7T4754 IMPELLER-CONVERTER Caterpillar parts
30/30, D5H, D5H XL, D5HTSK II, DEUCE
Rating:
Alternative (cross code) number:
CA7T4754
7T-4754
7T4754
CA7T4754
7T-4754
7T4754
Weight: 15 pounds 7 kg.
TRACK SKIDDER, TRACK-TYPE TRACTOR,
Related part:
7T4754
IMPELLER-TC-YM
3857231
CL
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Compatible equipment models: 7T4754:
Information:
All Products With Direct Electric StartingReference: Service Magazine; May 28, 1990; Page 4; "Jump Starting Procedures." Service Magazine; May 4, 1987; Page 10; "Alternator/Generator Output Test on the Engine."Electrical components may suffer damage from high electrical system voltage. Damage identified by parts returned to the factory includes arc.burn spots in small switches and connectors. Electronic controls show damage to printed circuit boards. Electronic components show damage from arcing and burning. These damages are possible only from extremely high voltages.
The cause of component damage is generally one of two possibilities:
1. Incorrect jump starting procedure, where a stalled engine is jumped by a source with voltage higher than the system voltage of the stalled engine. See the first Reference Article.
Jump sources higher than system voltage of the stalled engine are sometimes thought to give better cranking speeds and subsequent startability. Higher-than-rated jump sources cause damage to starters, batteries, and other electrical components. Batteries can also explode causing personal injury. NEVER jump with a source higher than the system of the stalled engine. Use a 12V source on a 12V system and 24V on 24V system, etc.
2. When the alternator voltage regulator is shorted, causing full (rated) charging current, AND an open circuit or loose connection exists in the charging circuit.The regulator adjusts alternator output by varying field current to maintain correct system voltage. Regulators have, mainly, two failure modes: open or shorted. When open, there is no field current and no alternator output. If shorted, field current is maximum causing maximum rated, uncontrolled, output current, provided the engine is running at or above about 75% of rated engine speed.
Batteries serve two main functions in ANY electrical system:
1. Provide energy for cranking the engine.2. Act as an accumulator to provide a "smoothing" effect for electrical system voltage variations.Alternators serve two main functions in ANY electrical system:
1. To recharge batteries after an engine startup.2. To supply ALL electrical system requirements after the engine is running.If all connections are tight, full alternator output will, first, cause battery damage. Batteries become the "load" for a runaway alternator. They absorb alternator current that is above what is required for normal machine operation. This high current causes battery damage from excessive: electrolyte temperatures, plate warping, and water loss. As the electrolyte level (water) drops, the chance of battery explosion increases and system voltage will also increase out of control. The result is damage to other electrical system components like relays, lighting and electronic controls.
Full alternator output with loose or poor connections in the charging circuit (even with batteries in good condition) can cause immediate high voltage damage to electrical system components. Loose or poor connections, such as at the battery terminals, can cause short periods of an "open circuit," which has the same result as batteries with low electrolyte. Opening the disconnect during an overcharging condition also has the same effect as a loose connection.
The following are clues to high charging system voltage due to voltage regulator failure:
1. More than one lighting component blackened or
The cause of component damage is generally one of two possibilities:
1. Incorrect jump starting procedure, where a stalled engine is jumped by a source with voltage higher than the system voltage of the stalled engine. See the first Reference Article.
Jump sources higher than system voltage of the stalled engine are sometimes thought to give better cranking speeds and subsequent startability. Higher-than-rated jump sources cause damage to starters, batteries, and other electrical components. Batteries can also explode causing personal injury. NEVER jump with a source higher than the system of the stalled engine. Use a 12V source on a 12V system and 24V on 24V system, etc.
2. When the alternator voltage regulator is shorted, causing full (rated) charging current, AND an open circuit or loose connection exists in the charging circuit.The regulator adjusts alternator output by varying field current to maintain correct system voltage. Regulators have, mainly, two failure modes: open or shorted. When open, there is no field current and no alternator output. If shorted, field current is maximum causing maximum rated, uncontrolled, output current, provided the engine is running at or above about 75% of rated engine speed.
Batteries serve two main functions in ANY electrical system:
1. Provide energy for cranking the engine.2. Act as an accumulator to provide a "smoothing" effect for electrical system voltage variations.Alternators serve two main functions in ANY electrical system:
1. To recharge batteries after an engine startup.2. To supply ALL electrical system requirements after the engine is running.If all connections are tight, full alternator output will, first, cause battery damage. Batteries become the "load" for a runaway alternator. They absorb alternator current that is above what is required for normal machine operation. This high current causes battery damage from excessive: electrolyte temperatures, plate warping, and water loss. As the electrolyte level (water) drops, the chance of battery explosion increases and system voltage will also increase out of control. The result is damage to other electrical system components like relays, lighting and electronic controls.
