TM 55-1520-240-T
7-1.3 FLIGHT CONTROL HYDRAULIC SYSTEM VISUAL CHECK
7-1.3
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit,
NSN 5180-00-323-4692
Materials:
Cloths (E135)
Personnel Required
67U10 Medium Helicopter Repairer (2)
References:
TM 55-1520-240-23
Equipment Condition:
TM 55-1520-240-23:
Battery Disconnected
Electrical Power Off
Hydraulic Power Off
Forward Transmission Drip Pan
Removed
Left Aft Transmission Access
Door Open
Forward Work Platforms Open
Pylon Access Doors Open
Controls Closet Acoustic Blanket
Removed
Controls Closet Panel Open
Cargo Ramp Open and Level
(Task 7-3.4)
TASK
RESULT
1.
2.
3.
4.
5.
6
Check FLT CONTR switch (1).
Check FLT CONT RESERVOIR LEVEL
switch (2).
Check FLT CONT RESERVOIR LEVEL
indicator (3).
Check four FILTER CHANGE lights (4).
Check two PUMP FAULT lights (5).
Check No. 2 flight control hydraulic
pump (6).
If switch (1) is loose or damaged, tighten or re-
place it as required.
If switch (2) is loose or damaged, tighten or re-
place it as required.
If indicator (3) is loose or damaged, tighten or re-
place it as required.
If any light (4) is damaged. repair rr replace it as
required.
If either light (5) is damaged, repair or replace it as
required.
If pump (6) is loose or damaged, tighten or replace
it as required. If any hose to pump is loose is loose
or damaged. tighten or replace it as required.
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