Manitowoc Grove GRT9165, Service Manual

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7-5
GRT9165 SERVICE MANUAL POWER TRAIN
7
Published 10-01-2020 Control # 699-00
GROVE
remain shut down until the fault can be repaired. For more
information, see the
Operator Manual .
Engine Warning Light
The Engine Warning Light is located in the ODM display. It is
an amber indicator light that is a part of the engine’s
electronic control system and when illuminated, gives the
operator a signal that there is a engine or transmission
problem which must be corrected. For more information, see
the
Operator Manual .
Exhaust System Cleaning Required Indicator
The Exhaust System Cleaning Required indicator is located
in the ODM display. This indicator illuminates amber when
the diesel particulate filter is getting filled with soot and
needs to be cleaned out. For more information, see the
Operator Manual .
FUEL SYSTEM
Description
The fuel system consists of the fuel tank, fuel-water
separator, secondary filter, lift pump, high-pressure pump,
high-pressure common fuel rail (Tier 4 only) and the fuel
injectors. All components except the fuel tank are installed
on the engine or supplied with the engine for remote
mounting.
Fuel Tank
The fuel tank (Figure 7-5) is a steel cylinder-type tank
located on the left side of the machine. The fuel tank has a
draw capacity of 271 L (72 gal). A connection on the bottom
of the tank provides for fuel supply to the engine. Surplus fuel
from the engine is provided to the bottom of the fuel tank
below the fuel level. The tank is equipped with a non-vented
filler cap, chain-attached to the tank, and a fuel quantity
sender unit which provides a signal to a fuel quantity gauge
on the instrument panel in the cab.
Injection Fuel Pump
The fuel oil 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 or to the inlet side of the
pump. 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. The filter is mounted near the fuel tank on the left
side of the crane.
The fuel mixture passes through the outer wrap of the first
stage of the filter paper, where large droplets of water are
formed as it is stripped from the fuel. The water falls out into
the void between the two paper elements and goes to a
reservoir in the bottom of the housing, where it can be
drained through a drain plug at the bottom of the housing.
The water in fuel sensor is located in the fuel filter housing.
After the storage space in the bottom of the filter housing fills
with a certain amount of water, the sensor will signal the
ECM.
Maintenance
NOTE: The entire fuel system must be maintained air tight
to prevent loss of prime.
Fuel Tank
The fuel tank (1, Figure 7-5) should be kept filled, especially
overnight, to minimize condensation. Refer to the applicable
engine manual for the recommended schedule for draining
any water or sediment from the tank.
Removal
1. Position a suitable container under the fuel tank and
drain all fuel from the tank (1).
2. Tag and disconnect the lines from supply (11) and return
(12) ports on the bottom of the tank.
3. Disconnect the electrical lead from the fuel quantity
sending unit (3).
4. Support the weight of the tank, loosen and remove the
nuts (7) and washers (8) securing the straps (9) to the
mounting brackets. Remove the tank (1).
CAUTION
Engine Shut-down Condition!
When the DPF indicator illuminates or flashes, start the
exhaust system cleaning process.
Should the engine light come on with the DPF indicator,
the engine will shut down and an authorized engine
manufacturer service person must be contacted to re-start
the engine.
WARNING
Fire or Burn Hazard!
During the exhaust system cleaning process the exhaust
becomes very hot. Do not park the vehicle near
flammable objects.
Use caution near the exhaust tailpipe during exhaust
system cleaning as it will become very hot.