Pump Motor; Brush Inspection - prime mover smx45 Master Service Manual

F-code Section
PT S1.0
Electric Motors
Version no T-code
001 SMX
Spring
90
Return
C-code
1700

4.1.2. Pump Motor

1. The pump motor will need to be removed from the
2. Push brush back into holder to disengage the

4.1.3. Brush Inspection

Brushes should be inspected for uneven wear and signs of
overheating such as discolored brush shunts and brush
Brush
springs. Check the brush holders for physical damage and
Brush
Shunts make sure they are not loose on the end head or the brush
holder plate. Check the brush springs for correct alignment on
the brush. A brush spring that does not apply equal pressure
on the center of the brush will cause the brush to wear
unevenly. Check for correct clearance and freedom of brush
movement in the holder. If the brushes are worn to the point
that replacement is necessary, the complete brush set should
be replaced (see
Master Service Manual
Pump Motor
Motor End Cover
Brushes
Brushes
Figure 1-2: Pump Motor
hydraulic assembly before inspecting brushes.
Remove screws from motor end cover. Remove
motor end cover to expose the pump motor
brushes.
spring. Disengage the spring on remaining
brushes. To remove brush assembly, remove nuts
and washers from the side of the drive end head.
Remove brush from holder and replace with new
brush. Follow the brush inspection below and
replacement procedures (see
page 91.)
page 91.)
2006-08-04