Cessna 150M - Torque Links; Shimmy Dampener

1. Spacer
2. Grease Fitting
3. Shim
4. Bushing
5. Stop Lug
6. Upper Torque Link
7. Nut
8. Bolt
9. Lower Torque Link
10. Safety Lug
8
4
NOTE
Tighten bolts (8) to 20-25 pound-
inches, then safety the bolts by bend-
ing tips of safety lug (10).
Tighten nuts (7) snugly, then tighten
to align next castellation with cotter
pin hole.
Shims (3) are used as required to
remove any looseness to assist in
preventing nose wheel shimmy.
Figure 5-10. Torque Links
bushings should not be removed except for replace-
ment of parts; replace if excessively worn. Always
deflate shock strut before disconnecting torque links.
5-40. SHIMMY DAMPENER. The shimmy dampener
provided for the nose gear offers reSistance to shim-
my by forcing hydraulic fluid through small orifices
in a piston, The dampener piston shaft is secured to
a stationary part and the housing is secured to the
1.
O-Ring
2.
Piston
3.
Roll Pin
4.
Barrel
5.
Retaining Ring
6.
Bearing Head
7.
Piston Rod
nose wheel steering collar which moves as the nose
wheel is turned right or left, causing relative motion
between the dampener shaft and housing. The shimmy
dampener is shown in figure 5-11, which may be
used as a guide for disassembly and reassembly.
When assembling the shimmy dampener, install new
O-rings. Lubricate parts with clean hydraulic fluid
during assembly. Shimmy dampener servicing pro-
cedures are outlined in Section 2.
7
Figure 5-11. Nose Gear' Shimmy Dampener
Change 3 5 -23