MD Helicopters 369-500, Инструкция по техническому обслуживанию

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CSP-HMI-3
MD Helicopters, Inc
.
MAINTENANCE MANUAL
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Revision 11
96-45-00
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Neither this document nor any part hereof may be reproduced or transferred to
other documents or used or disclosed to others for manufacturing or any other
purpose except as specifically authorized in writing by MD Helicopters, Inc.
Copyright
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1999 − 2016 by MD Helicopters, Inc.
3. Searchlight Assembly Replacement
(Ref. Figure 201)
(1). Open SEARCHLIGHT PWR and CONT
circuit breakers on lower switch and
circuit breaker panel. Tag circuit
breakers as required.
(2). Verify BATTERY-OFF-EXT PWR
(master) switch at OFF position.
(3). Loosen studs on floor access cover just
aft of searchlight control column, and
remove cover.
(4). Locate searchlight wiring on control
and support columns and disconnect
wiring at splices SP66 and SP67,
ground terminal E27, and relays K302
and K303. Tag wiring for installation.
(5). Remove clamp and seal from external
wiring cable at bottom of fuselage, then
remove cable.
(6). Remove bolts from searchlight control
column upper bearing plate at floorline.
NOTE:
Upper bearing plate is incorporated in
searchlight assembly and cannot be re­
moved from control column.
(7). Hoist or jack up helicopter until landing
gear skids or floats are approximately 2
feet above ground (Ref. Sec. 07-00-00).
(8). Pull and extend slidelock and lower
slightly for access to setscrew, which
secures slidelock pin to top of extending
support column (Ref. Figure 201).
Take care to prevent searchlight
support column (and dual
lights) from dropping to ground when slide­
lock is removed. Also, care should be taken
to retain slidelock pin which is under spring
tension.
(9). Loosen slidelock setscrew and remove
slidelock housing, spring, and lockpin.
(10). Carefully lower searchlight support
column and raise interior control
column until both columns are com­
pletely disengaged.
(11). Remove searchlight control and support
columns from helicopter.
(12). Install plug buttons in helicopter floor
and lower skin holes, if required.
(13). Lower helicopter with jacks or hoist
(Ref. Sec. 07-00-00).
A. Electrical Components Removal
(Ref. Figure 201)
Consumable Materials
(Ref. Section 91 − 00 − 00)
Item Nomenclature
CM614 Sleeving, heat-shrink
(1). Remove relays K302 and K303 from nut
plate support at bottom of fuselage as
follows:
(a). Tag and disconnect wiring, jumper
wires, IN5401 diode, and bus with
RNF100X1/2 sleeving (CM614) from
relay terminals.
(b). Remove screws and washers from
nut- plate support, and remove
relays.
(2). Remove SEARCHLIGHT PWR and
CONT circuit breakers and EXT
caution light assembly (XDS11) from
lower switch and circuit breaker panel
as follows:
(a). Remove screws and lower switch and
circuit breaker panel from instru­
ment panel for access to circuit
breakers and light assembly.
(b). Tag and disconnect wiring from
SEARCHLIGHT PWR and CONT
circuit breaker Remove circuit
breakers from panel.
(c). Tag and disconnect wiring from
SEARCHLIGHT EXT caution light
assembly. Remove light assembly
from panel.
(3). Remove SEARCHLIGHT ON-OFF
switch from control column as follows:
(a). Remove screws and housing for
access to switch.
(b). Disconnect wiring and remove switch
from housing.
CAUTION