4. Attach the inserting tool and plug
onto the plug holder support and
tighten the spring detents (
D.
).
5. Lubricate the O-ring of the internal
plug with PURITY-FG Spray or
equivalent and retract the plug into
the machine adapter.
MUELLER
®
Shur Stop
TM
Unit 68 PE Line Stopping System
Operating Instructions
12
Preparation of Drilling Machine
To Insert Completion Plug
1. Attach completion plug holder
support to the drilling machine shaft
(
A. & A1.
).
2. For the 6ʺ, screw the inserting
tool onto the completion plug by
alighing two of the four holes.
Tighten the locking screws but
do not tighten completely, leaving
some minimal play between the two
parts (
B.
).
3. For 8ʺ, place the plug holder
flange on the completion plug and
attach it with the provided screws
(
C.
).
6. Assemble the completion machine
on the slide gate valve, open the
equalization valve and then open the
slide gate valve.
7. Turn the feed screw clockwise
and move the completion plug
towards the fitting.
8. Install the ratchet handle (
e.
).
9. Fully tighten the completion plug,
taking care to SIMULTANEOUSLY
turn both the ratchet and the lead
screw clockwise.
10. Bleed any residual pressure
off using the bleed valve (see
point 28 on page 9) and check the
completion plug for leaks.
11. Remove the ratchet
and turn the feed screw
of the machine counter-
clockwise until the shaft
is released from the plug
holder support.
12. Remove the
completion machine, the
slide gate valve and the
plug holder support (
F.
).
13. Install the completion
cap (
G.
).
A.
Plug holder
support
A1.
Allen Screws
D.
C.
Allen Key for tightening
Allen Screws
Plug Holder
Flange
Screwdriver
to tighten the
M12 Spring
Detents
Spring
Detents
e.
3/4ʺ Ratchet
Spanner
G.
Closing Flange
F.
Internal Plug
Allen Key to
Tighten Allen
Screws
B.
Allen Key with Round End for
Tightening M8 Set Screws
Inserting Tool
Internal
Plug
