check sheets of ac dc emu - cr.railnet.gov.in sheet ac-dc... · check tan delta of main bushing ......

CHECK SHEETS OF

AC DC EMU

CHECK SHEET EQUIPMENT : BL BOX TYPE & MAKE : S.No. :

Coach No. Last Date of Overhaul Date

Actual Coach Nos. Sr. No. Testing Particulars Standard

Parameters

1 Visual checking before dismantling

a. Condition of Switch Knob No crack /Broken

b. Operation of Switch Proper

c. Operation of Programme Switch Proper

2 Check during O.H.

a. Replace/ check all Cam Switches Replacement in 4th POH

b. Replace /check Programme Switch Type 3LA O- 250-5YW/180W

Replacement in 4th POH

c. Indication Lamp with Holder New

d. Condition of Connecting Block No Broken

e. Condition of Separator of Cam Switches Not Broken

f. Replace /check the Spring ( BL Key) Replacement in 4th POH

g. Replace/ check the Spring ( Cam Switch)

Replacement in 4th POH

h. Operation of Cam Switch Normal

i. Gap between Roller & Cam Switch One mm

j. Lubrication ( Oil 3 in 1) of Cam Switch Lever Done

k. Rubber gasket & grommet New

l. Condition/ provision of bottom Anti- dust plate Check/ provided

m. Check Milli volt drop of limit switches.

3 Testing After Assembly

a. Continuity of Cam Contacts OK

b. Operation of Switches as per Sequence OK

c. Operation of BL Key Free

Date of Overhaul

Token No : Name & Designation : Signature (JE / SE)

CHECK SHEET

EQUIPMENT : HIGH VOLTAGE DETECTION (HVD) PANEL TYPE & MAKE : BHEL make S.No. :

Taken out from Coach No.

Last Date of Overhaul Date

Fitted on Coach No. Sr. No. Testing Particulars Standard

Parameters


a. Condition of Resistance No Broken / No Damage

b. Condition of Capacitor No Damage

c. Condition of harting connector male pins No Damage

d. Condition of Connection Block No Damage / No Crack

e. Setting of AC over current relay 0.95A 50% 0.1 sec

← ↑ →

2 Check during O.H.

a. Continuity of Fuse ( 2 amp., 500 V) OK

b. Resistance value of Top Bobbins (4 nos.)

47 K-Ohms / 100 Watts

c. Resistance value of Bottom Bobbins (4 nos.)

127 K-Ohms / 100 Watts

d. Frame Resistance 01 K-Ohms / 35 Watts

e. Value of capacitor ( 11C4 ) 0.22 micro farad


a. Tightness of all contacts. Tighten

b. Continuity of fuse OK

4 Remarks

Date of Overhaul

Token No :

Name & Designation : Signature (JE / SE)

CHECK SHEET

EQUIPMENT : AC LC / DC LC (CONTACTOR) TYPE & MAKE : BEMS 08.08 / BEMS 15.08 & BHEL make S.No. :

Taken out from

Coach No.



Parameters


a. Condition of Arc Box No Flash /No Crack

b. Condition of Top & Bottom Tip No flash / No Pitted

c. Condition Magnet Coil No Damage

d. Condition of Main Contact Plate No Flash / Damage

e. Condition of Arc Box fitment Latch No Damage

2 Check during O.H.

a. Resistance value of Magnet Coil. 340 -380 Ohms

b. Condition of Interlock Cam Roller No wear

c. Operation of Inter Lock Free

d. Contact of Inter Lock OK

e. Condition of Spring of Interlock Old / New

f. Arc Box Holding Lever OK


a. Operation of Contactor (min 70 V DC) Free Moment

b. Bedding of Top & Bottom Contact Carbon paper Impression

pasted

c. Continuity of Interlock in ON & OFF OK

d. IR Value at 1.5 kV Min 10 M-Ohms

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : AC CC / DC CC (CONTACTOR) TYPE & MAKE : HAS / HS1 & BHEL make S.No. :



