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Removing the 4th Stage Pressure Valve
3.11.8.2 Reassembly
1. Replace the intake valve (1) using the special tool to tighten it.
2. Check the intake valve functions correctly by blowing compressed air through the valve in the direction of flow.
3. Secure the intake valve as follows: Peen the valve head aluminum over the screw in thread of the intake valve
in two places opposite one another. Use a small drift pin, approximately 5mm in diameter.
4. Reinstall the pressure valve (4) by putting O-ring (3) into valve head (2). Check it for abrasions.
5. Insert pressure valve through O-ring and into valve bore.
6. Put on valve head cover (5).
7. Reassemble valve head cover and valve head to cylinder. Torque bolts (9) to the proper value.
8. Screw in stud (6). Put on gasket (7). Screw on cap nut. (8).
