Toyota 3b Repair Manual page 213

STARTING SYSTEM
-
Starter
sT-16
4.
INSPECT UNDERCUT DEPTH
Checkthattheundercutdepthiscleanandfreeofforeign
material. Smooth out the edge.
Standard undercut
depth:
O'7 mm
(0'028 in')
Minimum undercut
depth:
O'2 mm (O'OO8
in')
lftheundercutdepthislessthanminimum,correctitwith
a hacksaw blade.
Field
Coil (Field Frame)
1.
INSPECT FIELD COIL FOR OPEN CIRCUIT
Usinganohmmeter,checkthatthereiscontinuitybetween
the lead
wire
and
field coil brush lead'
lf there is no
continuity, replace the field frame'
2.
INSPECT FIELD COIL FOR GROUND
Usinganohmmeter,checkthatthereisnocontinuity
betw-een
the field coil end and field frame'
lf there is
continuity, repair or replace the field frame'
Brushes
INSPECT BRUSH LENGTH
Using calipers, measure the brush length'
Standard
length:
2O'5 mm (O'8O7
in')
Minimum
length:
13'O mm (O'512
in'l
lf
the length
is
less
than minimum, replace
the
brush
holder and
field frame.
Brush Springs
INSPECT BRUSH SPRING LOAD
Take
the pull
scale reading
the
instant
separates from the brush.
Spring installed load:
-
i.z
-
4.0
kg (7.1
-
8'8lb,
31
-
lf the reading is not
within
specification,
springs.
the
brush
sPring
39
N)
replace
the
brush
sr@17
STOO18
L