Fitted on coach No. Sr. No. Testing Particulars Standard

Parameters


a. Condition of Arc Box No Flash / Crack

b. Condition of Top & Bottom Tip No flash / pitted

c. Condition Magnet Coil No Damage

d. Condition of Main Contact Plate No Flash / Damage

e. Condition of Arc Box fitment Latch No Damage

2 Check during O.H.

a. Resistance value of Magnet Coil. 340 - 380 Ohms

b. Condition of Interlock Cam Roller No wear

c. Operation of Inter Lock Free

d. Contact of Inter Lock OK

e. Condition of Spring of Interlock Old / New

f. Arc Box Holding Lever OK


a. Operation of Contactor (min 70 v DC) Free Moment

b. Bedding of Top & Bottom Contact Carbon paper Impression pasted

c. Continuity of Interlock in ON & OFF OK

d. IR Value at 1.5 Kv Min 10 M-Ohms

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : TRANSFORMER

TYPE & MAKE : BEMS 08.08 / BEMS 15.08 & BHEL make S.No. :

Taken out from Coach No. Coach No.

Last Date of Overhaul

Date Date


Parameters


a. Condition of Breather No Damage

b. Condition of main bushing No Damage / flash mark / overheating

/ oil leakage

c. Condition of equipment bushing

( bushing extender of equipment bushing (750 S1 series))

No Flash

d. Condition of HT Terminal Bar No Flash

e. Condition of Oil Circulating Pump OK

f. Check tightness & sealing of basic insulating plug. Tighten

g. Replace bushing turret gasket 4th POH

h. Check oil level & top up if necessary checked

i. Check earthing of elbow termination point. checked

k. Check transformer drain plug & seal for looseness checked

l. Condition of contact dial thermometer OK

m. Check all HT connection & other nut bolt for tightness. checked

n. Condition of Oil Circulating Pump bellow OK

o. Check oil leakage from joints. No leakage

p. Check condition of safety valve. OK

q. Check condition of cable head

termination & its grommets, condition of CHT insulator on roof.

OK

Fitted on coach No.

Sr. No. Testing Particulars Standard

Parameters

2 Check during O.H.

a. Check the Oil Circulating Pump Proper Working

b. Check the coupling teeth No wear

c. Condition of Sensor (Oil Flow, Oil Level, Water Level) No Damage

d. Clean the Fans (4 Nos) Cleaned

e. Replace the Fan Bearing 2nd POH

f. Cleaning of Radiator by water jet cleaning

g. Clean the radiator by air blowing Done

h. Clean complete cable Done

i. Replace the Silica Gel Replaced

k. Apply fresh silicon grease on BIP busing after proper cleaning. used

l. Check IR value of CHT with 2.5 kV megger. (SMI 193) Value < 10 MΩ

m. HPT of CHT at 40 kV Leakage current should not more

than 2 mA.

n.. Check the condition of basic sealed elbow, cable adaptor, conductor contact & insulating plug of 755 LR elbow connector

OK

o. Condition of creep connector of CHT on roof. OK

p. Condition of screen wired ( through CT) & CT. checked

q. Check ET2 air gap & earth connector. 95 mm

r. Check proper cleating & rubbing of cable with sharp edges. checked

s. Check setting oil flow sensor , oil level sensor & oil temp indicator. checked

t. Check working of oil level indicator. checked

u. Clean all drainage of LT junction box cleaned

v. Check Tan Delta of main bushing (1kV) SMI 138

w. Oil centrifuging test to be done (SMI 158). Done

x. Carry out DPT of foundation bracket. No crack

z. Intactness of suspension rope. Intact

A1. Replace all foundation bolt 4th POH


Parameters


a. IR value between Earth & Terminal with 2.5 kV Megger Min 10 M-Ohms

b. Testing of Transformer Oil (DGA) Acidity Moisture

Done Report attached

c.BDV of Oil at 50 kV / Centrifuging of oil Done

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : 50 KVA / 20 KVA / 5.5 KVA INVERTERS TYPE & MAKE : BHEL make S.No. :




Parameters


a. Condition of Heat Sinks No Damage

b. Condition of Capacitors No Damage

c. Condition of Contacts No flash / Pitted

c. Condition of Earthing Clip No Damage

2 Check during O.H.

a. Clean by Vacuum Cleaner Cleaned

b. Visually check for any damages No Damage

c. Tightness of all components Intact

d. Condition of condenser & Inductor coil. No Damage


a. Check the value of condenser C1 & C2 / C1,C2,C3 & C4

b. Check the value of inductor coil L1 & L2

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : INDUCTOR VESSEL TYPE & MAKE : BHEL make S.No. :




