Brush Inspection And Replacement; Keep Machine Clean; Failure To Start - Delta MS250 Manual De Instrucciones

BRUSH INSPECTION AND REPLACEMENT

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:
DISCONNECT MACHINE FROM POWER SOURCE!
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.
Fig. 49

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.
D
C
Fig. 48
F
E
Fig. 50
21
A
B
C