Ce-niehoff-co N1388: N7153 Control Unit Assembly/ N7155 B+ Outpu Manuel d'utilisateur télécharger pdf

II0114B

Page 1 of 2

N1388 Alternator

N7153 Control Unit Assembly

and/or N7155 B+ Terminal

Replacement Instructions

1. Remove hardware and cover plates from:

a. top of control unit

b. front of control unit

c. drive end housing

2. Remove and save voltage adjust plug from control

unit assembly (this step is not necessary when

replacing B+ terminal).

3. Carefully remove potting in front of terminal strip

in control unit to expose six terminals.

4. Disconnect two field coil wires, B+ wire, ground

wire, two stator Y-taps, and phase (AC) wire from

terminal strip.

5. Remove and save the hardware attaching the control

unit assembly.

6. Carefully dig out all of the potting inside the control

unit cavity. DO NOT DESTROY ANY INTERNAL

WIRING.

7. Remove control unit assembly from cavity.

8. Clean out any loose debris in exposed cavity hole

and from wire terminals that will be reattached to

the control unit assembly.

9. Replacing control unit assembly ONLY—proceed

to step 19 on page 2.

Replacing B+ terminal—proceed to step 10 at

right.

Figure 1 – Replacing Control Unit Assembly and/or

B+ Terminal on N1388 Alternator

Follow steps 10-18 below to complete B+ terminal

replacement:

10. Remove and save hardware and stud on external B+

terminal.

11. From internal B+ stack, disconnect hardware,

B+ wire, and two rectifier wires.

12. Remove and save hardware attaching the defective

B+ terminal to the housing.

13. Remove defective B+ terminal.

14. Apply bead of Dow Corning® SE9186L RTV

coating or equivalent on mating surfaces between

new B+ terminal plate and drive end housing.

15. Install new B+ terminal in cavity. Use a suitable

adhesive such as Loctite® 222 on three mounting

screws. Torque mounting screws to 4.8 Nm/40 lb. in.

16. Using sandpaper and a cloth, remove all potting

debris from both rectifier wire terminals and B+

wire terminal to ensure the mating faces make

clean contact with each other.

17. Reconnect wiring removed from internal B+ stack in

step 11 according to the stacking order shown in

Figure 2. Torque to 28.2-29.3 Nm/20.3-21.6 lb. ft.

18. Proceed to step 19 on page 2 to complete assembly.

Control unit assembly

B+ wire

Phase

(AC) wire

Ground wire

Two ﬁ eld coil wires

B+

wire

Two

rectiﬁ er

wires

B+

terminal

Flat

washer

Disc

spring

washer

Bolt

Figure 2 – Internal B+ Stacking Order

voltage

adjust

plug

Two stator

Y-taps

1 2

N1388 Alternator 1
Page 2 of 2 2

Résumé du contenu

Page 1 - N1388 Alternator

II0114BPage 1 of 2 N1388 Alternator N7153 Control Unit Assemblyand/or N7155 B+ TerminalReplacement Instructions1. Remove hardware and cover plates fr

Page 2 - Page 2 of 2

19. Apply bead of Dow Corning® SE9186L RTV coating or equivalent on mating surfaces between control unit assembly and drive end housing. 20. I

Commentaires sur ces manuels

Pas de commentaire

Ce-niehoff-co N1388: N7153 Control Unit Assembly/ N7155 B+ Outpu Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Matériel Ce-niehoff-co N1388: N7153 Control Unit Assembly/ N7155 B+ Outpu. C.E. Niehoff & Co. N1388: N7153 Control Unit Assembly/ N7155 B+ Output Stud Replacement Instructions User Manual Manuel d'utilisatio

Résumé du contenu

Commentaires sur ces manuels

Produits connexes et manuels pour Matériel Ce-niehoff-co N1388: N7153 Control Unit Assembly/ N7155 B+ Outpu