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OperatOr and parts Manual
Grain Vac
Conveyair 6640
052012
FK376

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Do you have a question about the Farm King Grain Vac Conveyair 6640 and is the answer not in the manual?

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rucker meaker
March 7, 2025

discharge will not raise ,full of oil

1 comments:
Mr. Anderson
March 7, 2025

The discharge of the Buhler Farm King Grain Vac Conveyair 6640 may not raise even when full of oil due to several possible issues:

1. Hydraulic Pressure Problem – If the hydraulic system has trapped air or insufficient pressure, it may not operate correctly. Ensure all lines, fittings, and couplers are tight and in good condition.
2. Overfilled or Underfilled Reservoir – Overfilling can cause heating from oil churning, while underfilling can cause heating from lack of lubrication, both affecting performance. Ensure the hydraulic oil is at the correct level.
3. Blocked or Faulty Hydraulic Valve – A malfunctioning or clogged hydraulic valve may prevent proper fluid flow, hindering the discharge boom from raising.
4. Hydraulic Motor Issue – If the hydraulic motor driving the system is not functioning properly, it could prevent movement.
5. Tractor PTO Speed – If the tractor PTO operates too slowly, it may not generate enough hydraulic pressure to lift the boom.

Check these areas systematically to identify and resolve the issue.

This answer is automatically generated

Summary of Contents for Buhler Farm King Grain Vac Conveyair 6640

  • Page 1 OperatOr and parts Manual Grain Vac Conveyair 6640 052012 FK376...
  • Page 3: Table Of Contents

    Table of Contents - Grain Vac Table of Contents Introduction ..........................5 Safety ............................7 • Operating safety ......................8 • Safety Decal Locations ....................9 Transport ............................11 Attaching to Tractor ........................12 • Equipment Matching ....................12 • BPS & Receiver T ank Screens ..................13 • Oil Level ........................13 Operation ..........................14 • Boom Swivel .......................
  • Page 4 Table of Contents - Grain Vac Parts List & Diagrams ......................38 • Frame & Wheel Assembly ..................38 • Receiver T ank & Dust Collector .................. 40 • Airlock & Blower Assemblies ..................42 • Boom & Cyclone ......................44 • Belt Drive ........................46 • Cleanup & Full Bin Nozzles ..................48 • Steel Flex Hose & Couplers ..................50 • Cleanup Hose & Couplers ..................52 • PTO (La Magdalena - 1000 RPM) ................54 • Self Contained Hydraulic System ................
  • Page 5: Introduction

    Introduction - Grain Vac Introduction Congratulations, you have selected a Farm King Grain Vac which is designed and engineered to help you make farming Easier, Healthier and Safer. Our knowledgeable engineering and production staff have built both performance and durability into each Farm King Grain Vac. Our grain vacs have been sold to farmers in Canada, Europe, the USA, Australia and the Middle East. To get the maximum benefit from your Farm King Grain Vac please read the owner’s manual carefully. We recommend that you study this manual from beginning to end BEFORE operating your new Farm King Grain Vac. We have tried to keep it brief and to the point. It is important that you pay special attention to the safety cautions in this book and on your equipment. All implements with moving parts are potentially hazardous. There is no substitute for a cautious, safe-minded operator who recognizes the potential hazards and follows reasonable safety practices. The manufacturer has designed this implement to be used with all its safety equipment properly attached to minimize the chance of accidents.
  • Page 6 Safety - Grain Vac Read and understand the operation manual before oper- ating the Grain Vac. Always follow safety and operating WARNING instructions as outlined in this manual. Familiarize yourself with the terms shown on this page. Boom Clamp Discharge Cyclone Upper Boom Hinge Discharge Boom Receiver Tank Blower Protection System Receiver (BPS) Tank Intake Suction Boom Line Clamp Vacuum Relief Valve Control Panel Boom Swivel Blower Lock behind panel Belt Cover Airlock Hydraulic Dust Pressure Hose Canister Silencer Relief Valve Belt Cover...
  • Page 7: Safety

    Safety - Grain Vac Safety All implements with moving parts are potentially hazardous. There is no substitute for a cautious, safe-minded operator who recognizes the potential hazards and follows reasonable safety practices. The manufacturer has designed this implement to be used with all its safety equipment properly attached to minimize the chance of accidents. Before You Start Read the safety messages on the implement and shown in your manual. Observe the rules of safety and common sense! The safety alert symbol means… ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! This safety alert symbol identifies important safety warning messages. Carefully read each warning message that follows. Failure to understand and obey a safe- ty warning, or r ecognize a safety hazard, could result in an injury or death to you or others around you. The operator is ultimately responsible for the safety of himself, as well as others, in the operating area of the tractor and attached equipment. Understand Signal Words Note the use of the signal words DANGER, WARNING and CAUTION with the safety messages. The appropriate signal word for each has been selected using the following guidelines: 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 the 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 or require additional copies or the manual is damaged, please c ontact your dealer or the manufacturer directly. Importanat Safety information Working with unfamiliar equipment can lead to careless injuries. Read this manual, and the manual for your tractor before assembly or operating, to acquaint yourself with the machines. It is the owner’s r esponsibility, if this machine is used by any person other than yourself, is loaned or...
  • Page 8: Operating Safety

