C.E. Niehoff & Co. C810 Alternator w/External Rectifier Assy Installation - Manual

II170A
Page 1 of 2
C810 Alternator
with External Rectifi er Assembly
Installation Instructions
This symbol is used to indicate
presence of hazards that can cause
minor property damage.
CAUTION
Slip bushing in lower rear
mounting lug must be securely
tightened against mounting
bracket on engine. Failure to
do so can result in broken
mounting lugs or broken upper
mounting bracket.
CAUTION
C810 Alternator
1. C810 alternator has 7” hinge mount.
2. Units are shipped with shaft collar, hardened
washer and locknut. Remove and discard shaft
collar. Install pulley and furnished hardened
washer. Torque locknut to 163 Nm/ 120 lb. ft.
3. Use hardened washers between aluminum sur-
faces and bolt heads and nuts. See Figure 1 for
torque.
External Rectifier Assembly
1. Mounting location of external rectifier assembly
should provide proper cooling and protect rectifi-
er from direct water, road debris, or chemicals.
It can be mounted horizontally or vertically.
2. Using the standard A9-4026 wiring harness, the
external rectifier assembly can be mounted up to
7 feet away from the alternator.
3. Use hardened washers between aluminum
surfaces and bolt heads and nuts. See Figure 2
for torque values.
4. Use a suitable adhesive such as Loctite ® 222
or equivalent on bolts. Follow manufacturer’s
instructions.
Regulator
1. Regulator is located on the bracket that supports
the external rectifier assembly (see Figures 2 and
4).
2. If P terminal is used (located on opposite side of
D+ and IGN terminals), regulator will need to be
removed and electrical connection to P terminal
installed. See step 7 in “Electrical Connections.”
3. See Figure 3 for torque values.
4. Make sure regulator harness is securely plugged
into regulator receptacle. See Figure 4.
Figure 1 - C810 Alternator Installation
M12/0.50
lock nut –
torque to
88 Nm/65 lb. ft.

Hardened
washer
Slip bushing must be tightened against bracket —
see “CAUTION” at left
M12/0.50 in.
Mounting bolt

Hardened
washer

Bracket
on engine
Alternator mounting
bracket on engine

M20x1.5 nut and disk spring washer—
torque to 163 Nm/120 lb.ft.


M10/0.3750 in. Mounting bolt (2 plcs)
Hardened washers

M10/0.3750 in. Locknut (2 plcs)–
torque to 38 Nm/29 lb. ft. 

 
Figure 2 - External Rectifi er Assembly Installation
Locknut –
torque to
54 Nm/40 lb.ft.


Lockwasher

Flat
washer
13 mm/0.5 in.
Mounting bolt
grade 5 or better
(4 places)

Regulator
mounting holes

Figure 3 - Regulator Installation

M5 x .80 screw (4 places) – torque to 8.5 Nm/75 lb. in.