CONFIDENTIAL TIBU4500-00
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TECHNICAL INFORMATION BULLETIN |
March 30, 2005 |
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BACKHOE LOADERS |
416D (BFP1-Up, CKN1-Up, CXP1-Up) 420D (C2C1-Up, C4T1-Up, C6D1-Up, FDP1-Up, SBL1-Up) 420D IT (BLN1-Up 430D (BNK1-Up, C3J1-Up, C5B1-Up, C7E1-Up, C8A1-Up, C9P1-Up) 430D IT (BML1-Up) |
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Component Code(s) 6129 |
SUBJECT: The Quick Coupler Will Not Fit Buckets or worktools ON CERTAIN BACKHOE LOADERS
PROBLEM:
Quick Coupler Gp (222-7464) does not fit some buckets or work tools. The hook may bind before the pin can be locked into the bucket and the coupler.
SOLUTION:
Check the dimensions of the hook and inspect the surface of the hook?s flat surface. See figure 1 for the proper dimensions of the hook and block of the Pin Lock Coulper. Remove material from the specified locations shown in figure 1 if the overall width is less than 118mm (4.65in).
Inspect the surface finish of the hook?s flat surface. The surface should have a machined finish. See figure 2 for a example of the correct surface finish. In some instances a finishing operation may be required if the surface finish is similar to figure 3.
Figure 2 Figure 3
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