Grizzly G0781, Руководство пользователя, Страница: 37 / 52

Model G0781 (Mfd. Since 2/15)
-35-
This mill/drill is equipped with a universal motor
that uses two carbon brushes to transmit elec-
trical current inside the motor. These brushes
are considered to be regular "wear items" or
"consumables" that will need to be replaced dur-
ing the life of the motor. The frequency of required
replacement is often related to how much the
motor is used and how hard it is pushed.
Replace the carbon brushes (Part #P0781005-2)
when the motor no longer reaches full
power, or when the brushes measure less
than
1
⁄
4
" long (new brushes are
5
⁄
8
" long).
Tools Needed: Qty
Hex Wrench 4mm .............................................. 1
Standard Screwdriver #2 ................................... 1
To inspect and replace motor brushes:
1. DISCONNECT MACHINE FROM POWER!
2. Remove motor cover by removing two cap
screws (see
Figure 42).
3. Unscrew one of the brush caps (see
Figure 43).
Figure 43.
Removing motor brush cap.
Figure 44.
Inserting new motor brush.
4. Remove old brush assembly. If brush is
worn down to less than
1
⁄
4
'', replace it with
a new one. Otherwise, re-install old brush
(see
Figure 44).
5. Replace brush cap to secure brush.
6. Repeat Steps 3–5 for second brush assem-
bly on other side of motor.
7. Replace motor cover.
Note: Run mill/drill at a medium spindle
speed setting for a minimum of five minutes
before performing any workpiece operations.
Replacing Brushes
Figure 42.
Location of motor cover cap screws.
Cap Screws
Motor Cover
Brush
Assembly
Brush Cap