3
Installation of Corporation Valve with Service Clamp on Water Main
MUELLER
®
Mega-Cut
TM
Drilling Machine
Installation / Operating Instructions
9. Cut hole by turning Boring Bar
clockwise, while turning Feed
Sleeve clockwise a little at a time.
DO NOT force Cutter into the main.
Use a light even feed at the start,
then a somewhat heavier feed and
finish with a light even feed.
Completion of hole through the main
will be accompanied by an obvious
reduction in resistance felt while
turning Boring Bar and Feed Sleeve.
IMPORTANT: Continue turning
Boring Bar and Feed Sleeve a few
additional revolutions to make
sure the coupon is completely
removed from the wall of the
main.
CAUTION: To avoid possible
injury, keep head and body away
from the end of Boring Bar at all
times. Once hole has been cut
through the wall of the main, the
Boring Bar will be under full line
pressure, resulting in a piston
action that will tend to force
the Boring Bar to the rearmost
position. Control or restrain
rearward movement of Boring Bar
at all times by keeping the Feed
Sleeve Connector engaged with
the Feed Sleeve, and by turning
the Feed Sleeve in a counter-
clockwise direction to back the
Cutter out of the main and clear of
the corporation valve.
10. Using both hands, turn Feed
Sleeve in counter-clockwise
direction to move Boring Bar to
the rearmost position and retract
Cutter from main. For larger holes or
thicker pipe, a smooth-jawed wrench
may be used on Feed Sleeve flats to
facilitate turning Feed Sleeve.
Machine Set Up
1. Attach service saddle and
corporation valve at the appropriate
angle to the water main using
accepted installation procedures,
and tighten all components to
specified torque requirements. Make
sure corporation valve is in fully
open position.
2. Attach proper Machine Adapter
and Gasket to Machine Body wrench
tight using a smooth-jawed wrench.
Selection of Adapter depends
upon the type and size of outlet
connection on the corporation valve.
3. Attach proper Shell Cutter or Drill
to Boring Bar. Use wrench flats on
tool and Machine Body to tighten
securely — DO NOT use any tool in
the slots of the Shell Cutter.
4. lightly lubricate outside of Shell
Cutter or Drill using Mueller
®
Cutting
Grease.
5. Disengage Feed Sleeve
Connector from Feed Sleeve and
pull Boring Bar to the rearmost
position and hold in this position
during the next step.
6. Check to be sure corporation
valve is open. Attach Machine
assembly (with Cutter, Adapter, and
Gasket) to corporation valve outlet
and tighten wrench tight.
7. Push Boring Bar forward until
Feed Sleeve Connector can be
engaged in slot at top of Feed
Sleeve (turn the Sleeve counter-
clockwise if necessary).
8. Turn Connector clockwise in
slot, then advance Feed Sleeve
by turning clockwise until Cutter
contacts main.
11. Make sure Cutter is clear of
corporation valve, then close valve
and remove Machine and Adapter as
a unit.
12. Remove plastic coupon using
one of the following methods:
a) Use Drift Pin (Part Number
63264) to pry between the coupon
and the top (or root) of the cutter
slot and push the coupon from the
cutter. If plastic fills the entire slot
area, engage the plastic in the slot
with the tip of the Drift Pin to drive
the coupon from the cutter.
CAUTION: Prying against
the sides of the cutter slot or
using a prying tool that is wider
than the slot can damage the
cutter and make it unusable.
b) With the cutter removed from the
machine, use a Coupon Removal
Tool (Part Number 681242)
inserted through the tapped hole
in the cutter shank to drive the
coupon out of the cutter.
13. Clean and relubricate cutting tool
before using it to make another cut,
or before storing tool for future use.
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