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Summary of Contents for Bush Hog 2165
- Page 1 BACKHOES BUSH HOG, ® L.L.C. Operator’s Manual MODELS 2165 / 2175 / 2185 / 2195 ASSEMBLY • OPERATION • MAINTENANCE $4.00 50033329...
- Page 2 CONGRATULATIONS! You have invested in the best implement of its type on the market today. The care you give your Great Bend implement will greatly determine your satisfaction with its performance and its service life. We urge a careful study of this manual to provide you with a thorough understanding of your new implement before operating, as well as suggestions for operation and maintenance.
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Page 3: Table Of Contents
BACKHOES Operator’s Manual SECTION/PARA Warranty ......2 Dealer Preparation Check List ... . . 3 Safety Procedures. -
Page 4: Warranty
(1) year for non-commercial, state, and municipalities’ use and ninety (90) days for commercial use from date of retail sale. The obligation of Great Bend / Bush Hog L.L.C. to the purchaser under this warranty is limited to the repair or replacement of defective parts. -
Page 5: Dealer Preparation Check List
DEALER PREPARATION CHECK LIST 2165, 2175, 2185 and 2195 BACKHOES BEFORE DELIVERING MACHINE - The following check list should be completed. Machine properly assembled. All safety decals readable (See decal page). All bolts tightened to torque specifications given in the torque chart. -
Page 6: Safety Alert Symbol
Safety Alert Symbol Signal Words Safety Signs The signal words DANGER, WARNING, AND CAUTION are used on the equipment safety signs. These words are intended to alert the viewer to the existence and the degree of hazard seriousness. White letters on Black letters on ORANGE Black letters on... -
Page 7: Important Safety Precautions
IMPORTANT SAFETY PRECAUTIONS This symbol is used to call attention to safe- ty precautions that should be followed by the operator to avoid accidents. When you see this symbol, carefully read the message that follows and heed its advice. Failure to comply with safety precautions could result in serious bodily injury. -
Page 8: Avoid High-Pressure Fluids
SAFETY PRECAUTIONS CONTINUED 12. DO NOT dig under stabilizers or tractor backhoe. Soft ground or sandy soil can cause cave-ins. 13. KEEP BUCKET away from the stabilizer area to avoid possible stabilizer damage. 14. ALWAYS swing bucket uphill to dump when on a hillside and keep loaded bucket low. 15. -
Page 9: Federal Laws And Regulations
IMPORTANT FEDERAL LAWS AND REGULATIONS* CONCERNING EMPLOYERS, EMPLOYEES AND OPERATIONS. *(This section is intended to explain in broad terms the concept and effect of the following federal laws and regulations. It is not intended as a legal interpretation of the laws and should not be considered as such). U.S. -
Page 10: General Operation
GENERAL OPERATION Figure 1 Swing Lock Pin Location Mainframe Stabilizer Cylinder Stabilizer DIRECTIONS: The terms right, left, front and back shall be determined from the position of the operator when seated in the operating position on the backhoe. Engine Speed The speed at which the backhoe operates is partially dependent on engine RPM. -
Page 11: Operating The Backhoe
Figure 3 Safety Locks Swing Lock Pin Boom Transport Lock Pin SWING LEFT AND RAISE the boom by moving the control lever back and to the left. SWING RIGHT AND LOWER the boom by moving the lever forward and to the right. SWING RIGHT AND RAISE the boom by moving the lever back and to the right. -
Page 12: Transporting The Backhoe
It is not difficult to become an efficient operator. Control lever operating decal is located on back of the control console. Study this decal. It will assist you in becoming familiar with the controls. Smooth, light handling of the controls will result in the most efficient backhoe operation. -
Page 13: Placing The Stabilizers
