Loco
Right Side
Nose Compartment
CCB unit, KE
Valve, Dead engine COC, SH Sander magnet valves, SH Horn magnet valve Behind
ECC
Misc. Safety items (PT Phone &
Poles, MU Jumper cable, BP / FP hose, skids)
TCC compartment
TCC Cabinet consisting of Traction
Converter / Inverter (1 & 2) with blowers & Traction Control computers
Above
TCC
DB Grids 4 Nos. each side with 2 DB Blowers
Clean Air Compartment
TM Blower & TA /
Rectifier Block blower (Single Unit)
Dust Bin Blower (Dust Exhaust / Inertial Filter Blower)
TCC Electronic Blower (GTO Locos
only)
Crow bar resistor or IPR (Additional
Brake Chopper in Medha)
Baggy Filters
TA Mounted Rectifier panel
RADAR Magnet Valve.
Generator Room
Traction Alternator with Companion
Alternator
Ring Gear
Turbo, After Cooler with water inlet
& outlet pipes (For BAP supply to Air box)
Eductor tube with oil separator
& BAP Pipeline
Engine Room
Engine Block with Lube Oil Dip Stick
Top Deck covers
Air Box and Crankcase Inspection
Covers
De-Compression plug
Exhaust Manifold.
Accessories Room
WW Governor, governor booster pump
or MCBG Actuator
EPD (LW Pressure & CC Pressure
trip buttons)
LW testing COC (EPD Test COC)
Hot Oil Detector
Lay Shaft
Water Pump with ETP1 & ETP2 on
Suction side pipe
Scavenging pump
Main Lube Oil Pump with Piston
Cooling Pump (single unit)
Water drain Cock for draining water
(in pit)
Expansion Tank with pressure Cap,
Pressure Release Valve and Vent pipe.
Fuel oil Filter condition Gauge with
bypass valve
Water Level glass tube
Engine Start Switch(EST) if Governor
Booster Pump not provided
Hand Brake Assembly near ECC3
ECC3: MRPT, Radiator Fan Contactors with Fuses
or Breakers
Behind ECC3 / compressor room: MRPT COC with Quick Connector
Compressor
Room: Compressor
Unit, Magnet valves for LH Sanders, LH Horn, MVCC -(compressor loading &
unloading) & MVEBT – (Control ABD valves for auto drain
Loco
Left Side
On the Foot Plate 800 A Starting Fuse
& Battery Knife Switch
Generator Room: Traction Alternator with Companion
Alternator, Ring gear, Turbo, After Cooler with water inlet & outlet pipes and
Auxiliary Generator with AG Drive shaft.
Engine Room: Starting
Motors, Turbo Lube Oil Filter, Turbo Lube oil pump & Soak back filter,
Engine block with dip stick, Top deck, Air
box & crankcase inspection covers, De-compression valves
(Cyl. Count 1 to 8 & 9 to 16 from
Free end)
Accessories Room: Spin-on Filters with fuel oil return
sight glass and bypass sight glass, OSTA, Water Pump, Lube Oil Strainer,
Expansion tank, Suction strainer, Fuel Oil Pump, Primary Filter with a Drain
COC, Lube Oil Cooler & Lube Oil Filter, Lube Oil Filter Condition Gauge
with bypass valve, Air lock releasing COC below Lube oil filter(Fuel oil
system)
Compressor Room: Inter Cooler with Safety Valve,
Compressor with Breather Valve and Compressor Dip Stick.
Radiator Compartment
Radiators on top with 2 Radiator
Fans, MR Cooling Coil, 2 Fiber Glass Filters for LP Cylinder inlets of
Compressor
Under
Truck (From Cab End)
Loco Left Side:
BC
Eq. COC & MR Eq. COC (Not provided in WDG4 locos))
Sand
Box for Wheel L1 & L3
Fuel
Oil Tank with Gauge
ECC2
(Electrical Control Cabinet 2) consisting of Cranking Contactors – ST, STA,
Battery Charging Unit, Auxiliary Generator output Breaker
Radar
for lateral Speed Sensing with Air Blow Pipe
Sand
Box for Wheel L4 & L6
Loco Right Side:
BC Eq. COC & MR Eq. COC (Both
Ends)
BP
& FP additional COCs (Both Ends)
BC
COC for Truck No. 1
Sand
Box for Wheel R1 & R3
MR1
J Filter with COC & Drain cock
MR2
J Filter with COC & Drain cock
Air Drier, Main FP COC
MR2 & MR1 with ABD Valves
Fuel
Oil Tank with Gauge
Battery
Box
Sand
Box for Wheel R4 & R6
Feed
Valve for FP
BC
COC for Truck No. 2
NOTE: In WDG4, WDP 4B & WDP 4D ECC2,
RADAR and Battery Box location is interchanged.
AEB COC is provided in left side of
loco below cab in some locos.
