Demco 650 User manual

AG20016, Rev 19
11/20
GRAIN CART
650-750 BUSHEL

Page 2 AG20016
INTRODUCTION
WARNING: TO AVOID PERSONAL INJURY OR DEATH, OBSERVE FOLLOWING
INSTRUCTIONS:
Ensure that anybody present is clear before applying power to any machinery used in
conjunction with grain cart or when moving grain cart.
Never allow anyone in, near, or on grain cart during transporting or unloading of grain.
Moving grain is dangerous and can cause entrapment, resulting in severe injury or
death by suffocation.
Do not exceed 20 miles per hour when towing grain cart.
Thank you for purchasing a Demco Grain Cart. We feel you have made a wise choice and hope you are completely
satisfied with your new piece of equipment. Proper care and use will result in many years of service.
WARRANTY POLICY, OPERATOR MANUALS & REGISTRATION
Go online to www.demco-products.com to review Demco warranty policies, operator manuals and register your Demco
product.

AG20016 Page 3
INTRODUCTION
GENERAL INFORMATION
1. Unless otherwise specified, high-strength (grade5)
(3 radial-line head markings) hex head bolts are used
throughout assembly of this piece of equipment.
2. Whenever terms “LEFT” and “RIGHT” are used in this
manual it means from a position behind wagon box and
facing forward.
3. When placing a parts order, refer to this manual for
proper part numbers and place order by PART NO. and
DESCRIPTION.
4. Read assembly instructions carefully. Study
assembly procedures and all illustrations before you
begin assembly. Note which parts are used in each
step. This unit must be assembled in proper sequence
or complications will result.
Warranty Policy & Registration................................................................................................. 2
General Information, Table of Contents.................................................................................. 3
Safety, Signal Words.................................................................................................................. 4
Equipment Safety Guidelines, Lighting and Marking........................................................... 5
Safety Sign Care, Tire Safety..................................................................................................... 6
Before Operation ....................................................................................................................... 7
During Operation......................................................................................................................7-8
Following Operation ................................................................................................................. 8
Highway and Transport Operations ........................................................................................ 9
Performing Maintenance ......................................................................................................... 10
Safety Sign Locations............................................................................................................. 11-12
Bolt Torque................................................................................................................................. 13
Axle Assembly and Parts Breakdown..................................................................................... 14
Auger Assembly and Parts Breakdown.................................................................................. 15
Adjustable Discharge Chute Option Parts Breakdown ....................................................... 16
Grain Cart Assembly and Parts Breakdown........................................................................ 17-18
650 Bushel Extensions Assembly and Parts Breakdown..................................................... 19
750 Bushel Extensions Assembly and Parts Breakdown..................................................... 20
Hydraulics Assembly and Parts Breakdown .......................................................................... 21
Optional Hydraulic Block Schematic...................................................................................... 22
Lighting Assembly and Parts Breakdown .............................................................................. 23
Scale Option and Parts Breakdown........................................................................................ 24
PTO Drive Shaft Breakdown.................................................................................................... 25
Hydraulic Drive Assembly and Parts Breakdown.................................................................. 26
Window Assembly and Door Lift Assembly Breakdown..................................................... 27
Grease and Lube Instructions.................................................................................................. 28
Inner Door Maintenance, Gear Box Lube Instructions......................................................... 29
Grain Cart Checklist.................................................................................................................. 30
Tire Inflation............................................................................................................................... 31
TABLE OF CONTENTS

Page 4 AG20016
SAFETY
TAKE NOTE! THIS SAFETY ALERT SYMBOL FOUND THROUGHOUT THIS
MANUAL IS USED TO CALL YOUR ATTENTION TO INSTRUCTIONS INVOLVING YOUR
PERSONAL SAFETY AND SAFETY OF OTHERS. FAILURE TO FOLLOW THESE INSTRUCTIONS
CAN RESULT IN INJURY OR DEATH!
THIS SYMBOL MEANS
ATTENTION
BECOME ALERT
YOUR SAFETY IS INVOLVED!
DANGER:
Indicates an imminently hazardous situation that, if not
avoided, will result in death or serious injury. This signal
word is to be limited to most extreme situations typically
for machine components which, for functional purposes,
cannot be guarded.
WARNING:
Indicates a potentially hazardous situation that, if not
avoided,could result in death or serious injury, and includes
hazards that are exposed when guards are removed. 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 also
be used to alert against unsafe practices.
If you have questions not answered in this manual, require additional copies, or if your manual is damaged, please contact
your dealer or Demco, 4010 320th Street, Boyden, IA 51234
ph: [phone] or Toll Free: 1-800-543-3626 Fax: [phone]
http://www.demco-products.com
SIGNAL WORDS:
This manual uses of the following signal words--DANGER,
WARNING, and CAUTION-- with safety messages. The
appropriate signal word has been selected using the
following guidelines.

