Summary of Contents for LOFTNESS GrainLogix GBU 12
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Grain Bag Unloader Owner’s Manual and Parts Book (Originating w/Serial Number 70-159) Model Number: Serial Number: Date of Purchase: N29799 Rev. F 09.26.18...
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All Loftness products have a one (1) year limited warranty. The XLB10 Grain Bag Loader has a two (2) year limited warranty. If any Loftness product is used as rental equipment, or in a commercial application, the limited warranty period is for only 30 days from the delivery date to the original customers.
NOTE: The machine’s serial number is also stamped in products may result in changes to your equipment that this area (1). may not be re ected in this publication . Loftness reserves the right to make product improvements to the machine Manual Storage at any time .
Fulfill all warranty obligations so as not to void the warranties . The warranty policy included in this manual IMPORTANT: Highlights information that must be outlines the warranty policy of Loftness . heeded . NOTE: A reminder of other related information that needs to be considered .
Safety Instructions Safety Rules • Operators are responsible to know the location and function of all guards and shields including but not limited to PTO drivelines, gearboxes, chain drives, These are general safety considerations. Additional augers and are responsible to make certain that all precautions may be necessary to operate your guards are in place when operating the machine .
Safety Instructions Maintenance Safety PTO Safety • Do not allow inexperienced persons unfamiliar with • Keep all guards and shields in place when operating the machine, or unfamiliar with safe operating and the PTO . Replace any damaged or missing guards maintenance procedures, to operate or maintain the and shields before operating the PTO .
Safety Instructions Safety Decal Locations Check and replace any worn, torn, hard to read or missing safety decals on your machine . Part No . 203264 Part No . N23505 Part No . N22763 WARNING SKIN PUNCTURE HAZARD. HYDRAULIC LINES. Protect hands and body from high pressure fluids.
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Safety Instructions Safety Decal Locations (Cont’d) WARNING Rotating parts hazard. Can cause serious injuries or death. Do not operate machine without shields attached. PN 4189 Part No. 4189 Part No. N22734 Part No. N22734 Part No. N23507 Grain Bag Unloader OM...
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Safety Instructions Safety Decal Locations (Cont’d) Part No. N22729 Part No. N23507 Part No. N22764 Grain Bag Unloader OM...
Safety Instructions Machine Decals and Signs Part No. N26972 (Large) NOTE: All safety related decals are also shown in the Safety Instructions Section along with their location on the machine. See “Safety Decal Locations” starting on page 6. Part No. N26973 (Medium) Check and replace any worn, torn, hard to read or missing decals on your machine .
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Safety Instructions Machine Decals and Signs (Cont’d) Part No . N29769 Part No. N22759 Part No. N22716 Part No. N13721 Part No. N22717 Part No. N29759 Grain Bag Unloader OM...
Set-up Instructions Initial Set-up Installing The Hitch The hitch and PTO driveline are shipped separately from the unloader . Align the upper hitch mount with the upper bracket on the mounting frame . Install the pin (1) and cotter pin (2) . Lower the jack stand and remove the chains .
Set-up Instructions Installing Grain Bag Unloader to the Tractor Retract sleeve (1), slide the PTO driveline onto the tractor PTO shaft until the sleeve slides forward and locks driveline to shaft . Push and pull the PTO driveline back and forth several times and make sure it is securely attached to the PTO shaft .
Set-up Instructions Switch to Working Position CAUTION: The Bag Cutting Knife is SHARP! Start the tractor and engage the hydraulic system . Use extreme care when placing the bag cutting knife in the work or transport position. Use of gloves is recommended. Test the unloader hydraulic system by raising the unloader with the axle lever .
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Set-up Instructions Switch to Working Position (Cont’d) NOTE: Use the top hole (1) if the grain bag is flatter. Remove the lower retaining clip (1) and pin on the bag CAUTION: The Bag Cutting Knife is SHARP! cutting knife . Use extreme care when placing the bag cutting knife in the work or transport position.
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Set-up Instructions Switch to Working Position (Cont’d) Raise the top auger (1) to the operating position . Move the auger lever (2) forward to raise the top auger . Be sure both augers are fully connected and sealed to ensure no grain can escape . CAUTION: Pinch point.
Operating Instructions Getting Started Remove the planks sealing the bag . NOTE: The bag may be cut with a utility knife to remove Extracting grain from the bag requires three people . One the planks. Cut the bag at the planks, leaving as person is needed in or on the tractor at all times to start much of the bag end as possible.
