8. Connect the hoses coming from
the hydraulic control unit to the quick
couplings of the hydraulic operator
ensuring the lever is in the neutral
position (
F.
).
9. Start the hydraulic control unit.
MUELLER
®
Shur Stop
TM
Unit 68 PE Line Stopping System
Operating Instructions
8
10. Turn the hydraulic distributor
lever clockwise (
G.
).
11. Turn the feed screw clockwise
to begin drilling.
12. When the shell cutter makes
contact with the pipe, turn off
hydraulic operator and stop drilling.
13. Loosen the knob on the
graduated scale.
14. Turn the graduated scale 90°
clockwise.
15. Then turn the knob on the
graduated scale until it is tight (
H.
)
16. Loosen the collar using the knob.
5. Lift and position the drilling
machine onto the slide gate valve in
the open position. Tighten the bolts
in a criss-cross pattern.
Then turn the feed tube clockwise
to lower the shell cutter until the pilot
bit comes in contact with the pipe
(
C.
).
CAUTIoN: After each opening
and closing of the valve, remove
the operating wrench to prevent
accidental movement.
6. Turn the feed tube a quarter
turn counter-clockwise to avoid
jamming when drilling begins.
7. Position the motor support, onto
the boring bar operting square.
Ensure guide coulumns are lined up
with housings (
D.
).
NOTE: There is an opening at the
very top of the shaft. This is to
allow the insertion of a pin, which
ensures that the motor support
bushing does not slide out (
e.
).
D.
F.
Hydraulic
operator
Lever in Neutral Position:
Shaft Stopped
G.
Lever
turned 90°
clockwise:
shaft turns
clockwise
!
C.
Hose Coming
from Hydraulic
Control Unit
H.
Collar
Graduated
Scale
Knob
Hose Coming
from Hydraulic
Control Unit
e.
Anti-Slide
Pin
Graduated
Scale
Collar
Motor
Support
Bushing with
Control Dowel
Guiding
Columns
