Reference
Modification no.
- 0 -
Page
60
Date
1997 02 01
Main
914 F
01476
9.5.5) 3 way solenoid valve (economy valve)
The TCU controls the 3 way solenoid valve as well, which brings about that
the varying pressure acts upon float chamber. For further information refer to
chapter 9.2.5.
â—† NOTE: The solenoid valve is inactive below the threshold.
9.5.6) PC interface
The TCU incorporates a sequential interface. By using a specially developed
program all input and exit signals of the TCU can by observed, checked and
if need be recorded.
This program allows quick and efficient error diagnostic without disassem-
bling the complete control unit.
With this program the operation of the 2 pressure sensors, temperature
sensors, rev pick-up, throttle and waste gate position and a lot more can be
supervised and recorded.
â—† NOTE: This system works "online" i.e. if need be also during
engine operation.
If allows the engineering staff to check and record TCU data during flight.
These recordings can then be evaluated on a graph and facilitate problem
finding. Further on, these recordings can be used as document for engine
repair and overhaul.
â—† NOTE: This communication program is not in the supply volume of
the engine but is readily available as spare part from the
respective dealer.
To Next Page
Loading...
Need help?
General
