Doosan D20S-5 Operation & Maintenance Manual page 177

loosen the throttle cable lock nut (Figure 5-11, loosen the throttle cable lock nut
(4)) and adjust the cable so the governor lever (4)) and adjust the cable so the governor lever
makes proper contact with the high / low idle makes proper contact with the high / low idle
speed limit screw speed limit screw
4TNE98 Diesel Engine Only 4TNE98 Diesel Engine Only
The The governor governor
control(accelerator control(accelerator
machine are connected together by an accelerator machine are connected together by an accelerator
cable or rod. If the cable becomes stretched, or the cable or rod. If the cable becomes stretched, or the
connections loosen, the governor lever may not connections loosen, the governor lever may not
respond to change o respond to change of engine speed control position.
This may make operation of the machine unsafe. This may make operation of the machine unsafe.
Check Check the the
necessary. necessary.
industrial engine dealer or distributor for the industrial engine dealer or distributor for the
adjustment procedure. adjustment procedure.
NEVER force the accelerator cable or pedal to NEVER force the accelerator cable or pedal to
move. This may deform the governor lever or move. This may deform the governor lever or
stretch the cable and cause irregular operation of stretch the cable and cause irregular operation of
the engine speed control. the engine speed control.
Checking and adjusting the governor lever: Checking and adjusting the governor lever:
1. 1. Check that the governor lever Check that the governor lever (Figure 5-12, (1))
makes uniform contact with the low idle (Figure makes uniform contact with the low
5-12, (2)) and high idle 5-12, (2))
limit screws when the engine speed control is in limit screws when the engine speed control is in
the high idle speed or low id the high idle speed or low idle speed position.
2. 2. If the governor lever does not make contact If the governor lever does not make contact
with the high idle or low idle speed limit screw, with the high idle or low idle speed limit screw,
adjust the accelerator cable. adjust the accelerator cable.
3. 3. 3. In some engine speed control applications, 3. In some engine speed control applications,
loosen the accelerator cable locknut and adjust loosen the accelerator cable locknut and adjust
the cable so the governor lever makes proper the cable so the governor lever makes proper
contact with the high / low idle speed limit contact with the high / low idle speed limit
screw. screw.
(Figure 5-11,
lever lever and and engine engine
lever, lever, pedal, pedal, etc.) etc.)
f engine speed control position.
cable cable periodically periodically and and
Consult Consult your your authorized authorized
(Figure 5-12, (1))
and high idle (Figu (Figure 5- re 5-12, (3)) 12, (3)) speed
le speed position.
-174- -174-
speed speed
of of the the
adjust adjust if if
Yanmar Yanmar
idle (Figure
speed
Maintenance Section Maintenance Section