Pro-Cut B17 User manual

TECHNICAL MANUAL

P ·800.543.6618
F ·603.298.8404
[email protected]
www.procutusa.com
TECHNICAL MANUAL

PG / 6800.543.6618
CONTENTS
*NOTE: When service or replacement parts are required, please contact your local
Pro-Cut Representative through either the SuperTech app or through our website:
www.procutusa.com
Limited Warranty
Lathe Overview / Components
Brake Lathe Specifications
List of Standard Accessories
Acceptance from Carrier
Safety Information
Assembly of Lathe
Operations Procedures
Multi-Speed Settings
Set Up for Rotors or Drum Cutting
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10/11
12
13
14
14
19
20
20
21
Machining Hub-less and Hubbed Drums
Detailed Instructions
Mounting Hubbed Drums or Rotors
Command Module - Machining Mode
Command Module - Set-Up Mode
Command Module - Statistics Mode
Advanced Tips
Diagrams
Maintenance Schedule
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27
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OUR MISSION
Pro-Cut International is dedicated to providing our customers with the most advanced, precise,
and profitable tools for brake repair. We have worked with, learned from and solved problems
for people at all levels of the brake repair business - from the largest auto manufacturers and
national service chains to one-bay, one-man operations. It is a business our entire staff lives,
eats, and breathes. We welcome you to our table and look forward to working with you to im-
prove your brake service business.

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You have just purchased what we feel is the finest bench brake lathe in the world. Your Pro-Cut B17 is a high
quality, precision engineered product designed to give you years of trouble free service. To familiarize yourself with
all its features, please take the time to read this owner’s manual carefully and store this manual in a safe place for
future reference.
Our job is not done until you feel your technician team was trained properly and received all the information needed
to operate the B17 efficiently, accurately, and above all, SAFELY.
Your warranty will begin once you sign off that you are happy with the training.
For Records and Information:
CONGRATULATIONS!
DATE TRAINED
SERIAL No.
PRO-CUT REP NAME
REP. CONTACT No.
FOUND ON BACK OF LATHE

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What Your Warranty Does Not Cover
This warranty does not apply to damage due directly to misuse, abuse, negligence or lack of maintenance.
Limited Warranty
This warranty extends to the original owner of the equipment. Pro-Cut International warranties this equip-
ment against defects in materials or workmanship as follows.
Labor
For the period of two (2) years from the original date of purchase, if we determine that the equipment
is defective subject to the limitations of this warranty, we will replace it at no charge for labor. Pro-Cut
International warrants any such work done against defects in materials or workmanship for the remaining
portion of the original warranty period.
Parts
For the period of two (2) years from the original date of purchase, we will supply, at no charge, new or
rebuilt replacement parts in exchange for parts we determine are defective subject to the limitations of
this warranty. Pro-Cut International warranties any such replacement parts against defects in materials or
workmanship for the remaining portion of the original warranty period.

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Lathe Overview
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1. Emergency Stop
2. Spindle Start/Stop
3. Spindle Speed Select Knob
4. Feed Start/Stop
5. Feed Quality Select Knob
6. Disc/Drum Cutting Plate Lock Lever
7. Disc Cutting Head
8. Drum Boring Bar
9. Drum Insert Holder
10. Disc Feed & Drum Depth Crank
11. Drum Feed & Disc Axial Position Crank
12. Disc Feed Motor
COMPONENTS
13. Drum Feed Motor
14. 1” Arbor
15. LED Task Lamp
16. Spindle Ring Lamp
17. Tool Cabinet Base
18. Motor
19. Draw Bar Cover
20. Way Covers
21. Disc Insert holder
22. Drum feed lock-out
23. Disc feed lock-out

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SPECIFICATIONS
· 90-264VAC 50/60Hz 1ph Input
· Rotor Capacity 4-24” [101.6-609.6mm]
· Maximum width of surface 3.5” [89mm]
· Maximum thickness 2.25” [57mm]
· Drum Capacity 6-28” [152-711mm]
· Friction surface capacity 6”
· Maximum Weight on 1” [25.4mm] Arbor: 150 lbs. [68kg]
· Maximum Weight on 1 7/8” Arbor: 300 lbs. [136kg]
· Spindle Speed RPM 100-140-180
· Feeds per Spindle Revolution: (Infinitely Variable)
· Disc 0.0016”-0.0039” [0.04-0.10mm] / rev.
· Drum 0.0016”-0.0039” [0.04-0.10mm] / rev.
· Motor: 0.54 HP 400W
· Lathe Weight: 492 lbs. [223 kg]
· Lathe Shipping Weight: 557 lbs. [252 kg]
· Stand Net Weight: 308 lbs. [140 kg]
· Stand Shipping Weight: 391 lbs. [178 kg]

