Disassembly Procedures
Assembly 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, return the hand cup for repair.
Note: Disassembly of the plunger assembly is not recommended.
• Replace the plunger assembly if the plunger housing is bent, cracked or otherwise damaged.
• Otherwise, wipe the plunger assembly clean with a soft, lint-free cloth, paying particular
attention to the U-cup and button.
Be careful to keep the plunger assembly clean when
it is not in the handle.
Remove Handle from Vacuum Pad
• Remove the 4 screws, and separate the handle from the pad.
• Wipe off the contact surfaces between the handle and pad, to ensure a good seal
during reassembly.
• Make sure the pad’s suction inlet is clean, dry and free of contaminants.
Remove Retainer and Check Valve from Handle
• Remove the retainer and check valve using a hooked scribe or similar tool.
Be careful not to scratch the inside of the handle!
• With a soft, lint-free cloth, carefully clean these parts.
• Wrap a small dowel or rod with a soft, lint-free cloth and gently wipe the inside of the
handle, to make sure it is clean and dry (lubricant-free).
Inspect Handle, and Reinstall Check Valve and Retainer
• Carefully examine the inside of the handle for scratches and contaminants, using a flashlight:
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Scratches between the midpoint and the closed end of the handle can cause leakage.
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Scratches near the open end of the handle rarely present a problem.
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Make sure that no lubricant remains inside the handle.
• Drop the check valve inside the handle so that it lies flat against the closed end.
• Using a dowel or other tool that will not scratch the sides of the handle, push the retainer all
the way into the handle to hold the check valve securely in place.
Attach Handle to Vacuum Pad
• Align the screw holes in the handle with those on the pad.
• Reinstall the screws and tighten them securely
.
Reinsert Plunger Assembly into Handle
• Using a soft swab, apply light coating of plunger lube in a ring around the inside of the handle,
at a point about 1" (2.5 cm) from the closed end. Keep the open end of the handle as dry
(lubricant-free) as possible.
• Plunger lube is recommended; contact Wood's Powr-Grip Customer Service to order this.
Do not use improper lubricants in the handle!
• While making sure to avoid contaminating the check valve with lubricant, insert the U-cup end
of the plunger assembly into the handle.
• Push the plunger assembly until it begins to tighten; then seat the plunger assembly with one
strong, swift motion.
• Operate the plunger, turning it to spread the plunger lube thoroughly on the U-cup.
• Now the cup is assembled and ready for testing.