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Perkins 1104D NH1 Systems Operation Testing And Adjusting

Industrial engine
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RENR7967
September 2006
Systems Operation
Testing and Adjusting
1104D Industrial Engine
NH (Engine)
NJ (Engine)

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Summary of Contents for Perkins 1104D NH1

  • Page 1 RENR7967 September 2006 Systems Operation Testing and Adjusting 1104D Industrial Engine NH (Engine) NJ (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.

  • Page 3: Table Of Contents

    RENR7967 Table of Contents Table of Contents Gear Group - Inspect ..........75 Crankshaft Pulley - Check ........76 Electrical System Systems Operation Section Alternator - Test ............ 78 Battery - Test ............79 General Information V-Belt - Test ............79 Introduction ............

  • Page 4: Introduction

    RENR7967 Systems Operation Section Systems Operation Section General Information i02517251 Introduction The following model views show a typical 1104D engine. Due to individual applications, your engine may appear different from the illustrations. g01245941 Illustration 1 Front left engine view (1) Front lifting eye (6) Oil gauge (11) Crankshaft pulley (2) Water outlet...
  • Page 5 RENR7967 Systems Operation Section g01245940 Illustration 2 Rear right engine view (14) Turbocharger (18) Starting motor (22) Hand fuel priming pump (15) Alternator (19) Oil pan (23) Flywheel housing (16) Exhaust manifold (20) Drain plug (24) Heat shield (17) Wastegate solenoid (21) Primary fuel filter Note: The primary fuel filter is mounted off the Each cylinder has a piston cooling jet that is installed...

  • Page 6: Engine Operation

    RENR7967 Systems Operation Section A piston and a connecting rod are matched to The fuel injection pump (1) that is installed on the each cylinder. The piston height is controlled by the left side of the engine is gear-driven from the timing distance between the center of the big end bearing case.
  • Page 7 RENR7967 Systems Operation Section Cylinder Block and Cylinder Head Cylinder head g01263698 g01263700 Illustration 4 Illustration 5 Typical Cylinder Block Typical cylinder head The cast iron cylinder block for the 1104D engine The engine has a cast iron cylinder head. The inlet has four cylinders which are arranged in-line.
  • Page 8 RENR7967 Systems Operation Section Pistons, Rings and Connecting The connecting rods are machined from forged molybdenum steel. The connecting rods have Rods bearing caps that are fracture split. The bearing caps on fracture split connecting rods are retained with Torx screws. Connecting rods with bearing caps that are fracture split have the following characteristics: •...
  • Page 9 RENR7967 Systems Operation Section • Lower idler gear which turns the gear of the The camshaft and the fuel injection pump rotate at lubricating oil pump. half the engine speed. Lip type seals are used on both the front of the Camshaft crankshaft and the rear of the crankshaft.
  • Page 10 RENR7967 Systems Operation Section Rocker Shaft Assembly g01263708 Illustration 11 The camshaft has two camshaft lobes for each cylinder. The lobes operate either a pair of inlet valves or a pair of exhaust valves. As the camshaft turns, lobes on the camshaft cause the lifter to move the pushrod up and down.

  • Page 11: Air Inlet And Exhaust System

    RENR7967 Systems Operation Section i02526613 Air Inlet and Exhaust System g01205681 Illustration 12 Air inlet and exhaust system (1) Exhaust manifold (5) Aftercooler core (if equipped) (9) Air inlet from the air cleaner (2) Electronic unit injector (6) Exhaust outlet (10) Inlet valve (3) Glow plug (7) Turbine side of turbocharger...
  • Page 12 RENR7967 Systems Operation Section Turbocharger • Power • Exhaust On the compression stroke, the piston moves back up the cylinder and the inlet valves (10) close. The cool compressed air is compressed further. This additional compression generates more heat. Note: If the cold starting system is operating, the glow plugs (3) will also heat the air in the cylinder.
  • Page 13 RENR7967 Systems Operation Section If a wastegate solenoid (15) is installed, then the wastegate is controlled by the engine Electronic Control Module (ECM). The ECM uses inputs from a number of engine sensors to determine the optimum boost pressure. This will achieve the best exhaust emissions and fuel consumption at any given engine operating condition.

