Grove
Published 01-14-2021 Control # 707-01
7-7
TMS9000-2 SERVICE MANUAL
POWER TRAIN
7
Injection Fuel Pump
The fuel is finely atomized as it is injected into the cylinder
and ignited by the heat of compression. It is metered also,
before injection, to meet the load requirements imposed
upon the engine.
Surplus fuel, returning from the injectors, is bypassed back
to the fuel tank. The continuous flow of fuel through the
injectors helps to cool the injectors and to purge air from the
system.
Fuel Filter-Water Separator
The fuel filter-water separator removes impurities from the
fuel and also removes water from the fuel before it reaches
the engine. It is mounted under the decking forward of the
fuel tank.
The fuel mixture passes through the outer wrap of the first
stage of the filter paper, where large droplets of water,
removed from the fuel, are formed. The water droplets drain
into a void between the two paper elements and to a
reservoir in the bottom of the housing, where it can be
drained through a petcock.
As the filter becomes clogged the level of fuel will increase.
When the filter looks full of fuel the filter should be changed.
Maintenance
Fuel Tank
The fuel tank should be kept filled, especially overnight, to
reduce condensation to a minimum. Refer to the applicable
engine manual for the recommended schedule for draining
any water or sediment from the tank.
Removal
1.
Place a suitable container under the fuel tank and drain
all fuel from the tank.
2.
Tag and disconnect the two lines from the tank.
3.
Disconnect the electrical leads from the fuel quantity
sender units.
4.
Remove the hardware securing the tank in place and
using a suitable lifting device, remove the fuel tank.
5.
If a new tank is to be installed, remove the two fittings,
the fuel quantity senders, and steps from the tank and
install them on the new tank.
Installation
1.
Position the tank and install the hardware securing the
tank in place.
2.
Connect the electrical lead to the fuel quantity sender
units.
3.
Connect the two lines to the fittings on the tank in
accordance with the identification marks made during
removal.
4.
Service the tank.
Fuel Filter-Water Separator
Draining
The sump of the fuel filter-water separator should be drained
daily, 30 minutes after the engine is shut down, to remove
any water and sediment. Adhere to the following procedure.
1.
Place a suitable container under the filter and open the
drain plug.
2.
Drain until fuel appears.
3.
Close the drain plug.
Filter Change Procedure
1.
Turn off the engine. Loosen the vent cap to break the air
lock in the filter.
2.
Open the drain valve and drain the fuel level below the
collar, then close the drain valve.
3.
Using the collar/vent cap wrench (Grove part number
90023151), remove the clear cover from the fuel
processor by removing the collar. Discard the O-ring
from the base of the cover. (A new o-ring seal is supplied
with the new filter.) Remove the filter element from the
filter body by pulling upward and twisting slightly. Be
sure the sealing grommet is removed from the center
stud.
4.
Install the new filter element (supplied with a sealing
grommet already inserted into the element) on the
processor center stud by pushing down and twisting
slightly. After checking to make sure the new O-ring seal
(supplied with the filter) at the base of the cover is in
place, install the cover and collar. Hand tighten the collar
until seated. Do not use tools to tighten.
5.
Remove the vent cap from the top of the clear cover by
turning the vent cap counterclockwise. Fill the clear
cover with enough clean fuel to cover the bottom half of
the filter element. Make sure the new O-ring (supplied
with the filter) is installed on the vent cap. Reinstall the
vent cap and tighten by hand only.
6.
Start the engine. When the lubrication system reaches
its normal operating pressure, increase engine RPM for
one minute.
NOTE:
The clear filter cover will not fill completely during
engine operation. It will gradually fill over time as
the filter becomes clogged. The filter element does
not need to be changed until the fuel level has risen
to the top of the filter element.
Fo
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Reference
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