9Y4056 PULLEY-ALTERNATOR Caterpillar parts
3114, 3116, 3126, 3126E, AP-1000, AP-1050, D10N, D10R, D10T, D9R
Rating:
Alternative (cross code) number:
CA9Y4056
9Y-4056
9Y4056
CA9Y4056
9Y-4056
9Y4056
Weight: 2 pounds 1 kg.
Information:
CENTERLINE OF SPACING
26.8
mm
FINISHED ID
22.238
mm
GROOVE WIDTH
12.7
mm
KEYWAY WIDTH
4.021
mm
NUMBER OF GROOVES
2
OD
87
mm
ASPHALT PAVER, TRUCK ENGINE,
Compatible equipment models: 9Y4056:
Information:
Repairing Cracks and Defective Welds
Cracks often develop in components that are used for unusually severe applications or are approaching the limit of their service life. Defective welds, on the other hand, are usually caused by careless welders who fail to use good welding techniques. The most common defects in welds are: underbead cracks, slag inclusions, porosity (gas holes and pockets), cold lap, undercut and slugged welds. The procedures for repairing cracks and replacing defective welds are similar.
Figure 47 - Underbead cracks are caused by hydrogen gas being absorbed by the seal.Underbead cracks occur between the weld deposit and the parent metal or in the heat affected zone under the weld deposit in carbon steels (Figure 47). The cracks are usually caused by hydrogen gas being absorbed by the parent metal and being released as the metal cools. The gas builds up pressure in the minute voids of the parent metal and forces the metal to crack. Underbead cracking is most common with steels having a carbon content in excess of 0.30%, but it often occurs when low carbon steels are welded in ambient temperatures below 32° F without preheating to remove moisture.Underbead cracks are not visible from the surface of the joint and can be detected only by X-ray or magnetic particle inspection. Using hydrogen electrodes that have been stored properly to keep them dry will eliminate most underbead cracking.Slag inclusion refers to entrapment of slag within the weld metal (Figure 48). The inclusions arise mainly from failure to clean the weld deposit before the next pass is made. Too slow a travel speed also causes slag inclusions, because the volume of slag becomes too large to be floated out of the puddle of molten metal.
Figure 48 - Slag inclusions arise from failure to clean the weld deposit.Porosity usually is caused by the oxidation of foreign matter such as grease or paint that has been left on the joint (Figure 49). The foreign matter is vaporized by the molten metal and forms gas pockets in the weld deposit. Porosity can also be caused by excessive moisture in any type of electrode coating or by excessive magnetic arc blow. Careful cleaning of joints prior to welding, using dry electrodes and controlling arc blow will prevent porosity.
Figure 49 - Porosity is caused by oxidation of foreign matter on the joint.Cold lap is caused by improper fusion of the weld metal to the parent metal, arising from insufficient heating of the joint members (Figure 50). Instead of bonding to the parent metal, the weld deposit lies on top of it, giving rise to a definite crack or void. Cold lap can be prevented by proper manipulation of the electrode to bring all parts of the joint up to a molten state. A slightly longer arc or slightly higher welding current will also help to combat the problem of cold lap by increasing the amount of heat liberated at the joint.
Figure 50 - Cold lap is improper fusion of parent metal and
Cracks often develop in components that are used for unusually severe applications or are approaching the limit of their service life. Defective welds, on the other hand, are usually caused by careless welders who fail to use good welding techniques. The most common defects in welds are: underbead cracks, slag inclusions, porosity (gas holes and pockets), cold lap, undercut and slugged welds. The procedures for repairing cracks and replacing defective welds are similar.
Figure 47 - Underbead cracks are caused by hydrogen gas being absorbed by the seal.Underbead cracks occur between the weld deposit and the parent metal or in the heat affected zone under the weld deposit in carbon steels (Figure 47). The cracks are usually caused by hydrogen gas being absorbed by the parent metal and being released as the metal cools. The gas builds up pressure in the minute voids of the parent metal and forces the metal to crack. Underbead cracking is most common with steels having a carbon content in excess of 0.30%, but it often occurs when low carbon steels are welded in ambient temperatures below 32° F without preheating to remove moisture.Underbead cracks are not visible from the surface of the joint and can be detected only by X-ray or magnetic particle inspection. Using hydrogen electrodes that have been stored properly to keep them dry will eliminate most underbead cracking.Slag inclusion refers to entrapment of slag within the weld metal (Figure 48). The inclusions arise mainly from failure to clean the weld deposit before the next pass is made. Too slow a travel speed also causes slag inclusions, because the volume of slag becomes too large to be floated out of the puddle of molten metal.
