TM 55-1520-240-23-6
7-16.2
FILLING AND BLEEDING FLIGHT CONTROL HYDRAULIC SYSTEMS (WITHOUT
EXTERNAL POWER)
7-16.2
INITIAL SETUP
Applicable Configurations:
All
Tools:
Hydraulic Repairer’s Tool Kit, NSN 5180-00-323-4891
Containers, 2 Quart
Hand Oiler
Workstand
Materials:
Hydraulic Fluid (E199)
Bleed Hose (Tubing) (E428)
Cloths (E120)
Lockwire (E231)
Gloves (E186)
Personnel Required:
Medium Helicopter Repairer
Aircraft Pneudraulics Repairer
Inspector
References:
Task 1-36
Task 1-61
Task 1-63
Task 7-22
Task 7-23
Task 7-27
Task 7-28
Equipment Condition:
Flight Control System Accumulators Serviced (Task
1-63)
Flight Control Hydraulic System Reservoirs Serviced
(Tasks 1-60, 1-61, or 1-62)
Flight Control Hydraulic Systems Flushed (Tasks
7-10, 7-11, 7-12, 7-13, 7-14)
Utility Hydraulic System Filled and Bled (Task 7-335)
Battery Connected (Task 1-39)
Electrical Power On
Hydraulic Power Off
Right Forward Work Platform Open (Task 2-2)
Left Pylon Access Door Open (Task 2-2)
Forward Transmission Drip Pan Removed (Task 2-3)
Left Transmission Baffle Open (Task 2-2)
Controls Closet Acoustic Blanket Removed (Task
2-107)
Tiedown Line Attached to Forward Blades (Task 1-26)
General Safety Instructions:
Hydraulic fluid (E199) is toxic. It can
irritate skin and cause burns. Avoid
inhaling. Use only with adequate
ventilation. Avoid contact with skin,
eyes, or clothing. In case of contact,
immediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
Hydraulic fluid ejected under pressure
can cause injury to personnel.
Hydraulic fluid sprayed into the air is
a fire hazard.
7-125
