MEGA Corp. MMP4-2 - Manual (Page 13)

MMP 4-2
5 Nov 2011
SECTION 3
Engine Control System
3-2
REPAIR
Switch Replacement
1. Remove power to the engine control.
2. Remove engine control face plate to gain
access to the switch.
3. Mark wiring on old switch before removal
to ensure correct wiring configuration is
maintained.
4. Remove old switch and replace with the
same type of switch.
5. Install wiring on new switch as previously
marked.
6. Install engine control face plate in control
box.
7. Apply power to the engine control and
perform functional check of the newly
installed switch.
Indicator Gauge Replacement
1. Remove power to the engine control.
2. Remove engine control face plate to gain
access to gauge and wiring.
3. Mark wiring on old gauge before removal
to ensure correct wiring configuration is
maintained.
4. Remove old gauge and replace with the
same type of gauge.
5. Install wiring on new gauge as previously
marked.
6. Install engine control face panel in control
box
7. Apply power to the engine control and
perform functional check of newly installed
indicator gauge.
Engine Tachometer Replacement
1. Remove power to the engine control.
2. Remove engine control face plate to gain
access to the backside of the tachometer.
3. Mark wiring on old tachometer before
removal to ensure correct wiring
configuration is maintained.
4. Remove old tachometer and replace with
the same type tachometer.
5. Installed wiring on new tachometer as
previously marked.
6. Install engine control plate in control box.
7. Apply power to engine control and perform
functional check of newly installed
tachometer.
Throttle Control replacement
1. Remove power to the engine and engine
Control system.
2. Loosen cable locking screw on throttle
lever on fuel injection pump.
3. Remove cable jam nut on lever side of the
fuel pump mounting bracket.
4. Remove cable jam nut on throttle adjusting
end of cable.
5. Remove cable assembly.