F8048 BOWED WASHER Force
H0091B80B, H0091H79A, H0091H84D, H009201RS, H009201SD, H009201UD, H009201US, H0092284D, H0092B80G, H0092H79F, H0092H81H, H0092H81J, H0092H83K, H0092H84L, H0092S88A, H0092S91A, H0093S91A, H0094H81F, H0101B78A, H0102H76C, H0102H78E, H0121B79A, H0122H79
BOWED
Price: query
Rating:
Compatible models:
H0091B80B
H0091H79A
H0091H84D
H009201RS
H009201SD
H009201UD
H009201US
H0092284D
H0092B80G
H0092H79F
H0092H81H
H0092H81J
H0092H83K
H0092H84L
H0092S88A
H0092S91A
H0093S91A
H0094H81F
H0101B78A
H0102H76C
H0102H78E
H0121B79A
H0122H79E
H015201RS
H015201US
H015211SS
H0152B78D
H0152B83J
H0152C84K
H0152H79E
H0152H80F
H0152H81G
H0152S89A
H025201US
H0558H79L
H0559B80M
H0559H77H
H0559H77J
H0559H78K
H0659B78B
H1059H76D
Force
Force entire parts catalog list:
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- TOP COWL (84A THRU 87A MODELS) » F8048
- SHIFT LINKAGE (ALL MODELS) » F8048
- SHIFT LINKAGE » F8048
- SHIFT LINKAGE » F8048
- SHIFT LINKAGE » F8048
- SHIFT LINKAGE » F8048
- TOP COWL (84A THRU 87A MODELS) » F8048
- SHIFT LINKAGE (ALL MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE (MANUAL START MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE (ALTERNATOR MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- SHIFT LINKAGE (ALL MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- TOP COWL (84A THRU 87A MODELS) » F8048
- TOP COWL (84A THRU 87A MODELS) » F8048
- SHIFT LINKAGE (ALL MODELS) » F8048
- SHIFT LINKAGE » F8048
- TOP COWL (84A THRU 87A MODELS) » F8048
- SHIFT LINKAGE (ALL MODELS) » F8048
- TOP COWL (84A THRU 87A MODELS) » F8048
- SHIFT LINKAGE (ALL MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE (MANUAL START MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE (ALTERNATOR MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE (MANUAL START MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE (ALTERNATOR MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE (MANUAL START MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE (ALTERNATOR MODELS) » F8048
- SHIFT LINKAGE » F8048
- SHIFT LINKAGE » F8048
- SHIFT LINKAGE » F8048
H0152B83J 1983,1984
- ENGINE COVER AND SUPPORT PLATE » F8048
- TOP COWL (84A THRU 87A MODELS) » F8048
- SHIFT LINKAGE (ALL MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE (MANUAL START MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE (ALTERNATOR MODELS) » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- TOP COWL (84A THRU 87A MODELS) » F8048
- SHIFT LINKAGE (ALL MODELS) » F8048
- SHIFT LINKAGE » F8048
- ENGINE COVER AND SUPPORT PLATE » F8048
- SHIFT LINKAGE » F8048
- ELECTRICAL COMPONENTS » F8048
- ELECTRICAL COMPONENTS » F8048
- ELECTRICAL COMPONENTS » F8048
- ELECTRICAL COMPONENTS » F8048
- ELECTRICAL COMPONENTS » F8048
- ELECTRICAL COMPONENTS » F8048
- ELECTRICAL COMPONENTS » F8048
Information:
Table 1
Diagnostic Codes Table    
Code    Conditions which Generate this Code    System Response    
401-5 Ignition Transformer Secondary #1 : Current Below Normal
402-5 Ignition Transformer Secondary #2 : Current Below Normal
403-5 Ignition Transformer Secondary #3 : Current Below Normal
404-5 Ignition Transformer Secondary #4 : Current Below Normal
405-5 Ignition Transformer Secondary #5 : Current Below Normal
406-5 Ignition Transformer Secondary #6 : Current Below Normal
407-5 Ignition Transformer Secondary #7 : Current Below Normal
408-5 Ignition Transformer Secondary #8 : Current Below Normal
409-5 Ignition Transformer Secondary #9 : Current Below Normal
410-5 Ignition Transformer Secondary #10 : Current Below Normal
411-5 Ignition Transformer Secondary #11 : Current Below Normal
412-5 Ignition Transformer Secondary #12 : Current Below Normal
413-5 Ignition Transformer Secondary #13 : Current Below Normal
414-5 Ignition Transformer Secondary #14 : Current Below Normal
415-5 Ignition Transformer Secondary #15 : Current Below Normal
416-5 Ignition Transformer Secondary #16 : Current Below Normal     With the engine cranking, the Electronic Control Module (ECM) detects a low current flow in the secondary circuit for the ignition transformer.
There is a problem with the transformer ground.
An open circuit in the secondary winding of the transformer
There is a problem with the connection to the spark plug terminal post.
The spark plug has internal damage or an open circuit.
The spark plug gap is too wide.     The status of the transformer secondary output is set to 120 percent.
