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Summary of Contents for Perkins 4008-30 SD8
- Page 1 M0064276 (en-us) December 2015 Systems Operation Testing and Adjusting 4008-30 Industrial Engine SD8 (Engine)
- Page 2 These changes can affect the service that is given to the product. Obtain the complete and most current information before you start any job. Perkins dealers or Perkins distributors have the most current information available. When replacement parts are required for this product Perkins recommends using Perkins replacement parts.
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Page 3: Table Of Contents
M0064276 Table of Contents Table of Contents Flywheel - Inspect ..........33 Flywheel Housing - Inspect ........34 Crankshaft Thrust - Measure........35 Vibration Damper ..........36 Systems Operation Section Gear Group (Front)..........37 Fuel System Electrical System Fuel System Operation ..........4 Battery ...............38 Fuel Injector Mechanism........4 Charging System ..........38 Electric Starting System........38 Air Inlet and Exhaust System... -
Page 4: Systems Operation Section
M0064276 Fuel System Systems Operation Section A speed sensor measures engine speed. A digital governor regulates the input of the fuel to the engine so that the actual engine speed matches the desired engine speed. Engine speed is maintained by the Fuel System governor by a speed sensor. -
Page 5: Air Inlet And Exhaust System
M0064276 Air Inlet and Exhaust System Air Inlet and Exhaust Clean inlet air from the air cleaners is pulled through air inlet (4) into the turbocharger compressor by System compressor wheel (5). The rotation of the compressor wheel compresses the air. The rotation of the turbocharger compressor wheel then forces the air through a tube to aftercooler (2). - Page 6 M0064276 Air Inlet and Exhaust System Valve springs cause the valves to close when the lifters move downward.
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Page 7: Lubrication System
M0064276 Lubrication System Lubrication System i06512672 Lubrication System Lubrication System Components Illustration 2 g01372216 Typical example of the lubrication system components (A) Oil pressure circuit (2) Engine oil pump (7) Engine oil pan (B) Oil circuit for piston cooling (3) Engine oil relief valve (8) Oil supply line for turbocharger (C) Oil pressure relief (4) Strainer... - Page 8 M0064276 Lubrication System Engine Oil Flow Through the Engine Oil Filter and Engine Oil Cooler When the engine is at normal operating temperature, the engine oil pump (2) pumps engine oil from the engine oil pan (7) through the strainer (4). The engine oil is pumped to the engine oil cooler (5).
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Page 9: Cooling System
M0064276 Cooling System Cooling System i06512674 Cooling System The coolant is circulated through the engine by a centrifugal water pump. The water pump is on the front of the engine. The water pump has a gear that is driven by the idler gear. Coolant from the inlet line goes into the water pump. -
Page 10: Basic Engine
M0064276 Basic Engine Basic Engine Camshaft covers allow access to the camshaft and to the valve lifters. Crankcase covers allow access to the crankshaft connecting rods, the main bearings, and the piston cooling jets. When the covers are removed, all the openings can be used for inspection and for service. -
Page 11: Crankshaft
Note: The balance weights that are on the crankshaft must not be removed. If a balance weight needs to be replaced, the crankshaft must be returned to Perkins. i06512671 Camshaft There is one camshaft that runs through the cylinder block. -
Page 12: Electrical System
M0064276 Electrical System Electrical System i02692982 Electrical System The electrical system may have a charging circuit. The electrical system will have a starting circuit, and a low amperage circuit. Some of the electrical system components are used in more than one circuit. The charging circuit is in operation when the engine is running. - Page 13 M0064276 Electrical System Alternator Illustration 3 g01357159 Alternator (1) Slip rings (3) Stator (5) Brush assembly (2) Fan (4) Rotor The alternator is a three-phase charging unit that contains an integral voltage regulator. The alternator is driven from a notched auxiliary drive belt.
- Page 14 M0064276 Electrical System Starting System Components...
