Perkins 4006 User Handbook Manual page 42

MAINTENANCE PROCEDURES
CHANGING THE COMBINED FUEL
FILTER WATER SEPARATOR
Remove the filter separator canister using a
strap wrench see Fig. 33 fill the new filter/
separator with clean engine oil to the rubber
seal, then screw the canister onto the
housing using firm hand pressure. Bleed air
from the system follow the procedure
page 21.
CHANGING THE CHANGE OVER FUEL
FILTER ELEMENTS WHEN THE ENGINE
IS STOPPED
All that is necessary is to unscrew the
canisters with a strap wrench as shown in
Fig. 34, leaving the change-over lever in the
vertical position as there is no pressure in the
fuel system with the engine stationary. The
replacement canisters are screwed on by
hand, after applying a smear of clean engine
oil to the rubber seals, and tightening by firm
hand pressure only. Bleed the air from the
new filters by slackening the vent screw (2)
and operating the priming pump. Check for
leaks when the engine is restarted.
NOTE: Prepare for some spillage of fuel by
placing a bowl of about 5 litres or 1 gallon
capacity under the filter when changing the
capacities.
38
on
Fig. 33
Fig. 34
4006/8 Diesel, May 1998