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1 Draw Bar with Hex Nut
2 Large Bell Clamp
2 Small Bell Clamp
4 Centering Cones
3 Silencers
6 Double Taper Radius Adapters
1 Standard 1” Arbor
1 Arbor Nut
1 1” Spacer
1 Set of Alignment Washers
1 Spring
1 Match Mark Crayon
1 Chip brush
1 T-8 Tip Screw Wrench
1 3mm Gib Screw Wrench
1 8/10mm Gib Nut Wrench
1 Safety Glasses
1 Way Oil w/Brush
1 Performance Plus Inserts
1 35mm Arbor Nut Wrench
*IMAGES NOT TO SCALE
STANDARD ACCESSORIES INCLUDED WITH THE B17 BENCH LATHE

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Carefully inspect all items received in this shipment. If there is damage or evidence of mishandling in transit, determine
the extent of damage and notify the transit company as well as Pro-Cut or your local Pro-Cut rep immediately. Although we
are not responsible for damage incurred in transit, we will assist in the preparation and filing of claims.
SAFETY INFORMATION
This manual has been prepared for the operator and those responsible for the maintenance of the brake lathe. Its purpose,
aside from proper maintenance and operations, is to promote safety through the use of accepted practice. READ AND
UNDERSTAND THE SAFETY AND OPERATING INSTRUCTIONS COMPLETELY BEFORE OPERATING THE MACHINE.
In order to obtain maximum life expectancy and efficiency from your brake lathe; follow the operating instructions and
maintenance manual carefully. The specifications put forth in this manual were in effect at the time of publication. How-
ever, owing to Pro-Cut’s policy of continuous improvement, changes to the specifications may be made at any time without
obligation on the part of Pro-Cut International, LLC.
ACCEPTANCE FROM TRANSPORTATION CARRIER

