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Data, Ratings & Clearances forAjax Engines

UNIT SPECIFICATIONSA.GENERALDescriptionC-30C-42Engine Bore & Stroke7-1/2” X 10” 8-1/2” X 10”Compressor Stroke8”8”Horsepower @ Max Speed3042Max RPM525525Rod Load Rating11,00011,000Fuel Injection System Specifications:Volume Tank2 cu. ft.2 cu. ft.Hose or Pipe Size (tank to unit)1-1/2”1-1/2”Regulator (Fisher size & model)1” 6201” 620Regulator Spring No.1D-89231D-8923Max Inlet Pressure500 psi500 psiRegulator Orifice Size:10-30 Inlet Pressure1/2”1/2”31-50 Inlet Pressure3/8”3/8”51-75 Inlet Pressure1/4”1/4”76-500 Inlet Pressure1/4”1/4”Tank Pressure Req’d5-20 psi5-20 psiAir/Gas Starting System:Air Pressure, Max.150 psi250 psiVolume Required (per minute) 5 cu. ft.7-10 cu. ft.Exhaust System:Exhaust Pipe Size4”4”Muffler Oulet Size6”6”Exhaust Pipe Length6475/RPM 5000/RPMCapacities:Crankcase Oil (approx.)5 Gal.8 Gal.Oil Level – Dist from Top19-7/8”19-7/8”Power Cyl. Lube Rate (pints/day) 1.21.7Radiator Cooling System7 Gal.7 Gal.Cooler Cooling SystemEngine Jacket Water6.5 Gal.7 Gal.Compressor Jacket Water 10 Gal.11 Gal.DPC-60DPC-819-1/2” X 12” 10-1/2” X 12”8”8”608147547511,00011,0003 cu. ft.1-1/2”1” 6201D-8923500 psi3 cu. ft.1-1/2”1” 6201D-8923500 psi1/2”3/8”1/4”1/4”5-20 psi1/2”3/8”1/4”1/4”5-20 psi250 psi250 psi10-15 cu. ft. 10-15 cu. ft.6”8”6175/RPM6”8”6400/RPM17 Gal.22-1/2”2.412.5 Gal.17 Gal.22-1/2”3.212.5 Gal.13 Gal.11 Gal.12.5 Gal.24 Gal.

UNIT SPECIFICATIONS (cont’d)A.GENERAL (cont’d)DescriptionDPC-80-AEngine Bore & Stroke11” X 14”Compressor Stroke11”Horsepower @ Max Speed80Max RPM400Rod Load Rating17,600Fuel Injection System Specifications:Volume Tank3 cu. ft.Hose or Pipe Size (tank to unit)1-1/2”Regulator (Fisher size & model)1” 620Regulator Spring No.1D-8923Max Inlet Pressure500 psiRegulator Orifice Size:10-30 Inlet Pressure31-50 Inlet Pressure1/2”51-75 Inlet Pressure3/8”76-500 Inlet Pressure1/4”DPC-105DPC-115DPC-1208-1/2” X 10” 9-1/2” X 12” (2)10-1/2” X 1,0004 cu. ft.1-1/2”1” 6201D-8923500 psi4 cu. ft.1-1/2”1” 6201D-8923500 psi3 cu. ft.1-1/2”1” 6201D-8923500 psi1/2”3/8”1/4”OR2” 630W-1921500 psi1/2”3/8”1/4”1/2”3/8”1/4”Regulator (Fisher size & model)2” 6302” 6302” 630Regulator Spring No.W-192W-192W-192Max Inlet Pressure1500 psi1500 psi1500 psiRegulator Orifice Size:10-50 Inlet Pressure3/8”3/8”3/8”3/8”Tank Pressure Req’d5-20 psi5-20 psi5-20 psi5-20 psiAir/Gas Starting System:Air Pressure, Max.250 psi250 psi250 psi250 psiVolume Required (per minute) 10-15 cu. ft. 15-20 cu. ft. 13-20 cu. ft. 20-30 cu. ft.Exhaust System:Exhaust Pipe Size6”8”8”(2) 6”Muffler Outlet Size8”10”12”12”Exhaust Pipe Length5600/RPM 6375/RPM 6000/RPM 6175/RPMCapacities:Crankcase Oil (approx.)23 Gal.23 Gal.25 Gal.25 Gal.Oil Level – Dist from Top26-7/8”26-7/8”28”22-1/2”Power Cyl. Lube Rate (pints/day) 3.24.24.62.4 (per cyl)Radiator Cooling System14 Gal.14 Gal.26 Gal.Cooler Cooling SystemEngine Jacket Water14 Gal.26 Gal.Compressor Jacket Water 13 Gal.13 Gal.Combined Systems27 Gal.65 Gal.

