PIPER COMANCHE SERVICE MANUAL 2·34. FiI1iDI Oleo Strua. To 6U the nose or main ,ar oleo saut with fluid (MIL·fH606), whether it be only the additiol1 of I small amount or if the unit has been completely emptied and will require I largc amount, it should be filled as follows: WAANING Do not release air by removint the mgt valve core or filler plq. Depras thc valve core pin wu:il stnlt chAmber plelalre bu diminished. CAUrtON Dirt Uld foreip partida form around the filler piup of me landirc ,eu struts. therefore. before attemptillJ to mnove mae piup. me tops of the struts should be cleaned with compraRCI air a.adJor 'Nidi a dry type solvent. a, Place the airplane on jacks. (Refcno Jackinl.
Parapapb 2·11.) b. Placc a pan under tbe acar to catch spillqe. c. At the filler plUJ. relievc air prellUrc from the saut housin, chamber by ranovinJ the cap from the air valve and depraaiq the valve core. d. There are twO methods by which the stNt chuabcr may be fUled and these ate u follows: First Method: 1. Remove the valve core from the filler plua at the top of the DOR Jar strut housirc or at the tOP inboard side of the main ,car housing. Allow thc filler pllll to razap insaJJed. 2. Amc:b one end of a clean plutic hose to the valve seem of the 6Uer pluS and submCl'Jc the other cnd in a cOllwncr of hydraulic fluid.
NOTE An air-alht COftllectioll is nccaury bccwccn the plutic Nbc aDd the valve sum. Without such a connection, a small aDlOUllt of air will be sucked into the oleo strut durinl aeh sequacc, rclUltinl in an inordi.D..ue uaount of air bubbles Uld .. proloapd flllinJ operation. 3. Fully compress and exrcnd the saue thus drawifta fluid from the fluid coallUncr and expdlil'll air from the smn chamber. By watchilll the fluid pus throup the plutic hose. it can be determined when the strut is full and no air is present in the chamber. 4-. When air bubbles cease to flow throqh the hose. compress the strut fully and remove the hose from the valve stem. 5. With the strut compreslCd.
remove the rl1lcr plUJ to determine that the fluid level is visible up to the bottom of the filler holc. HANDLING AND SERVICING REViSED: 413/78 lC7