Page 73
Heat Exchanger
Voith Turbo I Aftersales Service Manual Voith Retarder VR 115 E I Repair
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200
5
Checking
1. Attach pressure test equipment (50/22) to heat
exchanger (6400) with O-rings and attach the
compressed-air line to the connection.
2. Fill cooling water section of heat exchanger (6400)
with hot water (approx. 70 °C).
3. Slowly pressurize heat exchanger (6400) with
compressed air from 0 to max. 10 bar.
4. Repeat Steps 1 through 3 at connections "B" and
"C".
Heat exchanger leaky!
Retarder fault.
Ö
If air bubbles appear in the water or an external
leak is detected, replace the heat exchanger.
50/22
C
6400
A B
28068
CAUTION
