3456873 SOFTWARE GP-MACHINE Caterpillar parts
308D
Rating:
Alternative (cross code) number:
CA3456873
345-6873
3456873
CA3456873
345-6873
3456873
MINI HYD EXCAVATOR,
Compatible equipment models: 3456873:
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Information:
Procedure to Check for Taper
Illustration 15 g01397503
Taking the measurement on one side of the journalMeasure the diameter of the rod journal at TDC next to each fillet but not on the fillets. Measurements must be taken on both sides of the journal. Refer to Illustration 15. The difference of the two measurements may not exceed the dimensions of taper.Procedure to Check for Wear of the Thrust Face
Illustration 16 g01397566
Measuring the wear of the thrust face with a micrometerMeasure the distance between the thrust surfaces. Use an inside micrometer. Refer to Illustration 16. The measurement between the thrust faces must be between the maximum and the minimum reusable specifications.Note: When the crankshaft is installed, check for the correct crankshaft end play. Refer to the appropriate Reuse and Salvage Guideline.Procedure to Check Radius with Correct Gauge
Follow this procedure to check the fillet of the journal after the crankshaft has been ground.
Use a decimal radius gauge with a range of 2 to 20 mm (0.095 to 0.75 inch). Compare the profile of the radius gauge with the profile of the fillet. If the radius gauge matches the fillet, there will be no space between the two. Refer to Illustration 18. A radius gauge in fractions can be used after the fractions are accurately converted to the decimal or metric equivalents.Radius gauges are available from several companies.Starrett
www.starrett.com
Phone: (978) 249-3551Fax: (978) 249-8495
Put the correct size of radius gauge into the fillet. The radius gauge must come into contact with the center of the radius.
Illustration 17 g01398955
Measuring the radius of the fillet
Illustration 18 g01398957
The gauge is the correct size because the entire gauge is in contact with the radius of the fillet.
Illustration 19 g01398960
The radius is too large. The nose of the gauge is the only part of the gauge that contacts the fillet.
Illustration 20 g01398982
The radius is too small. The gauge is contacting the radius at the shoulders of the gauge.
The radius of the crankshaft must meet the specifications in Table5 in order to be reused.Note: Table 5 contains dimensions of radii before the peening operation. When possible, measure the fillets before the peening operation. Refer to Reuse and Salvage Guideline, SEBF8039, "Crankshaft Visual Inspection and Magnetic Particle Inspection" for information.Procedure to Check the Hardness of the Journal
The hardness of the journals should be checked before any polishing operation. If a journal shows signs of high heat or grinding check the hardness of the journal. A non-destructive Test (NDT) method such as using a Equotip hardness testing tool can be used. Follow the recommendations of the manufacture for the use of the hardness tester.Refer to Table 5 for the correct hardness specification. Note: Do not use a sclerometer to test the hardness of the crankshaft as it may damage the journal surfaces.Note: A soft spot may be found on a journal. Check both sides of the soft area if this occurs. If the hardness of the journal is within the specifications on both sides of the soft area then the hardness of the journal is acceptable.Procedure to Check Surface
Illustration 15 g01397503
Taking the measurement on one side of the journalMeasure the diameter of the rod journal at TDC next to each fillet but not on the fillets. Measurements must be taken on both sides of the journal. Refer to Illustration 15. The difference of the two measurements may not exceed the dimensions of taper.Procedure to Check for Wear of the Thrust Face
Illustration 16 g01397566
Measuring the wear of the thrust face with a micrometerMeasure the distance between the thrust surfaces. Use an inside micrometer. Refer to Illustration 16. The measurement between the thrust faces must be between the maximum and the minimum reusable specifications.Note: When the crankshaft is installed, check for the correct crankshaft end play. Refer to the appropriate Reuse and Salvage Guideline.Procedure to Check Radius with Correct Gauge
Follow this procedure to check the fillet of the journal after the crankshaft has been ground.
Use a decimal radius gauge with a range of 2 to 20 mm (0.095 to 0.75 inch). Compare the profile of the radius gauge with the profile of the fillet. If the radius gauge matches the fillet, there will be no space between the two. Refer to Illustration 18. A radius gauge in fractions can be used after the fractions are accurately converted to the decimal or metric equivalents.Radius gauges are available from several companies.Starrett
www.starrett.com
Phone: (978) 249-3551Fax: (978) 249-8495
Put the correct size of radius gauge into the fillet. The radius gauge must come into contact with the center of the radius.