AG20016 Page 5
SAFETY
SAFETY...YOU CAN LIVE WITH IT
EQUIPMENT SAFETY GUIDELINES
Every year many accidents occur which could have been avoided by a few seconds of thought and a more
careful approach to handling equipment. You, the operator, can avoid many accidents by observing the
following precautions in this section. To avoid personal injury, study the following precautions and insist
those working with you, or you yourself, follow them.
In order to provide a better view, certain illustrations in your owners manual may show an assembly with a
safety shield removed. However, equipment should never be operated in this condition. Keep all shields
in place. If shield removal becomes necessary for repairs, replace shield prior to use.
Replace any caution, warning, danger or instruction safety decal that is not readable or is missing.
Do not attempt to operate this equipment under the influence of alcohol or drugs.
Review safety instructions with all users annually.
Operator should be a responsible adult. DO NOT ALLOW PERSONS TO OPERATE OR ASSEMBLE THIS
UNIT UNTIL THEY HAVE DEVELOPED A THOROUGH UNDERSTANDING OF SAFETY PRECAUTIONS
AND HOW IT WORKS.
To prevent injury or death, use a tractor equipped with a roll over protective system (ROPS). Do not paint
over, remove, or deface any safety signs or warning decals on your equipment. Observe all safety signs
and practice instructions on them.
Never exceed limits of a piece of machinery. If its ability to do a job, or to do so safely is in question DON’T
TRY IT.
LIGHTING AND MARKING
It is the responsibility of customer to know lighting and marking requirements of local highway authori-
ties and to install and maintain equipment to provide compliance with regulations. Add extra lights when
transporting at night or during periods of limited visibility.
Lighting kits are available from your dealer or from manufacturer.

Page 6 AG20016
SAFETY SIGN CARE
• Keepsafetysignscleanandlegibleatalltimes.
• Replacesafetysignsthataremissingorhavebecomeillegible.
• Replacementpartsthatdisplayedasafetysignshouldalsodisplaycurrentsign.
• Safetysignsareavailablefromyourdistributor,dealerpartsdepartment,orfactory.
How to install safety signs:
• Besurethatinstallationareaiscleananddry.
• Decideonexactpositionbeforeyouremovebackingpaper.
• Removesmallestportionofsplitbackingpaper.
• Aligndecaloverspeciedareaandcarefullypresssmallportionwithexposedstickybackinginplace.
• Slowlypeelbackremainingpaperandcarefullysmoothremainingportionofdecalintoplace.
• Smallairpocketscanbepiercedwithapinandsmoothedoutusingpieceofdecalbackingpaper.
TIRE SAFETY
• Failuretofollowproperprocedureswhenmountingatireonarimcanproduceanexplosionwhichmay
result in a serious injury or death.
• Donotattempttomountatireunlessyouhaveproperequipmentandexperiencetodojob.
• Inatingorservicingtirescanbedangerous.Wheneverpossible,trainedpersonnel shouldbecalledto
service and/or mount tires.
• Alwaysorderandinstalltiresandwheelswithappropriatetypeandloadcapacityto meetorexceed
anticipated weight to be placed on the equipment.
• NEVER exceed 40 psi tire inflation when using truck tires on gravity flow wagons.
• Referto“TIRE INFLATION CHART” in your owners manual for maximum tire pressure for a Demco
Grain Cart.
REMEMBER
Your best assurance against accidents is a careful and responsible operator. If there is any portion of this
manual or function you do not understand, contact your local authorized dealer or manufacturer.
SAFETY

