Advertisement
Disassembly Procedures
Remove Plunger Assembly from Handle
Grasp the head of the plunger assembly and pull it straight out from the handle. If the plunger
assembly is too tight to be removed this way, it is best to return the cup to the factory for repair.
Replace the plunger assembly if the plunger housing is bent or dented. Otherwise, wipe the
plunger assembly clean with a soft, lint-free cloth. Be careful to keep the plunger assembly clean
and free from contaminants when it is not in the handle. Disassembly of the plunger assembly
is not recommended.
Remove Release Valve from Handle
Remove the 2 screws holding the release valve to the handle. Carefully slide the valve stem out
from the nipple on the vacuum pad. As the valve is removed, the nylon check ball may roll out;
be careful not to lose it!
Remove Handle from Vacuum Pad
Remove the 6 handle screws, and separate the handle from the pad. Wrap a small dowel or
rod with a soft, lint-free cloth and wipe the inside of the handle, to make sure it is clean and dry
(lubricant-free).
Assembly Procedures
Inspect and Attach Handle to Vacuum Pad
Carefully examine the inside of the handle for scratches and contaminants, using a flashlight
for illumination. Scratches between the mid-point and the closed end of the handle can cause
leakage. Scratches near the open end of the handle rarely present a problem. Make sure that no
lubricant remains inside the handle. Then place the handle on the pad so its nipple fits through
the large hole in the base plate near the closed end of the handle. Align the screw holes and
reinstall the handle screws.
Reinstall Release Valve on Handle
Apply a light coating of plunger lube to the valve stem. Make sure the check ball and O-ring are
in position, and slide the valve stem into the pad nipple, keeping the O-ring against the closed
end of the handle. Place the valve guard over the release valve and align the screw holes in the
guard, valve and handle. Then reinstall the screws. Even when the screws are tight, the valve
may not always appear to fit flush against handle end plate. This is normal.
Reinsert Plunger Assembly into Handle
Using a soft swab, apply a ring of lubricant around the inside of the handle, at a point about 1"
[25 mm] from the closed end. Keep the open end of the handle as dry (lubricant-free) as possible.
Silicone lubricant is recommended and available in appropriate quantities by contacting Wood's
Powr-Grip Customer Service. Do not use improper lubricants in the handle.
Insert the U-cup end of the plunger assembly into the handle, and push until the plunger assembly
begins to tighten; then seat the plunger assembly with one strong, swift motion. Operate the
plunger to spread the lubricant, thoroughly coating the outside of the U-cup by twisting the plunger
as it moves. Now the cup is assembled and ready for testing.
Advertisement