  • Page 14: Cooling System

    RENR7967 Systems Operation Section Valve System Components The camshaft has two camshaft lobes for each cylinder. The lobes operate either a pair of inlet valves or a pair of exhaust valves. As the camshaft turns, lobes on the camshaft cause the lifter (4) to move the pushrod (3) up and down.
  • Page 15 RENR7967 Systems Operation Section Coolant Flow g01264578 Illustration 16 Coolant flow (1) Radiator (6) Water temperature regulator (thermostat) (2) Water pump and housing (3) Cylinder block (7) Bypass for the water temperature (4) Engine oil cooler regulator (thermostat) (5) Cylinder head The coolant flows from the bottom of the radiator (1) to the centrifugal water pump (2).

  • Page 16: Lubrication System

    RENR7967 Systems Operation Section i02527751 Lubrication System g01264620 Illustration 17 Flow diagram of the lubrication system Lubricating oil from the oil pan flows through a The inner rotor has five lobes which mesh with the six strainer and a pipe (9) to the suction side of the lobes of the outer rotor.

  • Page 17: Electrical System

    RENR7967 Systems Operation Section Starting Motor From the oil cooler, the oil returns through a passage to the oil filter head. The oil then flows through a bypass valve that permits the lubrication system to function if the oil filter becomes blocked. Under normal conditions, the oil then flows to the oil filter (8).

  • Page 18: Cleanliness Of Fuel System Components

    Contact your nearest Perkins internally. The fan forces air through the holes in the dealer or your nearest approved Perkins distributor in front of the alternator. The air exits through the holes order to obtain the correct sealing plugs.
  • Page 19 RENR7967 Systems Operation Section Refueling In order to refuel the diesel fuel tank, the refueling pump and the fuel tank cap assembly must be clean and free from dirt and debris. Refueling should take place only when the ambient conditions are free from dust, wind and rain.

  • Page 20: Fuel Injection

    RENR7967 Systems Operation Section i02528870 Fuel Injection Introduction (Fuel Injection) g01236714 Illustration 20 Diagram of the basic fuel system (typical example) (1) Electronic Unit Injector (6) Primary Speed/Timing Sensor (11) Coolant Temperature Sensor (2) Solenoid for the fuel injection pump (7) Intake Manifold Pressure Sensor (12) Diagnostic Connector (3) Wastegate Valve (if equipped)
  • Page 21 RENR7967 Systems Operation Section Low Pressure Fuel System g01265309 Illustration 21 Low pressure fuel system (typical example) (1) Primary fuel filter (7) Fuel Injection Pump (D) Return from the Electronic Unit Injectors (2) Water separator (A) Outlet for high pressure fuel to the high (E) Fuel in from the fuel tank (3) Fuel transfer pump pressure fuel manifold...
  • Page 22 RENR7967 Systems Operation Section Fuel is drawn from the fuel tank (E) through a 20 micron Primary fuel filter (1) and the Water separator (2) to the Transfer pump (3). The transfer pump increases the fuel pressure to 25 kPa (3.6260 psi). The fuel is pumped through the fuel cooler (optional) (4) to the ECM (5).
  • Page 23 RENR7967 Systems Operation Section High Pressure Fuel System g01288650 Illustration 22 High pressure fuel system (typical example) (1) Electronic Unit Injector (4) Fuel Pressure Relief Valve (7) Fuel Injection Pump (2) High Pressure Fuel Manifold (5) Fuel Transfer Pump (3) Fuel Pressure Sensor (6) Solenoid for the Fuel Injection Pump...
  • Page 24 RENR7967 Systems Operation Section Fuel Priming Pump The fuel injection pump (7) feeds fuel to the high pressure fuel manifold (2). The fuel is at a pressure of 70 MPa (10152.7 psi) to 130 MPa (18855 psi). A pressure sensor (3) in the high pressure fuel manifold (2) monitors the fuel pressure in the high pressure fuel manifold (2).
  • Page 25 RENR7967 Systems Operation Section Secondary Fuel Filter Fuel Injection Pump g01249050 g01266023 Illustration 24 Illustration 25 Typical example Typical example The fuel injection pump has the following The secondary fuel filter (1) is located after the priming pump. The filter is always before the fuel operations: injection pump.
  • Page 26 RENR7967 Systems Operation Section The fuel transfer pump provides a relatively low fuel pressure to the fuel injection pump. The fuel transfer pump has a regulating valve in order to control the low pressure. The fuel transfer pump circulates fuel through the primary fuel filter and the secondary fuel filter.

