Yanmar 3TNV82A Service Manual page 110

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.
(2)
(3)
(4)
Figure 5-7
2. Close (Figure 5-7, (2)) the fuel cock
(Figure 5-7, (3)).
3. Loosen the drain cock (Figure 5-7, (4)) at the
bottom of the fuel filter / water separator. Drain
any water collected inside.
4. Hand-tighten the drain cock.
CAUTION
If the fuel filter / water separator is
positioned higher than the fuel level in
the fuel tank, water may not drip out
when the fuel filter / water separator
drain cock is opened. If this happens,
turn the air vent screw on the top of the
fuel filter / water separator 2-3 turns
counterclockwise.
Be sure to tighten the air vent screw
after the water has drained out.
5-24
(1)
0000012C
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Periodic Maintenance Procedures
5. Open the fuel cock (Figure 5-7, (3)).
6. Be sure to prime the diesel fuel system when
you are finished. See Priming the Fuel System
on page 4-13.
7. Check for leaks.
Check Battery
A
DANGER
EXPLOSION HAZARD!
• NEVER check the remaining battery
charge by shorting out the terminals.
This will result in a spark and may
cause an explosion or fire. Use a
hydrometer to check the remaining
battery charge.
• If the electrolyte is frozen, slowly warm
the battery before you recharge it.
• Failure to comply will result in death or
serious injury.
TNV DI Service Manual
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