Inspect Brush Assembly - TOHATSU NB-1000 Service Manual

Inspect Brush Assembly

1. Clean starter motor terminal and hardware (1) with isopropyl
13
alcohol and fine emery cloth and replace brush assembly if
terminal or hardware cannot be restored to original condition.
2. Check brushes (2) and (3) for chips,
13 14 15
fractures, and wear. If not within specifications,
replace brush assembly:
Engine Models
8 / 9.8 - 9.9 / 15 / 18
25 / 30 - 40
3. Check spring tension. lf springs are weak, replace brush assembly.
4. Check continuity with analog multimeter between:
Brush (2) and (3). Replace brush assembly if meter indicates
continuity.
Brush (3) and the motor base (4). Replace brush assembly if meter
indicates continuity.
Brush (3) and the starter motor terminal (1). Replace brush
assembly if meter does not indicate continuity.
Brush (2) and the motor base (4). Replace brush assembly if meter
does not indicate continuity.
1-/ 2-Cylinder
Original Length (a) Repair Limit (b)
0.295 in [7.5 mm] 0.177 in [4.5mm]
0.295 in [7.5 mm] 0.177 in [4.5mm]
ELECTRICAL SYSTEM
15
T2216
T2217
T1519
7-59