Wood’s Powr-Grip MRTA811LDCO - Manual (Page 14)

Rev 0.0/6-14 12 MRTA8-DCO-DVS: #35077
OPERATION
B
EFORE
U
SING THE
L
IFTER
The operator must determine whether the lifter is capable of performing each intended task, in
accordance with the SPECIFICATIONS and INTENDED USE sections of this INSTRUCTIONS
manual. In addition, all of the following preparations must be completed prior to lifting any load.
Taking Safety Precautions
The operator must be trained in all relevant industry and regulatory standards for the operation
of the vacuum lifter in its geographical location (eg, ASME B30.20 in the USA).
The operator must read and understand this
INSTRUCTIONS manual, including all WARNINGS ,
before using the lifter. If necessary, contact Wood’s Powr-Grip or an authorized dealer for
assistance.
WARNING: Always wear appropriate personal protective equipment.
The operator must wear any personal protective equipment and take any other precautions
required to handle the load safely. Consult appropriate trade association guidelines to determine
what precautions are necessary for each type of load material.
Performing Inspections and Tests
WARNING: Always check battery energy before using lifter.
(See MAINTENANCE: B
ATTERY
T
EST
)
Perform all inspections and tests required by the I
NSPECTION
and T
ESTING
S
CHEDULES
(see MAINTENANCE). In addition, if the lifter has been in storage,
always conduct a V ACUUM T EST before placing it in service (see MAINTENANCE).
The lifter is equipped with 3 air filters to help protect the vacuum generating system from
contaminants. In order for a filter to function, the operator must empty the filter bowl before
enough liquid accumulates to contact any portion of the filter element (see MAINTENANCE: A
IR
F
ILTER
M
AINTENANCE
).
WARNING: Examine each air filter regularly, and empty when necessary.
There are 2 small air filters located on the lifter's pad frame. If either of these filters is not
maintained properly, it could become obstructed, causing vacuum to build up in the line leading
to the large vacuum gauge and the low vacuum warning light. Since the vacuum level at these
vacuum indicators would be higher than what actually exists elsewhere in the vacuum system,
the lifter could seem to be ready to lift the load, even though the lifter has not attained a vacuum
level sufficient for lifting the maximum load weight (see T
O
A
PPLY THE
P
ADS TO A
L
OAD
: Reading the
Vacuum Gauges and T
O
L
IFT AND
M
OVE THE
L
OAD
: Load Capacity and the Warning Light to follow).
In order to avoid this dangerous situation, each of the air filters must be maintained as directed
in the MAINTENANCE section.