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Workman HDX−D
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Kubota Diesel Engine
Adjustments
Adjust Accelerator Cable
1. Position the machine on a level surface, stop the en-
gine, and engage the parking brake.
2. Check position of the engine speed control lever on
fuel injection pump. The speed control lever should be
contacting the high speed stop screw when the acceler-
ator pedal arm is .200” to .350” (5.08 mm to 8.89 mm)
above the floor plate (Fig. 1).
3. If necessary, throttle control can be adjusted by loos-
ening cable jam nuts and repositioning throttle cable as
necessary. There is no adjustment at the engine high
speed stop bolt. Tighten cable jam nuts after adjustment
has been completed (Fig.2).
4. Start engine and allow it to come to normal operating
temperature.
5. Verify with a phototach that the engine high speed
is 3670 +
50 RPM when the accelerator is fully de-
pressed.
6. Verify with a phototach that the engine low speed is
1450 + 50 RPM when the accelerator is released.
7. Adjust idle stop bolt at accelerator pedal to assure
the cable is loose enough to allow the engine throttle
arm to fully return to idle (Fig. 3). There is no adjustment
at the engine low speed stop bolt.
Figure 1
1. ..200” to .350” (5.08mm to 8.79mm)
1
Figure 2
1. Throttle cable 2. Jam nut
21
Figure 3
1. Idle stop bolt 2. Accelerator pedal arm
1
2