12
MUELLER
®
Shur Stop
TM
Unit 68 PE Line Stopping System
Troubleshooting / Storage
13
TrOUBLesHOOTiNG
• Store the equipment in a closed
place.
• Protect the equipment for humidity
and extreme changes in the
temperature.
In case of long periods of inactivity,
the equipment must be stored taking
suitable precautions for the place it
is stored in and the duration of the
storage:
• Prevent corrosive substance
coming into contact with the
equipment.
sTOrAGe
proBlem
Cause
solution
Drilling time too long
Worn cutter
Replace the cutter.
Gas leakage between the
drilling shaft and the screw
Worn O-rings
Replace the O-rings.
Inadequate sealing of the stopper No lubrication performed on the
With PURITY-FG Spray or equivalent,
oblique walls of the sealing ring
lubricate the angled walls of the
sealing ring expanding and retracting
it completely.
No lubrication performed on the
Lubricate the sealing disk with
sealing disk of the plug bell
PURITY-FG Spray or equivalent.
Presence of residue on the bottom Clean again using the
of the pipe
inspection / cleaning machine.
Inadequate sealing of the
Insufficient tightening of the screws
sealing disk
of the flange that compress the
Tighten the screws slightly.
sealing disk
Inadequate sealing of the valve
Equalization valve not closed
Close the equalization valve.
Residue on the sealing O-ring
Before the next use, replace the
O-rings.