    Safety - Grain Vac Operating Safety ● Wear appropriate ear protection. ● N ever wear ill-fitting, baggy or frayed clothing when working around or on any of the drive system components. ● Always know where all overhead electrical wires are located and stay away from them. ● Do not allow riders. ● Install and secure all guards and shields before starting or operating. ● Keep hands, feet, hair and clothing away from moving parts. ● P lace all controls in neutral, stop tractor engine, set park brake, remove ignition key and wait for all moving parts to stop before servicing, adjusting, repairing or unplugging. ● Place all tractor and machine controls in neutral before starting. ● Never operate the Grain Vac and power unit inside a closed building. ● Clear area of bystanders, especially small children, before starting. ● Stay away from PTO shaft, intake nozzle and discharge when engaging PTO. ● Keep all hydraulic lines, fittings and couplers tight and free of leaks. ● Clean reflector, SMV and lights before transporting. ● Use proper lighting when transporting. ● U se a retainer or drawbar pin, secure PTO shaft and install a safety chain when attaching to tractor.
  • Page 9: Safety Decal Locations

    Safety - Grain Vac Safety Decal Locations Decals with “CAUTION” , “DANGER” , “WARNING” , and other information appear on your machine for your safety. Read the information carefully and replace the decals that are no longer legible. DANGER ROTATING DRIVELINE HAZARD To prevent serious injury or death from rotating driveline: • Keep all guards in place when operating. • Operate only at 1000 RPM. • Keep hands, feet, hair and clothing away from moving parts. SW105 Shield & Shaft ”A“ DANGER ELECTROCUTION HAZARD To prevent serious injury from electrocution: Stay away from overhead electrical wires when operating the discharge boom. Electrocution can occur without direct contact. 68 056 Control Panel ”B“...
  • Page 10 Safety - Grain Vac Safety Decal Locations, continued ROTATING PART HAZARD WARNING To prevent serious injury or death from rotating parts: 1. Close and secure guard before operating. 2. Shut-off engine and wait for moving parts to stop before opening to adjust, service, lubricate or unplug. 3.
  • Page 11: Transport

    Transport - Grain Vac Transport The Farm King Grain Vac is designed to be easily moved from location to location. When transporting, follow this procedure: Speed vs. weight ratio WARNING Road Speed Weight of fully equipped 1. Make sure you are in compliance with all or loaded implement(s) local regulations regarding transporting relative to weight of equipment on public roads and towing machine. highways. Up to 32 km/h 1 to 1, or less (20 mph) 2. Make sure the SMV(Slow Moving Up to 16 km/h 2 to 1, or less Vehicle) emblem and all the lights and (10 mph) reflectors that are required by the local highway and transport authorities are in Do not tow More than 2 to 1 place, are clean and can be seen clearly by all overtaking and oncoming traffic. 3. Do not allow anyone to ride on the grain Drawbar vac or tractor during transport. To provide sufficient clearance for turning and to allow telescoping of the shaft, leave 4.
  • Page 12: Attaching To Tractor

    Attaching to T ractor - Grain Vac Equipment Matching Drawbar To provide sufficient clearance for turning and to allow telescoping of the shaft, leave 410 mm between the end of the shaft and drawbar pinhole centre. Consult your tractor manual for the drawbar adjustment procedure. Tractor Horsepower (PTO RPM -1000) Minimum Horsepower: 110 PTO Shaft 1000 RPM - 21 Spline. 35 cm. Attach PTO shield safety chain to hitch. To prevent operating at the wrong RPM Do Not use a shaft adapter on the tractor shaft. Use extra care when using a tractor with a shiftable PTO speed. Hydraulic System The power unit must have dual remote hydraulic outlets to operate the airlock motor and the boom lift circuit. T he system must deliver at least 6 gpm (23 lpm) @ 1800 PSI. Attaching Tractor Drawbar 1. Clear area of bystanders. 2. Use the jack on the hitch to adjust the height of the hitch to the drawbar. Jack 3. Slowly back up to the machine and align the drawbar with the hitch. 4. Place all controls in neutral, stop tractor One inch pin and retainer engine, set the park brake, remove ignition key and wait for all moving parts to stop...
  • Page 13: Bps & Receiver T Ank Screens

    Attaching to T ractor - Grain Vac Attaching Tractor, continued 7. Open the belt cover and rotate the large pulley by hand to be sure the air pump turns freely. Machine is shown with guard open for illustrative purposes WARNING only! Do not operate the machine with guard open. Attach PTO Shaft 1. Clean splined yokes on the driveshaft. 2. Check that the driveshaft telescopes easily and that the shield turns freely on the shaft. Lubricate or clean before attaching if it does not move freely. 3. Pull back locking collar on the yoke and slide the yoke over the splined shaft of the large pul- ley. Rotate the pulley by hand as needed to align the splines of the yoke and the shaft. 4. Be sure the locking pin clicks into its locking groove on the shaft. 5. Attach the shield anchor chain to the frame. 6. Close and secure the belt cover Attach Hydraulic Lines 1. Clean hydraulic couplers and male tips. (Farm King factory supplied male tips are Standard 150 Tips). 2. Route the hydraulic hoses along the hitch and away from moving parts. Secure in position with clips or ties. (Be sure hoses are not pinched or crimped). BPS and Receiver Tank Screens Before moving grain or other materials ensure both BPS screen and main receiver tank screen are installed in machine properly at all times. (see: location on drawing, page 14) Oil Level...
  • Page 14: Operation

