3422943 HARNESS AS-CHASSIS Caterpillar parts
312D, 312D L
Rating:
Alternative (cross code) number:
CA3422943
342-2943
3422943
CA3422943
342-2943
3422943
Weight: 23 pounds 10 kg.
EXCAVATOR,
Number on catalog scheme:
39
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Information:
Alternator
(1) Pulley nut. (2) Fan. (3) Shield. (5) Drive frame. (6) Rear frame. (7) Rotor. (8) Bearing. (9) Screws - three. (10) Retainer. (11) Screw. (12) Screws - four. (13) Plate. (14) Nuts - three. (15) Screw. (17) R terminal. (18) Strap. (19) Screws - two. (20) Regulator. (21) Diode trio. (22) Screw. (23) Nut. (24) Strap. (26) Nut. (27) BAT terminal. (28) Strap. (29) Screw. (31) Capacitor. (32) Screw. (33) Rectifier. (35) Stator. (36) Screws - four. (37) Field coil. (38) Bearing. (39) Collar. (40) Collar.Disassemble Alternator
The disassembly and assembly procedures are of the 3T6352 alternator. Other 20-SI alternators are similar.Start by:a. remove alternator.1. Remove pulley nut (1).2. Remove pulley and fan (2). 3. Remove shield (3). Remove four bolts (4) and separate drive frame (5) from rear frame (6). 4. Attach puller as shown. Remove drive frame (5) from rotor (7). As drive frame (5) is separated from rotor (7), collars (40) and (39) are no longer secured. Remove collars (40) and (39). 5. Remove three screws (9) and retainer (10). Use a puller to remove bearing (8) from drive frame (5). 6. Remove screw (11) at the GND terminal. Remove four screws (12) and plate (13) from rear frame (6). 7. Remove three nuts (14) and disconnect the stator leads from rectifier (33).8. Remove screw (15) at the battery terminal of rectifier (33).9. Loosen nut (16). Remove R terminal (17) and strap (18) together.10. Remove two screws (19) at the field oil terminals of regulator (20). Remove diode trio (21).11. Remove screw (22) at the ground terminal of rectifier (33). Remove nut (23) at the ground terminal of regulator (20). Remove strap (24). 12. Remove insulator (25) and loosen nut (26). Remove BAT terminal (27) and strap (28) together.13. Remove screw (29) and regulator (20). 14. Remove screw (30) and capacitor (31).15. Remove screw (32) and rectifier (33). 16. Loosen grommet (34) and remove stator (35) from rear frame (6).17. Remove four screws (36) and remove field coil (37) from rear frame (6). 18. If necessary, remove bearing (38) from rear frame (6).Assemble Alternator
Do not push on inner race of bearing (8) during installation. Damage to bearing (8) can occur. Push against the outer bearing race.
1. Install bearing (8) in drive frame (5). Install retainer (10) with three screws (9). 2. Place collar (39) on shaft of rotor (7). Insert the shaft of rotor (7) through bearing (8) in drive frame (5).3. Place collar (40) on shaft of rotor (7). 4. Install spacers and nut as shown. Fully seat the shaft of rotor (7) in bearing (8). 5. If removed, install bearing (38) in rear frame (6). Use the 1P510 Drive Group. 6. Place field coil (37) in rear frame (6). Install and tighten four screws (36). 7. Place stator (35) in rear frame (6). Position grommet (34) in indentation (41). 8. Place rectifier (33) in rear frame (6). Install and tighten screw (32).9. Place capacitor (31) in rear frame (6). Install and tighten screw
Caterpillar parts catalog:
Parts harness Caterpillar catalog:
311D LRR, 311F LRR, 312D, 312D L, 312D2, 314D CR, 314D LCR, 315D L, 318D2 L, 319D L, 319D LN, 320D, 320D L, 320D LN, 320D LRR, 320D RR, 321D LCR, 323D L, 323D LN, 323D SA, 324D, 324D L, 324D LN, 325D,...
2677694
HARNESS AS-CONTROL
311D LRR, 312D, 312D L, 314D CR, 314D LCR, 315D L, 319D L, 319D LN
311D LRR, 312D, 312D L, 314D CR, 314D LCR, 315D L, 319D L, 319D LN
311D LRR, 312D, 312D L, 315D L, 319D L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 323D L
2677692
HARNESS AS-PUMP
311D LRR, 312D, 315D L, 319D L
311D LRR, 312D, 315D L, 319D L
2677644
HARNESS AS-QUICK COUPLER
311D LRR, 312D, 315D L, 319D, 319D L, 319D LN, 320D, 320D L, 320D LN, 323D L, 323D LN, 323D2 L, 324D, 324D LN, 325D, 325D L, 329D L, 330D L, 330D LN, 336D, 336D L, 336D2, 336D2 L, 345C, 345C L, 345D, ...
