8T3272 RING-RETAINING Caterpillar parts
235, 235C, 245, 245B, 336E, 336E L, 345D L, 349D, 349D L, 349E, 349E L, 349E L VG, 349F L, 374D L, AD55, AD55B, PIN GRAB
Rating:
Alternative (cross code) number:
CA8T3272
8T-3272
8T3272
CA8T3272
8T-3272
8T3272
Weight: 0.03 pounds 0 kg.
Information:
ID
58.75
mm
THICKNESS
2.36
mm
TYPE
CIRCLIP-AXL
EXCAVATOR, UNDERGROUND ART TRUCK,
Compatible equipment models: 8T3272:
Number on catalog scheme:
21
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Information:
Control of Air and Fuel
The ECM determines the desired volume for the flow rates of the air and fuel. The determination is based on the desired engine speed, the actual engine speed, and the calculated load. Next, the ECM sends information on the desired flow of air and fuel to the fuel metering valve via a PWM signal. The ECM monitors the content of the resulting exhaust gas. The ECM fine tunes the signal to the fuel metering valve in order to achieve the desired exhaust oxygen. The process is repeated continuously during engine operation.Start/Stop Control
The ECM contains the logic and the outputs for controlling the starting and stopping of the engine. The logic for starting and stopping can be programmed by the customer. The ECM supplies positive "+" battery voltage to the starting motor relay and the gas shutoff valve.The engine uses an energize-to-run system. The gas shutoff valve must remain energized in order to supply fuel to the engine. If power is removed from the gas shutoff valve, the fuel is shut off.Monitoring Engine Operation
Sensors are used in order to monitor engine operation. Wiring harnesses connect the sensors to the ECM. The ECM uses information from the sensors in order to monitor the engine. The ECM also uses information from the sensors in order to control the engine. The information is also used to generate event codes, and diagnostic codes. The codes can be read with Caterpillar Electronic Technician (ET).Event - An event is a result of abnormal engine operation. If abnormal engine operation is detected, the ECM generates an event code. The ECM can generate an alarm or a shutdown for abnormal engine operation. These conditions are some examples of events: high inlet air temperature, low oil pressure and engine overspeed.Diagnostic - A diagnostic code is a result of a problem with the operating system or with the monitoring system. The ECM uses sensors and internal circuitry to monitor the system components. If a problem develops in a component or a wiring harness, the control system will sense the problem. The control system will notify the operator by creating a diagnostic code. Some examples of conditions that activate diagnostics are a short in a circuit for a sensor, an open circuit, or a noisy signal.Note: For detailed information on event codes and diagnostic codes, refer to Troubleshooting.Sensors
Sensors provide information to the ECM. The information enables the ECM to control the engine as efficiently as possible over a wide range of operating conditions. The information is used for monitoring engine operation.Illustrations 2, 3, and 4 show the locations of the sensors.
Illustration 2 g00913032
(1) Coolant pressure switch (pump inlet pressure) (2) Detonation sensor (3) Electrohydraulic actuator pressure switch (4) Inlet air temperature sensor (5) Engine coolant temperature sensor
Illustration 3 g00913033
(6) Pressure sensor for unfiltered oil (7) Pressure sensor for filtered oil (8) Engine coolant pressure sensor (outlet) (9) Oxygen sensor (10) Manifold air pressure sensor (11) Engine oil temperature sensor (12) Oxygen buffer (13) Speed/timing sensorThe functions of the
The ECM determines the desired volume for the flow rates of the air and fuel. The determination is based on the desired engine speed, the actual engine speed, and the calculated load. Next, the ECM sends information on the desired flow of air and fuel to the fuel metering valve via a PWM signal. The ECM monitors the content of the resulting exhaust gas. The ECM fine tunes the signal to the fuel metering valve in order to achieve the desired exhaust oxygen. The process is repeated continuously during engine operation.Start/Stop Control
The ECM contains the logic and the outputs for controlling the starting and stopping of the engine. The logic for starting and stopping can be programmed by the customer. The ECM supplies positive "+" battery voltage to the starting motor relay and the gas shutoff valve.The engine uses an energize-to-run system. The gas shutoff valve must remain energized in order to supply fuel to the engine. If power is removed from the gas shutoff valve, the fuel is shut off.Monitoring Engine Operation
Sensors are used in order to monitor engine operation. Wiring harnesses connect the sensors to the ECM. The ECM uses information from the sensors in order to monitor the engine. The ECM also uses information from the sensors in order to control the engine. The information is also used to generate event codes, and diagnostic codes. The codes can be read with Caterpillar Electronic Technician (ET).Event - An event is a result of abnormal engine operation. If abnormal engine operation is detected, the ECM generates an event code. The ECM can generate an alarm or a shutdown for abnormal engine operation. These conditions are some examples of events: high inlet air temperature, low oil pressure and engine overspeed.Diagnostic - A diagnostic code is a result of a problem with the operating system or with the monitoring system. The ECM uses sensors and internal circuitry to monitor the system components. If a problem develops in a component or a wiring harness, the control system will sense the problem. The control system will notify the operator by creating a diagnostic code. Some examples of conditions that activate diagnostics are a short in a circuit for a sensor, an open circuit, or a noisy signal.Note: For detailed information on event codes and diagnostic codes, refer to Troubleshooting.Sensors
Sensors provide information to the ECM. The information enables the ECM to control the engine as efficiently as possible over a wide range of operating conditions. The information is used for monitoring engine operation.Illustrations 2, 3, and 4 show the locations of the sensors.
