MAINTENANCE
Page 135
PRE-PUMP FILTER CARTRIDGE CLEANING
OR REPLACEMENT
To remove, clean or replace the pre-pump filter
cartridge (if so equipped):
1. Thoroughly wash the area around the filter
housing and pump base with a suitable
solvent and blow dry with compressed air.
2. Remove the filter housing from the pump
base and remove the cartridge from the
housing.
3. Empty accumulated sediment, then clean
and dry the housing.
4. Clean the cartridge screen and check it for
tears or other damage. Replace the
cartridge if necessary.
5. Fill the housing with clean filtered fuel and
insert the cartridge into the housing. Make
sure the spring is in place at the top of the
cartridge.
6. With the O-ring in place, install the housing
to the pump base and tighten to 6–7 lb-ft
(8–10 N폷m).
SPIN-ON FUEL FILTER REPLACEMENT
To replace the spin-on fuel filter on the pressure
side of the pump and the chassis-mounted
primary fuel filter (if so equipped):
1. Again, make sure the filter element and
pump mounting adapter is cleaned
thoroughly. If not already done, wash the
area around the filter element and pump
mounting adapter with a suitable solvent and
blow dry with compressed air.
2. With a suitable container in place under the
filter element, open the drain fitting to
remove residual fuel from the element. This
step is necessary to avoid fuel spillage as
the filter is tilted to move it out from between
the engine and chassis frame.
3. Using tool J 24783, remove the old filter
from the pump mounting.
4. Apply a thin film of clean engine oil to the
sealing gasket of the new filter.
5. Using clean filtered fuel, prime the filter by
filling it through the series of small holes at
the top. DO NOT prime the filter through the
center hole. Use care to avoid dirt entering
the outlet port of the filter.
6. Install the new filter and tighten an additional
3/4 to 1 turn by hand after the gasket
contacts the base.
If priming the fuel system on an ASET™ AC
engine becomes necessary, the only acceptable
method is to use the hand primer pump located
on the supply pump. DO NOT attempt to prime
the fuel system by applying air pressure to the
fuel tank or by using an auxiliary pump, as these
methods may result in severe engine damage
caused by fuel that leaked past the supply pump
seal into the crankcase.
7. Start the engine and check for leaks.
5-111.bk Page 135 Monday, July 10, 2006 2:26 PM
To Next Page
Loading...