CAUTION To avoid possible injury, observe the following safety rules when transporting the backhoe: 1. ALWAYS engage safety locks as shown on Figs. 1 and 3 when transporting backhoe. 2. TRAVEL SLOWLY over rough terrain, on hillsides, and around curves to prevent tipping. 3. -
Page 14: Filling The Bucket
General Operations FILLING THE BUCKET Control the bucket attitude throughout the digging cycle to keep teeth at the proper angle for best penetration. This will minimize dragging and scraping the bucket through the ground. When digging in hard-packed soil, bucket penetration can be increased by applying down pressure with the boom while crowding in and curling the bucket. -
Page 15: Backfilling
General Operations SIDE SLOPE EXCAVATING OR TRENCHING Dig with the backhoe uphill whenever possible. Level the backhoe on slopes with the stabilizers to dig plumb trenches, or use the backhoe or loader to cut a level slot for the uphill wheel and stabilizer. Pile the spoil from the slot on the low side. -
Page 16: Service
SERVICE CAUTION To avoid possible injury, observe the following safety rules WHEN SERVICING the backhoe: 1. ENGAGE safety locks as shown in Figures 1 & 3 before servicing the backhoe. 2. DO NOT oil, grease or adjust the backhoe while it is in motion. -
Page 17: Tooth Replacement
(*) shown in Figures 7 and 8, raise boom and install transport lock pin shown in Figure 1. On Models 2165, 2175, 2185 and 2195 the follow- ing locations should be oiled with SAE30 oil: A. All Control Handle Linkages B. -
Page 18: Removal / Storage
REMOVAL FROM TRACTOR - STORAGE Figure 9 Backhoe Fully Extended The backhoe is self-assisting during the installation and removal procedures. For removal and storage, follow these steps: 1. Install the swing safety lock pin as shown in Figures 1 and 3. 2. -
Page 19: Stabilizer Pads
STABILIZER PADS The backhoe is supplied with flip-over stabilizer feet as standard equipment. They are suitable for most backhoe work and generally are all that is ever required. However, foot pad kits are available as options. These kits bolt to the standard feet and increase the versatility of the backhoe. - Page 20 TROUBLESHOOTING (Continued) Problem Machine loses power after operating satisfactorily initially Loss of power in lift or crowd cylinder, but other cylinders function properly Loss of power in any one cylinder, including lift and crowd Cause Diverter valve on prime move leaking or bypassing oil internally through valve to reservoir Excessive back pressure...
- Page 21 Troubleshooting (Continued) Problem Loss of power in any one cylinder, including lift and crowd Loss of power in swing cylinders, but other cylinders functioning properly. Maximum swing action cannot be obtained Slow operation of machine (lack of power) all cylinders Cause Worn or damaged rod seals on cylinder;...
- Page 22 Troubleshooting (Continued) Problem Slow operation of machine (lack of power) all cylinders Spongy or jerking action of cylinders and/or noisy operation Lift, crowd or bucket cylinders drop under load when control spools shifted from neutral Load drops or settles Cause Relief valve setting in backhoe control valve too low or defective Low oil supply in reservoir...
- Page 23 Troubleshooting (Continued) Problem Leaky cylinders Leaky valve Sticky valve spool Cause Oil is bypassing cylinder piston, scored piston, worn piston packing, or defective piston assembly Scored piston rods and worn guides in cylinder Bent piston rod in cylinder Worn or damaged rod seals on cylinder;...
- Page 24 Troubleshooting (Continued) Problem Unable to push valve spool in Spring centered spools do not return to neutral Cause Paint on valve spool; sticking valve spool or scored valve spool Oil leakage past spool seal into spool cap Bent spool Foreign particles Misalignment of control handle linkage Paint on valve spool;...
