BUSHING 0010312 - Caterpillar

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Dealer Service Tools has released five new wrenches for hose assemblies that use snap to connect couplings. Snap to connect couplings are used on the some Caterpillar machines and on other manufacturer's products. The wrenches allow the technician to remove the couplings. The following charts shows each wrench part number and the respective radius for the opening in the wrench.
Table 1
Wrenches for Snap to Connect Couplings    
Part No.     Description     Radius     Hose    
279-1218     Wrench - Coupling ( (Snap to Connect))    
5.15 mm (0.2028 inch)     -6    
279-1219     Wrench - Coupling ( (Snap to Connect,))    
7.05 mm (0.2776 inch)     -8    
279-1220     Wrench - Coupling ( (Snap to Connect))    
8.70 mm (0.3425 inch)     -10    
279-1221     Wrench - Coupling ( (Snap to Connect))    
10.95 mm (0.4311 inch)     -12    
279-1222     Wrench - Coupling ( (Snap to Connect))    
13.90 mm (0.5472 inch)     -16