Because of the many variables peculiar to individual jobs including material characteristics, operator efficiency, underfoot conditions, altitude, etc.
Maintenance Manual for Engine Vision Display. Marine Analog Power Display Hydraulic Shovel. Standard Bucket Capacity — Backhoe.
Heaped Operating Specifications. Bucket Payload. EPA Tier 4. EPA Tier 2. Blade Capacities. Heavy duty starting motors. Right and center implement pump relief pressures. Operating Specifications —.
Operating Weight — 99 kg , lb. May 24, Low BSFC. All Rights Reserved. Designed by Templatic. Home Copyright Privacy Contact. Caterpillar C32 Operation Manual.
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Repair any leaks. Obtain a fuel analysis. When some components of the engine show bearing wear in a short time, the cause can be a restriction in a passage for engine oil. In such a case, look at the passage for the engine oil supply to the component. If the symptom is consistent and the symptom can be repeated, continue with this procedure.
Note: If the symptom only occurs under certain operating conditions high idle, full load, engine operating temperature, etc , test the engine under those conditions. Troubleshooting the symptom under other conditions can give misleading results. Troubleshoot any active codes before continuing with this procedure.
Monitor throttle signal on Cat ET. Verify that the throttle signal is stable from the low idle position to the high idle position. Use Cat ET to determine if there are any active diagnostic codes for the unit injectors.
Use Cat ET to verify that the engine has exited cold mode. Cold mode operation may cause the engine to run rough and the engine power may be limited. Inspect the engine oil cooler core for leaks. If a leak is found, replace the oil cooler core. Refer to the Operation and Maintenance Manual for more information. Check the fuel pressure. Do not crank the engine continuously for more than 30 seconds.
Allow the starting motor to cool for two minutes before cranking the engine again. If the. Check for restrictions in the air inlet system.
Check the parameter for the low engine idle if applicable. Check the vibration damper for damage. Install a new vibration damper, if necessary. Replace any damaged bolts. Inspect the mounts and the brackets while you run the engine through the speed range. Tighten all of the mounting bolts. Install new components, if necessary. Verify that the emergency stop switch is in the RUN out position. If the switch is depressed, the engine will not be allowed to crank.
Inspect the battery posts, and battery cables for loose connections and for corrosion. If the battery cables are corroded, remove the battery cables and clean the battery cables. Tighten any loose connections.
Charge the batteries. Load test the batteries. The ECM controls the crank cycle for the engine. Ensure that the cranking circuit is operating correctly. Perform the following Steps:. Check all of the circuit breakers for the application. If a breaker is tripped, investigate the cause. Ensure that the control input voltage is reaching the SMMS. Check the input voltage for the secondary circuit of the SMMS. Ensure free movement of the driveline. Remove any engine accessories that may lock up the engine and inspect any engine accessories that may lock up the engine.
Note: Drain the fuel from the cylinder head. Disassemble the engine. Refer to Disassembly and Assembly. Inspect the internal components for the following conditions:. Check the output voltage for the secondary circuit of the SMMS. The correct voltages during engine cranking will be equal to the battery voltage. Check the wiring to the starting motor solenoid. Ensure that the turbocharger is in good repair. Check the exhaust system for restrictions. Repair any leaks that were found.
Remove any restrictions that were found. Replace any damaged components that were found. Verify that the crankshaft and the camshaft drive gears are set with the proper orientation. The correct reading for the atmospheric pressure is between 50 kPa 7. Otherwise, proceed to the next Step. Verify that there are no active diagnostic codes for the intake manifold pressure sensor.
Refer to Operation and Maintenance Manual for information on improving the characteristics of the fuel during cold weather operation. Check the valve adjustment. Check the engine compartment for oil leaks.
Check the engine oil level. Too much oil in the engine crankcase can cause the engine to consume oil. Remove excessive engine oil from the crankcase. Check for turbocharger shaft seal leakage. Remove the air inlet piping and the exhaust outlet piping from the turbocharger. Check the compressor wheel and the turbine for evidence of an oil leak. If necessary, repair the turbocharger or replace the turbocharger. Internal engine wear can cause excessive oil leakage into the combustion area of the cylinders.
