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4.

 

Using the feed slide handwheel, locate the tool bit in position 1. 

5.

 

Using  the  cross  slide  handwheel,  slowly  feed  the  tool  bit  in  until  it  just  contacts  the  shoe 
wear area. 

6.

 

With the drum turning, slowly rotate the feed screw handwheel counter-clockwise until the 
lip is removed and the tool bit is past the outside edge. 

7.

 

Examine  the  scratch  cut  making  sure  it  is  uniform  around  the  entire  circumference  of  the 
rotor. If the scratch cut is uniform, you can do the next step. If the scratch cut is not uniform, 
it means that the drum does not install correctly. You should turn the power off, remove the 
rotor  from  the  arbor,  check  the  mounting  adapters  and  arbor  for  nicks,  burrs,  or  chips, 
remount the rotor, and repeat the process. 

8.

 

With the drum turning, using the cross slide handwheel, feed in the tool bit 0.002” to 0.004”. 

9.

 

Position the rotor/drum switch on  drum; tighten the knob on the portrait slide handwheel, 
then start turning. Turn off Disc/Drum switch and spindle motor. 

NOTE:

 Refer to Speed and Feed RPM chart (Figure 15) to find spindle speed and feed speed.   

“Some experimentation may be required for optimum surface finish.” 

10.

 

Check the surface for total clean up. 

11.

 

If the surface is not ideal, relocate the tool bit and feed in a little depth and repeat, until we 
can get an ideal surface. 

CARE AND MAINTENANCE 

Some basic maintenance will assure that it will continue to operate in a satisfactory manner. 
1.

 

Using a shop cloth, remove all of the chips and dust from on and above the lathe do not use 
air to clean off the machine. 

2.

 

Apply  a  thin  layer  of  light  weight  oil to  the  arbor,  taper  cones  and  double  radius  adapters 
after each use. 

3.

 

A light coat of oil should be applied to spindle every month. 

4.

 

Slide way is factory adjusted and held in place with set screws. No adjustment is needed in a 
short period. 

5.

 

A light coat of oil should be applied to dovetails every day. 

6.

 

The screw should be lubricated often. 

HELPFUL HINTS 

1.

 

We recommend that you use a scrap disc or drum and practice before  beginning an actual 
job. This will avoid any undue pressure or failure while learning. 

2.

 

Always clean the surfaces that will be contacting the taper cones, double radius adapter(s) or 
bell clamp(s). 

3.

 

If  a  disc  or  drum  cannot  be  installed  correctly  (after  having  been  cleaned  and  installed 
properly), it may be damaged or bent. 

4.

 

If in doubt, DON’T DO IT! 

CAUTION: USE REQUIRED OUR CARBIDE TIPS ONLY 

TRIANGLE CUTTING TIP TPGX110308 
 
 
 
 
 

Summary of Contents for C9372

Page 1: ...1 20 C9372 BRAKE LATHE MANUAL The User s Manual is always in place and available for the operator READ THE SAFETY AND OPERATING INSTRUCTIONS THOROUGHLY BEFORE OPERATING THE MACHINE ...

Page 2: ...ctions found in this manual Know the limitations and hazards associated with operating the machine 2 Eye Safety ear an approved safety face shield goggles or safety glasses to protect eyes when operating the machine 3 Grounding the Machine Machines equipped with three prong grounding plugs are so equipped for your protection against shock hazards and should be plugged directly into a properly grou...

Page 3: ...sing the spindle or any hand wheel CAUTION This machine MUST be securely attached to the work surface before attempting to set up or operate WARNING DO NOT use lacquer thinner CAUTION DO NOT attempt to test set up or operate this machine until you are completely familiar with the functions of all the controls and switches WARNING NEVER loosen or attempt to remove arbor with disc or drum mounted WA...

Page 4: ...witch Figure 2 This switch is a two position limit switch which serves as an automatic shut off of the Disc feed motor In order for power to be supplied to the Disc feed motor the limit plate must be away from the switch Fig 2 Drum Stop Switch Figure 3 This switch is a micro switch which serves as an automatic shut off of the Drum feed motor In order for power to be supplied to the Drum feed motor...

Page 5: ...lamp handle Note Final location of the disc attachment can be made after the disc rotor to be machined has been installed DRUM TRUING ATTACHMENT The drum truing attachment can be mounted in any one of three locations depending on the diameter of the drum 1 Select the appropriate threaded hole in the feed slide plate and screw one end of the clamp stud into it 2 Place the tool bar tube over the cla...

Page 6: ...acers supplied with the brake lathe so you can tighten the nut securely After tightening you are now ready to resurface the rotor or drum SPECIAL NOTE The chuck will work on any brake lathe using a 1 arbor REMOVING CHUCK JAWS Fig 9 The chuck has two jaws It will be necessary to remove the chuck jaws for cleaning or when changing the other jaws referring to figure 9 The jaws are numbered 1 2 3 and ...

Page 7: ...p stud further out on the bed b Loosen the clamp handle and slide the disc truing attachment right or left so that the disc is centered between the tool bits Tighten the clamp handle being sure the attachment is square to the tool bed Fig 12 c Check each of the tool bits to be sure they are still in serviceable condition If not rotate to next point of the tool bit d Tighten the screw in the slide ...

Page 8: ...be removed relocate the tool bits at the inner surface edge and feed in a little depth and repeat until you can get an ideal surface NOTE On not uniformity worn surface discs the side more worn should be machined first Then the two sides should be machined simultaneity So that minimizes the amount of stock removal necessary to clean up DRUM TRUING 1 Install the dampening band around the outside of...

