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 Every 10 Service Hours or Daily
The auxiliary filters must be replaced when the fuel filter
3.
Attach one end of drain hose to drain valve 3.
differential gauge registers 105 kPa (15 psi). NOTE:
Put the other end of the hose in a container to catch the
Engine must be shut down to change the auxiliary filters,
fuel. Open drain valve stem 4. Remove vent plug 5 and
if the main fuel filters are empty.
drain the fuel filter housing.
4.
Remove cover 6 from the end of the filter
housing.
5.
Remove the two used filter elements from inside
the filter housing.
6.
Wipe all sediment from inside the filter housing.
7.
Install two new filter elements.
8.
Inspect the cover O-ring seal. Install new seal if
necessary.
9.
Install cover 6.
1.
To change the auxiliary filters when the control
valve is in the Auxiliary Run position, open fill valve 1 for
10.
Make sure that vent plug 5 is installed, and drain
minimum of five minutes.
valve stem 4 is closed.
2.
Close fill valve 1 and rotate control valve 2 to the
11.
Open fill valve 1 for minimum of five minutes.
Main Run position.
12.
Close fill valve 1 and leave control valve 2 in the
To change the auxiliary filters when the control valve is in
Main Run position, for normal operation.
the Main Run position, proceed to step 3.
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