98AB-5-0450 Tohatsu RUBBER PIPE

Illustration 1 g00804444
The control panel contains the following items:
Gauges
Indicator lamps
SwitchesGauges
Illustration 2 shows the arrangement of the following gauges:
"ENGINE SPEED"
"STARTING AIR PRESSURE"
"ENGINE HOURS" The gauges are a backup to the programmable logic controller.In the event of a failure in the PLC, the redundant relay backup system will maintain minimum engine protection. The gauges are used for essential engine operation.Note: The "ENGINE SPEED" gauge, "STARTING AIR PRESSURE" gauge, and "ENGINE HOURS" meter are provided as a backup to the monitoring system. The gauges may be used for basic engine operation that is independent of the programmable logic control and the display screen. Also, the switches and the "EMERGENCY STOP" button on the control panel operate independently, if necessary. However, power must be supplied to the control panel in order for the components to operate.
Illustration 2 g00804446
"ENGINE SPEED" Gauge
The "ENGINE SPEED" gauge has a digital display. The gauge displays the rotational speed of the crankshaft.The signal for this gauge is provided by an engine speed sensor that is mounted in the flywheel housing. The signal is also used by the Engine Speed Switch. The engine RPM is displayed on the gauge regardless of the status of the PLC.
Illustration 3 g00804445
"STARTING AIR PRESSURE" Gauge
The gauge indicates the air pressure for the starting motor and the shutoffs regardless of the status of the PLC.The start air pressure must be a minimum of 482 kPa (70 psi) and a maximum of 1550 kPa (225 psi). Starting air pressure above 1550 kPa (225 psi) is abnormal. Stop the engine and diagnose the cause. Running the engine during abnormal conditions may cause engine damage.
Illustration 4 g00562723
"ENGINE HOURS" Meter
The "ENGINE HOURS" meter indicates the total hours on the engine. The hour meter is driven off the contacts of the crank terminate relay. The meter is operating after crank terminate speed is reached.Use the hour meter in order to schedule engine service.
Illustration 5 g00562726
Indicator Lamps
The indicator lamps provide the following status information:
"SUMMARY SHUTDOWN"
"SUMMARY ALARM"
"CONTROL FAILURE"
"ENGINE PRELUBE"The lamps activate when the "HORN SILENCE/LAMP TEST" switch is placed in the LAMP TEST.
Illustration 6 g00804173
"SUMMARY SHUTDOWN" Indicator Lamp
The "SUMMARY SHUTDOWN" lamp displays the status of the engine protection shutdown system.An OFF lamp indicates that no engine protection shutdowns exist within the system.A flashing "SUMMARY SHUTDOWN" lamp indicates that an engine protection shutdown has occurred and that the shutdown has not been acknowledged. A description of the shutdowns that are active is displayed on an alarm banner of the operator interface and on the alarm status screens. Shutdowns can be acknowledged on the operator interface by selecting a specific shutdown on the screen and pressing the "Acknowledge" button. The "Acknowledge All" button may be used. Use caution because the button will acknowledge all alarms that have not been acknowledged.A solid "SUMMARY SHUTDOWN" lamp indicates that active shutdowns exist and the shutdowns have been acknowledged at the operator interface. The "SUMMARY ALARM" lamp will remain illuminated until the situation is resolved. When a shutdown occurs, the "Air Shut-Off" damper closes and the engine will stop. The status of the shutdowns will continue to be annunciated on the operator interface. The status of the shutdowns will continue to be indicated by the "SUMMARY SHUTDOWN" lamp. The following conditions must be met before the machine can be restarted:
The shutdown condition must be cleared.
The "Engine Control Switch" must be placed in the "Off/Reset" position.
The "Air Shutoff Damper" must be reset.Note: The "Air Shutoff Damper" is also indicated on the "Air System" screen of the monitor.The shutdown should also be acknowledged at the customer interface. This will clear the status of the shutdown. The "SUMMARY SHUTDOWN" lamp is reset. The shutdown should be acknowledged before the "Engine Control Switch" is placed in the "Off/Reset" position. This will ensure that a time stamp is present and that a date stamp is present. If the communication from the PLC to the operator interface fails, an "Acknowledge All" command can be executed by placing the "ACKNOWLEDGE/LAMP TEST" switch in the "ACKNOWLEDGE" position."SUMMARY ALARM" Indicator Lamp
The "SUMMARY ALARM" lamp displays the status of the alarm system for the engine and for the failure of sensors. An Off "SUMMARY ALARM" lamp indicates that no engine protection alarms or failures in sensors exist within the system.A flashing "SUMMARY ALARM" lamp indicates that an engine protection alarm or a failure in a sensor has occurred and that the alarm has not been acknowledged. A description of the alarms that are active or failures in sensors is displayed on an alarm banner of the operator interface and on the alarm status screens. Alarms and failures in sensors can be acknowledged on the operator interface. Select a specific alarm or shutdown on the screen and press the "Acknowledge" button. The "Acknowledge All" button may be used. Use caution because the button will acknowledge all alarms that have not been acknowledged. A solid "SUMMARY ALARM" lamp indicates that alarms that are active or failures in sensors exist and the conditions have been acknowledged at the operator interface. The "SUMMARY ALARM" lamp will remain illuminated until the condition is resolved. Alarms can be reset in two ways:
Clearing the fault and acknowledging the alarm
Placing the "Engine Control Switch" in the "Off/Reset" position after the engine has reached 0 RPM.Failures in sensors can be cleared in two ways:
Placing the "Engine Control Switch" in the "Off/Reset" position after the engine has reached 0 RPM.
Hold the "ACKNOWLEDGE/LAMP TEST" switch in the "ACKNOWLEDGE" position for five seconds."PLC FAILURE" Indicator Lamp
The "PLC FAILURE" lamp indicates the health of the PLC. When the PLC is correct, the output signal to the "PLC Functioning Alarm Relay" is "O