Periodic Maintenance of Backhoe Loader Escorts 07420

Complete periodic powertrain lubrication and multi-stage filtration overhaul for Kirloskar 4R1190 diesel engine of Escorts 4DX Backhoe Loader: Complete draining of engine crankcase oil while hot; replenishment with 11.5 litres of premium virgin multigrade diesel engine oil SAE 15W-40 API CI-4 conforming strictly to IS 13656:2019 Clause 4.3, engineered for heavy-duty turbo-charged mountain snow-clearance operations; supply and fitment of genuine OEM spin-on full-flow engine lubrication oil filter with integrated anti-drainback valve; renewal of primary fuel pre-filter with transparent water sedimenter trap bowl, and secondary fine-micron paper cartridge fuel filter conforming to IS 1448 Clause 6; complete disassembly, thorough compressed-air cleaning, and replacement of heavy-duty dual-element dry-type radial seal air filter assembly comprising outer cellulose pleated element and inner polyurethane safety core; inspection and tightening of turbocharger intake hoses and exhaust manifold clamps; priming fuel injection pump, bleeding air from high-pressure injector lines, cold-start cranking test, and 30-minute high-idle test run to verify zero oil or fuel seepage under operating temperature, complete with all technician labor, specialized filter wrenches, environmentally safe disposal of spent fluids, and workshop consumables, GST-inclusive. Qty 1 Job.

Supply, fabrication, precision machining, chamfering, and rigid mounting of heavy-duty front snow clearance bucket toe plate cutting edge for Escorts 4DX loader bucket: Fabricated from high-tensile structural carbon steel plate conforming strictly to IS 2062:2011 Grade A Clause 5.2, finished dimensions 2438mm length by 254mm width by 25.4mm thickness, single continuous bevel cutting profile with minimum surface hardness of 130 to 160 BHN, total finished plate weight approximately 123 kg; precision drilled with 12 Nos. countersunk mounting holes spaced to align with the loader bucket lip; supplied with 12 sets of high-tensile hex head plow bolts, flanged lock nuts, and hardened mechanical washers Grade 8.8 conforming to IS 1367:2002 Clause 8.2 with zinc-electroplated anti-corrosion coating; removal of worn existing blade, surface cleaning and mechanical dressing of bucket lip, mounting of cutting edge, torquing of bolts to 450 Nm with calibrated torque wrench, full bucket down-pressure functional test on asphalt surface, and comprehensive 12-month operational warranty against premature cracking, fracturing, edge wear, or structural distortion, complete with all workshop labor, hoisting gear, welding consumables, site fitment, alignment checks, and overheads, GST-inclusive. Qty 1 No. and job includes cost of painting and letter writing.

Comprehensive workshop overhaul, precision line-boring, bushing replacement, alignment validation, and structural hard-facing weld repair of Escorts 4DX loader bucket and backhoe boom linkages: Precision hydraulic extraction of worn articulation pins and damaged steel sleeves; supply and press-fit installation of genuine OEM induction-hardened alloy steel pivot pins (surface hardness 58 to 62 HRC) and spiral-grooved wear-resistant steel bushings across loader arm-to-bucket pivots, bell-crank linkages, backhoe boom foot, dipper arm pivot, and hydraulic tipping linkages; structural inspection and crack gouging repair of D-section loader arms and bucket side cheeks using heavy-duty manual metal arc welding conforming strictly to IS 817:1992 Clause 6.2 with low-hydrogen electrodes AWS E7018; deposit of 4mm thick abrasion-resistant hard-facing weld overlay along high-wear internal guide ribs; in-situ line-boring of ovalized pin bores to restore original manufacturer tolerances; installation of double-lip polyurethane wiper dust seals; alignment verification using optical gauges; complete high-pressure greasing across all lubrication nipples, functional articulation cycling, and dynamic load testing under severe mountain working conditions, inclusive of all machinist labor, portable boring equipment, fitting tools, workshop consumables, anti-corrosion protective coating, and 12-month performance warranty. Qty 1 Set.

