TB 1--1520--237--20--216
Correction Procedures.
CAUTION
Proper harness clamping is required to prevent interference between the harness assembly
and cyclic stick stops.
a.
Wiring harness clamping procedure for UH--60A, L, Q and EH--60A and EH--60L aircraft.
(1) Turn off all electrical and hydraulic power to the aircraft.
(2) Measure 7 (seven) inches along the length of the wire bundle from where the bundle exits
the stick tube to the location of the clamp here marker sleeve. This distance must be between 7.0 and 7.25
inches. If necessary, install a new marker sleeve at this location. Bond the wire bundle to marker sleeve at
this location. Bond the wire bundle to marker sleeve using adhesive, item 49, Appendix D, TM
1--1520--237--23--9 (PLIOBOND #20, NSN 8040--00--266--7429 or equivalent). Verify marker sleeve is lo-
cated 7.0 to 7.25 inches from the exit point of the wire bundle from the cyclic stick to the clamp.
(3) Clamp wire harness to the airframe, ensuring the marker sleeve is inside the clamp. Bond
the marker sleeve to the clamp using adhesive, item 49, Appendix D, TM 1--1520--237--23--9 (PLIOBOND
#20, NSN 8040--00--266--7429, or equivalent).
(4) Apply hydraulic power to the aircraft.
(5) With collective half way up and pedals centered, move the cyclic stick through the full range
of motion (full left to right and full forward to aft). Throughout the full control range, the pilots and co--pilots
wire harnesses must remain clear of al the cyclic stick stops.
(6) Return cyclic and pedals center position, collective to full down, and turn off hydraulic power.
(7) Zip up both cyclic stick boots.
b.
Wire harness clamping procedure for MH--60K Aircraft:
(1) Turn off all electrical and hydraulic power to the aircraft.
(2) Pilots stick: Measure 8 (eight) inches along the length of the wire bundle from where the
bundle exits the stick tube to the location of the clamp here -- pilot marker sleeve. This distance must be
between 8.0 and 8.25 inches. If necessary, install a new marker sleeve at this location. Bond the wire bundle
to marker sleeve using adhesive, item 63, Appendix D, TM 1--1520--237--23--6 (PLIOBOND #20, NSN
8040--00--266--7429 or equivalent). Verify marker sleeve is located 8.0 to 8.25 inches from the exit point of
the wire bundle from the cyclic stick to the clamp.
(3) Copilots stick: Measure 9 (nine) inches along the length of the wire bundle from where the
bundle exits the stick tube to the location of the clamp here -- copilot marker sleeve. This distance must be
between 9.0 and 9.25 inches. If necessary, install a new marker sleeve at this location. Bond the wire bundle
to marker sleeve using adhesive, PLIOBOND #20 (NSN 8040--00--266--7429, or equivalent). Verify marker
sleeve is located 9.0 to 9.25 inches from the exit point of the wire bundle from the cyclic stick to the clamp.
(4) Clamp wire harness to the airframe, ensuring the marker sleeve is inside the clamp. Bond
the marker sleeve to the clamp using adhesive, PLIOBOND #20 (NSN 8040--00--266--7429, or equivalent).
(5) Apply hydraulic power to the aircraft.
(6) With collective half way up and pedals centered, move the cyclic stick through the full range
of motion (full left to right and full forward to aft). Throughout the full control range, the pilots and co--pilots
wire harnesses must remain clear of all the cyclic stick stops.
(7) Return cyclic and pedals to center, collective to full down position, and turn off hydraulic pow-
er.
(8) Zip up both cyclic stick boots.
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