Since they gave guidance as a range, they could have made the lower end without the equipment and the higher could have reflected the equipment installed in quarter 'x'. With a quick note explaining the wide range.
IE:
Production guidance for 2016 is 175,000 to 250,000 ounces, the upper end of the forecast reflects the anticipated installation of our new crusher during the third quarter. However, there is no guarantee that the equipment installation will be on time, due to possible unforeseen circumstances.
This option has several benefits:
1.) It notifies shareholders of an upcoming equipment purchase.
2.) It explains the benefit of that equipment.
3.) And it covers their butts as a 'forward looking statement'.
Then if things go awry, they can update us, with a new upper guidance and installation time frame, in the third quarter report. That way they can still keep the lower guidance, with a possibility of surprising us in the fourth quarter.
EDIT:
The numbers used above were just pulled out of my @$$. They do not reflect my estimate of where production will end up.
In case I forgot to mention it above, Always Just My Opinion