C.E. Niehoff & Co. EPM Installation
C. E. Niehoff & Co
.
BRUSHLESS ALTERNATORS
Electric Power Manager (EPM)
Installation Instructions
DANGER
WARNING
CAUTION
WARNING
This symbol is used to indicate the
presence of hazards that will cause
severe personal injury, death or
equipment damage.
This symbol is used to indicate the
presence of hazards that can cause
severe personal injury, death or
equipment damage.
This symbol is used to indicate the
presence of hazards that can cause
minor personal injury or equipment
damage.
Disconnect battery before removing
leads.Failure to do so can result in
severe personal injury.
14 V
FROM
LOAD
TT
TT
T
1. Install EPM in location specified by vehicle manufacturer. Torque mounting hardware to 3.39 Nm/
30 lb. in. See Figure 2 on page 2.
DANGER
2. Connect cables as shown in Figures 1 and 2 in
proper stacking order. Tighten to specifications
shown in Figure 2.
DANGER
CAUTION
3. Simple wiring schematic is shown on page 2.
4. Test components to make sure they operate properly.
TT
TT
T
Do not exceed recommended
torque. Component damage
will result.
Do not exceed recommended
torque. Component damage
will result.
Support cables within 305 mm/
12 in. of EPM. Failure to do so can
cause component damage.
14 V
FROM
BATTERY
AUX
CIRCUITS
CONNECTOR
EPM
CIRCUITS
CONNECTOR
28 V
FROM
LOAD
TT
TT
T
TT
TT
T
TT
TT
T
TT
TT
T
TT
TT
T
TT
TT
T
LABEL:
WARNING
Disconnect battery
before removing
leads
CAN/J1939
CONNECTOR
Cap must be
kept in place
when connector
is not in use
28 V
FROM
BATTERY
Figure 1 - Cable Arrangement (See Wiring Diagram on Page 2)
II0043APage 1 of 2
Cable
(4 places)
Lockwasher
(4 places)
T
TT
TT
M10 x 1.5 Bolt
(4 places) –
torque to 15 Nm/11 lb. ft.
TT
T
TT
TT
TT
T
DANGER
Do not exceed
recommended torque.
Component damage
will result.
EPM
TT
TT
T
Figure 2 - Stacking Order and T orque
DANGER
Do not exceed
recommended torque.
Component damage
will result.
M5 hardware (4 places) –
torque to 3.39 Nm/30 lb.in.
EPM
N3225
EPM
N1387-1
Figure 3 - Simple Wiring Schematic
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
II0043APage 2 of 2
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