Motor Brush Replacement
311990F
17
Motor Brush Replacement
See Wiring Diagram, page 27.
Removal
Replace brushes worn to less than 1/4 in. (6 mm).
Brushes wear differently on each side of motor, check
both sides.
1.
Relieve pressure
, page 6. Disconnect power cord
from outlet.
2.
Remove kick stand (66) (210
ES
Series A).
3.
Remove two screws (5) and toolbox (3) (190
ES,
210
ES,
Series A).
4.
Remove two screws (11) and front cover (32)
(190
ES
, 210
ES
Series A).
5.
Remove screw (13) and shroud (12) (see illustration
on page 15).
6.
Disconnect motor connector (D) from control board (18).
7.
Cut tie wrap (F).
8.
Locate two yellow wires (C). Cut each yellow wire at
the center.
9.
Pry off two brush caps (A). Remove brushes (B)
from motor.
10. Discard old brush assembly.
11. Rotate fan by hand and blow compressed air into
top brush holder to remove brush dust.
Installation
\
1.
Install new brushes (B) in motor with wires facing
toward front of motor. Install positive (red) brush
lead in top of motor and negative (black) brush lead
in side of motor.
2.
Push each cap (A) into place over brush. Orient
each cap with the two projections on either side of
the brush lead. You will hear a snap when cap is
securely in place.
3.
Strip approximately 1/4 inch (6 mm) of insulation
from end of each yellow wire (C) from motor.
4.
Insert stripped end into end of a butt splice (E) on
new brush assembly.
5.
Crimp ends of butt splice (E) around each wire. Pull
gently on each wire to be sure wire does not pull out
of butt splice.
6.
Connect motor connector (D) to control board (18).
7.
Install shroud (12) with screw (13) (see illustration,
page 15).
8.
Install front cover (32) with two screws (11).
9.
Install toolbox (3) with two screws (5) (190
ES
, 210
ES
Series A).
10. Install kick stand (66) (210
ES
Series A).
Place end of a shop vacuum hose over lower brush
holder. Turn on shop vacuum when you blow com-
pressed air into top brush holder.
Use all new parts included in brush kit. Do not
reuse old parts if new replacement parts are pro-
vided.
ti9133a
30
29
33
A
B
+
-
C
D
E
ti5637b
D
A
Red
Black
