(c)
Hydraulic pump depressurize valve on P6 panel.
(4)
On forward overhead panel, position GRD INTERCONNECT switch to OPEN.
(5)
If no longer required, remove electrical power from airplane.
B. Place thrust levers in IDLE and start levers in CUTOFF and clamp cables.
C. Open lower nose compartment access door.
D. Relieve tension on flap control cables WFA and WFB by loosening turnbuckles in lower nose compartment (Fig. 406).
E. Install speed brake system rigging pin SB-1 through forward speed brake control drum into structure (Fig. 408).
F. Relieve tension on stabilizer trim chain assembly by adjusting forward and aft support links to raise forward mechanism in lower nose compartment (Fig. 405).
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G. Open electronics equipment access door 1201.
H. Relieve tension on thrust control cables TlA, TlB, T2A, and T2B. Use turnbuckles located in electronics equipment compartment (Fig. 407). Disconnect and tag cables for thrust lever being removed.
3. Remove Thrust Levers
A. Remove left and right stabilizer trim control wheel tie rod nut (1, Fig. 404).
B. Pull stabilizer trim control wheel tie rod (8) from stabilizer trim control wheel shaft.
C. Remove right stabilizer trim control wheel (7) from stabilizer trim control wheel shaft (2).
D. Remove both left and right upper side door (6).
E. Remove lower right access panel (10).
F. Disconnect stabilizer trim cutout switches (9).
G. Cut lockwire and remove right control shaft nut (5).
H. Remove forward electronic units (16) from aft electronic panel.
I. Remove start lever detents (10, Fig. 402) for No. 1 and No. 2 engine start levers.
J. Remove forward and aft cover tie straps (4 and 2).
K. Remove forward and aft cover angles (6 and 8).
L. Remove horn cutout switch (17, Fig. 404).
M. Remove stabilizer trim warning light cover (15).
N. Lift cover assemblies (5, Fig. 402) from control stand.
O. Remove right control stand frame (4, Fig. 404).
P. Remove key (3) from slot in right control shaft (12).
Q. Replace right control shaft nut (5) on right control shaft (12) to allow removal of spacer, stabilizer trim indicator, spacer and flap handle as a unit.
R. Detach stabilizer trim indicator link (13) from stabilizer trim indicator by removing bolt (14).
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S. Remove right control shaft (12) with nut, spacer, trim indicator, spacer, and flap handle as a unit.
T. Rotate left stabilizer trim wheel until connector link (11) in stabilizer trim chain is accessible for removal.
U. Detach connector link and remove chain from sprocket. Secure chain in bottom of control stand.
V. Remove left stabilizer trim control wheel (l, Fig. 402) from stabilizer trim control wheel shaft (7).
W. Remove stabilizer trim control wheel shaft (7) and sprocket from right side of control stand.
X. Tag and disconnect thrust lever wire bundle terminals, and remove wire clamp (Fig. 403).
Y. Cut lockwire and remove left control shaft nut (3, Fig. 402) from left control shaft.
Z. Using dowel, (5, Fig. 401) push left control shaft clear of control stand. Use care to prevent loss of key (9, Fig. 402).
CAUTION: KEY (9, FIG. 402) WILL BE FREE FROM LEFT CONTROL SHAFT AND LEFT FRAME WHEN LEFT CONTROL SHAFT IS DRIVEN FROM CONTROL STAND.
AA. Deleted.
AB. Deleted.
AC. Pull dowel to left until thrust lever assembly can be lifted from control stand. Use additional
dowel from right side of control stand to hold right start lever and thrust lever not being removed.
NOTE: Tag position of spacers removed. Position and thickness of spacers may vary in different control stands.
4. Install Thrust Levers
A. Position applicable thrust lever (1 and 6, Fig. 401) in control stand with cable on drum.
(1)
Levers are positioned from right to left as follows: large spacer, No. 2 start lever, No. 2 thrust lever, No. 1 thrust lever, No. 1 start lever, speed brake crank with spacer on each side if required, and stabilizer trim indicator with spacer.
(2)
Secure cable to drum, seat ball in relieved area and lockwire.
(3)
Insert detent assembly cam rollers in cams on thrust drums.
(4)
Position spacers as they were removed. Ensure spacers are in thrust lever assemblies.
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