Yanmar 4JH45 Specifications download pdf (Page 55)

ENGINE OPERATION

JH Series Operation Manual 49

12/05

After the Engine has Started

After the engine has started, check the

following items at a low engine speed:

1. Check that the gauges, indicators and

alarm are normal.

• Normal coolant operating temperature

is approximately 76° to 90°C (169° to

194°F).

• Normal oil pressure at 3000 min

-1

is

0.28 to 0.54 MPa (41 to 78 psi).

2. Check for water, fuel or oil leakage

from the engine.

3. Check that the smoke color, engine

vibration and sound are normal.

4. When there are no problems, keep the

engine at low speed with the boat still

stopped to distribute engine oil to all

parts of the engine.

5. Check that sufficient cooling water is

discharged from the seawater outlet.

Operation with inadequate seawater

discharge will damage the impeller of

the seawater pump. If seawater

discharge is too low, stop the engine

immediately. Identify the cause and

repair.

NOTICE

The engine will seize if it is operated

when seawater discharge is too small or

if load is applied without any warming up

operation.

For troubleshooting assistance, see

Troubleshooting After Starting on page

81 or Troubleshooting Chart on page 83

. If necessary, consult authorized

Yanmar dealer or distributor.

REMOTE CONTROL

HANDLE OPERATION

Acceleration and Deceleration

Figure 2

1 – FORWARD or REVERSE

2 – NEUTRAL

3 – REVERSE or FORWARD

4 – Throttle Handle/Shifting Handle

Note: Direction of travel will vary

depending on installation

location.

Use the throttle handle (Figure 2, (4)) to

control acceleration and deceleration.

Move the handle slowly.

Shifting the Engine

WARNING

Sudden Movement Hazard.

The boat will start to move when the

marine gear is engaged:

• Ensure the boat is clear of all

obstacles forward and aft.

• Quickly shift to the FORWARD

position then back to the NEUTRAL

position.

• Observe whether the boat moves in

the direction you expect.

0004513

(1)

(2)

(4)

(3)

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