Illustration 17 g01398955
Measuring the radius of the fillet
Illustration 18 g01398957
The gauge is the correct size because the entire gauge is in contact with the radius of the fillet.
Illustration 19 g01398960
The radius is too large. The nose of the gauge is the only part of the gauge that contacts the fillet.
Illustration 20 g01398982
The radius is too small. The gauge is contacting the radius at the shoulders of the gauge.
The radius of the crankshaft must meet the specifications in Table5 in order to be reused.Note: Table 5 contains dimensions of radii before the peening operation. When possible, measure the fillets before the peening operation. Refer to Reuse and Salvage Guideline, SEBF8039, "Crankshaft Visual Inspection and Magnetic Particle Inspection" for information.Procedure to Check the Hardness of the Journal
The hardness of the journals should be checked before any polishing operation. If a journal shows signs of high heat or grinding check the hardness of the journal. A non-destructive Test (NDT) method such as using a Equotip hardness testing tool can be used. Follow the recommendations of the manufacture for the use of the hardness tester.Refer to Table 5 for the correct hardness specification. Note: Do not use a sclerometer to test the hardness of the crankshaft as it may damage the journal surfaces.Note: A soft spot may be found on a journal. Check both sides of the soft area if this occurs. If the hardness of the journal is within the specifications on both sides of the soft area then the hardness of the journal is acceptable.Procedure to Check Surface
Caterpillar parts catalog:
Parts software Caterpillar catalog:
3668693
SOFTWARE GP-MONITOR
308D, 324D FM, 324D FM LL, 324D L, 325D FM, 325D FM LL, 325D L, 325D MH, 329D L, 330D, 330D FM, 330D L, 330D MH, 336D L, 345C, 345C L, 345C MH, 345D L, 349D L, W345C MH
308D, 324D FM, 324D FM LL, 324D L, 325D FM, 325D FM LL, 325D L, 325D MH, 329D L, 330D, 330D FM, 330D L, 330D MH, 336D L, 345C, 345C L, 345C MH, 345D L, 349D L, W345C MH
4458193
SOFTWARE GP-MACHINE
315D L
315D L
3767248
SOFTWARE GP-ELECTRONIC
311D LRR, 311F LRR, 312D, 312D L, 312D2, 312E, 312E L, 313D, 314D LCR, 314E LCR, 315D L, 318D2 L, 318E L, 319D L, 319D LN, 320D, 320D GC, 320D L, 320D LRR, 320D RR, 320D2 L, 320E L, 320E LN, 320E LRR,...
311D LRR, 311F LRR, 312D, 312D L, 312D2, 312E, 312E L, 313D, 314D LCR, 314E LCR, 315D L, 318D2 L, 318E L, 319D L, 319D LN, 320D, 320D GC, 320D L, 320D LRR, 320D RR, 320D2 L, 320E L, 320E LN, 320E LRR,...
4426441
SOFTWARE GP-COMMUNICATION
120K, 120K 2, 120M, 120M 2, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 16M, 24M, 311D LRR, 311F LRR, 312D, 312D L, ...
120K, 120K 2, 120M, 120M 2, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 16M, 24M, 311D LRR, 311F LRR, 312D, 312D L, ...
4372759
SOFTWARE GP-COMMUNICATION
120K, 120K 2, 120M 2, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 16M, 24M, 312D, 313D, 315D L, 318D2 L, 320D, 320D ...
120K, 120K 2, 120M 2, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 16M, 24M, 312D, 313D, 315D L, 318D2 L, 320D, 320D ...
3863454
SOFTWARE GP-MONITOR
308D, 312D, 312D2, 312D2 GC, 313D, 313D2, 313D2 LGP, 314D CR, 314D LCR, 315D L, 318D L, 318D2 L, 320D, 320D FM, 320D GC, 320D2, 321D LCR, 323D L, 324D, 324D L, 324D LN, 325D, 325D L, 326D L, 328D LCR,...
308D, 312D, 312D2, 312D2 GC, 313D, 313D2, 313D2 LGP, 314D CR, 314D LCR, 315D L, 318D L, 318D2 L, 320D, 320D FM, 320D GC, 320D2, 321D LCR, 323D L, 324D, 324D L, 324D LN, 325D, 325D L, 326D L, 328D LCR,...