WPC N4100 Manual De Instrucciones

INSTRUCTIONS
Model N4100
Rev. 0.6/ 01-21 Instruction Sheet 32638 Hi Elevation
SPECIFICATIONS
Product Description
Hand cups with nominal diameter of 8" [20 cm] use vacuum to lift and
carry loads, as follows: A manual pump removes air from between
the rubber pad and the contact surface; a red line on the pump's
plunger serves as a vacuum indicator; 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.
Maximum Load Capacity
100 lbs [45 kg] per cup. Maximum Load Capacity includes a 3:1
safety factor and requires the following: attachment on clean,
smooth, nonporous flat surfaces; a minimum vacuum level of 13½"
Hg [-46 kPa]; and a friction coefficient 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.
Load and Environmental Conditions
Use the cup on clean, relatively smooth, nonporous surfaces, at
temperatures from 10° to 120° F [-12° to 49° C] and elevation up
to 12,000' [3,658 m]. Moisture or contaminants can reduce the slip
resistance of the cup. Contact an authorized dealer or visit
www.WPG.com for more information.
OPERATION
To Attach
1) Position the hand 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, vacuum is sufficient for lifting.
3) Check the plunger frequently to make sure the cup remains
securely attached. If the red line appears while lifting, set down the
load immediately and pump the plunger until the red line is hidden
again (see WARNINGS).
To Release
1) Set the load on a secure support.
2) Press the valve release lever 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).
P.O. Box 368 · 908 West Main | Laurel, MT 59044 U.S.A. | Toll Free: 1-800-548-7341 Phone: 1-406-628-8231 Fax: 1-406-628-8354
1. 49480T Vacuum Pad, 8" [20 cm] Diameter, Flat, Lipped (VPFS8L)
2. Air Filter*
3. 10002 Screw, 1/4-20 x 1/2"
4. Red Line
5. 90151AM Handle / Valve Assembly, Industrial Plastic
6. 90158AM Plunger Assembly, Industrial Plastic
7. Check Valve Retainer*
8. Check Valve*
9. Valve Release Lever
Not Shown
29335 Case, Gray, 8" [20 cm]
* Repair Kit 90160 for Industrial Plastic Cups (2, 7, 8 and Plunger Lube)
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 filter from the cup face.
2) Use a clean sponge or lint-free cloth to apply soapy water or
3) Wipe all residue from the cup face.
4) Allow the cup to dry and reinstall the air filter.
Inspection
Examine and test the cup regularly to make sure it does not exhibit
the following faults:
• 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 stiffness of rubber pad.
• air filter 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.
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
• Do not use the cup to support a person.
• Do not place the cup face against surfaces which could damage
• Avoid conditions that could cause the cup to slip or to disengage
• Do not use the cup to lift when the red line is visible. If the red line
• Do not allow anything to interfere with free movement of the
• Do not touch the valve release lever while lifting.
• Do not use harsh chemicals (such as solvents or gasoline) or
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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 filter recess.
Capacity or the effective capacity (see SPECIFICATIONS).
the sealing edges.
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.
reappears frequently, discontinue use and see Service.
plunger while the cup is attached.
unauthorized rubber cleaners and conditioners to clean the cup.
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