3988225 COVER Caterpillar parts
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F
Rating:
Alternative (cross code) number:
CA3988225
398-8225
3988225
CA3988225
398-8225
3988225
Weight: 0.01 pounds 0 kg.
BACKHOE LOADER,
Compatible equipment models: 3988225:
Information:
Table 1
Tools Needed
6V-7070 Digital Multimeter
4C-4912 Growler Tester
8T-5096 Dial Indicator
8T-0447 Dial Caliper Armature Short Circuit - Test
Illustration 1 g00716053
Armature short circuit check
(3) Armature assembly
(A) Growler tester
Place armature (3) on growler tester (A). The tester needs to be turned to the ON position.
Hold a hacksaw blade against the armature core. Slowly rotate the armature while the blade is against the core.
The blade should not vibrate or the blade should not be attracted to the armature core.
If the blade vibrates or the blade is attracted to the core, the armature has a short. The armature must be rebuilt or replaced. Armature Ground - Test
Illustration 2 g00716055
Armature winding ground test
(3) Armature assembly
Place the multimeter in the "20M Ω" range. Touch one meter lead on each commutator bar and the other lead on the armature core.
Each multimeter reading should be greater than 100,000 Ohms. A meter reading of "0.10" or a value that is greater is acceptable.
If the meter reading is lower than 100,000 Ohms, the armature is grounded. The armature must be rebuilt or replaced. Armature Continuity - Test
Special equipment is needed to test the armature for an open. If the commutator is pitted or the bars are burned, the armature has an open. The armature must be replaced.Armature Runout - Check
Illustration 3 g00716057
Armature runout check
(3) Armature assembly
(4) Commutator
(5) Core
(B) Dial indicator
Check the runout "TIR" of the commutator (4) on the armature assembly (3). Check the "TIR" of the core (5) on the armature assembly (3). The maximum "TIR" that is allowed is 0.13 mm (0.005 inch).
If the "TIR" is too great, the armature must be replaced. Commutator Outside Diameter - Check
Illustration 4 g00716059
Commutator outside diameter check
(4) Commutator
(C) Caliper
Use the caliper (C) to check the outside diameter of commutator (5). The new diameters of the commutator is 58.8 0.10 mm (2.3150 0.0040 inch). The minimum diameters of the commutator is 56.7 mm (2.230 inch).
If the armature is worn, the armature must be replaced.
Illustration 5 g00584885
Depth Of Segment Mica
(X) Depth of segment mica
Measure the depth of segment mica of the commutator . The minimum depth should be 0.64 mm (0.025 inch).
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
If the depth is under the minimum, the segment mica can be undercut. If the mica is undercut, remove all shavings and mica particles.
Cat SIS web machinery list:
Parts cover Caterpillar catalog:
3E5153
COVER-STARTING MOTOR
216, 228, 236, 236B, 236B3, 242B3, 246C, 247, 248, 252B, 252B3, 256C, 257B3, 259B3, 262C, 262C2, 267, 267B, 268B, 272C, 277C, 277C2, 279C, 279C2, 287, 287C, 287C2, 289C, 289C2, 297C, 299C, 3044C, 3054...
216, 228, 236, 236B, 236B3, 242B3, 246C, 247, 248, 252B, 252B3, 256C, 257B3, 259B3, 262C, 262C2, 267, 267B, 268B, 272C, 277C, 277C2, 279C, 279C2, 287, 287C, 287C2, 289C, 289C2, 297C, 299C, 3044C, 3054...
9G0004
COVER AS-TERMINAL
120G, 120H, 120K, 120K 2, 120M, 120M 2, 12G, 12H, 12K, 12M, 130G, 135H, 1390, 140G, 140H, 140K, 140K 2, 143H, 14H, 160G, 160H, 160K, 163H, 16H, 215, 215B, 2384C, 2484C, 24H, 24M, 2590, 30/30, 305.5, 3...
120G, 120H, 120K, 120K 2, 120M, 120M 2, 12G, 12H, 12K, 12M, 130G, 135H, 1390, 140G, 140H, 140K, 140K 2, 143H, 14H, 160G, 160H, 160K, 163H, 16H, 215, 215B, 2384C, 2484C, 24H, 24M, 2590, 30/30, 305.5, 3...
9G8909
COVER-TERMINAL
1090, 1190, 1190T, 120B, 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 1290T, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 130G, 135H, 135H NA, 1390, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H,...
1090, 1190, 1190T, 120B, 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 1290T, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 130G, 135H, 135H NA, 1390, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H,...
