WPC FLEXR Series User manual

Rev 6.2/4-21 FLEXR(L)HV11AC: #350351
INTENDED FOR USE BY SKILLED
PROFESSIONALS • READ AND
UNDERSTAND BEFORE OPERATING
OPERATING
INSTRUCTIONS 908 W. Main • P.O. Box 368
Laurel, MT USA 59044
800-548-7341 (phone)
406-628-8231 (phone)
406-628-8354 (fax)
www.WPG.com
Record serial number in blank space above (to locate, see serial
label on the product).
FLEXR(L) SERIES
FLAT LIFTER,
AC-VOLTAGE
Model numbers: FLEXR4HV11AC,
FLEXR6HV11AC, FLEXRL6HV11AC (shown)
KEEP FOR FUTURE REFERENCE

FLEXR(L)HV11AC: #35035 Rev 6.2/4-212

Rev 6.2/4-21 FLEXR(L)HV11AC: #350351
SPECIFICATIONS .....................................................................................3
SAFETY...................................................................................................5
OPERATING FEATURES............................................................................6
ASSEMBLY..............................................................................................7
INTENDED USE .......................................................................................9
LOAD CHARACTERISTICS.................................................................................9
OPERATING ENVIRONMENT..........................................................................10
DISPOSAL OF THE LIFTER .............................................................................10
OPERATION..........................................................................................11
BEFORE USING THE LIFTER...........................................................................11
Taking Safety Precautions .................................................................................................11
Performing Inspections and Tests .....................................................................................11
TOUSE THE OPTIONAL PAD SHUTOFFS ..........................................................12
TOADJUST PAD POSITIONS..........................................................................13
Positioning Pad Arms ........................................................................................................13
Positioning Pad Mounts ....................................................................................................14
TOADJUST THE CONTROL HANDLES ..............................................................14
TOATTACH THE PADS TO ALOAD ..................................................................15
Generating Airflow............................................................................................................15
Positioning the Lifter on the Load.....................................................................................15
Sealing the Pads on the Load............................................................................................16
Reading the Vacuum Gauge..............................................................................................16
TOLIFT AND MOVE THE LOAD......................................................................17
Interpreting the Lift Light..................................................................................................17
Watching Vacuum Indicators ............................................................................................17
Controlling the Lifter and Load .........................................................................................18
In Case of a Power Failure.................................................................................................18
TORELEASE THE PADS FROM THE LOAD .........................................................19
AFTER USING THE LIFTER.............................................................................19
Storing the Lifter ...............................................................................................................20
Transporting the Lifter ......................................................................................................20
INSPECTIONS AND TESTS......................................................................21
TABLE OF CONTENTS

FLEXR(L)HV11AC: #35035 Rev 6.2/4-212
INSPECTION SCHEDULE ................................................................................21
TESTING ...................................................................................................22
Lifter/Load Compatibility Test...........................................................................................22
Operational Tests ..............................................................................................................23
Vacuum Test......................................................................................................................23
Rated Load Test.................................................................................................................24
MAINTENANCE ....................................................................................25
VACUUM PAD MAINTENANCE.......................................................................25
Pad Inspection ..................................................................................................................25
Pad Cleaning .....................................................................................................................26
REPLACEMENT PARTS...........................................................................27
LIMITED WARRANTY ............................................................................29
TOOBTAIN REPAIRS OR WARRANTY SERVICE...................................................29
TABLE OF CONTENTS

Product
Description
Designed for use with hoisting equipment, FLEXR(L)-AC lifters support loads using vacuum for lifting in
the flat orientation.
Model Number FLEXR4HV11AC FLEXR6HV11AC FLEXRL6HV11AC
Pad Spread
(to outer edges) (w/4 pads — standard) (w/6 pads — standard) (w/6 pads — long)
Minimum 23" x 54¼"
[58 cm x 138 cm]
23" x 54¼"
[58 cm x 138 cm]
23" x 61"
[58 cm x 155 cm]
Maximum 41" x 70¼"
[104 cm x 178 cm]
41" x 70¼"
[104 cm x 178 cm]
41" x 105"
[104 cm x 267 cm]
Maximum Load
Capacity1
1...... The Maximum Load Capacity is rated at a vacuum of 16" Hg [-54 kPa] on clean, smooth, nonporous flat surfaces. Pad compound, load rigidity, strength,
surface conditions, overhang, angle, center of gravity and temperature can also affect the lifting capacity. A “qualified person” should evaluate the effective
lifting capacity for each use (see definition under “Rated Load Test”).
Per pad: 300 lbs [136.5 kg]
Total: 1200 [545 kg]
Per pad: 300 lbs [136.5 kg]
Total: 1500 [680 kg]
Per pad: 200 lbs [91 kg]
Total: 1200 [545 kg]
Lifter
Weight 140 lbs [64 kg] 165 lbs [75 kg] 185 lbs [84 kg]
Vacuum
Pads 10" [25 cm] nominal diameter, lipped (Model HV11), standard rubber2
2...... Available with other rubber compounds for special purposes (see www.wpg.com).
Power
Source See serial label for specific AC voltage, frequency and amperage.
Product
Options
Available with Spring-Shaft Pad Mounts.
Available with Individual Pad Shutoffs.
See separate instructions about other options.
Operating
Elevation Up to 6,000' [1,828 m]
Operating
Temperatures 32° — 104° F [0° — 40° C]
Service
Life 20,000 lifting cycles, when used and maintained as intended3
3...... Vacuum pads, filter elements and other wear-out items are excluded.
ASME Standard
BTH-1 Design Category "B", Service Class "0" (see www.wpg.com for more information)
Troubleshooting
Guide4
4...... To view this guide, click the link at right. Additionally, you can search for your lifter's Model Number at www.wpg.com and select the “Troubleshooting” link
on the product page.
TST-016_GENERIC_LEAK_TEST_rev_2014-086
Rev 6.2/4-21 FLEXR(L)HV11AC: #350353
!!–CE–!! This symbol appears only when a CE Standard is different from other applicable standards. CE requirements are mandatory
in the European Union, but may be optional elsewhere.
SPECIFICATIONS

