MEGA Corp. MMP4-1 - Manual (Page 12)

MMP4(T2)-OPS-1
4 Oct 2011
SECTION 2
System Description
2-2
AXIAL WATER PUMP
The 12” axial, hydraulic drive water pump used
on the MMP4 is mounted to a flange mounted
on the inlet boom extension. The pump
includes a heavy debris inlet screen to prevent
any large pieces of debris from entering the
pump and the water tanker to prevent possible
damage to the spray systems and water pumps.
Mounted to the water pump below the inlet
screen is a protector plate, this plate can
prevent the water pump inlet screen from
setting directly on the bottom of the pond and
picking up unwanted debris, dirt or partially
restricting the intake of the water pump. When
submerged in the holding pond the inlet of the
water pump must be 2.5’ (0.762 meters) below
the surface of the pond at all times while
pumping water. The water pump hydraulic
drive motor is connected to the hydraulic
control valve by 2 hydraulic hoses, this routes
hydraulic oil to the water pump drive motor
when the control valve spool is shifted to the
ON position returns oil back to the hydraulic
control valve then to the 10 micron rated
hydraulic oil filter. The water pump discharge
volume is proportional to the engine rpm (e.g;
the higher the engine rpm the larger the volume
of water the pump will discharge). The water
pump contains 2 oil reservoirs to lubricate the
shaft bearings.
ENGINE CONTROL BOX
The engine control box controls and monitors
the main engine functions. It is equipped with:
• Magnetic safety switch (MURPHY) that will
shut the engine OFF if the engine coolant
temperature reads too high or the engine oil
pressure reads too low.
• Oil pressure gauge for monitoring the engine
oil pressure.
• Engine coolant temperature for monitoring
the engine coolant temperature.
• Tachometer to monitor the engine rpms or
speed.
•
Tachometer
Engine Coolant
Temperature
Gauge
Emergency
Stop
Button
System
Electrical
Fuse
MURPHY
Switch
Engine Preheat Button Engine Start – Stop Key
Switch
Engine
Oil
Pressure
Gauge
Battery
Volt
Meter
Hand Throttle