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7 - MAINTENANCE
Urea Quality Sensor (UQS) - Replace
CAUTION
Flying debris!
Compressed air can propel dirt, rust, etc. into the air. Wear eye and face protection when using com-
pressed air.
Failure to comply could result in minor or moderate injury.
C0049A
Prior operation:
Keep all non-authorized personnel clear of the area. Park the machine on a firm, level surface in neutral with the
parking brake applied. Lower the bucket/attachment to the ground. Turn off the engine. Install the transport/service
link into the locked position.
1. Turn the timed disconnect switch to the OFF position.
RCPH11WHL653BAU
1
2. Remove the access cover below the
DEF/A
D
B
LUE
®
tank to gain access to the Urea Quality Sensor (UQS).
NOTE:
use compressed air and water to clean debris from
around drain plug area.
NOTE:
the urea quality sensor on the bottom of the DEF/
ADBLUE® tank can be removed to drain fluid as neces-
sary. When removing the urea quality sensor, it is rec-
ommended that the electrical harness should not be dis-
connected 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 that if
the harness was disconnected from the sensor, the elec-
trical pins must be cleaned with electrical contact cleaner
and dried before the harness is reconnected to the sensor.
LEIL17WHL1583AB
2
7-131
Содержание 621G Stage IV
Страница 42: ...2 SAFETY INFORMATION Empty tool LEEN11T0024AA 20 2 22 ...
Страница 60: ...2 SAFETY INFORMATION 2 40 ...
Страница 137: ...3 CONTROLS AND INSTRUMENTS Inducement and validation re starts LEIL14WHL0394HA 2 3 77 ...
Страница 138: ...3 CONTROLS AND INSTRUMENTS Validation re start procedure LEIL15WHL0608HA 3 3 78 ...
Страница 150: ...3 CONTROLS AND INSTRUMENTS 3 90 ...
Страница 166: ...4 OPERATING INSTRUCTIONS RCPH10WHL045BAH 7 4 16 ...
Страница 168: ...4 OPERATING INSTRUCTIONS RCPH10WHL045BAH 9 4 18 ...
Страница 170: ...4 OPERATING INSTRUCTIONS RCPH10WHL045BAH 12 4 20 ...
Страница 208: ...6 WORKING OPERATIONS 6 18 ...
Страница 227: ...7 MAINTENANCE DEF AdBlue level faults failures and engine power loss levels LEIL15WHL0607HA 2 7 19 ...
Страница 228: ...7 MAINTENANCE DEF AdBlue quality faults failures and engine power loss levels LEIL15WHL0609HA 3 7 20 ...
Страница 229: ...7 MAINTENANCE DEF AdBlue technical faults LEIL14WHL0392HA 4 7 21 ...
Страница 370: ...7 MAINTENANCE 7 162 ...