    Operation - Grain Vac Position Boom Over Centre Clamp Boom Swivel 1. S et the park brake and run the tractor at low idle engine RPM. Place all controls in neutral. Place chocks ahead and behind Cyclone rear tires to prevent machine movement when operating. Boom Main Receiver 2. U se the control lever in the cab to engage Tank Screen Over BPS Screen the remote hydraulic circuit. Suction Inside Centre Inside line 3. U nlatch boom transport clamp, flip up the Clamp boom lock and swing boom back until it clears the transport step. 4. U se hydraulic boom lever (Up to raise, down to lower). Carefully raise boom high Hydraulic enough to allow cyclone assembly (at end...
  • Page 15: Airlock Rotation

    Operation - Grain Vac Airlock Rotation Do not run the airlock in the reverse direction. Damage may WARNING occur to the hydraulic motor. For Best Performance 1. Working area should be reasonably level and dry. 2. The tractor should be positioned to have the driveline angles at a minimum. 3. The Farm King Grain Vac should be located so the intake line is as straight and as short as possible. 4. When using the Farm King Grain Vac to load trucks, make sure there is adequate room for the receiving vehicle to get under the discharge cyclone. Check the rotation of the airlock. Coupler should turn as indicated by arrow. If airlock rotates in wrong direction, stop and reverse direction of control lever on the tractor, or shut down the hydraulic system and reverse the order of the hoses plugged into the tractor couplers. Breaking In Your machine has been operated for a short time at the factory to assure good performance. It can however not be considered broken in. It normally takes 5 to 10 hours of operation for all parts to be polished by the grain stream and for the machine to come up to full capacity. We recommend the following checks during the break in period: A. After operating for 1/2 hour - 1. Check for overheated bearing. Lubricate or adjust as required*. 2. Check for oil leaks. Tighten or replace part and oil as required* High pressure fluids can penetrate the skin and cause WARNING infection and toxic reaction.
  • Page 16: Set Airlock Speed

    Operation - Grain Vac Breaking In, continued B. After operating for 2 to 10 hours - 1. Perform the same checks and inspections as done at 1/2 hour. 2. After the 10 hour inspection, go to normal service and maintenance procedures. Set Airlock Speed Material Airlock Speed (RPM) Barley 50 - 60 For maximum performance adjust speed most suitable for material moved. Canola 45 - 60 Corn 45 - 60 Material consistency varies widely in the Flax 35 - 55 field. Airlock speed is also affected by suction and discharge length. To obtain maximum Wheat...
  • Page 17: Short Distance Transfer

    Operation - Grain Vac Short Distance Transfer Insert bin nozzle. Connect hose from receiver intake to bin nozzle. Set the air slide on the full bin nozzle all the way open and push the nozzle into the Airslide (Full bin nozzle) material to be moved. WARNING Do not cover airslide with grain. The line of the grain can be horizontal, angled or vertical depending on conditions. Adjust the airslide on the full bin nozzle so that the material moves across the sight glass window of the receiver tank to approximately Sight half way (no more than 2/3) up the window. If Glass the machine starts to surge, slowly open slide till surging stops. Note: Should the material stop moving and completely cover the sight glass window in the receiver tank, the machine will quickly plug. Immediately open the air slide fully, on the full bin nozzle, to allow the machine to clear itself. Remove the nozzle from the grain and forward and reverse the airlock several times to empty the tank. Then ensure the airlock is turning counter clockwise and resume operation as normal. Otherwise follow the next 6 steps: IMPORTANT: If the machine still does not clear For PUSH BPS itself do the following: SYSTEM System a. Stop machine by slowly reducing tractor only, RPM to an idle, then disengage PTO.
  • Page 18: Long Distance Transfer

    Operation - Grain Vac Long Distance Transfer Do not use P.V.C. or other plastic tubing for long distance WARNING application. The build-up of static electricity could lead to an explosion. Auxiliary airslide. Located on the airline between the receiver tank and the air pump. If discharge length is more than 40 ft. (12 m) or if blower gets too hot to the touch, open the airslide approximately 1/4" - 1/2" (6 - 12 mm) for every 100 ft. (30 m) discharge. Open further if blower still gets hot. Auxiliary Airslide Opening the airslide too far will affect capacity as adversely as not opening it at all. Feed grain below opening Top Loading (push only) to second cyclone For top loading, remove top cover of large cyclone. T o avoid feedback be sure grain enters below opening to BPS (smaller) cyclone. Long Distance Suction For sucking grain more than thirty feet, use straight piping where possible! Remember: T he straighter the suction line the greater the capacity of the grain vac. Clean Up When the machine needs not to be at full capacity, e.g. when cleaning bins, the tractor can be throttled down.
  • Page 19: Filing Bins & T Emporary Storage

