Fuel filter change with non-re-
versible filters and stationary
engine
1.
Stop engine and disable engine start.
2.
Unscrew easy-change filter (2) from filter
base (1) using an oil filter wrench.
3.
Clean sealing surface on filter head.
4.
Check seal on new easy-change filter and
moisten with fuel.
5.
Install and tighten easy-change filter by hand.
6.
Replace further fuel filters in the same way.
7.
Vent fuel system (→ Page 94).
Fuel filter change with reversi-
ble filters and stationary engine
1.
Stop engine and disable engine start.
2.
Set lever to position A.
3.
Unscrew both filters with oil filter wrench.
4.
Clean sealing surface on filter head.
5.
Check sealing ring on new easy-change filter
and moisten with fuel.
6.
Install and tighten easy-change filter by hand.
7.
Vent fuel system (→ Page 94).
Fuel filter change with reversi-
ble filters and running engine
1.
Cut out the filter to be changed, e.g. set
three-way cock to (B) position to cut out the
filter (3) to be replaced.
2.
Open threaded vent plug (3) on filter head to
depressurize and check it.
3.
Unscrew switched off easy-change filter (3)
with oil filter wrench.
4.
Clean sealing surface on filter head.
5.
Check sealing ring on new easy-change fil-
ter (3) and moisten with fuel.
6.
Install easy-change filter (3) and screw on by
hand.
7.
Set three-way cock to position (A) so that
both filters are in operation (normal position);
when doing this, keep the vent nipple opened
until bubble-free fuel emerges.
8.
Replace further fuel filters in the same way.
98 | Fuel Filter | MS150119/01E 2016-02
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