Tender For Work Contract For Operation, Routine And Breakdown Maintenance, Repair/Rectification Of Various Engine Spares (Electrical And Mechanical) Of Beml Make Dozers Of Chp-A And Chp-B Of Chd-Iii, ‘B’Tps, Obra. - Repairing Housing fly wheel 2 Repairing Radiator 3 Repairing Hydraulic jack cylinder 4 Radiator fan Dismantling of related components for taking out ofradiator fan assy. Cleaning and servicing, greasing the assy. With repair/ replacement of damaged /worn-out parts like pulley fan blades, bearing etc. Reassembly of the fan assy. On chassis and its commissioning. 5 Dismantling of old mounted radiator fan assy. From chassis and its related components .Installation of new radiator fan assy .after greasing and its commissioning. 6 Repairing Hydraulic jack cylinder beam 7 Repairing Hydraulic tank 8 Repairing Main engine N-743C On chassis 9 Repairing Out of chassis 10 Repairing Main clutch 11 Repairing Gear box 12 Repairing Steering system 13 Repairing C-frame 14 Repairing Engine & clutch guard 15 Repairing Dozer blade & cutting edge 16 Repairing Track systemTrack bogie 17 Grease cylinder piston assly. 18 Repairing Track shoe 19 Repairing Link bush 20 Repairing Master/Regular pin 21 Repairing Track line 22 Repairing carrier roller 23 Repairing Sprocket 24 Fabrication & Erection of BEML Dozer blade after repair of base structure of blade assy. 25 HARD FACING OF THE DOZER BLADES 26 REPAIRING OF ACTUATOR BEAM 27 FABRICATION OF SUPPORT OF CUTTING EDGE AND END BITS. 28 REPAIRING OF ‘C’ FRAME 29 REPAIRING OF ARMS OF ‘C’ FRAME 30 PAINTING OF DOZERS 31 REPAIRING OF EXHAUST MUFFLER 32 Repairing Self starter (Lucas) GSL-5(24V) 33 Repairing Alternator (AC-5)24V 34 Repairing Self Armature(GSL-5)24V 35 Repairing Battery charger 36 Repairing of exide battery 12V 25 plate for dozer 37 Repairing Main clutch pump 38 Repairing Hydraulic pump 39 Repairing Steering pump 40 Repairing Cooling water pump 41 Repairing P.T.O. case unit (power take units) 42 Repairing Oil cooler 43 Repairing Hydraulic cylinder 44 Repairing Radiator 45 Repairing Sprocket 46 Repairing Idlers 47 Repairing Track roller single flange 48 Repairing Track roller double flange 49 Repairing of connecting rod of BEML dozer 50 Repairing of dozer sheets (bottom sheet 01 no. back sheet 01 no. & hand rest 02 nos. for each set. 51 Repairing of cylinder tray assly. of hydraulic cylinder of BEML dozer 52 Repairing of crank shaft of Cummins N-743-C engine 53 Repairing of P.T. fuel oil pump of Cummins N-743-C engine 54 Injector assly. of Cummins N-743-C engine 55 Repairing of cylinder head assly. of Cummins N-743-C engine 56 Repairing of rocker arm of Cummins N-743-C engine 57 REPAIR OF U.J. ASSEMBLY 58 REPAIR OF BOOSTER ASSEMBLY 59 REPAIR OF LUBRICATING OIL PUMP 60 REPAIRIONG OF RETAINER OF CLUTCH ASSLY. 61 Operation and routine checking of BEML D-80A-12 and BD-155 dozers in each shift round the clock at Coal Handling Plant, BTPS, Obra. (01 Job = Operation of 01 Dozer per shift in a month) 62 Operation and routine checking of BEML D-80A-12 and BD-155 dozers in each shift round the clock at Coal Handling Plant, ATPS, Obra. (One job = OPERATION OF 2 Dozer for one shift duty of 8 Hrs.) 63 HOUSING FLY WHEELOverhauling of housing fly wheel with replacement of the worn-out ,damaged parts such as bearings, washers lock, ’O’ Ring ,plate lock, rim gear, studs with nut, spring washer ,cap screw dowel etc. 64 RADIATORDismantling the related components of radiators for taking out of the radiator from chassis. Cleaning of outer surface and air passage and its commissioning. If miner leakage are found in the tubes then its soldering before installation .If required complete replacement of radiator assy. (repaired/new) 65 HYDRAULIC JACK CYLINDER.Dismantling the related components for taking out of hydraulic jack from dozers chassis after draining hydraulic from tank. Cleaning and servicing with replacementof damaged worn-out parts such as backup ring, ’O’ Ring, D.A. fluid seal assy. dust cap ,split pin, ’U’ Packing set, wiper seal, seal bearing, piston, spring, bushing, plate valvesetc. assy. of the complete cylinder installation and commissioning . (One set= 2 Hydraulic cylinders). 