Pump Assembly Filter Element Replacement - PREVOST H3-41 Maintenance Manual

SECTION 04 : EXHAUST AND AFTERTREATMENT
3. Let all of the DEF drain from the tank.
Discard the used DEF according to local
regulations.
4. Remove the DEF tank filler neck insert. To
do so, release the retaining tab and remove
filler neck insert. Replace old seal if
damaged.
5. Flush the tank with hot water. Let all of the
water drain from the tank.
6. Clean the filler neck insert screen with hot
water.
7. Reinstall the filler neck insert until the
retaining tabs snap into filler neck. Reinstall
DEF tank drain plug.
MAINTENANCE
Drain and clean DEF tank and filler neck
insert filter with hot water at the intervals
specified by the Lubrication And Servicing
Schedule in Section 24: LUBRICATION &
SERVICING.
6.3 PUMP ASSEMBLY FILTER ELEMENT
REPLACEMENT
1. Clean the area around filter cover.
2. Before you loosen the filter cover, place a
suitable container under the cover to catch
fluid that may drain from the pump;
20 PA1621 Maintenance Manual All Series | January 2017
3. Remove filter cover.
CAUTION
Contamination or damage of the sealing
surface on the housing is not acceptable.
4. Use needle nose pliers to carefully remove
the equalizer and filter element. Do not
damage the sealing surface on the housing.
1. PUMP
2. FILTER COVER
FIGURE 12 : PUMP ASSEMBLY FILTER ELEMENT
5. Install new filter element and equalizer.
Checks filter element cover and housing for
damage. If either the filter or housing is
damaged, the damaged part must be
changed.
6. Install filter cover.
TORQUE: 22 lb-ft (30 Nm)
1. EQUALIZER
2. FILTER ELEMENT