Wood’s Powr-Grip MRTALPCH611LDC - Manual (Page 18)

Rev 8.0/6-13 16 MRTALPCH6-DC: #35054
T
O
L
IFT AND
M
OVE THE
L
OAD
Positioning the Lift Bar
WARNING: Lift bar must be oriented vertically to lift
load.
Never lift the load from a flat position with the lift bar latched parallel
to the load. Always disengage the tilt latch (see T
O
T
ILT THE
L
OAD
to
follow) and raise the lift bar to a vertical orientation before attempting to lift.
Interpreting the Warning Buzzer and Lift Light
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 pump and the low vacuum warning buzzer turn
off automatically, to conserve battery energy. At the same time, the green vacuum lift light
turns on , to signal that the lifter is ready to lift the maximum load weight.
WARNING: Never attempt to lift load unless green lift light is illuminated.
Do not attempt to lift the load unless the lift light is illuminated; such an attempt could result in a
load release and possible injury to the operator.
Monitoring Vacuum Indicators
The vacuum lift light and both 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 system experiences leakage while the lifter is attached to the load, the vacuum
pump turns on automatically, as required to maintain sufficient vacuum for lifting the maximum
load weight. In addition, the lift light turns off while the pump is running, to signal the
reduction in vacuum to the operator.
If the pump turns on and lift light turns off while you are lifting a load, make sure both 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 the 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 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.