How To Change The Change-Over Filters (If Fitted); With Engine Running - Perkins 4012 Manual

4
4012/16 Diesel

How to change the change-over filters (if fitted)

With engine running

1 With both filters on line the marking on the change-over valve will be as (A1).
2 Using a spanner turn the change-over valve to position (A2) directing the oil away from the right hand filter.
3 Remove the filter using a strap wrench, turning the filter anti-clockwise.
Caution: Prepare for a small oil spillage as the filter is removed.
4 Clean the sealing face and threaded boss of the filter header.
5 Fill the new filter with oil and lightly lubricate the sealing ring.
6 Screw the filter up to the header using firm hand pressure.
7 Turn the change-over valve back to position (A1).
8 Turn the change-over valve to position (A3) and change the left hand filter.
Note: View (A4) shows oil flow from engine to filters. View (A5) shows oil flow from filters to engine.
With engine stopped
Follow the procedure for standard filters given in "How to change the engine oil and standard oil filter" on page
42.
User's Handbook, TSL 4186E, Issue 2 43