2760478 PISTON Caterpillar parts
988G, 988H
Rating:
Alternative (cross code) number:
CA2760478
276-0478
2760478
CA2760478
276-0478
2760478
Weight: 52 pounds 23 kg.
Information:
PISTON DIAMETER
82.565
mm
THICKNESS
106
mm
NUMBER OF C BORE
0
Wear Ring Dia
213.37
NOMINAL CYLINDER BORE
219.075
NOMINAL ROD DIAMETER
0
WHEEL LOADER,
Number on catalog scheme:
5
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Information:
The ride control switch is a two position switch. When the switch is in the OFF position, the ride control system is off. When the switch is in the ON position, the ride control system will activate when the motor speed of the machine exceeds the activation speed for the ride control feature. When the ride control system is active, the ECM energizes the ride control relay. The relay then energizes the ride control solenoid. The ride control system will turn OFF when the average motor speed drops below the deactivation threshold or when the bucket dump solenoid is energized.Air Filter Switch
Illustration 17 g01283387
Air Filter Switch The air filter switch will close, if the air filter is blocked with debris. This switch is normally open. A warning will be displayed on the monitor. However, when a warning of higher priority is occurring at the same time, the warning with the higher priority will be displayed.Hydraulic Filter Bypass Switch
Illustration 18 g01283403
The contacts of the switch are normally open below the deactuation pressure. If the pressure goes above the actuation pressure the hydraulic return oil bypasses the filter. When the oil bypasses the filter the switch closes. When the switch closes, a voltage signal is sent to the ECM. This notifies the ECM of the plugged hydraulic filter. Once the pressure drops below the deactuation pressure, the switch opens. The filter is functioning properly when the switch opens.Sensors
Left Motor Speed Sensor
Illustration 19 g01279630
The left motor speed sensor allows the ECM to determine the actual speed of the left hydraulic motor. The sensor provides two square wave signals that are proportional to the speed of the motor. The signals are used to calculate the speed and direction of the left motor. This sensor is powered by the regulated 8 VDC power supply on the Machine ECM.Right Motor Speed Sensor
Illustration 20 g01279630
The right motor speed sensor allows the ECM to determine the actual speed of the right hydraulic motor. The sensor provides two square wave signals that are proportional to the speed of the motor. The signals are used to calculate the speed and direction of the right motor. This sensor is powered by the regulated 8 VDC power supply on the Machine ECM.Engine Speed Sensor
Illustration 21 g01273687
The engine speed sensor is a passive sensor that detects the speed of the engine flywheel. The engine flywheel has 112 teeth. The speed sensor provides a frequency input to the ECM. The frequency is proportional to the speed of the engine.Throttle Position Sensor
Illustration 22 g01282599
The throttle position sensor controls the maximum machine speed. The sensor also determines the desired engine speed for a certain position of the pedal. The throttle position sensor provides a PWM signal proportional to the position of the throttle pedal. The duty cycle increases as the pedal is depressed.Hydraulic Oil Temperature Sensor
Illustration 23 g01282634
The hydraulic oil temperature sensor allows the ECM to determine the temperature of the hydraulic oil. The sensor sends a signal to the ECM. The temperature is limited from −40 °C (−40.0000 °F) to
Illustration 17 g01283387
Air Filter Switch The air filter switch will close, if the air filter is blocked with debris. This switch is normally open. A warning will be displayed on the monitor. However, when a warning of higher priority is occurring at the same time, the warning with the higher priority will be displayed.Hydraulic Filter Bypass Switch
Illustration 18 g01283403
The contacts of the switch are normally open below the deactuation pressure. If the pressure goes above the actuation pressure the hydraulic return oil bypasses the filter. When the oil bypasses the filter the switch closes. When the switch closes, a voltage signal is sent to the ECM. This notifies the ECM of the plugged hydraulic filter. Once the pressure drops below the deactuation pressure, the switch opens. The filter is functioning properly when the switch opens.Sensors
Left Motor Speed Sensor
Illustration 19 g01279630
The left motor speed sensor allows the ECM to determine the actual speed of the left hydraulic motor. The sensor provides two square wave signals that are proportional to the speed of the motor. The signals are used to calculate the speed and direction of the left motor. This sensor is powered by the regulated 8 VDC power supply on the Machine ECM.Right Motor Speed Sensor
Illustration 20 g01279630
The right motor speed sensor allows the ECM to determine the actual speed of the right hydraulic motor. The sensor provides two square wave signals that are proportional to the speed of the motor. The signals are used to calculate the speed and direction of the right motor. This sensor is powered by the regulated 8 VDC power supply on the Machine ECM.Engine Speed Sensor
Illustration 21 g01273687
The engine speed sensor is a passive sensor that detects the speed of the engine flywheel. The engine flywheel has 112 teeth. The speed sensor provides a frequency input to the ECM. The frequency is proportional to the speed of the engine.Throttle Position Sensor
Illustration 22 g01282599
The throttle position sensor controls the maximum machine speed. The sensor also determines the desired engine speed for a certain position of the pedal. The throttle position sensor provides a PWM signal proportional to the position of the throttle pedal. The duty cycle increases as the pedal is depressed.Hydraulic Oil Temperature Sensor
Illustration 23 g01282634
The hydraulic oil temperature sensor allows the ECM to determine the temperature of the hydraulic oil. The sensor sends a signal to the ECM. The temperature is limited from −40 °C (−40.0000 °F) to
Caterpillar parts catalog:
Parts piston Caterpillar catalog:
120M, 12M, 140M, 14H, 14M, 160M, 16H, 345D, 345D L, 345D L VG, 349D, 349D L, 45, 5110B, 55, 651E, 657E, 657G, 824C, 824G II, 824H, 825G II, 825H, 826G II, 826H, 834G, 834H, 836G, 836H, 924G, 924GZ, 92...
