Hitachi 4HK1 Workshop Manual page 33

1. Common rail assembly
2. Fuel pressure sensor
3. Common rail bracket
16. Cylinder head cover removal
1. Remove the cylinder head cover from the lower
cover.
2. Remove the head cover gasket from the cylinder
head cover.
1. Cylinder head cover
2. Gasket
3. Lower cover
17. Lower cover removal
1. Remove the connector from the lower cover.
Caution：
・ Do not pull the wire, or pry the connector with
a screwdriver.
2. Disconnect the injector harness from the injector.
Caution：
・ Be careful not to damage the injector side stud
bolts.
3. Remove the injector harness from the cylinder head
assembly.
Note：
・ Remove the bracket tightening bolts and then
remove the injector harness together with the
bracket.
4. Remove the lower cover from the cylinder head
assembly.
1. Lower cover
2. Connector
5. Remove the gasket from the lower cover.
6. Remove the rubber plug from the cylinder head
assembly.
18. Injector removal
1. Remove the injector leak-off pipe from the injector.
2. Remove the injector from the cylinder head
assembly.
Note：
・ When it is difficult to remove the injector, use a
special tool.
SST: 5-8840-2826-0 - injector remover
Mechanical (4HK1) 1B-9