UNIT SPECIFICATIONS (cont’d)A.GENERAL ngine Bore & Stroke13-1/4” X 16” (2) 10-1/2” X 12” 15” X 16” (2) 13-1/4” X 16”Compressor Stroke11”8”11”11”Horsepower @ Max Speed140162180230Max RPM400475400360Rod Load Rating25,00011,00030,00022,000Fuel Injection System Specifications:Volume Tank4 cu. ft.3 cu. ft.5 cu. ft.43 cu. ft.Hose or Pipe Size (tank to unit)1-1/2”1-1/2”1-1/2”2”Regulator (Fisher size & model)1” 6201” 6201” 6201” 620Regulator Spring No.1D-89231D-89231D-89231D-8923Max Inlet Pressure500 psi500 psi500 psi500 psiRegulator Orifice Size:10-30 Inlet Pressure31-50 Inlet Pressure1/2”1/2”1/2”1/2”51-75 Inlet Pressure3/8”1/2”3/8”3/8”76-500 Inlet Pressure1/4”1/4”1/4”1/4”ORRegulator (Fisher size & model)2” 6302” 6302” 6302” 630Regulator Spring No.W-192W-192W-192W-192Max Inlet Pressure1500 psi1500 psi1500 psi1500 psiRegulator Orifice Size:10-50 Inlet Pressure1/2”1/2”1/2”1/2”Tank Pressure Req’d5-20 psi5-20 psi5-20 psi5-20 psiAir/Gas Starting System:Air Pressure, Max.250 psi250 psi250 psi250 psiVolume Required (per minute) 13-20 cu. ft. 20-30 cu. ft. 20-30 cu. ft. 20-30 cu. ft.Exhaust System:Exhaust Pipe Size8”(2) 6”10”(2) 8”Muffler Outlet Size12”14”12”Exhaust Pipe Length6000/RPM 6400/RPM 6400/RPM 6000/RPMCapacities:Crankcase Oil (approx.)25 Gal.25 Gal.25 Gal.30 Gal.Oil Level – Dist from Top28”22-1/2”28”28”Power Cyl. Lube Rate (pints/day) 5.63.2 (per cyl)7.24.6 (per cyl)Radiator Cooling System39 Gal.48 Gal.Cooler Cooling SystemCombined Systems80 Gal.92 Gal.

UNIT SPECIFICATIONS (cont’d)A.GENERAL (cont’d)DescriptionDPC-280DPC-300Engine Bore & Stroke(2)13-1/4”” X 16” (2) 15”” X 16”Compressor Stroke11”11”Horsepower @ Max Speed280300Max RPM400360Rod Load Rating25,00025,000Fuel Injection System Specifications:Volume Tank4 cu. ft.5 cu. ft.Hose or Pipe Size (tank to unit)2”2”Regulator (Fisher size & model)1” 6201” 620Regulator Spring No.1D-89231D-8923Max. Inlet Pressure500 psi500 psiRegulator Orifice Size:51-150 Inlet Pressure1/2”1/2”150-500 Inlet Pressure3/8”3/8”ORRegulator (Fisher size & model)2” 6302” 630Regulator Spring No.W-192W-192Max Inlet Pressure1500 psi1500 psiRegulator Orifice Size:10-50 Inlet Pressure1/2”1/2”Tank Pressure Req’d5-20 psi5-20 psiAir/Gas Starting System:Air Pressure, Max.250 psi250 psiVolume Required (per minute) 20-30 cu. ft.35-45 cu. ft.Exhaust System:Exhaust Pipe Size(2) 8”(2) 10”Muffler Outlet Size12”14”Exhaust Pipe Length6000/RPM6400/RPMCapacities:Crankcase Oil (approx.)30 Gal.30 Gal.Oil Level – Dist from Top28”28”Power Cyl. Lube Rate (pints/day) 5.6 (per cyl)3.2 (per cyl)Cooler Cooling SystemCombined Systems95 Gal.100 Gal.DPC-360(2) 15” X 16”11”36040030,0005 cu. ft.2”1” 6201D-8923500 psi1/2”3/8”2” 630W-1921500 psi1/2”5-20 psi250 psi35-45 cu. ft.(2)10”14”6400/RPM30 Gal.28”7.2 (per cyl)125 Gal.

