Delta MS250 Instruction Manual download pdf (Page 21)

1. Remove three screws (A) Fig. 48 and remove the motor

cover (B).

2. The brushes are located in the two holders (C) Fig. 47.

Remove spade type terminal connector (D) and pull out

brush holders (C).

3. Fig. 50 illustrates one of the brushes (E) removed from the

holder (C). When the carbon on either brush (E) is worn

to 3/16" in length or if either spring (F) or shunt wire is

burned or damaged in any way, replace both brushes. If

the brushes are found to be serviceable after re-moving,

reinstall them in the same position.

Brush life varies. It depends on the load on the motor. Check the brushes after the first 50 hours of use for a new machine or after

a new set of brushes has been installed. After the first check, examine them after about 10 hours of use until a replacement is

necessary. To inspect the brushes:

KEEP MACHINE CLEAN

Periodically blow out all air passages with dry compressed air. All plastic parts should be cleaned with a soft damp

cloth. NEVER use solvents to clean plastic parts. They could possibly dissolve or otherwise damage the material.

Wear certified safety equipment for eye, hearing and respiratory protection while using compressed air.

FAILURE TO START

Should your machine fail to start, check to make sure the prongs on the cord plug are making good contact in the

outlet. Also, check for blown fuses or open circuit breakers in the line.

Fig. 48

Fig. 49

Fig. 50

BRUSH INSPECTION AND REPLACEMENT

DISCONNECT MACHINE FROM POWER SOURCE!

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Delta MS250 Instruction Manual Page 21