Jabiru J450, Руководство конструктора, Страница: 55 / 343

Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Firewall forward>Assemble and fit nose gear
Tuesday, April 6, 2010 55 of 343
Clamp the yoke in a vise and use a long bar inserted into the
top of the nose leg as a lever to compress the rubbers so that
the rebound rubber and the machined washer can be fitted to
the top of the suspension shaft and secured with an AN3-6A
bolt and Nyloc nut.
Compressing the rubbers will require substantial pressure: the
lower part of the leg will need to be horizontal in order to fit
the retaining bolt. Take care that the yoke is firmly held by the
vise and apply downward pressure on the lever smoothly.
Tighten the Nyloc nut firmly and then slowly release the pressure on the lever.
Assemble the nose leg housing
Assemble the top and bottom plates to the spacer with the supplied cap screws – clean the
threads, use a drop of Loctite 620 on each cap screw and tighten firmly. Clean the nylon
bushes and the matching holes in the top and bottom plates with Acetone and sand all surfaces
to be bonded and then fit the bushes into the plates, pushing both bushes from the outside in
towards the middle. Align the flats on the bush collars to clear the cap screws.
Fit the assembly onto the nose leg with the steering link on top and check for freedom of
movement. When you are satisfied that there is no binding, mix a small batch of flock and
flock the bushes into the plates, taking care not to get any flock onto the nose leg.
Use a mixing stick to smooth the flock as shown at above right and leave overnight to cure.
Drawings of the nose leg and nose leg housing follow on the next 2 pages.
Main rubbers
Rebound rubber
Lever
Nose leg