Doosan G643 LP Engine — DOOSAN G643 LP Engine Service Manual PDF Download (EN)

High Mounted Fan Bracket Removal Start By: a . Remove fan belt. b . Remove wires from alternator. 1 . Remove (5) Bolts from bracket. 2 . Remove the bracket assembly. Note : For installation of the fan bracket, reverse the removal steps and torque mounting bolts to 50 N·m (37 lb·ft.). Coolant Pump Removal Remove or Disconnect Start By: a . Draining coolant from radiator. b . Remove by-pass hose and c . LP hose from pump. d . Remove fan belt. 1 . Remove bolts from pump pulley. 2 . Remove pulley from pump. 3 . Remove bolts from pump. G643 (E) Service Manual Chapter 3. Engine Mechanical System 62