Revised A 45 6301
5. Maintenance (continued)
5.3.8. Turbine repair procedures
Tools required:
• 400 grit wet sandpaper
• 600 or finer grit wet sandpaper
• Lapping surface / flat marble stone / flat glass surface
• Compressed air line
Clean all components with solvent, and follow the steps described below:
Wet sanding method:
Step 1:
Place a 5 x 5 inches lapping surface in a basin or a sink and cover
with at least 1/4” of water.
Note: Best results are obtained if sanding is done under running
water.
Step 2:
The first sanding is done with a 400 grit paper.
Note: Be certain that the paper, the water and the slab remain clean
at all time to avoid damage to the surfaces.
Step 3 and 4:
Place the paper under water over the lapping surface and smooth
out the paper with the fingers to remove any air bubbles.
Note: Roll up paper if edges curl upward in the water.
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