deck.
7. Back up until unit clears trailer and slowly lower to
150 mm (6 in.) from ground.
Figure 2.3: Header after Unloading
8. Take header to storage or setup area. Ensure ground is
flat and free of rocks or debris that could damage
header.
9. Repeat Steps 3, page 6 to 8, page 6 for second header.
10. Check for shipping damage and missing parts.
UNLOADING HEADER AND ADAPTER

214325 7Revision A
2.2 Lowering Header
Figure 2.4: Underside of Header
1. Approach underside of header with lifting vehicle.
Figure 2.5: Header before Lowering
2. Attach chain to shipping support (A) at center reel arm.
IMPORTANT:
Do NOT attempt to lift at cutterbar when unloading from
trailer. This procedure is ONLY for laying machine over
into working position.
CAUTION
Stand clear of header when lowering. Machine
may swing.
UNLOADING HEADER AND ADAPTER

214325 8Revision A
Figure 2.6: Lowering Header
3. Back up SLOWLY while lowering forks until header
rests on ground.
UNLOADING HEADER AND ADAPTER

214325 9Revision A
Figure 2.7: Blocks at Each End of Cutterbar
4. Place 150 mm (6 inch) blocks (A) under each end and
at center of cutterbar.
5. Lower header onto blocks, and remove chain.
UNLOADING HEADER AND ADAPTER

214325 10 Revision A
2.3 Removing Shipping Stands
NOTE:
Unless otherwise specified, discard stands, shipping material, and hardware. The removable stands are
painted yellow.
Figure 2.8: Fork Slider Channels
1. Remove two bolts (A) securing right fork slider channel
to brace (C).
NOTE:
To access bolts at lower fork slider brace, header must
be supported on 150 mm (6 in.) blocks. Refer to Step 4,
page 9.
2. Remove two bolts (B) securing right fork slider channel
to lower brace (D).
3. Repeat steps above for left side.
Figure 2.9: Lower Brace Removal
4. Remove bottom brace (A).
UNLOADING HEADER AND ADAPTER