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DB No.
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Year
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Subject
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1
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2010
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Issue of Burning of Radiator Cooling Fan Cables in EMD locos.
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2
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2011
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Modification/Rectification in manufacturing process of controller ASM Dynamic in EMD locomotives supplied by M/s Kay Sons Electrical Pvt. Ltd. Varanasi.
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3
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2012
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Issue of failure of amphenol plug of engine governor (Woodward) in HHP locomotives.
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4
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2013
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Issue of Failure of Inverter Card of Air Conditioning Unit Supplied by M/s DPG/USA.
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5
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2014
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Deletion of Low coolant level Sw in 4500 HP WDG4/WDP4B/WDP$D Locomotive
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6
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2010
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Provision of microprocessor driven Speed indicator on ALCO locomotives in place of conventional standalone speed indicator cum recorder.
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7
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2011
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Issue of failure of locomotive no. WDP4B-40021 due to abnormal operation of PCS circuit.
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8
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2012
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Use of additional Horn Push Button switch for assistant loco Pilot in control console #1 & #2 in WDG4/WDP4B locomotives.
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9
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2013
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Modification of Indication Light Panel ASM to DRG No. 10622773/DLW Part No. 18000162 for WDG4/WDP4B Locomotives supplied by M/s Trolex/Bangalore & M/s Pricol/Coimbatore.
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10
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2014
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Relocation of Alarm Bell in Control Console #1 & #2 in WDG4/WDP4B Locomotives.
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11
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2012
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Indication/Crew message provision regarding failure of Turbo Lube Soak Back Pump Motor in HHP locomotives.
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12
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2013
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Use of LED based cab light with spot light in place of lamp/CFL type cab light in HHP and ALCO Locomotives
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13
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2014
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Modification in end terminal of Head Light resistor 3.75 Drg. No. 8429166 Pl no. 18300352 used in 4500 HP WDG4/WDP4B/WDP4D Locomotives.
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14
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2012
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Modification of Location of Head Light Resistance ASM & removing mesh type cover ASM (short hood side) in HHP Locomotive.
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15
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2013
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Issues of Loco Failures due to breakage of wires in Governor Plug
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16
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2014
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Application of Silicon Grease on housing hole o manual push button of Radiator Fan Contactor (ECC3#3} in HHP Locomotives.
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17
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2012
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Issue of Burning for removal of RC circuits (Snubber Circuits) from Traction alternators of 4000/4500HP HHP Locomotives.
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18
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2013
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Fitment of cab fan without resistor in HHP Locomotives.
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19
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2013
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Modification in electrical circuit to avoid discharge of battery in HHP locos due to repeated cranking.
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20
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2013
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Modification in electrical circuit to avoid descharge of battery in operation in both cab during locomotive shut down condition.
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21
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2013
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Taking precautions during meaning and welding to avoid the failure of Diodes & fuses of traction alternators for HHP Locomotives.
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