The alarm output is activated.
The code is logged.    
Table 2
Diagnostic Codes Table    
Code    Conditions which Generate this Code    System Response    
401-6 Ignition Transformer Secondary #1 : Current Above Normal
402-6 Ignition Transformer Secondary #2 : Current Above Normal
403-6 Ignition Transformer Secondary #3 : Current Above Normal
404-6 Ignition Transformer Secondary #4 : Current Above Normal
405-6 Ignition Transformer Secondary #5 : Current Above Normal
406-6 Ignition Transformer Secondary #6 : Current Above Normal
407-6 Ignition Transformer Secondary #7 : Current Above Normal
408-6 Ignition Transformer Secondary #8 : Current Above Normal
409-6 Ignition Transformer Secondary #9 : Current Above Normal
410-6 Ignition Transformer Secondary #10 : Current Above Normal
411-6 Ignition Transformer Secondary #11 : Current Above Normal
412-6 Ignition Transformer Secondary #12 : Current Above Normal
413-6 Ignition Transformer Secondary #13 : Current Above Normal
414-6 Ignition Transformer Secondary #14 : Current Above Normal
415-6 Ignition Transformer Secondary #15 : Current Above Normal
416-6 Ignition Transformer Secondary #16 : Current Above Normal     With the engine cranking, the ECM detects a high current flow in the secondary circuit for the ignition transformer.
A short circuit in the secondary winding of the transformer
The spark plug is fouled.
The spark plug gap is too close.     The status of the transformer secondary output is set to zero percent.
The alarm output is activated.
The code is logged.    The transformers are located on the covers for the valve lifters. Each transformer is grounded to a cover via the transformer mounting flange. The transformers initiate combustion by providing high voltage to the spark plugs. The positive output from the transformer secondary circuit is delivered to the connection for the spark plug.
Illustration 1 g02850759
(1) Wire seal (2) Lockwire (3) Ignition harness (4) Transformer (5) Terminal for the spark plug extension (6) Extension (7) Terminal for the spark plug (8) Spark plug (9) Mounting flange for the transformerThe secondary circuit of the transformer provides an initial 8,000 to 37,000 V to the spark plug via the extension. This voltage ionizes the spark plug gap. This voltage is then reduced to about 1000 V. The total duration of the spark is approximately 400 µ seconds.The ECM can diagnose the secondary circuit of the ignition transformers for open circuits and/or for short circuits. The ECM monitors the primary circuit of the ignition transformers. Secondary open circuits and short circuits will not directly shut down the engine. However, these conditions may lead to misfire which can cause lugging of the engine. Lugging of the engine can cause a shutdown.Caterpillar spark plugs are high voltage devices with internal resistors. The spark plugs operate at a voltage that is greater than 5,000 V.Most ignition systems are not affected by resistance in the secondary circuit. If a measurement of the resistance is desired, a megohmmeter must be used. A low voltage multimeter will not provide a reliable reading of the resistance. Oxidation of the spark plug internal components will affect the readings of those meters.Logged diagnostic codes provide a historical record. Before you begin this procedure, use the Caterpillar Electronic Technician (ET) to print the logged codes to a file.The most likely cause of the diagnostic code is a problem with the spark plug. The next likely cause is a poor electrical connection or a problem with the extension. The least likely cause is a problem with an ignition transformer.Test Step 1. Check the Status Screen of Cat ET for the Outputs of the Transformer Secondary Circuits
Turn the engine control switch to the OFF/RESET position. Switch the 16 amp circuit breaker for the ECM OFF.
Connect Cat ET to the service tool connector on the terminal box.
Switch the 16 amp circuit breaker for the ECM ON. Turn the engine control switch to the STOP position.
Use Cat ET to view the status screens for the ignition secondary voltage. The status screens must be built by the user. Use the tools that are in Cat ET in order to create the screens for the ignition secondary voltage. Examples of the status screens are shown in Table 3:
Table 3
Status Screens on Cat ET    
Screen 1
Group 8     Screen 2
Group 9    
"Cylinder #1 Transformer Secondary
Parts bowed Force:
F1666
F1666 BOWED SPRING WASHER
H0060B76A, H0060B78B, H0060H79C, H0060H80D, H0062B78J, H0062H79K, H0062H79M, H0064H80F, H0064H82H, H0067H79C, H0070B79A, H0071H81B, H0071H82C, H0071H83D, H0071H84E, H0072B81D, H0072H79B, H0072H80C, H0072H82E, H0075H79A, H0082H76G, H0082H78J, H0082H79
F17011
F17011 BOWED WASHER
H0356H75F, H0456B78J, H0456B79K, H0456B80L, H0457H82N, H0457H83P, H0503B83A, H0503H84B, H0507B85A, H0507C86A, H0507C87A, H0507F87B, H0507H81A, H0507H82B, H0555H74G, H0558H79L, H0559B80M, H0559H77H, H0559H77J, H0559H78K, H0559H80N, H0559H83R, H0606H84
8048
1666