MAINTENANCE SCHEDULE & CHECKLISTS
4012/16 Diesel, February 1997 4
8
EVERY 250 HOURS OR EVERY 6 MONTHS
CLOSED CIRCUIT BREATHER SYSTEM
(IF FITTED)
The closed circuit separators are mounted
just behind the thermostat housing via an
expansion pipe and hose bend which is fitted
on each side of the gearcase and is
connected to the air inlet via the breather
valve see Fig. 41.
To clean the breather separator remove the
complete unit from the engine remove the
top cover and withdraw the foam element
(see Fig. 40), check for oil saturation wash
thoroughly (with a suitable detergent), shake
as dry as possible and finally blow dry with
compressed air. Check the lower body for
sludge contamination build up and clean as
above. Finally refit in reverse order.
Fig. 40
Fig. 41