Parameters


a. Check all the fixing bolts Proper intact

b. Condition of Jalli No Damage

c. Condition of inductor line filter No damage/ flash

d. Condition of safety chain OK

e. Provision of rain coat cover Provided

2 Check during O.H.

a. DPT of stripping bracket of inductor ( top & bottom)

Done No crack / Dent

mark

b. Cleaned by vacuum cleaner Cleaned

c. Condition of inductor coil No damage

d. Condition of three phase fans ( F1 & F2) No Damage

e. Condition of Temp. Sensor connection No Damage

f. Rubber Gaskets of frames New Gasket

g. Filter New

h. Foundation Bolt with washer New

i. Condition of Fan Bracket OK

j. Check condition of WAGO connection & terminal box connector (HT & LT) OK

k. Provides new grommets Provided

l. Condition of air guiders & air circulators OK


Parameters


a. IR value between Earth & HT Terminal by 2.5 kV Megger Min 10 M-Ohms

b. Continuity terminal to terminal OK

c. IR value check of LT connection by 500 v Megger Min 10 M-Ohms

d. Inductance of all four coils (mH) 1) 100 HZ filter coil 2) Line filter coil 1 3) Line filter coil 2 4) Line chopper inductor coil

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : MVCC TYPE : S.No. :




Parameters


a. Condition of assembly No flash

b. Operation of assembly Free movement

c. Condition of contact No flash / pitted

d. Condition of shunt No flash / strand cut

2 Check during O.H.

a. Cleaned the mica bar Cleaned

b. HPT of mica bat at 5 kV for one minute Leakage current not more than 2

mA

c. Cleaning of main contact Cleaned

d. Condition of insulator No crack / damaged

e. Replacement of springs Condition basis

f. Condition of rack & pinion gear No breakage / damage

g. Any foreign material in cylinder No

h. Smooth both surface Yes

i. Resistance of coil 850 to 950 ohms

j. Replace the gasket, inlet valve, valve steam, piston washer, Nylock nut New

k. Interlock assembly fixed & moving contact Proper contact

Sr. No. Testing Particulars Standard

Parameters Actual Coach Nos.


a. Operating the assembly at 70 V DC & minimum pressure of 3 Kg/ sq.cm. Working normal

b. Bedding of contact Carbon paper

impression pasted

c Leakage between magnet valve & cylinder ( check by soap water) No leakage

d. HPT test of assembly between main contact & earth at 5 kV for One minute.

Leakage current not more than 2

mA

4 Any other remark

a. All hardware to be used with thread lockner.

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : VCB TYPE : BVAC AUTOMETER S.No. :

Coach No.


Actual Coach Nos. Sr. No. Testing Particulars Standard

Parameters


a. Condition of insulator No Crack / Damage b. Condition of main contact No flash / pitted

c. Condition of Insulator Top Plate Not Loose

d. Condition of air pipe & coupling No Damage

c. Condition of socket plug No damage

2 Check during O.H.

a. Cleaning of contact plate Cleaned b. Cleaning of Insulator Cleaned

c. Tightening of Contact plate with base Done

d. Resistance of Set coil 800 – 880 Ohms

e. Cleaning of regulating valve pipe Cleaned

f. Tightening of electrical connection Intact

g. Check earthing connection 70 Nm torque

h. Change the complete pressure regulator in Alternate POH

i. Change the ‘O’ rings

j. Check the set valve of the regulator 4.5 kg/cm2 at 7 kg/cm2

k. Change the filter


a. Air leakage in regulator & pipe at pressure 6.5 Kg/ sq.cm. No leakage

b. Operating of valve at min. 70 V DC Working Normal

c. Contact gap & speed (computer test) Done

d. Gap of the contact (as per computer report) If less than 3 mm replace assembly 3 mm

e. HPT test between main contact & earth at 40 kV for one minute.


mA

f. Replace pressure switch complete Alternate POH.

g. Check the setting of pressure switch

Upper limit – 3.6 ± 0.1 kg/cm2 Lower limit – 3.2 ± 0.1 kg/cm2

h..Check the tightness of pneumatic connections

4 Check air leakage in Air tank

5 a. Check the Pneumatic circuit.

b. Sealing of connectors, flexible pipe regulator, air tank etc.

6 Change both Auxilliary switches in alternate POH

7 Check the healthiness of Vaccuum switch

tube (VST) Di-electric test at 40KV for 10 seconds.

