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Old 03-19-2017, 03:34 PM   #1
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Default Safe shift RPM - Cummins 330 Diamond

Been searching for an engine manual for a while, no joy.

Would like to know the max safe RPM for gear shifting for a Cummins 330 diamond.

Thanks in advance.
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Old 03-20-2017, 02:15 PM   #2
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http://www.sbmar.com/docs/performanc...M-90208%5D.pdf

Minimum Idle Speed Setting .................................................. ............................................. RPM 600
Normal Idle Speed Variation .................................................. .......................................... RPM 50

Typically it would be recommended to shift at Idle. So, throttle pulled back to the pin.
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Old 03-20-2017, 09:25 PM   #3
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Thanks shrew. Idle always makes sense, somewhere along the way I ran across the words 'minimum safe' - my guess is that they meant idle.
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