66 RADIATOR FAN Dismantling of related components for taking out of radiator fan assy. Cleaning and servicing, greasing the assy. With repair/ replacement of damaged /worn-out parts like pulley fan blades, bearing etc. Reassembly of the fan assy. On chassis and its commissioning. 67 RADIATOR FAN Dismantling of old mounted radiator fan assy. From chassis and its related components .Installation of new radiator fan assy.after greasing and its commissioning. 68 HYDRAULIC JACK CYLINDER BEAMDismantling of related components for taking both side beam from dozer chassis .Taking out both side both side yokes and checking ,of its thread .If worn-out after re-metalizing, machining (done by department)their reassembly greasing ,installation on chassis and its commissioning on load. 69 HYDRAULIC TANKDismantling of all related components for taking out the hydraulic tank .Draining of hydraulic oil from the tank. Dismantling of thee hydraulic tank and its cleaning. Repair/replacement of worn-out /damaged parts such as gaskets, ’O’ ring, poppet shins, spring hose, clamp etc. Assy. of all related parts and its mounting on chassis and commissioning. 70 MAIN ENGINE ( On CHASSIS)Decanting of oil from pump and hydraulic tank removing of foot plates, beam, ties, hydraulic metallic pipes, booster, hydraulic cylinder, radiator fan, jockey pulley, water manifold and all other related components, lifting of the engine after removing sump. Taking out of connecting rod with piston and rings and cylinder, liners. Repair/changing of damaged/worn out parts such as cylinder, liner, piston ring, connecting rod, bearing, heads, injectors, injector rod etc. Reassembly and commissioning of the Engine. 71 ENGINE OUT OF CHASSISDismantling of clutch and its related components and taking out of Engine from the chassis. Dismantling of complete Engine cleaning of all dismantled parts .Polishing of crank shaft main and complete replacement with new repaired crank shaft. Repair/replacement of bearing ,connecting rod, nut bolts, lock washers, piston, piston ring liner, injector, injector rod, heads, rocker arm housing. P.T. pump and B check kit service. Repairing/changing of all spares available in head gasket and Engine gasket set. Servicing of water pump, jockey pulley, cam shaft, bushing cam follower etc. re-assembly of complete Engine and its commissioning.NOTE: Firing order will be set right by department. 72 MAIN CLUTHDismantling of related components by draining of clutch oil for taking out clutch housing with driving shaft. Dismantling of components of clutch repair/replacement of worn-out/damaged part such as bearing, clutch seal, retainer, cover, pressure plate, clutch plate, disc, driving shaft, inertia break lining, filter, rollers, bolts, washers, pin etc. Re-assy. of clutch and mounting on chassis. In taking of all dismantled related components .Commissioning of dozer in respect of clutch. 