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Page 25: Valve Repair
VALVE REPAIR Figure 11 FLOAT ASSEMBLY SPOOL CONTROL KIT Replace Center Section Assemblies: Note: For the purpose of these instructions we will consider the section containing the MAIN RELIEF VALVE as the left side of the valve. 1. Remove control valve from the backhoe. 2. -
Page 26: Assembly
1. Remove control valve from the backhoe. 2. Thoroughly clean the exterior of the valve before beginning disassembly procedures. 3. At the BOTTOM of the valve remove screws, cap and spool control kit. Keep parts in order of disas- sembly. See figure 11 for parts involved in the make- up of the spool control kit. -
Page 27: General Description
Mounting Backhoe to Tractor or Skid Steer loaders The Bush Hog backhoe can be mounted to the power source using three different attaching kits. 1. To an agricultural tractor’s 3-point hitch linkage using the 3-point hitch kit. The 3-point hitch kit is the 6. - Page 28 3-Point Hitch Linkage 2165 & 2175 The backhoe is mounted on the tractor lower link arms and an adjustable upper link is supplied to replace the tractor upper link. A set of stabilizer arms is included. They bolt from the adjustable upper link to the backhoe mainframe, locking the hoe rigidly in one position.
- Page 29 ASSEMBLY (Refer to Figures 14 & 15) IMPORTANT: Tighten all hardware to the torque requirements specified in the torque chart. WARNING To prevent bodily injury, do not operate backhoe unless Link Weldments (Figure 15 - Items 1 & 2) are properly installed and adjusted. Failure to do so may result in backhoe being thrust upward, crushing operator against cab or ROPS.
- Page 30 Figure 15 (2165 &2175) 3-Point Hitch Linkage The backhoe is mounted on the tractor lower link arms and an adjustable upper link is supplied to replace the tractor upper link. A set of stabilizer arms are included. They bolt from the adjustable upper link to the backhoe mainframe, locking the hoe rigid- ly in one position.
- Page 31 Figure 16 (2185 & 2195) ASSEMBLY IMPORTANT: Tighten all hardware to the torque requirements specified in the torque chart on page 45. WARNING To prevent bodily injury, do not operate backhoe unless Link Weldments ( Figure 16 - Items 1 & 2) are properly installed and adjusted.
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Page 32: Pto Pump Kits
Figure 17 Backhoe Mainframe General Description The PTO Pump Kits consist of those parts required to power the backhoe from the tractor’s PTO shaft. They include the PTO pump (6 or 8 gpm) and adapter, reservoir, filtration system, hydraulic hoses, and fittings. -
Page 33: Hydraulic Hook-Up To Tractor
identical fitting to “In/Pressure” port of bulkhead con- nection. Orient fittings so that free ends of fittings point horizontally toward center of backhoe. 6. Take one end of 28” hydraulic hose (23) and route under foot platform, through hole at top of left hand backhoe side plate, and connect to 90°... - Page 34 Figure 18 Torque Plate Shown In “Up” Position Around 3-Point Hitch Link Torque Plate In “Down” Position valve or other accessory valve is connected to the tractor system, and whether the tractor has an open- center system (constant pumping of oil to control valve and back to reservoir) or a closed-center sys- tem (no flow of oil until there is a demand at one hydraulic cylinder).
- Page 35 Because a closed-center system requires no flow of oil through the backhoe control valve when the levers are in a neutral position, the 2165 backhoe must not be connected to a closed-center tractor hydraulic system. A PTO pump kit is required if the backhoe is to be mounted to a tractor with a closed-center hydraulic system.
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Page 36: Hookup Diagram
Hydraulic Hook-Up (2175, 2185, 2195) For Tractors With Closed-Center Hydraulic Systems (Figure 21) There are two basic types of hydraulic systems, open- center and closed-center. The open-center system con- stantly pumps oil through the hydraulic cylinder operat- ing valves and returns the oil to the reservoir. The closed-center system does not pump oil until there is a demand for oil from one of the hydraulic cylinders. -
Page 37: Power Beyond Kit
FIRST PROCEDURE ASSEMBLY OF A BUSH HOG BACKHOE TO A GREAT BEND LOADER VALVE IMPORTANT: Improper hydraulic hook-up can cause serious damage to backhoe control valve or other hydraulic components. - Page 38 GREAT BEND BACKHOE & GREAT BEND LOADER VALVE Figure 23 NOTE: Large loader valve (Walvoil) shown. Small loader valve porting is different. Refer to loader operator’s manual for different valves. Inlet Great Bend Loader Valve (Supplied With Valve) Backhoe Bulkhead Connection (Located on inside of mainframe side plate at left rear of hoe) Backhoe Valve...
