Remove/Install Valves - Ar05.30-S-3511EG

Model 907 with engine 274

	Remove/install
1	Remove valve springs (3).		AR05.30-S-3021EG
2	Remove the valve stem seals (6).		AR05.30-S-3510EG
3	Remove cylinder head (1) from the assembly device.	Assembly tool	Fig 1
	Remove valves (5).
	Check
5	Check surface of the valve stems for roughness and pitting; check the surface of the valve seat rings for roughness.	Carry out visual inspection or test using a nail probe. If there is a problem, ↓ Replace valves (5).
6	Install in the reverse order

Fig 1: Assembly Tool (271 589 00 59 00)