73 GEAR BOXTaking out of gear box from chassis after dismantling of its related components. Dismantling Of gear box, Cleaning of all the parts. Repairing /replacement of worn-out/damaged parts such as bearing ,bushings gears, couplings, lock, key soakers, ‘O’ Rings, seal, bolts, flanges, shaft, fork, lever etc. Re-Assy. Of the gear box and its installation on chassis. Re-mounting of all dismantled related components, testing and commissioning of the gear box. 74 STEERING SYSTEMAfter removing diesel fuel tank, seat assy. etc. Taking out of steering valve, steering brake lever, brake liner, flange bearing, steering housing tubes, clutch etc. from the chassis. Cleaning of all the parts of steering system. Repair/Replacement of worn out/damaged parts such as ring seal, ‘O’ Ring, bearing, shims, steering disc, plate disc, lock needle bearings, lining etc. Re-assy. Assembly Of steering system and mounting of dismantled components on chassis and its commissioning. 75 ‘C’ FRAMEDismantling of related components for taking out ‘C’ Frame and erection of new fabricated joints hinges. Alignment of ‘C’ Frame and its dismantled related components on the chassis and its commissioning. 76 ENGINE & CLUTCH GUARDSDismantling the engine and clutch guard from the chassis. Cleaning and fixing it on chassis. 77 DOZER BLADE & CUTTING EDGERemoval of old and damaged blade assy. Bending of 10mm.M.S. Plate to accurate profile of blade of size 4.3’’X9.25’’ from coal pushing side. Fabrication of above plate on blade assy. Throughout the blades. Fabrication of side patching of size 1.5X30X88mm on fabricated plate. Repair/replacement of cutting blade. Repair/Replacement of damaged cutting edges-5 Nos. tightening of 5 Nos. cutting by nut& bolts. 78 TRACK BOGEEDismantling of track chain from its master pin and lifting the complete dozer chassis by hydraulic jack. Dismantling of idler from yoke and brackets. Taking out the track bogie from the dozer. Dismantling of 2 Nos. double flange rollers and 4 Nos. single flange rollers and other related components from the track of bogie. Repair/idler by replacement of seal ring assy., bracket taper bolts & nuts, spring, washer, attaching to yoke etc. changing of piston, cylinder, grease filling inlet and drain from the bogie. Repair of rollers by providing seal ring assy., bracket with half round lock etc. Filling of oil in idler and rollers on bogie. If required replacement of complete rollers and idler. Mounting of complete bogie in the chassis. Fitting of complete in the system and tightening by filling grease. Commissioning of the track bogie. 79 GREASE CYLINDER PISTON ASSY. Dismantling of track chain and related components for taking out grease cylinder piston assy. Replacement/repair of grease cylinder piston assy. After filling grease, re-assy. of the dismantled Related component and fitting, tightening of the track chain in the system of filling grease and its commissioning. 80 TRACKSHOEReplacement of track shoe by cutting of 4Nos. fastening bolts. 81 LINK BUSHReplacement of master / regular pin of track chain by heating, jacking, hammering and cutting. 82 MASTER /REGULAR PIN Replacement of master /regular pin of track chain by heating, jacking, hammering and ducting. 83 TRACK LINEReplacement of left /right track links of track chain by heating, cutting, pressing of hammering. 84 CARRIER ROLLERAfter losing the track chain, dismantling the carrier roller, cleaning of the carrier roller after draining the old lubrication .After cleaning filling of fresh lubrications .If required replacement of carrier roller complete, mounting of carrier roller on the chassis and tightening of track chain and its commissioning. (One job consists of 2Nos. rollers). 85 SPROCKETDismantling of track chain, track bogie and other related components for taking out the sprocket. Repair/replacement of damaged /worn out parts such as gasket, ’O’ Ring, seal ring assy., keys, lock, nuts, bushing, spares, bearing roller. Cleaning of all the components and housing by air and oil. Filling of fresh of complete sprocket. Re-assy. Of track bogie track chain and other related components and its commissioning. 