Wood’s Powr-Grip VL411LDC - Manual (Page 3)

Rev 17.0/12-12 1 VL411LDC: #35162
SPECIFICATIONS
Model Number: VL411LDC
Description: Designed for use with a crane or other hoisting equipment, the VL411LDC lifter
employs vacuum to hold a load for lifting in the upright orientation.
Power Source: 12 volts DC, 10 amps (with Thomas pump) or 3 amps (with Dynaflo pump)
Battery Capacity: 7 amp-hours
Vacuum Pads: Four 11" [28 cm] nominal diameter, lipped (Model G3370), standard rubber,
spring-mounted (¼" [7 mm] travel), with #60 filter screen
Pad Spread: 23½" x 58" [597 mm x 1474 mm] to outer edges
Load Capacity: (rated at 16" Hg [-54 kPa] on clean, smooth, nonporous flat surfaces 1 )
Per-Pad: 175 lbs [80 kg]
Maximum: 700 lbs [320 kg]
Lifter Weight: 60 lbs [27 kg]
Vacuum Pump: Diaphragm type, 1 SCFM [28 liters/minute] nominal airflow
Vacuum Reserve Tank: Vacuum reservoir helps prevent immediate vacuum loss in case of power failure
and extends battery life by reducing pump cycles required to maintain vacuum.
Vacuum Gauge: Dial gauge indicates current vacuum level in positive inches of Hg and negative
kPa.
Low Vacuum Warning Light: Red light is energized until vacuum level is sufficient to lift maximum load
weight (higher than 16" Hg [-54 kPa]) and whenever vacuum loss causes pump
to re-engage.
Options: See appendix for instructions about optional features.
Operating Elevation: Maximum = 6000 feet [1828 meters]
Operating Temperatures: 32° to 104° F [0° to 40° C]
Service Life:
This lifter is designed to have a service life of at least 20,000 lifting cycles, when
used and maintained as intended. Vacuum pads, filter elements and other
wear-out items are excluded; see MAINTENANCE and REPLACEMENT PARTS
LIST for more information. For the D ISPOSAL OF THE L IFTER after its service life,
see INTENDED USE.
ASME Standard BTH-1: Design Category "B", Service Class "0" (see www.powrgrip.com for more
information)
Wiring Diagram: The following wiring diagrams are attached for reference in servicing the lifter
or trouble-shooting a deficiency: 705-W01 [W01] , 705-W01 [D-W01]
!!-CE-!! Note: This symbol appears in the INSTRUCTIONS manual only when requirements of a CE Standard are
different from requirements of other standards that also apply to this vacuum lifter. CE requirements are
mandatory in geographical areas where CE Standards apply, but may be optional in other locations.
1
Load Capacity is based on a friction coefficient of 1; see MAINTENANCE: V ACUUM P AD M AINTENANCE : Friction Coefficient for
additional information.