Disconnect electrical harness (1).
Loosen nuts (2 and 3).
Loosen nut (4).
Remove clamps (5).
Remove pump (6).
Remove nipple (7) and discard packing.
Install new packing on nipple (7).
All 4 pumps on the system can be removed
using same procedure.
Visually inspect new pump fittings for thread
Inspect thread on hose assembly.
Inspect wire harness for damage and cannon plug
threads before connecting harness plugs.
Install new packing on nipple fitting (7) and install
fitting on pump.
Install pump (6).
Install clamps (5).
Install nuts (4), (3), and (2) and tighten.
Connect electrical wire (1).
Test system for leaks. Refer to Chapter 2,
paragraph 2-13, for pressure check.
3-19. SUCTION AND DISCHARGE HOSES.
This task covers:
Tools: Bonney Wrenches
Fuel Hose (22, 23, Fig C-2), Appx C
Refer to Figure 3-9.
All ERFS tank cam levers CLOSED.
All coupling valves CLOSED.
All electrical power OFF.
GENERAL SAFETY INSTRUCTIONS
ELECTRICAL GROUNDING OF THE
require the grounding of the helicopter
when parked and during all fueling
electrical switches shall be operated
except those necessary for servicing
during fueling and defueling. No
smoking or flame during all fueling
and defueling operations.