COVER 1978112 - Caterpillar

Illustration 1 g01675076
An improved 213-9100 Alarm Gp is now used on the machines that are listed above. The improved 213-9100 Alarm Gp prevents the entry of moisture in the housing for the alarm. The improvement also provides better retention of the speaker in the housing for the alarm. The permanent change is effective with the serial numbers that are listed in Table 1.
Table 1
The New 213-9100 Alarm Gp is Effective with the following Serial Numbers:    
Model    Effective Serial Numbers    
613C     S/N:8LJ3478-UP    
613C     S/N:KEH353-UP    
613G     S/N:ESB113-UP    
621G     S/N:DBB642-UP    
623G     S/N:DBC504-UP    
627G     S/N:DBD898-UP    
631G     S/N:DFA365-UP    
637G     S/N:DFJ393-UP    
657G     S/N:W1B135-UP    
657G     S/N:W1C274-UP    
770     S/N:BZZ407-UP    
770     S/N:M7W104-UP    
772     S/N:RLB492-UP    
773F     S/N:EED886-UP    
775F     S/N:DLS838-UP    
777F     S/N:JRP1618-UP    
777F     S/N:JXP108-UP    
784C     S/N:2PZ107-UP    
785C     S/N:APX1568-UP    
789C     S/N:2BW1427-UP    
793D     S/N:FDB915-UP    
797B     S/N:JSM399-UP    
12H     S/N:4ER1329-UP    
12M     S/N:B9F453-UP    
12M     S/N:B9R132-UP    
14M     S/N:B9J754-UP    
16M     S/N:B9H481-UP    
24M     S/N:B9K298-UP    
120H     S/N:5FM6069-UP    
120M     S/N:B9C363-UP    
120M     S/N:B9W152-UP    
140H     S/N:5HM3912-UP    
140M     S/N:B9D1638-UP    
140M     S/N:B9M570-UP    
160H     S/N:2FM1110-UP    
160M     S/N:B9E291-UP    
160M     S/N:B9L385-UP