TM 55-1520-240-23-1
1-38
APPLY EXTERNAL HYDRAULIC POWER
1-38
INITIAL SETUP
Applicable Configurations:
All
Tools:
Hydraulic Systems Test Stand, Equipped with
Three-Micron Filter
Aviation Ground Power Unit (AGPU)
Materials:
None
Personnel Required:
Aircraft Pneudraulics Repairer
References:
TM 55-1730-229-12
TM 55-1730-229-34
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Ground Test Connection Access Cover Removed for
No. 1 Flight Control Hydraulic System and Panel
Open for No. 2 Flight Control and Utility Hydraulic
Systems as Needed (Task 2-2)
General Safety Instructions:
If applying power to flight controls,
keep hands away from controls.
Application of hydraulic power will
cause controls to move and rotor
blades to flap. Injury to personnel can
occur.
Test stand pressure hose must
have coupling nut 3205-8 or
3305-8 installed. Return hose
must have coupling nut 3205-12
or 3305-12 installed. Series 3205
are for flared fittings, and 3305
are for flareless fittings (Aeroquip
or equivalent). Wrong fittings can
damage connections.
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