No flashover / No tripping

a. Check closing and opening speed of VST

b. Inspection of main contacts war in VST

8 a. Change the Shock absorber in alternate POH

b. Check the proper tightness of Shock absorber at 10 Nm torque

9 Check the resistance of Holding coil 66.2 ohms + 8 % at 35 degree C

10 Check the contact spring. OK

a. Replace the contact spring Alternate POH

11 Lubricate toggle mechanism, air bellow regulator rod, verticle spring, flexible blades

12 Replace moleculars siekes of Air dryer Alternate POH

a. Maluring siens regenerated by testing at 200 degree C to 250 degree C for 8 hrs.

13 Testing of RC network

a. Indivisual resistance 4.7 ohms + 10%

b. Capacitance value 25 u F + 10%

14 Change the kit of ‘O’ ring of lateral cover New

15 H.V. Test of H.T. section at 40KVAC for 10 sec. No Flashover

16 H.V. Test of L.T. suction at 2KVAC for 01 min., No Flashover

17 Remarks 1. Replacement of component kit as per AAL POH Kit in alternate POH.

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : DC EARTHING SWITCH TYPE & MAKE : BHEL make S.No. :




Parameters


a. Condition of Mica bar No Crack / damage

b. Condition of Moving contact Blade No flash / pitted

c. Condition of Shunt No strand cut

d. Condition of fixed blade No flash

2 Check during O.H. ( to be dismantled during 3rd POH)

a. Cleaned the mica bar cleaned

b. Cleaning of shunt cleaned

c. Cleaning of contact cleaned

d. HPT test of mica bar at 5 kV for 1 min Leakage current not more than 2 mA.

e. Cleaning of disc, hinge rod, control lever OK

f. Condition of crank lever, lock( 1A-2B) OK

g. Tightness of flexible shunt on roof & earthing switch Tightened

h. Checking of distance ring, shaft, pins, guard, ‘O’ & V rings checked

i. Checking of contact spring, feather, nut bolts, washers, scraper ring, compression spring, axle ring, earthing shunt

Done


a. Operation of blade Proper movement

b. Contactor of fixed & moving blade Intact

c. Contact of moving blade & earthing blade. Intact

4 Remarks

Date of Overhaul

Token No : Name & Designation : Signature (JE / SE)

CHECK SHEET

EQUIPMENT : HVCOS TYPE & MAKE : HMC 25 3 CF TRAXIS make S.No. :




Parameters


a. Condition of Insulator (if minor scratch, repair with CAF4) Repaired

b. Change over time DC to AC AC to DC

400-600 m sec

c. Condition of moving contacts (no flats more than 0.2 mm)

Checked / measured

d. Condition of spring box of moving contacts Checked

e. Condition of base plate Checked

f. Condition of termination connections Checked

MAGNET VALVE EVD-654:

g. Check against air leakage Checked

h. Replace “O” Rings Checked

i. Condition of epoxy of coil Checked

j. Condition of upper valve Checked

k. Condition of lower valve Checked

l. Condition of plug Checked

m. Condition of seals Checked


n. Checked condition of magnet valve bracket Checked

o. Condition of BANDJO OK

OTHER PARTS:

p. Condition of base frame Checked

q. Condition of earthing shunt studs Checked

2 Check during O.H.

a. Condition of magnet valve of Survo Motor Checked

b. Condition of Circlip Checked

c. Condition of seals (replace seals of bottom cylinders) Checked

d. Condition of Truarc rings, plates &

seals (greasing of seals should be with MOBIL SHC 100)

Checked

e. Condition of Truarc “E” rings, levers, rollers, washers & axle Checked


Parameters f. Condition of auxiliary contacts & cam Checked

g. Condition of cam support, spacer & shims Checked

h. Condition of rotating switch of auxiliary contact Checked

i. Condition of all metal parts for cracks Checked

j Check whether any air gap in upper

valve in rest state (if gap is less than 0.2, replace upper valve)

0.6±0.2 mm

k Check pressure of any dust & foreign particles Checked

l. Condition of upper valve seat Checked

m. Condition of plug pins Checked

n. Condition of armatures Checked

o. Condition of springs Checked

p Check air gap in lower valve (if air gap

is less than 1 mm, replace lower valve)

