Technical data

13773-001
12-20
Page 4 30 Nov 2000
(4) Defueling Airplane Drain Valve Method
(a) Acquire necessary tools and equipment.
* or equivalent substitute
(b) Provide a suitable fuel drain container under each wing tank drain valve.
(c) Ground the container to the exhaust outlet and airplane to a suitable earth ground.
(d) Remove the fuel drain valve to remove all fuel and any contaminates from the fuel tank.
(e) Remove and discard the old fuel drain valve o-ring.
(f) Install the fuel drain valve with a new o-ring.
(g) If desired, repeat steps b through f until the remaining fuel tank is drained.
(h) To completely drain the fuel system, use the fuel sampler cup to remove all fuel and any
contaminates from the gascolator and the integral collector tanks.
(i) Fuel airplane.(Refer to 12-10)
(j) Inspect the complete fuel system for any signs of leaks and service as required.
WARNING:
Any time the fuel system is drained or a fuel tank is empty for any rea-
son, air may enter the system. If the possibility that air has entered the
system does exist, ground run the engine on the until all air is
removed from the system. Operate the engine for several minutes on
each tank until proper engine operation is assured. Refer to the Pilot’s
Operating Handbook before starting and operating the engine.
(k) Ground run the engine to purge air from the fuel system.
(l) Reinspect the complete fuel system for any signs of leaks and service as required.
B. Hydraulic Brake System
The brake reservoir is located on the right side of the firewall in the engine compartment. The brake
system is filled with MIL-H-5606 (petroleum base) hydraulic brake fluid (red). The fluid level should be
checked periodically and at every inspection and replenished when necessary. If the entire system
must be filled, fill with fluid under pressure from the brake end of the system. This will eliminate air in
the system. If the system is low, the reason for loss of fluid must be determined before continued oper-
ation of the aircraft. For additional brake information refer to Chapter 32. (Refer to 32-42)
Fluid in the wheel cylinders may be under high pressure due to expansion. Therefore, be sure parking
brake is released and wheel chocks are in place, prior to beginning hydraulic system servicing. If the
brake pedal feels spongy, the complete brake system must be bled. If the system is low, the reason for
Description P/N or Spec. Supplier Purpose
Fire extinguisher
(Type AB, or ABC)
- Any Source Extinguish fire
Fuel drain container - Any Source Drain old fuel into
Fuel supply 100LL (Blue)
100 (Green)
Any Source Fuel airplane
Fuel sampler cup 50627-001* Cirrus Design
Duluth, MN
Drain gascolator and
integral collector tanks
Fuel drain valve o-ring NAS 1593-015 Any Source Replacement o-ring for
fuel drain valve