  • Page 27: Electronic Control System

    RENR7967 Systems Operation Section Fuel Injectors Fuel Manifold g01201611 Illustration 28 The fuel injectors are not serviceable. When the ECM sends a signal to the injector solenoid, a valve inside the injector opens. The valve allows the high pressure fuel from the fuel manifold g01266024 Illustration 29 to enter the injector.
  • Page 28 RENR7967 Systems Operation Section g01248060 Illustration 30 A typical example of a 1104D electronic control system (1) Fuel Pressure Sensor (5) Oil Pressure Sensor (9) Intake Manifold Pressure Sensor (2) Intake Manifold Air Temperature Sensor (6) Oil Pressure Sensor (alternative location) (10) Intake Manifold Pressure Sensor (3) Electronic Control Module (ECM) (7) Secondary Speed/Timing Sensor...
  • Page 29 RENR7967 Systems Operation Section g01248066 Illustration 31...
  • Page 30 RENR7967 Systems Operation Section Table 1 Connector Function Machine Harness to ECM Connector (64 Pin Connector) Engine Harness to ECM Connector (64 Pin Connector) P532 Fuel Injection Pump Solenoid Connector (2 Pin Connector) P402 Secondary Speed/Timing Sensor (2 Pin Connector) P401 Primary Speed/Timing Sensor (2 Pin Connector) P201...
  • Page 31 RENR7967 Systems Operation Section g01236714 Illustration 32 The electronic control system has the following components: • • Pressure Sensors • Temperature Sensors • Crankshaft Position Sensor • Secondary Position Sensor • Solenoid for the Fuel Injection Pump • Wastegate Solenoid •...
  • Page 32 RENR7967 Systems Operation Section The personality module contains the software with all the fuel setting information. The information determines the engine performance. Flash programming is the method of programming or updating the personality module. Refer to the following Troubleshooting, RENR2417, “Flashing Programming ”...
  • Page 33 Factory passwords are with an electronic service tool. calculated on a computer system that is available only to Perkins distributors. Since factory passwords Fuel Injection contain alphabetic characters, only an electronic service tool may change System Configuration The personality module software inside the ECM Parameters.
  • Page 34 RENR7967 Systems Operation Section The primary engine position is a passive sensor. The timing wheel (1) is located on the crankshaft. The speed/timing sensor receives a signal from the teeth on timing wheel. The extra space on the timing wheel gives one revolution per space.
  • Page 35 RENR7967 Systems Operation Section When the engine is cranking, the ECM uses the signal from the speed/timing sensor in the fuel injection pump. When the engine is running the ECM uses the signal from the speed/timing sensor on the crankshaft. This speed/timing sensor is the primary source of the engine position.

  • Page 36: Power Sources

    RENR7967 Systems Operation Section Temperature Sensors g01249915 Illustration 38 Schematic for the temperature sensors The air inlet temperature sensor and the coolant temperature sensor are passive sensors. Each sensor provides a temperature input to the ECM. The ECM controls following operations: •...
  • Page 37 RENR7967 Systems Operation Section ECM Power Supply g01245123 Illustration 39 Schematic for ECM The power supply to the ECM and the system is drawn from the 24 volt or the 12 volt battery. The power supply for the ECM has the following components: •...
  • Page 38 RENR7967 Systems Operation Section Power Supply for the Pressure Sensors g01266903 Illustration 40 Schematic for pressure sensors The ECM supplies 5.0 ± 0.2 DC volts through the ECM connector to each sensor. The power supply is protected against short circuits. A short in a sensor or a wiring harness will not cause damage to the ECM.

