BRABER EQUIPMENT BE-SG24 Stump Grinder Instruction Manual

BRABER EQUIPMENT BE-SG24 Stump Grinder

IMPORTANT SAFETY INFORMATION

WARNING
Read and understand all instructions. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury. The warnings, cautions, and instructions discussed in this instruction manual cannot cover all possible conditions or situations that could occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product but must be supplied by the operator.

• All Federal and State laws and any regulation having jurisdiction covering the safety requirements for use of the machine take precedence over the statements in this manual. Users of this machine must adhere to such regulations.
• Only people that have read and understood these instructions are permitted to use the stump grinder.
• Inspect the stump grinder and tractor at the beginning of every working day and repair any defects.
• Stop the engine and make sure that the machine will not start accidentally while repairing defects or performing maintenance.
• Do not disable or remove the stump grinder’s safety devices.
• Always locate and mark buried wires, cables, and pipelines prior to grinding.

PERSONAL SAFETY

• Stay alert, watch what you are doing and use common sense when operating machinery. Do not use a machine when you are tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating machinery may result in serious personal injury.
• Dress properly. Do not wear loose clothing, dangling objects, or jewelry. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts. Air vents often cover moving parts and should be avoided.
• Use safety apparel and equipment. Use safety goggles or safety glasses with side shields which comply with current national standards, or when needed, a face shield. Use a dust mask in dusty work conditions. This applies to all persons in the work area. Also use non-skid safety shoes, hardhat, gloves, dust collection systems, and hearing protection when appropriate.
• Do not overreach. Keep proper footing and balance at all times.
• Remove adjusting keys or wrenches before connecting to the power supply or turning on the machine. A wrench or key that is left attached to a rotating part of the machine may result in personal injury.
• Never conduct any maintenance or make any other adjustments while the tractor engine is running. Always shut the tractor engine off, remove the ignition key, and keep the engine off before carrying out any of the following procedures. Consult your tractor’s operator manual for safe shutdown procedures to prevent accidental ignition.
• Never allow passengers to ride on the stump grinder.

MACHINE USE AND CARE

• Always be sure the operator is familiar with proper safety precautions and operation techniques before using machine.
• Do not force the machine. Machines do a better and safer job when used in the manner for which they are designed.
• Storing the machine. When the machine is not in use, store it in a dry, secure place or keep it well-covered and out of the reach of children. Inspect the machine for good working condition prior to storage and before each use.
• Maintain the machine. It is recommended that the general condition of the machine be examined before it is used. Keep your machine in good working order by adopting a program of conscientious repair and maintenance in accordance with the recommended procedures found in this manual. If any abnormal vibrations or noise occurs, turn the machine off immediately and have the problem corrected before further use.
• Cleaning. Use a pressure washer to clean the carbide teeth while taking care not to pressure-wash the bearings as this could introduce water into areas of the machine that may cause malfunction or damage.
• Use only accessories that are recommended by the manufacturer. Accessories that may be suitable for another machine may create a risk of injury when used on this machine.
• Always operate the machine with all safety devices and guards in place and in good working order. DO NOT modify or make changes to safety devices. DO NOT operate the machine if any safety devices or guards are missing or inoperative.
• Never leave the machine running unattended.
• Never use the machine to grind anything other than stumps or for any purpose other than grinding stumps as described in this manual.

SET-UP PROCEDURES

TRIMMING THE PTO SHAFT

The stump grinder is shipped with a slip clutch PTO shaft that can be fitted to most Category 1 tractors. The PTO shaft may need to be trimmed depending on your tractor and configuration. Follow the steps below to ensure the PTO shaft is correctly fitted to your tractor.

1.  Attach the stump grinder to the tractor’s 3-point hitch system. Do not install the PTO shaft.
2.  Raise the stump grinder so that the shaft on the tractor is in line with the shaft on the stump grinder.
3.  Measure the distance between the locking grooves on the splined shafts of the tractor and stump grinder (Dim A) as shown below:
4.  Verify the distance between the locking pins on the PTO shaft while in the compressed state (Dim B) as shown in the image below. It should measure 34” (862.5 mm).
5.  If Dim A is at least 1” (25 mm) longer than Dim B, the PTO shaft does not require trimming. It is recommended the shaft not be used if there is less than 6” (150 mm) of overlap between the two halves of the PTO shaft when the equipment is in the operating position.
6.  If Dim B is longer than Dim A, the PTO shaft will require trimming. Use this equation to calculate the correct amount to trim: (B – A) + 1 inch = C (Amount to Trim)
7.  Once C has been calculated, trim that amount from BOTH halves of the PTO shaft safety cover first, then trim the same amount from both shafts. This will ensure the safety cover on each end remains a few inches back from the ends of the shafts, otherwise PTO shaft reassembly could be difficult.
8.  After trimming both halves of the PTO shaft, use a file to remove any burrs or sharp edges and slide the halves back together, ensuring they telescope in-and-out freely. The PTO shaft is now ready to connect the stump grinder to the tractor for operation.

FLYWHEEL TOOTH TORQUING

Prior to each operation, ensure all 34 teeth are torqued to 160 ft•lb (215 N•m) using a torque wrench with a 24 mm socket.

OPERATION

PRE-START CHECKLIST

1.  Prior to operation, ensure all 34 teeth are torqued to 160 ft•lb [215 N•m] using a torque wrench with a 24 mm socket. Refer to the “FLYWHEEL TOOTH TORQUING” section of the operator’s manual.

