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SUMMIT TRACTORS BHX Series Operator's Manual/Parts Catalog

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MODEL B
B X SERIES
INCLUDES OPERATOR'S MANUAL
& PARTS CATALOG
SERIAL NUMBER 10001 AND LATER
NO. 032679

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Summary of Contents for SUMMIT TRACTORS BHX Series

  • Page 1 MODEL B B X SERIES INCLUDES OPERATOR’S MANUAL & PARTS CATALOG SERIAL NUMBER 10001 AND LATER NO. 032679...

  • Page 3: Warranty Conditions

    Right To Make Design and Product Changes: Summit Tractors reserves the right to make changes in the design and other changes in its Summit Tractors Products at any time without incurring any obligation with respect to any product previously ordered, sold, or shipped.
  • Page 4 CONGRATULATIONS You are now the proud owner of a Summit Tractors Backhoe. This Backhoe is a product of quality engineering and manufacturing. It is made of fine materials and under a rigid quality control system. It will give you long, satisfactory service.

  • Page 5: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS UNDERSTAND SIGNAL WORDS DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE is used to address practices not related to physical injury.
  • Page 6 4. BE SURE the area is clear of overhead or underground utility hazards. Consult local Utilities before digging. Do not leave the operator’s seat if any part of the tractor, loader, or backhoe contacts electric lines or underground cables. 14. ALWAYS swing bucket uphill to dump when on a hillside and keep loaded bucket low. dipperstick or bucket.

  • Page 7: Avoid High-Pressure Fluids

    6. GUARD AGAINST INJURY when driving connecting pins or performing any repair in which particles can chip from work piece or striking tool. AVOID HIGH-PRESSURE FLUIDS sure to stop engine and relieve all pressure before disconnecting lines. Be sure all connections are tight and that lines, pipes, and hoses are not damaged before applying pressure to the system.

  • Page 8: Safety Decals

    SAFETY DECALS The safety of the operator was a prime consideration in the design of the backhoe. Proper shielding, convenient controls, simple adjustments and other safety features have been built into this implement. The following immediately if they are missing. Contact your dealer for replacements. Location: Right Side of Control Tower Location: Right and Left Side of Control Tower...
  • Page 9 IMPORTANT FEDERAL LAWS AND REGULATIONS* CONCERNING EMPLOYERS, EMPLOYEES AND OPERATIONS. It is not intended as a legal interpretation of the laws and should not be considered as such). This Act Seeks: “…to assure so far as possible every working man and woman in the nation safe and healthful working conditions and to preserve our human resources…”...

  • Page 10: General Operation

    GENERAL OPERATION SWING CYLINDER SAFETY CYLINDER CYLINDER BUCKET LINK MAINFRAME THUMB KIT STABILIZER SAFETY CYLINDER STABILIZER LEG STABILIZER PAD CAUTION BOOM CROWD SWING BUCKET other hazards. LEFT HAND balance tractor at all times. 20% of the total tractor, STABILIZER front axle. 4.

  • Page 11: Operating The Backhoe

    The two operations of the boom lever, combined function. A detent or stop should be felt when the lever with the two operations performed by the bucket and is pushed forward to move the boom down. Pushing dipperstick control lever, provide four simultaneous the lever forward more will overcome the detent and operations from the two levers, keeping cycle time to a minimum.
  • Page 12 with their speed and movements. The engine speed and the size of the hydraulic system will determine the speed of cylinder operation. When powering from tractor systems with higher output than required, reduce engine RPM to obtain acceptable backhoe operating speed. Swing the boom several times to practice controlling the speed of swing.

  • Page 13: Transporting The Backhoe

    TRANSPORTING THE BACKHOE CAUTION decal: 1. ALWAYS engage safety locks as shown In General Location: Right Side of Boom and around curves to prevent tipping. or excavation. Before leaving backhoe operator’s seat, position SWING the backhoe for transport by raising boom, crowding dipperstick in, swinging to center and raising the stabilizers.

  • Page 14: When Transporting

    WHEN TRANSPORTING CAUTION DO NOT CHAIN BACKHOE DOWN IN ORDER TO SECURE TRACTOR TO TRAILER. DO NOT ATTACH HOLD DOWN CHAINS ANYWHERE ON BACKHOE ASSEMBLY. SECURE LOADER. BUCKET SHOULD BE LOWERED TO BED WHEN POSSIBLE. PLACING THE STABILIZERS Set the stabilizers to remove weight from the rear wheels. The wheels are to remain touching the ground as this reduce stability and digging depth, but will impair performance and impose unnecessary stress on the unit.

