PIPER COMAl\CHE SER\lCE MAJi'l"AL TABLE lI-I\'. I:'\SPECT)O~ - OVERHAl'L TIME LIMITS 2-60. Testing for Leaks. Apply detector fluid type CD-l solution or its equivalent. The solution should he shaken to obtain suds or foam. The suds or foam should be applied sparingly to the joints of a closed system. Look for traces of bubbles. '0 visible leakage should be found. Repair or replace any defective pans and retest system. With the system pressurized to service pressure. further tests can be made. The rate of any leak should not exceed one percent of the total supply per 24 hour period. All traces of the detector fluid should be wiped off at the conclusion of the examination. :!-t'1. Maintenance.
a. Check that all lines have sufficient clearance between all adjacent structures and are secured in place. Also. check the cylinder to be sure it i ... securely mounted. b. Check the cvlinder for the ICC or DOT identification number and for the date of the last FAA inspection and test. . c. If cylinder is completely empty. it must be completely disassembled and inspected in an FAA approved facility before recharging. d. Any lines that are defective should be replaced with factory replacements. e. Clean all lines and fittings as described in Paragraph 2-62. f. I se Ribbon Dope Thread Sealant (Permacel a lZ) on male end .. of fittings only. Wrap thread in direction of thread spiral.
beginning with the second thread on the fitting. Avoid getting any sealant into the line .... g. Refer to FAA Manual AC 43.13-1 A for more service details. ~-«!. Cleaning Operations. To rernov e oil and grease from tubing and fittings. one of the following cleaning method ... may be used: a. First Method: I. A vapor degreasing with stabilized trichlorethylene conforming to specification M IL-T-7703 shall be u ... ed. ADDED: 4/3/78 icis HASDU'G A'D SER\'ICiSG PARTS I"SPECTIO" O\'ERHAl'L Regulator Pressure Gauge High Pressure Lines Low Pressure Lines Outlets (Cabin) External Recharge Valve Masks 300 Flight Hrs. 300 Flight Hrs. 300 Flight Hrs. 300 Flight Hrs. 300 Flight Hrs.
Each Use Each Use 5 Yrs, 5 Yrs, 5 Yrs. Replace Every 5 Yrs, Replace as 'ecessary