Wood’s Powr-Grip P211047DC - Manual (Page 12)

Rev 12.0/12-12 10 P2-04-DCO: #35114:
T
O
L
IFT AND
M
OVE THE
L
OAD
Positioning the Lift Frame
WARNING: Lift frame must be oriented vertically to lift
load.
Never lift the load from a flat position with the lift frame latched
parallel to the load. Always disengage the tilt latch (see T
O
T
ILT THE
L OAD to follow) and raise the lift frame to a vertical orientation before attempting to lift.
Load Capacity and the Warning Lights
A lifter's Load Capacity is rated at a vacuum level of 16" Hg [-54 kPa] (see SPECIFICATIONS).
After the lifter has attained this level, the vacuum pumps turn off automatically, to conserve
battery energy. At the same time, the low vacuum warning lights turn off, to indicate that the
lifter is ready to lift the maximum load weight.
WARNING: Never attempt to lift load while red warning lights are illuminated.
Do not attempt to lift the load while the warning lights are illuminated; such an attempt could
result in a load release and possible injury to the operator.
Monitoring Vacuum Indicators
The low vacuum warning lights and the vacuum gauges must remain completely visible to the
operator, so that they can be monitored throughout the entire lift.
WARNING: Vacuum indicators must be visible to operator throughout entire
lift.
If the vacuum systems experience leakage while the lifter is attached to the load, the vacuum
pumps turn on automatically, as required to maintain sufficient vacuum for lifting the maximum
load weight. The low vacuum warning lights also turn on and remain illuminated while the
pumps are running, to signal the reduction in vacuum to the operator.
If a pump and a warning light turn on while you are lifting a load, make sure the corresponding
vacuum gauges show a vacuum level of 16" Hg [-54 kPa] or higher. If not, move away and stay
clear of the load until it can be lowered to the ground or a stable support.
WARNING: Stay clear of any suspended load while vacuum level is lower than
16" Hg [-54 kPa].
Discontinue lifter use until the cause of the vacuum loss can be determined. If a pump runs at
intervals of ten minutes or less while the lifter is attached to clean, smooth, nonporous materials,
the leakage is likely to be in the corresponding vacuum system. In this event, perform the
V
ACUUM
T
EST
(see MAINTENANCE) and inspect the vacuum pads for damage (see MAINTENANCE:
V
ACUUM
P
AD
M
AINTENANCE
: Inspection). If the vacuum loss cannot be remedied immediately,
perform inspection and maintenance as needed to identify and correct any deficiency before
resuming normal operation of the lifter.