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Special Application Adaptors Maintenance Procedures Installation & Training Acknowledgment: I, the undersigned, do hereby acknowledge that my Hunter Engineering Brake Lathe has been installed and is operational. I also acknowledge that the above technicians have been trained to my satisfaction in those areas of safety and operation as indicated above.
The owner of the lathe is solely responsible for arranging technical training. Only qualified Hunter trained techni- cians should operate the lathe. Maintaining records of personnel trained is solely the responsibility of the owner or management.
Verify that the electrical supply circuit and the receptacle Use only Hunter recommended accessories. The use of are properly grounded. non-recommended accessories may cause risk of injury to persons and may not produce satisfactory finish Do not use lathe in a dangerous environment.
Specific Safety Precautions/ aged should be carefully checked to determine that it would operate properly and perform its intended function. Power Source A guard or other part that is damaged should be properly repaired or replaced. Check for alignment of moving Specifications for Extension Cords parts, binding of moving parts, breakage of parts, mount- ing, and any other conditions that may affect its opera-...
27 inches Long x 20 inches will require conversion to 220 V and the plug, 42-36-2, to Wide x 15 inches High (686 mm be installed. Refer to Form 7299-T, AutoComp Elite® x 508 mm x 381 mm) Installation Instructions, for information on converting to Net Weight Approximately 90 lbs.
Major Operating Controls The feed hand wheel moves the cutting inserts along the rotor surface. Using the feed positioning knob on the hand wheel, rotate the feed hand wheel clockwise to Electrical Controls move the cutting inserts toward the inner diameter (cen- ter) of the rotor, or counterclockwise to move them toward the outer diameter of the rotor.
Trolley Height Adjustment Each mark represents 0.004 depth of cut on the adjust- ment handle. The trolley lift strut can be adjusted to accommodate low and high operational ranges. The low range of travel is 20.25 in. to 36.25 in. (514.35 mm, 920.75 mm), as mea- sured from the lathe output shaft centerline to the floor.
Lathe Tablet Operation Basic Operation Power on / off Users power the lathe tablet on and off by pressing the small button on the top edge, with the tablet oriented so the ASUS logo is on the right hand side. Navigating Figure 11 Export Screen shot Press the screen and swipe to navigate or scroll.
Operation Infor- Workpiece (Rotor) Preparation mation Clean the workpiece thoroughly with non-petroleum based, evaporating cleansers or warm soapy water. Remove all rust and corrosion from the mounting sur- faces of the workpiece and vehicle hub by using emery paper, Scotch-Brite abrasive, or an electric hand drill equipped with a wire brush attachment.
Twin Cutter Insert Holder Instal- Install the bits in the bit holders using the small Torx wrench included. lation The twin cutter insert holders can be installed two differ- ent ways as shown by the pictures below. Recommended Insert Holder Installation - Standard Rotation The picture below shows the recommended installation for standard rotation.
Disc Resurfacing on the Vehicle Alternative Insert Holder Installation - Reverse Rotation The picture below shows the optional installation method for reverse rotation allowing for a maximum rotor pad sur- face width of 3.00 in. (76.2 mm). This setup should only be used on rotors that are thicker than 1.625 in.
14. After the desired level of cut and finish has been 4. Flip the insert holders over. achieved, remove the lathe and adaptors from the vehicle. Clean lathe of debris. 15. Clean rotor per OEM recommended procedure and assemble brake system. 16.
less after resurfacing, the rotor should be discarded 2. Attach the proper adaptor to the rotor face by using and replaced. the vehicle’s lug nuts. Torque the lug nuts to 40 ft-lbs (maximum). The minimum refinish thickness specifications may be found in software or the specification cast into the rotor.
2. Speed can be adjusted by either turning the Speed image below). Retighten the shaft lock bolt after posi- knob on the console, or using the slider on the tablet. tioning. The tablet also shows the progress of the compensa- tion.
ACT (Anti-Chatter Technology) Chatter Con- inserts are fully contacting the rotor surface and cut a full circle around the rotor surface. Tighten the trol inboard lock. Each hash mark represents .004 in. (0.1016 mm). Press the ACT button to enable the chatter control. This process varies the RPMs of the brake lathe to eliminate 3.
Optional Extended Cutting Head plate in reference to the angled corner and the exist- ing rivet. Kit 20-3092-1 or 20-3345-1 Installation 1. Install locks, but do not tighten. Open cutters as far as possible and clean with parts cleaner/solvent to remove the protective coating applied for shipping.
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Digical Operation The Z-axis depth of the cutting head is adjusted by loos- ening both locks and manually sliding the entire cutting assembly. Calibration 1.Select Calibrate Digi-Cal from Menu. 2.Separate the tool holders so the gage block can easily pass between the cutting bits. Then lock one tool holder in place.
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Figure 43 8. Determine depth of cut: the current rotor thick- ness is displayed as “thickness”. These measure- ments will update as the adjustment knob runs the bits in or out. Remaining thickness is displayed right of thickness. Green indicates an acceptable cut, yel- low;...
Maintenance Equipment Maintenance Keep the brake lathe and the working area clean. Do not use compressed air to remove debris from the lathe, for- eign material may be propelled into the air and strike you or bystanders. Clean tool holders and cutting inserts daily. Replace cutting inserts when worn or damaged.
Replacing Cutting Inserts Cleaning and Lubrication Use the BitMinder feature to keep track of bit Cleaning the Machine rotation rather than rotating only after a poor cut. BitMinder also has a brief video Keep the lathe clean at all times. Pay particular attention illustrating how to rotate bits.
All warranty claims must be made to your local Hunter Service representation. Labor warranties can vary and addi- tional policies and restrictions may apply.
Cut too aggressive Reduce depth of cut. Possible defective speed control If error is displayed while adjusting speed; call Hunter service rep for service. Displays “or” Too much runout Indicates the unit is out of range more than .25°. Check setup and start again...
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HUNTER TRAINING Hunter operates the most advanced, up-to-date Training Center in the industry today. The courses have been designed to meet the needs of new and experienced technicians who want to increase their mechanical and diagnostic capabilities. The low student-teacher ratio (average 7 to 1) and the emphasis on “hands-on” training (70% time in shop) create an excellent learning environment.
DIGI-CAL OPERATIONS Calibration 1.Select Calibrate Digi-Cal from Menu. 2.Separate the tool holders so the gage block can easily pass between the cutting bits. Then lock one tool holder in place. Place the calibration block between the cutting bits. Move the cutting bits together until they both barely touch the calibration block.
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6. Select additional vehicle identification information if required. 7. Digi-cal provides specs, including adaptor, min rotor thickness and discard thickness, lug nut size, and torque. Figure 3: 8. Determine depth of cut: the current rotor thickness is displayed as “thickness”. These mea- surements will update as the adjustment knob runs the bits in or out.
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In case of any warranty claim it will be necessary to contact your local authorized Hunter Service Representative. To have an item considered for warranty it must be returned to Hunter Engineering Company for inspection and evaluation.
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