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CAT + Caterpillar D350E II Articulated Truck Service Repair Manual

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Product: ARTICULATED TRUCK

Model: D350E II ARTICULATED TRUCK 2XW

Configuration: D350E Series II Articulated Truck 2XW00001-UP (MACHINE) POWERED BY 3406E Engine

Disassembly and Assembly

26SI Series Alternator

Media Number -RENR1252-01 Publication Date -01/10/1999 Date Updated -09/10/2001

Alternator - Assemble

SMCS - 1405-016

Assembly Procedure

i01167078

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.

Note: Do not strike the diodes. The shock of such an impact can damage the diodes. Use proper tools in order to press the diodes in the mountings.

Illustration 1 g00628072

1. Install 3 diodes (11) in heat sink (12) .

Illustration 2

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Note: Do not strike the bushing. Shocks from striking the housing can cause damage.

2. Press bushing (43) in housing (14) .

3. Install 3 diodes (13) in housing (14) .

Illustration 3

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4. Press collar (42) on rotor (39) .
5. Slide retainer (41) on rotor (39) .
6. Press bearing (40) on rotor (39) .

Illustration 4

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7. Press housing (31) on rotor (39) and bearing (40) .

8. Install 4 screws (38) in housing (31) .

Illustration 5

g00628057

Note: Do not strike the bearing. Shocks from striking the housing can cause damage.

9. Install the inner race. Press bearing (37) into the housing.

Illustration 6

10. Press cap (36) in housing (14) .

g00628043

Illustration 7

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11. Install the coil and support (34) in housing (14). Guide the field leads and the grommet through the hole as the coil is installed in housing (14). Install 3 screws (33) .

Illustration 8

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12. Press the stator (32) and housing (14) together. Guide the stator leads and the grommet through the hole as the stator is installed in housing (14) .

Illustration 9

g00628035

Note: Do not damage exposed stator windings or field windings. Bumping the windings or scraping the windings may break the insulation. Broken insulation may create a short circuit or a ground.

13. Join housing (31) and housing (14). Install 4 bolts (30) .

Illustration 10

g00627853

Note: Many of the alternator's internal components are covered with dielectric grease. If the grease is removed, reapply the grease.

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11

14. Install Insulator (29). Install the heat sink and diode assembly (12) in housing (14) .

12

15. Install separator (28) .

16. Install alternator output terminal (27). Install insulator (26). Install the nut and washer (25) .

17. Install diode trio (24) and install screw (23) .

Illustration
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Illustration
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Illustration 13

g00627832

18. Install the 3 screws and insulators (18). Connect wire (19) .

19. If the "R" terminal is used, install the following components: nut (20), lead (21), the washer and terminal (21) .

Illustration 14

g00627820

20. Install the screw and insulator (16). Connect capacitor lead (17) .

Illustration 15

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Note: The 3 output diodes (11) are located in heat sink (12). These diodes are identical in polarity. Diode (11) has red insulation on the wire. The 3 ground diodes (13) are located in housing (14). These diodes are identical in polarity. Diode (13) has black insulation on the wire.

21. Connect 6 diode leads. Connect 3 phase leads. Connect 3 stator phase leads. Install 3 nuts (15).

Table 1

Alternator Ground

Negative

Current Flow of the Output Diodes

Lead to the Heat Sink

Current Flow of the Ground Diodes

Housing to the Lead Red Wire Black Wire

Illustration 16

22. Install mounting plate (10).

g00627808

Illustration 17

23. Install regulator (9) .

24. Install grounded mounting screw (8) .

g00627804

18

25. Install 2 insulated screws (6). Connect the 3 leads.

Note: The regulator and the mounting plate are coated with dielectric grease. If the grease is removed, reapply the grease.

26. Install nut (7) and connect the wire.

19

27. Install gasket (5) .

Illustration
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Illustration
g00627794

20

28. Position cover (4). Install 7 screws (3) .

21

29. Position plate (2). Install 4 screws (1) .

30. Install the fan, the pulley, the washer, and the pulley nut. Copyright 1993 - 2023 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Thu Mar 9 22:56:54 UTC+0530 2023

Illustration
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Illustration
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Product: ARTICULATED TRUCK

Model: D350E II ARTICULATED TRUCK 2XW

Configuration: D350E Series II Articulated Truck 2XW00001-UP (MACHINE) POWERED BY 3406E Engine

Disassembly and Assembly

26SI Series Alternator

Media Number -RENR1252-01 Publication Date -01/10/1999 Date Updated -09/10/2001

Alternator - Disassemble

SMCS - 1405-015

Disassembly Procedure

Table 1 Required Tools

i01167081

Start By:

A. Remove the alternator. Refer to Disassembly and Assembly, "Alternator - Remove" for the machine that is being serviced.

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

1. Remove the pulley nut, the washer, the pulley, and the fan.

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