FLEXR(L)HV11AC: #35035 Rev 6.2/4-214
Note: A standard FLEXR6HV11AC is shown.
SPECIFICATIONS

Rev 6.2/4-21 FLEXR(L)HV11AC: #350355
SAFETY
Wear personal protective
equipment that is appropriate for
the load material. Follow trade
association guidelines.
Do not remove or obscure safety
labels.
Do not make any modifications to
the lifter (see “LIMITED
WARRANTY”).
Use the lifter only in an approved
“OPERATING ENVIRONMENT”(see
“INTENDED USE”).
Do not use a lifter that is damaged,
malfunctioning, or missing parts.
Do not use a lifter if the sealing
edge of any vacuum pad is cut or
otherwise damaged.
Do not use a lifter to lift cracked or
broken glass.
Do not exceed the Maximum
Load Capacity or lift loads the
lifter is not designed for (see
“INTENDED USE”).
Do not use a lifter if the
Maximum Load Capacity or
any safety label appears to be
missing or obscured.
Make sure the contact surfaces of
the load and vacuum padsare clean
before attaching the lifter (see
“MAINTENANCE”).
Position the vacuum pads correctly
on the load before lifting (see
“OPERATION: Positioning the Lifter
on the Load”).
Do not lift a load if any vacuum
indicator shows inadequate
vacuum.
Keep unauthorized personnel away
from the lifter, to avoid injury in
case of an unintended load release.
Do not touch the vacuum release
controls during a lift.
Do not allow people to ride on the
lifter or the load.
Do not lift a load higher than
necessary or leave suspended loads
unattended.
Do not position a loaded or
unloaded lifter over people.
Before servicing a powered lifter,
place the power control in the
inactive position and, when
possible, disconnect the power source.

Rev 6.2/4-21 FLEXR(L)HV11AC: #350356
Features shown here are underlined on their first appearance in each section following.
1 LIFT POINT 2CONTROLHANDLE 3 SLIDING PAD ARM
4PADFRAME 5 VACUUM PAD with MOVABLE MOUNT 6 VACUUM RESERVE TANK
7 AIR FILTER 8 Enclosure with VACUUM SWITCH 9 POWER SWITCH
10 VACUUM LIFT LIGHT 11 VACUUM GAUGE 12 VACUUM CONTROL VALVE
13 VACUUM PUMP
Note: A standard FLEXR6HV11AC is shown. Although some of the following photos do not show
this specific lifter, they all illustrate how this kind of lifter functions.
For information about specific parts, see “REPLACEMENT PARTS” and/or any separate
instructions for Product Options.
OPERATING FEATURES

Rev 6.2/4-21 FLEXR(L)HV11AC: #350357
1) Remove all shipping materials and save them with the shipping container for future use.
2)
Make sure power source has ground fault circuit
interrupter.
Connect the power cable:
2.1) Wire the female
connector provided
to an appropriate power source, as indicated on the label attached.
Wiring must be done by qualified personnel, taking all appropriate safety
precautions.
2.2) Route the power cable so that it does not become damaged during operation.
2.3)
2A 2B
Insert the power cable’s male
connector into the female
connector and twist to secure
them together (fig. 2A-B).
3) Suspend the lifter from appropriate hoisting equipment:
3.1)
Select a crane and/or hoist rated for the Maximum Load Capacity plus the
Lifter Weight.
Note: Any lifter use must comply with all statutory or regulatory standards for
hoisting equipment in your region.
3.2)
3C 3D 3E
Attach the hoisting hook to
the lift point (fig. 3C).
Make sure hook
has restraining
latch (circled in fig. 3D).
3.3) Use the hoisting equipment to remove the lifter from the shipping container. Avoid
damaging the vacuum pads.
ASSEMBLY

FLEXR(L)HV11AC: #35035 Rev 6.2/4-218
4)
4A
Remove the pad covers (fig. 4A) and save them for future use.
5)
5A 5B
Position the adjustable control
handles for optimal load
handling: Remove the
cotterless hitch pins (fig. 5A),
move both handles to suitable
positions where pin holes
align, and reinsert both pins
(fig. 5B).
6) Perform tests as required under “TESTING”.
ASSEMBLY