BRACKET 2519821 - Caterpillar

Illustration 1 g01227575
(1) 253-0858 Check Valve Body (2) 9M-5590 Ball (3) 253-0859 Check Valve Stop (3) Check valve stop Torque ... 13 3 N m (115 27 lb in)
Table 1
Effective Serial Numbers    
S/N: 4ZS00501-UP    
S/N:BEN00283-UP    
S/N:BKE00277-UP    
S/N:BLB00258-UP    Maintenance Recommendations
The check valve assembly must be cleaned and inspected at each 5000 hour maintenance interval. If deposits build up in applications that use bio-gas, the maintenance interval must be reduced. Monitor the position of the needle valves at the maintenance intervals. If the needle valves must be opened for 7 to 10 turns, this could be an indication of a worn check valve. The check valve assembly can be cleaned and rebuilt with new components.Note: Usually, the body of the check valve assembly does not need to be replaced. If the performance of the check valve assembly is still poor after replacing the other parts, the body may need to be replaced.