UNIT SPECIFICATIONS (cont’d)A.GENERAL (cont’d)DescriptionDPC-600DPC-800Engine Bore & Stroke(3)15”” X 16” (4) 15”” X 16”Compressor Stroke11”11”Horsepower @ Max Speed600800Max RPM400400Rod Load Rating40,00040,000Fuel Injection System Specifications:Hose or Pipe Size (tank to unit)2”2”Volume Tank10-1/2 cu. ft.14 cu. ft.Regulator (Fisher size & model)2” 6302” 630Regulator Spring No.W-191W-191Max Inlet Pressure260 psi260 psiRegulator Orifice Size:10-50 Inlet Pressure1/2”1/2”Tank Pressure Req’d5-20 psi5-20 psiAir/Gas Starting System:Air Pressure, Max.250 psi250 psiVolume Required (per minute) 50-65 cu. ft.65-85 cu. ft.Exhaust System:Exhaust Pipe Size(3) 10”(2) 10”Muffler Outlet Size18”18”Exhaust Pipe Length6400/RPM6400/RPMCapacities:Crankcase Oil (approx.)58 Gal.95 Gal.Oil Level – Dist from Top28”28”Power Cyl. Lube Rate (pints/day) 8 (per cyl)8 (per cyl)Cooler Cooling SystemCombined Systems150 Gal.200 Gal.

UNIT SPECIFICATIONS (cont’d)A.GENERAL (cont’d)DescriptionDPC-2201&LE DPC-2202&LE DPC-2801&LE DPC-2802&LEEngine Bore & Stroke13-1/4” X 16” (2) 13-1/4” X 16” 15” X 16”(2) 15” X 16”Compressor Stroke11”11”11”11”Horsepower @ Max Speed148296192384Max RPM440440440440Rod Load Rating30,00030,00030,00030,000Fuel Injection System Specifications:Volume Tank4 cu. ft.4 cu. ft.5 cu. ft.5 cu. ft.Hose or Pipe Size (tank to unit)2”2”2”2”Regulator (Fisher size & model)1” 6201” 6201” 6201” 620Regulator Spring No.1D-89231D-89231D-89231D-8923Max Inlet Pressure500 psi500 psi500 psi500 psiRegulator Orifice Size:31-50 Inlet Pressure1/2”1/2”1/2”51-75 Inlet Pressure3/8”3/8”3/8”1/2”76-500 Inlet Pressure1/4”1/4”1/4”3/8”ORRegulator (Fisher size & model)2” 6302” 6302” 6302” 630Regulator Spring No.W-192W-192W-192W-192Max Inlet Pressure1500 psi1500 psi1500 psi1500 psiRegulator Orifice Size:10-50 Inlet Pressure3/8”1/2”1/2”1/2”Tank Pressure Req’d5-20 psi5-20 psi5-20 psi5-20 psiAir/Gas Starting System:Air Pressure, Max.250 psi250 psi250 psi250 psiVolume Required (per minute) 13-20 cu. ft.20-30 cu. ft. 20-30 cu. ft.35-45 cu. ft.Exhaust System:Exhaust Pipe Size(1) 8”(2) 8”10”(2) 10”Muffler Outlet Size12”12”14”14”Exhaust Pipe rankcase Oil (approx.)30 Gal.30 Gal.25 Gal.30 Gal.Oil Level – Dist from Top28”28”28”28”Power Cyl. Lube Rate (pints/day) 4.9 (per cyl)4.9 (per cyl)6.4 (per cyl)6.4 (per cyl)Radiator Cooling System48 Gal.Cooler Cooling SystemEngine Jacket Water26 Gal.Compressor Jacket Water 13 Gal.Combined Systems92 Gal.125 Gal.