    Operation - Grain Vac Seed Drill Clean Out When using the seed drill clean out kit, operate the tractor at idle only to reduce suction air flow. The receiver tank can be used as a holding tank by stopping the airlock until the seed can be discharged into a truck or storage. Cleanup of Spills and Ground Stored Grain Multiple Bins (Parallel) Extreme caution should be exercised when cleaning spills or grain stored on dirt. Sand and dirt may cause excessive wear to blower, and life expectancy of the unit can be reduced significantly. Filling Bins and Temporary Storage Rear discharge option required. When discharging into bins, remove the airlock discharge elbow and couple the machine to stationary or movable piping. For best performance, review recommended installation schematics. Use OEM parts Multiple Bins (Series) to insure good sealing and maximum performance. Contact your dealer for more information. Bin Cyclone Silos over 100 feet tall can be filled with your Farm King Grain Vac! 30º Elbow Compression Clamp...
  • Page 20: Accessories

    Accessories - Grain Vac Accessories 1. Horizontal Pipe Section. ◊ S teel or aluminum. Matched to Farm King Grain Vac. 2. V ertical Pipe Section. Specs as above. Sections may be welded or coupled together with 3-bolt clamp. 3. B in Top Cyclone. Cyclones come equipped with a rain cap and can also double as aeration vents. Cam Lock Couplers F or temporary installations, use the light- weight poly cyclone and attach with quick couplers. 4. 9 0 degree long radius elbow. Weld in place or secure with 3-bolt clamp. 5. 6" Female quick couplers. 6. D elivery from the grain vac to bin. Use a combination of short stainless lined steel flex and long radius 90 degree elbow. 7.
  • Page 21: Lubrication

    Lubrication - Grain Vac Lubrication Fluids and lubricants Grease Use any SAE multi -purpose high temperature grease with extreme pressure (EP) performances and containing at least 1.5% molybdenum disulfide or SAE Multi-Purpose Lithium Base Grease. Use cold temperature grease during the winter. Only use Blower Oil HD Synthetic Gear & Bearing Oil. Do not blend with other oil. Available through your nearest Farm King Dealer. ● Part # GV14220 ◊ Capacity drive end 850 ml/28.7 fl. oz US ◊ Capacity gear end 1000 ml/33.8 fl oz US ● Hydraulic Oil Reservoirs: Self Contained Hyd. ◊ A W32 Hydraulic oil equal to or exceeding ◊ SAE “SF” specifications. ◊ Capacity - (31 qt. US) Cleaning agent ◊ WD40 or equivalent. 1. P lace all controls in neutral, stop tractor engine, set park brake, remove ignition key and wait for all moving parts to stop before servicing. 2. B efore applying pressure to a hydraulic system, make CAUTION sure all lines, fittings and couplers are tight and in good condition.
  • Page 22 Lubrication - Grain Vac Greasing 1. U se only a manual grease gun for all greasing. Air powered grease guns may damage the seal on bearings, leading to early bearing failure. IMPORTANT Do not over grease, it can damage bearing seals. 2. W ipe grease fitting with a clean cloth before greasing, to avoid injecting dirt and grit. 3. R eplace and repair broken fittings immediately. 8 Hours or Daily PTO Shaft (9 Locations) Input Pulley Shaft, front and rear Machine is shown with guard open for illustrative purposes CAUTION only. Do not operate machine with guard open.
  • Page 23 Lubrication - Grain Vac 8 Hours or Daily 100 Hours or 6 Months Check air pump oil levels in reservoirs, front Change the oil in air pump and rear (2 locations). Add as required reservoirs (front and rear). NOTE NOTE Change every 30 hours if operating in Check when the oil is cold and the very dusty conditions machine is level. 50 Hours 200 Hours or Annually Repack wheel bearings (2 locations) Clean oil reservoir breather caps (2 locations) Daily...
  • Page 24: Service Record

    Lubrication and Maintenance Service Record - Grain Vac Service Record See Lubrication and Maintenance sections for details of service. Copy this page to continue record. ACTION: CHECK C CHANGE CL CLEAN L LUBRICATE R REPACK HOURS SERVICED MAINTENANCE 8 Hours or Daily L PTO Shaft (7) L Input Pulley Shaft Front & Rr. (2) V Belt Tension Air Pump Oil Level in Reservoir + CL S ystem Filter L B oom Grease Nipples...
  • Page 25: Maintenance

    Maintenance - Grain Vac Maintenance V-BELT TENSION 1. P lace PTO and hydraulic controls in neu- tral and shut-off engine. Disconnect the PTO shaft from the tractor. 5005 - force = 8 to 11 pounds 2. Unlatch belt shield cover and open cover. 5006 - force = 8 to 11 pounds 6006 - force = 11 to 15 pounds Force per belt. 1/2 inch deflection Check belt tension after initial one (1) 3. L oosen jam nut on adjuster bolts and to two (2) hours of operation and daily loosen the bearing mounting bolts. thereafter. 4. U se the adjusting bolts to move the pulley assembly to apply the proper tension to V Belt tension testers are available at the belts and also to align the pulleys with most belt service centres. each other. * DO NOT MIX OLD AND NEW BELTS! To extend the life of your bearings and shafts we recommend that you replace all 5 belts when one or more are frayed or...
  • Page 26: Airlock Tips