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Operating Instructions Getting Started (Cont’d) Use the handle (1) on the ratchet jack to raise or lower the cross augers . Repeat the procedure on the opposite side of the unloader . NOTE: Lower/raise the axle until the cross augers are Move the tractor and unloader into position at the end approximately 3 in.
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Operating Instructions Getting Started (Cont’d) Back the tractor and unloader over the end of the bag (between the wheels) and slide the bag underneath the Use roller lever (1) to start and stop roller rotation . cross augers . Back up until the bag end reaches the bag roller .
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Operating Instructions Getting Started (Cont’d) Pull the roller lever (1) into the detent position . The roller will start rotating and pulling the grain bag unloader and Wrap the grain bag over the top side of the roller . tractor into the bag . NOTE: Make sure the parking brake is OFF.
Operating Instructions Grain Extraction NOTE: Once the grain bag has been opened, it is recommended that the grain bag be emptied completely. Adjust the roller speed (1) and roller height (2) to avoid grain build-up by the roller and the lower mound at the bottom of the bag .
Operating Instructions Grain Extraction (Cont’d) Pause Operation Move the roller lever (1) forward to remove it from the The mound at the bottom of the bag should be adequate distance from the tires on the grain bag unloader . detent position to stop bag roller rotation . Gradually decrease the PTO speed and disengage the tractor PTO .
Operating Instructions End of Bag Extraction Bag Removal NOTE: Once the grain bag is opened, it is recommended that the grain bag be emptied completely. It is important to reach the end of the grain bag with the unloader as centered as possible . Grain can be extracted until the cross augers touch the end of the grain bag .
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Operating Instructions Bag Removal (Cont’d) Re-engage the clutch (1) by quickly rotating in either direction and snapping back into place . Pull on the handles (1) to disengage the roller clutch (2) until it locks in the open position . The roller should move freely .
Operating Instructions Resealing The Grain Bag Switching to Transport Position Remove the retaining clip (1) and pin . Using the handle, Fold each side of the grain bag towards the center . Start pivot bag cutting knife into the storage position . the fold approximately 2 ft .
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Operating Instructions Switching to Transport Position (Cont’d) Pull back on the axle lever (1) to raise the unloader . STORAGE POSITION TRANSPORT POSITION Remove the cylinder stop(s) (1) from the storage position and place on the axle cylinder(s) (2) and secure with the Lower the top auger (1) to the transport position .
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Operating Instructions Switching to Transport Position (Cont’d) Remove the retaining clip and pin (1) and rotate the PTO Use the handle (1) on the ratchet jack(s) to raise the holder bar (2) out . Rotate the unloader PTO driveline up working wheels off the ground (both sides) .
Operating Instructions Transporting on a Roadway The grain bag unloader must be in the transport position . See “Switching to Transport Position” on page 27 . Turn on the hazard warning lights and headlights during road travel . Do not exceed speed rating (20 mph) on the factory- provided tires .
Operating Instructions Transporting on a Roadway (Cont’d) Grain Bag Unloader Transporting Place PTO driveline in the stored position (See page 29) . GBU12 shown in the transport position . NOTE: Tongue jack must be in the stored position before transporting. Remove pin (1) rotate the tongue jack (2) to the stored position and reinstall pin .
Maintenance Maintenance Item Locations Sprocket, Upper Main Auger Drive Sprocket, Upper Main Auger Drive Page 36 Page 36 Roller Bearing Left Side Roller Bearing Left Side Page 37 Page 37 Hanger Bearing On Main Auger Hanger Bearing On Main Auger Alignment Point Alignment Point Page 36...
Maintenance General Maintenance Fluids And Lubricants CAUTION: Use proper safety procedures “Maintenance Safety” page before performing any service or maintenance on the grain bag when handling petroleum products loader . including, but not limited to, the use of rubber gloves and eye protection. WARNING: Always shut down the tractor, remove the ignition key, set the park brake Grease - Use an SAE multipurpose high temperature...
Maintenance Lubrication Grease Points Use a SAE or #2 general purpose lithium based grease unless noted otherwise . NOTE: See “Grain Bag Loader Identification” on page 11 for component location and identification. Location: Base end bearing of the left cross auger (1). Every 8 hours of operation.
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Maintenance Lubrication (Cont’d) Grease Points (Cont’d) Location: Right and left side of axle (1). Location: Roller bearing (1) (left side). Every 20 hours of operation. Interval: Every 8 hours of operation. Interval: Location: Roller Bearing (1) (Right side). Every 8 hours of operation. Interval: Location: Center axle (1).
