Nose Gear; Brake System - Pipistrel ALPHA Trainer LSA Pilot Operating Handbook

ALPHA Trainer LSA
Pilot Operating Handbook
less type wheel tire is 4.00 x 6. Wheel track is 1.60 m, wheel base 1.58 m.
Inflate to 40 psi (2.8 bar).
7.4.2
The nose landing gear is supported from the main engine frame. The nose
landing gear is steerable, connected to the rudder pedal control system and
incorporates an oil-spring damper element. All wheels can be equipped with
aerodynamic fairings made of CFRP. The tube-type nosewheel tire is 4.00
x 4. The nose gear is steerable. It is always connected to the rudder pedal
control system. The suspension is a spring-type oleo-strut. The main tube of
the strut and the fork are made out of aluminum. The inner tube is made out
of crome plated steel. Inflate to 26 psi (1.8 bar).
7.4.3
The main wheels are equipped with hydraulic disc brakes. Brakes are acti-
vated by a lever positioned in the central console between the seats. A metal
pin on the brake handle is used to keep the handle pulled and thus mantain-
ing pressure in the circuit and acting as parking brake function.
The brake system consists of a master cylinder activated by the brake han-
dle, an hydraulic fluid reservoirs, a single drum (disc for Beringer wheels
option) brake assembly on each main landing gear wheel, and associated
hydraulic plumbing. Braking pressure is initiated by pulling the lever. The
reservoir is serviced with DOT-4 hydraulic fluid.
Brake system malfunction or impending brake failure may be indicated by a
gradual decrease in braking action after brake application, noisy or dragging
brakes, soft or spongy handle, excessive travel, and/or weak braking action.
Should any of these symptoms occur, immediate maintenance is required.
If, during taxi or landing roll, braking action decreases, release the handle
and then reapply the brakes with heavy pressure. If the brakes are spongy
or handle travel increases, pumping the handle may build braking pressure.
CAUTION:
Do not set the parking brake in flight. If a landing is made with
the parking brake set, the brakes will maintain any pressure applied after
touchdown.
The main wheel brakes are set for parking by using the parking brake pin
on the brake activation handle. To apply the parking brake, set the brakes
pulling the handle, and set the pin to keep the handle pulled.
POH-162-00-40-001
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NOSE GEAR

BRAKE SYSTEM

SECTION 7
AIRPLANE DESCRIPTION
PAGE
7-9