High And Low Idle Checks (Mitsubishi K3D); Checking Idle Speeds (Mitsubishi K3D) - Toro GROUNDSMASTER 325-D Troubleshooting Manual

Commercial rotary mower

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TORO GM 325-D

Troubleshooting:

High and Low Idle Checks.

The idle settings are important for the proper operation and long life of the machine.

Affects of incorrect idle speeds:

1. High idle too slow.

Low power. (Engine not running at full speed)

Slow transport speed. (Hydrostatic transmission input shaft speed too slow)

Poor Quality of cut. (Blade RPM and tip speed too slow)

2. High idle too fast.

Internal engine damage. (Excessive engine RPM can damage crankshaft and bearings)

Hydrostatic transmission damage. (insufficient lubrication for high input shaft speeds)

Engine overheating.

3. Low idle too slow.

Hydrostatic transmission damage.(lack of lubrication)

Checking Idle Speeds

1. Run the engine until it reaches normal operating temperature.

2. Move the throttle lever to the low idle position.

Low idle should be 1500 ± 50.

3. Open the throttle to the high idle position.

High idle should be 3145 - 3200.

Note: if the high and low idle is incorrect, refer to the Operators Manual for the correct adjustment procedures

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Mitsubishi K3D Diesel Engine

Notes

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Groundsmaster 345