L&W SC-300 E, Operating Instructions Manual

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LW SC-300 E / LW SC-350 E
Version: 06.12.2022
M A I N T E N A N C E A N D S E R V I C E
Replace inlet and outlet valves 2nd and 3rd stage
Inlet and outlet valves change as follows:
• Loosen pipe connections (Fig. 1).
• Loosen valve head screws (Fig. 2).
• Remove lower valve gasket (Fig. 3).
• Dismount inlet and outlet valve (Fig. 4).
Observe that the upper valve gasket is also pulled out. It can
still stick inside the cylinder head.
• Check valve head if defective (check centre pin)
• Mount valve gasket on inlet and outlet valve
CAUTION: Ensure correct mounting position of the upper valve
gasket (Fig. 5).
• Insert new inlet and outlet valve into valve head
CAUTION: Observe correct position between valve centre hole
and valve head centre pin.
• Place lower valve gasket
• Place valve head with the new inlet and outlet valve. Tighten
valve head screws crosswise (tightening torque 35 Nm).
• Connect pipe connections and tighten.
The inlet and outlet valves change is now completed.
Fig. 1 - Loosen pipe connections
Fig. 3 - Remove lower valve gasket Fig. 4 - Remove inlet and outlet valve
Fig. 2 - Loosen valve head screws
Fig. 5 - Ensure correct mounting
position of the upper valve gasket
Note
The figures of the parts can differ due to the different stages.
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