Aircraft Service Manual
Jabiru Aircraft
Pty Ltd
JTM001-1
J120, J160, J170, J200/J400, J230/J430, J250/J450 Variants
REVISION
1
Dated: Nov 2011
Issued By: SW
Page: 96 of 233
8.10 NOSE WHEEL SPEED FAIRING (SPAT)
8.10.1 DESCRIPTION
Jabiru Aircraft are equipped with a nose wheel speed fairing (wheel spat).
This fairing smoothes the airflow around the nose wheel and significantly improves the efficiency of
the aircraft.
In some cases the nose wheel spat is complimented by a nose leg fairing which covers the nose leg
and rubber spring assembly.
8.10.2 REMOVAL & INSTALLATION
1.
Weight or tie-down tail of aircraft to raise the nose wheel off the floor as detailed in Section
3.2.2.
2.
If equipped, remove the screws holding the nose leg fairing together and those holding it to the
wheel spat. Remove the fairing.
3.
Remove the machine screws around the forward and rear sections of the fairing and remove the
rear section.
4.
Loosen and withdraw the axle, remove the wheel and remove the front section.
5.
Reverse the preceding steps for installation.
8.11 NOSE WHEEL
8.11.1 DESCRIPTION
The nose wheel assembly consists of a cast Aluminium split rim, tube and tyre. The smaller half of
the split rim is common with the main wheel assemblies while the larger half, with integral bearing
carriers, is specific to the nose wheel.
Figure 63 shows a typical installation. While details and part numbers vary from model to model the
general arrangement shown applies to all aircraft.
8.11.2 REMOVAL AND INSTALLATION
1.
Weight or tie-down tail of aircraft to raise the nose wheel off the floor as detailed in Section
3.2.2.
2.
Remove the wheel spat and the nose wheel axle bolt.
3.
Pull nose wheel assembly from yoke.
4.
Reverse the preceding steps to install nose wheel. Tighten axle bolt
to “solid laminate” value
given in Table 1.
8.11.3 NOSE WHEEL DISASSEMBLY
Completely deflate tyre by removing the valve stem and break tyre beads loose at wheel rim. Refer
to Figure 63.
WARNING
Injury can result from attempting to separate wheel halves with the tyre inflated. Avoid damaging
wheel flanges when breaking beads loose as a scratch, nick or gouge may cause wheel failure.
1.
Remove through-bolts and separate wheel halves.
2.
Remove wheel hub.
3.
Remove tyre and tube from wheel halves.
4.
Remove bearings.
NOTE: The bearing
s are “press-fit” in the wheel hub and should not be removed unless a new
part is to be installed.
