Railway Equipment 934, Operating Manual

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P/N R9340-0104 31 © 2010 RAILWAY EQUIPMENT CO.
REV B
5/11
C. LOW AIRFLOW
1. Check for obstructions in all ductwork and the air intake.
2. If there is frost buildup on the air intake screens, move the screens
to the “open” position.
3. Check the voltage and current levels on the blower motor.
4. Make sure knockouts on the track duct are pushed all the way back
in the track duct.
5. Check the spacing between the inlet cone and the blower wheel.
The gap should be less than 1/16 of an inch.