TM 55-1520-240-23-4
5-94.1
REPLACE PITCH LINK BOLTS
(Continued)
5-94.1
NOTE
Procedure is same to install forward
or aft pitch links. Aft pitch links are
shown in task.
Positive retention bolts are installed in
pitch links. They have a pawl which
prevents nut or bolt removal unless
the pawl is depressed (Task 1-14).
1.
Position blade (1) with bolt to be replaced over
tunnel (2). Tie down one forward and one aft
blade (3).
NOTE
There may be two different five digit
codes marked on the part. The
five digit code 81966 is not the
manufacturer’s CAGE Code. If found,
the number 81966, identifies the
part as having been manufactured
in accordance with government
technical data package (TDP).
If any bolts part number is
114R3650-13, identify the five
digit manufacturer’s code or
manufacturer’s name on the bolt
head. If the bolt head is marked with
one of the following CAGE Codes or
manufacturer’s name listed below, the
114R3650-13 bolt is serviceable.
NO BREAK - WORK HARDER
(A) CAGE Code 84256 (Avibank
Manufacturing Co.)
(B) CAGE Code 77272 (Boeing)
If any bolts part number is
114R3650-15, identify the five
digit manufacturer’s code or
manufacturer’s name on the bolt
head. If the bolt head is marked with
one of the following CAGE Codes or
manufacturer’s name listed below, the
114R3650-15 bolt is serviceable.
NO BREAK - WORK HARDER
(A) CAGE Code 56878 (SPS
Technologies Inc.)
(B) CAGE Code 84256 (Avibank
Manufacturing Co.)
(C) CAGE Code 77272 (Boeing)
If any 114R3650-13 or 114R3650-15
bolt is unserviceable, or if the CAGE
Code or manufacturer’s name cannot
be identified, remove and replace
the unserviceable 114R3650-13 or
114R3650-15 bolt with a serviceable
114R3650-16 or 114R3650-17 bolt.
5-571