    Maintenance - Grain Vac Maintenance (continued) Airlock Tips Check Airlock Tips clearance when there is a noticeable drop in capacity of the grain vac. If clearance exceeds 0.015" (0.38mm) adjust as shown below. A. Checking clearance: 1. Disengage PTO and hydraulic power and shut off engine. Wait for all moving parts to stop. 2. Relieve the pressure on the hydraulic lines and disconnect from tractor. 3. Remove hydraulic lines from the airlock drive motor to allow rotation of the airlock. High pressure fluids can penetrate the skin and cause CAUTION infection and toxic reaction. 4. O pen the inspection door on the receiver tank. Use a feeler gauge to check the clearance between the tips and the shell. B. Airlock Tip Adjustment 1. Remove the connector on the air line between the BPS and the receiver tank. 2. Attach an overhead hoist to the receiver tank. 3. R emove the eight bolts securing the receiver tank to the airlock mount plate. Remove the receiver tank from the frame. 4. Position tip next to top of shell. 5. Loosen slightly the 5 bolts attaching the tip to the blade of the airlock. 6.
  • Page 27: Reservoir Breather

    Maintenance - Grain Vac Maintenance (continued) 8. R otate the rotor clockwise to ensure that there is no contact between the tips, end plates and the shell. Adjust if there is contact. 9. M ark the tip with a felt pen as done and proceed with remaining tips till all have been adjusted. 10. R eplace receiver tank and check that all connections are airtight..................Blower Serial Number Reservoir Breather (Clean every 50 hours) Clean breathers allow the pressure in the oil reservoir to equalize with the outside as the temperature changes. 1. R emove breather from the top of the reservoirs. 2. Soak/Wash in a good grade of solvent. 3. Dry with an air hose and re-install. Clamp # GV26042 Installation Instructions Remove burrs, dirt, grease from pipe ends. 10 O’Clock 2 O’Clock 1. M easure and mark both ends of the pipe at a distance that is half the length of the coupling. 2.
  • Page 28: Air Pump Reservoir

    Maintenance - Grain Vac Maintenance (continued) Air Pump Reservoir (Change oil every 100 hours, more often if conditions are very dusty). 1. Place small pan under the drain plug and remove plug. Drain for 10 minutes. 2. Re-install and tighten the drain plug. Breather hole Sight glass 3. R emove breather and add oil through the breather hole. Fill to center of the sight glass and re-install breather. 4. Repeat on other reservoir. ● Overfilling causes heating from the oil churning CAUTION ● Underfilling causes heating from lack of lubrication BPS (Blower Protection System) The air which is sucked from the receiver tank and drawn toward the air-pump contains dust which is harmful to the pump. This dust is trapped by the BPS system and collected in the dust canister. The amount of dust collected depends on the amount of dust and fines in the grain being moved.
  • Page 29: Shear Pin

    Maintenance - Grain Vac BPS (continued) b. E mpty canister and also allow any grain Remove BPS lid and take out Screen which may have accumulated in BPS to run out. Refer to unplugging instructions under OPERATION on page 17. Shear Pin A shear pin is provided in the PTO shaft to protect the drive system during an overload. Changing the Shear Pin 1. P lace all controls in neutral, stop engine, set park brake, remove ignition key and wait for all moving parts to stop before dismounting. 2. D isconnect the PTO shaft from the tractor and lay to the side to provide maximum clearance for the shear bolt. 3. C arefully remove remaining shear bolt using a hammer and punch if necessary.
  • Page 30: Hydraulic Safety

    Maintenance - Grain Vac Hydraulic Safety 1. Make sure that all components in the hydraulic system are kept in good condition. 2. Replace any worn, cut, abraded, flattened or crimped hoses and metal lines. 3. B efore applying pressure to the system, make sure all components are tight and that lines, hoses and couplings are not damaged. 4. W ear proper hand and eye protection when searching for a high pressure hydraulic leak. Use a piece of wood or cardboard as a backstop instead of hands to isolate and identify leak. 5. I f injured by a concentrated high pressure stream of hydraulic fluid, seek attention immedi- ately. Serious infection or toxic reaction can develop from hydraulic fluid piercing the skin surface. Do not use tape, clamps or cement to repair hydraulic lines. The hydraulic system operates under high pressure, CAUTION creating a hazardous unsafe condition when such repairs fail suddenly. High pressure fluids can penetrate the skin and cause WARNING infection and toxic reaction.
  • Page 31: Bolt T Orque