86 Fabrication & Erection of BEML Dozer blade after repair of base structure of blade assy.SCOPE OF WORK FOR EACHa. Dismantling of worn out blade from the base support of Dozer.b. Strengthening of the base support by heating and hammering and welding where bended.c. Cutting and grinding the sides of base where excess materials is deposited due to previous welding.d. Fabrication of the blade and bending the same for complete length of the blade in three equal parts (ABC) from the given 5/6mm. M.S. Plate as per original profile.e. Fabrication of the side support two Nos. from 8mm. M.S. Plate and welding the same as per original profile.f. Erected three Nos. blade newly fabricated as per items No. (d) on the base of welding.g. Erection of two Nos. side support (newly fabricated as per items no.) on the above erected blades by welding.h. To maintain the balancing and leveling of the new erected blades and supports. 87 HARD FACING OF THE DOZER BLADESa. Patching of the damaged portion of the dozer blades by 6mm. thick M.S. if required.b. Hard facing will be done in square form of size 1-1/2” with suitable hard facing electrodes.(The hard facing area are of the blade is approx. 2.8ftX13ft.) 88 REPAIRING OF ACTUATOR BEAMa. After dismantling the related components taking out the actuator beam from the Dozer chassis.b. Cleaning & polishing of the actuator.c. Taking out its bushing and other related parts.d. Making of its bore to original condition by welding and machining.e. Welding of the different cracks on body of actuator beam and its grinding.f. Re-assembling of parts and mounting the actuator beam on dozer chassis. 89 FABRICATION OF SUPPORT OF CUTTING EDGE AND END BITS.a. Dismantling of support, cutting the worn out portion of support of cutting edge.b. Fabrication of new support of cutting edge and end bits as per original profile with the M.S. Plate of 16/18mm.width.c. Drilling the holes on erected support in summery of the holes of cutting edges and end bits. (The number of holes of 03 Nos. cutting edges 24mm. and that of both side end bits is 12).d. Erection of the new fabricated support to the dozer blade by welding and cutting.e. Fixing of 3 Nos. cutting edge and both side end bits to the dozer blade by suitable size of nut and bolts. 90 REPAIRING OF ‘C’ FRAMEa. Fixing of the 02 Nos. of bracket to the ‘C’ frame by welding and cutting ( Left and Right ) brackets will be arranged from old and used ‘C’b. Fixing of bracket Inner 4 Nos. on the ‘C’ Frame 2Nos. for blade arms and other 02 Nos. for hydraulic jacks by cutting and welding.c. Fixing of 01 No. centre hinge suitable for centre pin on the ‘C’ frame. 91 REPAIRING OF ARMS OF ‘C’ FRAMEa. Dismantling of related components of the arms and supporting arms of ‘C’ frame and taking out the both side arms from the ‘C’ Frame.b. Strengthening of both side arm and supporting arms of ‘C’ frame by heating and pressing by hydraulic jack.c. Machining and re-threading of arm screw after re-metaling as per original profile.d. Re-threading of inner portion of jobs.e. Assembling of the arms and supporting arms of ‘C’ frame. 92 PAINTING OF DOZERSa. Cleaning of the dozer body with caustic soda. The rusted portion of the dozer will be cleaned thoroughly by the emery paper.b. After thorough cleaning double coat of red oxide will be applied over complete dozer.c. After drying out the red oxide coating completely the body of the dozer will be painted in double coat with super quality Asian paint of yellow color. 