Gaan die PIN-kode na voordat jy die instelling terugstel.

Because this is a separable verb. The full verb is nagaan, which means to check, inspect, or verify.

In a main clause or command, Afrikaans often splits separable verbs:

• Gaan die PIN-kode na. = Check the PIN code.

So:

• gaan is the verb part
• na is the separable particle

This gaan is not the ordinary verb to go here. It is part of nagaan.

You can compare:

• Ek gaan die PIN-kode na. = I check the PIN code.
• om die PIN-kode na te gaan = to check the PIN code

So the na at the end is completely normal.

Because Gaan die PIN-kode na is a command (the imperative).

In Afrikaans, just like in English, the subject is often left out in commands:

• Check the PIN code
• Gaan die PIN-kode na

The understood subject is you.

If you wanted to include it for emphasis, you could, but normally you do not:

• Jy moet die PIN-kode nagaan = You must check the PIN code

That would sound less like a direct instruction and more like a statement of obligation.

Voordat means before when it introduces a full clause.

So:

• voordat jy die instelling terugstel = before you reset the setting

This is different from using voor directly before a noun.

Compare:

• voordat jy die instelling terugstel = before you reset the setting
• voor die terugstelling = before the reset

So voordat is the right choice because it is followed by a subject + verb clause.

Because voordat introduces a subordinate clause, and in Afrikaans subordinate clauses usually send the verb to the end.

So the pattern is:

• voordat
  • subject + object + verb

That gives:

• voordat jy die instelling terugstel

This is one of the most important word-order patterns in Afrikaans.

Compare:

• Main clause: Jy stel die instelling terug.
• Subordinate clause: ... voordat jy die instelling terugstel.

Notice how the verb changes position and the separable verb joins together in the subordinate clause.

Yes. Terugstel is also a separable verb.

In a normal main clause, it usually splits:

• Jy stel die instelling terug. = You reset the setting.

But in a subordinate clause, it joins together at the end:

• ... voordat jy die instelling terugstel.

So both forms belong to the same verb:

• terugstel = to reset
• stel ... terug = split form in a main clause

This is very common in Afrikaans.

Die is the Afrikaans definite article, meaning the.

So:

• die PIN-kode = the PIN code
• die instelling = the setting

A useful thing for English speakers: Afrikaans does not change the word for the based on gender the way some other languages do. It is simply die for singular and also for plural definite nouns in most cases.

So you do not have to learn separate forms like masculine/feminine/neuter articles.

Yes, jy is the normal informal singular word for you.

For a more formal version, Afrikaans can use u:

• Gaan die PIN-kode na voordat u die instelling terugstel.

That said, in many everyday instructions, manuals, and tech contexts, Afrikaans often uses a direct style that does not feel especially rude even without extra formality.

Because Afrikaans often uses a hyphen in compounds that contain an abbreviation or acronym.

So:

• PIN-kode is standard and natural

This is similar to how Afrikaans frequently links shortened forms and full nouns in compounds for clarity.

You may also hear or see just PIN in some contexts, but PIN-kode is very common and perfectly normal.

Yes. Instelling can mean different things depending on context.

Common meanings include:

• setting in a technical/device/software sense
• adjustment or configuration
• institution in other contexts

In this sentence, because we are talking about checking a PIN code before resetting something, instelling clearly means a setting or device/software setting.

So context is what tells you which meaning is intended.

Yes, sometimes you could.

For example:

• Kontroleer die PIN-kode voordat jy die instelling terugstel.

That would also make sense.

But gaan ... na / nagaan is very idiomatic for check / verify carefully. It often suggests examining something to make sure it is correct.

So:

• nagaan = check/verify/look over
• kontroleer = control/check/inspect, sometimes slightly more formal or technical depending on context

In many practical instructions, gaan ... na sounds very natural.