GLASS-FRONT 3311148 - Caterpillar

TECHNICAL INFORMATION BULLETIN March 30, 2005
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)
Component Code(s) 6129SUBJECT: 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
COPYRIGHT 2005 CATERPILLAR
ALL RIGHTS RESERVED