8W5257 DIFFERENTIAL GP Caterpillar parts
637E, 637G, 824C, 826C, 980C, 980F, 980F II, D35C, D35HP, D44B, R1700 II
Rating:
Alternative (cross code) number:
CA8W5257
8W-5257
8W5257
CA8W5257
8W-5257
8W5257
Weight: 47 pounds 21 kg.
ARTICULATED TRUCK, WHEEL SCRAPER,
Compatible equipment models: 8W5257:
Information:
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 dead. One or more electronic controls dead.2. Electrolyte level low in ALL cells of ALL batteries.3. If engine is operational, charging voltage measures over 29.0 volts (or over 15.0 volts for 12V systems). The following are clues to incorrect jump starting:
1. More than one lighting component blackened or dead. One or more electronic controls functioning incorrectly.2. One or more batteries exploded. Electrolyte level in undamaged cells appears normal.3. If engine is operational, charging voltage appears normal. If alternator was damaged by reverse hookup of jump source, the most likely failure would be low or no alternator output.
Caterpillar SIS machinery equipment:
Caterpillar SIS
637K Wheel Tractor Scraper WTY00001-UP (MACHINE) »
8W-5257
DIFFERENTIAL GP-NOSPIN
826C LANDFILL COMPACTOR / POWER SHIFT / 87X00001-00586 (MACHINE) POWERED BY 3406 ENGINE »
8W-5257
DIFFERENTIAL GP
637E Wheel Scraper 1HB00001-00690 (MACHINE) POWERED BY 3306 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
980C Wheel Loader 63X06575-UP (MACHINE) POWERED BY 3406 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
826C Landfill Compactor 87X00587-UP (MACHINE) »
8W-5257
DIFFERENTIAL GP-NOSPIN
824C TRACTOR 85X01194-UP (MACHINE) POWERED BY 3406 ENGINE »
8W-5257
DIFFERENTIAL GP
980C WHEEL LOADER 2XD00001-UP (MACHINE) POWERED BY 3406 ENGINE »
8W-5257
DIFFERENTIAL GP
980F Wheel Loader 8CJ00001-UP (MACHINE) POWERED BY 3406 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
980F WHEEL LOADER 3HK00001-UP (MACHINE) POWERED BY 3406 ENGINE »
8W-5257
DIFFERENTIAL GP
980F SERIES II WHEEL LOADER 8JN00001-UP (MACHINE) POWERED BY 3406C DI ENGINE »
8W-5257
DIFFERENTIAL GP
980F II WHEEL LOADER 4RN00001-UP (MACHINE) POWERED BY 3406C DI ENGINE »
8W-5257
DIFFERENTIAL GP
637E Series II Wheel Tractor-Scraper (Coal) 1HB00691-UP (MACHINE) POWERED BY 3306 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
R1700 SERIES II LOAD HAUL DUMP 4LZ00001-UP (MACHINE) »
8W-5257
DIFFERENTIAL GP
637G WHEEL SCRAPER AYN00001-UP (MACHINE) POWERED BY 3306 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
637G WHEEL SCRAPER-COAL BOWL AWE00001-UP (MACHINE) POWERED BY 3306 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
637G Wheel Scraper CEJ00001-UP (MACHINE) POWERED BY C-9 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
637G Wheel Scraper Coal Bowl CEM00001-UP (MACHINE) POWERED BY C-9 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