  • Page 39: Glossary Of Electronic Control Terms

    RENR7967 Systems Operation Section Power supply for the Glow plugs g01245657 Illustration 41 Schematic for the glow plugs Adaptive Trim – This is a software process that is performed in the ECM that optimizes engine performance by automatically compensating for i02533811 degradation of injector components.
  • Page 40 DT, DT Connector, or Deutsch DT – This is a type temperature for all normal operating conditions and of connector that is used on Perkins engines. The connectors are manufactured by Deutsch. for engine monitoring.
  • Page 41 RENR7967 Systems Operation Section 14 and 15 – These locations are reserved for a Engine Speed/Timing Sensor – An engine speed/timing sensor is a Hall effect sensor. The future assignment. ECM interprets this signal as the crankshaft position and the engine speed. Two sensors are used to Flash Programming –...
  • Page 42 RENR7967 Systems Operation Section Integrated Electronic Controls – The engine is Glow Plug – The glow plug is an optional starting aid designed with the electronic controls as a necessary for cold conditions. One glow plug is installed in each combustion chamber in order to improve the ability of part of the system.
  • Page 43 RENR7967 Systems Operation Section Programmable Software – The software is Relay – A relay is an electromechanical switch. A programmed into the ECM. The software contains flow of electricity in one circuit is used to control the all the instructions (software) for the ECM and the flow of electricity in another circuit.
  • Page 44 RENR7967 Systems Operation Section Throttle Position Sensor – The throttle position sensor is an electronic sensor that is usually connected to an accelerator pedal or a hand lever. This sensor sends a signal to the ECM that is used to calculate desired engine speed. Throttle Switch –...

  • Page 45: Testing And Adjusting Section

    RENR7967 Testing and Adjusting Section Testing and Adjusting i02405571 Air in Fuel - Test Section Fuel System NOTICE Ensure that all adjustments and repairs that are carried out to the fuel system are performed by i02563346 authorised personnel that have the correct train- Fuel System - Inspect ing.

  • Page 46: Finding Top Center Position For No. 1 Piston

    RENR7967 Testing and Adjusting Section 4. Pressurize the fuel tank to 35 kPa (5 psi). Do not use more than 55 kPa (8 psi) in order to avoid damage to the fuel tank. Check for leaks in the fuel lines between the fuel tank and the fuel transfer pump.

  • Page 47: Fuel Injection Timing - Check

    RENR7967 Testing and Adjusting Section 1. Remove the valve mechanism cover, the glow plugs, and the cover for the front housing. Refer to NOTICE Disassembly and Assembly Manual, “Front Cover Ensure that all adjustments and repairs that are - Remove and Install”. carried out to the fuel system are performed by authorised personnel that have the correct train- Note: The crankshaft timing pin can be inserted with...

  • Page 48: Fuel Quality - Test

    RENR7967 Testing and Adjusting Section a. Position Tooling (A) onto the shaft (8) of the i02563386 fuel injection pump. Align the lever of Tooling Fuel Quality - Test (A) with the key slot (7). Engage the lever into the key slot. Note: Refer to Systems Operation, “Cleanliness of Fuel System Components”...

  • Page 49: Fuel System - Prime

    RENR7967 Testing and Adjusting Section i02543918 Fuel System - Prime Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fu- el spray may cause a fire hazard. Failure to fol- low these inspection, maintenance and service in- structions may cause personal injury or death.

  • Page 50: Gear Group (Front) - Time

    RENR7967 Testing and Adjusting Section Electric Fuel Priming Pump i02403273 Gear Group (Front) - Time 1. Ensure that the fuel system is in working order. Restore the fuel supply. NOTICE The electric fuel priming pump will operate for 90 sec- onds.

