Más vale que revisemos la placa de aguja.

Más vale means something like it’s better, we’d better, or it’s best.

So:

• Más vale que revisemos la placa de aguja. = We’d better check the needle plate.

It expresses a recommendation with some urgency, often suggesting that doing this is the sensible or safer option.

In this structure, más vale is commonly followed by que + subjunctive.

So the pattern is:

• Más vale que + subjunctive

Examples:

• Más vale que salgamos ya. = We’d better leave now.
• Más vale que lo hables con ella. = You’d better discuss it with her.

The que links the expression más vale to the action that should happen.

Because más vale que normally triggers the present subjunctive.

Here, revisemos is the nosotros form of the verb revisar in the present subjunctive.

Compare:

• Indicative: revisamos = we check / we are checking
• Subjunctive: revisemos = that we check / let’s check (in certain contexts)

After más vale que, Spanish uses the subjunctive because the sentence expresses advice, desirability, or a recommended action rather than a plain statement of fact.

Because revisamos would be the indicative, and after más vale que, Spanish wants the subjunctive.

So:

• Más vale que revisamos... ❌ not correct here
• Más vale que revisemos... ✅ correct

This is one of those fixed grammar patterns you simply get used to:

• Es mejor que + subjunctive
• Conviene que + subjunctive
• Más vale que + subjunctive

Revisemos is:

• first person plural (we)
• present subjunctive
• from the verb revisar

So it refers to we: we check / we should check in this kind of sentence.

In context, it gives the idea:

• We’d better check...

Placa de aguja is a technical sewing-machine term. It refers to the needle plate.

Literally, it is something like:

• plate of needle

But in natural English, you would normally say:

• needle plate

This is a good example of how Spanish often uses noun + de + noun, where English often prefers a noun used like an adjective.

Because in Spanish, technical names and compound-style expressions often use de + noun without an article.

So placa de aguja works like a set term: needle plate.

Similar patterns:

• máquina de coser = sewing machine
• gafas de sol = sunglasses
• cepillo de dientes = toothbrush

If you said placa de la aguja, it would sound more like the plate of the needle, which is less natural if you mean the standard machine part as a named component.

Because placa is a specific noun, and in Spanish it normally takes an article when referring to a particular object:

• la placa de aguja

In context, the speaker likely means a specific needle plate, probably the one on the machine they are dealing with.

Spanish uses definite articles more often than English, so where English might say check needle plate only in labels or notes, Spanish normally says revisar la placa de aguja in a full sentence.

Yes, it often sounds a bit stronger than a simple suggestion.

It usually means:

• It would be wise to...
• We’d better...
• It’s best that...

So it is not a neutral observation. It implies that checking the needle plate is the prudent thing to do, perhaps to avoid a problem.

Yes. Es mejor que revisemos la placa de aguja is grammatical and very natural.

It means roughly the same thing:

• It’s better that we check the needle plate.

The nuance is slightly different:

• Más vale que... = more idiomatic, often a bit more urgent or cautionary
• Es mejor que... = straightforward and slightly more neutral

Both are good Spanish.

No. This is a classic false friend.

In this sentence, revisar means:

• to check
• to inspect
• to examine

So:

• revisar la placa de aguja = check the needle plate

English revise usually means study again or edit/improve, which is not the meaning here.

Yes, that is also possible.

Compare:

• Más vale que revisemos la placa de aguja.
• Más vale revisar la placa de aguja.

Both are natural, but they are built differently:

1. Más vale que + subjunctive

   • focuses on we doing the action
   • We’d better check...

2. Más vale + infinitive

   • more general structure
   • It’s better to check...

The version with revisemos feels a little more directly about us taking action now.

Yes, but that is normal in Spanish.

Spanish often leaves out subject pronouns because the verb ending already shows who is doing the action.

So:

• revisemos already means we check / we should check

You could say:

• Más vale que nosotros revisemos la placa de aguja.

But that would usually only be used for emphasis, for example if you want to stress that we, not someone else, should do it.