Yanmar BY series, Service Manual

Page: 259 / 275

ELECTRICAL AND ECU
12-32
BY Service Manual
Repair
Replacing Fuel Volume Regulator
IMPORTANT
When working on the oil, coolant or fuel
circuits you must protect the alternator from
contamination. Cover alternator with
suitable materials. Failure to comply may
result in an alternator failure.
1. Disconnect battery negative (-) cable.
2. Shut off fuel supply valve at fuel tank.
3. Remove intake manifold and cover intake ports
to prevent foreign objects from entering engine.
See Intake Manifold on page 5-70.
4. Thoroughly clean high-pressure fuel pump.
Figure 12-34
5. Disconnect electrical connector
(Figure 12-34, (1)) .
6. Remove three screws (Figure 12-34, (2)) .
7. Remove fuel volume regulator.
8. Installation is done in the reverse of removal.
Tighten screws to 6.6 N·m (58 in.-lb).
9. Connect battery negative (-) cable.
10. Open fuel supply valve.
11. Bleed fuel system. See Bleeding the Fuel
System on page 6-29.
CAUTION
• 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.
0000013en
CAUTION
Immediately cap or plug all openings to
prevent contamination of system.
0000199en
(1)
(2)