93 REPAIRING OF EXHAUST MUFFLER SCOPE OF WORK1. Remove the both side of exhaust muffler by cutting.2. Complete repaired the inner portion of exhaust muffler.3. Welding the both side muffler by providing new M.S. Plate. 94 Self-Starter (Lucas) GSL-5 (24 V)SCOPE OF WORKi. Dismantling of the selfii. Rewinding of armatureiii. Rewinding of exciting Coil. iv. Replacement of magnet switch.v. Replacement of the following such as:- a. Commutator.b. Armature shaft. c. D.E. bushing. d. Clutch Assy.e. C.E. bushing. f. Plunger assy. g.Pinion h. Solenoid switch. i. Main field coil Assy. j. Auxiliary field coil assy. k. Castle nut. l. Clutch washer & triplet screw. m. Carbon brush assy. n. Cotton winds pole & screw. o. Shims coils, seal & belt pad. p.Through bolt, nuts, washer, C.E. Bearing, DE bearing brush leads, spring, washers, nuts, terminal, DE insulation bus, plane washer, earth terminal, poles screws key, rivets, trough studs, nuts & washers.vi. Testing of self-starter. 95 Alternator (AC-5)24 VoltsSCOPE OF WORKi Dismantling of components.ii. Rewinding of armature.iii. Rewinding of starter coil.iv. Replacement of the following such as. a. Lucas blades, insulators, grommets, nuts & washers. b. Carbon brushes, brush holder and brush assy. c. Main terminal, baffle screw, nuts washer and gaskets. d. ‘O’ Ring, Slip Ring. Cir-clip wood ruff key. e. Bearings. f. Pulley nuts. g. Cooling fan shaft. h. Cut out.v. Testing of the alternator. 96 SELF ARMATURE(GSL-5 )24 VSCOPE OF WORKi.Dismantling of the self.ii.Rewinding of armature.iii.Replacement of the shaft and Commutator.iv.Balancing of the armature.v. Testing of the armature. 97 Battery ChargerSCOPE OF WORKi.Dismantling of the Battery Charger.ii.Rewinding of Transformer Coil.iii.Replacement of the following such as :- a.Rectifier b.Regulator Contact Switch c.On & Off Switch d.Fuse Carriere. C.E.bushing f. Ammeterg.Indicating bulbiv. Testing of charger on overload. 98 Repairing of Exide Battery 12V, 25 Plate for DozerSCOPE OF WORK FOR EACHa. Replacement of damaged 6 Nos. cells each containing 25 Plates (12 Nos. +ve and 13 Nos.–ve).b. Replacement of damaged rubber shoes provided in between the +ve and –ve plates.c. Replacement of 6 Nos. connector.d. Replacement of +ve and –ve terminal.e. Testing of the batteries after filling acid and charging (Acid shall be arranged by the firm at their own cost. 99 MAIN CLUTCH PUMP.SCOPE OF WORKi.Dismantling of the pumpii.Repair by welding and machining of bracket, gear case and side plate housing.iii.Replacement of the following such as :- a.Gears with shaftb.bearing needc.Oil seals d.‘O’ Ring and its piniv.Re-assembly and testing on 12 kg/cm2 oil pressure for leakage. 100 HYDRAULIC PUMP.SCOPE OF WORKi.Dismantling of the pump ii.Repair by welding and machining of bracket, cover, ring backup cover plate and collar.iii.Replacement of the following such as:-a.Drive and driven gear shafts.b.Seal oil, bushing with bearings.c.Local & ‘O’ Ring.iv.Re-assembly and testing on 150 kg/cm2 oil pressure. 101 STEERING PUMP. SCOPE OF WORKi.Dismantling of the pumpii.Repairing by welding and machining of bracket, gear case and side plate housing. iii.Replacement of the following such as:-a.Gears with shaft b.Bearing needle c.Oil Seals.d.‘O’ Ring and its piniv.Re-assembly and testing on 12 kg/cm2 oil pressure. 102 COOLING WATER PUMP. SCOPE OF WORKi.Dismantling of pump ii.Replacement of following such as:-a.Pulleyb.Shaftc.Bearingd.Impellere.Seal & Gaskets etc. iii.Testing of the pump. 103 P.T.O. CASE UNITS (Power Take of Units). SCOPE OF WORKi.Dismantling of P.T.O. case.ii.Cleaning of the components.iii.Replacement of following such as:-a.Bearing No. 500346 - 2Nos.b.Bearing No. 501616 -1No.c.Bearing No. 501778 – 1No.d.Bearing No. S 16070 -2Nos.e.Shaft Pt. No. 501536 – 2Nos.f.