Wood’s Powr-Grip EL Series - Manual (Page 11)

Rev 0.2/12-12 9 ELWC, etc: #35003
INTENDED USE
L
OAD
C
HARACTERISTICS
WARNING: The Eazi Lifter is NOT intended for lifting hazardous materials, such
as explosives or radioactive substances.
The operator must verify that the Eazi Lifter is intended to handle each load, in accordance with
the following requirements:
• The load must not exceed the maximum allowable weight specified under Maximum Load
Capacity (see SPECIFICATIONS). If a greater load capacity is required, two Eazi Lifters may
be used in tandem.
• The maximum length, width and height of the load are not defined by fixed dimensions, but the
operator must verify that the load can be adequately controlled with guide straps or other
appropriate means.
WARNING: Do not attempt to lift rough or porous materials.
• Do not attempt to lift rough or porous materials, such as unfinished wood or rough-cut stone.
To determine whether a load is porous or too rough, first perform the V
ACUUM
T
EST
as directed
under MAINTENANCE. Once you have determined that the hand cups are capable of
maintaining vacuum on smooth, nonporous materials, perform the same test on the load in
question. If the hand cups' red-line vacuum indicators do not remain hidden, the load does
not possess the characteristics required for using the Eazi Lifter.
• The load's contact surface must be suitable for obtaining a friction coefficient of 1 with the
hand cup’s vacuum pads (see MAINTENANCE: V
ACUUM
P
AD
M
AINTENANCE
: Friction Coefficient),
as verified by a friction test. If necessary, contact Wood's Powr-Grip for help in conducting a
friction test.
• In order to avoid damaging the vacuum pads, the load's surface temperature must not exceed
the allowable Operating Temperatures (see SPECIFICATIONS). However, if such an
application cannot be avoided, Wood's Powr-Grip does offer a heat-resistant rubber
compound and other solutions which may enable you to lift loads with higher surface
temperatures. Contact Wood’s Powr-Grip or an authorized dealer for more information.
• While the minimum length and width of the load are determined by the Pad Spread (see
SPECIFICATIONS), the maximum length and width are determined by the allowable
overhang, or the amount of load material that can extend sideways beyond the vacuum pads
without breaking or otherwise being damaged.
The allowable overhang depends on the kind of load material being lifted, the thickness of the
material, and the angle at which it is handled (if any). Since materials such as glass, stone or
sheet metal each have different physical properties, the allowable overhang must be
evaluated separately for each type of load. If necessary, contact Wood’s Powr-Grip or an
authorized dealer for help in determining the recommended overhang in a specific situation.