Turbo-Fan 4000
Page 2 of 4
The rotor retaining screw can now be tightened fully. Please observe the procedure described below. This is
essential
.
With your left hand grip the rotor in such a way that at least three fingers make contact with the
hub on the inside
, so that it
can be held securely, and prevented from moving.
Now use the allen key to tighten the rotor really firmly.
CAUTION:
never
attempt to hold the rotor by the
outside end of the blades
,
and do not use any
mechanical aids or clamping tools
, as this would result
in permanent damage and destruction of the rotor.
Caution:
some motor shafts feature a ground-in “flat”, but you must avoid
these, as the flat may cause the taper collet to have insufficient grip. Use a
motor with a plain, cylindrical shaft.
Carefully turn the rotor by hand, and check that it is completely free to rotate
(important).
The impeller unit may only be operated when installed in a model, or on a test-
stand fitted with a suitable safety guard system.
When you undo the M5 screw you may find that the rotor is very difficult to
separate from the taper collet. If this should happen, undo the screw only
slightly, then tap the screw
lightly
with a small hammer and pull off the rotor.
If the Turbo-Fan 4000 is to be installed inside a fuselage, note that the edges
of the air intake openings in the fuselage must have a radius of at least 5 mm.
The Turbo-Fan should be installed as close to the jet efflux (tail end) of the
model as possible, and the inside surfaces between the Turbo-Fan and the
efflux should be perfectly straight and smooth.
The impeller unit in use
1) The Turbo-Fan may only be operated in the fan ring. Do not stand in front
of the Turbo-Fan, nor to one side of it.
2) Do not run the Turbo-Fan unit when holding it in your hand - injury hazard.
3) The taper collet must be really tight to ensure that the rotor does not come
adrift at high rotational speeds. Check the Turbo-Fan before every flight.
4) Remove all objects from the area in front of and to both sides of the impeller, and also close to the intake, as they may
be sucked into the assembly and cause damage to the rotor.
5) If the rotor should be damaged, it must be replaced. Do not attempt to repair it.
6) If vibration occurs, check the balance of the rotor immediately.
7) We are unable to monitor how you assemble and operate it, and for this reason you use the impeller at your own risk.
8) Run the motor slowly at first; if the rotor spins freely and smoothly, it is safe to increase rotational speed.
9) The maximum permitted rotational speed is 24,000 rpm, and this value must not be exceeded.
Important notes: please read carefully and observe at all times !!
Safety instructions concerning the use of the Turbo-Fan 4000
These safety instructions are intended to protect you from dangerous situations and / or damage to property. The gravity of
the potential hazards is indicated by the terms «Caution», «Warning» or «Danger».
To ensure your safety, please take the trouble to read and observe these instructions and other safety notes.
This information should be considered as an integral part of the installation / operating instructions.
The instructions include the internationally recognised safety symbols. Please observe them in order to protect yourself from
possible damage and injury.
Caution: operator errors can lead to hazardous situations for persons, and damage to property.
Warning: errors in operating the unit may lead to serious injury and damage to property.