UNIT SPECIFICATIONS (cont’d)A.GENERAL (cont’d)DescriptionDPC-2803DPC-2804 DPC-2803LEEngine Bore & Stroke(3) 15” X 16” (3) 15” X 16” (4) 15” X 16”Compressor Stroke11”11”11“Horsepower @ Max Speed634845600Max RPM440440440Rod Load Rating40,00040,00040,000Fuel Injection System Specifications:Volume Tank10-1/2 cu. ft.14 cu. ft.10/1/2 cu. ft.Hose or Pipe Size (tank to unit)2”2”2”Regulator (Fisher size & model)2” 6302” 6302” 630Regulator Spring No.W-191W-191W-191Max Inlet Pressure260 psi260 psi260 psiRegulator Orifice Size:10-50 Inlet Pressure1/2”1/2”1/2”Tank Pressure Req’d5-20 psi5-20 psi5-20 psiAir/Gas Starting System:Air Pressure, Max.250 psi250 psi250 psiVolume Required (per minute) 50-65 cu. ft.65-85 cu. ft. 50-65 cu. ft.Exhaust System:Exhaust Pipe Size(3) 10”(2) 10”(3) 10”Muffler Outlet Size18”18”18”Exhaust Pipe Length6400/RPM6400/RPM6400/RPMCapacities:Crankcase Oil (approx.)58 Gal.95 Gal.58 Gal.Oil Level – Dist from Top28”28”28”Power Cyl. Lube Rate (pints/day) 7 (per cyl)7 (per cyl)6.7 (per cyl)Cooler Cooling SystemCombined Systems150 Gal.200 Gal.150 Gal.DPC-2804LE(4) 15” X 16”11”80044040,00014 cu. ft.2”2” 630W-191260 psi1/2”5-20 psi250 psi65-85 cu. ft.(2) 10”18”6400/RPM95 Gal.28”6.7 (per cyl)200 Gal.

UNIT SPERCIFICATIONS (cont’d)B. CLEARANCE AND TORQUE VALUESDescriptionC-30Clearances:Roller Main Bearing:- Fit to Shaft (tight).001-.003- Bench Lateral (installed loose) .0009-.0083Crankpin Bearing-Power.002-.0064- Side Clearance- Compressor.002-.0064- Side ClearanceCrosshead Pin Bearing-Power.002-.0035- Compressor.002-.0035Crosshead to Guide-Power.007-.009- Compressor.007-.009Piston to Power Cylinder:- Skirt.012-.017- Below 3rd Comp. Ring.020-.028- 3rd Ring Land.030-.038.040-.048- 2nd Ring Landst- 1 Ring Land.063-071Piston Ring End Gap.070-.085Piston Ring to Side of:- 1st & 2nd Groove.006-.0085- All Other Grooves.004-.0065Piston Crown to HeadGasket Surface (distance)Layshaft Drive Gear Backlash.003-.005Layshaft End Play.005Mag Drive Shaft End Play.003-.014Governor Drive Shaft End Play.003-.006Flywheel Rim Runout (external start)Mixer Manifold (min. thickness after regrind)- Old Style- New Plate Style (square)- New Style Plate (round)Torque Values (ft. lbs. for lubricated threads):Connecting Rod Bolts325-360Cylinder Heads Stud Nuts200Piston Rod to Crosshead Nuts1000Crosshead Pin Lock Screws20Piston Rod Lock Screws25Flywheel Bolt and Nuts520Cooler Drive Sheave Bolt/Nuts225Power Cyl. to Frame Studs200Main Bearing Support to Frame50Compressor Guide to Frame 022520050280-300