1 to 1.2 mm

q. Condition of washers Checked

r. Condition of “O” rings Checked

s. Condition of Mobile frame Checked


t. Condition of seals Checked u. Condition of washers Checked v. Condition of tube Checked TESTING a. Operation of coils at 70 V DC Normal operating b. Resistance of coils VEA , VEB, VEC 940-1100 ohms c. Position of main contact & moving arc At AC link d. Operation of DC link OK

e. HPT of insulator DC at 5 KV AC at 40 KV


mA

4 Remarks

Date of Overhaul Token No :


CHECK SHEET

EQUIPMENT : AC/DC SURGE ARRESTER TYPE & MAKE : S.No. :




Parameters


a. Condition of insulator No crack / damage

b. Embossing of manufacturer Note it.

c. Condition of top connection stud. No flash / pitted

d. Condition of mounting bracket OK

E. Condition of podastal base OK

2 Check during O.H.

Cleaned the insulator cleaned


HPT test voltage for one min DC 1.8 KV AC 38 KV


mA

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : MASTER CONTROLLER TYPE & MAKE : M 3417 & SACHRON make S.No. :




Parameters


a. Check the function of throttle handle Free movement b. Check any damages No damages c. Condition of Forward & reverse knob Not Broken

d. Check pilot valve switch operation Free movement

e. Check the mechanical locking & unlocking Proper function

2 Check during O.H.

a. Clean the gear teeth Cleaned

b. Condition of gear teeth No worn out / damaged

c. Condition of cam roller No worn out d. Condition of cam switch No broken


a. Operation of handle from 0 to 7 BE

TE Proper movement

b. Continuity of cam switch fixed & moving contact OK ( BELL Test)

c. IR VALUE BY 500 V megger between contact & body Min 10 M-ohms.

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : PANTOGRAPH TYPE & MAKE : AM-18 B2 S.No. :




Parameters

1 Flexible shunt Replace on every POH

a. Any braid broken or loose Braid broken not more than 5% /

not loose

b. Tightness of the screw Properly tightened c. Bimetal plate / washer New

2 Lower arm assembly a. Check for any damage or crack No damage / crack b. Adjusting screw New c. Condition of bearing house No damage d. Bearing 1208 ( 2 nos.) for AM 18 B 2 New

d. Check thread condition of lower arm shaft No damage

3 Main Spring Assembly a. Crack detection by ringing / visually No crack b. ‘T’ Bolt New

4 Yoke assembly

a. Check shackle for crack fro any crack – DPT to be done. No crack

b. Check bearing housing conditions No damage

c. Bearing 6302 ( 6 nos) Replace alternate POH

d. Pins ( 6 nos.) Replace alternate POH

5 Shaft of Lower Arm Assembly

a. Check shaft bush condition if damaged or shaft loose in bush replace it.

No crack after assembly

b. Cleaning & tinning of shunt point Done c. ‘O’ ring ( 2 nos) New

d. Check the fork assembly for any crack ness by DPT

Change on condition basis

e. Check bush of fork assembly. Change on condition basis

f. Check base frame for any crack by DPT. No crack

g. Cleaning of Connection Plate. Done


Parameters

h. Check rubber thrust block (stopper) foundation for crack & straightness

Straight & no crack on condition basis

i. Rubber thrust block (stopper) New

6 Middle articulation assembly a. Check for crack by DPT No crack

b. Check bearing housing seat for any damage of shunt point No damage

c. Bearing 6205 (centre swing link – 2 nos) New

d. Check the play of push rod assembly – DPT to be done. No play & crack

e. Shunt fitting point should be cleaned & surfaced. Cleaned & surfaced

7 Upper frame assembly ( for AM 18 B2)

a. Check for any deformation, welding, joint crack & bend – DPT to be done.

No deformation, cracks & bends

b. Cleaning & tinning of shunt fitting points Done

c. ‘Pipe ends should be cleaned. Cleaned

8 Push rod assembly a. Check bearing housing condition No damage

b. Check the brazing point for any crack DPT to be done. No crack

c. Cleaning & polishing of shunt point. Done

d. Play of push rod – DPT to be done No play & crack e. Bearing 2304 (2 nos.) (for AM 18 B ). New

9 Steady Tube assembly a. Check inside threads No damage

b. Bush Change on condition basis

c. Assembly threads No damage

d. Assembly bush Change on condition basis

e. Pin at both ends. New

10 Top Mounting Assembly ( Upper Articulation Assembly)

a. Check for damage / crack – DPT to be done No crack / damage

b. Bearing 1205 ( 2 nos) New

c. Bearings seat condition of bow ( left & right ) Check for any damage / crack – DPT to be done.

