4
46 User’s Handbook, TSL 4186E, Issue 2
4012/16 Diesel
How to change the standard fuel filter / water separator (4012 engines)
Special requirements
Draining the filter / separator
Warnings!
z Disconnect batteries or any other means of starting the engine. Always wear protective gloves.
z This operation must be done with the engine stopped.
Note: Water collected in the separator should be drained off weekly.
1 Leave the fuel supply turned on.
2 Place a container (A1) under the filter / separator unit (A2).
3 Open the self venting valve (A3) until water free fuel flows, then close the valve.
Changing the filter / separator
1 Turn off the fuel supply.
2 Remove the filter separator canister using a strap wrench (A4).
3 Fill the new filter / separator canister with clean fuel. Apply clean engine oil to the rubber sealing ring then
carefully screw the new canister up to the housing. Use firm hand pressure only.
4 Turn on the fuel.
Note: The small amount of air trapped in the system after changing a filter will automatically be vented by the
engine.
Special tools
Description Part number
Strap wrench UA
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