C.T.M. HS-559 Service Manual - Page 12

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Maintenance

5‐1

Motor Carbon brushes,

Change of new carbon brush could effectively improve abnormal noise.

Carbon brush is consumables, which wears out after use, hence, in order to sustain motor quality, CTM

would recommend following:

‐

When one carbon brush is worn to 1/2 of its original length, it is necessary to replace 4 carbon brushes

by new ones.

‐

When one carbon is worn out by 2/3 of its original length, 4 carbon brushes must be replaced by new

ones.

‐

Suggested change for brush = one time only

5‐2

Batteries (50ah)

Information for battery voltage,

‐

Normal situation: 12.95V~13.1V

‐

Low battery: Below 12.9v

‐

Dead battery: Below 12v

‐

First charging after receiving: 8hr.

Information for battery storage temperature,

‐

Below 20°C, after full charging, can store 9 month.

‐

Between 20~30°C, after full charging, can store 6 month.

‐

Above 30°C, after full charging, can store 3 month.

Battery maintenance,

Service Manual‐ CTM HS‐559