2.  With the stump grinder attached to your tractor, take the appropriate measurements to trim the PTO shaft. Refer to the “TRIMMING THE PTO SHAFT” section of the operator’s manual for detailed instructions.
   Note: Failure to do so may result in severe damage to the implement and is not covered under warranty.

3.  The stump grinder has multiple bearings fitted with Zerk fittings for greasing. The PTO shaft is fitted with two (2) Zerk fittings, one on each yoke. The PTO shaft and all bearings com e pre-greased and do not require greasing on initial start up. Refer to the“M AINTENANCE” section of the operator’s manual for detailed maintenance instructions.

4.  Read the “STUMP GRINDING PROCEDURE” section of the operator’s manual before operating the stump grinder. It is important to grind stumps correctly to ensure optimal grinding performance and safe operation.

START UP

1.  Wear heavy-duty work gloves, ANSI-approved goggles behind a full-face shield, steel-toed work boots, and a dust mask
2.  Securely attach the stump grinder to the tractor’s 3-point hitch system and install the PTO shaft.
3. Prior to each daily use, check all 34 teeth and ensure they are not loose, missing, or damaged, and are torqued to the proper specification. Torque any undamaged loose teeth to 160 ft lb (215 NM) using a torque wrench with a 24 mm socket.
4.  Remove the stabilizer pin prior to operation as shown below:
5. Remove the leg locking pins, slide the legs up inside the tubes, and reinstall the locking pins to secure them in place.
6. Reverse over a tree stump and lower the stump grinder so it will remove 2” (50 mm) per pass. Always ensure the grinder is cutting properly and not jumping around erratically.
7.  Once the stump is at ground level, continue to take up to 2” (50 mm) deep passes until the stump and roots are 4-6” (100-150 mm) below grade. Keep a watch out for foreign objects below the soil like rocks or buried metal. These can damage or break the teeth resulting in poor grinding performance.
8.  During use, it is important to never let the stump grinder sway beyond an angle that will allow the PTO shaft to separate. Do not operate the stump grinder with less than 6” (150 mm) of overlap between the two halves of the PTO shaft. If the stump grinder begins to sway, it means either the tractor is advancing faster than the grinder can remove material or that too much material is being removed per pass. If this is observed, immediately stop moving forward and position the tractor and stump grinder in a manner so that it is in the vertical position. Take a slower pass and/or shallower cut if necessary.

STUMP GRINDING PROCEDURE
The flywheel spins in a clockwise manner (when facing the rear of the machine) with the effective cutting area in the lower-left quadrant as shown below:

Therefore, when grinding a tree stump, always start from the right side of the stump, moving incrementally to the left, pulling the grinder straight forward through the stump on each pass. When grinding softwoods like pine, spruce, or poplar, it may be permissible to remove upwards of 2” (50 mm) of material per pass. However, hardwoods like oak, ash, and birch can be much denser and the depth of grind may only be up to 1” (25 mm). If the chassis is swaying like described in the previous section, or the grinder is vibrating or bouncing, reduce the depth of cut or feed rate accordingly.

INCORRECT GRINDING PROCEDURES
It is critical that the stump grinder is never pulled through the centre of a stump or ground from left-to-right. This will induce severe vibration and cause the grinder to sway and bounce. It may also damage the machine and/or break teeth. Follow the directions on the previous page to ensure efficient and safe grinding.

PULLING THROUGH THE CENTRE

GRINDING LEFT-TO-RIGHT

CHAINSAW HOLDER
Use the chainsaw holder only during transport. Always remove the chainsaw from the holder prior to grinding stumps.

STORAGE

1.  Lower both support legs and reinsert the locking pins.
2.  Insert the stabilizer pin in either the left or right side of machine. It does not matter which side is selected.
3.  Lower the stump grinder onto a flat, level surface.
4.  Disconnect the PTO shaft.
5.  Remove the stump grinder from the tractor’s 3-point hitch system.

MAINTENANCE

• Proper routine maintenance is critical to operator safety, achieving proper stump grinding results, and prolonging the life of the machine.
• Before cleaning and/or any maintenance is performed on the stump grinder, always turn off the tractor engine and disconnect the PTO shaft.
• Inspect the machine before each use for loose nuts and worn cutting teeth and clean any debris that has built-up.
• After 2 hours of operation, check for loose nuts and worn cutting teeth. Tighten and replace as necessary.
• Grease the bearings and the pivot pins on the main housing as needed before each use. Do not overgrease the bearings as this can blow out the seals and cause premature bearing failure. Refer to section, GREASING, for information.

REPLACING TEETH

1.  Disconnect the PTO shaft from the tractor and set the stump grinder on a flat, level surface.
2.  Remove the M16 X 1.5 lock nut (fine thread) from the back of the tooth using a 24 mm wrench or socket.
3.  Remove the worn cutting tooth while noting its orientation so that the replacement tooth will be installed in the same manner.
4. Install the replacement tooth and lock nut using a torque wrench set to 160 ft lb (215 NM). Refer to section FLYWHEEL TOOTH TORQUING for more detail.

GREASING
The stump grinder has six (6) grease points: two (2) flywheel bearings, two (2) hinge pins, and two (2) on the PTO shaft. Check each grease point prior to use and add grease as needed.

PARTS LIST

Highlighted rows indicate components exclusive to European markets.

EXPLODED ASSEMBLIES

COMPLETE ASSEMBLY

Documents / Resources

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