Wood’s Powr-Grip MRTARC811LDC - Manual (Page 16)

Rev 2.0/7-12 14 MRTA8-DC: #35076RC
Note: While the transmitter is activated, the transmission indicator light will flash green when
any button on the transmitter is pressed; otherwise, it will flash red (see B EFORE U SING THE L IFTER :
Preparing to Use the Optional Remote Control System preceding).
Positioning the Lifter on the Load
Make certain that the contact surfaces of the load and all vacuum pads are free of any
contaminates that could prevent the pads from sealing against the load (see MAINTENANCE:
V
ACUUM
P
AD
M
AINTENANCE
).
Center the lifter’s pad frame to within 2" [5 cm] of the load center, since off-center loading can
cause the load to tilt or rotate unexpectedly (see T
O
L
IFT AND
M
OVE THE
L
OAD
: About the Tilt
Linkage and T
O
R
OTATE THE
L
OAD
E
DGEWISE
to follow), and it may also damage the lifter. 9 Make
sure that all vacuum pads will fit entirely on the load’s contact surface (see SPECIFICATIONS:
Pad Spread) and that they will be loaded evenly while lifting (see SPECIFICATIONS: Per-Pad Load
Capacity). Then position the lifter on the load so that all pads are touching the contact surface.
Sealing the Pads against the Load
The apply/release switch is located on the movable control pendant. The movable control
pendant allows the vacuum controls to be moved away from the lifter, so that the operator can
control airflow at a distance equal to the length of the extension cord.
WARNING: Do not disconnect control pendant during lifter operation.
The movable control pendant is not intended to be disconnected during lifter operation.
Disconnecting the control pendant is likely to result in a load release and injury to the operator or
others nearby.
Turn the apply/release switch to the “APPLY” position (clockwise) to make sure the apply
function is activated.
WARNING: Keep apply/release switch in “APPLY” position throughout lift.
Alternatively, if the lifter is equipped with a Remote Control System, press an apply button on
either the radio transmitter or the lifter, to make sure the apply function is activated.
This energizes the vacuum pumps, causing air to be drawn immediately at the vacuum pads.
The low vacuum warning buzzer also sounds an alarm until the lifter attains sufficient vacuum to
lift the maximum load weight (see T
O
L
IFT AND
M
OVE THE
L
OAD
: Load Capacity and Lift Light to
follow). Press the lifter onto the load until all the pads seal against it. The lifter must remain in
the apply mode throughout the entire lift.
Note: If a vacuum pad has been lying against a hard object (as during shipping), it may be
slightly distorted. Although initially it may be difficult to apply the pad to a load, this condition
should correct itself with continued use.
9
The lifter is designed to handle the maximum load weight (see SPECIFICATIONS: Maximum Load Capacity) when the load’s
center of gravity is positioned within 2" [5 cm] of the pad frame’s center point. Occasional loading deviations are permissible,
provided that the operator can maintain control of the load at all times and that the load weight is low enough to avoid damaging
the lifter.