Yanmar Lx410 Operator's Manual page 56

10.Warm Up the Engine in Cold Weather
1. In cold weather, warm up the engine for longer
than 5 minutes so the hydraulic system can
operate at peak performance.
2. Warm up for a period as specified in the table
below.
Temperature (°F (°C))
Over 32 (0)
32 to 14 (0 to –10)
14 to –4 (–10 to –20)
Below –4 (–20)
NOTE
● The engine may run slightly louder and emit pale
blue exhaust during warm up.
• the preceding state is normal
• the amount of pale blue exhaust varies
depending on the ambient temperature
● Idling the engine for a long time wastes fuel and
causes carbon accumulation in the engine.
Lx410/450/490 Operator's Manual
7. OPERATE THE ENGINE
Warming-up Time (min.)
At least 5
5 to 10
10 to 15
More than 15
11.Idle the Engine
NOTE
● Avoid idling the engine for a long time.
● Prolong idling wastes fuel and causes carbon to
build up in the engine.
1. Pull the throttle control lever backward to the slow
idle (975 Revolutions Per Minute (rpm)) position.
2. Engage the parking brake securely, for details,
see "6. Lock and Set the Parking Brake" on page
7-4.
15 IMG_4500b
(A) Throttle control lever
(B)
4 IMG_4473a
(B) Parking brake lock lever
7-7
(A)