Checking Alternator - BMW R 1100 RT Repair Manual

Checking alternator

L
Note:
Before each Ω measurement, calibrate to zero with
the BMW diagnosis tester:
Connect the positive (yellow) and negative (green)
leads together. Ω-key is to be pressed until the dig-
ital display reads 0.00 Ω.
•
Using BMW Diagnosis tester,
BMW No. 61 1 510, measure resistance between
the sliprings.
Nominal resistance:......................................... 3 Ω
Checking armature for short to ground
(earth)
OL
•
Measure resistance between sliprings and arma-
ture
Measured result:.............................OL = open line
RS120070
RS120060
12.11