
Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Firewall forward>Assemble and fit nose gear
Tuesday, April 6, 2010
59 of 343
Assemble the nose wheel
Press a bearing into each side of
the hub until the bearing reaches
the bottom of the machined hole
– use a large socket or piece of
heavy tube that is slightly
smaller in diameter than the
outside of the bearing to press
against the outer rim of the
bearing. A small hand press or a
bench vise would be ideal for the
purpose. Do
not
press against
the inner rim of the bearing –
this can damage the bearing.
Fit the bearing spacers into the
bearings with a drop of Loctite 480 and slide the axle through the spacers.
Check each end of the axle and spacer: both ends should be exactly level. If this is not the
case then grind either the axle or the spacer until they are level. If the width of the wheel and
spacers are wider than the length of the axle this will put a side load of the wheel bearings.
Partially inflate the inner tube with the valve out, then liberally coat the tube with talcum
powder, fit it into the tyre and place the tyre on the hub with the valve stem facing up and then
fit the rim to the hub, making sure that the valve stem is through the hole in the rim, bolt the
rim to the hub, taking care not to pinch the inner tube, and inflate the tyre to 35 PSI.
A drawing of the nose wheel can be found on the next page.
Fit the nose leg and nose wheel
Slide the nose leg up into the nose leg
housing and fit the steering yoke (arrowed
but not shown in photo) above the top bush
with the arms of the yoke swept back
towards the firewall. Secure the yoke to the
nose leg with an AN3-22A bolt and Nyloc
nut.
Roll the front wheel into the machined yoke
and fit with the AN4-72 bolt. Use a washer
and castellated nut, tighten the castellated nut
and secure it with a split pin.
The aircraft is now sitting on its own wheels,
however it will still need a trestle under the
empennage until the engine has been fitted in
the next task.
Содержание J450
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