Concluding Rate Contract For Routines On Vta Series Cummins Das In Vessels , Carry Out A , B And C Checks . Vta1710 . 6000H1 . , Fuel System: ( A ) Clean And Calibrate Injectors And Record Test Pressures In Service Log . Also Change Injector Inlet Screen . ( B ) Replace Rocker Cover Gaskets . ( C ) Adjust Valve Tappet Clearances Within Limits And Record In Service Log . ( D ) Replace Fuel Pump Filter ( Screen And Magnet ) . ( E ) Calibrate Pt Fuel Pump And Record In Service Log . Vta1710 . 6000H2 . , Air System: ( A ) Clean Turbocharger , Compressor Wheel And Diffuser ( B ) Check Turbo Charger Radial / End Bearing Clearance In-Situ . Note: Renew O Ring And Teflon Gasket When Turbocharger Is Opened For Checking Clearances . Vta1710 . 6000H3 . , Charge Air Cooler & Fresh Water Cooler: ( A ) Clean The Internal Passages Of Charge Air Cooler And Fresh Water Cooler Coolant Side Using Restore Plus As Laid Down In Operating Manual . ( B ) Renew Coolant In The System ( C ) Inspect Charge Air Cooler Air Side And If Required Clean Using Hot Water And Pressure Test Up To 2Kg / Cm2 . Vta1710 . 6000H4 . , Other Maintenance: ( A ) Clean Engine With Solvent . ( B ) Carryout Flushing Through Of Coolant System As Per Jic Vta1710 . 6000H5 . , Check Thickness Of Vibration Damper At 0 , 90 , 180 And 270 Degree Positions . Replace Damper If Variation Of The 4 Readings Exceeds 0 . 010 Inch ( 0 . 25Mm ) Or Exceeds Max Allowable Thickness . Checks To Be Undertaken In Coupled Condition . Vta1710 . 6000H6 . , Check All Safety Alarms And Trips . Vta1710 . 6000H7 . , Check Crank End Clearances With A Dial Indicator , Attaching Against Damper Min- 0 . 13 Mm , Max-0 . 51 Mm . Vta1710 . 6000H8 . , Tighten Mounting Bolts / Nut As Required . Vta1710 . 6000H9 . , For 1710 / 28Gc1 Engines - Undertake Inspection Of Two Representative Pistons Liners And Bearings Of The Engine . Inspection Of Balance Liners And Bearings Is To Be Scheduled Based On Inspection Report Of The Two Sample Liners . Vta1710 . 6000H11 . , Carryout Visual Inspection Of Sv Mounts . Renew Mounts If Their Condition Is Deteriorated . Vta1710 . Sr1 . , Undertake Alignment Checks Between The Generator And Engine And Restore Radial / Axial Initial Alignment To 25% Of The Max Limit . Vta1710 . Sr2 . , Record Crankshaft End Clearances With A Dial Indicator , Attaching Against Damper Min- 0 . 13 Mm , Max-0 . 51 Mm When In Coupled Condition . Vta1710 . Sr3 . , Check Torque Tightening Of Coupling Inner / Outer Members As Specified In The Manual For Das Fitted With Holset ( Reynolds ) Or Centamax Couplings . In Case Of Vulcan Couplings , Check For Cracks On Rubber And If Wear Mark Does Not Exceed Limits . Check Tightness Of Adaptor Plate Bolts ( Coupling Bolts ) Vta1710 . Sr4 . , In Case Of 743 / 855 Engines . Check Thickness Of Vibration Damper At 0 , 90 , 180 And 270 Degree Positions . Replace Damper If Variation Of The 4 Readings Exceeds . 0 . 010 Inch ( 0 . 25Mm ) Or Exceeds Max Allowable Thickness . Checks To Be Undertaken In Coupled Condition . Vta1710 . Sr5 . , Check Turbo Charger Radial / End Bearing Clearance In-Situ On Removal Of Inlet / Exhaust Pipes . Note: Renew O Ring And Teflon Gasket Whenever T / C Is Opened For Checking Clearances . Vta1710 . Sr6 . , Carry Out A , B , C , D And Sr Checks . Vta1710 . 12000H1 . , Offer Performance Assessment Trials On External Load Tank To Dttt / Etma And Vibration Trials To Mtu . Crankcase Blowby / Engine Smoke Condition Is Also To Be Recorded Along With All Other Performance Parameters . Trial Teams To Forward Recommendations . Vta1710 . 12000H2 . , For 1710 / 28Gc1 Engines- Remove All Cylinder Heads For Decarbonisation And Inspect Main / Connecting Rod Bearing . Undertake Replacement Of Liners If Pitting / Corrosion Observed On The Extracted Liners . Refit Cylinder Heads And Bearings As Requiredvta1710 . 