Yanmar 3TNV82A-B Service Manual page 246

FUEL SYSTEM
CAUTION
Remove or install the high-pressure fuel
injection lines as an assembly whenever
possible. Disassembling the
high-pressure fuel injection lines from
the retainers or bending any of the fuel
lines will make it difficult to reinstall the
fuel lines.
CAUTION
After marking the position of the pump
drive gear, do not rotate the engine
crankshaft. Rotating the crankshaft will
cause the fuel injection pump to become
misaligned.
CAUTION
Do not loosen or remove the four bolts
retaining the fuel injection pump drive
gear to the fuel injection pump hub. Do
not disassemble the fuel injection pump
drive gear from the hub. Correct fuel
injection timing will be very difficult or
impossible to achieve.
CAUTION
Do not rotate the crankshaft with the
injection pump removed.
CAUTION
Each pressure adjusting shim removed
or added changes the pressure
threshold by approximately 275 psi
(1.9 MPa, 19 kgf/cm
shims increases the threshold pressure.
Removing adjusting shims reduces the
pressure threshold.
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Before You Begin Servicing
CAUTION
Shut down the engine if the fault
indicator comes on.
Continuing running the engine with the
fault indicator being on may result in a
serious malfunction of or damage to the
engine, and will void the engine
warranty.
CAUTION
Do not energize the starter for a period
of longer than 15 seconds.
Take a pause of at least 30 seconds
between energization of the starter.
Otherwise the starter could suffer
damage.
CAUTION
• High-pressure washing not
recommended.
• Avoid using high-pressure washing for
electronic or electric devices installed
in, on or around the engine, including
the E-ECU, relays and harness
couplers.
Otherwise such devices may suffer
malfunction due to water ingress into
them.
TNV DI Service Manual
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