Page 9: ...imum surface finish 10 Check the surface for total clean up 11 If the surface is not ideal relocate the tool bit and feed in a little depth and repeat until we can get an ideal surface CARE AND MAINTENANCE Some basic maintenance will assure that it will continue to operate in a satisfactory manner 1 Using a shop cloth remove all of the chips and dust from on and above the lathe do not use air to c...

Page 10: ...ch 1 9 Terminal Hook 1 10 Screw Sleeve 1 11 Flat Washer GB97 12 1 12 Tighten Screw 1 13 Eye Bolt 1 14 Arbor 1 15 Connector 1 16 Flat Washer GB97 06 9 17 Pan Head Cross Recess Screw GB818 M06x08 9 18 Flat Washer GB97 08 3 19 Pan Head Cross Recess Screw GB818 M08x10 3 20 Work Lamp 1 21 Sphere Washer 1 22 Nut 1 23 Slide Gib Plate Assembly 1 24 Hex Socket Button Head Screw GB70 2 M05x12 2 ...

Page 11: ...ed Roller Bearing GB297 33210 1 3 Base Casting 1 4 Spindle Housing Assembly 1 5 Spindle 1 6 Rotary Shaft Oil Seal GB9877 1 B70x95x12 2 7 Shaft Sleeve 1 8 Gear Belt Pulley 1 9 Woodruff Key GB1099 8x11x28 1 10 Round Nut 1 11 Copper Bushing 16x22x20 1 12 Transmission Bearing 1 13 Lock Bar Assembly 1 ...

Page 12: ... Washer GB97 08 8 33 Spring Washer GB93 08 4 34 Hex Nut GB6170 M08 4 35 Hex Bolt GB5782 M08x35 4 36 Bracket 1 37 Spring Washer GB93 10 1 38 Hex Bolt GB5782 M10x25 1 39 Hex Socket Set Screw with Flat Point GB77 M08x12 1 40 Name Plate 1 41 Rivet for Name Plate GB827 02x05 4 42 Tube Plug Φ38 1 43 Hex Socket Set Screw with Cone Point GB78 M08x12 1 44 Hex Socket Set Screw with Flat Point GB77 M06x05 1 ...

Page 13: ...13 20 Cross Feed Feed Slide Assembly ...

Page 14: ...2 M10 1 18 Flat Washer GB97 10 1 19 Hex Socket Set Screw with Cone Point GB78 M06x10 1 20 Flat Washer GB97 06 1 21 Knob T Bar 1 22 Shield 1 23 Retainer Shield 1 24 Hex Socket Set Screw with Flat Point GB77 M05x06 3 25 Hex Thin Nut GB6172 M08 4 26 Hex Socket Set Screw with Flat Point GB77 M08x16 4 27 Copper Column 4 28 Parallel Pin GB119 A5x12 2 29 Hex Socket Set Screw with Flat Point GB77 M12x08 2...

Page 15: ...30 2 53 Flat Washer GB97 04 4 54 Small Limit Switch 1 55 Hex Nut GB6170 M04 2 56 Spring Washer GB93 04 2 57 Wiring Connector 1 58 Connector Plate 1 59 Gear Belt 1 60 Woodruff Key GB1099 3x13 2 61 Copper Sleeve 1 62 Feed Motor Connector 1 63 Washer 1 64 Motor Cover 1 65 Retainer 1 66 Hex Socket Button Head Screw GB70 2 M04x10 4 67 Sleeve 2 68 Spring 1 69 Hex Socket Set Screw with Cone Point GB78 M0...

Page 16: ...x12 2 9 Flat Washer GB97 06 2 ITEM DESCRIPTION REQ D 1 Housing Tool Holder L H 1 2 Spring Extent 1 3 Washer 1 4 Spring Washer 1 5 Dial Micrometer 1 6 Oriented Sleeve 1 7 Shaft Micrometer 1 8 Holder Tool L H 1 9 Holder Tri Insert L H 1 10 Slot Pin 2 11 Set Screw 1 12 Set Screw 1 13 Copper Column 1 14 Hex Thin Nut GB6172 M06 1 15 Hex Socket Set Screw with Cone Point GB78 M08x08 1 16 Slotted Set Scre...

Page 17: ...on Pole KF 45 1 14 Flat Washer GB97 04 8 15 Spring Washer GB93 04 6 16 Hex Socket Button Head Screw GB70 2 M04x10 4 17 Flat Washer GB97 08 6 18 Hex Head Bolt Full Thread GB5781 M08x20 3 19 Spring Washer GB93 08 3 20 Hex Nut GB6170 M08 3 21 Flat Washer GB97 03 4 22 Spring Washer GB93 03 2 23 Cross Recessed Pan Head Screw GB818 M03x10 2 24 Cross Recessed Pan Head Screw GB818 M04x14 4 25 Hex Nut GB61...

Page 18: ... Plate 1 2 Mat Plate 1 3 Left Plate 1 4 Below Hang Plate 1 5 Right Plate 1 6 Space Plate 1 7 Hex Head Bolt Full Thread GB5781 M08x20 12 8 Flat Washer GB97 08 40 9 Spring Washer GB93 08 20 10 Hex Nut GB6170 M08 20 11 Hex Head Bolt Full Thread GB5781 M08x40 8 ...

Page 19: ...et Button Head Screw GB70 M06x16 1 3 Flat Washer GB97 06 1 4 Control Box 1 5 Hex Head Bolt Full Thread GB5781 M08x20 3 6 Hex Nut GB6170 M08 3 7 Spring Washer GB93 08 3 8 Flat Washer GB97 08 6 9 Upper Hang Plate 1 10 Work Lamp 1 11 Cross Recessed Pan Head Screw GB818 M08x10 3 ...

Page 20: ...20 20 WIRING DIAGRAM ...

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