DIAQUIP QHS-400 Operator's Manual - Page 15

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MAINTENANCE AND CLEANING

This machine operates in a very harsh environment. The slurry created by wet cutting and the

dust created by dry cutting gets sucked into the motor's cooling slots and enters the motor. The

slurry of brick and concrete contains salts and other corrosive substances which will severely

shorten the life of the motor or cause electrical shorts if allowed to accumulate.

Therefore, it's essential for the long life of the tool that it be thoroughly cleaned after each use.

Compressed air should be blown through the machine's cooling slots at the back of the

machine while the motor is running.

Keep the machine clean

Check to ensure that the power supply cable is in good condition.

Ensure all screws are tight.

Check the condition of all safety equipment such as the blade guard

Check the blade for damage.

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MAINTENANCE AND CLEANING

The carbon brushes are a normal wearing part and must be replaced when they reach their

wear limit. This machine is equipped with auto-stop carbon brushes. If the machine comes to

a stop unexpectedly, the brushes should be checked. The auto-stop brush design protects the

motor by stopping the machine before the carbon brushes are completely worn out.

Caution: Always replace the brushes as a pair.

To replace:

If the replacement of the power supply cord is necessary, this has to be done by the

manufacturer or their agent in order to avoid a safety hazard.

WARNING: All repairs must be entrusted to an authorized service center. Incorrectly

performed repairs could lead to injury or death.

Do not throw electric power tools into the household waste!

In accordance with the European Directive 2002/96/EG on Waste Electrical and Electronic

Equipment and transposition into national law, used electric power tools must be

collected separately and recycled in an environmentally friendly manner.

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Remove the screw and remove the brush cover.

Using pliers rotate the brush spring out of the way

and slide the old carbon brush out of the brush holder.

Unscrew the screw to remove the brush lead.

The old carbon brush may now be lifted away.

Install a new brush. Installation is the reverse of

removal.

Replace the brush cover.

Brush Cover

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