Product Code:SAE J1177 Title:Hydraulic Excavator Operator Controls Issuing Committee:Mtc C5, Excavators Scope:This standard covers mobile hydraulic excavator controls and the specific arrangement and direction of motion for the primary controls.This standard applies to mobile hydraulic excavators as described in ISO 7135 - Earthmoving Machinery - Hydraulic excavators - Terminology and commercial specifications, and ISO 6165- Earthmoving Machinery - Basic Types - Vocabulary. PurposeThis standard is intended as a guide for designing uniform two lever type operating controls for mobile hydraulic excavators, either wheel mounted or crawler mounted on independently reversible tracks.