Minster IOI, Руководство по обслуживанию

Страница: 61 / 92

5. As the slide approaches the bottom of the stroke,
make certain that the cam follower remains in con-
tact with the cam. If the cam follower will not remain
in contact with the cam, stop the main drive motor.
Place the Stroking Selector Switch in the OFF posi-
tion. Make certain that the flywheel has stopped
turning completely. Attach a WARNING sign to the
press controls to warn other personnel that the
press is currently being serviced.
6. Readjust the cam following the procedure
described in Step 2, above, until the cam follower
remains in contact with the cam throughout the
entire stroke.
SLIDE INSTALLATION
If the press slide has been removed for remachining, or
any other purpose, it may be reinstalled as follows:
1. Make certain that the slide gib ways are perpendic-
ular to the slide face and are parallel with each
other. Gib ways must be perpendicular to the slide
face within 0.0015” (.0381 mm) and must be paral-
lel to each other within 0.002” (.0508 mm).
2. Check the position of the press crankshaft. Crank-
shaft should be placed at the Bottom Dead Center
of the stroke, and all air should be exhausted from
slide counterbalance cylinder (if provided).
3. With the slide and connection preassembled, install
the connection on the crankshaft. Install and torque
the connection cap screws in accordance with the
procedure listed under “Connection Cap Installa-
tion” on page F-6.
4. Install the gibs on the press frame and into the slide
gib ways. Tighten the gib mounting bolts finger tight,
then tighten the gib adjusting bolts until the back
sides of each gib are approximately .875” (22.2
mm) from the frame. (See Figure 10F.)
5. Adjust the slide shutheight to its upper limit. (See
“Slide Shutheight Adjustment,” in the Operation
Manual (furnished) for further information.)
6. Clean the slide face and the top surface of the bed
(or bolster.)
7. Insert a pry bar between the slide and frame. Using
the pry bar, carefully apply pressure at the center of
the slide in order to force the slide against the oppo-
site gib. Do not force the pry bar. Apply only
enough pressure to achieve zero clearance at the
opposite gib.
8. While an assistant maintains pressure on the slide,
place a base mounted dial indicator between the
slide face and bed (or bolster) and set it at the “0”
reference mark. Now take readings near each of the
four (4) corners of the slide.
9. Slide parallelism is considered normal when indi-
cator readings are within .003”. (0.0762 mm), or
when the slide face is parallel to the bed within a
tolerance of .001” per foot (0.0254 mm per each
300 mm) of slide width, whichever is greater. If the
readings exceed recommended tolerance, adjust
the gibs until parallelism is achieved.
10. Check the clearance between the connection and
the crankshaft. (See Figure 11F.) Clearance on
each side of the connection should be .03” (.762
mm) nominal ± .01” (.254 mm). Adjust the gibs
until proper clearance is achieved, then recheck
slide parallelism.
NOTE: If parallelism and connection/crankshaft
clearances cannot be met, refer to “Fac-
tors Affecting Parallelism And Vertical
Movement,” page F-11, for possible caus-
es and/or corrections.
11. When parallelism and connection/crankshaft
clearances are within specifications, tighten the
gib mounting bolts on one gib only. Then lock
the gib adjusting screws for that gib in place.
12. Insert a pry bar between the slide and frame on
the side of the slide with the untightened gib.
Using the pry bar, carefully apply pressure at the
center of the slide in order to force the slide
against the opposite gib. Do not force the pry
bar. Apply only enough pressure to achieve zero
clearance at the opposite gib.
F - 10
Set Initial Clearance at
.875” (22.2 mm)
Gib Adjusting Bolts
Gib ~
~ Slide
Gib Mounting Bolts
Figure 10F. Installing the slide.