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Functional operating instructions for the BBA20 Belt Grinder
The BBA20 was fully tested and verified to comply with requirements prior to shipping from the factory. No adjustments
should be necessary. You should perform the following steps:
1. Machine securely bolted to its table, pedestal, and/or floor point connect the AC power to its source.
2. Verify the machine is in good working order. Check for unsafe conditions or damaged parts and repair or replace
prior to operation. Tag out machine if any issues cannot be resolved.
3. Clean work area and machine. Start with a clean area around the machine.
4. Check wheels for damage. Replace if needed.
5. Adjust the tool rest or articulating arm (if equipped) by loosing the lever and adjusting to centerline of wheel for
general grinding operation.
6. Check the nut that secures the contact wheel (P/N 2220) to its mount. Insure this nut is tightened to 10 to 15 foot
pounds of torque.
7. Ensure the wheels are firmly tightened to the spindle. A wheel
running in reverse rotation can unscrew from the spindle, creating
a serious personnel safety hazard. Ensure that the BBA20 spindle
operates CCW when viewed from the right side of the machine.
8. Engage the motor. The wheel should rotate smoothly in a CCW
direction with the front face of the finishing wheel moving to-
ward the floor. If either of these conditions are not met turn the
machine OFF immediately. For more information on the variable
speed controller see page 8 of this manual.
9. If the BBA20 runs in reverse direction you must correct this by
changing the main drive motor rotation direction.
FIRST DIS-
CONNECT THE MACHINE FROM ITS AC POWER
SOURCE. A COMPETENT ELECTRICIAN SHOULD PER-
FORM ALL ELECTRICAL WORK.
Your new BBA20 may use a variable frequency drive to achieve variable
speed operation. The VFD will convert single phase 120-volt power and op-
erate a three phase 240 volt motor. Burr King uses multiple brands of con-
trollers based on machine requirements. This manual will focus on the KB
brand of controllers. For more information on the variable speed controller
see page 8 of this manual.
The VFD and motor operation may draw more than 15 amps on 120 volts.
Your new machine came from the factory has a 20 AMP 120-volt plug.
10. Belt tensioning is achieved with the single quick change lever. This
cam over center lever allows for quick tooless belt changes and spring ten-
sioning shall provide years of trouble free service will maintaining a constant
belt tension. To change an abrasive belt simply make sure the machine is
powered off, the wheels are stationary and then flip the lever to compress the
spring tension. It’s just as easy to install the belt. Place the belt over the
wheels and release the lever to engage the spring belt tension.
11. Belt tracking is quick and easy also. Simply move the lever that at-
taches to the rear idler either towards you or away from you to move the belt
track left or right. The lever is clamped to the wheel support and can be re-
adjusted by loosening the cap head allen screw.
Reposition to your desired
location and tighten back up.
Wear proper clothing and personal
protection equipment we operating
Learn more about the VFD on page 8 of this manual