WOOD'S POWR-GRIP POWER TILT, Процедура

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TST-020 PT-AIR
– REV. 2017-246
Page 3 of 14
PRELIMINARY TEST
Note: The following assumes operator has access to suitable plugs to seal off the section being
tested.
This test determines whether leakage is located in the vacuum generating system or the pad
system.
1) Remove the hose from the vacuum filter that attaches to the
vacuum pad system. Using a cap plug (
1A
) cap off the fitting
of the vacuum filter as shown in
FIGURE 1
.
Note: The size plug needed may vary with lifter model.
2) Repeat the vacuum test with the filter capped-off.

If the vacuum level of the lifter’s vacuum gauge holds
steady and does not drop, this indicates that the leak is
located in the vacuum pad system between the filter and
vacuum pads.
Proceed to Pad System Tests.

If the vacuum level of the lifter
’s vacuum gauge starts
and continues to drop, this indicates that the leak is
located in the vacuum generating system.
Proceed to Vacuum Generating System Test.
FIGURE 1
1A