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Pply the, Ads to a, Powering up the lifter – Wood’s Powr-Grip MT5HV11AC User Manual

Page 12: Positioning the lifter on the load, Sealing the pads against the load

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Rev 19.0/1-14

10

MT5HV11AC: #35086

T

O

A

PPLY THE

P

ADS TO A

L

OAD

Powering up the Lifter

Make sure the lever on the vacuum control valve is in the center position (see T

O

R

ELEASE THE

P

ADS FROM THE

L

OAD

: About Stand-By Mode to follow). Place the power switch in the ON position

( ), to engage the vacuum pump. The lifter is designed for the vacuum pump to run
continuously.

WARNING: Never turn power off during operation; keep pump running

throughout lift.

The power switch must remain in the ON position while operating the lifter. Placing the power

switch in the OFF position ( ) 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

).

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 unexpectedly (see T

O

T

ILT THE

L

OAD

to follow), and it may also damage the

lifter.

4

Make sure that all vacuum pads will fit entirely on the load’s contact surface (see

SPECIFICATIONS: Maximum 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

Move the lever on the vacuum control valve to the “APPLY” position: Pull outward on the lever's

knob, move the lever all the way

upward

and release it. This position opens the lifter’s vacuum

lines to the airflow created by the vacuum pump, causing air to be drawn immediately at the
vacuum pads.

5

Apply the lifter to the load until all pads seal against it.

WARNING: Keep valve lever in “APPLY” position throughout lift.

The valve lever must remain in the “APPLY” position throughout the entire lift. Any interruption

of the vacuum flow during lifter operation could result in the release of the load and possible
injury to the operator.
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.

4

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.

5

To minimize the time it takes for the lifter to attach and obtain full vacuum, do not place the valve lever in the “APPLY” position

until the vacuum pads are contacting the load.