CYLINDER AS 0R1843 - Caterpillar

Problem
Some couplers may show signs of excessive wear during early hours of use.Solution
Illustration 1 g01339177
Typical example of a hydraulic dedicated wedge lock coupler (A) Wedge (B) Bolt
Illustration 2 g01339180
Typical example of a manual dedicated wedge lock coupler (A) Wedge (B) BoltCheck the torque for the bolts (B) that secure the wedge (A). If the bolts are not tightened to the proper specification, the coupler may not fit correctly. This will lead to accelerated wear of the coupler. Refer to table 1 for the torque specifications.
Table 1
Part Number of Coupler    Torque Specification for the Bolts on the Wedge    Coupler Type    Serial Number Prefix    
160-8301     425 50 N m (313 37 lb ft)     Conversion Kit        
172-8492    
425 50 N m (313 37 lb ft)     Conversion Kit        
198-7902    
425 50 N m (313 37 lb ft)     Conversion Kit        
273-8972    
425 50 N m (313 37 lb ft)     Conversion Kit        
172-8409    
425 50 N m (313 37 lb ft)     Hydraulic     CCR    
172-8479    
425 50 N m (313 37 lb ft)     Hydraulic     BBM    
172-8480    
425 50 N m (313 37 lb ft)     Hydraulic     BCE    
172-8481    
425 50 N m (313 37 lb ft)     Hydraulic     BCT    
198-4430    
425 50 N m (313 37 lb ft)     Hydraulic     FDM    
198-7903    
425 50 N m (313 37 lb ft)     Hydraulic     FDZ    
224-9650    
425 50 N m (313 37 lb ft)     Hydraulic     BCT    
253-9551    
425 50 N m (313 37 lb ft)     Hydraulic     7XW (1)    
258-2334    
425 50 N m (313 37 lb ft)     Hydraulic     7XW (1)    
267-8522    
425 50 N m (313 37 lb ft)     Hydraulic     E2B    
277-5472    
425 50 N m (313 37 lb ft)     Hydraulic     7XW (1)    
283-1627    
425 50 N m (313 37 lb ft)     Hydraulic     D1G    
283-1628    
425 50 N m (313 37 lb ft)     Hydraulic     D1H    
285-5858    
425 50 N m (313 37 lb ft)     Hydraulic     FDZ    
155-4057    
460 60 N m (339 44 lb