  • Page 51: Air Inlet And Exhaust System

    RENR7967 Testing and Adjusting Section Air Inlet and Exhaust System i02553540 Air Inlet and Exhaust System - Inspect A general visual inspection should be made to the air inlet and exhaust system. Make sure that there are no signs of leaks in the system. There will be a reduction in the performance of the engine if there is a restriction in the air inlet system or the exhaust system.

  • Page 52: Turbocharger - Inspect

    RENR7967 Testing and Adjusting Section 5. Remove the breather tube (3) from the breather (1) and check for obstructions. If the breather tube is obstructed, use low pressure air to remove the obstruction. If a filtered breather assembly is installed, check that the filter element is free from oil.
  • Page 53 RENR7967 Testing and Adjusting Section The condition of the turbocharger will have definite a. Check the oil level in the crankcase. If the oil effects on engine performance. Use the following level is too high, adjust the oil level. inspections and procedures to determine the condition of the turbocharger.
  • Page 54 RENR7967 Testing and Adjusting Section Check the Wastegate for Proper b. If crankcase pressure is high, or if the oil drain is restricted, pressure in the center housing Operation may be greater than the pressure of turbine housing (1). Oil flow may be forced in the wrong Table 4 direction and the oil may not drain.

  • Page 55: Compression - Test

    RENR7967 Testing and Adjusting Section 3. Slowly apply air pressure to the wastegate so that • All glow plugs are removed. the actuator rod (4) moves 1.0 mm (0.039 inch). The air pressure should be within 107 to 117 kPa •...

  • Page 56: Engine Valve Lash - Inspect/Adjust

    RENR7967 Testing and Adjusting Section Too much valve lash can cause broken valve stems, i02556539 springs, and spring retainers. This will produce Engine Valve Lash - emissions in excess of the correct specification. Inspect/Adjust Too much valve lash can be an indication of the following problems: •...
  • Page 57 RENR7967 Testing and Adjusting Section g01193809 Illustration 54 Setting the valve lash (A) Angled feeler gauge (1) Adjustment screw (2) Locking screw Accidental engine starting can cause injury or death to personnel. To prevent accidental engine starting, turn the ig- nition switch to the OFF position and place a do not operate tag at the ignition switch location.

  • Page 58: Valve Depth - Inspect

    RENR7967 Testing and Adjusting Section 1. Remove the valve mechanism cover. Refer to 3. Rotate the crankshaft by 180 degrees in the Disassembly and Assembly , “Valve Mechanism direction of engine rotation, until the piston of Cover - Remove and Install” for the removal No.

  • Page 59: Valve Guide - Inspect

    RENR7967 Testing and Adjusting Section 2. Use the Tooling (A) to check the depths of the inlet valves and the exhaust valves below the face of the cylinder head. Use Tooling (B) to zero Tooling (A). 3. Measure the depth of the inlet valve and the exhaust valve below the cylinder head face.
  • Page 60 RENR7967 Testing and Adjusting Section The original valve guides are bored into the cylinder head. When new valve guides(1) are installed, new valves and new valve seat inserts must be installed. The cylinder head must be rebored in order to install the new valve guide.

  • Page 61: Lubrication System

    RENR7967 Testing and Adjusting Section Lubrication System Perform the following procedures in order to inspect the oil pump for clearances and torques. i02557748 Refer to the Specifications Module, “Engine Oil Engine Oil Pressure - Test Pump”. 1. Remove the oil pump from the engine. Refer to the Disassembly and Assembly, “Engine Oil Pump - Remove”.

  • Page 62: Excessive Bearing Wear - Inspect

    RENR7967 Testing and Adjusting Section i01126690 Excessive Bearing Wear - Inspect When some components of the engine show bearing wear in a short time, the cause can be a restriction in an oil passage. An engine oil pressure indicator may show that there is enough oil pressure, but a component is worn due to a lack of lubrication.

