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Fuel pre-filters
Check the water deposit at the bottom of the fuel pre-filter bodies every 10 h or every day.
When the floating ring reaches the level indicated by
the line (A):
1. Place a container with an appropriate capacity under
the pre-filters.
2. Loosen the drain plug (1) and the air bleed plug (2), and
then drain water and sediment.
3. When the floating ring reaches the bottom, tighten the
drain plug (1) and the air bleed plug (2) to the torque of
2 – 3 N·m (1.48 – 2.21 lb ft) 8 – 12 N·m (5.90 – 8.89 lb
ft) respectively.
NOTICE: Overtightening can damage the seal.
4. Check for any signs of leaks.
NOTICE: In cold weather, water may freeze on top of the
pre-filter bodies. Wait until ice melts before drainage.
6 - MAINTENANCE
6-20
1
SMIL17CEX0180AA
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