F85634-2 CONNECTING ROD SCREW Force
H0202B80L, H0202B81M, H0202H79K, H0202H82N, H0252B83G, H0257F88A, H0257F88B, H0306B80C, H0307H81D, H0352F90B, H0352F90C, H0352H79L, H0353E91A, H0353E91B, H0353H78K, H0353H80M, H0353H81N, H0353H82P, H0355D89A, H0356F89B, H0357C86A, H0357C87A, H0357C88
CONNECTING
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Compatible models:
H0202B80L
H0202B81M
H0202H79K
H0202H82N
H0252B83G
H0257F88A
H0257F88B
H0306B80C
H0307H81D
H0352F90B
H0352F90C
H0352H79L
H0353E91A
H0353E91B
H0353H78K
H0353H80M
H0353H81N
H0353H82P
H0355D89A
H0356F89B
H0357C86A
H0357C87A
H0357C88B
H0357F88A
H0357F89C
H0357G90A
H0357H83N
H0456B80L
H0457H82N
H0457H83P
H0503B83A
H0503H84B
H0504H88C
H0504H88D
H0504P89B
H0505C89B
H0507A89C
H0507A89D
H0507A90A
H0507A90B
H0507A90C
H0507A90D
H0507A91A
H0507A91C
H0507A92A
H0507B85A
H0507C86A
H0507C87A
H0507C87C
H0507C88B
H0507E91B
H0507F87B
H0507F88A
H0507H81A
H0507H82B
H0507Z89B
H0700H79A
H0709B79A
H0750H79A
H0756H80F
H0756H81G
H0756H82H
H0757B79E
H0758H80B
H0758H82E
H0759H79A
H0850H79A
H0850H80A
H0850H81C
H0851H79A
H0851X88A
H0853F88B
H0853F89C
H0853F89E
H0853F89F
H0853F89G
H0855H79A
H0856A89A
H0856A89H
H0856B80H
H0856C87A
H0856C87B
H0856F84A
H0856F85A
H0856F86A
H0856H82K
H0856L89D
H0856Y89B
H0857H79G
H0858B80C
H0858B82E
H0858C84H
H0859B79B
H0859H78A
H085LD89A
H085LD89B
H085LD89C
H0903E91D
H0903F90B
H0903F90C
H0903F91A
H0903F91C
H0906A90A
H0906R83D
H090LD90A
H090LD90B
H090LD90C
H090LD91D
H1000H79A
H1004H79A
H1006B80B
H1006B81C
H1007H79A
H1008H80A
H1008H83C
H1058H82G
H1058V83H
H1150H79A
H1151H79A
H1154B79A
H1155H79A
H1156H80C
H1156H81D
H1157B79B
H1158B82E
H1158H80D
H1158H84G
H1159H78B
H1159H79C
H120LD90A
H120LD90B
H120LD90C
H120LD91B
H120LD91D
H120LD92B
H1251A88A
H1251A88B
H1251A88C
H1251A89A
H1251A89B
H1251A89C
H1251A89D
H1251A89E
H1251F84A
H1251F86A
H1251F87A
H1251F87B
H1251X85A
H1258H81A
H125LD89A
H125LD89B
H1400H79A
H1401H79A
H1405H79A
H1406H80C
H1406H81D
H1407B79B
H1408B80C
H1408H82D
H1408H83E
H1409H78A
H1409H79B
Force
Force entire parts catalog list:
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT & PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT & PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
- CRANKSHAFT AND PISTON GROUP » F85634-2
Information:
Table 1
Diagnostic Codes Table    
Code and Description     Conditions which Generate this Code     System Response    
291-5 Engine Cooling Fan Solenoid current below normal     The Electronic Control Module (ECM) detects an open circuit and/or a short to the +Battery in the circuit for the engine fan control solenoid.     The ECM disables the fan control. The code is logged.    
291-6 Engine Cooling Fan Solenoid current above normal     The ECM detects a short circuit to ground in the circuit for the engine fan control solenoid.    The ECM controls the speed of the engine cooling fan in order to provide the following benefits:
Increased productivity
Reduced noise
Improved fuel economy
Reduced overcooling of the engineThe ECM monitors engine coolant temperature and intake manifold air temperature in order to determine the correct speed for the engine cooling fan.The ECM controls the speed of the fan by controlling the current to the engine fan control solenoid. The engine fan control solenoid limits the amount of pressure to the fan pump by allowing oil to bypass the fan pump. The fan pump drives the fan. When the ECM outputs minimum current to the engine fan control solenoid less oil is bypassed and the fan pump will drive the fan at a higher rpm. When the ECM outputs maximum current to the engine fan control solenoid more oil is bypassed and the fan pump will drive the fan at a lower rpm.If the ECM detects a system fault, the ECM disables the fan control.An override is available with Caterpillar Electronic Technician (ET). This allows the fan to be manually changed from the minimum to the maximum possible rpm.
