Wood’s Powr-Grip MT10FS10TAC - Manual (Page 13)

Rev 25.0/9-13 11 MT-HV11AC: #35089
WARNING: Closing any pad shutoff reduces lifting capacity.
To activate a pad, open the pad shutoff (place valve lever parallel with
vacuum line); to deactivate a pad, close the pad shutoff (place valve lever
perpendicular to vacuum line). To calculate the lifting capacity when some
pads are deactivated, consult the Per-Pad Load Capacity rating (see
SPECIFICATIONS) and multiply by the number of pads currently
activated. Always activate pads in a symmetrical configuration, to keep
the lifter balanced while lifting, and use as many pads as possible for
each load being lifted, to maximize lifting capacity and to minimize load overhang.
T
O
A
PPLY THE
P
ADS TO A
L
OAD
Generating Vacuum Flow
Place the power switch in the “ON” position to engage the vacuum pump. The lifter is designed
for the vacuum pump to run continuously. Move the slide on the pad frame control valve to the
“APPLY” position. This opens the lifter’s vacuum lines to the vacuum flow created by the pump,
causing vacuum to be drawn at the pads immediately. The power switch and the control valve
must remain in these positions throughout the lift.
WARNING: Never interrupt vacuum flow during operation; keep pump running
and control valve in “APPLY” position throughout lift.
Any interruption of the vacuum flow during lifter operation could result in the release of the load
and possible injury to the operator (see T O L IFT AND M OVE THE L OAD : In Case of Power Failure to
follow).
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
).
The lifter is designed to automatically carry the load in an upright orientation. Center the pad
frame from left to right on the load. Determine which will be the top edge of the load while
lifting, and position the long row of vacuum pads near that edge.
7 This position will maximize
stability while lifting the load. Make sure that all activated 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 apply the lifter to the load until the
pads seal against the contact surface.
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.
7
This is the only row of pads on models MT4HV11FAC and MT6HV11FAC.
CLOSED
PAD SHUTOFF VALVE