Nose Gear Installation - Rans S-21 OUTBOUND Text Manual

Rotax 912uls installation

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Table Of Contents

Table of Contents

RANS S-21 OUTBOUND

NOTE: Nose Gear Mount should be final installed after firewall is in place.

Support the fuselage on sawhorses and bolt the Nose Gear Mount to the firewall.

Slide the Nose Gear into the Nose Gear Socket. Use a rotary file to remove

excess coating in the Nose Gear Socket.

CAUTION: Do NOT remove excessive material. The Nose Gear must fit

tight in the Socket.

Mark a ring 3/8" from the top end of the Nose Gear.

Insert the Nose Gear into the Gear Leg Socket until the line is visible in the hole.

NOTE: To verify that the Nose Gear is in the correct position, measure the

distance from the end of the Nose Gear to the upper edge of the Gear

Socket. This should be about 1/4". See FIGURE 08A-10.

Rotate the Nose Gear until it is 90-degrees from the Spar Carry-thru on the

Fuselage.

It may be desirable to build a fixture to hold the gear leg in place. See

FIGURE 08A-12.

Transfer drill #11 the Nose Gear through the Gear Socket hole just deep enough

to mark the Nose Gear.

Remove the Nose Gear. Drill #11 using a "V-block" in a drill press to center the

Nose Gear when drilling.

Transfer drill "Letter D" through one side of the Nose Gear Collar. Refer back to

FIGURE 08A-10.

10.

Slip Nose Gear Collar onto lower end of Nose Gear. Align holes and transfer drill

"Letter D" through the other side of the Upper Fork Collar.

11.

Ream to 0.249" and bolt in place.

NOTE: If using a fixture to lock the leg for drilling leave the Collar off till

drilling is complete.

12.

Re-install the Nose Gear in the Gear Socket and fixture. Transfer drill through

#11.

13.

Chase drill 6.2mm, then ream to 0.249". Bolt in place.

14.

Seat the Spring Washers by sanding on a sheet of 400-grit sandpaper. Refer to

FIGURE 08A-20. This will help prevent premature wearing of the Spring

Washers.

IMPORTANT: Before installing the Nose Gear Fork to the Nose Gear

Strut inspect the Fork for stress risers.

TEXT MANUAL

ROTAX 912 ULS INSTALLATION