MEGA Corp. MMP4-2 - Manual (Page 12)

MMP 4-2
5 Nov 2011
SECTION 3
Engine Control System
Contents
3-1
Description ……………………………. 3-1
Inspection ……………………………... 3-2
Repair …………………………………. 3-2
DESCRIPTION
The Engine control system consists of: A
Control box with lockable cover, Ignition
switch with key, Glow plug button, Murphy
switch, System fuse, Emergency stop button,
Throttle control, Battery voltage gauge, Engine
oil pressure gauge, Engine coolant temperature
gauge and an Engine Tachometer.
The control functions operate as follows:
Control
Function
IGNITION
SWITCH WITH
KEY Controls engine
electrical system to start,
run and shut down
engine.
GLOW PLUG
BUTTON Operates the cold
weather starting aid
system.
MURPHY
SWITCH A magnetic switch that
shuts the engine down in
the event of: low engine
oil pressure and/or over
heating of the engine
cooling system.
Control
Function
SYSTEM FUSE Protects the engine
control electrical system
in the event of an
electrical short circuit.
EMERGENCY
STOP BUTTON Disengages the Murphy
switch to shut engine
down.
THROTTLE
CONTROL Controls and locks
engine throttle lever to a
fixed RPM.
BATTERY
VOLTAGE
GAUGE Displays electrical
system voltage.
ENGINE OIL
PRESSURE
GAUGE Displays engine oil
pressure.
ENGINE
COOLANT
TEMPERATURE
GAUGE Displays engine coolant
temperature.
ENGINE
TACHOMETER
Displays engine RPM’s.
INSPECTION
1. Inspect control box and cabling for security,
condition and mounting.
2. Inspect switches, gauges and throttle
control for security, damage and
operational condition.