ASSEMBLY OF MAIN GEAR OLEO (figure 32-1)
1. Install orifice assembly, if removed, as follows:
a. Lubricate an O-ring with hydraulic fluid (MIL-H-5606) and install in annular slot in metering
orifice.
b. Insert orifice through opening in top of gear housing and turn it into threaded hole web. Tighten
orfice with use of a stud type spanner wrench.
c. Lubricate and install an O-ring or apply a thin layer of Permatex Forma-Gasket No. 6 sealant,
directly underneath flange of cylinder head.
d. Insert tube of metering assembly through opening in top of housing and into orifice. Be careful not
to cut or dislodge O-ring slot in orifice.
e. Secure metering tube assembly with bolts and safety with MS20995-C32 wire.
2. Assemble components of piston tube on tube by placing in order, retainer ring, spacer ring, and scraper
ring. Insert an O-ring into annular slot in bottom of housing.
3. Lubricate wall of piston and carefully insert it into housing. Be careful not to damage or dislocate the
O-ring in housing.
4. Ensure that bushings are installed in upper and lower torque links.
5. Install links into their respective ends of oleo strut and position tube axle stub, using appropriate
combination of bearing washers and shim washers to allow free action of links, yet resist side play.
6. Position brake line bracket and secure complete assembly with bolt, washers, nut, and cotter pins.
Ensure proper washers are under head of bolt and nut.
7. At connecting point of both upper and lower links, install spacer washers and brake line bracket.
Secure complete assembly with bolt, washers, nuts, and cotter pin. Ensure proper washers are under
head of bolt and nut.
—NOTE—
Links should be loose enough to allow free action of the gear, but
also resist side play. To eliminate side play use shim washers
(6331103 0.005) as required. Maximum side play 0.005 to 0.007
of an inch.
8. Slide scraper and spacer rings into place and secure with retainer ring in annular slot in bottom of
housing.
9. Install hydraulic brake line.
10. If removed, install landing gear. (Refer to Installation of Main Landing Gear.)
11. Service oleo strut. (Refer to Oleo Struts, chapter 12.)
12. Remove drip pan and slowly lower airplane from jacks.
13. Bleed brakes if necessary. (Refer to Bleeding Brakes.)
MAIN LANDING GEAR ASSEMBLY
REMOVAL OF MAIN LANDING GEAR (figure 32-2)
1. Place airplane on jacks. (Refer to chapter 7.)
2. Place a drip pan under the main gear to catch spillage.
32 - 12 - 00
Page - 32-06
Reissued: August 1, 1986
2B18
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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