Illustration 1 g01393057
Schematic for the engine fan control solenoidTest Step 1. Inspect the Electrical Connectors and the Wiring
Remove electrical power from the ECM.
Illustration 2 g01139425
ECM (1) J1/P1 connectors (2) J2/P2 connectors
Thoroughly inspect connectors (1) and (2). Inspect all of the other connectors that are in the circuit for the engine fan control solenoid. Refer to Troubleshooting, "Electrical Connectors - Inspect".
Illustration 3 g01891557
P2 ECM connector (P2-19) Engine fan control solenoid (P2-7) Solenoid return
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the allen head screw on each of the ECM connectors for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points.Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The harness and wiring appear to be OK. Proceed to Test Step 2.
Not OK - There is a problem in the connectors and/or wiring.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check for Active Diagnostic Codes
Remove electrical power from the ECM.
Connect Cat ET to the service tool connector.
Restore electrical power to the ECM.
Monitor the active diagnostic code screen on Cat ET. Check and record any active diagnostic codes.Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Select diagnostic tests from Cat ET.
Select the "Override Parameters" screen on Cat ET.
Activate the fan override.
Monitor the active diagnostic code screen on Cat ET. Check and record any active diagnostic codes.Note: Wait at least 30 seconds in order for the diagnostic code to become active.
Disable the fan override.
Determine if the problem is related to an open circuit diagnostic code -5 or a short circuit diagnostic code -6.Expected Result:No diagnostic codes are active.Results:
OK - No diagnostic codes are active.Repair: The problem may have been related to a faulty connection in the harness. Carefully inspect the connectors and wiring. Refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - A short circuit diagnostic code -6 is active at this time. Proceed to Test Step 3.
Not OK - An open circuit diagnostic code -5 is active at this time. Proceed to Test Step 4.Test Step 3. Disconnect the Connector for the Engine Fan Control Solenoid in Order to Create an Open Circuit
Remove electrical power from the ECM.
Disconnect the connector for the engine fan control solenoid.
Restore electrical power to the ECM.
Monitor the active diagnostic code screen on Cat ET. Check and record any active diagnostic codes.Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Select diagnostic tests from Cat ET.
Select the "Override Parameters" screen on Cat ET.
Activate the fan override.
Monitor the active diagnostic code screen on Cat ET. Check and record any active diagnostic codes.Note: Wait at least 30 seconds in order for the diagnostic code to become active.
Disable the fan override.Expected Result:An open circuit diagnostic code -5 is now active for the engine fan control solenoid.Results:
OK - A short circuit diagnostic code -6 was active before disconnecting the connector. An open circuit diagnostic code -5 became active after disconnecting the connector.Repair: Temporarily connect a new engine fan control solenoid to the harness, but do not install the new engine fan control solenoid. Verify that there are no active diagnostic codes for the engine fan control solenoid. If there are no active diagnostic codes for the engine fan control solenoid, permanently install the new engine fan control solenoid. Clear any logged diagnostic codes.STOP
Not OK - A short circuit diagnostic code -6 remains active when the connector for the engine fan control solenoid is disconnected. There is a short circuit between the harness connector for the engine fan control solenoid and the ECM. Proceed to Test Step 5.Test Step 4. Create a Short at the Connector for the Engine Fan Control Solenoid
Remove electrical power from the ECM.
Fabricate a jumper wire that is long enough to create a short between the terminals of the connector for the engine fan control solenoid. Crimp connector pins to each end of the jumper wire.
Install the jumper wire between terminal 1 (engine fan control solenoid)
Parts connecting Force:
818052A 4
818052A 4 CONNECTING ROD W/CAP AND SCREWS
H0202B80L, H0202B81M, H0202H79K, H0202H82N, H0252B83G, H0252H77B, H0252H78C, H0252H78D, H0254H75A, H0257F88A, H0257F88B, H0306B80C, H0307H81D, H0350H78L, H0351H76K, H0352F90B, H0352F90C, H0352H77H, H0352H79L, H0353E91B, H0353H78K, H0353H80M, H0353H81
818052A 3
818052A 3 CONNECTING ROD W/CAP AND SCREWS
H0353E91A, H0355D89A, H0507A91C, H0507E91B, H0757H75A, H0903E91D, H090LD91D, H120LD91D, H120LD92B
366016 4