  • Page 15: Filling The Bucket

    FILLING THE BUCKET As the pile is approached, dump the bucket. When the bucket Control the bucket attitude throughout the digging cycle to is empty, the dipperstick and bucket are in position to resume keep teeth at the proper angle for best penetration. This digging upon return to the trench.
  • Page 16 SIDE SLOPE EXCAVATING OR TRENCHING MISCELLANEOUS Dig with the backhoe uphill whenever possible. platform under the rear tires and the stabilizers. The platform distributes the load over a larger area and lessons the possibility of a cave-in. The platform also tends to keep the unit from creeping rearward if hard digging is encountered.

  • Page 17: Beginning Of Season

    BACKHOE SERVICE BEGINNING OF SEASON • Remove all protective covering. CAUTION • Check hydraulic hoses for deterioration and replace, if necessary. • Lubricate all grease fittings and oil handle linkage. • Check hydraulic system for loss of fluid and, if 1.

  • Page 18: Tightening Nuts And Bolts

    BUCKET TOOTH POINTS The bucket tooth points are self-sharpening and will at the beginning of operation and again approximately require little attention; however, these can be replaced halfway through the work day. when they become badly worn or broken. Lower stabilizers to the ground, extend dipperstick and A tooth can be replaced by unbolting it from the bucket bucket and lower boom so bucket rests on the ground cutting edge.
  • Page 19 INSTALLING BACKHOE TO TRACTOR SEAT MOUNT ASSY TRACTOR MOUNT ASSY. MOUNTED TO TRACTOR. DRAFT ARM "L"-BRACKET MOUNTING L-PIN SIDE PLATE ASSY. MOUNTED TO MAINFRAME Note: When installed,Lower pins in backhoe frame will rest in hooks of tractor mounts. Top holes in backhoe frame will align with holes in tractor mounts.
  • Page 20 ASSY, MOUNT KIT- S0B1674 (SEE PAGE 19B PARTS LIST)
  • Page 21 S0B1674 MOUNT ASSY - PARTS BREAKDOWN INDEX 0 0 7 3 8 4 0 0 8 1 6 4 0 0 8 1 7 8...
  • Page 22 ASSY, DECAL PLACEMENT- SMB1673 (SEE PAGE 19E PARTS LIST)
  • Page 23 ASSY, DECAL PLACEMENT- SMB1673-CONTINUED (SEE PAGE 19E PARTS LIST)
  • Page 24 SMB1673 DECAL PLACEMENT - PARTS BREAKDOWN INDEX...
  • Page 25 ASSY, SEAT MOUNT KIT- SMB1674 (SEE PAGE 19G PARTS LIST)
  • Page 26 SMB1674 SEAT ASSY - PARTS BREAKDOWN INDEX 0 0 8 1 7 8...
  • Page 27 ASSY, HOSE KIT- SMB1674 (018353) (018354) (018351) (018353) (018351) 018354 (018354) (SEE PAGE 20 PARTS LIST)
  • Page 28 ASSY, HOSE KIT- SMB1674 CONTINUED) (018353) (SEE PAGE 20 PARTS LIST)
  • Page 29 SMB1674 HOSE KIT - PARTS BREAKDOWN INDEX...
  • Page 30 REMOVING AND STORING BACKHOE CAUTION 13. Lock tractor park brake. 14. Stop engine. to keep tractor movements slow and controllable. 15. Cycle boom control lever to relieve backhoe system pressure. store backhoe. CAUTION 1. Park tractor safely. 2. Start engine and run at slow idle. been installed.
  • Page 31 VALVE REPAIR – DISASSEMBLY Replacing Spools Seals: Note: For the purpose of these instructions we will consider the control handle side of the valve as the spool and insert in seal counter bore. Replace back-up FRONT, and the opposite side as the BACK. washer and seal retainer.

