WPG LJ6VHWBP User manual

1. 90510AM Handle, Metal
2. 90524AM Plunger Assembly with Audio Alarm (WBP)
3. 49486T Vacuum Pad, 8" [20 cm] Dia., Flat (G0695)
49506T Vacuum Pad, 9" [23 cm] Dia., Flat (G0725)
49586T Vacuum Pad, 10" [25 cm] Dia., Concave (G0750)
4. 90500 Valve Block with Release Lever & Guard
5. 51506 Valve Guard
6. Air Filter* **
7. 10002 Screw, 1/4-20 x 1/2"
8. Check Ball*
9. O-Ring*
10. 10008 Screw, 10-32 x 3/8"
11. Red Line
12. Check Valve Retainer**
13. Check Valve**
14. Release Tab
15. 90115 Handle, Vertical
16. 49416T Vacuum Pad, 6" [15 cm] Dia. (LJ6)
17. 10006 Screw, 10-32 x 5/16"
Not Shown
29312 Pad Cover, 6" [15 cm]
29334 Case, Black, 8" [20 cm]
29338 Case, Black, 9" [23 cm]
29342 Case, Black, 10"[25 cm]
64681 AAA Battery
INSTRUCTIONS
Models
LJ6VHWBP
N4950WBP
N5450WBP
N6450WBP
N4950WBP
N5450WBP
N6450WBP
LJ6VHWBP
SPECIFICATIONS
Product Description
Hand cups use vacuum to lift and carry loads, as follows: A manual pump
removes air from between the rubber pad and the contact surface; an audio alarm
and a red line on the pump's plunger serve as low vacuum indicators; a check
valve allows the user to repump the cup without removing it from the contact
surface; and a release mechanism allows the cup to disengage completely.
Model Pad Nominal Dia. Max. Load Capacity*
LJ6VHWBP LJ6 6" [15 cm] 70 lbs [32 kg]
N4950WBP G0695 8" [20 cm] 125 lbs [57 kg]
N5450WBP G0725 9" [23 cm] 150 lbs [68 kg]
N6450WBP G0750 10" [25 cm] 175 lbs [79 kg]
*Maximum Load Capacity includes a 3:1 safety factor and requires the following:
attachment on clean, smooth, nonporous at surfaces; a minimum vacuum level
of 17½" Hg [-59 kPa]; and a friction coe󰀩cient of 1. This rating is based on tests
of new hand cups attached to the upper, horizontal surface of static objects in
ideal conditions. Many factors can reduce the capacity, including: lifting a load
when the cup is attached to a vertical or inclined surface; or lifting a load that
applies leverage to the cup. See www.WPG.com for more information.
Low Vacuum Audio Alarm
Volume: 70 dBA at 36" [91 cm]
Power Source: one AAA size, 1.2-1.5-volt alkaline battery; automatic on/o󰀨
function
Load and Environmental Conditions
Use the cup on clean, relatively smooth, nonporous surfaces, at temperatures
from 10° to 120° Fahrenheit [-12° to 49° Celsius]. Moisture or contaminants
can reduce the slip resistance of the cup. Excessive exposure to moisture can
also damage the audio alarm or reduce its life. The red-line indicator and audio
alarm may not perform reliably at elevations above 5000 feet [1524 meters]; see
MAINTENANCE: Service.
OPERATION
To Test Audio Alarm
Prior to using the hand cup, make sure the audio alarm is functioning correctly
and can be heard clearly over ambient sound in the work environment: While
leaving the sound emission holes uncovered, depress the plunger slightly. The
audio alarm should sound; if not, see MAINTENANCE: Service.
To Attach Hand Cup
1) Position the cup on the contact surface so the red line will be visible if it
should appear while lifting the load. CAUTION: Test the cup for staining or
deformation of load surfaces with light colors or soft coatings.
2) Pump the plunger until the cup attaches completely. When the red line is
hidden and the audio alarm is silent, vacuum is su󰀩cient for lifting.
3) Check the plunger frequently to make sure the cup remains securely
attached. If the red line appears or the audio alarm sounds while lifting, set
down the load immediately and pump the plunger until the red line is hidden
and the audio alarm is silent again (see WARNINGS).
To Release Hand Cup
1) Set the load on a secure support.
2) Pull one of the release tabs (on 6" [153 mm] cups) or press the valve
release lever (on other cups) until the cup disengages completely.
CAUTION: Remove the cup when not in use.
MAINTENANCE
Service
Since aging and wear reduce the capacity of the rubber pad, it should be replaced
at least once every 2 years or whenever damage is discovered (see Inspection).
If the audio alarm does not function normally (see OPERATION), make sure a
working battery is installed correctly (see TO REPLACE BATTERY, overleaf). If
the condition persists, contact an authorized dealer or visit www.WPG.com for
assistance.
If the hand cup does not function normally, the cup face may be dirty or the cup
may require service. First clean the cup face according to the directions to follow.
If the condition persists, contact an authorized dealer or visit www.WPG.com for
assistance.
Cleaning
1) Remove the air lter from the cup face.
2) Use a clean sponge or lint-free cloth to apply soapy water or another mild
cleanser to the cup face; see WARNINGS and www.WPG.com for more
information. CAUTION: To prevent liquid from contaminating the pump,
hold the cup face-down or cover the suction hole in the lter recess.
3) Wipe all residue from the cup face.
4) Allow the cup to dry and reinstall the air lter.
Inspection
Examine and test the cup regularly to make sure it does not exhibit the following
faults:
• failure of audio alarm to function correctly (see OPERATION).
