@Berkshire President posted:Jack: would there have been a need to keep the water and, possibly the coal load, reduced so as not to break the extensions?
According to what I have been told by the "old heads", both the water and oil (coal in the case of the UP 4000s) were kept to a minimum. Thus, the locomotive was turned prior to servicing.
Or were they so robust that the weight of the coal and water didn't matter?
No, they were not THAT robust.
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