  • Page 32: Hydraulic Trouble Shooting

    HYDRAULIC TROUBLE SHOOTING operational problems. Match your problem with the typical problem examples given, and note the numbers given for the possible cause. These numbers correspond with the possible cause and correction paragraphs that follow. Do not use your hand to check for leaks. Use a piece of cardboard or paper to check for leaks. Stop engine and relieve pressure before connecting or disconnecting lines.
  • Page 33 replace damaged parts. 11. Scored piston rods and worn rod guides in cylinder – replace or rebuild the cylinder; replace damaged parts. 12. Bent piston rod in cylinder – replace or rebuild the cylinder; replace damaged parts. 13. Worn or damaged rod seals on cylinder; external leaks – repack cylinder. Rebuild cylinder, replacing damaged parts as necessary.
  • Page 34 ASSEMBLY CAUTION The backhoe has been partially disassembled and capacity and is in the proper position. Do not allow strapped to a skid for shipping purposes. Initial installation on the tractor will require a hoist or other hoist. device capable of safely lifting the entire backhoe from the skid.
  • Page 35 BASE BACKHOE PARTS DIAGRAMS (SEE PAGE 30 & 31 FOR PARTS LIST)
  • Page 36 (SEE PAGE 30 & 31 FOR PARTS LIST)
  • Page 37 BASE BACKHOE PARTS DIAGRAMS (SEE PAGE 30 & 31 FOR PARTS LIST)
  • Page 38 BASE BACKHOE PARTS DIAGRAMS (SEE PAGE 30 & 31 FOR PARTS LIST)
  • Page 39 (SEE PAGE 30 & 31 FOR PARTS LIST)
  • Page 40 BASE BACKHOE PARTS DIAGRAMS (SEE PAGE 30 & 31 FOR PARTS LIST)
  • Page 41 (SEE PAGE 30 & 31 FOR PARTS LIST)
  • Page 42 BASE BACKHOE PARTS BREAKDOWN INDEX...
  • Page 43 BASE BACKHOE PARTS BREAKDOWN CONTINUED INDEX...
  • Page 44 STABILIZER CYLINDER Index Description Number Plug Leather Washer Retaining Ring Cylinder Tube Weldment 903920...
  • Page 45 SWING CYLINDER Index Description Number Port Plug Piston Ring Piston Seal Rod Seal Back-Up Ring Wiper Seal Cylinder Tube Weldment...

  • Page 46: Bucket Cylinder

    BUCKET CYLINDER NOTE LOCATION OF 45 DEGREE CHAMFER ON PISTON ASSEMBLY Index Description Part No. Port Plug Rod Seal Back-Up Ring Wiper Seal Cylinder Tube Weldment...

  • Page 47: Boom Cylinder

    BOOM CYLINDER NOTE LOCATION OF 45 DEGREE CHAMFER ON PISTON ASSEMBLY Index Description Number Rod Seal Back-Up Ring Rod Wiper...
  • Page 48 DIPPERSTICK CYLINDER NOTE LOCATION OF 45 DEGREE CHAMFER ON PISTON ASSEMBLY Index Description Part No. Step Seal U-Cup Seal Back-Up Ring Gland Cylinder Tube Weldment...
  • Page 49 BACKHOE BUCKETS Index Number Description SMB1726 8” Bucket SMB1730 12” Bucket SMB1728 16” Bucket 066339 Bucket Data: SAE Struck Heaped Shipping Number Width Capacity Capacity Weight SMB1726 8” .42 cu.ft. .46 cu.ft. 38 lbs. 59 lbs. SMB1730 SMB1728 SMB1692 OPTIONAL STREET PAD KIT Index Number Description...
  • Page 50 CONTROL VALVE SERVICE COMPONENTS (SEE PAGE 39 FOR PARTS LIST)
  • Page 51 Vendor...
  • Page 52 MECHANICAL THUMB KIT Number Description 865454...
  • Page 53 BACKHOE - DIMENSIONS AND SPECIFICATIONS Maximum Digging Depth 78 inches Digging Depth (two foot flat bottom) 76 inches Swing Arc 148 degrees Loading Height (bucket at 60 deg) 64 inches Reach from Center line of Swing Pivot 109 inches Transport Height (maximum) 72 inches Bucket Rotation 180 degrees...
  • Page 54 SAE J1701 Revised MAR1999 TABLE 2—TORQUE-TENSION RELATIONSHIPS FOR SAE GRADES 2, 5, AND 8 Nominal Grade 2 Grade 2 Grade 2 Grade 5 Grade 5 Grade 5 Grade 8 Grade 8 Grade 8 Size Stress Clamp Torque Torque Clamp Torque Torque Clamp Torque...
  • Page 55 SAE J1701M Issued JUL96 TABLE 2—TORQUE-TENSION RELATIONSHIP FOR METRIC PROPERTY CLASSES Major Diameter Class 4.6 Class 4.6 Class 4.6 Class 4.8 Class 4.8 Class 4.8 Class 5.8 Class 5.8 Class 5.8 Stress Clamp Torque Torque Clamp Torque Torque Clamp Torque Torque Thread Area...
  • Page 56 be careful..avoid accidents...

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Bhx76

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