LEVER 3P7551 - Caterpillar

Wheel Loader: AllIntroduction
This document provides estimated maintenance recommendations of parent and wear plates for the slag application. The information in this document is for slag application in which typical slag is less than 595° C (1100° F), and a backdrag technique is used. The overall service life of the bucket can be decreased if the bucket is used in applications where temperatures exceed 595° C (1100° F), Improper backdrag technique is used, or bucket wear plates are improperly maintained.It is recommended that all other areas on the bucket not shown in this document be inspected weekly. This is to ensure that no weld cracks or parent material cracks are present that could lead to further bucket failure. The inspection is also to ensure no excessive wear on bottom, rear wear plates, base edge, or weld-on serrated edge segments is present. If bucket is used in slag conditions hotter than specified, more frequent inspections and maintenance will be required.990
Illustration 1 g01907433
265-8300 Bucket (1) Side bar (2) Moldboard (3) Side Plate (5) Outer Side Wear Plate (6) Internal Shell Rib (7) Internal Shell Gusset (8) Corner Reinforcements (9) Segment
Illustration 2 g01908633
265-8300 Bucket (10) Edge - Base (11) Paddle Plate (12) Heel Plate - LH (13) Heel Plate - RH (14) Bottom, Rear Wear Bar (15) Plate - Wear (16) Plate - Wear
Illustration 3 g01909134
294-8900 Bucket 294-8822 Bucket (1) Side bar (2) Moldboard (3) Side Plate (4) Side Bar Protector (5) Outer Side Wear Plate (6) Internal Shell Rib (7) Internal Shell Gusset (8) Corner Reinforcements (9) Segment
Illustration 4 g01909174
294-8900 Bucket 294-8822 Bucket (10) Edge - Base (11) Paddle Plate (12) Heel Plate - LH (13) Heel Plate - RH (14) Bottom, Rear Wear Bar (15) Plate - Wear (16) Plate - Wear (19) Adapter (20) Tip
Illustration 5 g03599503
329-1540 Bucket (1) Side bar (2) Moldboard (3) Side Plate (5) Outer Side Wear Plate (8) Corner Reinforcements (9) Segment
Illustration 6 g03599942
294-8822 Bucket (10) Edge - Base (11) Paddle Plate (12) Heel Plate - LH (13) Heel Plate - RH (15) Plate - Wear (16) Plate - Wear (19) Adapter (20) TipTable 1 provides Inspection frequencies for different parts of the bucket. Also provided are minimum thicknesses of common wear parts. The intent is for the parts to be replaced at the minimum thickness to prevent welds from being worn away and causing structural cracking.
Table 1
990 Slag Bucket Service/Maintenance Recommendations    
Number    Description    Inspection Frequency    Minimum Thickness    
(1)     Side Bar     Weekly    
25 mm (0.98 inch)    
(2)     Moldboard     Weekly     (1)    
(3)     Side Plate     Weekly     (1)    
(4)     Side Bar Protector     Weekly    
15 mm (0.59 inch)    
(5)     Outer Side Wear Plate     Weekly