CELIER
SERVICE MANUAL
Xenon 2
RST
Aviation
Service Work, Operational Materials
Chapter 4
4.5
Brake Fluid
The DOT 4 fluid is recommended for application with the wheel braking hydraulic system.
The fluid must be replaced not less than every 3 years. 0.5 dm
3
of the fluid must be prepared for
replacement.
To replace the brake fluid, it is necessary to unscrew completely the deaerator at the brake
pump mounted on the control stick and substitute it for a special deaerator with a transparent tube,
delivered with the factory kit, next mount the applicator (syringe) in the tube filled with a new
fluid. Unscrew the deaerator at the brake cylinder of one of the wheels. By moving the brake lever
and forcing in the fluid with the applicator, it must be forced through the system, and the old fluid,
flowing out through the deaerator at the wheel, must be gathered into a vessel. Make sure the
system is deaerated. Tighten the deaerator at the first wheel, unscrew one at the second and repeat
the actions. Screw out the special deaerator with the tube and change it to the original one. After
deaeration, tighten all the deaerators. Check that the system is leakproof.
CAUTION: due to the aggressive nature of the fluid, secure with paper or a cloth the places of
the deaerator at the brake pump mounted on the stick so it does not get onto other
gyrocopter components. Look after your own safety. Finally, cleanse all the
surfaces of the fluid.
4.6
Air, Oil and Fuel Filters
All the work related to replacing and cleaning air, oil and fuel filters is described in the
Service Manual of Rotax engines.
Edition 1
24 Aug 2009
Change no.:
Document no.: X2RST-001-PL
Page 4-5