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Read, understand and follow the safety and operating instructions found in this manual. Know the limitation and hazards
associated with operating the machine.
SAFETY INSTRUCTIONS
1.
SPECIAL PRECAUTIONS: The Pro-Cut B17 brake lathe was designed to machine the portions of the brake drum & disc
brake rotor that come in contact with the friction material. When used according to the instructions herein, this lathe will
perform satisfactorily within the work piece size range designed for this model. During the machining operation, the work
piece rotates. Be especially cautious of rotating spokes and mounted accessories. During machining, material removal may
cause a sharp edge to be generated, where a chamfer or radius previously existed. Use care in handling machined parts.
SECURING THE MACHINE: The model B17 weighs approximately 470 pounds and must be bolted to either the Pro-Cut Heavy
duty bench 50-4100, or a bench capable of supporting the machine, its accessories and work piece.
GROUNDING THE MACHINE: In the event of a malfunction or breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock. The lathe is equipped with an electric cord having an equipment-
grounding conductor and a grounding plug. The plug must be plugged into a match outlet that is properly installed and
grounded in accordance with all local codes and ordinances. Do not modify the plug provided. If the plug will not fit the
outlet, have the proper outlet installed by a qualified electrician. If repair or replacement of the electric cord or plug is nec-
essary, do not connect the to a live outlet until repairs are performed. Check with a qualified electrician or service personal
if the grounding instructions are not completely understood, or if in doubt as to whether the lathe is properly grounded.
EXPLOSION RISK: This machine generates internal sparks. Do not use at less than 18” [0.46m] above grade level, and never
use below grade level. Work area should be well ventilated and free of explosive funes.
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USE PROPER EXTENSION CORD: Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole recep-
tacles that accept the lathe’s plug. Repair or replace damaged or worn cord immediately. Make sure your extension
cord is in good condition. When using an extension cord, be sure to use one that is 15’ or less and 14ga or heavier (i.e.
12ga). An undersized cord will cause a drop in line voltage resulting in a loss of power and overheating.
EYE SAFETY: Wear an approved safety face shield, goggles, or safety glasses. (Ordinary eyeglasses are not safety glasses
and do not provide the degree of protection necessary.)
RESPIRATORY SAFETY: If the operation or area is dusty a face or dust mask should be used.
PERSONAL PROTECTION: Before operating the machine, remove tie, rings,watches and other jewelry, and roll up sleeves
above the elbow. Remove all outer loose clothing and confine long hair. Protective type footwear must be worn. Hearing
protectors must be used where noise exceeds the level of exposure allowed in Section 1910.95 of the OSHA Regula-
tions. DO NOT WEAR GLOVES.
DO NOT USE LATHE IN DANGEROUS ENVIRONMENT: Don’t use the lathe in damp or wet locations, or expose the lathe to
rain. Keep the work area well lighted.
WORK AREA: Keep the floor around the machine clean and free of foreign materials. Pro-Cut recommends the use of
anti-skid floor strips where the operator normally stands, and that each machine has its own work area marked off. Make
certain that the work area is well lighted and ventilated. Provide for adequate workspace around the machine. The work
area should not be readily accessible to anyone except the operator.
SAFETY INSTRUCTIONS (continued)
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DO NOT OVERREACH: Maintain a balanced stance and keep your body under control at all times.
HAND SAFETY: Keep hands away from moving parts when the machine is under power. Never clear chips or debris when
the machine is under power and never use your hands to clear the chips. Never use compressed air to clean machine;
use only a soft bristle brush or vacuum cleaner.
MACHINING PREPARATION: Tighten all appropriate locks before operating the lathe. Be sure work piece is secured.
Remove adjusting keys and wrenches. Be sure to check to see that all adjusting wrenches are removed from the lathe
before turning the machine on.
CHECK DAMAGED PARTS: Before further use of the lathe, a guard or other part that is damaged should be carefully
checked to determine if it will operate properly and perform its intended function. Check for alignment of moving parts,
binding of moving parts, breakage of parts, mounting, & any other conditions that may affect the lathe’s operation. A
guard or other part that is damaged should be properly repaired or replaced.
MAINTAIN TOOLS WITH CARE: Keep tools sharp and clean for best and safest performance. Follow instructions for lubri-
cating and changing accessories.
NEVER STAND ON LATHE: Serious injury could occur if the lathe is tipped or if the cutting tool is unintentionally con-
tacted.
SAFETY INSTRUCTIONS (continued)
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MACHINE CAPACITY: Do not attempt to use the machine for other than passenger car and light truck drums, discs, or for
operations for which the machine was not intended.
CARELESS ACTS: Give the work you are doing your undivided attention!
Disconnect Electrical Power before performing any service, maintenance, or changing of accessories, adapters, or work
pieces on machine.
JOB COMPLETION: If the operator leaves the machine area for any reason,the machine should be turned off, and the
spindle brought to a complete stop before the operator departs. In addition if the operation is complete, the operator
should clean the machine and work area. NEVER CLEAN THE MACHINE WITH THE POWER ON.
REPLACEMENT PARTS: Use only Pro-Cut replacement parts and accessories, risk of injury may result in accessories other
than those recommended are used.
MISUSE: Do not use the machine for other than its intended use. If used for other purposes, Pro-Cut International, LLC,
disclaims any expressed or implied warranty, and holds itself harmless for any injury or loss that may result.
SAFETY INSTRUCTIONS
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SETTING UP BRAKE LATHE FOR FIRST USE
All machined surfaces are covered with a protective coating before packaging and they must be thoroughly cleaned.
The spindle, arbor taper and mounting surface on top of ways must be cleaned and wiped dry. Install the draw bar in
the arbor. Insert the draw bar through the spindle. Install the nut on the rear of the draw bar, and tighten. Make sure
all inserts, bolts, and set screws are tight.
· Machine must be securely fastened to work bench surface before operating.
· Five mounting holes on the base are provided for this purpose.
LUBRICATION
Lubricate ways by oiling felt wipers on the end of cross slide every week with Pro-Cut 50-376 way oil or equivalent.
For other iron surfaces we recommend high quality rust prevention coating such as CRC brand 3-36 multi-purpose
lubricant and corrosion inhibitor.
ASSEMBLY OF BRAKE LATHE

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The B17 Multi-Speed Lathe has three spindle speeds and variable cross feeds (0.0016-0.0039” [0.04-0.1mm] per
revolution) to accommodate a wide range of machining tasks.
Choose spindle speed based on the size of the work piece, slower for larger diameter parts.
The feed adjustment has 11 quality settings, from the finest finish (1) to the coarsest finish (11). Finer finishes use
a lower feed rate, and so take longer. The coarsest finish setting, when used with Pro-Cut inserts is designed to give a
finish at or about 100 micro-inch / 2.54 micron Ra, the upper roughness limit allowed for many vehicles. The fine set-
ting can achieve surface finishes as low as 45 micro-inch / 1.14 micron Ra. Insert edge quality and rotor condition and
material will affect these numbers.
No guarantee can be made for inserts not purchased from Pro-Cut, as insert corner radius, relief angle, material com-
position and edge preparation can have a strong effect on cutting quality, insert lift, and tendency of the work piece to
vibrate. Always use Genuine Pro-Cut 50-778 inserts for best results.
Unlike earlier, more primitive lathes, you do not have to guess what speed and feed combination to use, just choose your
RPM based on size and finish number based on desired surface roughness.
The maximum recommended depth of cut is 0.012” / 0.3mm per insert.
B17 MULTI-SPEED BRAKE LATHE OPERATION PROCEDURES OPERATION