Hitachi EX20UR-2 Manual page 349

ENGINE/Engine
Torque
1.5 — 2.5
Spring seat, spring
Install the spring with smaller pitch (yellow paint side)
faced down.
Valve
(1) Apply a mixture of oil and molybdenum disulfide to
the valve stem.
Engine oil : Molybdenum — 1 : 1
(2) After installing the valve, prevent the valve from
dropping off and form being damaged.
Split collar
Special tool: 5 - 8840 - 9001 - 0
Insert the collar by compressing a spring with the re-
placer.
Inlet manifold
Exhaust manifold
Gasket
(kg•m)
W05-02-33