MyChron4 660
User Manual
Release 1.03
www.aim-sportline.com
5
1.2 – How to install MyChron4 660 on Junior Dragsters
One of the main uses of the gauge is to allow the mechanics to set up engine’s
carburetion in the staging area immediately before the race start.
To make this easy, it is suggested to install the gauge in a place where the
mechanics may see the display while working on the engine.
Behind the body cell on the vertical metal bulkhead which separates the racer’s
seat from the engine is a commonly used location. More specifically, as shown in
the following drawing, AIM recommends all MyChron4 660 users to install the
gauge under the engine’s ON/OFF switch.
The gauge has to be mounted on a self-made bracket as shown in figure above.
The bracket has to be made of aluminium or steel, and its thickness must be
0.1 “(2.5 mm) or more in order to have a high stiffness and resist vibration when
the engine is turned on.
Firmly fix the bracket to the vertical metal bulkhead and then fix your MyChron4
660 to the bracket.
Do not over-tighten the 8 mm mounting nut. Over-tightening the nut may cause
damage to the display unit casing.
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