Operation and maintenance manual

Operation
3-5
DX140R/DX140LCR
8. After warming unit, check all operating indicators to make
sure that all engine systems (oil pressure, coolant, etc.) are
in the normal operating range. If any problems are noticed,
stop engine. Normal indicators are:
9. Check color of exhaust smoke.
• No color or light blue - Engine is running in good
co
ndition.
• Black - Incomplete combustion. Check cause.
• White or dark blue - Engine is burning engine oil.
Ch
eck cause.
10. Check for usual engine vibrat
ion and noises. If any are
heard or felt, investigate cause.
NOTE: If engine coolant temperature gauge pointer
moves into the red zone, the engine coolant
temperature warning light will turn "ON", a
warning buzzer will sound, and the engine
speed will be automatically reduced. Allow the
engine to run at low idle speed until temperature
gauge registers in the blue zone again. When
the blue zone is reached, allow the engine to
idle for an additional three - five minutes before
shutting down the engine. If not allowed to idle,
heat surge may develop which will damage the
engine. Allowing the engine to idle will dissipate
heat. Check the coolant level, look for a loose
fan belt, inspect for debris around radiator, and
so on.
PWR
FG013731
CHECK
1
23
456
7
Figure 6
No. Instrument Panel Light or Gauge Indicator Reading
1 Engine Coolant Temperature Gauge Blue Range
2 Fuel Gauge Blue Range
3 Hydraulic Oil Temperature Gauge Blue Range
4 Charging Warning Light OFF
5 Engine Oil Pressure Warning Light OFF
6 Engine Coolant Temperature Warning Light OFF
7 Engine Check Warning Light OFF