L&W SC-600 ES Operating Instructions Manual page 61

M A I N T E N A N C E A N D S E R V I C E
Replace In- / Outlet Valves 3rd and 4th Stage
Note
i
The figures of the parts can differ due to the different stages.
Replacement in- / outlet valves as follows:
• Loose pipes
• Loose valve head screws (Fig. 1)
• Remove lower valve gasket (Fig. 2)
• Dismount in- / outlet valve (Fig. 3). 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 in- / outlet valve.
CAUTION: Ensure correct mounting position of the upper valve gasket (Fig. 4).
• Insert new in- / 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 in- / outlet valve. Tighten valve head screws crosswise (tightening
torque 25 Nm)
Replacement inlet and outlet valves complete.
Fig. 1 - Loose valve head
screws
LW SC-600 ES / LW SC-680 ES / LW SC-750 ES
Version: 01.01.2023
Fig. 2 - Remove lower
valve gasket
Fig. 3 - Remove in- /
outlet valve
Fig. 4 - Ensure correct
mounting position of the
upper valve gasket
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