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3.  Remove the loops of the left and right coil return springs (50-3-6) from the left 

and right coil return spring pins (50-3-7). 

CAUTION:

 These springs are under 

considerable tension and should be handled carefully. 

4.  Loosen both left and right coil return spring screws (50-3-8) and remove the 

springs from the arm bar (50-3-3). 

5.  Twist a piece of flexible wire around the actuating arm cross head (50-3-2) 

and the actuating pawl (50-3-10). Pull the actuating pawl far enough toward 
the cross head, so that it clears the wheels. Take care not to damage your 
fingers. 

6.  Remove the three machine screws that hold the retaining pawl spring (50-3-

25). Mark the outside of the spring before removing it. 

7.  It is not necessary to remove the pawl block (50-3-23) in order to remove the 

wheels. 

8.  Remove both wheel shaft set screws. Pull the retaining pawls (50-3-21) away 

from the wheels. 

9.  Slowly push the wheel shaft (50-3-18) out of the frame (50-3-1). Take care 

not to drop the wheels or the actuating arm. Maintain the original wheel order 
for proper assembly. The actuating arms should be treated with care. If it is 
twisted, re-assembly may not be possible. 

Removing the Pawl Block (50-3-23) 

1.  Remove the two pawl block screws (50-3-24). The pawl block (50-3-23) 

should lift out. The pawl block fits tightly in the frame and it may be necessary 
to tap it. Care should be taken not to bend the retaining pawls (50-3-21) or the 
retaining pawl shaft (50-3-22). 

2.  If the retaining pawls are to be removed, maintain the original order for re-

assembly. 

Removing the Actuating Pawl (50-3-10) 

1.  While holding the actuating pawl (50-3-10) to keep it from rotating, remove 

the twisted wire. 

2.  Allow the actuating pawl to slowly rotate, relieving spring torque, until it strikes 

the cross head. 

3.  Unscrew the actuating pawl shaft (50-3-9) from the arm, while holding the 

actuating pawl spring (50-3-17) above and below with two fingers. Remove 

Revision # 2.0

 

Summary of Contents for 250P

Page 1: ...MP TOOL CO INC USER MANUAL PARTS LIST MODEL 250P 1 4 3 8 Characters S N ___________________________ TEL 207 876 3541 FAX 207 876 3566 P O BOX 187 1 HIGH ST SANGERVILLE ME 04479 www numberall com office numberall com ...

Page 2: ...y rotate the wheels The hot stamping equipment when purchased includes the heating elements a cord and switch A temperature controller is not included unless purchased as an option An overheated numbering head is not covered by warranty unless wired to our proportional temperature controller Refer to the catalog and price list for additional options to hot stamping Precautions The following precau...

Page 3: ...he heating elements when on are much hotter than the flash point of most solvents 7 Protect heater wires and thermocouple leads These wires are fragile and could easily be broken 8 Make sure the heaters are mounted well into the frame with no parts exposed Exposed heater sections will overheat and could damage the element 9 A CLEAN HEAD IS A MUST A MAINTENANCE SCHEDULE MUST BE DETERMINED SO THAT E...

Page 4: ...he actuating or retaining pawls can occur if this warning is not heeded 6 Make sure that each number wheel is completely indented before stamping If the wheels are indented properly they should snap or click back into the indent position after being rotated slightly beyond that position Stamping with the wheels between indents can damage the actuating or retaining pawls 7 When adjusting the trippi...

Page 5: ...the right most wheel Rotate it away from the actuating pawl 50 3 10 until the number one is at the bottom 2 Rotate the other wheels away from the actuating pawl until the number zero is at the bottom 3 Further rotate the wheels except the unit wheel slowly until it snaps into the next indent At this wheel position a recessed space is downward and hence no impression will be made As the consecutive...

Page 6: ...rom the wheels 9 Slowly push the wheel shaft 50 3 18 out of the frame 50 3 1 Take care not to drop the wheels or the actuating arm Maintain the original wheel order for proper assembly The actuating arms should be treated with care If it is twisted re assembly may not be possible Removing the Pawl Block 50 3 23 1 Remove the two pawl block screws 50 3 24 The pawl block 50 3 23 should lift out The p...

Page 7: ... the left hand side through the hole in the leg and halfway across the space between the legs 7 Slip the actuating pawl spring 50 3 17 over the pin in such a way that the right angle bend in the spring leg mates with the right angle surfaces between the legs 8 Rotate the other leg of the spring in the direction of increasing spring torque until it catches on the side of the pawl block opposite the...

Page 8: ...nto the shaft in the original order advancing the shaft when necessary Make sure to remove any burrs on the wheels or actuating arms Use a medium India stone to remove burrs CAUTION the actuating arms are chrome plated and should not be stoned more than is necessary The indent side of the wheels goes on the right 20 The wheel shaft ends should be flush with the frame sides Align the flats on the s...

Page 9: ...e right spring as follows when viewed from the loop end the loop will be on the right hand side of the spring NEVER interchange springs from different Model 250P Numbering Heads 31 Secure the inside end of the spring by tightening the coil spring return screws 50 3 8 32 Rotate the spring loop in the direction of increasing spring torque and slide the loop over the coil return spring pin 50 3 7 CAU...

Page 10: ... Not required with Air Trip 1 Actuating Pawl 50 3 10 1 Actuating Pawl Springs 50 3 17 2 Retaining Pawls Regular 50 3 21 1 Retaining Pawl Unit 50 3 21 1 Retaining Pawl Spring 50 3 25 Spare wheels should be stocked depending on use and the material being stamped Revision 2 0 ...

Page 11: ...achine come pre assembled Precautions The following precautions should be observed when assembling and operating the air tripping attachment 1 The actuating arm bar moves very rapidly when the air cylinders extend Keep both hands completely free of that area 2 The air tripping system is designed to operate with a 60 80 psi air supply A filtered line is recommended to prevent any contamination 3 Th...

Page 12: ...ructions apply to assembling the air tripping attachment Since many options are available and most press installations are customized no detailed directions are available 1 Mount the numbering machine to the press 2 Design and mount a bracket for the miniature roller valve so that the ram will activate the valve on the upstroke Make sure the valve does not open before the numbering machine leaves ...

Page 13: ...dvance the wheel manually to the next indent Open the speed control further and cycle the press Continue this process until the numbering machine advances properly If the piston rods push unequally adjust the lengths as per the previous instructions If you have any problems or require additional instructions please contact our sales office When calling always provide the serial number Revision 2 0...

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Page 16: ...berall Stamp Tool Co Inc For extra copies of this manual please call or visit our website P O BOX 187 1 HIGH ST SANGERVILLE ME 04479 www numberall com office numberall com TEL 207 876 3541 FAX 207 876 3566 ...

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