SZD-54-2
„Perkoz”
TECHNICAL SERVICE MANUAL
SECTION 2.
ASSEMBLING & DISASSEMBLING,
SYSTEMS DESCRIPTION
Issue II
April 2014
Revision No. 2
May 2017
Allstar PZL Glider Sp. z o.o.
Doc No. 542.4.02
page 2.37
corrected
Scheme shows extended version of electric installation that can be powered
with three batteries.
In minimum version one battery can power only SP3 stall warning device,
transceiver and turn indicators. It can be mounted in luggage compartment
(Fig. 2
‒22.) or in container in vertical stabilizer (Fig. 7‒4.). A conductor (2×AWG 16)
terminated in front cabin with coiled loop with sealed ends is led to the container by
factory.
When powered with three or two batteries, switching to additional one should
be done after supply voltage drops to 10,5 V. A signal for switching is such voltage
indication on mounted equipment, e.g. transceiver, or LEDs flashing at stall warning
device SP3 provided it is installed.
Extending electrical installation according to above scheme, use copper, multi-
wire, insulated, aviation conductors LYc-L according to BN-80/3053-21 or LGY
according to DIN 72551-6.
It is possible to charge batteries mounted on sailplane according to charging
parameters:
- maximum charging current of 650 mA,
- maximum disable voltage of 14,8 V.
2.18. Removing rear seat pan
Mounting of rear seat pan is presented in Fig. 2
‒20.
In order to remove the rear seat pan (1):
1. Thread safety belts through seat pan slots so they would find on the bottom of
cabin, untie and loosen control stick pouch astringent tie string.
2. By rotating knob (2) towards bottom of seat pan (when standing on the LH side of
the cabin, leftwards) remove bolts (5) from sockets (7).
3. Move the seat pan backwards and upwards in order to remove front tube (3) from
the guide (4).
4. In this position rotate seat pan - right side upwards, then move it forward and take
it out from fuselage.
2
