Wood’s Powr-Grip PT4FS10TAIR - Manual (Page 15)

Rev 2.0/12-12 13 PT4HV11FAIR: #35141
Controlling the Lifter and Load
When the vacuum gauge shows 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 handle 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 tilted as desired (see T
O
T
ILT THE
L
OAD
to
follow).
WARNING: Never allow any pad shutoff to be opened or closed while lifting.
Opening or closing a pad shutoff while the lifter is supporting a load could result in the release of
the load and possible injury to the operator or others. The operator must take all appropriate
measures to prevent any person or object from accidentally moving the lever of a pad shutoff
during the lift.
In Case of Power Failure
The lifter is equipped with a vacuum reserve tank, 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 system (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
T
ILT THE
L
OAD
CAUTION: Make sure load is positioned correctly on lifter (see T
O
A
PPLY
); unbalanced
loads may damage lifter.
Remember that the load requires more vertical space when tilted
to the upright position, as well as more horizontal space when
tilted to the flat position. Make sure there is sufficient clearance
for the load to tilt without contacting the operator or any nearby
objects. The tilt control valve controls the powered tilt motion:
To tilt the load towards the flat position, push the lever on the
control valve upward ; to tilt the load towards the upright position,
push the lever downward . Releasing the lever locks the load in
any position within the 90° range of tilt movement.