C.E. Niehoff & Co. C706:A9-4029 Regulator Harness Replacement - Manual (Page 2)

II169B
Page 2 of 3
1. Disconnect existing wiring harness terminals:
a. Slide existing field connector holder from clip.
If the gray fi eld connector is attached with clip...
2. Remove existing wiring harness from housing,
taking the grommet out as well. Discard harness
and grommet.
3. Install wiring harness into notch in plate, making
sure grommet is securely wedged in notch.
4. Reconnect green ground wire and green wire in
housing, Torque screw and lockwasher to 3.4 Nm/
45 lb. in.
5. Re-assemble gray field connector:
a. Assemble new female connector end onto
black and white wires of new harness as
shown in Figure 5.
Figure 3 — Disconnecting Field Connector
Connector holder
Black wire
White wire
FEMALE END
Figure 4 — Thermal Switch Wiring
b. Remove black and white wires from female
end and discard parts of female end of
connector. Do not remove pins from ends of
black and white wires.
c. Disconnect internal B+ connection, saving
hardware for reassembly.
d. Disconnect two green wires from housing.
Save hardware for reassembly.
e. Disconnect existing wiring harness from
thermal switch (see Figure 4):
1) Cut brown wire from existing harness to
thermal switch, leaving enough length
from thermal switch for reassembly, and
strip 1/4 inch of insulation.
2) Leave other brown wire to thermal switch
as-is for reassembly.
Figure 5 — Field Coil Connector Assembly
Leave this wire alone
See step 1e
b. Slide assembled connector onto clip and make
sure it is secure.
c. Use new male end provided in kit only if needed.
6. Using splice and sleeves from kit: crimp, solder,
and insulate brown wire from new harness to ex-
isting brown wire from thermal switch.
7. Reassemble internal B+ connection and hardware
as shown in Figure 6.
Figure 6 — Internal B+ Stacking Order
Hex bolt—torque to 27-28.5 Nm/20-21 lb.ft.
Disc spring washer
Flat washer
Red wire terminal
from capacitor
Thermal switch
Red wires terminal
from harness
Rectifi er terminals