- Page 15 M0064276 Electrical System Starting Motor Illustration 4 g01357162 (1) Field (4) Pinion (7) Armature (2) Solenoid (5) Commutator (3) Clutch (6) Brush assembly The starting solenoid (2) is an electromagnetic switch When two sets of solenoid windings are used, the that performs the following basic operations: windings are called the hold-in winding and the pull-in winding.
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Page 16: Testing And Adjusting Section
M0064276 Electronic Control System Testing And Adjusting Section Electronic Control System i02857716 Engine Governing - Adjust The engine is governed by the Pandaros Digital Governor. In order to make adjustments to the Pandaros Digital Governor, refer to Special Instruction, REHS2806, “Pandoras Digital Governor” for more information. -
Page 17: Fuel System
M0064276 Fuel System Fuel System 4. Inspect the pressure valve on the fuel return rail. i02990052 Checking Engine Cylinders i06551648 General Information (Fuel When the engine is under load, the temperature of an System) exhaust manifold port can indicate the condition of a fuel injector. -
Page 18: Air Inlet And Exhaust System
NOTICE Only qualified service personel should perform this maintenance. Refer to the Service Manual or your au- thorized Perkins dealer or your Perkins distributor for the complete valve lash adjustment procedure. Operation of Perkins engines with incorrect valve lash can reduce engine efficiency, and also reduce engine component life. - Page 19 M0064276 Air Inlet and Exhaust System (Table 2, contd) Illustration 7 g06006364 Typical example 5. Remove the blanking plug in the flywheel housing. Use Tooling (A) to rotate the crankshaft until the appropriate mark (4) on the flywheel is in alignment with the pointers (3).
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Page 20: Turbocharger
M0064276 Air Inlet and Exhaust System Illustration 10 g01241917 Typical example 12. Ensure the rocker cover (2) is clean and free from damage. Ensure the joint face of the rocker base (10) is clean and free from damage. Illustration 9 g01241598 13. - Page 21 M0064276 Air Inlet and Exhaust System 4. Inspect the compressor and the compressor wheel NOTICE housing for oil leakage. An oil leak from the Keep all parts clean from contaminants. compressor may deposit oil in the aftercooler. Contaminants may cause rapid wear and shortened Drain and clean the aftercooler if you find oil in the component life.
- Page 22 M0064276 Air Inlet and Exhaust System oil sludge. If necessary, clean the rotating assembly shaft. If necessary, clean the drain opening. If necessary, clean the drain line. b. If crankcase pressure is high, or if the oil drain is restricted, pressure in the center housing may be greater than the pressure of turbine housing (1).
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Page 23: Lubrication System
M0064276 Lubrication System Lubrication System i06515918 General Information (Lubrication System) The following problems generally indicate a problem in the lubrication system of the engine. • Excessive consumption of engine oil • Low engine oil pressure • High engine oil pressure •... -
Page 24: Excessive Bearing Wear - Inspect
M0064276 Lubrication System Illustration 12 g01371843 Pressure test location (1) Location for the pressure test 2. Connect the Tooling (A) to location (1) on the Note: A record of engine oil pressure can be used as an indication of possible engine problems or damage. engine oil filter housing. -
Page 25: Excessive Engine Oil Consumption - Inspect
M0064276 Lubrication System An engine oil pressure indicator may show that there Excessive consumption of engine oil can also result if is enough engine oil pressure, but a component is engine oil with the wrong viscosity is used. worn due to a lack of lubrication. In such a case, look at the passage for the engine oil supply to the i02693006 component. -
Page 26: Engine Oil Pressure Is High
Perkins oil filters are manufactured to Perkins specifi- Maintenance Manual, “Fluid Recommendations”. cations. Use of an oil filter that is not recommended by Perkins could result in severe damage to the en- Engine Oil Pressure Gauge gine bearings, crankshaft, etc., as a result of the larg- er waste particles from unfiltered oil entering the Refer to Testing and Adjusting, “Engine Oil Pressure... - Page 27 Perkins oil filters are manufactured to Perkins specifi- cations. Use of an oil filter that is not recommended by Perkins could result in severe damage to the en- gine bearings, crankshaft, etc., as a result of the larg- er waste particles from unfiltered oil entering the engine lubricating system.
