Rev 11.3/1-17
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MRTALPR4-DC: #35057
M
AINTENANCE
: Cleaning), and reapply the lifter to the load. If the load has rough or porous
surfaces,
the operator must conduct a test to determine whether the lifter is designed
to lift the load, as follows:
1) Make sure the lifter's vacuum generating system is functioning correctly (see MAINTENANCE:
V
ACUUM
T
EST
).
2) Apply the vacuum pads to the load as previously directed.
3) After the vacuum pump stops running, place the lifter's power switch in the “off” ( )
position.
4) Raise the load a minimal distance, to assure that it is supported by the lifter.
5) Monitor both vacuum gauges while the load is suspended for 5 minutes:
The lifter must
maintain a minimum vacuum level of 10" Hg [-34 kPa] during this time. If not, the
load does not possess the characteristics required for using this lifter.
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12
Certain load materials are too rough or porous to allow the lifter to form a seal which can be maintained for 5 minutes
without power. However, in geographical locations where CE Standards do not apply, it may be possible to use the lifter to lift
such loads. Contact Wood’s Powr-Grip for more information.