AG20016 Page 7
SAFETY
BEFORE OPERATION:
• CarefullystudyandunderstandthismanualandtheOwner’sManual.
• Donotwearloose-ttingclothingwhichmaycatchinmovingparts.
• Alwayswearprotectiveclothingandsubstantialshoes.
• Itisrecommendedthatsuitableprotectivehearingandeyeprotectionbeworn.
• Operatormaycomeincontactwithcertainmaterialswhichmayrequirespecicsafetyequipmentrelative
to handling of such materials. (Examples: extremely dusty, molds, fungus, bulk fertilizers, etc.)
• Keepwheelandlugnutstightenedtospeciedtorque.
• Assurethatagriculturalimplementtiresareinatedevenly.
• Giveunitavisualinspectionforanyloosebolts,wornparts,orcrackedwelds,andmakenecessaryrepairs.
Follow maintenance safety instructions included in this manual.
• Besuretherearenotoolslyingonorinequipment
• Donotuseunituntilyouaresurethatareaisclear,especiallyaroundchildrenandanimals.
• Don’thurrylearningprocessortakeunitforgranted.Easeintoitandbecomefamiliarwithyournew
equipment.
• Practiceoperationofyourequipmentanditsattachments.Completelyfamiliarizeyourselfandother
operators with its operation before using.
• Makesurethatbrakesareevenlyadjusted(ifequippedwithbrakes)
• UseatractorequippedwithRollOverProtectionSystem(ROPS)andfastenyourseatbeltpriortostarting
the engine.
• ManufacturerdoesnotrecommendusageofatractorwiththeROPSremoved.
• Movetractorwheelstowidestrecommendedsettingstoincreasestability.
• Donotallowanyonetostandbetweentongueorhitchandtowingvehiclewhenbackinguptoequipment.
DURING OPERATION
• Bewareofbystanders,PARTICULARLY CHILDREN! Always look around to make sure that it is safe to start
engine of towing vehicle or move unit. This is particularly important with higher noise levels and quiet cabs,
as you may not hear people shouting.
• NO PASSENGERS ALLOWED- Do not carry passengers anywhere on or in tractor or equipment.
• Keephandsandclothingclearofmovingparts.
• Donotclean,lubricate,oradjustyourequipmentwhileitismoving.

Page 8 AG20016
• Whenhaltingoperation,evenperiodically,settractorortowingvehiclesbrakes,disengagePTO,shutoff 
engine, and remove ignition key.
• Beespeciallyobservantofoperatingareaandterrain.Watchforholes,rocks,orotherhiddenhazards. 
Always inspect area prior to operation.
- DO NOT operate near edge of drop-off or banks.
- DO NOT operate on steep slopes as overturn may result.
- Operate up and down (not across) intermediate slopes. Avoid sudden starts and stops.
• Pickthemostlevelpossibleroutewhentransportingacrosselds.Avoidedgesofditches,gullies,and 
steep hillsides.
• Beextracarefulwhenworkingoninclines.
• Maneuvertractorortowingvehicleatsafespeeds.
• Avoidoverheadwiresorotherobstacles.Contactwithoverheadlinescouldcauseseriousinjuryordeath.
• Avoidloosegravel,rocks,andholes;theycanbedangerousforequipmentoperationormovement.
• Allowforunitlengthwhenmakingturns.
• Donotwalkorworkunderraisedcomponentsorattachmentsunlesssecurelypositionedandblocked.
• Keepallbystanders,pets,andlivestockclearofworkarea.
• Operatetowingvehiclefromoperatorsseatonly.
• Neverstandalongsideofunitwithenginerunningorattempttostartengineand/oroperatemachinewhile
standing alongside of unit.
• Neverleaverunningequipmentunattended.
• Asaprecaution,alwaysrecheckhardwareonequipmentfollowingevery100hoursofoperation.Correct 
all problems. Follow maintenance safety procedures.
FOLLOWING OPERATION
• Followingoperation,orwhenunhitching,stoptractorortowingvehicle,setbrakes,shutoff
engine and remove ignition key.
• Storeunitinanareaawayfromhumanactivity.
• Donotparkequipmentwhereitwillbeexposedtolivestockforlongperiodsoftime.Damageand  
livestock injury could result.
• Donotpermitchildrentoplayonoraroundstoredunit.
• Makesureallparkedmachinesareonahard,levelsurfaceandengageallsafetydevices.
• Wheelchocksmaybeneededtopreventunitfromrolling.
SAFETY
HIGHWAY AND TRANSPORT OPERATIONS