Figure 48 - Slag inclusions arise from failure to clean the weld deposit.Porosity usually is caused by the oxidation of foreign matter such as grease or paint that has been left on the joint (Figure 49). The foreign matter is vaporized by the molten metal and forms gas pockets in the weld deposit. Porosity can also be caused by excessive moisture in any type of electrode coating or by excessive magnetic arc blow. Careful cleaning of joints prior to welding, using dry electrodes and controlling arc blow will prevent porosity.
Figure 49 - Porosity is caused by oxidation of foreign matter on the joint.Cold lap is caused by improper fusion of the weld metal to the parent metal, arising from insufficient heating of the joint members (Figure 50). Instead of bonding to the parent metal, the weld deposit lies on top of it, giving rise to a definite crack or void. Cold lap can be prevented by proper manipulation of the electrode to bring all parts of the joint up to a molten state. A slightly longer arc or slightly higher welding current will also help to combat the problem of cold lap by increasing the amount of heat liberated at the joint.
Figure 50 - Cold lap is improper fusion of parent metal and
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9Y-4056
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Cat SIS web machinery list:
Parts pulley Caterpillar catalog:
1077750
PULLEY
214B, 3114, 3116, 3126, 3126B, 550, 570, 574, 580, 613C II, 950F, 950F II, 953B, 953C, 960F, 962G, 963B, AP-1000, AP-1050, BG-2455C, BG-245C, CB-434, CB-634C, CB-634D, CP-563, CS-531C, CS-533C, CS-563...
214B, 3114, 3116, 3126, 3126B, 550, 570, 574, 580, 613C II, 950F, 950F II, 953B, 953C, 960F, 962G, 963B, AP-1000, AP-1050, BG-2455C, BG-245C, CB-434, CB-634C, CB-634D, CP-563, CS-531C, CS-533C, CS-563...
1154204
PULLEY AS-IDLER
120H, 120H ES, 120H NA, 135H, 135H NA, 30/30, 3114, 3116, 3126, 3126B, 3126E, 320B, 322B L, 322B LN, 322C, 322C FM, 325B L, 35, 446, 446B, 446D, 45, 525B, 533, 535B, 539, 543, 55, 550, 561M, 570, 574,...
120H, 120H ES, 120H NA, 135H, 135H NA, 30/30, 3114, 3116, 3126, 3126B, 3126E, 320B, 322B L, 322B LN, 322C, 322C FM, 325B L, 35, 446, 446B, 446D, 45, 525B, 533, 535B, 539, 543, 55, 550, 561M, 570, 574,...
7W3773
PULLEY-CRANKSHAFT
120H, 120H ES, 120H NA, 135H, 135H NA, 214B, 30/30, 3114, 3116, 3126, 3126B, 3126E, 320 L, 320B, 322B L, 322B LN, 322C, 322C FM, 325, 325B, 325B L, 35, 446B, 446D, 45, 525B, 533, 535B, 539, 543, 55, 5...
120H, 120H ES, 120H NA, 135H, 135H NA, 214B, 30/30, 3114, 3116, 3126, 3126B, 3126E, 320 L, 320B, 322B L, 322B LN, 322C, 322C FM, 325, 325B, 325B L, 35, 446B, 446D, 45, 525B, 533, 535B, 539, 543, 55, 5...
7C7890
PULLEY
3114, 3116, 3126, 533, 543, 918F, 924F, 950G, AP-1000, AP-1000B, AP-1050, AP-1055B, BG-2455C, BG-245C, CB-434, CB-634C, CB-634D, CP-563, CS-531C, CS-533C, CS-563C, CS-573C, CS-583C, D250D, IT12B, IT24...
3114, 3116, 3126, 533, 543, 918F, 924F, 950G, AP-1000, AP-1000B, AP-1050, AP-1055B, BG-2455C, BG-245C, CB-434, CB-634C, CB-634D, CP-563, CS-531C, CS-533C, CS-563C, CS-573C, CS-583C, D250D, IT12B, IT24...
8L8867
PULLEY
3116, 3126, 3304, 3304B, 3306, 3306B, 330B L, 637D, CB-534, D250B, D250E, D250E II, D25C, D25D, D300B, D300D, D300E, D300E II, D30C, D350C, D35C, G3304B, G3306B
3116, 3126, 3304, 3304B, 3306, 3306B, 330B L, 637D, CB-534, D250B, D250E, D250E II, D25C, D25D, D300B, D300D, D300E, D300E II, D30C, D350C, D35C, G3304B, G3306B
1154237
PULLEY-IDLER
120H, 120H ES, 120H NA, 135H, 135H NA, 3114, 3116, 3126, 3126B, 3126E, 320B, 322B L, 322B LN, 322C, 322C FM, 325B L, 35, 446, 446B, 446D, 45, 525B, 535B, 539, 550, 561M, 570, 574, 580, 613C II, 814F I...