    Maintenance - Grain Vac Bolt Torque Check tightness of bolts periodically, using bolt torque chart as a guide. Always replace hardware with the same strength bolt. English Torque Specifications Bolt dia. Bolt Torque* SAE-2 SAE-5 SAE-8 SAE 2 SAE 5 SAE 8 “A” N.m (lb-ft) N.m (lb-ft) N.m (lb-ft) 1/4" 8 (6) 12 (9) 17 (12) 5/16" 13 (10) 25 (19) 36 (27) 3/8" 27 (20) 45 (33) 63 (45) 7/16" 41 (30) 72 (53) 100 (75) 1/2" 61 (45) 110 (80) 155 (115) 9/16"...
  • Page 32: Hydraulic Fitting Torque

    Maintenance - Grain Vac Hydraulic Fitting Torque Tighten Flare Tube Fittings* 1. Check flare and flare seat for defects that might cause leakage. 2. Align tube with fitting before tightening. 3. Lubricate connection and hand tighten swivel nut. 4. T o prevent twisting the tube(s), use two wrenches. Place one wrench on the connector body and with the second tighten the swivel nut to the torque shown. Nut size Recommended turns to Tube size Torque across tighten (after O.D. value* flats finger tightening) Flats Turns (lb-ft) 3/16 7/16 8 (6) 9/16 12 (9) 5/16 16 (12) 11/16 24 (18) 46 (34)
  • Page 33: Hydraulic Hose

    Maintenance - Grain Vac Hydraulic Hose Boom Cylinder Boom Hydraulic Valve Control Panel Hydraulic Motor To Tractor From T ractor...
  • Page 34 Maintenance - Grain Vac Hydraulic Hose Boom Boom Hydraulic Valve Cylinder Hydraulic Oil T ank Control Filter Panel Hydraulic Pump Hydraulic Motor...
  • Page 35: Troubleshooting

    Troubleshooting - Grain Vac Troubleshooting Discharge Boom The heart and lungs of the Grain Vac are the airlock and the blower (air pump). Both components must be operating at their Vacuum (air) Intake recommended speed to obtain maximum Suction efficiency from the machine. The blower is driven by a belt and pulley system from the PTO on a tractor. The airlock is driven by a hydraulic motor powered by the hydraulic system on the tractor or by a self contained hydraulic system. Airpump If you encounter a problem that is difficult Blower to solve, even after having read through this trouble shooting section, please call your local dealer or the factory. Before you call, please have this Operators Manual and the serial numbers from your Grain Vac ready. In North America call (204) 822-4467 Silencer Dust Discharge Airlock Canister Pressure PROBLEM CAUSE SOLUTION Tractor PTO runs slow. Speed up tractor PTO to rated RPM for the model. 540 Instead of Change tractor or PTO speed shaft. 1000 RPM. Belts are slipping.
  • Page 36 Troubleshooting - Grain Vac Airlock tip clearance Adjust airlock tips. (See PAGE 26) high. Low capacity Airlock end plate If rotor to end plate clearance is more than 0.015", clearance consult the dealer or factory. Too much air intake. Adjust air intake nozzle. PTO running too fast. Throttle down tractor. Excessive grain Damaged tubing or Repair or replace. damage. flexline. Insufficient grain Reposition nozzle. supply. Insufficient air at intake. Open slide until grain flow becomes even. Adjust airlock speed until grain is at Airlock turning too fast. level of the inspection door. Replace steel flex or poly hose with Improper piping. rigid tubing wherever possible. Suction line too small. Use proper line size. Pulsation PTO running too slow. Increase PTO RPM. Belts are slipping. Tighten belts. Excessive airlock Adjust airlock tips. tip clearance. Airlock turning Adjust airlock speed until grain is at the proper too slow.
  • Page 37: Storage

    Storage - Grain Vac Storage Prior to storage we recommend that you thoroughly inspect your Grain Vac. Inject Cleaning 1. Replace any worn or damaged Agent components. Here 2. W ash and clean the machine. After cleaning, run machine at low idle for 2-3 minutes to dry the internal components. 3. a - While machine is running at an idle, open the cleaning port and inject a clean- ing agent such as WD40 for 45 - 60 sec- onds. This will coat the inside of the air pump to help prevent rusting. b - During storage or not in use for longer periods of time, perform the following procedure. Monthly, rotate air pump by hand to ensure turning free. (Close belt cover and fasten hood fastener latch.) Now rotate air pump at an idle, open airslide above air pump and inject a cleaning agent such as WD40 for 45-60 seconds. This coats the inside of the air pump to help prevent rust. 4. L ubricate all grease points. Make sure all grease cavities have been filled with grease to remove any water residue.
  • Page 38: Parts List & Diagrams

    Parts list & Diagrams - Grain Vac Description: Frame & Wheel Assembly...
  • Page 39 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV11600 Main frame GV30500 Hitch assembly GV30023 Snap ring GV30001 Jack GV60014 Amber reflector GV20024 Wheel seal GV20025 Bearing cone inner GV20026 Bearing cup inner GV30026 Wheel hub GV20027 Bearing cone outer GV20028 Bearing cup outer GV56046 Flat washer 3/4" GV60012 Cotter key GV30027 Castle nut GV30029 Dust cap GV30512 Tire/rim assembly, ST205 x 15 GV11620 Boom support GV60015 Red reflector...
  • Page 40: Receiver T Ank & Dust Collector

