MASSEY FERGUSON 8792 User manual

© AGCO Corporation, 2010 All rights reserved.
Part Number 4283409M2 (English)
Printed in U.S.A.
November 2010
Massey Ferguson®
8792 / 8776
Planter
SERVICE MANUAL
4283409M2
CONTENTS
GENERAL INFORMATION ....................................................................................................................................01
ROW UNIT ..............................................................................................................................................................02
DRIVE TRANSMISSION.........................................................................................................................................03
AIR SYSTEM ..........................................................................................................................................................04
HYDRAULICS ........................................................................................................................................................05
ELECTRICAL .........................................................................................................................................................06
FRAME ...................................................................................................................................................................07
TROUBLESHOOTING............................................................................................................................................08
CONSOLES AND MONITORS...............................................................................................................................09

4283409M2 01-i
Contents
Massey Ferguson®
8792 / 8776
Planter
SERVICE MANUAL
4283409M2
01 - General Information
Contents
GENERAL INFORMATION
General Information ....................................................................................................................................... 01-1
Serial Number ................................................................................................................................................ 01-2
Serial Number Description (2010 and up) ..................................................................................................... 01-2
SAFETY
Safety Alert Symbol ....................................................................................................................................... 01-3
Safety Messages ........................................................................................................................................... 01-3
Informational Messages ................................................................................................................................. 01-4
Safety Signs ................................................................................................................................................... 01-4
General Operation and Service ..................................................................................................................... 01-5
Operating ................................................................................................................................................. 01-5
Agricultural Chemicals ............................................................................................................................. 01-6
Transporting ............................................................................................................................................ 01-6
Servicing .................................................................................................................................................. 01-7
SPECIFICATIONS
Stack Fold ...................................................................................................................................................... 01-9
General Information ................................................................................................................................. 01-9
8792-36 ................................................................................................................................................... 01-9
8792-38 ................................................................................................................................................... 01-9
8792-40 ................................................................................................................................................... 01-9
8776 ...................................................................................................................................................... 01-10
Air System ............................................................................................................................................. 01-10
Pneumatic Down Pressure .................................................................................................................... 01-10
Hydraulic System .................................................................................................................................. 01-11
Approximate Shipping Weight ............................................................................................................... 01-12
Monitor .................................................................................................................................................. 01-12
Electronic Seed Drive Controller ........................................................................................................... 01-12
Tractor Requirements ............................................................................................................................ 01-13
Maximum Speed ................................................................................................................................... 01-13
INDEX ............................................................................................................................................................. 01-15
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01-ii 4283409M2
Contents
NOTES
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4283409M2 01-1
General Information
GENERAL INFORMATION
GENERAL INFORMATION
FIG. 1: Mounted Stack Fold 12 Row Planter
The stacking toolbar frame design of the 8700 Series
Mounted Stack Fold Planters provides narrow transport
widths and allows folding for transport without emptying
the hoppers. The planters also include low profile, rear
fold markers. The models feature the 8000 Series air
seed metering system for accurate seed singulation and
placement, and are designed for use in conventional,
mulch till or ridge till conditions.
Two basic models are available:
Model 8792, 12 row wide (36, 38, or 40 inch)
Model 8776, 16 row narrow (30 inch)
mWARNING: Pictures in this manual may
show protective shields and guards opened
or removed for illustration purposes. Be
sure all shields and guards are in place
during operation.
This manual was prepared from the latest product
information available at publication time. The Company
reserves the right to make changes at any time without
notice or obligation.
FIG. 1
Q0106765
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General Information
01-2 4283409M2
SERIAL NUMBER
FIG. 2: The serial number plate (1) is found on the rear
of the frame near the blower.
SERIAL NUMBER DESCRIPTION (2010
AND UP)
FIG. 3: Description of the serial number for model year
2010 and up.
(1) Beginning symbol
(2) World Manufacturer Code
(3) Brand Code
(4) Model Identifier (Model number)
(5) Check Letter (0 or used if model identifier is five
digits)
(6) Model Year Code (A=2010, B=2011, C=2012, and
on)
(7) Plant Code
(8) Family Code