Full alternator output with loose or poor connections in the charging circuit (even with batteries in good condition) can cause immediate high voltage damage to electrical system components. Loose or poor connections, such as at the battery terminals, can cause short periods of an "open circuit," which has the same result as batteries with low electrolyte. Opening the disconnect during an overcharging condition also has the same effect as a loose connection.
The following are clues to high charging system voltage due to voltage regulator failure:
1. More than one lighting component blackened or
Caterpillar parts catalog:
Parts impeller Caterpillar catalog:
1523952
IMPELLER-PUMP
120H, 120H ES, 120H NA, 120K, 12K, 135H, 135H NA, 140K, 140K 2, 160K, 30/30, 3114, 3116, 3126, 3126B, 3126E, 320B, 322B L, 322B LN, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325B L, 3...
120H, 120H ES, 120H NA, 120K, 12K, 135H, 135H NA, 140K, 140K 2, 160K, 30/30, 3114, 3116, 3126, 3126B, 3126E, 320B, 322B L, 322B LN, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325B L, 3...
1347422
IMPELLER-PUMP
120G, 12G, 12H, 12H ES, 12H NA, 130G, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA, 1673C, 235B, 330, 330 L, 3304, 3304B, 3306, 3306B, 3306C, 330B L, 350, 515...
120G, 12G, 12H, 12H ES, 12H NA, 130G, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA, 1673C, 235B, 330, 330 L, 3304, 3304B, 3306, 3306B, 3306C, 330B L, 350, 515...
7N5910
IMPELLER-PUMP
120G, 12G, 12H, 12H NA, 130G, 140B, 140G, 140H, 160H, 1673C, 235, 235C, 235D, 330 L, 3304, 3304B, 3306, 3306B, 330B, 350, 518C, 528, 528B, 530B, 561D, 572G, 615C, 621E, 627E, 639D, 814, 815B, 920, 930...
120G, 12G, 12H, 12H NA, 130G, 140B, 140G, 140H, 160H, 1673C, 235, 235C, 235D, 330 L, 3304, 3304B, 3306, 3306B, 330B, 350, 518C, 528, 528B, 530B, 561D, 572G, 615C, 621E, 627E, 639D, 814, 815B, 920, 930...
4W9645
IMPELLER
120G, 12G, 12H NA, 140G, 215C, 235, 973, CB-534, D4E, D4E SR, D5H, D6D, D6H, D6H XL, D6H XR, D6R, D7G, G3304, G3306
120G, 12G, 12H NA, 140G, 215C, 235, 973, CB-534, D4E, D4E SR, D5H, D6D, D6H, D6H XL, D6H XR, D6R, D7G, G3304, G3306
2239143
IMPELLER
14M, 16M, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K LRC, 725, 730, 730C, 966H, 972H,...
14M, 16M, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K LRC, 725, 730, 730C, 966H, 972H,...
2681846
IMPELLER
797, 797B, 797F, C175-20
797, 797B, 797F, C175-20
2194455
IMPELLER-PUMP
777C, 777D, 777F, 854K, 992K, 993K, C27, C32, D10N, D10R, D10T, D11R, D11T, TH48-E70
777C, 777D, 777F, 854K, 992K, 993K, C27, C32, D10N, D10R, D10T, D11R, D11T, TH48-E70
2463129
IMPELLER-PUMP
365C, 365C L, 365C L MH, 374D L, 374F L, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 735, 735B, 740, 740B, 770G, 772G, 824K, 825K, 826K, C15, C15 I6, C18, C18 I6, CX31-C15I, CX31-C18I, CX35-C18I, ...
365C, 365C L, 365C L MH, 374D L, 374F L, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 735, 735B, 740, 740B, 770G, 772G, 824K, 825K, 826K, C15, C15 I6, C18, C18 I6, CX31-C15I, CX31-C18I, CX35-C18I, ...
2243236
IMPELLER-PUMP
385C, 385C FS, 385C L, 735, 740, C15, C18, D9T
385C, 385C FS, 385C L, 735, 740, C15, C18, D9T
1501145
IMPELLER AS
784C, 785C, 785D, SPF343C, TH48-E70, TH48-E80
784C, 785C, 785D, SPF343C, TH48-E70, TH48-E80
7C2507
IMPELLER-PUMP
3606, 3608, 3612, 3616, G3606, G3608, G3612, G3616
3606, 3608, 3612, 3616, G3606, G3608, G3612, G3616
4W1652
IMPELLER
3612, 3616, G3612, G3616
3612, 3616, G3612, G3616
1279755
IMPELLER
3406C, 3406E
3406C, 3406E
9Y3599
IMPELLER-PUMP
3176
3176
2W4774
IMPELLER-WATER
3208, C27, G3408, G3412
3208, C27, G3408, G3412