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from New Holland RG 170.B VARIABLE POWER Motor Grader Operator's & Maintenance Manual 75314349 - PDF
OPERATOR´S COMPARTMENT
With the engine running and the key switch in the ON position, the electronic panel will be with all lamps off, except when the parking brake is engaged. In this case the parking brake indicator lamp will be on. Whenever you turn the ignition switch off and back on, the electronic panel will run a test.
If an actual oeprating problem should occur, the buzzer will sound steadily (with a resulting visual indication). The alarm circuit cannot be disconnected without disconnecting the entire system.
2) - The listed indicators will all go off, except the parking brake indicator (while it is engaged) D and brake pressure H (until the accumulators are again charged).
3) - If any malfunction occurs (in the case of the functions described for this monitor), the corresponding indicator will come on followed by the audible buzzer (item 4).
4) - The indicator for the parking brake D, emergency steering (option) P, differential lock T, T, warning light L L, High Beam N N, and turn indicators O O and M M will not trigger the audible alarm.
5) - Differential lock / will work only with the parking brake off and then only from 1st to 7th speeds.
WARNING LIGHTS: A. ENGINE COOLANT TEMPERATURE When this light is on, it is an indication of engine coolant overheating caused by: - No water in the system - Dirt buildup in the radiator fins - Clogged circuit - Loose fan belts - If none of the above indicatios, then check for: - Short circuit, faulty panel, faulty thermostat B. HYDRAULIC OIL TEMPERATURE
When the warning light is on, this will indicate high temperature which may be caused by: - Use of improper grade oil. - Low oil level - Abnormal circuit operation
If none of the above, then check for: - Faulty thermostat, short circuit or faulty panel.
C. TRANSMISSION OIL TEMPERATURE
When the warning light is on, this is an indication of a high temperature and probable causes are:
- Clogged vent filter - Prolonged use of the machine under improper operating conditions. - Malfunction in the hydraulic circuit operation
If none of the above, then check for: - Faulty thermostat, short circuit or faulty panel. - Low or high transmission oil level
D. PARKING BRAKE
When the warning light is on, this indicates that the parking brake is engaged. In this condition, the transmission will be disengaged.
OPERATOR´S COMPARTMENT
E. ABNORMAL BATTERY CHARGE OPERATION If the warning light is on with the engine running this is an indication of abnormality in the charging circuit caused by:
Faulty alternator Damaged charge resistor Faulty circuit.(See Periodic Service)
F. LOW TRANSMISSION OIL PRESSURE If the warning light is on, this is an indication of a high pressure and possible causes are: - Use of improper grade oil - Low oil level - Faulty circuit operation - Faulty switch or faulty panel G. LOW ENGINE OIL PRESSURE If the light comes on, this will indicate insuficient pressure, which may be caused by: - Low oil level - Use of improper grade oil - Oil leakage - Faulty operation - Faulty pressure switch, short circuit or faulty panel. H. LOW BRAKE FLUID PRESSURE f the light comes on, this will indicate insufficient pressure, which may be caused by: - Faulty pump - Membrane burst - Air entering the tubes - Oil leakage - Cracked pipes or tubes - Faulty pressure switch, short circuit or faulty panel.
I I . . AIR CLEANER RESTRICTION If the restriction light stays on steadily, this is an indication that the filter element is restricted, requiring cleaning or replacement. Faulty sensor or faulty panel. J J . . HYDRAULIC OIL FILTER RESTRICTION If the restriction light stays on steadily, this is an indication that the filter element is restricted, requiring cleaning or replacement.
K K . . TRANSMISSION OIL RESTRICTION If the restriction light stays on steadily, this is an indication that the filter element is restricted, requiring cleaning or replacement.
L L . . EMERGENCY FLASHER This alert light will be on by operation of the switch located on the right hand side of the front console.
M M. . TURN INDICATOR LIGHT N N . . HIGH BEAM INDICATOR LED (WORK) O O . . LEFT TURN INDICATOR LIGHT
4 - OPTIONAL DIFFERENTIAL LOCK
This button serves to engage or disengage the differential lock. To handle the machine the operator must disengage the lock. During transport, use of the differential lock is not allowed.