WARNING Lay the motor horizontally on a work bench and unscrew the governor assembly. Never attempt to disassemble a Model 599A1 Impact Wrench without a hoist, block and tackle, or other lifting device. The NOTICE complete Impact Wrench and its major assemblies are too heavy The Rotor (29) and Governor (37) have left-hand threads;...
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Always press on the outer ring of a ball-type bearing when Never attempt to assemble a Model 599A1 Impact Wrench pressing the bearing into a bearing recess. without a hoist, block and tackle or other lifting device. The...
Troubleshooting Guide Trouble Probable Cause Solution Low power Worn or broken Vanes Replace complete set of Vanes. Worn or broken Cylinder and/or scored End Examine the Cylinder and replace it if it is worn or broken or if the bore is Plates scored or wavy.