ARMY TM 9-6115-670-14&P
4-127
4.50. ACTUATOR LINKAGE.
This task covers:
a. Service
b. Adjust
c. Replace
INITIAL SETUP
Tools
General Mechanic's Tool Kit
(Item 1, Appendix B)
Materials/Parts
Actuator Linkage
Equipment Conditions
MASTER ON-OFF switch on APU control unit
set to OFF.
Fan guard removed (para 4.18.).
SERVICE
Clean and lubricate governor linkage and rod ends.
ADJUST
a. Ensure stop nut (1, Figure 4-38) is against the bottom thread of actuator shaft (14).
b. Remove socket head screw (4), lock washer (11), and nut (12) that secures rod end bearing (13) of
long actuator linkage rod (3) to pivot arm (10).
c. Separate rod end bearing (13), from pivot arm (10).
d. Adjust distance between pins in long actuator linkage rod (3) to obtain length of 6-11/16 in. (16.98
cm) by turning rod end bearing (13).
e. Ensure clevis (2) is bottomed out against stop nut (1).
f. Align hole in rod end bearing (13) with hole in pivot arm (10) and install lock washer (11), nut (12),
and socket head screw (4). Ensure hex head screws on each end of long actuator rod are parallel.
g. Remove socket head screw (5), star lock washer (8), and nut (9) securing rod end bearing (7) of
short actuator linkage rod (6) to pivot arm (10).
h. Adjust distance between pins in actuator linkage rod (6) to obtain a length of 2-3/8 in. (6.08 cm).
i. Secure rod end bearing (7) of short linkage rod (6) to pivot arm (10) with socket head screw (5), star
lock washer (8), and nut (9).
NOTE
Ensure that no thread on the actuator shaft is showing.
