User manual

wc_tx003350gb.fm
39
HIF 690 Operation
Continued from the previous page.
Guidelines  Observe all safety guidelines and instructions in the Operator’s Manual.
 Do not use engine rpm to adjust output temperature.
 Keep all doors and panels closed during operation.
 Use approved Wacker Neuson duct adapters and ducts.
System
efficiency
Refer to the examples below to determine the settings that will acheive maximum
efficiency while running your machine.
Setting the
temperature
Setting the temperature will control the louvers on the air intake end of the
machine. As the system heats up, the louvers automatically adjust to control airflow
and system temperature.
Perform the procedure below to set the temperature.
1. Start the engine. See Starting the Engine.
2. Allow engine to warm up. See Preliminary Checks.
3. Increase engine rpm.
 Minimum running speed:1,800 rpm
 Maximum running speed: 2,500 rpm.
4. Use the dial on the temperature controller to set to the desired output
temperature.
 Maximum output temperature: 250°F (121°C).
Engine rpm Engine rpm is a relevant factor for machine performance and efficiency. The user
can choose the rpm setting for operation. Adjusting rpm alone will have the follwing
effects.
Running at higher rpm will:
 increase fuel usage
 speed up temperature rise
 increase airflow
Running at lower rpm will:
 decrease fuel usage
 slow down temperature rise
 decrease airflow
Parameter Example1 Example 2
Appilcation area Small, enclosed Large, partially enclosed
Recommended
temperature control setting
>170°F <170°F
Effects
 Reduced airflow
 Increased temperature
rise
 Increased airflow
 Nominal temperature rise