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Maintenance Lubrication (Cont’d) Grease Points (Cont’d) Location: Roller Drive Chain - Lubricate the chain of the roller drive. Lubricate the top side. Every 40 hours of operation. Interval: Location: Hinge pin on the main auger (1). Every 8 hours of operation. Interval: Location: Height adjustment ratchet on both working wheels (1).
Maintenance Roller Drive Chain Inspection And Adjustment Roller Chain Inspection WARNING: Never attempt to make any adjustments while the tractor engine is running or the key is in the “ON” position in the tractor. Before leaving the operator’s position, disengage power to the machine and remove ignition key.
Maintenance Troubleshooting To assist with maintenance and repair, the following list of common problems and corrections is provided. PROBLEM POSSIBLE CAUSE SOLUTION PTO driveline vibration . PTO driveline loose or worn . Check both driveline connections . Tighten and repair if necessary . PTO driveline u-joints dry .
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Maintenance Troubleshooting (Cont’d) PROBLEM POSSIBLE CAUSE SOLUTION Cross augers slow or not rotating . Pressure relief failure . Check relief valve (3000 PSI) . Pressure relief stuck open . Reduce pressure to 2500 PSI or less and allow the relief valve to re-seat . Hydraulic spool not shifting .
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Maintenance Troubleshooting (Cont’d) PROBLEM POSSIBLE CAUSE SOLUTION Hydraulic system operating hot . Oil cooler motor failure . Replace motor or third pump . Oil cooler fins are plugged with Clean oil cooler . debris . Oil cooler pump failure . Replace third pump .
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Maintenance Troubleshooting (Cont’d) PROBLEM POSSIBLE CAUSE SOLUTION GBU12 sinking in soft ground . Soft ground conditions . Adjust outrigger wheels down using the ratchet jack adjuster . Allow soil conditions to dry and firm up . Grain bag tears when unloading on Pulling too hard on grain bag with Push slowly back with tractor while soft ground .
Parts Identification Top Auger Assembly (Cont’d) Grain Bag Unloader OM...
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Parts Identification Top Auger Assembly (Cont’d) QTY. PART # DESCRIPTION N12220 MOTOR, HYD MAIN AUG 15 CIR 4014 BOLT, 1/2" x 1 - 3/4" GRADE 5 4054 NUT, LOCK 1/2" N29745 MOUNT, GBU12 TOP AUG MOTOR N29742 BOLT, SHOULDER 1/2" x 1" 4052 NUT, LOCK 3/8"...
Parts Identification Top Auger QTY. PART # DESCRIPTION N16700 NUT, 1" - 14 GR 8 FINE THREAD TOPLOCK N17023 BOLT, 1" - 14 x 5" GR 8 FN THR N29218 AUGER, GBU12 TOP BASE N29381 SHAFT, GBU12 TOP AUGER TOP DRV GBU12 Auger Hanger QTY.
Parts Identification Hose Assembly (Cont’d) Top Auger Cylinder Wheel Lift Cylinders Top Hose Top Port Bottom Hose Bottom Port Pressure Guages Roller Motor Grain Bag Unloader OM...
Parts Identification Hydraulic Oil Cooler Case Drain Plug To The Top Big Plug On Top QTY. PART # DESCRIPTION N16173 ELBOW, 90 DEG - 8-MJC - 10MOR N17003 ELBOW, 90 DEG - 8MJIC - 6MOR N19270 ELBOW, 90 DEG - 16MJIC - 16FJC N19272 TEE, 16MJIC-16FJIC-16MJIC, 6602-16 N21381...
Parts Identification Kit, GBU12 2-1/2" Dual Spindle (N154230) * For parts breakdown of item 1, Spindle (N123534), see page 94. ** For parts breakdown of item 2, Hub (N29054), see page 95. QTY. PART # DESCRIPTION N123534 SPINDLE, GBU12 2-1/2" DUAL N29054 HUB, 6 BOLT 6"...
Parts Identification Spindle, 2-1/2" Dual (N123534) To order a complete spindle (which includes items 1-3) use part number N123534. QTY. PART # DESCRIPTION 4092 PIN COTTER 5/32" X 2" N89461 WASHER, 2 X 15/16 X .164 PLAIN N89489 NUT, CASTLE 7/8"-14 Grain Bag Unloader OM...
Parts Identification Hub, 6 Bolt 6" (N29054) To order a complete 6-bolt hub assembly, use part number N29054. To order a hub casting with studs and cup bearings, use part number N89170 (item 6). QTY. PART # DESCRIPTION N89176 SEAL, 6-BOLT HUB N29054 N89172 BEARING, TAPERED ROLLER 1 .796 N23764...
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