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90 – SS Idle Speed Not Reached
ZKP-Number: 2.1090.925
Yellow alarm; warning
Cause
Corrective action
Idle speed not reached.
1. Check battery.
2. Check wiring and voltage supply.
3. Initiate new starting attempt.
4. Request towing locomotive if required.
91 – SS Release (Run up)Speed Not Reached (< ~300 RPM)
ZKP-Number: 2.1090.924
Yellow alarm; warning
Cause
Corrective action
Runup speed not reached.
1. Check battery.
2. Check starter.
3. Initiate new starting attempt.
4. Request towing locomotive if required.
92 – SS Starter Speed Not Reached
ZKP-Number: 2.1090.923
Yellow alarm; warning
Cause
Corrective action
Starter speed not reached;
termination of starting
sequence; starter does not turn
or turns slowly.
1. Initiate new starting attempt.
2. Check voltage at starter power supply.
3. Request towing locomotive if required.
93 – SS T-Preheat
ZKP-Number: 2.1090.922
No alarm, fault is entered
Cause
Corrective action
Preheating temperature too low;
coolant temperature too low for
engine start. Significantly
increased engine wear. Engine
start might be inhibited by the
locomotive control system.
Engine may be started in
emergency situations only.
1. Extend preheating period.
2. Check preheating unit.
MS15033/02E 2015-02
| Troubleshooting | 47
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