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(b) Variable and two-speed control
(i) Set the variable speed lever (D) or two-speed control knob (E) in
the idling position
(ii) Loosen the grubscrew (F) on the idling stop (G) and adjust the
idling speed to approximately 1000 rev/min by moving the
control rod (H) towards the gear end to increase the speed or
away from it to decrease the speed
(iii) Set the idling stop against the bracket and tighten the grubscrew.
(iv) Set the speed control to the full speed position. (Variable speed )
(v) Set the control knob to the 'RUN' position (Two-speed )
Fig. 21
(vi) Loosen the locknuts (J) and adjust to full speed or speed
required by screwing in the adjusting screw (K) to increase the
speed or out to decrease it The speed should be set at 8%
above the rated speed as shown on the engine nameplate.
when running without load. ie, 3240 for 3000 rev/min engines
and 3888 for 3600 rev/min engines Tighten the lockouts and fit
new seal and locking wire.
(vii) Recheck the idling speed and adjust if not correct.
Fig 20
51
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