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MAINTENANCE MANUAL
(b)
Monitor the inner cylinder where it meets the outer cylinder for 15 minutes.
(c)
Make sure the extension of the inner cylinder does not change during this time.
(d)
Make a record of the number of drops which come from the seals during the 15 minutes.
(e)
Make a record of the location of the leak.
(f)
Tow the airplane to cause movement between the inner cylinder and the outer cylinder (AMM 09-11-00/201).
NOTE: The minimum distance the airplane must be moved is two
____
airplane lengths.
(g)
Wipe the surface of the inner cylinder with a clean cloth to remove all of the fluid from the leak.
(h)
Monitor the inner cylinder where it meets the outer cylinder for 15 minutes.
(i)
Make sure the extension of the inner cylinder does not change during this time.
(j)
Make a record of the number of drops which come from the seals during the 15 minutes.
(k)
Make a record of the location of the leak.
(l)
Calculate the average of the number of drops which came from the seals during both of the 15 minute measurements.
NOTE: If the average is 30 drops or less during the 15
____ minutes time, the shock strut is serviceable. If the leakage flows continuously or is greater than 30 drops during the 15 minutes time, the shock strut is not serviceable.
S 792-138
(4) If the leakage stopped, do the steps that follow:
CAUTION: A DEFLATED OR FLAT STRUT CAN CAUSE DAMAGE DURING LANDING.
_______ IF THE AIRPLANE LANDED WITH A DEFLATED OR FLAT STRUT, DO A HARD LANDING INSPECTION PER AMM 05-51-01/201 TO MAKE SURE THERE IS NO DAMAGE.
(a) Continue to monitor the strut for leakage on subsequent landings. If you see more signs of leakage, do the entire leak check procedure again.
S 792-139
(5) If there was leakage between 1 and 5 drops during the 15 minute period, do the steps that follow:
NOTE: 20 drops is equal to 1.0 cc.
____
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CAUTION: A DEFLATED OR FLAT STRUT CAN CAUSE DAMAGE DURING LANDING.
_______ IF THE AIRPLANE LANDED WITH A DEFLATED OR FLAT STRUT, DO A HARD LANDING INSPECTION PER AMM 05-51-01/201 TO MAKE SURE THERE IS NO DAMAGE.
(a)
Continue to monitor the strut for leakage on subsequent landings. After 10 days service the shock strut with nitrogen and make sure the "x" dimension in the servicing chart is correct (AMM 12-15-02/301).
(b)
After 20 days deflate the shock strut and add oil until it is completely full. Then service the strut with nitrogen (AMM 12-15-02/301).
(c)
Do the 10 and 20 day servicing steps again until you change the seals.
S 212-142
(6) If there was leakage between 6 and 10 drops during the 15 minute period, do the steps that follow:
NOTE: 20 drops is equal to 1.0 cc.
____
CAUTION: A DEFLATED OR FLAT STRUT CAN CAUSE DAMAGE DURING LANDING.
_______ IF THE AIRPLANE LANDED WITH A DEFLATED OR FLAT STRUT, DO A HARD LANDING INSPECTION PER AMM 05-51-01/201 TO MAKE SURE THERE IS NO DAMAGE.
(a)
Continue to monitor the strut for leakage on subsequent landings. After 5 days service the shock strut with nitrogen and make sure the "x" dimension in the servicing chart is correct (AMM 12-15-02/301).
(b)
After 10 days deflate the shock strut and add oil until it is completely full. Then service the strut with nitrogen (AMM 12-15-02/301).
(c)
Do the 5 and 10 day servicing steps again until you change the seals.
S 212-143
(7) If there was leakage between 11 and 30 drops during the 15 minute period, do the steps that follow:
NOTE: 20 drops is equal to 1.0 cc.
____
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CAUTION: A DEFLATED OR FLAT STRUT CAN CAUSE DAMAGE DURING LANDING.
_______ IF THE AIRPLANE LANDED WITH A DEFLATED OR FLAT STRUT, DO A HARD LANDING INSPECTION PER AMM 05-51-01/201 TO MAKE SURE THERE IS NO DAMAGE.
(a)
Continue to monitor the strut for leakage on subsequent landings. After 2 days service the shock strut with nitrogen and make sure the "x" dimension in the servicing chart is correct (AMM 12-15-02/301).
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