    Parts list & Diagrams - Grain Vac Description: Receiver Tank & Dust Collector...
  • Page 41 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV19504 Dust cyclone top plate GV19514 Screen, Blower protection system GV19500 Dust cyclone GV15525 Ring, pail seal GV19512 Dust cyclone pail GV26011 5" Seal clamp GV15640 Top Loading Receiver tank without coupler GV15632 Receiver tank top plate GV64510 Pail gasket, 825 - 045 - 4' required GV26052 Female coupler GV64001 Foam gasket -1/4 in x 1 in - 3' required GV15520 Window receiver GV64504 Foam gasket - 6' required GV10627 Airlock - see page 39 GV45505 Airline blower inlet GV26119 Vacuum relief valve GV14400 Blower complete with Oil filter - see page 39 GV45630 2 Piece airline blower output - see page 39...
  • Page 42: Airlock & Blower Assemblies

    Parts list & Diagrams - Grain Vac Description: Airlock & Blower Assemblies...
  • Page 43 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV10627 Airlock assembly, complete with motor GV10630 Wiper GV10631 Retainer Wiper Bolt, 1/4" x 1-1/2" complete with flat/L washer and nut GV10632 Flex tip wiper Bolt, 1/4" x 1-1/2" complete with flat/L washer and nut GV20011 Chain coupler cover (to mid 1997) GV20007 Chain coupler sprocket (to mid 1997) GV20010 Chain - chain coupler (to mid 1997) GV10021 Chain coupler sprocket - splined (to mid 1997) GV10513 Coupler weldment (mid 1997 models and up) GV20006 Woodruff key GV22228 Hydraulic motor - White GV10017 Bracket for mounting airlock motor GV10637 Airlock, less motor GV14400 Blower complete with breather vents GV45603 Flange airlock inlet GV26044 reducer 6" to 5"...
  • Page 44: Boom & Cyclone

    Parts list & Diagrams - Grain Vac Description: Boom & Cyclone Page 27 installation instruction...
  • Page 45 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV29682 Boom Mount Assembly GV29690 Bottom Boom Standard GV29691 Bottom Boom for High Boom GV43688 Discharge Swivel GV29620 Upper Boom GV29630 Boom Extension GV31046 Poly Cyclone Shell GV31039 Cyclone Thimble Assembly GV45611 Elbow Airlock Outlet GV45603 Airlock Outlet Flange GV29507 Threaded Rod Boom Clamp GV56051 1/2" Coupler Nut GV56003 1/2" Jam Nut GV64033 Boom Gasket GV27032 Boom Handle 32" GV29508 Boom Hingle Pin GV29535 Boom Extension Hinge Pin GV29643 Boom Bearing Washer...
  • Page 46: Belt Drive

    Parts list & Diagrams - Grain Vac Description: Belt Drive...
  • Page 47 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV11520 Belt Cover GV18504 Bushing, 1-3/8 complete with bolts GV18050 Sheave GV18502 Spline shaft, 1-3/8, 6 spline GV20502 Key, 5/16 x 2 Flat washer and nylon nut, 1/2 inch GV18505 V-Belt GV20501 Pillow block bearing, 1-3/8 GV11503 Bolt weldment - bearing GV56026 Tap bolt, 1/2 x 3-3/4 GV56003 Jam Nut, 1/2" GV18010 Bushing, 1 7/16 complete with bolts GV20018 Key, 3/8 x 2 GV18052 Sheave SELF CONTAINED HYDRAULICS - OPTIONAL GV18510 Sheave, 6.4 QT GV18511 Bushing, 9/16 QT complete with bolts Bushing, 5/8 QT complete with bolts Serial GV18515 2659 & up (Key 3/16" x 3/4" long) GV18513...
  • Page 48: Cleanup & Full Bin Nozzles

    Parts list & Diagrams - Grain Vac Description: Cleanup & Full Bin Nozzles...
  • Page 49 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV43030 Cleanup assembly complete GV60021 Shoulder strap GV60008 Handle grip Nylon nut 3/8" GV26006 Male coupler Carriage bolt, 1/4" x 3/4" complete with flat washer GV43525 Rotary elbow weldment GV26011 Seal clamp Wing nut and flat washer, 3/8" GV43004 Bottom slide assembly GV43003 Top slide GV60009 Rigid Caster Carriage bolt, 1/4" x 3/4". complete with washer and nut GV43060 Spacer pipe intake flare Machine bolt, 1/4" x 3", flat lock washer and nut GV43129 Bored intake flare GV26063 Quick release T-bolt clamp GV43031 Aluminum tube Intake Flare assembly, 16 to 20 GV43082 (T-bolt clamp not included) GV43610 Full bin nozzle assembly...
  • Page 50: Steel Flex Hose & Couplers

