VALVE GRINDING 6V2246 - Caterpillar

Engine:
3512C (S/N: R1T1-UP)
Petroleum Engine:
3512C (S/N: R1S1-UP)
Pumper:
SPF343C (S/N: RTX1-UP)
Description of Change: The new air cleaner gp has increased wall thickness to maintain structural integrity.Adaptable To: The 421-3031 Air Cleaner Gp replaces the 254-3566 Air Cleaner Gp on the engines that are listed above.The 421-3031 Air Cleaner Gp is adaptable to the engines back to first production. Effectivity is listed in Table 1.
Table 1
Effective Serial Numbers    
S/N:R1S01251-UP    
S/N:R1T00127-UP    
S/N:RTX00895-UP    The new parts required for installation are listed in Table 2.
Table 2
Qty    New Parts    
2     8T-4990 Hose Clamp    
1     421-3031 Air Cleaner Gp    
Illustration 1 g03366438
(1) 8T-4990 Hose Clamp (2) 421-3031 Air Cleaner Gp Tighten the hose clamps ... 11 1 N m (97 9 lb in)