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TROUBLESHOOTING GUIDE

PROBLEM

CAUSE

CORRECTION

Slow leakage

Cuts on sealing edge

Replace vacuum pad.

Dirt or lint inside pump

Wipe inside of handle with a soft cloth. Check for 

contamination on U-cup or button.

Dry pump

Apply a light coating of plunger lube inside handle.

Contaminated pad face

Clean vacuum pad.

Severe leakage

Severe contamination

Clean plunger assembly and inside of handle.

Gouges or cuts on sealing 

edges

Replace vacuum pad.

Jammed or 

sluggish pump

Obstructed valve inlet

Remove obstruction from suction inlet (behind air filter) 

or from space between handle and pad.

Severe contamination

Clean plunger assembly and inside of handle.

Dented or cracked handle

Replace handle.

Bent or cracked plunger

Replace plunger assembly.

Pad slips when 

attached

Contaminated load surface

Wipe surface clean. If necessary, wash and allow to dry.

Contaminated pad face

Clean vacuum pad.

Slick or worn 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 directed in Disassembly and 

Assembly sections.

PARTS AND ASSEMBLY

  1 

90115

 

Handle, Vertical

  2  61130RP  Handle, Angle Grip

  3 

90520AM

  Plunger Assembly, Metal

 

90524AM

  Plunger Assembly, Metal with Audio Alarm (WBP)

  4 

90154AM

  Plunger Assembly, Industrial-Grade Plastic

  5 

49416T

 

Vacuum Pad, 6" (15 cm) Dia., Concave (LJ6)

  6 

49386T

 

Vacuum Pad, 6" (15 cm) Dia., Concave (TL6)

  7   

Air Filter*

  8   

Red Line

  9   

Check Valve Retainer*

10   

Check Valve*

11   

Release Tab

12 

10006

 

Screws, 10-32 x 5/16" (4)

13 

10014

 

Screws, 10-32 x 7/16" (4)

14   

Button and U-Cup

 

 

Not Shown

 

29312

 

Pad Cover, 6" (15 cm)

 

 

Plunger Lube*

*Repair Kit #

90160

4

2

6

7

8

9

10

11

13

14

3

8

9

10

5

7

1

11

12

14

 

Summary of Contents for LJ6VH

Page 1: ... 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 Wipe all residue from the pad face and allow the cup to dry Reinstall the air filter Inspecting and Testing the Cup for Leakage Inspe...

Page 2: ...d surface Wipe surface clean If necessary wash and allow to dry Contaminated pad face Clean vacuum pad Slick or worn 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 directed in Disassembly and Assembly s...

Page 3: ... Check Valve and Retainer Carefully examine the inside of the handle for scratches and contaminants using a flashlight Scratches between the midpoint 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 Drop the check valve inside the handle so that it lies flat against the closed...

Page 4: ...y Do not place the vacuum pad against surfaces which could damage the sealing edge 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 attaching 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 freque...

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