The chassis, loader arms, excavator end, cab, axles, transmission and engine on the JCB 3CX backhoe loader are all designed and built by JCB for optimal efficiency and reliability. Even the hydraulic cylinders are friction welded for extra strength., and JCB precision machining provides high tolerances and accurate location of pins and bushes.
The JCB 3CX backhoe loader chassis, boom, loader arms and other structural components are all subjected to prolonged high-stress loading, and the transmission is tested over thousands of cycles.
JCB uses stress-relieved fabrication for the 3CX backhoe boom, and heats it to over 1202˚F (650˚C), to double the expected boom life.
Rear stabilizers are equipped with twin directional hose-burst check valves (HBCVs), which prevent the stabilizer legs from moving during operation or falling while traveling, even if a hose fails.
Boom and dipper hoses are inside the rear structures of the machine, and kingpost hoses are enclosed in a flexible, robust conduit to keep them from snagging or sustaining damage. Similarly, the stabilizer cylinders are protected from damage by standard-fit guards.