Case CX235C SR Operator's Manual page 212

Pre-filter bleeding
When the float reaches the level line (A):
1. Place a receptacle of a suitable capacity under the
pre-filter.
2. Loosen the drain plug (1) and the bleed screw (2) then
drain the water and sediment.
3. When the float (3) settles on the bottom, tighten the
drain plug (1) and the bleed screw (2).
Tightening torque: 8 - 12 N·m (5.9 - 8.9 lb ft)
ATTENTION: Overtightening can damage the seal.
4. Check for any signs of leak.
NOTICE: In cold weather, the water can freeze on the top
part of the bowl. Bleed after the ice has melted.
Replacing the pre-filter element
ATTENTION: If a fuel filter other than a genuine CASE
CONSTRUCTION filter is used, the guarantee will not be
applied to a fault caused by the use of a wrong filter.
1. Place a receptacle of a suitable capacity under the
pre-filter.
2. Close the valve (1) on the supply line.
3. Loosen the drain plug (2) and the bleed screw (3) then
drain the fuel and sediments from the pre-filter.
6 - MAINTENANCE
6-28
2
DED9093B
3
53D26B7E
4
5DB3712C