    Parts list & Diagrams - Grain Vac Description: Steel Flex Hose & Couplers...
  • Page 51 Parts list & Diagrams - Grain Vac Item No. Part # Description Quantity GV43047 Steel Flex Hose Assembly - includes 1-9 GV26051 Male Coupler GV56030 Lock Nut, 1/4" NC x 3/4" GV56027 Carriage Bolt, 1/4" NC x 3/4" GV43048 Steel Flex Hose, 10 ft. GV43050 Tubing GV26073 Steel Flex Poly Lock, 10 ft. GV26047 Hose End Reducer GV26086 Cam Lever GV26085 Finger Ring GV26082 Cam Lever Pin GV26052 Fem Coupler Assembly - includes 5-7 GV64029 Coupler Gasket When ordering parts specify: model, size, serial number and ordering number...
  • Page 52: Cleanup Hose & Couplers

    Parts list & Diagrams - Grain Vac Description: Cleanup Hose & Couplers...
  • Page 53 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV43034 Complete Hose Assembly - 4" x 14', 4" female x 5" male GV26006 Male Coupler, 5" GV56027 Carriage Bolt, 1/4" NC x 3/4", Lock Nut & Washer GV26028 Reducer, 5" - 4" GV26112 Poly Hose, 4" x 14' 14 feet GV43035 Tube GV26005 Female Coupler, 4" - includes 7 - 9 GV43056 Complete Hose Assembly - 5" x 14', 5" female x 6" male GV26051 Male Coupler, 6" GV56027 Carriage Bolt, 1/4" NC x 3/4", Lock Nut & Washer GV26044 Reducer, 6" - 5" GV26113 Poly Hose, 5" x 14' 14 feet GV43029 Tube GV26007 Female Coupler, 5" - includes 7 - 9 GV43019 Complete Hose Assembly - 6" x 14', 6" female x 6" male GV26051 Male Coupler, 6"...
  • Page 54: Pto (La Magdalena - 1000 Rpm)

    Parts list & Diagrams - Grain Vac Description: PTO (La Magdalena - 1000 RPM)
  • Page 55 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV16102 Drive shaft complete for 5" and 6" units GV16201 End yoke, 1 3/8" - 21 spline GV16202 Pin Kit GV16217 Pin Kit 2008 Model Vacs and later GV16203 Cross and bearing kit GV16110 Grease nipple GV16204 Yoke, Inner profile GV16112 Spring pin GV16205 Inner profile GV16208 Outer shield tube GV16209 Shield bearing GV16207 Shield Complete - Inner & Outer GV16210 Inner shield tube GV16211 Safety Chain GV16212 Outer profile GV16213 Yoke, outer profile GV16214 Shear bolt clutch yoke GV16206 Shear bolt, 10 mm x 65 mm, 8.8 DIN...
  • Page 56: Self Contained Hydraulic System

    Parts list & Diagrams - Grain Vac Description: Self Contained Hydraulic System 14 16 26 22...
  • Page 57 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV22066 Filter Breather GV22550 Tank - for self-contained hydraulics GV22068 Filter GV22502 Hydraulic Cylinder GV22700 Valve Bank GV22510 Mount for Hydraulic Valve GV22540 Hydraulic Pump GV22228 Hydraulic Motor GV22664 Mount for Hydraulic Pump GV22702 Hose - Motor to Valve GV22725 Hose - SCH Suction GV22705 Hose - SCH Return GV22706 Hose - SCH Pump to Valve GV22707 Hose - Boom (138") (for Standard Boom) GV22708 Hose - Boom (148") (for Standard Boom) GV22709 Hose - Boom (154") (for High Reach Boom) GV22710 Hose - Boom (164") (for High Reach Boom) GV22714 Fitting 10MB-8MJ...
  • Page 58: Standard Hydraulic System

    Parts list & Diagrams - Grain Vac Description: Standard Hydraulic System...
  • Page 59 Parts list & Diagrams - Grain Vac Item No. Part No. Description Quantity GV22502 Hydraulic Cylinder GV22700 Valve Bank GV22510 Mount for Hydraulic Valve GV22228 Hydraulic Motor GV22702 Hose - Motor to Valve GV22707 Hose - Boom (138") (for Standard Boom) GV22708 Hose - Boom (148") (for Standard Boom) GV22709 Hose - Boom (154") (for High Reach Boom) GV22710 Hose - Boom (164") (for High Reach Boom) GV22714 Fitting - 10MB-8MJ GV22715 Fitting - 10MB-6MJ GV22716 Fitting - 10MJ-6MP90 GV22703 Hose - Tractor (Inlet/Return) When ordering parts specify: model, size, serial number and ordering number...
  • Page 60: Warranty Policy

    PARTICULAR PURPOSE. This warranty is expressly in lieu of all other warranties expressed or implied. Buhler will in no event, be liable for any incidental or consequential damages, nor for any sum in excess of the price received for the goods for which liability is claimed.
  • Page 62 301 Mountain Street South Morden, Manitoba Canada R6M 1X7 Ph.: 204.822.4467 | Fax: 204.822.6348 Toll Free: 888.524.1004 E-mail: info@buhler.com www.farm-king.com Equipment shown is subject to change without notice. ©2012 Buhler T rading Inc. Printed in Canada. T SX:BUI a division of Buhler Industries Inc.

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