STARTING PROCEDURES FOR SD40-2 DIESEL ENGINE

PRESTART INSPECTIONS
Check air compressor , Engine for proper lube oil level & check level in water level sight gauge.

Full
gallon
Oil stick
Sight
gauge

Good
Oil stick

• Check Air compressor for proper lube oil • Check engine lube oil. • Check Water level sight guage.
level. • First remove oil inspection stick and • Check on sight gauge , it
• First remove oil inspection stick and check, It should be indicate between should between “low & full”.
check, it should be indicate "full gallon“. “low & full“.
• If there is oil gauge than it should be
always in good position.

Note:- If anything found abnormal than Information must be given to maintenance team.
 STARTING PROCEDURES FOR SD40-2 DIESEL ENGINE
PRESTART INSPECTIONS

• Make sure that overspeed trip (OST) mechanism is set to • Check to be certain that the crankcase pressure and low
normal position on Governor. water pressure detector reset buttons are set (pressed
• Check that the governor low oil pressure trip plunger is set, in).
• Check oil is visible in the governor sight glass. • If either button protrudes, press and hold button for
five (5) seconds immediately after engine starts.
 ENGINE STARTING PROCEDURE

Battery knife switch (BATT SW) is At the driver control At the fuel prime/engine start
At the engine control
closed on upside. Check that the starting
panel, set the console, set the switch (FP/ES) turn to PRIME
fuse in good condition. Verify that the isolation switch to generator field switch position for 10-15 sec after that
auxiliary generator (AUX GEN) circuit the ISOLATE and engine run switch Manually press advance injector
breaker is closed on upside. On the position. to the OFF (down) control lever and fuel
electrical cabinet close all the breakers on position. Set the prime/engine start switch
up side except ENGr aux & HLPR. control and fuel pump (FP/ES) to ENGINE START
Note:- Do not crank engine for more than 15 seconds with starting switch to the ON (up) position and hold the switch in
motors. After attempt crank, allow minimum of 2 minutes for starter position. this position up to engine fire
motor cooling before attempting another engine start. but not more than 15 second.
 STOPPING ENGINE
Before proceeding for stop engine, Do below inspection and procced for shutdown.

Throttle
handle
Stop push
button

• Move the throttle to the • The isolation switch • The stop button can be • Remove the Knife switch.
IDLE position should be placed to pressed in to stop the
isolation position. engine. Since the
reaction of the stop
button is instantaneous,
it need not be held in.

Note:- After Stopping engine, No removal of knife switch cause be battery drain and Engine mayn't start again without battery charging
 LOCOMOTIVE MULTIPLE UNITS
When coupling units together for multiple unit operation, the procedure below should be followed:

COUPLER

MU
CABLE

• First Couple the Locomotive and

stretch to ensure couplers are • Connect air brake hoses (CG, CP, ACT REL, A&R )between units
locked. as shown in figure.
• Install control Multiple unit (MU) • After connection , Ensure the length of Air brake hose pipes it should not
cable between units. touch to ground. If it is touching to ground Pls use chain to secure it.
• Ensure that MU cable should be • After connection of hose pipes ensure to open all connection cocks as
lock with MU socket cap. shown in figure.
 LOCOMOTIVE MULTIPLE UNITS

CC3038

LEAD LOCO-A TRIAL LOCO-B

Automatic Lead /Trial switch
brake
Power handle
Brake cut out

Throttle handle
Independent This switch located at driver control desk
brake
• Loco-A Reverser handle
 Put MU switch to lead position.
• Loco-B
 Put MU switch to Trial position.
• Loco-B • Loco-A
 Put brake cut out switch in cut out position.  Put brake cut out switch in cut in position.
 Move automatic brake handle to hand off position.  Move automatic brake handle to charge position.
 Release independent brake.  Apply independent brake.
 Put throttle handle, reverser and power Handle in neutral position.
 LOCOMOTIVE MULTIPLE UNITS

CC3038

LEAD LOCO-A TRIAL LOCO-B

Precautions:-
• In trial unit (loco B)- Put engine run (ER) switch in off position. Putting in “on” position- Loco may not come idle during PCS
open.
• When PCS open than operate Automatic brake handle in emergency position in Loco-A(lead loco) only. Don’t disturb trial
loco (loco B) handle position.
• During Air brake hose pipes connection always ensure pipe length and secure properly to prevent any damages.
• During uncoupling of wagons-loco - Always put Air brake hose pipes in their hooks to prevent any pipe damages.
• During MU cable connection – Always secure cable with chain to prevent any damages.