RMPU AMC OF MUMBAI DIVISION CENTRAL RAILWAY (M/S LEEL LOA#BB/LG/WCSTM/2013/06 dt4.12.13): POH Checklist

Friday, October 4, 2013

POH Checklist

CHECKSHEET CUM LOG BOOK FOR PERIODIC OVERHAULING (POH) OF RMPU AND CONTROL PANEL OF AIR-CONDITIONING COACHES

COACH NO.

CODE :

RLY.:

Work starting date :

PP SIDE/MAKE :

Sr. No.

Work completion date :

NPP SIDE/MAKE:

Sr. No.

Total time taken:

DATE :

Sr.

JOB DESCRIPTION

SPECIFIED VALUE

ACTUAL VALUE

REMARKS

NPP

Removing of dust and dirt from control panel & condenser coil, cooling coil.

Should be cleaned.

Replacement of filter

RETURN AIR

100% New

FRESH AIR

100% New

Replacement of condenser & blower motor.

100% POH

Replacement of condenser fan blade.

Stainless steel to new FRP

Replacement of FRP blades on conditional basis and replace SS blades with new FRP blades.

Checking of Electronic thermostat

Replace Electronic thermostat by new on conditional basis

Cooling

23⁰C

25⁰C

23⁰C

25⁰C

Heating

19⁰C

21⁰C

19⁰C

21⁰C

Normal current when package unit is in cooling mode.

20-23 Amps

Normal current when package unit is in heating mode.

07-11 Amps

Compressor-1 (CP 1) Current.

07-10 Amps

Compressor-2 (CP 2) Current.

07-10 Amps

Condenser motor-1 (CD 1) Current.

1.5-2.1 Amps

Condenser motor-2 (CD 2) Current.

1.5-2.1 Amps

Blower motor Current.

1.5-2.5 Amps

Over heat protection with fixed setting at 65⁰C

OHP-1 & OHP-II

(Fixed Setting 65⁰C) Trip within 5 min.

Replacement on conditional basis.

HP cut out- (Range 85 to 425 PSI)

HP-I

415 PSI (Trip within 10 min. with condenser motor OFF).

HP - II

LP cut out- (Range 15 to 100 PSI)

LP-I

35 PSI

LP - II

Functional check of Timers- (Range 00 to 180 Sec.)

TDR1

2.0 min

Replacement on conditional basis.

TDR2

2.5 min

Functional check of OLR of Compressor (Range 7.5 to 11Amps)

CP 1

(10 Amp setting)

Replacement on conditional basis.

CP 2

(10 Amp setting)

Functional check of OLR of condensor motor (Range 1.7 to 2.4 Amps)

CD 1

(2.1 Amp setting)

CD 2

(2.1 Amp setting)

Functional check of OLR of blower motor (Range 2.2 to 3.1 Amps)

Blower

(2.5 Amp setting)

Functional check of contactor for Compressor (Range 32 Amps)

CP 1

Conditional

Replacement on conditional basis.

CP 2

Conditional

Functional check of contactor for condensor motor (Range 16 Amps)

CD 1

Conditional

CD 2

Conditional

Functional check of contactor for blower motor (Range 16 Amps)

Blower

Conditional

Checking of Indication PCBs.

Working

Replacement on conditional basis.

Checking of MCBs.

Working

Replacement on conditional basis.

Checking of indication lamp. (R. Y. B.)

Working

Replacement on conditional basis.

Checking of all Electric conections.

Should be tight

Functional check of Rotary switch (63 Amps. ON/OFF, 4 position)

RSW 1

Working properly

Replace rotary switches on conditional basis

Functional check of Rotary switch (12 Amps.2 pole , 3-way with OFF.)

RSW 2

Working properly

Functional check of Rotary switch(16 Amps.3 pole , 4 position). (auto manual)

RSW 3

Working properly

Functional check of Rotary switch (10 Amps.2 pole , 3way without OFF.)

RSW 4

Working properly

Ensure refrigerant pipes are clamped properly.

Properly clamped.

Ensure suction pipe for proper lagging.

Properly lagged.

Checking of vane relay.

By stopping the return air flow, AC plant & heater circuit should be cut OFF.

Replace vane relay on conditional basis

Start the plant and check all the motors for abnormality.

Working properly

Check drip tray drain.

Should be Clean

Compressor terminal, wires and Thimbal connections.

Properly Tightened

Antivibration mountings for RMPU.

Should be in good condition

Replacement on conditional basis.

Heating elements (3 KW X 2).

Workinng properly

Replacement on conditional basis.

Unit and coach rubber lining.

100% New

Rubber bushing/packing of pipe.

100% New

Rubber gasket of Access door for fresh air filter & blower section.

100% New

Condensing area covers, upper mesh guard, compressor side hinges and fastners.

Properly Tightened

Earthing shunt with studs.

Properly Tightened

Replacement on conditional basis.

All wires of unit, panel and between panel & unit.

Properly Tightened

Checking of conduit pipes.

Properly fitted.

Rubber canopy for condenser motor. (Water deflector)

Should be in good condition

Replacement on conditional basis.

Check the supply of control transformer.

Working properly

Replacement on conditional basis.

Check the healthiness of Harness coupler.

Working properly

Replacement on conditional basis.

Mesh between Evaporator & heater.

Should be cleaned.

Replacement on conditional basis.

Base insulator for heating element.

Properly fitted.

Replacement on conditional basis.

Knobs for Rotary switches.

Properly fitted.

Replacement on conditional basis.

Canvas duct for supply & return air

100%New

Running Gas pressure

Should be 60-65 PSI

CP-1

CP-2

CP-1

CP-2

MEGGER READING (In Mega Ohms)

Check insulation resistance of all motors and compressors by duly calibrated 500V megger. Insulation resistance of motors should not be less than 2 Mega Ohms.

