4
48 User’s Handbook, TSL 4186E, Issue 2
4012/16 Diesel
How to change the optional change-over fuel filters with the engine running
Special requirements
The operation of the change-over filter is controlled by a three position lever (A). The three positions are:
z Normal position is with the change-over lever in the vertical position (A1).
z Moving the lever to the left (A2) puts the right hand filter out of service.
z Moving the lever to the right (A3) puts the left hand filter out of service.
1 With the lever positioned remove the appropriate filter canister using a strap wrench.
2 Fill the new filter canister with fuel.
3 Apply clean engine oil to the rubber sealing ring.
4 Carefully screw the new canister up to the housing using firm hand pressure only.
Note: Air must be vented from each new filter using the following procedure.
5 Slacken the vent screw (B2).
6 Slowly raise the lever (B1) towards the vertical position. Stop when air free fuel flows.
7 Tighten the vent screw. Return the lever to the vertical position.
8 Repeat the operation on the second filter.
9 Wipe any spilt fuel from the filter unit.
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
To Next Page
Loading...
