Engine Speed Adjustments - Toro Workman 3000 Series Service Manual

Engine Speed Adjustments

Adjustments to the engine speed settings are not nor ­
mally necessary unless the throttle linkage, injection
pump, or governor mechanism have been repaired,
rebuilt, replaced or are not operating correctly.
If your machine is not equipped with the optional ta­
chometer, use a vibration-type tachometer to set engine
speed.
WARNING
Engine must be running to do these adjust­
ments. To guard against possible personal
injury, engage parking brake and keep hands,
feet, face and other parts of body away from
fan or other moving parts.
High Speed Adjustment
NOTE: Specified rpm is with no load on engine.
The high speed set bolt has been set properly and
sealed at the factory. Never tamper with the seal unless
necessary.
1. The engine should be at operating temperature. Make
sure the parking brake is engaged.
2. Loosen the lock nut on the high speed set bolt
(Fig. 12).
4. Adjust maximum engine speed to 3600 ±50 rpm by
rotating the high speed set bolt. Tighten the lock nut.
5. Install a wire and lead seal on the high speed set bolt.
Idle Speed Adjustment
NOTE: Specified engine rpm is with no load on engine.
1. The engine should be at operating temperature. Make
sure the parking brake is engaged.
2. Move the throttle control lever to the idle position
(against the stop plate). Open the hood.
3. Loosen the lock nut on the low speed set bolt
(Fig. 12).
4. Adjust idle speed by rotating the low speed set bolt.
Tighten the lock nut.
Engine Model L3Ca-62TG:
Engine Model L3Ea-62TG:
Liquid Cooled Diesel Engine
1500 + 50 rpm
1600 + 50 rpm
Page 4 - 14 Rev. B
Figure 12
Workman 3300-D/4300-D