G.
Lever turned
90° clockwise:
shaft turns
clockwise
8. Remove the handles.
9. Position the motor support onto
the boring bar operating square.
Ensure guide columns 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.
).
10. 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.
).
MUELLER
®
Shur Stop
TM
Unit 812 PE Line Stopping System
Operating Instructions
8
11. Start the hydraulic control unit.
12. Turn the hydraulic distributor
lever clockwise (
G.
).
13. Insert the removable handle in
the drilling machine.
5. Lift and position the drilling
machine onto the slide gate valve in
the open position. Tighten the bolts
in a criss-cross fashion (
C.
).
CAUTIoN: After each opening
and closing of the valve, remove
the operating wrench to prevent
accidental movement.
6. Insert the removable handles
7. Lower the shell cutter to the pipe
by using the removable handles
placed on the head of the drilling
machine, turning them clockwise
until contact is made with the
pilot drill on the pipe. When this
occurs, turn the feed tube a quarter
turn counter-clockwise to avoid
jamming when drilling begins.
!
C.
F.
Hydraulic
Distributor
Lever in Neutral Position:
Shaft Stopped
Pipe coming
from Hydraulic
Control Unit
Pipe coming
from Hydraulic
Control Unit
e.
Anti-
Slide
Pin
D.
Graduated
Scale
Collar
Motor
Support
Bushing with
Control Screw
Guiding
Columns