Illustration 2 g00913032
(1) Coolant pressure switch (pump inlet pressure) (2) Detonation sensor (3) Electrohydraulic actuator pressure switch (4) Inlet air temperature sensor (5) Engine coolant temperature sensor
Illustration 3 g00913033
(6) Pressure sensor for unfiltered oil (7) Pressure sensor for filtered oil (8) Engine coolant pressure sensor (outlet) (9) Oxygen sensor (10) Manifold air pressure sensor (11) Engine oil temperature sensor (12) Oxygen buffer (13) Speed/timing sensorThe functions of the
Cat SIS web machinery list:
Parts ring Caterpillar catalog:
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 320C, 320C FM, 320D, 320D FM, 320D FM RR, 322 FM L, 322B L, 322B LN, 322C, 322C FM, 323D LN, 323D SA, 323E L, 324D, 324D FM, 324D FM LL, 3...
330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E HVG, 336E L, 336E LN, 340D L, 340D2 L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 34...
345C, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L, 375, 385B, 385C, 385C L, 390D, 390D L, 390F L, 5080
322B L, 322C, 322C FM, 324D FM, 324D FM LL, 325B L, 328D LCR, 330B, 330B L, 330D, 330D L, 330D MH, 336D L, 336D LN, 336E HVG, 345B II, 345B L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349...
322C, 322C FM, 324D FM, 324D FM LL, 325C, 325C FM, 325C L, 325D FM, 325D FM LL, 325D L, 325D MH, 328D LCR, 329D L, 330C, 330C L, 330D, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336...
322C, 322C FM, 324D FM, 324D FM LL, 325C, 325C FM, 325C L, 325D FM, 325D FM LL, 325D L, 325D MH, 328D LCR, 329D L, 330C, 330C L, 330D, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336...
323D L, 323D2 L, 324D, 324D L, 324D LN, 324E LN, 325C, 325D, 325D L, 329D L, 329D LN, 329E L, 329E LN, 330B L, 330C, 330C L, 330D L, 330D LN, 336D L, 336D LN, 336D2 L, 336E LN, 345B II, 345C, 345C L, ...
345C, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L, 385B, 385C, 385C L, 390D, 390D L, 390F L
345C, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L, 375, 385B, 385C, 385C L, 390D, 390D L, 390F L
325 L, 325C, 328D LCR, 330, 330 FM L, 330 L, 330B, 330B L, 330C, 330C FM, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 345B II, 345C, 345C L, 365B, 365B II, 365B L, 365C, 36...
321C, 325C, 328D LCR, 330C, 330C FM, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 340D L, 340D2 L, ...
345C, 345C L, 365C, 365C L, 365C L MH, 374D L, 374F L, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, D10, D9G, D9H
245, 245B
235, 235C, 235D, 994, 994D, 994F, 994H, D11R, R1300, R1300G, R1300G II
9F9979
RING
245
245
8C3113
RING-RETAINING
227, 245, 5130, 5130B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797F, 973C, AP-1000, AP-1000B, AP-1055B, AP-655C, AP-655D, AP1000E, AP1055E, BG-2455D, BG-260D, BG1000E, BG10...
227, 245, 5130, 5130B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797F, 973C, AP-1000, AP-1000B, AP-1055B, AP-655C, AP-655D, AP1000E, AP1055E, BG-2455D, BG-260D, BG1000E, BG10...
9T4287
RING
227, 245
227, 245
235, 235C, 235D, 245, 245B, 245D, 345B L, 350, 375, 375 L, 5080, 5110B, 651B, 651E, 657E
215C, 215D, D8L, D8N, D8R, D8R II, D8T, D9N
235B, 235C, 235D, 245, 245B, 245D
235, 235C, 245, 245B, 988G, 988H, 988K, 993K, D11R, D11T, R1600G, R1600H
225, 951B, 953, 953C, D5, D5B, D5E
225, 225D, 227, 229, 229D, 973, 973C
215B, 225, 231D, HM415B, SW345B, SW60