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SECTION 6
The PTO interlock switch is located to the side of the
PTO lever. To remove or replace this switch, first remove
the battery, turn the steering full left, disconnect the con-
nector, and remove the switch nut. See Fig.
6-2.
The foot pedal interlock switch is located to the side of
the foot pedal.
It is the refrigerator type and presses out
from inside the frame. See Fig. 6-3.
Lighting Circuit
The B-Series incorporates an alternator (12V AC) sys-
tem for lighting only (lights optional on B-81).
A special spring clip washer is used on the hood axle rod
to assure hood electrical ground contact for the headlights.
See Fig. 6-4.
Fig. 6-4 B-Series Hood Spring Clip
Wiring Harness
Harness routing for the B-Series is shown in Fig. 6-5.
Refer to B-Series electrical circuit diagram for connections
when servicing or replacing the entire harness. See Fig. 6-6.
Fig. 6-5 B-Series Wiring Harness
6-2
INT
ERLOCK
SW ITC
H
(CWTCH)
HE
ADLIGHTS
(OPT
IONAL ON
8- 81)
" I
~~'"
r----4-
-
-.J
I
I
I
I
I
I
I
I
I
I
I
I
I
I
J
1
I
I
i
"I
I
1
~I
"'I
I
I
I
I
J
BROWN
LIGHT
SWITCH
(OPTIONAL ON B- 8
1
)
BLUE
Fig_
6-6 B-Series Wiring Diagram
C-SERIES
I gnition System
INT ERLOCK
SWI
TCH
(PTO)
Battery and coil ignition is used in the
C-Series.
The ignition switch continuity test is performed as fol-
lows with the switch totally disconnected:
Position
OFF
RUN
START
Terminals
no continuity
B&R&I&A
B &S& I
Continuity between these terminals in the positions
shown indicates a good
switch.
Do not interchange C and D-Series ignition switch
with B-Series even though they look identical.
Charging System
A 15 amp alternator system is used to supply electrical
power to charge the battery. Battery power then operates
coil ignition, cranking and electrical
accessories.
Regulation
is provided by solid state rectifier/regulator. This "senses"
the condition of the battery and controls and limits the
charge rate.
Since heat is generated, cooling fins are
pro-
vided on the rectifier/regulator. It should be kept uncover-
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