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TORO GM 325-D Mitsubishi K3D Diesel Engine
Notes
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27
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