OPERATION
3.Ensure the tool circuit levers are in the OFF position.
4.If starting the engine in cold weather conditions turn the start switch until the battery charge light comes on. Then press and hold the glow plug button for 10- 15 seconds. Release the glow plug button and turn the start switch to the third start position to crank the engine.
5.Turn the start switch clockwise to begin cranking the engine. Use short starting cycles (15 seconds per minute) to prolong starter life. Extended cranking can damage the starter motor.
6.After the engine starts, allow it to
NOTE:
Hydraulic fluids are thicker in cold weather. It is rec- ommended that the engine be operated at low idle long enough to allow the fluid temperature to warm to a minimum of 50 °F.
7.When the engine is warmed up the throttle may be advanced and the hydraulic tool circuits may be used.
INSTRUMENTS
BATTERY CHARGE LIGHT
A problem with the charging circuit exists if the battery charge light remains on after the engine has started.
OIL PRESSURE LIGHT
A problem with the engine oil lubricating system exists if the oil pressure light remains on after the engine has started. Shutdown the engine and then have the lubri- cating system serviced by a qualified technician.
14 ► MHP3 Diesel User Manual
Dash Panel Warning Lights
NOTICE
If the engine runs out of fuel or dies during operation or if the stop knob is pulled and the ignition switch is left in the ON position, the battery may become discharged. Make sure the start switch is returned to the OFF position.
COLD WEATHER STARTUP
1.Use the procedures described under “Starting The Engine” and then follow the procedures below.
2.Hydraulic fluids are thicker in cold weather, there- fore, it is recommended that the engine be run at low idle long enough to bring the fluid temperature up to a minimum of 50 °F/10 °C or until the top of the hydraulic filter feels warm.
3.If the tools and tool hoses are cold, it is recommend- ed to allow hydraulic fluid to circulate through the tool hoses until warm before using the tools.
ENGINE SHUTDOWN
Place both control levers in the OFF position. Push the throttle control completely in. Allow the engine to idle for approximately one minute, turn the switch to OFF, and then pull the stop knob to shutdown the unit. Make sure the start switch is in the off position.
HYDRAULIC TOOL CIRCUIT CONTROLS
The MHP3 TracHorse provides two circuits, each with an oil flow of 5 gpm/19 lpm up to 2000 psi/140 bar. Or the two circuits may be combined into one circuit provid-