No crack after DPT

d. Circlip & split pins new to be provided New

e. Check the condition of balancing beam ( left & right ) Check for any damage / crack – DPT to be done.

No crack / damaged

f. Check the condition of bush & spring for damaged / broken & free Movement without play.

New spring & bushes provided &

free movement ensured.

g. Bushes ( 4 nos.) New h ‘O’ ring ( 2 nos) New

11 Bow assembly


Parameters a. Length 2027-2037 mm b. Wearing strip inner & outer New

c. Check the condition of horn for any bend /damaged. No bend / damage

d. wearing strip fixing screw new to be provided. New

12 Pedestal Assembly ( Left & Right)

a. Check for any damage / crack – DPT to be done No crack / damage

b. Bearing housing condition No damage c. ‘O’ ring ( 2 nos) New

13 Mechanism Assembly ( Eyelet rod) a. Flash mark on insulator No flash mark b. Crack on insulator No crack

c. Bush Change on condition basis

d. Thread condition (inner & outer) No damage of threads

14 Servomotor a. Check condition of rod No wear / tear

b. Check the condition of servomotor arm fitting assembly. No wear / tear

c. Check the condition of arm fitting assembly bushes.

Change on condition basis

d. Check the cracks & damages of servo motor cylinder. No crack / damage

e. Crack on internal dia of cylinder 172.242 – 171.845 mm

f. Check the condition of main spring No crack / deformation

g. Piston packing.. New h. “ O” ring. New i. Rubber bellow New

k. Check for cracks, damage, wear & tear of whole assembly including body & tie rod

OK

l. Check the servomotor air leakage on test bench with operation. No Leakage

15 Mechanism Assembly ( Eyelet rod) a. Flash mark on insulator No flash mark b. Crack on insulator No crack

c. Bush Change on condition basis

d. Thread condition (inner & outer) No damage of threads

16 Lubrication a. Ball Bearing Servogem-3 b. Servo meter Piston packing Mp-3 c. Articulation (Pin Joint) Servogem-3

d. Check the condition of bush & spring

for damage / broken & free movement without play.

No Play


Parameters 16 Pantograph Final Testing

a. Check Bow Assembly with spirit level Done

b. Check the plunger movement with 10 Kgs weight. OK

c. Static balancing (RDSO/ELRS/SMI/64). Done

d. Transverse flexibility at 1.5 mtrs height with 50 Kgs weight.. 31 – 41 mm

e. Contact pressure (RDSO/ELRS/SMI/64). 10.5 Kgs.

f. Raising time. (RDSO/ELRS/SMI/75). 6 to 10 sec ( three step)

g. Lowering Time (RDSO/ELRS/SMI/75). Less than 10 sec.

h. Pantograph starts raising at. 3 to 3.5 Kg / sq.cm. i. Minimum working air pressure. 4.5 kg/sq.cm.

17 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : PUMP MOTOR (LCD/HEX/AUX/HTC/Transformer) TYPE & MAKE : BHEL make S.No. :




Parameters

I MOTOR


a. Condition of Motor coupling No Damage / No wear

b. Condition of Oil Circulating fixture No Damage

b. Leakage of Oil No Leakage

2 Check during O.H.

a. Condition of Bearing No Noisy / Old / New

b. Condition of Coupling Flange OK

c. Condition of stator winding No Damage

d. IR value of stator value by 1000 V Megger

Min. 100 M- Ohms

e. Condition of Motor Fans No Damage

f. Replace the flange Gasket Replaced.

g. Greasing of Bearing Done


a. Motor checked on 3 phase supply. Proper Working & direction OK

b. Checked pump with oil circulation. Proper Working / No Leakage

II PUMP OVERHAULING


a. Shaft alignment Proper

b. Base Leveling OK


Parameters

b. Base fixing bolt & slots OK

2 Check during O.H.

a. Condition of ‘O’ ring New

b. Condition of Bearing OK / New

c. Condition of Circlip OK / New

d. Lubrication of pump (RR3) Done

e. Condition of Oil holes termination OK / Leakage

III OTHER PARTS


a. Condition of particle separator / manifold OK

b. Condition of all hosespipes OK

c. Condition of rubber bellow OK

d. Condition of safety valve OK

e. Condition of flow sensor OK

f. Condition of Cable Lugs OK

g Condition of switch OK

e. Condition of spider OK

e. Plain coupling OK


a. Measure vibration during running of pump. No vibration

b. Check alignment of motor pump shaft & coupling

Not more than 1.5 mm

c. Working of flow sensor OK

d Working of safety valve OK

e. Oil leakage from pump & oil hoses No Leakage

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : COOLING FAN MOTOR (LCD/HEX/AUX/HTC/Transformer) TYPE BHEL make S.No. :

Taken out from

Coach No.