9R7980
COVER
120H ES, 12H ES, 140H ES, 143H, 14H NA, 160H ES, 163H NA, 16H NA, 216, 216B, 216B3, 226B, 226B3, 232B, 236, 236B, 236B3, 236D, 242B, 242B3, 242D, 246C, 246D, 247B, 247B3, 252B, 252B3, 256C, 257B, 257B...
120H ES, 12H ES, 140H ES, 143H, 14H NA, 160H ES, 163H NA, 16H NA, 216, 216B, 216B3, 226B, 226B3, 232B, 236, 236B, 236B3, 236D, 242B, 242B3, 242D, 246C, 246D, 247B, 247B3, 252B, 252B3, 256C, 257B, 257B...
7T3111
COVER
414E, 416, 416B, 416C, 416D, 416E, 416F, 420D, 420E, 420F, 422E, 422F, 424B, 424B HD, 424D, 426, 426B, 426C, 428, 428B, 428C, 428D, 428E, 428F, 430D, 430E, 430F, 432D, 432E, 432F, 434E, 434F, 436, 436...
414E, 416, 416B, 416C, 416D, 416E, 416F, 420D, 420E, 420F, 422E, 422F, 424B, 424B HD, 424D, 426, 426B, 426C, 428, 428B, 428C, 428D, 428E, 428F, 430D, 430E, 430F, 432D, 432E, 432F, 434E, 434F, 436, 436...
2131887
COVER-FENDER
414E, 416E, 416F, 420E, 420F, 422E, 422F, 428E, 428F, 430E, 430F, 432E, 432F, 434E, 434F, 442E, 444E, 444F, 450E, 450F
414E, 416E, 416F, 420E, 420F, 422E, 422F, 428E, 428F, 430E, 430F, 432E, 432F, 434E, 434F, 442E, 444E, 444F, 450E, 450F
3366826
COVER
434F, 444F
434F, 444F
4205300
COVER GP-EXHAUST
434F, 444F
434F, 444F
4206359
COVER AS
434F, 444F
434F, 444F
4213753
COVER AS
434F, 444F
434F, 444F
4228089
COVER-BASE
434F, 444F
434F, 444F
4228090
COVER
434F, 444F
434F, 444F
4319144
COVER AS
416F, 420F, 422F, 428F, 430F, 432F
416F, 420F, 422F, 428F, 430F, 432F
2996082
COVER-TERMINAL
120M 2, 12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 14M, 160M 2, 160M 3, 160M 3 AWD, 416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F, 450F, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K L...
120M 2, 12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 14M, 160M 2, 160M 3, 160M 3 AWD, 416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F, 450F, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K L...
3884572
COVER-TERMINAL
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F
3832789
COVER
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F
2761786
COVER-TERMINAL
120M, 120M 2, 12M, 12M 2, 12M 3, 12M 3 AWD, 140M, 140M 2, 140M 3, 140M 3 AWD, 160M, 160M 2, 160M 3, 160M 3 AWD, 236D, 242D, 246D, 24M, 2570C, 257D, 259D, 262D, 2670C, 272D, 272D XHP, 277D, 279D, 287D,...
120M, 120M 2, 12M, 12M 2, 12M 3, 12M 3 AWD, 140M, 140M 2, 140M 3, 140M 3 AWD, 160M, 160M 2, 160M 3, 160M 3 AWD, 236D, 242D, 246D, 24M, 2570C, 257D, 259D, 262D, 2670C, 272D, 272D XHP, 277D, 279D, 287D,...
2775777
COVER-TERMINAL
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F, 525D, 535D, 545D, 555D, AP-600D, AP-655D, BG600D, BG655D, CB-534D, CB-54, CB-564D, CB-64, CD-54, CD-54B, CP-573E, CP-663E, CS-563E, CS-583E, CS-683E, MH...
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F, 525D, 535D, 545D, 555D, AP-600D, AP-655D, BG600D, BG655D, CB-534D, CB-54, CB-564D, CB-64, CD-54, CD-54B, CP-573E, CP-663E, CS-563E, CS-583E, CS-683E, MH...
4484738
COVER AS
420F, 430F, 432F
420F, 430F, 432F
4483760
COVER AS
420F, 430F, 432F
420F, 430F, 432F
3981550
COVER-PROTECTIVE
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F
3625367
COVER
420F, 430F, 432F, 444F
420F, 430F, 432F, 444F
3625366
COVER AS
420F, 430F, 432F, 444F
420F, 430F, 432F, 444F
3607255
COVER AS
420F, 430F, 432F, 444F
420F, 430F, 432F, 444F