Excessive wear on the following components may cause oil consumption:. Check for excessive crankcase blowby at the engine crankcase breather. Note: Engine operation may also be affected by environmental conditions such as wind and snow. Refer to the diagnostic functional test.
Remove the valve mechanism covers. Check the lubrication in the valve compartment. The passages for the engine oil must be clean. Adjust the engine valve lash. Inspect the following components of the valve train:. Check the components for the following conditions: abnormal wear, excessive wear, straightness, and cleanliness. Replace parts, if necessary. Note: Some white smoke may be present during cold start-up conditions when the engine is operating normally. If the white smoke persists, there may be a problem.
Check for proper operation of the jacket water heater. Repair the jacket water heater or replace the jacket water heater. Ensure that the ether canister is not empty or low. Replace the ether canister if the ether canister is empty or low. Ensure that the temperature readings are reasonable for the conditions that are present. Note: If you replace the camshaft, you must also replace the roller followers rocker arm.
Verify that the timing of the crankshaft and camshaft drive gears are set with the proper orientation. Refer to Disassembly and Assembly for information that is related to the correct gear installation. Cut out each individual cylinder for 30 to 60 seconds. Verify that the smoke decreases.
Remove the valve cover. Remove the fuel supply. Disconnect the fuel return line from the cylinder head. Cap the fuel return connector and apply kPa psi maximum air pressure to the fuel supply connector. Check for fuel leakage around each fuel injector. If leakage is present, remove the leaking fuel injector. Install a new O-ring seal onto the injector. Install the injector. Connect the fuel return line. Install the valve cover. Verify that the problem is resolved.
Inspect the fuel system components. Check the fuel quality. Low cetane fuel can create white smoke. If necessary, replace the fuel with a higher cetane fuel. Check the engine for the following problems: Excessive valve wear, piston wear, ring wear, liner wear, and reduced compression pressure. Check the torque for the unit injector clamp retaining bolts. Ensure that the unit injectors are properly installed into the cylinder head.
Inspect the O-ring seals and the unit injector sleeves for damage. Replace any seals or sleeves that show evidence of leakage. Look for signs of damage to the unit injectors. If necessary, replace the unit injectors that have damaged tips. Inspect the cooling system for contamination of fuel.
Inspect the crankcase for dilution of the engine oil. This may be a sign of a cracked cylinder head or of a leaking cylinder head gasket. Ensure that the weep hole for the fuel transfer pump is not plugged.
Inspect the front of the pump for signs of leakage. If necessary, repair the fuel transfer pump or replace the fuel transfer pump. Note: Use this procedure only if the engine shuts down completely during operation. Troubleshoot any codes that are present prior to continuing with this procedure.
Refer to. Inspect the battery wires from the ECM to the battery compartment. Check the unit injector connectors and associated wiring for damage, or for intermittent problems. Inspect the wires and connectors to all circuit protection for the engine. Check the power and ground connections to. Check any engine shutdown switches and associated wiring.
Check the state of each of the circuit breakers. Reset the circuit breakers if the circuit breakers are tripped. Prior to returning the engine to service, determine the condition that caused the circuit breaker to trip. Make the necessary repairs. Visually check the fuel level in the fuel tank. If necessary, add fuel to the fuel tank. If the engine has been run out of fuel, it will be necessary to prime the fuel system.
Check the fuel tank for debris or foreign objects which may block the fuel supply. Note: Check the fuel system for air. Check fuel quality. If the fuel pressure is still low, check the operation of the fuel pressure regulating valve. Also, check for the proper operation of the fuel transfer pump. Ensure that the ECM is receiving the correct voltage. Inspect the circuit between the ECM and the batteries. Refer to the Electrical System Schematic.
Inspect the wires, the connectors, and the components in the circuit. Note: Use this procedure only if the engine does not shut down completely.
