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Punch Unit
Disassembly
1. Remove yoke pin unit (C) and ram unit (A) from the
punching yoke (G).
Note: If a punch, die and stripper plate are on the
punch unit, remove them before proceeding.
See Changing the Punch, Die, and Stripper Plate
in this manual.
2. Clamp the bus bar punch yoke (X) into a vise.
3. Remove the mounting plates (U) by unscrewing four
button-head cap screws (V).
4. Remove the alignment table (D) from the by un-
screwing four button-head cap screws (V).
5. Unscrew the shoulder screws (H).
6. Remove the M20 socket-head cap screws (HH)
from the punching yoke.
Note: With your free hand, maintain a downward
pressure on the punching yoke (G). The punch
guide return springs (P) are under pressure, and
they will spring the punching yoke upward when
the socket-head cap screws are removed.
7. Lift the punch guide plate (I) subassembly off of the
two punch frame spacers (O). Set the punching
yoke subassembly aside.
8. Lift the guard unit (M) up and off of the punch unit.
9. Slip the two punch guide return springs (P) off of the
punch frame spacers.
10. Unscrew two M20 socket-head cap screws (W) from
the bus bar yoke (X). Remove the punch frame
spacers.
11. Remove the bus bar yoke (X) from the vise.
Assembly
1. Place the bus bar yoke (X) into a vise with the small
drilled and tapped holes pointing upward.
2. Press the two punch frame spacers (O) firmly into
the two counter bores. Install the two M20 socket-
head cap screws (W) through the bus bar punch
yoke and through the frame spacers (O). Slip the
two punch guide return springs (P) over the punch
frame spacers.
3. Attach the punch scale (Z) to the bus bar punch
yoke (X) with two M6 flat head screws (Y). Slip four
Belleville washers (S) over four M6 socket-head cap
screws (R); insert the cap screws through the die
holder (T) as shown. Thread, but DO NOT
TIGHTEN, the cap screws.
Note: These cap screws will be tightened during the
die alignment procedure.
4. Remove the bus bar yoke subassembly from the
vise.
Greenlee Textron / Subsidiary of Textron Inc.
Bus Bar Punch System
5. Clamp the punch guide plate (I) into the vise. Press
6. Place the two shoulder screws (GG) into the two
7. Thread the two ball plungers (L) into the stripper
8. Remove the punch guide plate subassembly from
9. Slide the punch guard unit (M) over the punch
10. Slide the punch guide plate subassembly over the
11. Set the punching yoke (G) into place on the two
Note: You will need to compress the punch guide
12. Torque all four M20 socket-head cap screws (W)
13. Install the two shoulder screws (H) through the
14. Attach the assembled alignment table (D) to the bus
15. Tighten the four button-head screws (V).
16. Attach each mounting plate (U) to the bus bar
17. Attach the serial plate (F) to the punching yoke (G)
14
the four self-lubricating bearings (J) into the two
large bores, installing the first bearings to the
bottom of the counterbores and the second bear-
ings flush with the surface.
smaller counterbored holes. Slip the two springs (K)
over the bolts, and capture the springs with the
stripper plate holder (FF). Thread the two shoulder
screws into the stripper plate. See the exploded
view.
plate. Place any stripper plate into the center hole
of the stripper plate holder. Twist the two ball
plungers clockwise until they contact the stripper
plate, then back out both ball plungers 1/4 turn.
the vise. Put the bus bar yoke subassembly back
into the vise.
frame spacers.
punch frame spacers (O); the punch guide plate
subassembly fits inside the punch guard unit (M),
and the frame spacers protrude slightly from the
punch guide plate.
punch frame spacers. Attach the punching yoke
with two M20 socket-head cap screws (HH).
return springs.
and (HH) to 225-275 foot-pounds (305-373 Nm).
guard unit (M) and into the punching yoke (G).
bar punch yoke (X) with four button-head screws
(V) as shown in the exploded view. Place any die in
the die holder (T). Adjust the alignment table so that
the table top is level and at the same height as the
top of the die.
punch yoke (X) with two M6 button-head screws
(V). Set the assembly on a flat surface and tighten
the screws.
with two drive screws (E). Attach the self-adhesive
instruction decal (N) to the guard unit (M). Attach
the self-adhesive caution decal (37) to the side of
the punch alignment table (D). See exploded view
for decal locations.
4455 Boeing Dr., Rockford, IL 61109-2988
815/397-7070
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