(9) Unit Number for the Year
(10) Ending symbol
NOTE: For serial number breaks in this manual, only the
information from the model year code and
following will be given.
FIG. 2
D-16109
1
FIG. 3
**
AGC
2 3 4 5 76 981 10
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4283409M2 01-3
Safety
SAFETY
SAFETY ALERT SYMBOL
FIG. 4: The safety alert symbol means ATTENTION!
BECOME ALERT! YOUR SAFETY IS INVOLVED!
Look for the safety alert symbol both in this manual and
on safety signs on this machine. The safety alert symbol
will direct your attention to information that involves your
safety and the safety of others.
SAFETY MESSAGES
FIG. 5: The words DANGER, WARNING or CAUTION
are used with the safety alert symbol. Learn to recognize
these safety alerts and follow the recommended
precautions and safety practices.
mDANGER: Indicates an imminently
hazardous situation that, if not avoided, will
result in DEATH OR VERY SERIOUS
INJURY.
mWARNING: Indicates a potentially
hazardous situation that, if not avoided,
could result in DEATH OR SERIOUS
INJURY.
mCAUTION: Indicates a potentially
hazardous situation that, if not avoided,
may result in MINOR INJURY.
FIG. 4
Saf
FIG. 5
WC1957
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Safety
01-4 4283409M2
INFORMATIONAL MESSAGES
The words IMPORTANT and NOTE are not related to
personal safety, but are used to give additional
information and tips for operating or servicing this
equipment.
IMPORTANT: Identifies special instructions or
procedures which, if not strictly observed, can
result in damage to or destruction of the
machine, process, or its surroundings.
NOTE: Identifies points of particular interest for more
efficient and convenient repair or operation.
SAFETY SIGNS
mWARNING: DO NOT remove or obscure
safety signs. Replace any safety signs that
are not readable or are missing.
Replacement signs are available from your
dealer in the event of loss or damage. The
actual location of the safety signs is
illustrated at the end of this section.
If a used machine has been purchased, make sure all
safety signs are in the correct location and can be read.
Replace any safety signs that can not be read or are
missing. Replacement safety signs are available from
your dealer.
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4283409M2 01-5
Safety
GENERAL OPERATION AND SERVICE
Operating
• Read and understand all the operating and safety
precautions before operating machinery.
• In addition to equipment configuration and design,
hazard control and accident prevention depend on
awareness, concern, prudence and proper training of
personnel in the operation, maintenance, transport
and storage of equipment.
• Always raise implement, shut off tractor engine, set
the parking brake, shift to park position (or neutral)
remove the key and install cylinder lockup channels
before working around the machine.
• Avoid working under the planter. However, if it
becomes unavoidable to do so, make sure planter is
securely blocked and cylinder lockup channels are in
place.
• Do not attempt to lubricate or adjust planter while the
machine is in operation.
• Machinery operation must be performed only by
persons who are responsible and delegated to do so.
• Only the operator must be permitted on the tractor
(unless tractor has a factory-installed instructor seat)
when tractor and planter are moving. Never permit
anyone to ride on the planter.
• Avoid wearing loose-fitting clothing and jewelry.
Always tie up long hair that can be caught in moving
parts.
• Wear personal protective equipment (PPE) such as,
but not limited to, protection for the eyes, lungs, ears,
head, hands and feet when operating, servicing or
repairing equipment.
• Make sure bystanders are clear before operating
tractor or machine.
• Do not leave the tractor or implement unattended
with the engine running.
• Never attempt to operate the planter unless seated in
the operator’s seat on the tractor.
• Tractor must be equipped with a rollover protective
structure (ROPS), and a seat belt. Use seat belt
during operation.
• Make sure the tractor is in good operating condition,
and has adequate braking capabilities.
• Do not dismount from the moving tractor.
• Regulate ground speed to field conditions, and
maintain control at all times.
• Watch for overhead wires or other obstructions when
raising markers, and when moving planter with
marker(s) raised.
• Disconnect and store the planter where children do
not normally play. Stabilize the planter by using
suitable supports, and block the wheels.
• Always lower planter when not in use and relieve
pressure in the hoses and cylinders.
• Do not allow children to ride on, play on, or operate
equipment. Always keep children away from
equipment operating, servicing, and storage areas.
• Do not stand between tractor and planter to install
hitch pin when tractor engine is running.
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01-6 4283409M2
Safety
Agricultural Chemicals
• Ag chemicals can be very hazardous. Improper use
of fertilizer, fungicides, herbicides, insecticides and
pesticides can injure people, plants, animals, soil and
other people's property.
• Always read and follow all manufacturers' instructions
before opening any chemical container.
• Even if you think you know them, read and follow
instructions each time you use a chemical.
• Use same precautions when adjusting, servicing,
cleaning or storing planter as used when installing
chemicals into hoppers or tanks.
• Inform anyone who comes in contact with chemicals
of the potential hazards involved and the safety
precautions required.
• Stand upwind and away from smoke from a chemical
fire.
• Store or dispose of all unused chemicals only in a
manner as specified by the chemical manufacturer.
Transporting
• Use tractor of recommended size and weight to tow
the machine.
• Use good judgment when transporting planter on the
highway. Maintain complete control of machine at all
times.
• Comply with state and local laws governing highway
safety and regulations when moving machinery.
• Always make the necessary safety precautions prior
to transporting machine on public roads.
• Make sure the SMV (Slow Moving Vehicle) emblem is
clean and visible.
• Use flashing warning lights except when prohibited
by law.
• Watch for overhead wires or other obstructions when
transporting the planter with markers raised.
• Always fasten the transport safety chain to the tractor
drawbar and use the retainer on the hitch pin.
• Always install the marker lockup pins before
transporting or parking the planter.
• Always install the wheel cylinder lockup channels
before transporting or parking the planter.
• Vertical Fold Models: Always install wing lockup pins
before transporting or parking planter.
• Do not transport planter in excess of 25 kph (15
mph).
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4283409M2 01-7
Safety
Servicing
• After repairing or adjusting the planter, remove all
tools and parts from the machine before operating.
• When working around discs, be careful to not get cut
on sharp edges.
• Lower the planter to the ground before attempting to
remove a wheel for tire repair.
• Tire changing can be very hazardous and must be
done by trained personnel using proper tools and
equipment.
• Do not re-inflate a tire that was seriously
under-inflated or run flat. Have it checked by qualified
personnel.
FIG. 6: Fluid Leak Detection
Correct hydraulic leaks immediately. All fittings must be
tight and all lines and hoses in good condition. Escaping
hydraulic fluid, under extremely high pressure, can
penetrate the skin and cause blood poisoning Use a piece
of wood or cardboard to detect fluid leaks. If injured by
escaping fluid, see a doctor immediately.
FIG. 6
D-5842a
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Safety
01-8 4283409M2
NOTES

