Robinison 22HP Manual
35
STEP 57 Top Shroud Installation
Before the cabin can be installed the top
shroud needs to be fitted. Remove the rotor
head assembly and insert through the finished
fiberglass shroud. Ensure that the washout arm
pushrods are connected to the “A” pushrods
and that the longer “C” pushrods are attached
to the short steel balls on the bell mixer.
Holding the shroud against the rotor head,
insert the main shaft into the upper bearing and
slide into position. Make sure that the mast
stopper is correctly installed with the step
towards the ball bearing. Attach the bottom
M3x16 socket cap screw and locknut through
the autorotation unit. Press down on the main
shaft (make sure the main shaft spins) and
tighten the set screws to secure the mast
stopper using threadlock.
Lift the shroud and connect the plastic washout
links to the short steel balls on the inner race of
the swashplate and the long “C” pushrods to
the long balls on the inner race.
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Front Landing Gear
Brackets x 2
STEP 58 Cabin Installation
Loosen and remove the two front M3 locknuts
from the landing gear (use the 5.5 nut driver for
access). Tip the cabin forward and slide over the
mechanics being careful to position the slot in the
bottom of the cabin with the rubber isolators on the
front landing gear. On top, flex the top of the cabin
to overlap the top shroud and press the rubber
grommets over the cabin body mounts. Attach the
two front landing gear brackets and replace the M3
locknuts to secure the cabin in place. It is recom-
mended to bond a 1” square piece of rubber or
soft velcro under each of the front brackets to
avoid the fiberglass from cracking over time due to
engine vibration.
Insulator material
below brackets.