  • Page 63: Increased Engine Oil Temperature - Inspect

    RENR7967 Testing and Adjusting Section • Leaks past the seal rings in the turbocharger shaft • Overfilling of the crankcase • Wrong dipstick or guide tube • Sustained operation at light loads Excessive consumption of engine oil can also result if engine oil with the wrong viscosity is used. Engine oil with a thin viscosity can be caused by fuel leakage into the crankcase or by increased engine temperature.

  • Page 64: Cooling System

    RENR7967 Testing and Adjusting Section b. Clean the radiator and other components with hot water or steam at low pressure. Detergent Cooling System in the water may also be used. Compressed air may be used to remove materials from the cooling system. Identify the cause of the restriction before you choose the method for i02419296 cleaning.

  • Page 65: Cooling System - Test

    RENR7967 Testing and Adjusting Section 8. Look for large amounts of dirt in the radiator core. The level of the coolant should not be more than Look for large amounts of dirt on the engine. 13 mm (0.5 inch) from the bottom of the filler pipe. If the cooling system is equipped with a sight glass, 9.

  • Page 66: Engine Oil Cooler - Inspect

    RENR7967 Testing and Adjusting Section • • Seal You do NOT observe any leakage after five minutes. • Surface for seal • The dial indicator remains constant beyond five Remove any deposits that are found on these minutes. items, and remove any material that is found on these items.

  • Page 67: Water Temperature Regulator - Test

    RENR7967 Testing and Adjusting Section Mounted Filter Dry the oil cooler (1) with low pressure air. Flush the inside of the oil cooler (1) with clean lubricating oil. 5. Refer to Disassembly and Assembly , “Engine Oil Cooler - Install” for installation of the engine oil cooler.

  • Page 68: Water Pump - Inspect

    RENR7967 Testing and Adjusting Section 5. After ten minutes, remove the water temperature regulator. Immediately measure the opening of the water temperature regulator. Refer to Specifications, “Water Temperature Regulator” for the minimum opening distance of the water temperature regulator at the fully open temperature.

  • Page 69: Basic Engine

    RENR7967 Testing and Adjusting Section Basic Engine Inspect the Piston Ring End Gap i01889476 Piston Ring Groove - Inspect Inspect the Piston and the Piston Rings 1. Check the piston for wear and other damage. 2. Check that the piston rings are free to move in the grooves and that the rings are not broken.
  • Page 70 RENR7967 Testing and Adjusting Section If the grade of length must be changed, one of the If the piston pin bearing requires replacement but the following actions must be taken: original connecting rod is not replaced, the following procedures must be performed: •...
  • Page 71 RENR7967 Testing and Adjusting Section Measure “CRL”. Compare the “CRL” that is given Table 9 in Table 9. The grade of length of the connecting Length Grades for Connecting Rods rod is determined by the “CRL”. Refer to Table 9 Length Of The for the correct grade of length.

  • Page 72: Cylinder Block - Inspect

    RENR7967 Testing and Adjusting Section i02399735 Cylinder Block - Inspect 1. Clean all of the coolant passages and the oil passages. 2. Check the cylinder block for cracks and damage. 3. The top deck of the cylinder block must not be machined.

  • Page 73: Flywheel - Inspect

    RENR7967 Testing and Adjusting Section If the height of the piston above the cylinder block 2. Rotate the crankshaft until the piston is at the is not within the tolerance that is given in the approximate top center. Specifications Module, “Piston and Rings”, the bearing for the piston pin must be checked.

  • Page 74: Flywheel Housing - Inspect

    RENR7967 Testing and Adjusting Section Concentricity of the Flywheel 4. Calculate the difference between the lowest measurement and the highest measurement of the Housing four locations. This difference must not be greater than 0.03 mm (0.001 inch) for every 25 mm Note: This check must be made with the flywheel (1.0 inch) of the radius of the flywheel.