4283409M2 01-9
Specifications
SPECIFICATIONS
STACK FOLD
General Information
Frame (Toolbar) Size ........................................................................................................................ 17.5 x 17.5 cm (7 x 7 in)
Tires .................................................................................................................................................................. 9.5 L-15, 6-ply
Drive Tire Pressure (max.) ....................................................................242 kPa (35 psi) or maximum indicated on sidewall
8792-36
Rows ..............................................................................................................................................................................12
Row Spacing................................................................................................................................................ 91 cm (36 in)
Frame Type .................................................................................................................................... Over-center stack fold
Overall Width (Less Markers)............................................................................................................. 10.84 m (35 ft 7 in)
Wing Width............................................................................................................................................ 2.69 m (8 ft 10 in)
Transport Width....................................................................................................................................... 6.2 m (20 ft 4 in)
Transport Height ............................................................................................................................................ 4.0 m (13 ft)
Drive Wheels....................................................................................................................................................................4
8792-38
Rows ..............................................................................................................................................................................12
Row Spacing................................................................................................................................................ 97 cm (38 in)
Frame Type .................................................................................................................................... Over-center stack fold
Overall Width (Less Markers).................................................................................................................. 12 m (39 ft 4 in)
Wing Width.............................................................................................................................................. 3.1 m (10 ft 2 in)
Transport Width............................................................................................................................................7.62 m (25 ft)
Transport Height ............................................................................................................................................... 4 m (13 ft)
Drive Wheels....................................................................................................................................................................4
8792-40
Rows ..............................................................................................................................................................................12
Row Spacing.............................................................................................................................................. 102 cm (40 in)
Frame Type .................................................................................................................................... Over-center stack fold
Overall Width (Less Markers).................................................................................................................. 12 m (39 ft 4 in)
Wing Width.............................................................................................................................................. 3.1 m (10 ft 2 in)
Transport Width............................................................................................................................................7.62 m (25 ft)
Transport Height ............................................................................................................................................... 4 m (13 ft)
Drive Wheels....................................................................................................................................................................4

