Toro Workman 3000 Series Service Manual page 61

6. Release and advance accelerator to find if high idle
speed is erratic (surges). If engine surges more than
twice, turn surge screw clockwise until high idle speed
increases 10 to 50 RPM. Release and advance acceler­
ator to find if engine is still surging. If engine is still surg­
ing, turn screw clockwise to increase high idle an
additional 10 to 50 RPM. High idle should not exceed
3650 RPM and surge screw must not increase high idle
more than 100 RPM. Tighten surge screw locknut.
7. Check low idle setting. If low idle is more than setting
in step 4, the surge screw was turned too far clockwise.
Turn surge screw counterclockwise until the low idle set ­
ting returns to the setting in step 4. Check high idle set­
ting as instructed in step 6.
8. Stop the engine.
NOTE: Engine must NOT be running and return spring
must be attached for the next step (Step 9).
9. Adjust ball joint on accelerator cable to allow 0.200 –
0.350� (5 – 9 mm) of clearance between accelerator
pedal and top of diamond tread floor plate, when a 20 lb.
(9 Kg) force is applied to center of pedal. Tighten lock­
nut.
Workman 3000/4000 Series
5
1. Governor
2. Oil Check plug
3. Oil fill plug (on top)
Page 3 – 23
4
3
6
1
2
Figure 32
4. Governor output lever
5. Surge screw
6. Locknut
Liquid Cooled Gas Engine