Forward Rudder Trim Controls Installation; Aft Rudder Trim Controls Removal - Piper PA-44-180 SEMINOLE Maintenance Manual

INSTALLATION OF FORWARD RUDDER TRIM CONTROLS. (Refer to Figure 27-16.)
1. To install the trim control wheel with drum:
A . Wrap the left cable on the trim drum by inserting the swaged ball of the cable in the slot provided
in the upper side of the drum which mates with the control wheel. Looking at this side, proceed
to wrap eleven turns of cable in a clockwise direction.
B. Attach the trim control wheel to the cable drum by aligning the long lug of the drum with the long
slot of the wheel and securing the two pieces together with three screws.
C. Wrap the right cable on the drum by inserting the swaged ball of the cable into the slot provided
in the flanged side (lower) of the drum. Looking at this side, proceed to wrap three and a half
turns of cable in a clockwise direction.
D. Lubricate and install the bushing in the lower side of the drum and the bearing on the upper side
of the trim control wheel assembly.
E. Align the trim control cables and position the control wheel assembly between its mounting
brackets. Ascertain that the trim indicator wire is positioned in the spiraled slot of the wheel with
no binding on the end. Install the retainer bolt from the upper side, along with the washer and
secure with washer and nut from below.
F. Install the cover assembly over the trim control wheel and secure with screws unless the control
cables have yet to be installed.
2. To install the trim control cables:
A. Draw the cables through the floor tunnel and route them through the pulley clusters at station
127.175 and 85.0.
B. Wrap the cable drum and install the trim control wheel as given in Step 1.
C. Position the cables over the proper pulleys.
D. Connect the forward cables to the aft cables at the turnbuckles in the aft section of the fuselage. If
aft cable is not installed, proceed with instructions given in Paragraph titled Installation of A f t
Rudder Trim Controls.
E. Remove the blocks securing the aft cables and check that the cables are seated on the pulleys.
Install the guard pins at the pulley clusters.
F. Set trim cable tension in accordance with specifications given in Figure 27-14 and check rigging
and adjustment. Safety both turnbuckles.
G. Install the tunnel cover on the forward tunnel and secure with screws.
H. Install the carpet over the floor tunnel.
I. Install the cover assembly over the trim control wheels and flap handle and secure with screws.
J. Install the seat belts removed from the top of the floor tunnel and secure with bolt, washer and
nut.
K. Install the aft floor tunnel cover, heater duct and carpet.
L. Install the carpet over the aft floor plate.
3. Install the panel to the aft section of the fuselage and the seats.
REMOVAL OF AFT RUDDER TRIM CONTROLS. (Refer to Figure 27-16.)
1. If the forward trim mechanism is not being removed, block the cables forward of the turnbuckles to
prevent the cables from unwrapping at the forward trim drum. (Refer to Figures 27-16 and 27-21.)
2. Secure the trim cables at the aft trim drum barrel.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
1L3
27-20-04
Page 27-25
Revised: June 20, 1995