- Page 39 SECOND PROCEDURE ASSEMBLY OF A GREAT BEND BACKHOE TO A NON GREAT BEND LOADER VALVE - OR - GREAT BEND BACKHOE TO LOADER VALVE USING PTO PUMP KIT OPTION Assembly of a Great Bend backhoe to a non-Great Bend loader valve, OR a Great Bend Backhoe to a loader valve using the PTO Pump Kit option.
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Page 40: Flow Divider Kit
FLOW DIVIDER KIT (Optional) General Description The Flow Divider Kit consists of those parts required to power the backhoe from tractors or skid steer loaders that have hydraulic flow rates above 12 gal- lons per minute (gpm). It includes the flow divider valve, hydraulic hoses to connect the valve to the backhoe, and adapter fittings. - Page 41 Tractors with an auxiliary hydraulic flow greater than 15 gpm Connect JIC swivel run tee (9) to 90° male adapter (10) on “K2” port on valve as shown in Figure 27. IMPORTANT - The location of the JIC swivel run tee will ensure that proper flow is provided to the back- hoe for smooth operation.
- Page 42 Skid Steers with an auxiliary hydraulic flow of 15 gpm or less - Figure 29 Assemble straight male adapter (6) to “K3” port on valve as shown in Figure 29. Assemble JIC swivel run tee (9) to straight male adapter (6). Assemble 90°...
- Page 43 Figure 29 FOR SKID STEER HYDRAULIC FLOW OF 15 GPM OR LESS To Backhoe Bulkhead “Return” Connection To Backhoe Bulkhead “Pressure” Connection Figure 30 FOR SKID STEER HYDRAULIC FLOW GREATER THAN 15 GPM To Backhoe Bulkhead “Return” Connection To Backhoe Bulkhead “Pressure”...
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Page 44: General Specifications
Bucket Cylinder Digging Force Dipperstick Cylinder Digging Force` Hydraulic Volume Requirements Hydraulic Pressure Requirements Recommended Tractor HP Requirements Specifications May Vary Depending on Tractor Model and are Subject to Change Without Notification. Tractors Must Be Equipped 2165 7’0” 6’6” 180° 4’4” 9’4”... -
Page 45: Removing From Shipping Pallet
REPOSITION STABILIZER CYLINDERS BEFORE REMOVING BACKHOE FROM SHIPPING PALLET Cylinder ports must be pointing upward and hoses routed above the cylinder to main- frame pivot pin connection. Palletized backhoe as shipped from fac- tory. Remove stabilizers and fasteners from pallet. Position stabilizer between mounting lugs and pin into place. -
Page 46: Safety Decals
SAFETY DECALS The safety of the operator was a prime consideration in the design of the backhoe. Proper shielding, conve- nient controls, simple adjustments and other safety features have been built into this implement. The following decals are located on the backhoe. Keep decals clean and replace them immediately if they are missing. Contact your dealer or Great Bend for replacements. -
Page 47: Torque Specifications
TORQUE SPECIFICATIONS AMERICAN Bolt Head Markings SAE Grade 2 (No Dashes) SAE Grade 5 (3 Dashes) Wrench SAE Grade 8 Size “A” (6 Dashes) METRIC Wrench Size “A” Numbers appearing on bolt heads indicate ASTM class. *Use 75% of the specified torque value for plated fasteners. - Page 48 ® BUSH HOG, L.L.C. P.O. Box 1039 • Selma, AL 36702-1039 (334) 874-2700...
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