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WARNINGS

Wood’s Powr-Grip has taken great care to produce the most reliable vacuum-operated 

handling device available. Nevertheless, mistreatment or misuse may damage a hand 

cup or otherwise create conditions which could cause the hand cup to fail, resulting 

in an unexpected release. The following warnings are offered to help users avoid most 

potential hazards.

Failure to observe WARNINGS could damage 

the cup or the load, or cause injury to the user.

• Do not use the cup with loads that exceed the load capacity.

• Do not use the cup to support a person.

• Do not place the pad face against surfaces which could damage the sealing edges.

• Avoid conditions that could cause the cup to slip or to disengage prematurely, such as:

contaminants, cuts or scratches in the pad face or load surface; applying the cup to

porous materials; or applying pressure against the pad edge.

• Do not use the cup to lift when the red line is visible. If the red line reappears frequently,

discontinue use and follow the instructions for general maintenance and testing.

• Do not allow anything to interfere with free movement of the plunger while the cup is

attached. This could prevent the red line from warning the user of vacuum loss.

• Do not touch the valve release lever while lifting.

• Do not attach 10" [25 cm] diameter cups (models N6000 and N6000NBP) to thin,

fragile materials.

• Do not use harsh chemicals (such as solvents or gasoline) or unauthorized rubber

cleaners and conditioners to clean the cup. See www.WPG.com for more information.

Summary of Contents for N4000

Page 1: ...WARNINGS To prevent liquid from contaminating the pump during cleaning hold the cup face down or cover the suction inlet in the filter recess For 8 20 cm pads be careful not to dampen the felt strip at the pad s edge Wipe all residue from the pad face and allow the cup to dry Then reinstall the air filter Inspecting and Testing the Cup for Leakage ToINSPECTTHESEALINGEDGESofthevacuumpadforroughness...

Page 2: ...hed Contaminated load surface Wipe surface clean If necessary wash and allow to dry Contaminated pad face Clean vacuum pad Excessive glaze or wear on pad face Replace vacuum pad at least once every two years More than 10 strokes needed to apply Any of the above Perform general maintenance Dirt or lubricant on check valve Remove clean and reinstall plunger assembly retainer and check valve as direc...

Page 3: ... cause leakage Scratches near the open end of the handle rarely present a problem Make sure that no lubricant remains inside the handle Drop the check valve inside the handle so that it lays 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 Va...

Page 4: ...that could cause the cup to slip or to disengage prematurely such as contaminants cuts or scratches in the pad face or load surface applying the cup to porous materials or applying pressure against the pad edge Do not use the cup to lift when the red line is visible If the red line reappears frequently discontinue use and follow the instructions for general maintenance and testing Do not allow any...

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