Cessna 172R Nose Landing gear



 NOSE LANDING GEAR SHOCK STRUT SERVICING
           The nose gear shock strut requires a periodic check to make sure the strut is filled with hydraulic fluid and is inflated to the correct air pressure. The procedures give only replenishing and servicing instructions.

       Shock Strut Servicing Procedures
                   The nose landing gear shock strut must be serviced every 100 hours.
                         
 To service the nose gear shock strut, proceed as follows:
(1) Raise airplane nose to remove pressure from shock strut.
(2) Remove valve cap and release all air.
(3) Remove valve housing assembly.
(4) Compress strut completely (stops in contact with outer barrel hub).
(5) Check and replenish oil level.
        NOTE: Fluid used must comply with specification MIL-PRF-5606.
(a) Fill strut to bottom of valve installation hole.
(b) Maintain oil level at bottom of valve installation hole.
(6) Fully extend strut.
(7) Reinstall valve housing assembly.
(8) With strut fully extended and nose wheel clear of ground, inflate strut to 45 PSI.

        NOTE: The nose landing gear shock strut will normally require only a minimum amount of service.
       Strut extension pressure must be maintained at 45 PSI. Machined surfaces must be wiped
free of dirt and dust using a clean, lint-free cloth saturated with MIL-PRF-5606 or kerosene.
All surfaces must be wiped free of excessive hydraulic fluid

Comments

Post a Comment

Popular posts from this blog

Cessna 152 Magneto Check

MAGNETO CHECK. NEVER ADVANCE TIMING BEYOND SPECIFICATIONS IN ORDER TO REDUCE RPM DROP. Too much importance is being attached to RPM drop in single ignition. RPM drop on single ignition is a natural characteristic of dual ignition design. The purpose of the following magneto check is to determine that all cylinders are firing. If all cylinders are not firing, the engine will run extremely rough and cause for investigation will be quite apparent. The amount of RPM drop is not necessarily significant and will be influenced by ambient air temperature, humidity, airport altitude, etc. In fact, absence of RPM drop should be cause for suspicion that the magneto timing has been bumped up and is set in advance of the setting specified. Magneto checks should be performed on a comparative basis between individual right and left magneto performance. a. Start and run engine until the oil and cylinder head temperatures are in normal operating ranges. b. Advance engine speed to 1700 RPM. c. Tu
Read more

Brake System Cessna 172

                             BRAKE SYSTEM -MAINTENANCE PRACTICES              1. Description and Operation A. The hydraulic brake system is comprised of two master cylinders, located immediately forward of the  pilot’s rudder pedals, brake lines and hoses, and single-disc, floating cylinder brake assemblies located at  each main landing gear wheel. B. The parking brake system is comprised of a pull-type handle and mechanical connections which are  linked to the rudder pedal assembly. Pulling aft on the brake handle applies mechanical pressure to the  rudder pedals, activating the brakes and locks the handle in place. Turning the handle 90 degrees will  release the parking brake and allow for normal operation through the rudder pedals. C. Brake operation is accomplished by pushing on the upper part of each rudder pedal. This motion is  mechanically transmitted to the respective brake master cylinder, and through fluid-carrying lines out to  the brake assembly where fluid pressure
Read more

McCauley Propeller Installation fixed pitch

Image
Propeller Installation for all fixed pitch propellers (except 1A162 model propellers).                   WARNING: MAKE SURE THE MAGNETO IS GROUNDED BEFORE INSTALLING  THE PROPELLER OR CONNECTING EXTERNAL POWER.                NOTE: McCauley recommends that propeller mounting nuts (if applicable) be replaced at each  propeller installation, whenever possible. However, nuts may be reused providing the threads are in good condition and the locking material prevents turning of the nut on the  stud by hand. Propeller mounting bolts must be magnetic particle inspected in accordance  with ASTM E-1444 or replaced whenever the propeller is removed from the engine.                NOTE: The aircraft maintenance manual or STC installation instructions should always be  consulted for any specialized procedures applicable to a specific aircraft. Various spinner arrangements not manufactured by McCauley may be used which require additional procedures. (1) Make sure the mating surfaces of t
Read more