Equipement

BLR

CD-1

CD-2

CP-1

CP-2

CCH

HTR

HP-1

PP-Side

NPP-Side

Equipement

LP-1

HP-2

LP-2

OHP-1

OHP-2

SENSOR

PP-Side

NPP-Side

Items not compliled:

Non-compliance pertmitted by:

NAME & SIGNATURE OF

NAME & SIGNATURE Of

NOMINATED RAILWAY REPRESENTATIVE

FIRM REPRESENTATIVE

FOR INSPECTION AT WORKSHOP

No comments:

Payments

3.5 PAYMENT TERMS :-

1) On account payment shall be made once in three month for the work carried out in previous period. First payment shall be done after three months from the start date of contract period.

2) Bills should accompany following documents.

a) The certificate of satisfactory maintenance of RMPU issued by nominated Railway Engineer.

b) The bill shall bear with the date and place of maintenance, for which bill is raised.

3) Advance payment: Normally no advance payment is admissible. However, in exceptional cases advance payment is made against bank guarantee of an equivalent amount. Bank guarantee should be from a scheduled bank and valid for a period of six months beyond the completion period. Any excess/ shortfall in the work actually carried out shall be adjusted in the next payment due.

3.6 PAYING AUTHORITY :-

1) Work carried out in the respective depot shall be certified by the depot-in-charge and such certification of work shall be forwarded to Senior Divisional Electrical Engineer (Coaching) Mumbai CST. Measurements shall be recorded by the SSE (AC-COG) CSTM. Test checks are to be exercise by DEE/ADEE (TL/AC), Mumbai division. Bills shall be submitted to Senior Divisional Electrical Engineer (Coaching) Mumbai CST.

2) The Senior Divisional Finance Manager , Central Railway, CSTM shall make the payment against the bills duly verified and passed by the Senior Divisional Electrical Engineer (Coaching), Central Railway, CSTM.

3). Refund of security deposit:-

The security deposit shall be released upon completion of contract in all respect. Successful completion of the work is to be certified by Railway’s Engineer. The contractor shall submit an unqualified no claims certificate before seeking release of the security deposit.

3.7 RECOVEY OF DAMAGE ON ACCOUNT OF DELAY:-

1) Permitted time for maintenance schedules are as under:-

a) Trip schedule - 5 hours.

b) Trip + Monthly schedule - 6 hours.

c) IOH schedule - 9 hours

d) POH schedule - 72 hours

2) Any delay by the contractor in completing the above activities shall affect the punctual running of trains and cause loss of revenue to the Railway. Therefore, the Railway shall recover from the contractor by way of penalty, a token sum of Rs. 500/- per coach for the delay of every one hour and part thereof subject to maximum 25% of payment towards the trip, monthly and IOH maintenance schedule.

3) The penalty of Rs.1000/- per day per coach will be imposed for delay in POH (after 9 man days i.e 72 hours).

4) If any trip / monthly schedule are missed 50 percent of monthly schedule payment shall be deducted as a penalty.

5) The coaches marked sick, shall have to be attended promptly within the reasonable time. Once the coach is handed over to the contractor for maintenance / repairs, if coach lying sick/defective beyond 24 hrs on account of RMPU, a penalty of Rs.500/- for every six hours beyond 24 hrs shall be imposed.

6) The penalty of Rs.5000/- shall be imposed per incidence for failure of equipment related to RMPU including compressor, blower motors, condenser motors, relay & contactors, panels amongst others leading to loss of punctuality.

7) The penalty of Rs.20,000/- shall be imposed per incidence, If coach detached due to reasons related to RMPU.

8) The contractor should make suitable arrangements to extant possible to attend affected coach en-route as well as at secondary depot.

9) If the coach has to be declared for CNAC en-route due to maintenance failure or material failure, penalty of Rs. 10,000/- shall be charged for per incidence.

10) During the inspection after the trip /monthly/IOH/POH schedule, if any equipment is found in by pass / isolated condition or of non- approved source of RDSO/OEM, without written permission from the Railways, penalty equivalent to monthly payment shall be charged.

11) The above incidence of failure does not include damage caused by extraneous factors. Whether failure is on this account shall be decided under the joint inspection of the nominated official and a representative of the contractor. This inspection shall be carried out at the nearest PM depot.

3.8 REFUND OF SECURITY DEPOSIT :-

The security deposit will be refunded on submission of Final Completion Certificate and submission of No Claim Certificate from the Railways authorized representative after the AMC period of 36 months is over.

3.9 TAXES :-

The rate shall be inclusive of excise duty, sales tax and all other duties and levies, however present rates applicable shall be advised to Railway. In case of octroi the Railway can issue necessary certificate for octroi exemption but it will not be binding on Railway if same is not accepted by octroi authorities and in case of sales tax Railway can issue concessional tax AF/D form. Service tax shall be paid extra as per rate applicable by Gov rules over 70% amount of total cost as elaborated at schedule of price at part-IV.

3.10 WORKS CONTRACT TAX :-

“Not applicable in this case being comprehensive maintenance”

Contractors are liable to pay WCT (Works Contract Tax) and a registration for the same is required with the Sales Tax Authority of the respective state. It would be further stipulated that if the WCT registration is not produced within a period of one month of the awarding the contract, the first “on account” bill will not be passed. In exception circumstances, when on account bill cannot be withheld in the interest of a targeted work, where the tenderer is not able to produce the WCT registration even after a lapse of one month period, an amount equivalent to 4% of the overall contract value will be deducted from his on account bills. The amount of 4% will cover 2% towards WCT and another 2% as additional security.

Friday, October 4, 2013

POH Checklist

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