Yanmar marine engine 6LPA-STP2, 6LPA-STZP2. Manual - part 5

PRODUCT OVERVIEW

6LPA Series Operation Manual

12/05

Warning Devices

When a sensor detects a problem during operation, the indicator on the instrument panel
will light and an alarm will sound. Indicators are located on the instrument panel, the alarm
is located on the back of the panel. Under normal operating conditions, the indicators are
off.

• Alarm (Buzzer): If a warning lamp illuminates, the alarm will sound. However, no alarm

will sound when the battery charging lamp illuminates.

• Alarm (Buzzer) Stop Switch: When investigating the cause of an alarm, press the alarm

(buzzer) stop switch.

WARNING

The switch is used to shut the alarm off temporarily. Turn the alarm (buzzer) OFF when
inspecting for cause. Inspect and repair the abnormality immediately.

• Warning Indicators: When operation is normal, the warning indicators are OFF. If an

abnormality is detected, the sensor will trigger the appropriate warning indicator to light.

Battery Low Charge Indicator

When the alternator output is too low, the indicator will light. When
charging begins, the indicator will turn off. No alarm will sound for low
battery charge.

Fresh Water (Coolant) High Temperature Indicator and Alarm

When the coolant temperature reaches the maximum allowable
temperature (95°C [203°F] or higher), the indicator will light and the alarm
will sound. Continuing operation at temperatures exceeding the maximum
limit will result in damage and seizure. Check the load and troubleshoot the
fresh water cooling system.

Engine (Lube) Oil Low Pressure Indicator and Alarm

When the engine oil pressure falls below the specified level, the oil
pressure sensor will send a signal to the indicator causing it to light and the
alarm to sound. Stop operation immediately to avoid damage to the
engine. Check the oil level and troubleshoot the lubrication system.

PRODUCT OVERVIEW

6LPA Series Operation Manual

Alarms

Check that indicators and alarms are working normally when the key is turned to ON.

Fresh Water (Coolant) Level Indicator and Alarm

When the amount of cooling water in the fresh water recovery tank falls
below normal, the sensor will send a signal to the indicator causing it to
light and the alarm to sound. Stop operation immediately to avoid damage
to the engine. Check the water level in the cooling water recovery tank and
troubleshoot the cooling system.

Fuel Filter (Water Separator)

When the water level inside the water separator becomes too high, the
sensor will send a signal to the indicator causing it to light. Drain the water
separator. If operation is continued without draining the water separator,
fuel feed to the engine is restricted and may cause damage to the engine
or fuel injection pump.

Exhaust (Cooling Seawater Flow) Restriction

When the amount of cooling seawater being discharged is too low, the
sensor will activate the warning indicator. Stop operation immediately to
avoid damage to the engine. Check the seawater cooling system for
restriction or damage.

Gear Oil Level (6LPA-STZP2 Only)

When the amount of gear oil falls below normal, the sensor will send a
signal to the indicator causing it to light and the alarm to sound. Stop
engine immediately to avoid damage to the gear device. Check the oil level
in the gear and troubleshoot the gear system.

0004882

Key Switch

OFF ⇒ ON

START ⇒ ON

Engine

Before starting

Running

Alarm

OFF

Indicators

Battery Low Charge Indicator

OFF

Fresh Water (Coolant) High Temperature Indicator

OFF

Engine (Lube) Oil Low Pressure Indicator

OFF

Fresh Water (Coolant) Level Indicator

OFF

Fuel Filter (Water Separator) Indicator

OFF

Exhaust (Cooling Seawater Flow) Restriction Indicator

OFF

Gear Oil Level (6LPA-STZP2 Only)

OFF

PRODUCT OVERVIEW

6LPA Series Operation Manual

12/05

Key (Starter) Switch

Figure 6

Figure 7

The GLOW position (Figure 7, (1)) is the
start aid position. Electric current to the air
heater (if equipped) is turned on.

The START position (Figure 7, (4)) allows
current to the starting motor. When starting
the engine, move the key to the START
position and release. The key will
automatically move to the ON position.

NOTICE

NEVER hold the key in the START position
for longer than 15 seconds or the starter
motor will overheat.

When the key is in the OFF position
(Figure 7, (2))

the electric current is off.

The key can be inserted or removed in this
position.

The ON position (Figure 7, (3)) allows
electrical current to the controls and
equipment and allows the engine to keep
running. To stop the engine, keep the key
switch in the ON position and push the
engine stop button. After stopping the
engine, turn key to OFF position.

Engine Stop Button

Figure 7

Figure 8

Push and hold the stop button
(Figure 8, (1))

on the instrument panel to

stop the engine. When the stop button is
pushed, the solenoid valve on the fuel
injection pumps stops the fuel supply to
the engine.

Press and hold the engine stop button until
the engine has come to a complete stop.

NOTICE

Releasing the engine stop button before
the engine has stopped rotating will cause
the engine to continue to run.

Remote Control (Throttle) Handle

The engine is controlled by the remote
control handle located in the cockpit. The
speed control lever on the engine and
clutch lever on the marine drive are
connected by remote control cables. There
are various models of remote control
handles available. When using a model
other than shown below, consult the
manufacturer's documentation for more
information.

0003622

(1)

(2)

(3)

(4)

(1)

0004881

PRODUCT OVERVIEW

6LPA Series Operation Manual

Morse Remote Control Handle
(Optional)

This is a single-lever remote control handle
connected by a remote cable. It operates
the clutch to NEUTRAL, FORWARD and
REVERSE and controls the engine speed.

Figure 8

MT-3 Top Mount

Figure 9

1 – Reverse High Speed
2 – Reverse Low Speed
3 – Reverse
4 – Neutral
5 – Forward
6 – Forward Low Speed
7 – Forward High Speed

Figure 9

MV Side Mount

Figure 10

1 – Forward High Speed
2 – Forward Low Speed
3 – Forward
4 – Neutral
5 – Reverse
6 – Reverse Low Speed
7 – Reverse High Speed

The operation labels on the handle are:

• FWD - Forward

• NEU - Neutral (Clutch Disengaged)

• Throttle - Position to reduce engine

speed

• REV - Reverse

Starting and Stopping

Put the handle in NEUTRAL. This puts the
clutch in the disengaged position and the
engine at a low speed.

Forward

Move the handle from NEUTRAL to FWD
(forward). This engages the clutch in
forward and simultaneously increases the
engine speed. Pushing the handle further
in the same direction increases engine
speed to full speed.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

0004886

(1)

(2)

(3)

(4)

(5)

(6)

(7)

0004887

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