‘O’ Ringsg.Gasket h.Cir-clip, Key & lock. 104 OIL COOLER.SCOPE OF WORKi.Dismantling of oil cooler ii.Cleaningof tubes iii.Replacement of following such as:-a.Damaged tubes b.Gaskets.c.Lock draind.bolts & spring washeriv.Testing of collar for leakage. 105 HYDRAULIC CYLINDER.SCOPE OF WORKi.Dismantling of Cylinder.ii.Straightening of the piston rod.iii.Replacement of the following such as:-a. Backup ringb.D.A. fluid seal assy.c. Dust cap d.Split pin e.U packing seatf.Wiper sealg.Clamp bolt i.Piston and plate j.Bushing and plate k.‘O’ Ring valves spring & oil fixesiv.Reassembly of the cylinder 106 RADIATORS. SCOPE OF WORKi.Cleaning of radiator cores and tank by caustic soda and air pressure.ii.Brazing of leakage tubes with replacement of the following such as :- a.Gasket b.Nut, Bolt & washers.iii.Assembly of the Radiator and hydraulic testing. 107 SPROCKETS.SCOPE OF WORKRepairing of sprocket teeth by removing oil welded metal, then re-depositing the metal by welding with suitable electrode, machining the teeth to its standard profile polishing the inner & outer bore to remove spots to its standard profile and dimension. 108 IDLERSSCOPE OF WORKRepairing of idler by welding of inner bore collar of bore flange and riding races by electrodes 1061 and machining of idler to its standard size providing 2 nos. new bearing and taping 16 Nos. holes and 12X8mm. on either side. Provided 16 bolts & 16 washer of 12mm dia. & 45 mm. lengths. Repairing of bracket by welding & machining. Reassembly after providing seal ring, seal ring assy. & ‘O’ rings on shaft. 109 Track Roller Single Flange SCOPE OF WORK FOR EACHRe-metalizing of the rollers outside & including its flanges with suitable electrodes & machining thereafter to the standard size as per drawing/sample. Re-metalizing with suitable electrodes on the outer surface of shaft & its collar & machining thereafter to its standard size as per drg. /sample. Drilling & taping of 6 Nos. of holes on both the side (12mm.size) blanking of oil holes & machining for proper outer surface. Assembly of the machined rollers & shaft with the replacement & fixing of the following required spares for each roller (spares are to be arranged by the contractor at their own cost).a.‘O’ Ring 4 Nos.b.Bearing with bronze(150-30-00019)4 Nos. c. Bolts & Spring Washer 12 Nos. 110 Track Roller Double Flange SCOPE OF WORK FOR EACHRe-metalizing of the rollers outside & including its flanges with suitable electrodes & machining thereafter to the standard size as per drawing/sample. Re-metalizing with suitable electrodes on the outer surface of shaft & its collar & machining thereafter to its standard size as per drg. /sample. Drilling & taping of 6 Nos. of holes on both the side (12mm.size) blanking of oil holes & machining for proper outer surface. Assembly of the machined rollers & shaft with the replacement & fixing of the following required spares for each roller (spares are to be arranged by the contractor at their own cost).a.‘O’ Ring 4 Nos. b.Bearing with bronze(150-30-00019)4 Nos.c. Bolts & Spring Washer12 Nos. 111 Repairing of connecting rod of BEML DozerSCOPE OF WORKa- Grinding of inner bore bearing portion.b- Polishing the inner bore portion matching with bearing (bearing shall be provided by the department).c- Strengthening of bend connecting rod. 112 Repairing of Dozer Seats ( Bottom Seat-1 No., Back Seat-1 No. & Hand Rest-2 Nos. for each set )SCOPE OF WORK FOR EACHa. Fabrication of dozer seats by using by good quality of foam and rexin. All shisham wood bases are to be on horizontal