Comprehensive workshop overhaul, barrel honing, rod micro-polishing, resealing, and hydrostatic testing of 4 Nos. hydraulic working cylinders for Escorts 4DX Backhoe Loader comprising two loader lift cylinders, one loader bucket tilt cylinder, and one backhoe dipper cylinder: Complete disassembly of cylinder barrels, piston heads, glands, and rod assemblies; chemical degreasing, ultrasonic cleaning, and internal micro-polishing of cylinder barrels; dimensional inspection of piston rods for scoring, ovality, and runout; supply and installation of complete heavy-duty OEM seal refurbishment kits conforming strictly to IS 11875:1986 Clause 6.1, including step-cut polyurethane piston seals, nitrile energizers, heavy-duty rod U-cup seals, bi-directional buffer rings, phenolic wear guide rings, and double-lip metal-cased polyurethane wiper scrapers; dynamic resealing of cylinder gland heads and high-temperature O-ring backup rings; full hydrostatic pressure proof-testing at 225 bar system relief pressure conforming to IS 10522:1983 Clause 7 to verify zero external leakage and zero internal piston bypass over 15-minute hold time; reinstallation onto machine chassis, high-pressure connection, system air bleeding, and full-stroke functional cycling under full hydraulic payload, complete with all specialized hydraulic tools, seal kits, technician labor, testing gauges, and warranty. Qty 1 Job.

Supply, fabrication, pressure testing, and fitment of heavy-duty flexible high-pressure hydraulic wire-braided hose assemblies for loader arm lifting and lowering hydraulic circuits of Escorts 4DX Backhoe Loader: Fabricated from four-spiral high-tensile steel wire reinforced synthetic rubber hose conforming strictly to SAE 100R2 Type AT and IS 4854:1997 Clause 7.3, nominal internal diameter 19mm (3/4 inch), outer cover of ozone, weather, and severe abrasion-resistant synthetic rubber; maximum continuous working pressure rating of 330 bar with minimum 4:1 burst safety factor; factory-crimped high-pressure carbon steel end terminations with BSP female swivel nut female cone seat fittings and 90-degree elbow configurations; twin hose bundle comprising 2 Nos. continuous length hoses of 2.80 meters each (total 5.60 meters); full batch hydrostatic proof-pressure testing at 495 bar (1.5 times maximum working pressure) conforming to IS 4854 Clause 8 with zero leakage or coupling slippage; routing through chassis guides with heavy-duty spiral protective plastic wrapping; mounting onto machine, air bleeding, and operational pressure cycling under full hydraulic payload across heavy snow clearing cycles, complete with all technician labor, crimping consumables, fittings, testing reports, and 12-month performance warranty. Qty 1 Set.

Supply, fabrication, hydrostatic workshop testing, and precision fitment of high-pressure wire-braided hydraulic hose assemblies for loader bucket crowd and dump hydraulic circuits of Escorts 4DX Backhoe Loader: Constructed from heavy-duty two-wire high-tensile steel braided synthetic rubber hydraulic hose conforming strictly to SAE 100R2 and IS 4854:1997 Clause 7.3, nominal internal bore diameter 12.7mm (1/2 inch); rated for continuous operating working pressure of 330 bar and minimum burst pressure rating of 1320 bar; fitted with precision factory-swaged forged carbon steel end connectors comprising straight female BSP swivel nut fittings and compact 45-degree swept elbow ends with heavy-duty hex crimp collars; package comprising 2 Nos. matched hydraulic hoses of 2.20 meters length each (total linear length 4.40 meters); individual hydrostatic workshop pressure hold testing at 495 bar (1.5 times maximum rated operating pressure) with zero pressure decay; routing along loader boom frame with heavy-duty anti-chafing nylon sleeves and twin-tube steel mounting clamps; complete installation, coupling to valve block, bleeding air from tilt rams, and functional cycling under maximum bucket breakout load, with all technician labor, specialized crimping, leak checks, and consumables. Qty 1 Set.