Specifications
01-10 4283409M2
8776
Rows ..............................................................................................................................................................................16
Row Spacing................................................................................................................................................ 76 cm (30 in)
Frame Type .................................................................................................................................... Over-center stack fold
Overall Width (Less Markers)............................................................................................................... 12.2 m (40 ft 2 in)
Wing Width............................................................................................................................................ 3.18 m (10 ft 5 in)
Transport Width.......................................................................................................................................... 8 m (26 ft 2 in)
Transport Height ..................................................................................................................................... 4.1 m (13 ft 7 in)
Drive Wheels....................................................................................................................................................................4
Metering units are driven by sprocket, chain and shaft
from planter drive wheels.
All wheel, shaft and disc bearings are permanently sealed
and lubricated for life.
Air System
PTO Pump (Ground Drive)
Speeds.....................................................................................................................540 or 1000 rpm (separate models)
Capacity .........................................................................................................12.5 l/min (3.3 gal/min) @ rated PTO rpm
Pressure................................................................................................................4140 kPa (600 psi) @ rated PTO rpm
Relief Valve Pressure ....................................................................................................................15 514 kPa (2250 psi)
PTO Pump (Hydraulic Drive)
Speeds............................................................................................................................................................... 1000 rpm
Capacity .......................................................................................................54.5 l/min (14.4 gal/min) @ rated PTO rpm
Pressure.......................................................................................................... 20 684 kPa (3000 psi) @ rated PTO rpm
Relief Valve Pressure ....................................................................................................................20 684 kPa (3000 psi)
Motor and Fan
Fluid Requirement ............................................................................................................................ 7.6 l/min (2 gal/min)
Max. Fan Speed ................................................................................................................................................ 2600 rpm
Max. Air Pressure ....................................................................................................................................102 mm (4.0 in)
Fluid Filter - cartridge.............................................................. 10 micron with 20 to 25 psi (138 to 172 kPa) relief valve
Fluid Filter - spin on ...........................................................................................................................................10 micron
Pneumatic Down Pressure
Air Compressor
Motor Voltage12 Volts
Maximum Current Consumption .......................................................................................................................... 20 Amp
Motor TypePermanent Magnetic
Horse Power .................................................................................................................................................................1/4
Maximum Working Pressure................................................................................................................ 10.3 bar (150 psi)
Maximum Duty Cycle (@22.2 Celsius (72 degrees Fahrenheit) and 6.9 bar (100 psi)) ............................. 100 percent
Minutes On/Off (@22.2 Celsius (72 degrees Fahrenheit) and 6.9 bar (100 psi)) ........................................ Continuous
Maximum Restart Pressure .................................................................................................................13.8 bar (200 psi)
Maximum Ambient Temperature...........................................................................70 Celsius (158 degrees Fahrenheit)