  • Page 75: Gear Group - Inspect

    RENR7967 Testing and Adjusting Section i02543954 Gear Group - Inspect g01273087 Illustration 74 (1) Camshaft gear g01199467 Illustration 73 (2) Idler gear (3) Fuel injection pump gear Typical example Note: If one or more of the gears need to be removed 1.

  • Page 76: Crankshaft Pulley - Check

    RENR7967 Testing and Adjusting Section g01273091 Illustration 75 5. Measure the end play on idler gear (2). Refer to Disassembly and Assembly, “Idler Gear - Install” for the correct procedure. Refer to Specifications, “Gear Group (Front)” for the end play measurement. g01273828 Illustration 77 Typical example of a crankshaft pulley with poly v-belt...
  • Page 77 RENR7967 Testing and Adjusting Section 2. Mount the dial indicator on the front cover. Use the dial indicator to measure the outer face of the crankshaft pulley. Set the dial indicator to read 0.00 mm (0.00 inch). 3. Rotate the crankshaft at intervals of 45 degrees and read the dial indicator.

  • Page 78: Electrical System

    RENR7967 Testing and Adjusting Section Electrical System i02544065 Alternator - Test 1. Put the positive lead “+” of a suitable multimeter on the “B+” terminal of the alternator. Put the negative “-” lead on the ground terminal or on the frame of the alternator.

  • Page 79: Battery - Test

    RENR7967 Testing and Adjusting Section 5. After approximately ten minutes of operating the i02545695 engine at full throttle, the output voltage of the V-Belt - Test alternator should be 14.0 ± 0.5 volts for a 12 volt system and 28.0 ± 1 volts for a 24 volt system. Refer to the Fault Conditions And Possible Table 15 Causes in Table 14.

  • Page 80: Charging System - Test

    RENR7967 Testing and Adjusting Section Table 16 Belt Tension Chart Gauge Reading Size of Belt Width of Belt Initial Belt Tension Used Belt Tension 13.89 mm (0.547 Inch) 535 N (120 lb) 355 N (80 lb) Measure the tension of the belt that is farthest from the engine. Initial Belt Tension refers to a new belt.

  • Page 81: Electric Starting System - Test

    RENR7967 Testing and Adjusting Section See Special Instruction, REHS0354, “Charging Table 17 System Troubleshooting” for the correct procedures Typical Voltage Of Electrical System During Cranking to use to test the charging system. This publication At Various Ambient Temperatures also contains the specifications to use when you test the charging system.
  • Page 82 RENR7967 Testing and Adjusting Section The current and the voltages that are specified in the Specifications Module are measured NOTICE at a temperature of 27°C (80°F). When the If equipped with electric start, do not crank the engine temperature is below 27°C (80°F), the voltage will for more than 30 seconds.

  • Page 83: Glow Plugs - Test

    RENR7967 Testing and Adjusting Section Remove the starting motor for repair or Table 19 replacement. 12 Volt System b. The starting motor does not crank. Time (sec) 16.6 Initial Check for the blocked engagement of the pinion gear and flywheel ring gear. 11.1 Note: Blocked engagement and open solenoid contacts will give the same electrical symptoms.
  • Page 84 RENR7967 Testing and Adjusting Section See Special Instruction, REHS0354, “Charging Table 17 System Troubleshooting” for the correct procedures Typical Voltage Of Electrical System During Cranking to use to test the charging system. This publication At Various Ambient Temperatures also contains the specifications to use when you test the charging system.

  • Page 85: Index Section

    RENR7967 Index Section Gear Group (Front) - Time........50 General Information..........4 Glossary of Electronic Control Terms ....39 Glow Plugs - Test........... 83 Checking The Operation of The Glow Plug ..83 Continuity Check of the Glow Plugs....83 Important Safety Information ........

  • Page 86: Index

    RENR7967 Index Section...
  • Page 87 RENR7967 Index Section...
  • Page 88 Copyright © 2006 Perkins Engines Company Limited All Rights Reserved Printed in U.K.

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1104d nj1

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