AG20016 Page 9
SAFETY
HIGHWAY AND TRANSPORT OPERATIONS
• Adoptsafedrivingpractices:
- Keep brake pedals latched together at all times. NEVER USE INDEPENDENT
BRAKI NG WITH MACHINE IN TOW, LOSS OF CONTROL AND/OR UPSET OF
UNIT CAN RESULT.
- Alwaysdrive ata safe speedrelativetolocal conditions,ensurethatyour speed is low enoughfor
an emergency stop. Keep speed to a minimum.
- Reduce speed prior to turns to avoid risk of overturning.
- Alwayskeeptractoror towing vehicle in gearto provide engine brakingwhen going downhill. Do
not coast.
- Do not drink and drive!
• Complywithstateandlocallawsgoverninghighwaysafetyandmovementoffarmmachineryon 
public roads.
• Useapprovedaccessorylighting,agsandnecessarywarningdevicestoprotectoperatorsofother
vehicles on highway during transport. Various safety lights and devices are available from your dealer.
• Useofashingamberlightsisacceptableinmostlocalities.However,somelocalities  
prohihit their use. Local laws should be checked for all highway lighting and marking requirements.
• Whendrivingtractorandequipmentonroadunder20m.p.h.(40kph)atnightorduringday,use 
 ashingamberwarninglightsandaslowmovingvehicle(SMV)identicationemblem.
• Planyourroutetoavoidheavytrafc.
• Beasafeandcourteousdriver.Alwaysyieldtooncomingtrafcinallsituations,including
narrow bridges, intersections, etc.
• Beobservantofbridgeloadratings.Donotcrossbridgesratedlowerthangrossweightatwhichyou
are operating.
• Watchforobstructionsoverheadandsidetosidewhiletransporting.
• Alwaysoperateequipmentinapositiontoprovidemaximumvisibility.Makeallowancesforincreased
length and weight of equipment when making turns, stopping unit, etc.
• SAFETY CHAINS: If equipment is going to be transported on a public highway, always follow state and
local regulations regarding safety chains and auxiliary lighting. Be sure to check with local law
enforcement agencies for your own particular regulations. Only safety chains (not elastic or nylon/plastic
tow straps) should be used to retain connection between towing and towed machines in event of
separationofprimaryattachingsystem.Useahighstrength,appropriatelysizedhitchpinwithamechanical 
retainer and attach safety chains. Criss cross chains under tongue and secure to draw bar cage mounting
loops, or bumper frame.

Page 10 AG20016
SAFETY
• Good maintenance is your responsibility. Poor maintenance is an invitation to trouble.
• Makesurethereisplentyofventilation.Neveroperateengineoftowingvehicleinaclosedbuilding.
Exhaust fumes may cause asphyxiation.
• Beforeworkingonthismachine,stoptowingvehicle,setbrakes,shutoffengineandremove
ignition key.
• Alwaysusesafetysupportandblockwheels.Neveruseajacktosupportmachine.
• Alwaysusepropertoolsorequipmentforjobathand.
• Useextremecautionwhenmakingadjustments.
• Followtorquechartinownersmanualwhentighteningboltsandnuts.
• Neveruseyourhandstolocateahydraulicleakonattachments.Useasmallpieceofcardboardorwood.
Hydraulic fluid escaping under pressure can penetrate skin.
• Openingsinskinandminorcutsaresusceptibletoinfectionfromhydraulicuid.
Without immediate medical treatment, serious infection and reactions can occur.
• Whendisconnectinghydrauliclines,shutoffhydraulicsupplyandrelieveallhydraulicpressure.
• Replaceall shields and guards after servicing and before moving.
• Afterservicing,besurealltools,partsandserviceequipmentareremoved.
• Donotallowgreaseoroiltobuilduponanystepsorplatform.
• Whenreplacingbolts,refertoownersmanual.
• Refertobolttorquechartinownersmanualforheadidenticationmarking.
• Wherereplacementpartsarenecessaryforperiodicmaintenanceandservicing,
genuine factory replacement parts must be used to restore your equipment to original
 specications.Manufacturerwillnotclaimresponsibilityforuseofunapprovedparts  
or accessories and other damages as a result of their use.
• Ifequipmenthasbeenalteredinanywayfromoriginaldesign,manufacturerdoesnotacceptany 
liability for injury or warranty.
• Areextinguisherandrstaidkitshouldbekeptreadilyaccessiblewhileperformingmaintenanceon
this equipment
PERFORMING MAINTENANCE