Figure 11-5.—(A) Deflated tire flag, (B) Storage of valve core and cap using alternate deflated tire flag.
Lubrication
You should repack the bearings with
MIL-G-81322 grease. Spread a thin layer of grease
on bearing cups. Inspect the rubber grease retainers
for evidence of deterioration. Inspect the felt grease
retainers for deterioration, contamination, or water
saturation. Replace them if necessary. Freshwater-
saturated felt retainers may be dried and reused if they
are otherwise serviceable. Saltwater contaminated
felt seals must be replaced. You should presoak felt
retainers with VV-L-800 oil prior to their installation.
Reinstall the wheel on the aircraft according to the
applicable maintenance instructions manual (MIM).
Installation
When you reinstall the wheel on the aircraft, the
proper adjustment of the bearings is extremely
important. The following general rules apply to
wheel installation:
1. Tighten the axle nut while you spin the wheel
with your hand.
2. When the wheel no longer spins freely, back
off the axle nut one castellation (one-sixth turn).
When properly installed and adjusted, the wheel will
turn freely, but will not move sidewise.
NOTE: This procedure may vary from one
aircraft to another. Some aircraft require a
specific torque to be applied to the axle nut.
In these cases, you should refer to the
applicable MIM.
3. Install the appropriate axle nut safety device.
4. Install and lock the hubcap in place.
There are some inboard bearings that do not need
to be removed except to be replaced. These bearings
are listed in table 3-2, Aircraft Wheels, NAVAIR
04-10-1.
Safety Training
When you perform tire and wheel maintenance,
you should handle inflated and partially inflated
wheel assemblies with the same respect and care as
live ordnance because of the destructive potential of a
gas under pressure.
11-5
