Wood’s Powr-Grip PCFT2SA47 - Manual (Page 21)

Rev 0.0/11-13 19 P2-DC2: #35114
T
O
L
IFT AND
M
OVE THE
L
OAD
Lift frame must be oriented vertically to lift load (see T
O
T
ILT
).
Interpreting Warning Buzzers and Lift Lights
A lifter's Maximum Load Capacity is rated at a vacuum level of 16"
Hg [-54 kPa] (see SPECIFICATIONS). After both pad channels have
attained this level, the low vacuum warning buzzers turn
off and the
green vacuum lift lights turn on automatically, to signal that the lifter is
ready to lift the maximum load weight. As vacuum continues to increase,
the vacuum pumps also turn off, to conserve battery energy.
Never attempt to lift load while either warning buzzer is
sounding alarm.
Never attempt to lift load unless both lift lights are
illuminated.
If you attempt to lift the load while an alarm is sounding or before a green
lift light is illuminated, this could result in a load release and possible injury.
Monitoring Vacuum Indicators
The vacuum lift lights and vacuum gauges must remain completely visible to the operator, so
that they can be monitored throughout the entire lift.
Keep vacuum indicators visible throughout entire lift.
If the vacuum system of either pad channel experiences leakage while the lifter is attached to the
load, the corresponding vacuum pump turns on and off automatically, as required to maintain
sufficient vacuum. Normally, such intermittent cycling of a pump is no cause for alarm.
However, if vacuum decreases significantly for either pad channel, the lift light turns
off and the
low vacuum warning buzzer turns on , to warn the operator. If this occurs while you are lifting a
load, move away and stay clear of the load until it can be lowered to the ground or a stable
support.
Stay clear of any suspended load while any indicator warns of low vacuum.
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
: Pad 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.