MUELLER
®
C1-36 Drilling Machines
Installation Instructions
11
into the back of the travel indicator.
Care must be taken to not over tighten
as the material is aluminum. (
D.
)
7. Replace the shims under the
travel indicator in the same position
as removed in step 4. (
D.
)
8. Mount the clamp to the mounting
plate with the (4)
1
/
4
”-20UNC x
1
/
2
”
long bolts and lock washers. (
E.
)
9. Insert the
5
/
16
”-18UNC x 3
1
/
2
” long
bolt through the mounting hole in the
mounting bracket fork supplied with
1. Drive the retaining pin from the
automatic feed knob with a punch.
Position the knob so the pin can be
easily removed. Discard the knob. (
A.
)
2. Reuse the pin to attach the spool
piece from the kit. The pin will go
into the same hole used to hold the
knob. Once installed, ensure the
pin does not stick out into groove of
spool piece on either side. (
B.
)
3. Loosen the (2) hex bolts on the
top back of the travel indicator
mounting plate. (
C.
)
4. Before removing bolts check to
see if shims have been used to align
the indicator with the idler shaft.
If shims have been used, these
will need to be placed back in the
same position when attaching the
automatic feed lever. (
C.
)
5. Remove the (2) hex bolts and
discard. (
C.
)
6. Mount the base plate of the
automatic feed lever to the mounting
plate on the C1-36 machine using
the
3
/
8
”-16UNC x 1.000” long bolts
supplied in the kit. These bolts screw
Replacing Feed Knob with Auto-Feed Lever
A.
C.
E.
B.
D.
the kit. Orient the bracket with the
side marked “top” toward the head of
the bolt when inserting the bolts. (
F.
)
10. Secure the mounting bracket fork
against the head of the bolt using a
5
/
16
”-18UNC hex head nut and lock
washer. (
F.
)
11. With the idler shaft and spool in
the pulled-out position (disengaged),
place clamp handle in the upright
position. (
F.
)
12. Install a
5
/
16
”-18UNC hex head
nut onto the
5
/
16
”-18UNC x 3
1
/
2
”
bolt and a lock washer. This nut
and washer will be used to properly
position the bolt for travel. (
F.
)
13. Slide the mounting bracket fork
into the spool opening. Then thread
the
5
/
16
”-18UNC x 3
1
/
2
” long bolt into
the automatic feed lever until the
head of the bolt contacts the top of
the mounting bracket fork. (
F.
)
14. Operate the automatic feed lever
handle and observe the operation of
the indicator shaft. It should operate
smoothly between engaged and
disengaged positions. Adjustments
can be made by adjusting the length
of the bolt engaged into the automatic
feed lever. Once the adjustment is
complete, tighten the nut and lock
washer against the automatic feed
lever to lock in place. (
F.
)
F.
