Alfa Romeo 33 owners manual page 100

text version of content this owner's manual page from owners manual to the vehicle Alfa Romeo 33, year of production 1983 - 1995:

IGNITION, STARTING, CHARGING SYSTEM 5. Remove the rotor electromagnet Rotor insulation test assemblage and take the rotor to 1. Set the tester toc? x 1 scale. pieces as for the Bosch starter 2. Put one prod on the commu- motor (see: Bosch Starter Motor, tator and the other on the segment steps IZ., 13. and 14.). pack or shaft. 3. There should be no sign of current flow by the tester. 1 Commutator 4. If greater errors than these are pound or if the commutator is badly scored, put in a new rotor unless it would seem enough to turn the rotor and smooth it with a piece of cloth 1 Electromagnet3 Fork for rotors. 2 Rotor 4 Clutch Bosch and Marelli Starter Motors Max turning depth on nominal 6. If necessary, take the field thickness 4. If the insulation is broken (short winding out of the yoke (see: Bosch 0.25 mm (0.0098 in) circuit) put in another rotor. starter motor. step 15) and the bushes out of the commutator casing CAUTION: Commutator continuity test and out of the drive housing. Repeat steps 2. and 3. for all the 1. Set the tester to thefi x 100 scale. commutator segments. 2. Put the prods on the commu- Rotor shortcircuit test on test tator segments of the pack under test: stand 1. Position the rotor between the 3. The test should show current flow. pole pieces of the rotor testing apparatus and switch on. CHECKS 2. Slowly rotate the rotor and rest AND INSPECTIONS the steel blade on the rotor pack. Before making any electrical inspec- tion thoroughly blow-clean the com- ponents and especially the ends of the winding with compressed air and clean the commutator with a cloth slightly wetted with petrol. Commutator wear 1. Put the rotor on a lathe. 2. Place a magnetic-basedcentesi- 3. The blade will stick to the pack mal dial gauge on the lathe carriage in correspondence with the faulty with the gauge feeler in contact with the commutator0. lead cables if there is a short circuit. 3. Bosch and Marelli Starter Motors If there is no electrical continuity, Eccentricity should not be more than Excitation winding insulation the stated maximum. put in a new rotor. test CAUTION: 1. Set the tester to theax 1 scale. Max permissible commutator 2. Put one prod on the lug of the eccentricity Repeat steps 2. and 3. for all the induction windings and the other pairs of commutator segments. b.06 mm (0.0024 in) prod on the yoke. May 1983 OS-IO

owners manual Alfa Romeo 33

owners manual Alfa Romeo 33 - year of production: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995 - Alfa Romeo 33 owners manual EN