14 ► MHP3 Diesel User Manual
OPERATION
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 qualied technician.
Dash Panel Warning Lights
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 uids are thicker in cold weather, there-
fore, it is recommended that the engine be run at
low idle long enough to bring the uid temperature
up to a minimum of 50 °F/10 °C or until the top of the
hydraulic lter feels warm.
3. If the tools and tool hoses are cold, it is recommend-
ed to allow hydraulic uid to circulate through the
tool hoses until warm before using the tools.
1. If using one 5 GPM tool circuit, select either circuit
and connect the PRESSURE FLUID OUT hose to
the male coupler and connect the RETURN FLUID
IN (RETURN) to the female coupler near to it. Con-
nect the other ends of the hoses to the tool.
If using both 5 GPM tool circuits, connect PRES-
SURE FLUID OUT hoses to the male couplers and
connect the RETURN FLUID IN (RETURN) hoses
to the female couplers. Connect the other ends of
the hoses to the tools.
2. Ensure the throttle control is depressed fully to the
idle position.
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 warm-up.
NOTE:
Hydraulic uids are thicker in cold weather. It is rec-
ommended that the engine be operated at low idle
long enough to allow the uid 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.
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