4283409M2 01-11
Specifications
Minimum Ambient Temperature ............................................................................-40 Celsius (-40 degrees Fahrenheit)
Automatic Reset Thermal Protection .......................................................................................................................... Yes
Hydraulic System
Fluid Capacities: Ground Drive (approximate)
12-Row.............................................................................................................................................................. 1.9 l (2 qt)
Fluid Capacities: Hydraulic Drive (approximate)
16-Row......................................................................................................................................................... 28.8 l (7.6 qt)
Operating Pressure
Minimum.............................................................................................................................................. 3447 kPa (500 psi)
Maximum .......................................................................................................................................20 684 kPa (3000 psi)
Cylinders
Marker .................................................................................................................. One 2 x 18 inch double-acting marker
Fold.........................................................................................................................................2-7 x 24 inch double-acting
Tractor Remote Valve Requirements
Marker Circuit...................................................................................................................................................................1
Fold Circuit .......................................................................................................................................................................1
With tractor hydraulics for blower ................................................................................................................... 1 additional
Blower Motor
Fluid Requirement (Max).................................................................................................... 3.8 to 11.3 Lpm (1 to 3 gpm)
Operating Pressure (Min) .....................................................................................3447 kpa (500 psi) @ rated PTO rpm
Operating Pressure (Max).............................................................................. 17 237 kPa (2500 psi) @ rated PTO rpm
Transmissions
12-Row..................................................................................................................................................................... Three
16-Row..................................................................................................................................................................... Three
Type......................................................................................................................................... Chain w/ sliding sprockets
Sprocket Combinations .................................................................................................................................................32
Row Units
Seed Discs..................................................................... Corn, soybean, sunflower, sugar beet, cotton, sorghum, milo,
.........................................................................................maize, navy bean, large edible bean, snap bean, peanut
Seed Disc-to-Metering Unit Clearance .................................................................1.254 to 1.27 mm (0.010 to 0.050 in)
Metering Units.................................................................................................................................................... Individual
Seed Hopper Capacity ............................................................................................................................. 105.7 l (3.0 bu)
Chemical Capacity........................................................................................................................................ 32 kg (70 lb)
Openers .........................................................................................................................................................Double Disc
Gauge Wheels.................................................................................................................................. Walking Beam Type
Gauge Wheel Tire Size ........................................................................................................ 11.4 x 40.6 cm (4.5 x 16 in)
Single Closing Wheel Tire Size............................................................................................... 10.3 x 30.1 cm (4 x 12 in)
Single Closing Wheel Down Pressure....................................................................................4.5 to 50 kg (10 to 110 lb)
Dual Closing Wheel Tire Size ...................................................................................................30.8 cm (12 in) diameter
Dual Closing Wheel Down Pressure....................................................................................6.8 to 90.9 kg (50 to 200 lb)

Specifications
01-12 4283409M2
Shear Pins, Bolts
Row Unit Drive........................................................................................................................... 3/16 x 2-1/2 in cotter pin
Main Drive.....................................................................................................................................1/4 x 1 in bolt, Grade 2
Chemical Drive................................................................................................................................5/32 x 1-1/4 in roll pin
Marker .............................................................................................................................................. M8 x 80, Grade 10.8
Transport Lights
Number / Type ......................................................................................... Two amber flashers, two red tail / brake lights
Bulbs ........................................................................................................................................................................#1157
Approximate Shipping Weight
12-Row, 36 in ........................................................................................................................................ 4021 kg (8865 lb)
12-Row, 38 in, 40 in .............................................................................................................................. 4146 kg (9140 lb)
16-Row, 30 in ..................................................................................................................................... 4967 kg (10 950 lb)
Estimated Planter Field Weight
Seed weight ......................................................................................................................... Add 50 kg (110 lb) per row
Optional equipment ............................................................................................................. Add 91 kg (200 lb) per row
Herbicide................................................................................................................................. Add 32 kg (70 lb) per row
Monitor
SM400
Voltage ...........................................................................................................................................................12 VDC
Fuse .......................................................................................................................................... 7.5 amp, brown ATO
Monitoring Capability ...............................Row population, high/low population limits, areas (3), distance counter,
...............................................................................................seed spacing, seed count, acres/hour, ground speed
Electronic Seed Drive Controller
ISOBUS Planter Controller
Voltage .................................................................................................................... 12 VDC, w/ nonvolatile memory
Monitoring Capability ...............................Row population, high/low population limits, areas (3), distance counter,
...............................................................................................seed spacing, seed count, acres/hour, ground speed
Program Capability ..................................................................................................Seed Population, seed spacing

