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elektro
Skalar
18
1.10 Collective pitch compensator and swashplate
(bag UM-8)
The collective pitch compensator 4618.47A is assembled as shown in the drawing.
The first step is to fit a circlip on each of the brass pins and glue them in the holes in the collec-
tive pitch compensator hub 4618.46 using bearing retainer fluid, with the circlips resting in the
recesses. Remove any rough edges from the collective pitch compensator arms and fit them on
the projecting end of the pins, fitting at least one shim washer between hub and arm; the arms
must rotate freely on the pins; if not, de-burr the holes. When you fit the outer circlips there
should be no axial play in the arms on the pivot pins; if there is, fit additional shim washers to
take up the slack.
Make up three pushrods as shown in the drawing, using three threaded rods 1291.10 (2,5 mm
Ø, 75 mm long) and six ball-links 4618.155; the stated dimension refers to the free length bet-
ween the ball-links.
One pushrod should be attached to the rear point of the swashplate linkage; fit it over the guide
spigot on the swashplate 4682.45 and press it onto the linkage ball located at its base, then fit
the brass sleeve (from 4618.113) on the guide spigot and grease it well. Slide the swashplate
onto the main rotor shaft, slipping the pushrod (already connected) down through the opening in
the rear of the dome bearing holder; you will need to flex the swashplate guide 4618.113 back
carefully to allow the brass sleeve on the swashplate spigot to engage in the guide channel.
Fit the collective pitch compensator on the main rotor shaft, and press the two ball-links onto the
linkage balls on the swashplate inner ring; the balls concerned are indicated in the drawing.