Pickup 4WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1990)
2. INSPECT COMMUTATOR FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between the segments of the commutator. If there is no continuity between any segment, replace
the armature.
Commutator
1. INSPECT COMMUTATOR FOR DIRTY AND BURNT SURFACES
If the surface is dirty or burnt, correct it with sandpaper (No.400) or on a lathe.
2. INSPECT COMMUTATOR CIRCLE RUNOUT
(a) Place the commutator on V-blocks.
(b) Using a dial indicator, measure the circle runout.
Maximum circle runout:
0.05 mm (0.0020 in.)
If the circle runout is greater than maximum, correct it on a lathe.
3. INSPECT COMMUTATOR DIAMETER
Using calipers, measure the commutator diameter.
Standard diameter:
30 mm (1.18 in.)
Minimum diameter:
29 mm (1.14 in.)
If the diameter is less than minimum, replace the armature.
4. INSPECT UNDERCUT DEPTH OF SEGMENT
Check that the undercut depth is clean and free of foreign material. Smooth out the edge.