4283409M2 01-13
Specifications
Tractor Requirements
PTO speed............................................................................................................................................. 540 or 1000 rev/min
Minimum PTO power
8792-36................................................................................................................................................. 112 kW (150 hp)
8792-38................................................................................................................................................. 112 kW (150 hp)
8792-40................................................................................................................................................. 112 kW (150 hp)
8776-30................................................................................................................................................. 149 kW (200 hp)
Planter Dry Weight
8792-36............................................................................................................................................... 4475 kg (9865 lb)
8792-38............................................................................................................................................. 4599 kg (10140 lb)
8792-40............................................................................................................................................. 4599 kg (10140 lb)
8776-30............................................................................................................................................. 6237 kg (13750 lb)
Planter Total Weight
8792-36............................................................................................................................................. 6543 kg (14425 lb)
8792-38............................................................................................................................................. 6668 kg (14700 lb)
8792-40............................................................................................................................................. 6668 kg (14700 lb)
8776-30............................................................................................................................................. 8995 kg (19830 lb)
Tractor Minimum Weight
8792-36............................................................................................................................................... 4362 kg (9617 lb)
8792-38............................................................................................................................................... 4445 kg (9800 lb)
8792-40............................................................................................................................................... 4445 kg (9800 lb)
8776-30............................................................................................................................................. 5997 kg (13220 lb)
Maximum Speed
Maximum Roading Speed....................................................................................................................... 25 km/hr (15 mi/hr)
IMPORTANT: Do not exceed the maximum legal speeds
for this planter on public roads.

Specifications
01-14 4283409M2
NOTES

4283409M2 01-15
Index
INDEX
A
Agricultural Chemicals ......................................... 01-6
G
General Information ............................................. 01-1
I
Informational Messages ....................................... 01-4
O
Operating ............................................................. 01-5
S
Safety Alert Symbol ............................................. 01-3
Safety Messages ................................................. 01-3
Safety Signs ......................................................... 01-4
Serial Number ...................................................... 01-2
Serial Number Description ................................... 01-2
Servicing .............................................................. 01-7
Specifications ....................................................... 01-9
Air System ...................................................... 01-10
Electronic Seed Drive Controller ..................... 01-12
Hydraulic System ............................................ 01-11
Maximum Speed ............................................. 01-13
Monitors .......................................................... 01-12
Pneumatic Down Pressure ............................. 01-10
Tractor Requirements ..................................... 01-13
T
Transporting ......................................................... 01-6

01-16 4283409M2
Index
NOTES

4283409M2 02-i
Contents
Massey Ferguson®
8792 / 8776
Planter
SERVICE MANUAL
4283409M2
02 - Row Unit
Contents
GAUGE WHEELS
General Information ....................................................................................................................................... 02-1
Gauge Wheels ............................................................................................................................................... 02-1
Tire-to-Opener Clearance ....................................................................................................................... 02-1
Wheel Arm Endplay ................................................................................................................................. 02-1
Gauge Wheel Mounting ........................................................................................................................... 02-2
Gauge Wheel Disassembly ..................................................................................................................... 02-3
Gauge Wheel Assembly .......................................................................................................................... 02-3
Lower Row Unit Assembly ............................................................................................................................. 02-4
Openers ......................................................................................................................................................... 02-5
Scraper Bearing ...................................................................................................................................... 02-5
Rotary Scraper Tension .......................................................................................................................... 02-5
Flat Scraper ............................................................................................................................................. 02-6
Disc Blade Replacement and Adjustment ............................................................................................... 02-6
Seed Tubes ................................................................................................................................................... 02-7
Sensor Cleaning ...................................................................................................................................... 02-7
Tube Guard .................................................................................................................................................... 02-8
Depth Gauge ................................................................................................................................................. 02-9
Removal .................................................................................................................................................. 02-9
Installation ............................................................................................................................................... 02-9
Depth Adjustment ........................................................................................................................................ 02-10
Depth Calibration ................................................................................................................................... 02-10
Field Adjustment Check ........................................................................................................................ 02-11
Later Adjustments ................................................................................................................................. 02-11
CLOSING WHEELS
General Information ..................................................................................................................................... 02-13
Centering the Closing Wheels ............................................................................................................... 02-13
Single Closing Wheel ................................................................................................................................... 02-13
Down Pressure ...................................................................................................................................... 02-13
Removal ................................................................................................................................................ 02-14
Disassembly .......................................................................................................................................... 02-14
Assembly ............................................................................................................................................... 02-15
Installation ............................................................................................................................................. 02-15
Dual Wheels - Rubber and Cast .................................................................................................................. 02-16
Removal and Installation ....................................................................................................................... 02-17
Down Pressure ...................................................................................................................................... 02-18
Spacing ................................................................................................................................................. 02-19
Offset Wheels ........................................................................................................................................ 02-19
ROW UNIT LINKAGE