120H, 120H ES, 120H NA, 135H, 135H NA, 3114, 3116, 3126, 3126B, 3126E, 320B, 322B L, 322B LN, 322C, 322C FM, 325B L, 35, 446, 446B, 446D, 45, 525B, 535B, 539, 550, 561M, 570, 574, 580, 613C II, 814F I...
7W3780
PULLEY
120H, 120H ES, 120H NA, 135H, 135H NA, 214B, 30/30, 3116, 3126, 3126B, 3126E, 320 L, 320B, 322B, 322B L, 322B LN, 322C, 322C FM, 325, 325B, 325B L, 35, 446B, 446D, 45, 525B, 535B, 539, 55, 550, 561M, ...
120H, 120H ES, 120H NA, 135H, 135H NA, 214B, 30/30, 3116, 3126, 3126B, 3126E, 320 L, 320B, 322B, 322B L, 322B LN, 322C, 322C FM, 325, 325B, 325B L, 35, 446B, 446D, 45, 525B, 535B, 539, 55, 550, 561M, ...
1247792
PULLEY AS-IDLER
120K, 120K 2, 12K, 140G, 140K, 140K 2, 140M, 14M, 160K, 160M, 3116, 3126, 3126B, 3126E, 777C, 777D, 814F, 815F, 824C, 953C, 963C, 966G II, 972G II, 980G, 980G II, 980H, AP-1055D, AP-755, BG-2455D, BG-...
120K, 120K 2, 12K, 140G, 140K, 140K 2, 140M, 14M, 160K, 160M, 3116, 3126, 3126B, 3126E, 777C, 777D, 814F, 815F, 824C, 953C, 963C, 966G II, 972G II, 980G, 980G II, 980H, AP-1055D, AP-755, BG-2455D, BG-...
1445611
PULLEY AS-IDLER
120H, 12H, 135H, 140H, 143H, 14H, 160H, 163H, 16H, 3116, 3126, 3126B, 3126E, 3512C, 3516B, 525C, 535C, 545C, 613G, 725, 730, 789D, 793D, 797B, 815B, 844, 854G, 938G II, 938H, 950G II, 950H, 962G II, 9...
120H, 12H, 135H, 140H, 143H, 14H, 160H, 163H, 16H, 3116, 3126, 3126B, 3126E, 3512C, 3516B, 525C, 535C, 545C, 613G, 725, 730, 789D, 793D, 797B, 815B, 844, 854G, 938G II, 938H, 950G II, 950H, 962G II, 9...
4N8225
PULLEY-ALTERNATOR
245, 245B, 245D, 3116, 3406, 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3412E, 375, 375 L, 5080, 583R, 587R, 589, 621, 621B, 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G, 631...
245, 245B, 245D, 3116, 3406, 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3412E, 375, 375 L, 5080, 583R, 587R, 589, 621, 621B, 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G, 631...
1173437
PULLEY
120H, 120K, 12K, 135H, 140K, 140K 2, 160K, 3116, 3126, 3126B, 3126E, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325C, 325C FM, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 328D LCR, 329...
120H, 120K, 12K, 135H, 140K, 140K 2, 160K, 3116, 3126, 3126B, 3126E, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325C, 325C FM, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 328D LCR, 329...
6N1186
PULLEY
24H, 5110B, 992, 992C, 992D, D10N, D10R, D9L
24H, 5110B, 992, 992C, 992D, D10N, D10R, D9L
2560630
PULLEY GP-FAN DRIVE
3508, 3508B, 3512, 3512B, 3516, 3516B
3508, 3508B, 3512, 3512B, 3516, 3516B
7W5257
PULLEY GP-FAN DRIVE
3508, 3508B, 3512, 3512B, 3516, 3516B
3508, 3508B, 3512, 3512B, 3516, 3516B
2539276
PULLEY GP-FAN DRIVE
3508, 3508B, 3512, 3512B, 3516, 3516B
3508, 3508B, 3512, 3512B, 3516, 3516B
2697201
PULLEY GP-FAN DRIVE
3508, 3508B, 3512, 3512B, 3516, 3516B
3508, 3508B, 3512, 3512B, 3516, 3516B
1356058
PULLEY GP-ALTERNATOR
65E, 75E
65E, 75E
1023782
PULLEY GP-FAN & ALT DRIVE
375, 375 L, 5080
375, 375 L, 5080
7N1143
PULLEY GP
611, 615, 615C
611, 615, 615C