and spring system arrangement. b. Providing 4nos. bolts on each seat with the base. c. Providing 2nos. fastening system on top of back seat. 113 Repairing of cylinder stay assy. Of hydraulic cylinder of BEML dozer.SCOPE OF WORK FOR EACHa. Complete dismantling of cylinder stay assay. And taking out yokes from both sides.b. Cutting of both side cylinder beam form threaded portion.c. Taking out the damaged bushed, re-metalizing and machining the inside portion of the cylinder and yokes to standard size.d. Making thread to both sides as per profile.e. Fitting of new brass bush (arranged by the firm at their own cost) re-joining the outer portion of the cylinder beam by welding.f. Re-assembly of the cylinder stay assy. 114 Repairing of crank shaft of Cummins N-743C Engine of BEML Dozer by 10/20/30 (U/S)I. Main journal (7 Nos.)II.Connecting journals (6 Nos.)SCOPE OF WORKS FOR EACHa. Grinding of Main journals (7 Nos.) with proper fillet radius.b. Grinding of connecting rod bearing journals(6 Nos.) with proper fillet radius. c. Polishing of journals (13Nos.)d. Straightening the bend crank. 115 Repairing of P.T. Fuel oil pump of Cummins N-743C Engine.SCOPE OF WORK a- Dismantling of the complete pump.b- Cleaning and servicing of the pump with replacement of worn out part such as F.P. shaft, ball bearing, key coupling, barrel & plunger, ring snap, half coupling ,shaft throttle tado shaft, gasket set, various type of ‘O’ ring, shim, bushing, gear, adopter, screw pap, shield fuel coil assy., dust cap, plunger cover front etc.c- Testing of the pump on 120kg/cm2 oil pressure. 116 Injector Assy. Of Cummins Engine N-743C Engine.SCOPE OF WORK a. Dismantling of the complete Injector Assy.b. Cleaning and servicing of injector assy. with replacement of worn-out parts such as. Kit barrel plunger, cup injector, pin springs ball point orifice plug, link injector, P. T. O. retainer etc.c. Testing the fuel pressure on 80kg./cm2 117 Repairing Of Cylinder Head Assy. Of Cummins N-743C Engine.SCOPE OF WORK a. Dismantling the complete cylinder head.b. Cleaning and servicing of the cylinder head by replacement of worn out part such as coolant valve, spring valve adjust valve Intake guide, guide spring, leave injector, insert valve etc. 118 Repairing Of Rocker Arm Of Cummins N-743C Engine.SCOPE OF WORK a. Dismantling of the complete RKR assy.b. Cleaning and servicing of RKR assy. With replacement of the worn outparts such as shaft RKR, plug, expansion, lever RKR, Fuel adjusting screw etc. 119 REPAIR OF U.J. ASSEMBLY1. Welding with special L&T, SS electrodes, on the surface of cup portion (04 Nos) machining & grinding finish.2. Replacement of needle bearing assy.(150-11-00350) with its dust seal(04 Nos).3. Replacement of worn out parts such as both the spiders, bearing caps, grease, fitting, bolts & nuts, spring, washer etc.4. Balancing of flanges (02 Nos).5. Painting of complete U.J. assy. 120 BOOSTER ASSEMBLYComplete dismantling of booster pump assy. Through cleaning, metalizing the bore of the body valve and machining to standard size, replacement of won out parts such as washer spring, piston valve, coupling snap, ring etc. Re-assembly and painting. 121 LUBRICATING OIL PUMPComplete dismantling of pump, repair/reconditioning of shafts by re-metalizing and machining, replacement of worn-out parts such as bushing, gasket, lick-washer, gears, pressure relief valve, calibration and testing of pump for leakages at 6kg.cm2 122 REPAIRIONG OF RETAINER OF CLUTCH ASSLY.SCOPE OF WORK FOR EACH1. Re-metaling the worn out inner and outer portion of retainer by suitable electrode.2. Machining, grinding & finishing the re-metaling portion as per original profile.