Supply, custom fabrication, hydrostatic pressure validation, and installation of heavy-duty flexible hydraulic hose assemblies for backhoe auxiliary boom and dipper articulation circuits on Escorts 4DX Backhoe Loader: Manufactured from four-spiral high-tensile steel wire reinforced synthetic rubber hose conforming strictly to SAE 100R2 Type AT and IS 4854:1997 Clause 7.3, nominal inner diameter 19mm (3/4 inch); rated for continuous operating pressure of 330 bar and extreme pulse burst resistance of 1320 bar; equipped with factory-crimped zinc-plated forged steel end couplings with female BSP swivel nuts and heavy-duty 90-degree forged elbow blocks; set comprising 2 Nos. matched hydraulic lines of 3.20 meters continuous length each (total assembly length 6.40 meters); certified hydrostatic proof testing in workshop test rig at 495 bar (1.5 times working pressure) for 5 minutes with zero fluid weeping or fitting displacement; protective installation through dipper arm guide brackets with heavy-duty spiral poly guard wrap to prevent rock abrasion; fitment onto machine, torque check of fittings, system hydraulic bleeding, and full-reach functional cycling under maximum trenching load, complete with all skilled fitment labor, tools, and consumables. Qty 1 Set.

Complete industrial reconditioning, chemical descaling, core pressure testing, and overhaul of heavy-duty engine radiator and liquid cooling system for Escorts 4DX Backhoe Loader: Safe extraction of copper-brass radiator core from chassis; thorough chemical circulation cleaning and descaling using inhibited sulfamic acid formulation conforming to IS 8190:1976 Clause 4 to dissolve heavy mineral scaling and silicate deposits; high-pressure back-flushing of coolant passages and external matrix using regulated compressed air and water washing; solder repair and structural reinforcement of tank header seams and mounting brackets; pneumatic immersion leak testing at 1.5 bar internal pressure (1.2 times radiator cap rating) to verify complete core soundness; supply and installation of new EPDM molded upper and lower radiator coolant hoses with stainless steel worm-drive hose clips conforming to IS 4762:1984 Clause 5; inspection and renewal of dual matched raw-edge cogged cooling fan V-belts conforming to IS 2494:1994 Clause 3; replacement of dual-action thermostat valve; reassembly onto chassis with anti-vibration rubber mounts; complete replenishment with 15L pre-mixed ethylene glycol antifreeze coolant conforming to IS 5759:1994 Clause 3, and operational thermal running test under load. Qty 1 Job.

Comprehensive workshop bench overhaul, precision resealing, and high-pressure flow calibration of main tandem hydraulic gear pump assembly for Escorts 4DX Backhoe Loader: Complete extraction of two-stage aluminum/cast-iron tandem gear pump from engine PTO drive; thorough degreasing and ultrasonic cleaning of all internal components; micro-metric inspection of hardened alloy steel gear teeth, bearing journals, and drive splines for mechanical pitting, backlash wear, or cavitation erosion; replacement of high-precision bronze-backed PTFE pressure-balanced thrust wear plates to eliminate internal fluid slippage and restore hydraulic volumetric efficiency; supply and replacement of complete internal high-temperature fluorocarbon (Viton) seal kit conforming strictly to IS 11875:1986 Clause 6.1, including high-pressure backup rings, shaft oil seals, and housing perimeter O-rings; reassembly with calibrated torque wrench; specialized test bench mounting and hydrostatic proof testing at 225 bar continuous operating relief pressure conforming strictly to IS 10522:1983 Clause 7 to verify rated pump flow delivery and zero shaft seal weeping; reinstallation onto machine chassis, coupling to drive shaft, priming, and full hydraulic circuit pressure test under load, complete with all technician labor, pressure gauges, testing certificate, and 12-month operational warranty against cavitation failure or pressure drop. Qty 1 Job.