Ce-niehoff-co N3134 Regulator Changeout Instructions User Manual download pdf

II0035APage 1 of 1

N3134 Regulator

Regulator Changeout Instructions

C. E. Niehoff & C

BRUSHLESS ALTERNATOR

on N1231-1 and N1235-1 Alternators

C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633

Removing regulator from N1231-1 alternator

1. Turn off ignition switch. Turn off master

battery disconnect switch (if equipped) or

disconnect batteries (if necessary) to ensure

battery potential is removed from charging

system.

2. Remove wires attached to E and F– terminals

on existing regulator.

3. Unplug alternator-to-regulator harness at

alternator.

4. Remove and discard mounting hardware

attaching regulator to alternator. Remove

regulator/harness.

Re-installing regulator on N1235-1 alternator

1. Set N3134 regulator on N1235-1 alternator.

Use mounting holes shown in Figure 1.

2. Install new mounting hardware (in bag sup-

plied with alternator) as shown in Figure 1.

Coat screw threads with Loctite®* 222 thread

adhesive. Follow instructions on bottle.

Tighten mounting hardware to 10.1 Nm/90

lb. in.

3. Plug alternator-to-regulator harness into

alternator and re-install wires at E and F–

terminals. Torque terminal mounting nuts to

3.4-3.9 Nm/30-35 lb. in.

4. Start engine and verify alternator output/

operation.

* Loctite is a registered trademark of the Loctite Corporation.

Figure 1 - Regulator/Harness Attachment

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Lockwasher

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Washer



Screw TXM-25 PAN 10-32 x .50 –

Torque to 10.1 Nm/90 lb.in.

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Lockwasher



Washer



Screw TXM-25 PAN 10-32 x .50 –

Torque to 10.1 Nm/90 lb.in.



E Terminal:

Torque locknut to

3.4-3.9 Nm/30-35 lb.in.

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F– Terminal:

Torque locknut to

3.4-3.9 Nm/30-35 lb.in.

N7066 harness —

connect this end to alternator



N3134 Regulator 1

Summary of Contents

Page 1 - N3134 Regulator

II0035APage 1 of 1N3134 RegulatorRegulator Changeout InstructionsC. E. Niehoff & Co.BRUSHLESS ALTERNATORSon N1231-1 and N1235-1 AlternatorsC. E. N

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Ce-niehoff-co N3134 Regulator Changeout Instructions User Manual

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