Parameters


a. Condition of Fan Motor Fins No Damage / No wear

b. Condition of air ventilator Jalli No Broken

c. Condition of filter No torn

2 Check during O.H.

a. Condition of Bearing No Noisy / Old / New

b. Condition of stator winding No Damage

c. IR value of stator value by 1000 V Megger

Min. 100 M- Ohms

d. Locking of Ventilator Jalli Proper Latched

e. Replace the filter New provided.

f. Condition of impeller OK

g. Carried out DPT on impeller No Crack

h. Fan Balancing Done


a. Checked with supply

No abnormal noise & proper

direction of rotation

4 Remarks

Date of Overhaul

Token No :


CHECK SHEET

EQUIPMENT : SWITCH GEAR FRAME & EQUIPMENT TYPE BHEL make S.No. :

Taken out from

Coach No.



Parameters

1 Damping register

a) Check the All insulators

b) Check the resistance value of damping register 14 Ohms ± 5%

2 a)Check the Earthing resistance value 15 K.ohm ± 5%

b) Check all connections of Resistance

3 Isolation Transformer

a) Check all connections

b) Check Insulation resistance value.

c) Check winding resistance

d) Check turn ratio

4 Check the charging resistance value. 45 Ohms ± 20%

5 Check quick discharge resistance value 100 Ohms

6 a)Check Bus bar connections

Check all terminals at Bus bar

7 Check line filter capacitance value 500 Micro ferad ± 10%

Check the connections of capacitor

Check the condition of connection stud

8 Check 100 Hz. filter capacitance value --

Check the connections of capacitor

Check the condition of connection stud

9 Check the DC earthing switch & clean

Check the condition of Flexible shunts

Change the contact springs. New

10 Check the resistance value of DC CB inrush resistor.

68 Ohms 220 Ohms

11 Check the foundation of the base of Switchgear frame

12 Overhauling the panto valve

Date of Overhaul

Token No :


CHECK SHEET FOR MODIFIED FAN FITMENT IN TM DMKT 53/42

Sr.No. Traction (from which rotor removed) :

Stator No. _______ Date of manufacturing :

1. Rotor No.

2. Date of manufacturing

3. Date of fitment of modified DE fan ________ of NDE fan _________

4. Sr.No. of modified DE fan __________, NDE fan ________

5. Weight of DE fan :___________ NDE fan _______

6. Thickness of Web portion of DE fan :____________ NDE fan________

7. Thickness of Hub portion of DE fan ____________, NDE fan _______

Date of DPT (Dry Penetrant testing) of (1) DE fan:

(2) NDE fan

8. (a) Detail of bolt for DE fan make :__________, property class _________

bolts size = M x

(b) Detail of bolts used for NDE fan make : ________ property class ________

Size = M x

9. Washer used for DE fan Flat (Old / New) : Spring washer (old/new)

(b) For NDE fan flat ( old / new) : Spring washer (Old/ new)

10. Setting of torque - wrench

(a) for tightening the DE fan bolt :________

(b) for tightening the NDE fan bolt :________

11. Marking on shaft and NDE fan (done/ not done), marking on shaft and DE fan (done/

not done)

11 a) Date of dispatch to MTN for balancing

12 Date of receipt after balancing :

Detail of balancing done :

13. Check the physical condition :

14. Remove NDE fan with NDE fan labyrinth-ring

15. Marking of Sr.No. of Rotor & DE, NDE fan on rotor body (done/ not done)

Sr.No._______

16. Sr.No. of TM in which Rotor fitted = 474 ________, Stator No. __________

Date of manufacturing :___________, Date of TM overhauling:___________

17. Date of TM fitment in coach : Coach No.________, Pos. No.

check sheets of ac dc emu - cr.railnet.gov.in sheet ac-dc... · check tan delta of main bushing ......

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