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Page 28: Cooling System
M0064276 Cooling System Cooling System When the engine is overloaded, the engine will run in the lug condition. When the engine is running in the lug condition, the engine is operating at a lower engine rpm that reduces the coolant flow. Decreased coolant flow during high load will cause overheating. -
Page 29: Visual Inspection
M0064276 Cooling System 2. Look for leaks in the system. 3. Look for bent core fins or debris between the fins of the radiator (if equipped). Be sure that air flow through the radiator is not restricted. 4. Check for damage to the fan blades (if equipped). 5. - Page 30 M0064276 Cooling System Replace the water temperature regulator if the valve on the water temperature regulator is not open at the specified temperature. Refer to Operation and Maintenance Manual, “Water Temperature Regulator - Replace” for further information.
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Page 31: Basic Engine
M0064276 Basic Engine Basic Engine 3. The top deck of the cylinder block must not be machined. This will affect the depth of the cylinder liner flange and the piston height above the cylinder block. 4. Check the front camshaft bearing for wear. Refer i02857720 to Specifications, “Camshaft Bearings”... - Page 32 M0064276 Basic Engine 3. If the valve is within the service limit but with slight damage to the valve face (1), the valve can be refaced at an angle of 20 degrees (4). Note: If the dimension (5) is less than 1 mm (0.04 inch) after refacing, the valve must be discarded.
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Page 33: Flywheel - Inspect
M0064276 Basic Engine Bore Runout (Radial Eccentricity) 5. When the cylinder head is thoroughly clean, check the cylinder head for cracks. Inspect the area of the Flywheel around the valve seats. Check around the hole for Table 7 the fuel injector. Required Tools i02693029 Tool... -
Page 34: Flywheel Housing - Inspect
M0064276 Basic Engine Maximum flywheel bore runout ......0.13 mm ((0.005 inch)) i02858320 Flywheel Housing - Inspect Table 8 Required Tools Part Description... -
Page 35: Crankshaft Thrust - Measure
M0064276 Basic Engine 7. Turn the flywheel counterclockwise in order to put the dial indicator at position (D). Write the measurement in the chart. 8. Add the lines together in each column. 9. Subtract the smaller number from the larger number in column B and column D. -
Page 36: Vibration Damper
M0064276 Basic Engine A thrust washer is installed on either side of the rear If the fluid leak is engine oil, inspect the crankshaft main bearing. This controls the end play of the seals for leaks. If a leak is observed, replace the crankshaft. -
Page 37: Gear Group (Front)
M0064276 Basic Engine i06515929 Gear Group (Front) Illustration 27 g06005826 Typical example (1) Idler gear (2) Camshaft gear (3) Crankshaft gear (4) Oil Pump Gear 1. Inspect the gears for wear or for damage. If the gears are worn or damaged, use new parts for replacement. -
Page 38: Electrical System
M0064276 Electrical System Electrical System To check for correct output of the alternator, refer to Specifications. Before the start of on-engine testing, the charging system and the battery must be checked according to the following steps. i02693049 1. The battery must be at least 75 percent (1.225 Sp Battery Gr) of the full charge. - Page 39 M0064276 Electrical System Fasten one multimeter lead to the connecting terminal for the small wire to the solenoid and fasten the other lead to the battery negative. Look at the multimeter and activate the starting solenoid. A voltage reading shows that the problem is in the solenoid.
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Page 40: Index
M0064276 Index Section Index Air Inlet and Exhaust System ......5, 18 Gear Group (Front)..........37 General Information (Cooling System) ....28 Pressure Test on the Oil Cooler......28 General Information (Fuel System) (Diesel)...17 General Information (Lubrication System) .....23 Basic Engine..........10, 31 Battery ...............38 Important Safety Information ........2 Increased Engine Oil Temperature - Inspect ..25... - Page 42 M0064276 ©2015 Perkins Engines Company Limited All Rights Reserved December 2015...
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