12000H3 . , Inspect Holset / Vulcan / Centamax Flexible Coupling And Torque Tighten Inner / Outer Members . Check Rubber Blocks / Disc For Deterioration . Renew If Necessary . Vta1710 . 12000H4 . , Undertake Alignment Checks Between The Generator And Engine And Restore Radial / Axial Initial Alignment To 25% Of The Max Limit . Vta1710 . 12000H5 . , Renew Rubber Vibration Dampers Where Fitted . Vta1710 . 12000H6 . , Dismantle Auxiliary Drives And Check Bearing Clearances . Renew Bearings If Necessary . Examine All Gear Teeth For Pitting And Scuffing . Vta1710 . 24000H1 . , Renew Big End Bearings , Their Bolts , Nuts And Washers . Vta1710 . 24000H2 . , Check Main Bearing Clearances And Examine The Condition . Renew Bearing If Clearances Are Excessive . Vta1710 . 24000H3 . , Remove , Clean And Examine All Cylinder Liners For Scoring And Corrosion . Gauge Liners Internally . Renew If Necessary . Vta1710 . 24000H4 . , Clean All Water Passages . Renew All Sealing Rings . Vta1710 . 24000H5 . , Examine And Gauge All Pistons . Renew Pistons If Necessary . Vta1710 . 24000H6 . , Renew All Piston Rings . Vta1710 . 24000H7 . , Remove Crankshaft And Check For Cracks , Scoring And Deflection , ( Eccentricity ) . Clean And Flush Out Oil Ways . Renew Teflon Seals . Vta1710 . 24000H8 . , Overhaul Governor . Renew Worn Out Parts . Calibrate Governor After Completion Of Overhauling . Vta1710 . 24000H9 . , ( A ) Remove And Chemically Clean Lub Oil Cooler And Fresh Water Cooler And Carry Out Pressure Testing . Replace If Required . ( B ) Renew Gasket And `O Seals . Vta1710 . 24000H10 . , Remove And Check The Over Speed Trip ( Protection Device / Sensor ) For Correct Setting / Functioning , Calibrate If Necessary . Vta1710 . 24000H11 . , Refit Cam Shaft Drive Assembly . Vta1710 . 24000H12 . , Check All Camshaft Bearing Clearances . Renew If Necessary . Check Valve Timing . Vta1710 . 24000H13 . , Check All Connecting Rods For Bend And Twist . Clean And Flush Out Oil Passages . Vta1710 . 24000H14 . , Renew Hp Fuel Pump . Vta1710 . 24000H15 . , Remove , Clean And Retreat The Crankcase . Vta1710 . 24000H16 . , Clean And Repaint Bedplate . Vta1710 . 24000H17 . , Renew All Flexible Hoses . Vta1710 . 24000H18 . , Gauge All Gudgeon Pins . Replace If Wear Is Excessive . Vta1710 . 24000H19 . , Renew S . V . Mountings . Vta1710 . 24000H20 . , Overhaul Turbo Supercharger . Renew Entire Unit If Parts Are Excessively Worn Out . Vta1710 . 24000H21 . , Remove Air Cooler , Chemically Clean And Pressure Test On Completion Of Cleaning . Replace If Required . Vta1710 . 24000H22 . , Overhaul Air Starting Motor . Renew Worn Partsvta1710 . 24000H23 . , Renew Silicon Vibration Damper Where Fitted . Vta1710 . 24000H24 . , Overhaul / Renew Holset / Vulcan / Centamax Coupling As Necessary . Renew The Rubber Inserts / Member Of The Flexible Coupling . Renew All Fasteners / Bolts While Assembling The Coupling As Per Oem Recommended Procedure . Carry Out Engine To Alternator Alignment Procedure While Maintaining The Crankshaft End Clearances . Dowel The Alternator . Carry Out Full Load Trials And Vibration Checks Before Normal Service . Vta1710 . 24000H25 . , Carry Out A , B And C Checks . Vta28dm . 6000H1 . , Fuel System: ( A ) Clean And Calibrate Injectors And Record Test Pressures In Service Log . Also Change Injector Inlet Screen . ( B ) Replace Rocker Cover Gaskets . ( C ) Adjust Valve Tappet Clearances Within Limits And Record In Service Log . ( D ) Replace Fuel Pump Filter ( Screen And Magnet ) . ( E ) Calibrate Pt Fuel Pump And Record In Service Log . Vta28dm . 6000H2 . , Air System: ( A ) Clean Turbocharger , Compressor Wheel And Diffuser ( B ) Check Turbo Charger Radial / End Bearing Clearance In-Situ . Note: Renew O Ring And Teflon Gasket When Turbocharger Is Opened For Checking Clearances . Vta28dm . 6000H3 . , Charge Air Cooler & Fresh Water Cooler: ( A ) Clean The Internal Passages Of Charge Air Cooler And Fresh Water Cooler Coolant Side Using Restore Plus As Laid Down In Operating Ma
