ATD4P9DXL_rev_0318
POWER UNIT PRIMING PROCEDURE
THE PROBLEM: Power unit runs fine but will not pump any fluid.
WARNING!! Failure to properly relieve pressure in the following steps can cause injury to personnel.
Step 1 – Locate the check valve, the flush plug to the left of the lowering valve.
Step 2 – Using an Allen wrench and shop towel – with shop towel in place to catch fluid – loosen the
check valve plug 2 ½ turns to allow it to leak.
Step 3 – Push the START button for one second, then release for three seconds. Repeat these steps
until unit starts pumping fluid.
Step 4 – Tighten the check valve plug.
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Summary of Contents for 4P9DXL
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