7
Signet 3719 pH/ORP Wet-Tap
Lubricant
Replacing O-rings
Tools required:
• Table vise
• Side cutter to cut O-rings
• 1 3/8" wrench
• Small screwdriver
3
1
Remove shroud
2
Release pin
Press and hold release pin, push
down to extend Wet-Tap piston
Carefully remove the Stainless Steel
set screw
Remove nose piece
4
5
Remove old O-rings (use the screwdriver to
carefully lift o-ring from groove and cut with scissors).
Inspect O-ring grooves for any damage or nicks
that may compromise the integrity of the liquid seal.
Clean the Wet-Tap piston and nose piece.
Open the lubrication pouch and lightly
lubricate the new O-rings. Carefully roll
O-rings over the tip of the piston and
into each O-ring groove.
6
Lubricant
7
countersink hole
Stainless Steel set screw hole
Locate the countersink hole on the
nosepiece. Verify that it is clean and
free of debris. Locate the threaded hole
on the main body. Verify that threads
are free of debris and are not damaged.
If threads are damaged, the Wet-Tap should
be replaced.
Replace the Stainless Steel set screw. Do not over
tighten. When properly installed, the set
screw should be flush with the Wet-Tap body.
8
9
Replace the shroud.
The Wet-Tap is ready for reinstallation.
Assemble the nose piece back onto the
Wet-Tap main body.
NOTE:
Clean with a soft brush and a
chemical compatible solvent to
remove any debris
watch a video of these instructions.
Click here
• 3/16
Allen wrench
• Scissors
• Replacement O-ring kit for 3719
Wet-Tap (3-3719.392 code 159 310 304)
