Workshop Manual 450 -3 450LC -3 470H -3 470LCH -3 500LC -3 520LCH -3 Hydraulic Excavator Service Manual consists of the following separate Part No; Technical Manual (Operational Principle) : Vol. No.TO1J1-E Technical Manual (Troubleshooting) : Vol. No.TT1J1-E Workshop Manual : Vol. No.W1J1-E PART NO. W1J1-E-00