Question 1

How does de no lubricar translate to an "if" statement here?

Accepted Answer

In Spanish, you can use de + infinitive to create a conditional clause. It means the exact same thing as using si (if) with a conjugated verb, but it tends to sound a bit more formal or technical. To make it negative, you simply place no right before the infinitive, resulting in de no lubricar (if [subject] does not lubricate).

Question 2

Why is the English translation in the passive voice ("is not lubricated") when lubricar is active?

Accepted Answer

The structure de + infinitive doesn't explicitly state who is doing the action. It literally translates to something like "Of/Upon not lubricating the gear." Because English requires a subject in an "if" clause, we often use the passive voice ("If the gear is not lubricated") to keep the statement general, rather than guessing "If you/we do not lubricate..."

Question 3

How would you write this same sentence using a standard si (if) clause?

Accepted Answer

You could say Si no se lubrica el engranaje, el sistema fallará (using the impersonal se) or Si no lubricas el engranaje... (if you don't lubricate...). The meaning is identical, but the de + infinitive version used here is very concise, making it common in manuals, instructions, and formal warnings.

Question 4

Is engranaje the same word I would use for shifting gears in a car?

Accepted Answer

Not usually. Engranaje refers to the actual mechanical, interlocking toothed wheels in machinery, or the "gears" of a system in a metaphorical sense. When talking about driving a manual car, you would typically use marchas or velocidades (e.g., cambiar de marcha for "shifting gears").

De no lubricar el engranaje, el sistema fallará.

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