Wood’s Powr-Grip P211047DC - Manual (Page 13)

Rev 12.0/12-12 11 P2-04-DCO: #35114:
Controlling the Lifter and Load
When the vacuum indicators show that the lifter is ready, use the hoisting equipment to raise the
lifter and load as needed to clear any obstacles in their path. Use the control handles to keep
the lifter and load in the desired orientation while they are suspended from the crane. Once
sufficient clearance is established, the load can be rotated or tilted as desired (see T
O
R
OTATE THE
L
OAD
E
DGEWISE
or T
O
T
ILT THE
L
OAD
to follow).
In Case of Power Failure
The lifter is equipped with vacuum reserve tanks, designed to maintain vacuum temporarily in
case of a failure at the lifter's power source.
WARNING: Stay clear of any suspended load in the event of a power failure.
Although the lifter is designed to support the load for at least 5 minutes without power, this
depends on many factors, including the condition of the load and the lifter’s vacuum systems
(see INTENDED USE: L
OAD
C
HARACTERISTICS
and MAINTENANCE: V
ACUUM
P
AD
M
AINTENANCE
, V
ACUUM
T
EST
). If a power failure occurs, keep all personnel clear of the suspended load until it can
safely be placed on the ground or a stable support. Correct any deficiency before resuming
normal operation of the lifter.
T
O
R
OTATE THE
L
OAD
E
DGEWISE
WARNING: Never disengage both the rotation latch and the tilt latches at the
same time.
This lifter is not designed for rotation and tilt functions to be used at the same time.
Disengaging the rotation and tilt latches simultaneously could cause uncontrolled and
unpredictable load movement, potentially resulting in load damage or injury to the operator.
CAUTION: Rotation function only works when pad channels are latched in vertical
orientation.
Make sure the pad channels are latched in the vertical position of the tilt range (see T
O
T
ILT THE
L
OAD
to follow), as shown in the OPERATING FEATURES illustration, because the rotation function
is not designed to work in any other position.
WARNING: Make sure load is positioned correctly on lifter (see T
O
A
PPLY
);
unbalanced loads may rotate unexpectedly when latch is
disengaged.
Remember that the load is longer in its diagonal dimensions than in its side
dimensions. Make sure there is sufficient clearance for the load to rotate
without contacting the operator or any nearby objects. Maintain a firm grip
on one control handle to keep the load under control at all times. Pull the
rotation release lever to disengage the rotation latch, and rotate the load to
the desired position. To stop the load’s motion automatically at each
quarter turn, simply let go of the rotation release lever immediately after
initiating the rotation, so that the rotation latch engages at the next stop.
Whenever rotation is not required, keep the rotation latch engaged, to
prevent accidental damage to the load and possible injury to the operator.