Yanmar 2TNV70 Service Manual page 71

Periodic Maintenance Procedures
NOTICE
• ALWAYS be environmentally
responsible.
• Follow the guidelines of the EPA or other
governmental agencies for the proper disposal of
hazardous materials such as engine oil, diesel
fuel and engine coolant. Consult the local
authorities or reclamation facility.
• NEVER dispose of hazardous materials
irresponsibly by dumping them into a sewer, on
the ground, or into ground water or waterways.
• Failure to follow these procedures may seriously
harm the environment.
Drain the fuel filter / water separator whenever
there are contaminants, such as water, collected in
the bottom of the cup. NEVER wait until the
scheduled periodic maintenance if contaminants
are discovered.
TNV IDI Service Manual
PERIODIC MAINTENANCE
The cup of the separator is made from
semi-transparent material. In the cup is a
red-colored float ring. The float ring will rise to the
surface of the water to show how much needs to be
drained. Also, some optional fuel filter / water
separators are equipped with a sensor to detect the
amount of contaminants. This sensor sends a
signal to an indicator to alert the operator.
Drain the fuel filter / water separator as follows:
1. Position an approved container under the fuel
filter / water separator (Figure 5-7, (1)) to
collect the contaminants.
c
o
(9)
(4)
(3)
(1)
(2)
Figure 5-7
2. Close (Figure 5-7, (2)) the fuel cock
(Figure 5-7, (3)).
3. Turn the retaining ring (Figure 5-7, (4)) to the
left (Figure 5-7, (9)).
4. Carefully remove the cup (Figure 5-7, (1)).
Remove the retaining spring (Figure 5-7, (6))
and float (Figure 5-7, (7)) from the cup. Pour
the fuel into an approved container and dispose
properly. Hold the bottom of the cup with a shop
towel to prevent the fuel from dripping. Wipe up
any spills immediately.
5. Clean the inside of the cup.
6. Inspect the condition of the mesh filter
(Figure 5-7, (10)). Clean the mesh filter if
necessary.
7. Inspect the condition of the O-ring
(Figure 5-7, (11)). Replace the O-ring if
necessary.
(8)
(11)
(5)
(6)
(10)
(7)
0000590A
5-11