New Holland WorkMaster 50 Service Manual page 703

Electrical systems - Warning indicators, alarms, and instruments
Indicator lamp (amber)
This indicator light comes on and the display shows a warning symbol (30). The light blinks
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for 4 seconds, after which the symbol on the display disappears and the indicator light stays
on steady. To display the fault, you need to go to the menu. Stop the tractor and investigate
the cause of the trouble.
Parking brake warning light (red)
This lights up when the key start switch is turned ON with the parking brake applied. If the
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key-start switch is turned OFF and the parking brake is not applied, or the operator leaves
the seat without applying the parking brake, a warning buzzer will sound for approximately 10
seconds or until the parking brake has been applied.
Engine oil pressure warning light (red)
Engine oil pressure indicator light (red) - This indicator light together with the red (5). "Stop"
indicator light indicates the engine oil pressure is too low. Stop the engine and investigate
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the cause.
NOTE: With low engine oil pressure, this warning light illuminates when the start switch is in
the contact position B (supply to accessories - ignition).
Cold start device (amber)
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The indicator lights up when the glow plugs are turned on by the key start switch.
Right direction indicator (green)
This indicator light flashes at the same time as the tractor's right direction indicator. With the
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tractor running, if the turn signal is not switched off within 20 seconds an intermittent alarm
comes on. This audible warning comes on if the direction indicator is not turned off within five
minutes with the tractor stationary.
Warning light of the Diesel Particulate Filter (DPF) (green)
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For more details, see the chapter on regeneration of the particulate filter.
Alternator charging warning light (red)
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A steady light indicates that the alternator is not charging the battery.
Fuel reserve (amber)
13
The light comes on when the tractor needs refuelling.
Fuel Level Gauge
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This instrument shows the fuel level in the tank.
Revolution counter
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Indicates the engine rpm. Each subdivision of the graduated scale represents 100 revs/minute.
Rear Power Take−Off (PTO) warning light (yellow)
Lights up when the engine is running and the rear power take-off is engaged.
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The warning light, from being on steady, starts blinking when the power take−off exceeds
the maximum permissible number of revs.
Left direction indicator (green)
This indicator light flashes at the same time as the tractor's left direction indicator. With the
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tractor running, if the turn signal is not switched off within 20 seconds an intermittent alarm
comes on. This audible warning comes on if the direction indicator is not turned off within five
minutes with the tractor stationary.
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