CLAMP 2147457 - Caterpillar

All Machines With Diagonal-Split Hydraulic FlangesDescription of Change: Hardened flat washers are now used on the bolts that hold the diagonal-split hydraulic flanges. The hardened flat washers give more contact area if there is too much diagonal gap. They also prevent damage to the flanges if the bolts are tightened too tight. When split flanges are use on both sides of a spacer plate, at a hose-to-hose connection for example, hardened flat washers must also be used under the nuts for the through bolts.
Diagonal-split hydraulic flange.Adaptable To: All diagonal-split hydraulic flanges as shown in the chart that follows:
Always check bolt length before assembly with hardened flat washers, especially in through bolt and nut applications.