Note: If the problem only occurs under certain conditions, test the engine under those conditions. Examples of certain conditions are high engine speed, full load and engine operating temperature.
Troubleshooting the symptoms under other conditions can give misleading results. Prime the fuel system if any of the following components have been serviced recently:. Check the fuel pressure while the engine is being cranked. Do not operate engine with low oil pressure. Engine damage will result. If measured engine oil pressure is low, discontinue engine operation until the problem is corrected.
Inspect the engine oil level. If engine oil is low add engine oil. Check the service records of the engine for information that is related to the last oil change. Clean the bypass valve and the housing.
If necessary, install new parts. Check for blockage of the inlet screen for the engine oil pump. Check the components of the engine oil pump for excessive wear. If necessary, repair the oil pump or replace the oil pump.
Check for presence of fuel in lubricating oil. Excessive wear to discrete components may be an indication of a blocked oil passage.
Use an oil pressure gauge to check the oil pressure at the main oil gallery. This will help determine if the excessive wear is from low system pressure or from passages that are blocked.
Examples of certain conditions are high engine speed, full load, and engine operating temperature. Some engine monitoring parameters that are capable of triggering an engine derate do not produce an event code. Use Cat ET to check for active codes and for logged codes. Use Cat ET to check that the pressures and the temperatures are.
Also check that the values are reasonable for the conditions that are present. Cold mode operation may cause the engine to run rough and engine power may be limited. Observe the coolant temperature on the Cat ET status screen.
Verify that the reading is valid. Also, check for the correct installation of the valve cover connectors for the injector solenoids. Otherwise, proceed with the next Step. When the engine is not running, the correct value for the intake manifold pressure sensor is 0 kPa 0 psi. Refer to the Operation and Maintenance Manual for additional information.
If the ECM has been replaced, compare the values that are on the engine information plate to following parameters from Cat ET:.
If the engine has been run out of fuel, it will be necessary to purge the air from the fuel system. Refer to the Operation and Maintenance Manual for details. Isolate the source of the noise. Remove the suspect engine accessories.
Inspect the suspect engine accessories. Repair the. Remove the valve cover from the suspect cylinder s. Check the following items for damage: camshaft, valve rotocoil, valve springs, roller followers rocker arm , rocker shaft, bridges, and injectors. Check for valves that do not move freely. Remove the cylinder head and inspect the valves. Replace any damaged parts.
If damage has occurred, ensure that the following components are free of contamination: cylinder liner, piston, and exhaust system. Inspect the connecting rod bearings and the bearing surfaces journals on the crankshaft. Check the piston pin for excessive wear. Check main journals of the crankshaft and the main journal bearings for excessive wear.
Refer to Operation and Maintenance Manual for information on the characteristics of the fuel. Check the engine valve lash settings. Check damage to valve train components which may cause excessive valve lash. Repair any problems that are found. Inspect the condition of the camshafts. Cold mode operation may slow throttle response. Observe the check engine lamp. Use this procedure in order to troubleshoot a problem with the valve rotators or spring locks.
A valve rotator that is cracked or a valve rotator that is broken is an indication of an engine overspeed. Determine the cause of the engine overspeed. Repair the condition. Inspect the following components for damage:. Note: Ensure that the valve has not contacted the piston. If the valve has contacted the piston, check the exhaust system for debris. Diagnostic codes alert the operator that a problem in the electronic system has been detected.
Diagnostic codes also indicate the nature of the problem to the service technician. The Caterpillar Electronic Technician ET is a software program that is designed to run on a personal computer. Diagnostic codes may be viewed on a personal computer that has Cat ET software. The CID indicates the component that generated the code.
This is used on the diagnostics for the CAN data link. There is a troubleshooting procedure for every diagnostic code. Some J devices may display the code. Do not confuse diagnostic codes with event codes. Event codes alert the operator that an abnormal operating condition such as low oil pressure or high coolant temperature has been detected.
Illustration 7 indicates the signal range for a typical analog sensor. An active diagnostic code represents a problem with the electronic control system. Correct the problem as soon as possible.
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