637G Wheel Scraper DEX00001-UP (MACHINE) POWERED BY C9 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
637G Wheel Scraper Coal Bowl DEY00001-UP (MACHINE) POWERED BY C9 Engine »
8W-5257
DIFFERENTIAL GP-NOSPIN
637K Wheel Tractor Scraper WTS00001-UP (MACHINE) »
8W-5257
DIFFERENTIAL GP-NOSPIN
637K Wheel Tractor Scraper WTT00001-UP (MACHINE) »
8W-5257
DIFFERENTIAL GP-NOSPIN
637K Wheel Tractor Scraper WTX00001-UP (MACHINE) »
8W-5257
DIFFERENTIAL GP-NOSPIN
D35C ARTICULATED DUMP TRUCK 2GD00001-00124 (MACHINE) POWERED BY 3306 ENGINE »
8W-5257
DIFFERENTIAL GP
D35HP ARTICULATED DUMP TRUCK 3FD00001-00079 (MACHINE) POWERED BY 3406 ENGINE »
8W-5257
DIFFERENTIAL GP
D44B ARTICULATED DUMP TRUCK 8SD00001-UP (MACHINE) POWERED BY 3408 ENGINE »
8W-5257
DIFFERENTIAL GP
Caterpillar parts catalog:
Parts differential Caterpillar catalog:
5V1271
DIFFERENTIAL GP
950B, 950B/950E, D25C, D30C, D350C, D35C, D35HP, D400
950B, 950B/950E, D25C, D30C, D350C, D35C, D35HP, D400
2V3955
DIFFERENTIAL GP
824C, 980C, 980F, D35C, D35HP, D40D, D44B, D550B
824C, 980C, 980F, D35C, D35HP, D40D, D44B, D550B
8R4771
DIFFERENTIAL & BEVEL GEAR GP
825C, 826C
825C, 826C
8R4770
DIFFERENTIAL GP
825C, 826C
825C, 826C
3141801
DIFFERENTIAL & BEVEL GEAR GP
R1700 II
R1700 II
9EP2695
DIFFERENTIAL & BEVEL GEAR GP
R1700 II
R1700 II
7U4079
DIFFERENTIAL GP
D250B, D25D, D300B, D300D, D350C, D35C
D250B, D25D, D300B, D300D, D350C, D35C
7U1249
DIFFERENTIAL GROUP
D35HP, D400, D40D
D35HP, D400, D40D
7U1818
DIFFERENTIAL LOCK,
D250B, D25C, D300B, D30C, D350C, D35C
D250B, D25C, D300B, D30C, D350C, D35C
7U2644
DIFFERENTIAL LOCK,
D250B, D25C, D300B, D30C, D350C, D35C
D250B, D25C, D300B, D30C, D350C, D35C
1492911
DIFFERENTIAL GP
824G, 824G II, 824H, 825G, 825G II, 826G, 826G II, 980G, 980G II, AD30, R1700G
824G, 824G II, 824H, 825G, 825G II, 826G, 826G II, 980G, 980G II, AD30, R1700G
3688636
DIFFERENTIAL & BEVEL GEAR GP
825K, 826H, 826K
825K, 826H, 826K
8R4772
DIFFERENTIAL & BEVEL GEAR GP
825C, 826C
825C, 826C
1246555
DIFFERENTIAL GP-NOSPIN
824G, 824G II, 824H, 824K, 825G II, 825H, 825K, 826G, 826G II, 826H, 826K, 980G, 980G II, 980H, R1700G
824G, 824G II, 824H, 824K, 825G II, 825H, 825K, 826G, 826G II, 826H, 826K, 980G, 980G II, 980H, R1700G
2759432
DIFFERENTIAL GP
2470C, 2570C, 2670C, 2864C, 525B, 525C, 533, 535B, 535C, 545C, 553C, 563C, 573C, 586C, HA770, HA771, HA870, TK370, TK371, TK380, TK381
2470C, 2570C, 2670C, 2864C, 525B, 525C, 533, 535B, 535C, 545C, 553C, 563C, 573C, 586C, HA770, HA771, HA870, TK370, TK371, TK380, TK381
8D2800
DIFFERENTIAL AND BEVEL GEAR GROUP
613, 613B
613, 613B
8K0034
DIFFERENTIAL AND GEAR GROUP
824B, 825B, 826B, 988
824B, 825B, 826B, 988
6DE1930
DIFFERENTIAL GP
AD40, AE40
AD40, AE40