Yanmar BY series Spezifikationen PDF herunterladen (Seite 74)

Every 1000 Hours of Operation

Perform the following maintenance every

1000 hours or 4 years of operation,

whichever comes first.

• Checking the Fuel Injection Timing

• Checking the Fuel Injector Pressure

and Nozzle Spray Pattern

• Replacing the Seawater Pump

Impeller

• Adjusting Intake / Exhaust Valve

Clearance

• Lapping the Intake and Exhaust

Valves

Checking the Fuel Injection Timing

See your authorized Yanmar marine dealer

or distributor.

Checking the Fuel Injector Pressure

and Nozzle Spray Pattern

See your authorized Yanmar marine dealer

or distributor.

Checking or Replacing Seawater

Pump Impeller

(

4

)

(

3

)

(

1

)

(

2

)

0004914

Figure 17

1 – Impeller

2 – O-Ring

3 – Cover

4 – Cover Bolts

1. Close the seacock.

2. Drain the seawater cooling system. See

Draining Seawater Cooling System on

page 81.

3. Loosen the cover bolts and remove the

cover and O-ring.

4. Inspect the inside of the seawater pump

with a flashlight. If any of the following

are found, disassembly and

maintenance are required:

• Impeller blades are cracked or

nicked. Edges or surfaces of the

blades are marred or scratched.

• Wear plate is damaged.

5. If no damage is found when inspecting

the inside of the pump, install the O-ring

and cover.

6. If a large amount of water leaks

continuously from the water drain line

below the seawater pump during

operation, replace the mechanical seal.

See your authorized Yanmar marine

dealer or distributor.

PERIODIC MAINTENANCE

68 6LPA Series Operation Manual

© 2007 Yanmar Marine International

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