INSPECT FOR CONTAMINATION OF HYDRAULIC SYSTEMS
Check all six hydraulic filters (1). Inspect that
red indicator button (2) on bottom of each filter
has not extended.
If button (2) is extended, apply hydraulic power to
Depress button (2). If checking utility system,
have pilot in cockpit motor either engine for 30
seconds. If checking flight control system, have
pilot in cockpit cycle control stick for 30 seconds.
If button extends, filter element is clogged.
Remove hydraulic power.
Remove filter element on all contaminated filters
(Tasks 7-33, 7-156, and 7-194 as required).
Inspect removed element and determine source
of contamination (FM 1-509).
Install new filter element (Task 7-34, 7-157, or
7-195 as required).
Close right forward walk platform (Task 2-2).
Close pylon right access door (Task 2-2).
END OF TASK