Case 621G Stage IV, Оригинальное руководство пользователя

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7 - MAINTENANCE
Selective Catalytic Reduction (SCR) basic instructions
Requirements
The operator must maintain appropriate DEF/A
D
B
LUE
® levels at all times. No additional maintenance is required.
NOTICE: prolonged idling of the machine with no load for more than 6 h will cause damage to the SCR catalyst.
NOTE: see your CASE CONSTRUCTION dealer for replacement components and cleaning agents.
NOTICE: while any company can perform necessary maintenance or repairs on your equipment, [Brand] strongly
recommends that you use only authorized CASE CONSTRUCTION dealers and products that meet the given speci-
fications. Improperly or incorrectly performed maintenance and repair voids the equipment warranty and may affect
service intervals.
DEF/A
D
B
LUE
® tank refilling
The DEF/A
D
B
LUE
® tank is located on the right-hand side
of the machine, next to the diesel filling port.
The DEF/A
D
B
LUE
® tank cap (2) is located on the right-
hand side of the machine, inside its own compartment
(1) . Open the compartment door and locate the blue tank
cap (2) . A fitting under the cap prevents the insertion of a
diesel fill nozzle.
NOTICE: if any DEF/A
D
B
LUE
® spills or contacts any
surface other than the storage tanks, immediately clean
the affected surface with clear water.
DEF/A
D
B
LUE
®
will cause corrosion on painted and unpainted metallic
surfaces, and may distort some plastic and rubber com-
ponents.
LEIL13WHL0259AB
10
NOTE: the urea quality sensor on the bottom of the DEF/A
D
B
LUE
® tank can be removed to drain fluid out of the tank
as necessary. When removing the urea quality sensor, it is recommended that the electrical harness should not be
disconnected from the urea quality sensor. The urea quality sensor should be cleaned by flushing with deionized
water before re-installation. Note that the sensor should not be submerged while cleaning so that water does not
enter the vent located on the bottom of the sensor. Also note the if the harness was disconnected from the sensor,
the electrical pins must be cleaned with electrical contact cleaner and dried before the harness is reconnected to the
sensor.
It is recommended that DEF/A
D
B
LUE
® filling equipment should be used having a fill nozzle/pump with the correct
length and diameter, triggered by the magnet in the tank filler neck and with overfill flow cut out.
This will ensure that:
• The screen in the filler neck will not be damaged.
• Impurities do not enter the
DEF/A
D
B
LUE
® . The standardized DEF/A
D
B
LUE
® nozzle matches the filler neck diam-
eter.
• The
DEF/A
D
B
LUE
® tank is not overfilled, as the DEF/A
D
B
LUE
® pump will stop when the DEF/A
D
B
LUE
® tank is full.
NOTICE: if a warning light has been triggered for low or empty DEF/A
D
B
LUE
® , the system must be reset by cycling
the key switch OFF then ON after refilling the DEF/A
D
B
LUE
® tank.
NOTICE: do not refill tank with a funnel, as this may lead to damage of the screen in the filler neck.
NOTE: the published information has been provided by the International Organization for Standardization (ISO), Doc-
ument number ISO 22241-4 Diesel engines - NO
x
reduction agent AUS 32 - Part 4: Refilling interface.
7-34