1.0 Locomotive Speed Limiter (LSL) Departure Test

1.1 Departure Tests Requirement

· On a single locomotive unit equipped for operation in the forward direction, make the test in the forward direction only.

· On a consist of two or more locomotives, make the test on both ends of the consist.

1.2 Set Up—Lead Locomotive

a) Automatic brake cut IN and handle in the RELEASE position.

b) Independent brake cut IN and in the FULL APPLICATION position.

c) Reverse Lever in the FORWARD position.

d) Generator field switch in the ON position (GE locomotives only).

e) Isolation switch in the RUN position.

f) Air cut-out cock in the OPEN position.

g) ATC breaker in ON position.

h) Logic box cut-out switch in ON or LSL/CS position and secured.

1.3 Set Up—Trail Locomotive(s)

a) Automatic brake cut OUT and handle in the HANDLE OFF position.

b) Independent brake cut OUT and in the RELEASE position.

c) Reverse lever removed.

1.4 LSL Self Test

Perform LSL System self-test by pressing the mode switch to advance the indicator to SELF TEST mode.

NOTE 1. Whenever a do Air message is displayed, the LSL System will wait indefinitely until air is recovered by moving automatic brake to the RELEASE position and the independent brake handle to the FULL APPLICATION position.

NOTE 2. Test mode cannot be exited without running a successful self-test.

The LSL will run its self-test, which takes about 30 seconds. During this test, the LSL will do the following:

a) Display software version number for five (5) seconds. (Make note of this number.)

b) Display any faults from prior running for
two (2) seconds for each fault. Do not press mode button at this time. This will cause the system to abort the test and go to the Cab Signal Test mode.

c) Light all LED’s one at a time, check brightness, and then turn them off one at a time. Watch for burned out lights and digit segments.

d) Test the LSL alarm.

e) Test the Logic Box electronics.

Test No.	Test	Fault No.
03	Horn Test Audible Sounds	—
04	RAM Test Electronics Self Test	08
05	System Watchdog Electronics Self Test	29

f) De-energize magnet valve causing a penalty brake application. Person testing must recover from penalty in normal manner as described in Note 1.

g) When the System LSL self-test has been completed and the system is free of faults, the display will read “run”, indicating that the system passed the self-test. The unit will automatically exit to the Non-Cab mode in five seconds.

h) If the LSL fails any test during self-test, it will display an associated fault code and an error code ”err” upon completion.

If a fault appears, make a note on the Crew to Crew Information Form and report fault to Locomotive Specialist.

1.5 Critical Faults (Display “C”)

When a fault is a Critical Stop fault, the locomotive will receive a penalty brake application if an attempt is made to move. If the fault is a Critical Limited Fault, do not exceed restricted speed regardless of cab signal indication.

1.6 Clearing Faults

To clear a fault, repeat the self test by pushing the mode button once. Fault cannot be cleared without running a self-test. Test mode cannot be exited without running a successful self-test.

Move automatic brake handle to SUPPRESSION position and the independent brake to RELEASE position. Push the mode button to the “Self-Test” mode.

The display should show software version and a “do Air” message will appear. The “do Air” message will remain until you move the automatic brake to the RELEASE position and the independent brake is in the FULL APPLICATION position.

Return the automatic brake to the RELEASE position and the independent brake to the FULL APPLICATION position. The LSL will run another self-test. Upon completion, it will exit to “Non-Cab” mode.

2.0 Departure Test for Locomotives Equipped with Cab Signal Self Test

2.1 LSL Equipped Units

Cab signal departure test can be performed in either “CS Only” mode or “LSL/CS” mode. The test cannot be exited without running a successful cab signal self-test.

2.2 Test Procedures

a) To enter the cab signal self-test, the automatic brake must be in the RELEASE position and the independent brake must be in the FULL APPLICATION position.

If the locomotive air brake controls are not set up properly, the LSL will display a “do Air” message until the air brake handles are moved to proper position. The reverser handle must be in FORWARD position and the generator field switch must be in ON position (GE locomotives only)

b) Press the mode button to advance into “Cab Signal Self-Test”. The LSL display will display the following:

1. Software version.

2. “PS NOR” (press mode button once to advance if it does not do automatically.)

3. “PS LO” (press mode button once to advance if it does not do automatically.)

4. “50 CLR”

5. “30-A” (acknowledge cab signal change).

6. “20 APP” (acknowledge cab signal change).

7. “20 RES” (acknowledge cab signal change).

8. “50 CLR”

9. “50 LO” (Do not acknowledge cab signal change).

10. Locomotive goes into penalty braking after the expiration of a time period not exceeding eight (8) seconds.

11. LSL displays “do Air”. The “do Air” message will be displayed until air is recovered.

12. Place automatic brake handle in SUPPRESSION position until PCS is reset and acknowledge cab signals.

13. Air is recovered, test continues.

14. “-1-“ (receiver bar coil resistance test).

15. “run”

16. Automatically exit to Non Cab Mode.

c) If any faults were encountered during this test an error message will be displayed at the end of the cab signal self-test. Make a note of the faults and repeat the cab signal self-test by pushing the mode button once.

d) When no faults are found, the display will read “run” on completion of the self-test. System will automatically exit to Non Cab Mode.

e) Cab Signal Test form must be completed, dated, and signed indicating that the cab signal system was tested and functioned properly.