WOOD'S POWR-GRIP N4950 Maintenance Manual

ESCANEAR O
PULSAR PARA
ESPAÑOL
SCANNEN ODER
KLICKEN FÜR
DEUTSCH
NUMÉRISER OU
CLIQUER POUR
FRANÇAIS
THE ORIGINAL
& TRUSTED NAME
IN VACUUM LIFTING
EQUIPMENT
(1) 800.548.7341
WPG.com
908 West Main - P.O. Box 368
Laurel, Montana 59044 U.S.A.
(1) 406.628.8231 (phone)
Wood's Powr-Grip products are sold
through authorized dealers.
1MTS
Rev. 5.0/ 06-24 Metal Troubleshooter
WOOD'S POWR-GRIP
Inspect the Hand Cup Regularly:
• Make sure the air filter is in place; if not, discontinue use until the filter is replaced.
• Examine the plunger assembly and handle for dents, cracks or other damage.
• Make sure the face of the vacuum pad feels grippy (not slick). Otherwise, replace the pad.
• Examine the vacuum pad for cuts or roughness on the sealing edges (see Inspect the Sealing Edges below).
• Periodically test the cup for excessive leakage (see Leak-Test the Hand Cup below), sluggishness
in plunger action or radical changes in the number of strokes needed to keep the red line hidden.
• If the cup does not function normally, review the TROUBLESHOOTING GUIDE (overleaf) to
determine which corrective action is needed.
Clean the Vacuum Pad:
• Remove the air filter from the pad face.
• Use a clean sponge or lint-free cloth to apply soapy water or another mild cleanser to the pad face.
• Never use solvents or rubber conditioners as a cleaning agent (see WARNINGS).
• To prevent liquid from contaminating the pump during cleaning, hold the cup facedown
or cover the suction inlet in the filter recess.
• If the pad has a felt strip at the edge, be careful not to dampen it.
• Rinse and wipe all residue from the pad face and allow the cup to dry.
• Reinstall the air filter.
Inspecting and Testing the Cup for Leakage
Inspect the Sealing Edges:
• Slowly draw your finger along the entire length of the sealing edges, to check for roughness or
foreign material.
• Examine the sealing edges for cuts by bending the edge of the pad face towards you to create
a hump, turning the hand cup as necessary.
• If cuts or cracks are present in a sealing edge, a V-shaped gap will appear.
• Any pad that exhibits a gap or excessive roughness in a sealing edge must be replaced.
Leak-Test the Hand Cup:
• Attach the cup to a clean, smooth, scratch-free piece of glass or metal for approximately 2 hours.
• The red line on the plunger serves as a vacuum indicator:
▪ If the red line does not appear during the test period, the cup is usable.
▪ If the red line does appear, perform general maintenance and repeat the test.
• If the problem persists, check the TROUBLESHOOTING GUIDE (overleaf) to identify possible
causes and appropriate corrective actions.
• If these measures do not restore the cup to normal performance, contact the Wood's Powr-Grip
Customer Service department or an authorized dealer for assistance.
Based on product information at time of publication. Environmental conditions can affect product performance and longevity;
consult the product instructions on www.WPG.com or contact a Technical Sales Representative for more information.
GUIDE TO MAINTENANCE,
®
TROUBLESHOOTING AND REPAIR
General Maintenance
N4950, N5450, N6450,
N4300*, N5300*, N6300*
N4950TS, N5450CS
Metal Handle Hand Cups
* Some details may not apply to hand
cups with plastic plunger assemblies.
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