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MAST A 0543704 - Caterpillar



0543704 MAST A Caterpillar parts MAST
Rating:
46
Alternative (cross code) number:
CA0543704
054-3704
0543704
Caterpillar 0543704 MAST A

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Fuel Properties
Blended (Heavy) fuels are usually described by their viscosity, expressed either in "centistokes" (cSt) or "Seconds Redwood". The Redwood scale at 100°F is being phased out and replaced by the centistokes scale at 50°C. The centistoke viscosity may be preceded by the letters IF for "intermediate fuel" or IBF for "intermediate bunker fuel". For example, IF 180 fuel has a viscosity of 180 cSt at 50°C. The following table gives the approximate relationship between the two scales.Fuel Properties
Density and Specific Gravity
Fuel API Correction Chart - API Gravity Corrected to 60°F
Tooling: Fuel Thermo-hydrometer 1P7408Test Breaker 1P7438Distillate Fuel Temperature
Maximum Fuel Supply Temperature:- Without Power Reduction: 85°F (29°C)Power is reduced 1% for each 10°F (5.6°C) above 100°F (38°C) if engine is running against fuel stop.- Without Injector Damage: 150°F (65°C)Performance Analysis Rules of Thumb
Correction Factors:Power Calculation:
BSFCTolerances
Performance curves represent typical values obtained under normal operating conditions. Ambient air conditions and fuel used will affect these values. Each of the values may vary in accordance with the following tolerances:Exhaust Stack Temperature 42 DEG C 75 DEG FIntake Manifold Pressure-Gage 10 kPa 3 in HgPower 3 PercentFuel Consumption 6 g/kW-hr .010 lb/hp-hrFuel Rate 5 PercentConditions
Ratings are based on SAE J1349 standard conditions of 100 kPa (29.61 in Hg) and 25°C (77°F). These ratings also apply at ISO 3046/1, DIN 6271 and BS 5514 standard conditions of 100 kPa (29.61 in Hg), 27°C (81°F) and 60% relative humidity.Fuel Rates are based on fuel oil of 35° API [16°C (60°F)] gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at 29°C (85°F) and weighing 838.9 g/liter (7.001 lbs/U.S. gal).Additional Formulas Used to Develop Marine Par Curves
For Torque Check GPH proceed as follows:Torque Check GPH = TQ COR. Fuel Rate (G/MIN) ÷ 454 × 60 = LBS/HRLBS/HR ÷ 7.076 = GPHFor BSFC proceed as follows:BSFC = Adjusted CSFC (G/kW HR) ÷ 454 = LBS/kW HRLBS/kW HR ÷ 1.34 = BSFC (LBS/HP HR)Recommended "Guide Line" Gas Supply Pressures for Caterpillar Gas Engines - All Values in PSIG (kPag) Natural Gas
Gas Regulator Capacity Chart
Fuel Gas Methane Numbers
Physical Constants of Gases:
Air-Fuel Ratio Adjustment for Initial Start-up:
Fuel Consumption Calculation
Published fuel consumption values are for 905 BTU/FT3 LHV. To calculate fuel consumption for other fuel gas, the following equation can be used:Special Lube Oil Information for Gas Engines:
Condemning limits
Alternate Oil Analysis (additional test procedures for more data)-1Differential infrared analysis of used oil must not exceed the following absorbance/CM:
Scheduled Oil SamplingIf analysis of the used oil at the recommended oil change interval exceeds the condemning limits, the following courses of action can be taken:1. Modify the jacket water temperature and/or adjust the air-to-fuel to minimize the oil degradation rate.2. Shorten the oil change interval.3. Work with your oil supplier to arrive at an oil that will not exceed the limits.Maximum PPM (Parts Per Million) of Wear Metals Detected at 750 Hours to Achieve Projected Overhaul Interval
Oil Failure
Causes and Avoidance
Symptoms of oil failure are stuck piston rings, heavy piston deposits, sludged oil, plugged oil filters, rapid ring and liner wear,


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