246D, 24M, 262D, 272D, 277D, 279D, 287D, 289D, 299D, 305.5E, 345D, 345D L, 345D L VG, 349D, 349D L, 35, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 385B, 414E, 416E, 416F, 422E, 422F, 424B...
246C, 256C, 262C, 262C2, 272C, 277C, 277C2, 279C, 279C2, 2864C, 287C, 287C2, 289C, 289C2, 297C, 299C, 345C, 345C L, 345C MH, 5110B, 586C, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K LRC, 824C, ...
24H, 24M, 589, 776C, 776D, 777B, 777D, 777F, 777G, 824C, 824G, 824G II, 824H, 825G, 825G II, 825H, 826C, 826G, 826G II, 826H, 834B, 834G, 834H, 836, 836G, 836H, 980C, 980F, 980F II, 980G, 980G II, 980...
24H, 24M, 589, 627E, 627F, 627G, 627H, 627K, 627K LRC, 637E, 637G, 824C, 824G, 824G II, 824H, 825G, 825G II, 825H, 826C, 826G, 826G II, 826H, 834B, 834G, 834H, 836, 836G, 836H, 980C, 980F, 980F II, 98...
589, 834B, 834G, 834H, 836, 836G, 836H, 988G, 988H, AD30, D350E, D350E II, D400, D400E, D44B, D550B, D9L, D9N, D9R, R2900, R2900G, R3000H
824G, 825G, 826G, 834B, 834G, 834H, 834K, 836, 836G, 836H, 836K, 980G, 986H, 988F II, 988G, 988H, 988K
24M, 834B, 834G, 834H, 836, 836G, 836H, 988G, 988H, AD30, D10N, D350E, D350E II, D400, D400E, D44B, D550B, D9L, R2900, R2900G, R3000H
24H, 24M, 69D, 735, 740, 769C, 769D, 770, 771C, 771D, 772, 773B, 773D, 773E, 773F, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G LRC, 775G OEM, 834G, 834H, 836G, 836H, 844, 844H, 988F II, 988G, 988...
797, 834G, 834H, 836G, 836H, 844K, 854K, 988G, 988H, 990K, 992K, 993K, D8T, D9T
1945998
PISTON AS
988H
988H
1949508
PISTON
980H, 988H
980H, 988H
797, 834G, 834H, 836G, 836H, 844K, 854K, 988G, 988H, 990K, 992K, 993K, D8T, D9T
1767517
PISTON-CONTROL
797, 834G, 834H, 836G, 836H, 844K, 854K, 988G, 988H, 990K, 992K, 993K, D8T, D9T
797, 834G, 834H, 836G, 836H, 844K, 854K, 988G, 988H, 990K, 992K, 993K, D8T, D9T
1324451
PISTON-CLUTCH
988G, 988H
988G, 988H
1412367
PISTON-REACTION
966G, 966H, 972G, 972H
966G, 966H, 972G, 972H
966G, 966G II, 972G, 972G II
1459105
PISTON
966G, 966G II, 966H, 972G, 972G II, 972H
966G, 966G II, 966H, 972G, 972G II, 972H
3704122
PISTON
950H, 950K, 962H, 962K, 966H, 966K, 966M, 972H, 972K, 972M
950H, 950K, 962H, 962K, 966H, 966K, 966M, 972H, 972K, 972M
3405931
PISTON
990 II, 990H
990 II, 990H
1796910
PISTON AS
550, 550B, 560B, 570, 570B, 580, 580B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797, 797B, 797F, 844, 844H, 990 II, 990H, 993K, 994F, 994H
550, 550B, 560B, 570, 570B, 580, 580B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797, 797B, 797F, 844, 844H, 990 II, 990H, 993K, 994F, 994H
1453791
PISTON
550, 550B, 570, 570B, 580, 580B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797, 797B, 797F, 844, 844H, 844K, 990 II, 990H, 993K, 994F, M320, M322C, M322D, M322D MH
550, 550B, 570, 570B, 580, 580B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797, 797B, 797F, 844, 844H, 844K, 990 II, 990H, 993K, 994F, M320, M322C, M322D, M322D MH
1796928
PISTON
550, 550B, 570, 570B, 580, 580B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797, 797B, 797F, 844, 844H, 844K, 990 II, 990H, 993K, 994F
550, 550B, 570, 570B, 580, 580B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797, 797B, 797F, 844, 844H, 844K, 990 II, 990H, 993K, 994F
1242730
PISTON-CLUTCH
994D, 994F, 994H
994D, 994F, 994H