OPERATION MANUAL RTI BRC40 ON-THE-CAR BRAKE LATHE RTI TECHNOLOGIES, INC.
BRAKE LATHE BRC40 CONGRATULATIONS... You have purchased one of the finest lathes for on-thecar machining of brake rotors available at any price. GREAT RESULTS WITH THE BRC40 ARE AHEAD... O New, smaller size gives easy access to rear wheel rotors. O Light weight makes mounting easy. O Fast to set up and simple to operate. O Professional, high quality on-the-car brake rotor turning with "total alignment" every time. O Uses two reference points - hub axis and caliper mount geometry.
CONTENTS Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3 Lathe & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4 Drive Stand & Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6 Main Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8 Mounting the Lathe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10 Attaching the Drive Motor . . . . . . . . . . . . . . . . . . . .
WARRANTY Fill out and return the Warranty Card within 90 days to activate warranty and free lifetime technical support. WARRANTY... The BRC40 is warranted to be free of defects in workmanship and materials for a period of one year from date of purchase by original purchaser. If the product fails within this period, it will be repaired or replaced at the manufacturer's option, provided (1) factory authorization has been issued and (2) the product is submitted with proof of purchase.
LATHE & ACCESSORIES BRC40 RTI Part No. Description Qty 080-80000-71 Bracket Twin Cylinder (80mm) 2 080-80000-04 Band Silencer 1 080-80000-05 Wrench Hex Key (6mm) 1 080-80000-06 Wrench Hex Key (8mm) 1 080-80000-07 Spacer Mounting 6 080-80000-08 Bar Threaded 2 080-80000-09 Hook “S” Shaped 2 Adapter Hollow (48mm lg.) 2 Bolt 8mm x 1.25 (70mm lg.) 2 Bolt 10mm x 1.50 (70mm lg.) 2 080-80001-22 Bolt 10mm x 1.50 (90mm lg.) 2 080-80001-23 Bolt 10mm x 1.50 (80mm lg.
LATHE & ACCESSORIES BRC40 RTI TECHNOLOGIES, INC.
DRIVE STAND & MOTOR BRC40 RTI Part No.
DRIVE STAND & MOTOR BRC40 RTI TECHNOLOGIES, INC.
MAIN FEATURES BRC40 Page 8 RTI TECHNOLOGIES, INC.
CAUTION Check for any end-play in the wheel bearing before mounting the BRC40 Brake Lathe. A loose wheel bearing may cause a poor surface finish. If bearing play is adjustable, tighten nuts slightly before machining, and then readjust to factory specifications afterward. If there is play in a non-adjustable bearing, it should be replaced before machining the rotor. Most non-adjustable bearings are doublerow ball bearings that require pre-load.
MOUNTING THE LATHE 1. Place automobile in NEUTRAL with parking brake OFF and raise on lift. Start on passenger side and remove wheel nuts and wheel. 2. Place Spacers on wheel studs as shown in Figure 1. Replace and tighten nuts to manufacturer’s specification using torque wrench. 3. Remove the brake caliper and hang it out of the way using an S-Hook. 4. Remove all rust and dirt from the brake caliper bolt area. Failure to clean these surfaces will result in unsatisfactory machining. 5.
MOUNTING THE LATHE 6. Place Twin Cylinder Mounting Brackets on each of the Adapters mounted in the preceding step. Do not tighten the Allen Socket Bolts in the Mounting Brackets. 7. Hang the Lathe on the lower Twin Cylinder Mounting Bracket as shown in Figure 3. Figure 4 Mounting the Lathe Figure 3 Hang the Lathe 8. Swing the Lathe upwards and slide the top Twin Cylinder Mounting Bracket onto the Lathe mounting bracket. See Figure 4. 9.
ATTACHING THE DRIVE MOTOR 1. Tighten Wheel Nuts on all but two studs. Attach the Wheel Drive Brackets, with Spacers, to the two vacant wheel studs as shown in Figure 6. Leave the two wheel nuts slightly loose. 2. Slide the sleeve on the connecting shaft of the Drive Motor away from the universal coupling so the shaft is free to articulate. 3. Position the Drive Motor Stand and connect the Wheel Drive Brackets to the end of the Drive Motor Shaft. 4.
CONTROL DEVICES FEED DIRECTION SWITCH Direction of travel of the cutting tools is controlled by a 3-position switch on the Lathe Control Panel. Pressing the top activates INFEED (towards the center of the rotor) and pressing the bottom activates OUTFEED (away from the center of the rotor). Between these positions is the OFF position. INFEED STOP This switch (See Item J on Page 8) stops travel of the cutting tools when moving towards the center of the rotor during automatic operation.
TURNING A ROTOR 1) Mount the Lathe and attach the Drive Motor per the instructions in the preceding section. The Silencer Band can be mounted around the outer edge of the rotor to reduce noise during machining if desired. This must be done before mounting the Lathe. 2) Set the Feed Direction Switch on the Lathe Control to OFF (middle position). 3) Set the Drive Motor Switch on the Drive Motor Control to OFF (Marked “0").
10) Use the Cut Depth Micrometer to move both cutting tool tips towards the rotor until they just touch the rotor surface. 11) Turn the hand wheel to manually feed the cutting tools outward toward the edge of the rotor to remove any rust build-up on the outer edge. 12) Manually feed the cutting tools inward towards the center of the rotor to a point slightly beyond the contact surface of the brake pads. Use care as the depth of cut may vary due to runout in the surface of the rotor.
TURNING A ROTOR 18) When the cutting tools have moved outward beyond the edge of the rotor, press the bottom (OUTFEED) of the Feed Direction Switch on the lathe to place the switch in the OFF position. 19) Momentarily turn off the Drive Motor and check the surface of the rotor. It should have a rough cut surface across the entire face on both sides. If not, make another rough cut, otherwise proceed to the next step for a finish cut.
SLIDEWAY ADJUSTMENT Figure 15 Slideway Adjustment Periodically check the “snugness” of the Tool Holders in the Slideways. When fully extended from the Lathe, there should be no movement of the Tool Holders when pulled up or pushed down. Unsatisfactory surface finish on rotors is often an indication that the Slideways need adjustment. Carefully study Figure 15 to understand the dynamics of adjusting the tension of the Slideways on the Tool Holders.
SUMMARY The BRC40 will provide many years of dependable brake rotor machining with proper care and use. This manual describes basic operating procedures for quick and easy use of the BRC40. As with any fine piece of machinery, experienced operators will quickly discover new and more versatile methods of operation. The BRC40 can be set up in various configurations for optimum access to control devices and tool adjustments. No one way is necessarily the best for all vehicles.
