Installing The Motor - GRAUPNER heim UNI-Mechanik 2000 Mode D'emploi

UNI-Mechanics 2000
The main rotor shaft now projects from the crown gear flange at the bottom. Fit the following
parts on the projecting end in this order: one shim washer 4450.40, the spur gear unit and
freewheel (engage the spur gear with the layshaft pinion as you do this), a further shim washer
4450.40 and the annular clamp 4448.156 (with the support flange facing up). Apply a little
grease between the shim washers and the freewheel hub at top and bottom. Slide the annular
clamp up the shaft and position it so that the spur gear on the freewheel is free to rotate on the
shaft, but without any detectable play in the assembly on the main rotor shaft. Tighten the
annular clamp.
The gearbox should now revolve freely, without binding or jamming at any point; if this is not the
case, you need to make further adjustments as described above.

1.6 Installing the motor

(bag U2-2)
1.6.1 Preparing the motor
This mechanical system is designed for a motor with a long ground Graupner / Heim crankshaft
(8 mm Ø). Other motors can be fitted at your discretion, but you will need to use the optional
plain-bearing clutch which is available separately.
Select the appropriate clutch bell and pinion to suit your motor and the reduction ratio you intend
to use (see table, page 6). If you are using an existing clutch bell (conversion project, new
motor) you must first ensure that the clutch bell is fitted with the correct pinion; if necessary fit
the appropriate replacement pinion. Note that the pinions used with our ballraced metal clutch
bells feature a left-hand thread.
To replace the pinion, unscrew the existing unit clockwise, and screw the replacement into the
bell anti-clockwise after applying a little thread-lock fluid. It is important that the spacer sleeve
between the two ballraces is the correct length. If you wish to use the existing ballrace, first
push it out of the pinion by pressing on the outer ring using a suitable mandrel. To replace the
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