311D LRR, 312D, 315D L, 319D, 319D L, 319D LN, 320D, 320D L, 320D LN, 323D L, 323D LN, 323D2 L, 324D, 324D LN, 325D, 325D L, 329D L, 330D L, 330D LN, 336D, 336D L, 336D2, 336D2 L, 345C, 345C L, 345D, ...
2992841
HARNESS AS-SOLENOID
311D LRR, 312D, 312D L, 315D L, 319D L, 345D, 345D L, 349D, 349D L
311D LRR, 312D, 312D L, 315D L, 319D L, 345D, 345D L, 349D, 349D L
311D LRR, 311F LRR, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 313D, 313D2, 313D2 LGP, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D ...
311D LRR, 312D, 312D L, 312D2 L, 313D, 315D L, 318D L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 323D L, 323D LN, 323D SA, 324D, 324D FM, 32...
311D LRR, 312D, 312D L, 313D, 314D CR, 314D LCR, 315D L, 318D L, 319D L, 319D LN
4161802
HARNESS AS-HEATER & AIR COND
311D LRR, 311F LRR, 312D, 312D L, 312D2, 313D, 315D L, 318D2 L, 319D L, 320D, 320D L, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 323D L, 323D2 L, 324D, 324D L, 329D, 329D L, 336D, 336D L, 336D2, 336...
311D LRR, 311F LRR, 312D, 312D L, 312D2, 313D, 315D L, 318D2 L, 319D L, 320D, 320D L, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 323D L, 323D2 L, 324D, 324D L, 329D, 329D L, 336D, 336D L, 336D2, 336...
3068678
HARNESS AS-CHASSIS
312D, 312D L
312D, 312D L
2832729
HARNESS AS-VALVE
312D, 312D L, 312D2
312D, 312D L, 312D2
3529454
HARNESS AS-MONITOR
312D, 315D L, 320D, 320D GC, 323D L, 324D, 329D, 329D L, 336D, 336D L
312D, 315D L, 320D, 320D GC, 323D L, 324D, 329D, 329D L, 336D, 336D L
3422986
HARNESS AS-SOLENOID
312D L
312D L
3508041
HARNESS AS-CHASSIS
312D L
312D L
3508042
HARNESS AS-CAB
312D L, 315D L, 319D L, 319D LN, 345D L, 345D L VG, 349D L
312D L, 315D L, 319D L, 319D LN, 345D L, 345D L VG, 349D L
3778309
HARNESS AS-VALVE
312D L
312D L
3280243
HARNESS AS-SOLENOID
314D LCR
314D LCR
3280174
HARNESS AS-SOLENOID
312D, 312D L
312D, 312D L
3422957
HARNESS AS-PLATFORM
312D, 312D L, 315D L, 319D L, 319D LN
312D, 312D L, 315D L, 319D L, 319D LN
3366356
HARNESS AS-QUICK COUPLER
312D, 312D L, 315D L, 319D L, 319D LN, 320D, 320D L, 323D LN, 323D SA, 324D L, 329D, 329D L, 329D LN, 336D, 336D L, 336D LN, 345D, 345D L, 345D L VG, 349D L
312D, 312D L, 315D L, 319D L, 319D LN, 320D, 320D L, 323D LN, 323D SA, 324D L, 329D, 329D L, 329D LN, 336D, 336D L, 336D LN, 345D, 345D L, 345D L VG, 349D L
3508257
HARNESS AS-CAB
312D, 312D L, 315D L, 319D LN, 320D, 320D L, 320D LRR, 320D RR, 323D L, 323D LN, 323D SA
312D, 312D L, 315D L, 319D LN, 320D, 320D L, 320D LRR, 320D RR, 323D L, 323D LN, 323D SA
3366096
HARNESS AS-LIGHTING
312D, 312D L, 315D L, 319D L, 319D LN, 320D, 320D L, 320D LRR, 320D RR, 323D LN, 323D SA, 324D L, 328D LCR, 329D, 329D L, 329D LN, 330D, 336D, 336D L, 336D LN, 336D2, 345D, 345D L, 345D L VG, 349D L
312D, 312D L, 315D L, 319D L, 319D LN, 320D, 320D L, 320D LRR, 320D RR, 323D LN, 323D SA, 324D L, 328D LCR, 329D, 329D L, 329D LN, 330D, 336D, 336D L, 336D LN, 336D2, 345D, 345D L, 345D L VG, 349D L
312D, 312D L, 315D L, 319D L, 319D LN, 320D, 320D L, 320D LRR, 320D RR, 323D L, 323D LN, 323D SA, 324D L, 328D LCR, 329D, 329D L, 329D LN, 336D, 336D L, 336D LN, 336D2, 345D, 345D L, 345D L VG, 349D L