Owner's manual

ManualsBrandsWood’s Powr-Grip ManualsHoistN4850LLM

Rev. 0.0 / 09-11 32622 Instruction Sheet Premium NS

INSTRUCTIONS

Model N4850LLM

Model N4850LLMWBP

Model N4800LLMHE

N4850LLM

N4850LLMWBP

N4800LLMHE

1. 90351 Handle / Valve Assembly

2. 90520 Plunger Assembly, Metal

90524 Plunger Assembly with Audio Alarm (WBP)

90158 Plunger Assembly, High-Elevation

3. 49478T Vacuum Pad, 8" Dia., Flat, Lipped (VPFS8L)

4. 60024 Air Filter

5. 10002 Screw, 1/4-20 x 1/2"

6. Red Line

7. 61151 Check Valve Retainer

8. 51100 Check Valve

9. Valve Release Lever

Not Shown

29333 Case, Aqua, 8"

64681 AAA Battery (if applicable)

Products are manufactured under an

ISO 9001 quality management system

SPECIFICATIONS

Product Description

Hand cups with a 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 and an audio alarm (if applicable) on the

pump's plunger serve as 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 Max. Elevation Max. Load Capacity* Min. Vacuum Level

N4850LLM 5000' [1524 m] 125 lbs [57 kg] 17½" Hg [-59 kPa]

N4850LLMWBP 5000' [1524 m] 125 lbs [57 kg] 17½" Hg [-59 kPa]

N4800LLMHE 12,000' [3658 m] 100 lbs [45 kg] 13½" Hg [-46 kPa]

*Maximum Load Capacity includes a 3:1 safety factor and requires the

following: attachment on clean, smooth, nonporous at surfaces; the minimum

vacuum level listed above; and a friction coef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.powrgrip.com for more

information.

Low Vacuum Audio Alarm (if applicable)

Volume: 70 dBA at 36" [91 cm]

Power Source: one AAA size, 1.2-1.5-volt alkaline battery; automatic on/off

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. The red-line indicator may not

perform reliably at elevations above the Maximum Elevation listed above; see

MAINTENANCE: Service.

OPERATION

To Test Audio Alarm (if applicable)

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

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 sufcient for lifting.

3) Check the plunger frequently to make sure the cup remains securely

attached. If the red line appears or (if applicable) 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

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).

If the hand cup features an audio alarm but it 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.powrgrip.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.

powrgrip.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.powrgrip.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:

• 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 lter missing from cup face.

• if applicable, failure of audio alarm to function correctly (see OPERATION).

• if applicable, corrosion or other indications of battery leakage inside battery

chamber (see TO REPLACE BATTERY, overleaf).

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 features an audio alarm and 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 effective 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. If the red line

reappears frequently or (if applicable) 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 valve release lever while lifting.

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

rubber cleaners and conditioners to clean the cup.

• If applicable, avoid contact with battery leaks because they contain

chemicals that could damage eyes, skin, clothing or the plunger assembly.

• If applicable, do not expose a battery to excessive heat (see

SPECIFICATIONS: Environmental Conditions), because this could cause

the battery to explode.

908 West Main - P.O. Box 368 800.548.7341 406.628.8354 (fax)

Laurel, MT 59044 U.S.A. 406.628.8231 www.powrgrip.com

Summary of content (2 pages)

PAGE 1
N4850LLM N4850LLMWBP N4800LLMHE 90351 90520 90524 90158 3. 49478T 4. 60024 5. 10002 6. 7. 61151 8. 51100 9. Model N4850LLM Model N4850LLMWBP Model N4800LLMHE Rev. 0.0 / 09-11 32622 Instruction Sheet Premium NS Not Shown 29333 64681 Handle / Valve Assembly Plunger Assembly, Metal Plunger Assembly with Audio Alarm (WBP) Plunger Assembly, High-Elevation Vacuum Pad, 8" Dia.
PAGE 2
PLUNGER ASSEMBLY WITH LOW VACUUM AUDIO ALARM 1. Plunger Assembly with Audio Alarm (WBP) 2. Plunger Cap with Sound Emission Holes 3. AAA Battery 4. Red Line 5. U-Cup Installation Limited Warranty 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, it is best to return the cup to the factory for repair.