Motor Brushes - Graco Reactor E-20 Series Manual

Motor Brushes

Brush Removal
Replace brushes worn to less than 1/2 in. (13
mm). Brushes wear differently on each side of
motor; check both sides. Brush Repair Kit 234037
is available.
1. Turn main power OFF
supply.
Wait 5 min for stored voltage to discharge (E-30 and
E-XP2 models only).
2. Relieve pressure, page 26.
3. Remove motor cover, screw, and washers. Remove
inspection covers, screws, and gaskets from each
end of motor.
4. Push in spring clip (C) to release hooks (H) from
brush holder. Pull out clip and spring (S).
S
One brush has a wire on top for brush wear sig-
nal. Note which side of motor it is on. Unplug at
spade connector provided.
312066ZAD
. Disconnect power
H
C
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5. Loosen terminal screw (R). Pull away brush lead (L),
being careful motor lead terminal (T) remains in
place. Remove and discard brush (B).
B
6. Inspect commutator for excessive pitting, burning, or
gouging. Black color on commutator is normal. Have
commutator resurfaced by qualified motor repair
shop if brushes wear too quickly.
7. Repeat for other side.
Repair
T R L
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