SECTION 2.
ASSEMBLING & DISASSEMBLING,
SYSTEMS DESCRIPTION
TECHNICAL SERVICE MANUAL
SZD-54-2
„Perkoz”
page 2.10
Allstar PZL Glider Sp. z o.o.
Doc No. 542.4.02
Issue II
April 2014
Revision
corrected
2.3. Horizontal tailplane assembling and disassembling
Horizontal tailplane and its connection to fuselage is presented in Fig. 2
‒6.
Horizontal stabilizer is connected to the fuselage by two stabilizer pins (4) inserted
into sleeves (5) and stabilizer fastening vertical bolt (1) screwed into fuselage fitting
(3) mounted in rear web (13). Vertical bolt (1) is secured from screwing out by special
safety pin (2).
Connection of elevator control system during mounting process occurs
automatically by end lever (8) slid in elevator lever (9) cut-out.
Operation sequence in the tailplane assembling:
1. Set trimming device to NH (nose heavy) position, deflect rudder fully to right or left
side.
2. Shove in the horizontal tailplane, inserting pins (4) in sleeves (5) (to be done by
two persons),
with elevator deflected fully down
. Maintaining the lever (8) in
upper and the elevator in lower position facilitates automatic connection of
elevator control by aligning cut-out in the lever (9) with lever roll (8). Correct
connection between levers (8) and (9) must be verified through transparent glass-
sight (10).
WARNING:
Other than NH position of trimming device and elevator not complete
deflection down results in lack of connection in elevator control.
3. Insert the vertical bolt (1) in the fitting (3) and tighten with M = 7,38
÷8,85 lbf·ft
torque, by means of torque wrench. The bolt head is to be positioned so to enable
mounting of the special safety pin (2).
4. Check correct connection of elevator controls by gentle deflections of control stick
fore and aft onto stop. Elevator deflections should follow these of control stick.
5. Secure bolt (1) with special safety pin (2) against loosening. The safety pin is to
be inserted in level position, as per Fig. 2
‒6., to avoid collision with the rudder.
NOTE:
If the safety pin will be set to vertical position, this might be
disconnected by the rudder.
Disassembling is to be accomplished in reverse sequence. Before
pulling out stabilizer pins (4) from sleeves (5) slightly lift the tailplane to
disconnect cone stabilizer fitting from fuselage fitting (3).
