Installation - Hitachi 4HK1 Workshop Manual

installation

1. Cylinder head cover installation
1. Align the head cover gasket to the cylinder head
cover.
2. Install the cylinder head cover to the lower cover.
tightening torque： 18 N・m { 1.8 kgf・m / 13 lb・ft }
Note：
・ Referring to the tightening order in the
diagram, temporarily tighten all bolts and then
completely tighten them.
1. Cylinder head cover
2. Gasket
3. Lower cover
2. Ventilation hose connect
1. Connect the ventilation hose to the air breather.
Mechanical (4HK1) 1B-3
2. Connect the oil level gauge guide tube to the
cylinder head cover.
tightening torque： 19 N・m { 1.9 kgf・m / 14 lb・ft }
3. Install the bracket to the cylinder head cover.
tightening torque： 24 N・m { 2.4 kgf・m / 18 lb・ft }
4. Install the air leak pipe to the bracket and EGR
cooler.
Note：
・ The existence or nonexistence of the
equipment varies depending on the machine
manufacturer.
tightening torque： 24 N・m { 2.4 kgf・m / 18 lb・ft }
Bracket
tightening torque： 22 N・m { 2.2 kgf・m / 16 lb・ft }
EGR cooler
1. Air leak pipe
2. Oil level gauge guide tube
3. Ventilation hose
4. Bracket