Nose Gear; Wheel Balancing; Wheels Troubleshooting; Trouble Shooting - Cessna 177 SERIES Service Manual

NOTE
adjacent to each other. If a wheel becomes unbalanc-
ed during service, it may be statically rebalanced.
Failure to obtain acceptable wheel alignment
Wheel balancing equipment is available from the
through the use of shims indicates a deformed
Cessna Service Parts Center.
main gear strut or strut attaching bulkhead
out of alignment.
5-17. NOSE GEAR.
5-16. WHEEL BALANCING.
Since uneven tire wear
5-18. DESCRIPTION.
The nose gear assembly in-
|
is-usually the cause of wheel unbalance, installing a
cludes a steerable nose wheel mounted on an air/hy-
new tire probably will correct this condition.
Tire
draulic fluid shock strut.
The shock strut is attached
and tube manufacturing tolerances permit a specified
to brackets, riveted to the firewall and lower fuselage.
amount of static unbalance. The light- weight point
Nose wheel steering is afforded by a spring-loaded
of the tire is marked with a red dot on the tire side-
steering rod assembly, linking the nose gear to the
wall and the heavy-weight point of the tube is marked
rudder pedal bars. A fluid-filled shimmy dampener
with a contrasting color line (usually near the valve
is provided to minimize nose wheel shimmy.
A nose
stem). When installing a new tire, place these marks
wheel speed fairing may be installed.
5-18A. TROUBLE SHOOTING.
TROUBLE
PROBABLE CAUSE
REMEDY
NOSE WHEEL SHIMMY.
Nose strut loose in attaching clamps.
Tighten nose strut attaching clamps.
Shimmy dampener lacks fluid.
Refer to Section 2.
Defective shimmy dampener. Repair or replace defective
shimmy dampener.
Loose or worn nose wheel steering
Tighten or replace defective linkage.
linkage.
TIRES WEAR EXCESSIVLEY. Loose or defective nose wheel Tighten wheel bearings properly;
bearings.
replace if defective.
Loose torque links.
Add washers or replace if necessary.
Nose wheel out of balance. Correct in accordance with
paragraph 5-25.
HYDRAULIC FLUID LEAKAGE
Defective strut seals.
Replace defective seals.
FROM NOSE STRUT.
NOSE GEAR STRUT WILL
Defective air filler valve or
Check gasket and tighten loose
NOT HOLD AIR PRESSURE.
valve not tight.
valve. Replace if defective.
Defective strut seals.
Replace defective seals.
5-1C Change 6