Every 50 Hours Of Operation - Yanmar 6LPA-STP2 Service Manual

Periodic Maintenance Procedures
12/05

Every 50 Hours of Operation

After you complete the initial 50 hour maintenance
procedures, perform the following procedures every
50 hours thereafter or monthly, whichever comes
first
• Draining Water from the Fuel Tank
• Draining Fuel Filter / Water Separator
• Checking Battery Electrolyte Level
(Serviceable Batteries Only)
Draining Water from the Fuel Tank
Figure 4-4
(3)
Figure 4-4
1 – Sediment Bowl
2 – Drain Cock
3 – Fuel Line to Engine
1. Put a pan under the drain cock (Figure 4-4, (2))
to catch fuel.
2. Open the drain cock and drain water and
sediment. Close the drain cock when the fuel is
clean and free of air bubbles.
3. Dispose of waste properly. NOTICE: ALWAYS
be environmentally responsible.
Draining Fuel Filter / Water Separator
Water and sediment can clog the fuel filter and
impair the function of the fuel injection pump and
valve. If heavy deposits of water and sediment are
drained, also drain the fuel tank.
6LPA Service Manual
Figure 4-5
1. Close the fuel cock of the fuel tank.
2. Remove the two mounting screws
3. Loosen the drain plug of the water separator
4. Install housing and mounting screws.
5. Bleed air from the fuel system. See Bleeding
(1)
(2)
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Checking the Battery Electrolyte Level
(Serviceable Batteries Only)
WARNING! Batteries contain sulfuric acid.
NEVER allow battery fluid to come in contact
with clothing, skin or eyes. Severe burns could
result. ALWAYS wear safety goggles and
protective clothing when servicing the battery.
If battery fluid contacts the eyes and / or skin,
immediately flush the affected area with a large
amount of clean water and obtain prompt
medical treatment.
NOTICE: NEVER turn off the battery switch (if
equipped) or short the battery cables during
operation. Damage to the electric system will result.
Note: Battery fluid tends to evaporate in high
© 2007 Yanmar Marine International
PERIODIC MAINTENANCE
( 1 )
( 2 )
Figure 4-5
(Figure 4-5, (1)) and remove the housing
(Figure 4-5, (2)).
and drain off any water or dirt collected inside.
the Fuel System on page 3-21.
temperatures, especially in summer. In
such conditions, inspect the battery
earlier than specified.
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