25. Holding the pawls into their slots, turn the pawl block over and insert it into the
milled cut in the frame. Make sure each pawl rests in between each wheel.
26. Evenly tighten the pawl block screws (50-3-24). Make sure the pawls do not
bind. They should work freely.
27. Position the retaining pawl spring (50-3-25) over the retaining pawls with the
original side out. The spring is not symmetrical and thus is only correctly
assembled one way. The spring “fingers” should align with the retaining pawl
centers.
28. Evenly tighten the retaining pawl spring screws.
29. Rest the frame with the front side up and the frame legs toward the operator
as in instruction 3.
30. Slide the right coil return spring (50-3-6) onto the arm bar (50-3-3).
Determine which is the 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).
CAUTION:
The springs will
be under considerable torque and could rotate rapidly if released.
33. Repeat steps 30, 31, and 32 for the left coil return spring.
34. Remove the flexible wire holding the actuating pawl.
35. By hand, rotate each wheel away from the actuating pawl until they indent.
The Model 250P wheels will only rotate in one direction.
DAMAGE
to the
pawls can occur if they are forced in the opposite direction.
36. Check the operation of the Model 250P Numbering Head. The actuating arm
should operate smoothly without any binding.
Revision # 2.0
