PLATE 5036911 - Caterpillar

STEER LOADER
A19 (ADA) AUGER;
216 (4NZ1-UP),
226 (5FZ1-UP),
228 (6BZ1-UP),
236 (4YZ1-UP),
246 (5SZ1-UP),
248 (6LZ1-UP),
252 (FDG1-UP),
262 (CED1-UP) SKID STEER LOADER;
267 (CMP1-UP),
277 (CNC1-UP) MULTI-TERRAIN LOADERTHIS TECHNICAL INFORMATION BULLETIN (TIB) REPLACES THE NOVEMBER 14, 2001 AUGER TIB, "FAILURE OF THE HUB FOR THE 161-5856 PLANETARY GP". DESTROY THE NOVEMBER 14, 2001 TIB. IT WILL NOT APPEAR IN THE SEMI-ANNUAL INDEX.Problem:
Reports have been received of cracks developing in the hub for the 161-5856 Planetary Gp. The hub is not a serviceable part. Failure of the hub requires replacement of the 161-5856 Planetary Gp. Solution:
Investigations have revealed that cracking of the hub is resulting from heavy side-to-side loading caused by abusive application and/or improper operation. This is evidenced by brinell markings on the rollers and races on both the inboard and outboard bearings.Side-to-side loading and/or bending loads are created when the auger is exposed to horizontal forces during operation. Horizontal loads result from abusive application and/or improper operation such as machine travel or machine movement while the auger bit is engaged or while the auger contacts the mounting bracket during operation. Under these conditions, the drive shaft, the auger bit, the extension group, the components of the drive group (such as the bearings and the hub), and the frame are exposed to excessive stresses that cause the components to fail. THE FAILURE OF COMPONENTS THAT RESULT FROM IMPROPER OPERATION OR ABUSE IS NOT WARRANTABLE. IMPROPER OPERATION OF THE AUGER AND ABUSE OF THE AUGER ARE NOT WITHIN THE CONTROL AND RESPONSIBILITY OF CATERPILLAR. CATERPILLAR IS COMMITTED TO PROVIDING SUPERIOR PRODUCTS AND CUSTOMER SUPPORT. CATERPILLAR HAS SPENT CONSIDERABLE EFFORTS AND RESOURCES IN ATTEMPTS TO MINIMIZE THE EFFECTS OF IMPROPER OPERATION AND ABUSE OF AUGERS. CATERPILLAR CONTINUES TO EMPHASIZE THE NEED FOR PROPER OPERATION THROUGH PUBLICATIONS AND DECALS THAT OUTLINE THE CORRECT INSTALLATION, OPERATION, AND MAINTENANCE OF AUGERS.The "DO'S" for correct operation of augers:* Select the appropriate auger, the appropriate auger bit, and the appropriate bit teeth for the dig application. The soil type and soil condition dictate auger bit size, type of teeth, and performance.* Ensure that the auger bit, the bit teeth, and the pilot point are in good operating condition.* Ensure that the auger is completely away from (not touching) the mounting bracket before digging. Raise the auger and tilt the auger forward until the auger is free to swing forward, backward, and sideways.* Ensure that the auger is in a true vertical position upon beginning to dig and that a true vertical position is maintained