• corrosion or other indications of battery leakage inside battery chamber
(see TO REPLACE BATTERY, overleaf).
• cuts or damage to sealing edges of rubber pad.
• cracks or dents in handle or pump.
• reappearance of red line soon after attaching cup.
• sluggishness or dramatic changes in pump action.
• excessive glaze or sti󰀨ness of rubber pad.
• air lter missing from cup face.
Correct any faults before using the cup (see Service).
Storage
Store the cup in clean, dry condition within its protective carrying case. If the
cup is used once a month or less often, remove the battery (see TO REPLACE
BATTERY, overleaf) and store it separately, to prevent corrosion.
WARNINGS
Failure to observe WARNINGS could damage the hand cup or the load, or cause
injury to the user.
• Do not use the cup to lift loads that exceed the Maximum Load Capacity or
the e󰀨ective capacity (see SPECIFICATIONS).
• Do not use the cup to support a person.
• Do not place the cup 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 cup face or
contact surface; applying the cup to porous materials; or applying pressure
against the cup edge.
• Do not use the cup to lift when the red line is visible or the audio alarm
is sounding. If the red line reappears or the audio alarm sounds frequently,
discontinue use and see MAINTENANCE: Service.
• Do not allow anything to interfere with free movement of the plunger while
the cup is attached.
• Do not touch the release tabs (on 6" [153 mm] cups) or the valve release
lever (on other cups) while lifting.
• Do not attach 10" [254 mm] diameter cups to thin, fragile materials.
• Do not use harsh chemicals (such as solvents or gasoline) or unauthorized
rubber cleaners and conditioners to clean the cup.
• Avoid contact with battery leaks because they contain chemicals that could
damage eyes, skin, clothing or the plunger assembly.
• Do not expose a battery to excessive heat (see SPECIFICATIONS:
Environmental Conditions), because this could cause the battery to explode.
Rev. 0.3 / 06-19 Instruction Sheet 32640 LVAA
P.O. Box 368 · 908 West Main | Laurel, MT 59044 U.S.A. | Toll Free: 1-800-548-7341 Phone: [phone] Fax: [phone]
* Repair Kit 90504 for Metal Cups (6, 8, 9 and Plunger Lube)
** Repair Kit 90160 for LJ6VH Cups (6, 12, 13 and Plunger Lube)

1. Plunger Assembly with Audio Alarm (WBP)
2. Plunger Cap with Sound Emission Holes
3. AAA Battery
4. Red Line
5. U-Cup
PLUNGER
ASSEMBLY WITH
LOW VACUUM
AUDIO ALARM
See overleaf for SPECIFICATIONS, OPERATION, MAINTENANCE and
WARNINGS.
TO INSTALL PLUNGER ASSEMBLY
Grasp the head of the old 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.
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).
Carefully examine the inside of the handle for
scratches and contaminants, using a ashlight
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 old lubricant
remains inside the handle.
Using a soft swab, apply a ring of new 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; contact Wood's
Powr-Grip Customer Service to order this. 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, turning it to
spread the lubricant thoroughly on the U-cup.
Then leak-test the hand cup as directed in the
following section.
TO LEAK-TEST HAND CUP
Attach the hand cup to a clean, smooth, scratch-
free piece of glass or metal for approximately 2 hours. The audio alarm and the
red line on the plunger serve as low vacuum indicators: If the audio alarm does
not sound and red line does not appear during the test period, the cup is usable;
if the audio alarm does sound or the red line does appear, discontinue use until
the problem is corrected. See MAINTENANCE: Service (overleaf) for more
instructions.
TO REPLACE BATTERY
Test the audio alarm regularly (see OPERATION: To Test Audio Alarm, overleaf)
and replace the battery as necessary. CAUTION: Follow the battery manufacturer’s
instructions for correct handling, storage and disposal of batteries.
1) Hold the plunger and turn the plunger cap counter-clockwise to loosen it.
2) Remove the plunger cap and the old battery.
3) Install a new battery in the battery chamber, making sure to orient the positive
end (+) toward the red line and the negative end (-) toward the plunger cap.
CAUTION: Do not reverse battery polarity, because the audio alarm will not
function.
4) Reinstall the plunger cap, turning clockwise to tighten it securely.
LIMITED WARRANTY
Wood’s Powr-Grip vacuum cups are carefully constructed, thoroughly inspected
at various stages of production, and individually tested. They are warranted to
be free from defects in workmanship and materials for one year from the date of
purchase. If a problem develops during the warranty period, return the complete
product as directed below. If inspection shows that the problem is due to defective
workmanship or materials, the product will be repaired or replaced without charge.
WARRANTY DOES NOT APPLY WHEN:
Rubber portions have been cut or scratched during use.
Repairs are required due to abnormal wear and tear.
The product has been abused, misused or neglected.
Alterations have been made to the product.
A problem not covered under warranty will be corrected automatically, unless the
customer includes a written request for notication of costs prior to repair. Otherwise
the customer assumes all responsibility for repair costs and agrees to receive the
repaired product on a C.O.D. basis.
TO OBTAIN WARRANTY SERVICE
For purchases in North America:
• Please include your name, address and phone number;
• Indicate WARRANTY RETURN;
• Ship product–prepaid–DIRECTLY TO MANUFACTURER at:
Wood’s Powr-Grip Co., Inc.
908 West Main
Laurel, MT 59044 U.S.A.
For purchases in all other localities:
• Return product to point of purchase.
Purchased From
Date Purchased
Model No.
Serial No. (if present)
RETAIN THIS INFORMATION FOR YOUR RECORDS.
Installation
Limited Warranty