Maintenance Section
-218-
16. Clean the fuel filter mounting surface (Figure
5-15, (10)) and apply a small amount of diesel
fuel to the gasket of the new filter.
17. Install the new fuel filter (Figure 5-14, (2)) by
turning it to the right (Figure 5-14, (4)) until it
contacts the mounting surface. Tighten one
additional turn.
18. Open all fuel cocks in the fuel line.
19. Reconnect the fuel filter sensor connector
(Figure 5-14, (1)).
20. Prime the fuel system. See Priming the Fuel
System.
21. Check for fuel leaks.
Governor Lever and Engine Speed
Control (Diesel Engine Only) -
Check, Adjust
4TNE98 & 4TNE94L Diesel Engine Only
The governor lever and engine speed
control(accelerator lever, pedal, etc.) of the
machine are connected together by an accelerator
cable or rod. If the cable becomes stretched, or the
connections loosen, the governor lever may not
respond to change of engine speed control position.
This may make operation of the machine unsafe.
Check the cable periodically and adjust if
necessary. Consult your authorized Yanmar
industrial engine dealer or distributor for the
adjustment procedure.
NEVER force the accelerator cable or pedal to
move. This may deform the governor lever or
stretch the cable and cause irregular operation of
the engine speed control.
Checking and adjusting the governor lever:
1. Check that the governor lever (Figure 5-12, (1))
makes uniform contact with the low idle (Figure
5-12, (2)) and high idle (Figure 5-12, (3)) speed
limit screws when the engine speed control is in
the high idle speed or low idle speed position.
2. If the governor lever does not make contact
with the high idle or low idle speed limit screw,
adjust the accelerator cable.
3. In some engine speed control applications,
loosen the accelerator cable locknut and adjust
the cable so the governor lever makes proper
contact with the high / low idle speed limit
screw.
Figure 5-12
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