Kiểm tra má phanh, xích tải và ắc quy.

Because this is an instruction or command. In Vietnamese, the subject is often omitted when it is obvious from context, especially in manuals, checklists, warning labels, and step-by-step directions.

So Kiểm tra... by itself naturally means something like:

• Check...
• Inspect...

You do not need to say Bạn kiểm tra... unless you specifically want to mention the person doing the action.

It is written as two separate syllables, kiểm tra, because standard Vietnamese spelling separates syllables with spaces. But grammatically and semantically, it functions as one lexical unit meaning to check / to inspect.

This is very common in Vietnamese, especially with Sino-Vietnamese vocabulary.

So you should think of kiểm tra as a single verb expression, even though it is written with a space.

Vietnamese does not mark articles and plural the way English does.

So:

• má phanh can mean brake pad, the brake pad, or brake pads
• ắc quy can mean battery or the battery

The exact interpretation comes from context.

In a maintenance instruction like this, English often adds the and sometimes pluralizes nouns, but Vietnamese simply leaves the nouns in their base form.

Phanh means brake or braking in a general sense.
Má phanh refers more specifically to the brake pad or brake lining/shoe.

So the extra word má makes the meaning more precise. It tells you that the instruction is about a specific brake component, not the whole braking system.

In technical contexts, Vietnamese often uses these more specific compound nouns.

Literally:

• xích = chain
• tải = to carry / load / convey

So xích tải is a technical term for a chain used to carry or transmit load. Depending on the machine or context, English might translate it as:

• load chain
• drive chain
• conveyor chain

So if you see different English translations, that does not necessarily mean the Vietnamese is different; it may just reflect different equipment contexts.

Ắc quy usually means a storage battery, especially a rechargeable battery used in vehicles or machinery, such as a car or motorcycle battery.

By contrast, pin is commonly used for smaller batteries like:

• AA batteries
• AAA batteries
• remote-control batteries
• phone batteries in everyday speech

So in technical or automotive contexts, ắc quy is the more appropriate word.

That is the normal way to list items in Vietnamese, just as in English:

• A, B và C

Here:

• má phanh
• xích tải
• ắc quy

are the three things being checked, and và connects the final item.

Vietnamese usually does not use the serial comma the same way English sometimes does, so A, B và C is the standard pattern.

Yes. Adding hãy makes the imperative more explicit:

• Kiểm tra... = Check...
• Hãy kiểm tra... = Please / Do check...

In manuals, labels, and concise instructions, Vietnamese often leaves out hãy because the command meaning is already clear. So the shorter version sounds natural and efficient.

A rough tone guide is:

• kiểm — dipping tone
• tra — level tone
• má — rising tone
• phanh — level tone
• xích — rising tone
• tải — dipping tone
• và — low falling tone
• ắc — rising tone
• quy — level tone

A rough English-friendly approximation is:

kiểm tra má phanh, xích tải và ắc quy
≈ kee-um tra, ma phanh, sik tai va uk kwee

That approximation is not exact, but it can help as a starting point. In Vietnamese, the tones are very important, especially in technical vocabulary where many words may otherwise sound similar.

It sounds technical and instructional. The vocabulary and the lack of a subject make it feel like something you would see in:

• a maintenance checklist
• an equipment manual
• a safety instruction
• a repair guide

In casual conversation, a speaker might use a fuller sentence, for example by adding a subject or more context. But for procedural language, this short style is very natural.