Starter Ford Escort IV

DESCRIPTION

The starting system includes a 4-pole, 4-brush starting motor with an integral positive engagement drive, a starter-ignition switch, neutral start switch (some auto. trans. models), starter relay, and circuit wiring.

Ensure battery is fully charged and cables are clean and properly connected. Check for a short to ground. If problem continues, starter replacement is necessary.

Ensure battery is fully charged and cables are clean and properly connected. If problem continues, starter replacement is necessary.

Remove starter armature shaft and check for corrosion. If no corrosion is present, repair starter or replace slipping drive assembly.

1. Attempt to jump start vehicle. If vehicle starts, battery is defective. If vehicle does not start, remove push-on connector from relay (Red wire with Blue stripe). Ensure connection is clean and relay bracket is grounded.
2. If connections are okay, use a jumper wire and check operation of relay. Put transmission in "P" or "N" position. Remove push-on connector from relay. Using a jumper wire, jump the exposed terminal on starter relay to battery positive post.
3. If vehicle starts, check ignition switch, neutral switch and wiring in starting circuit for open or loose connection. If vehicle does not start, relay must be replaced.

1. Connect test equipment. (Схема №1) Ensure no current is flowing through ammeter and carbon pile rheostat. Disconnect "S" terminal push-on connector from starter relay.
2. Connect a remote control starter switch between "S" terminal and positive battery terminal. Crank engine and observe voltmeter reading. Stop cranking engine and reduce rheostat resistance until voltmeter indicates same reading as that obtained while cranking engine.
3. The ammeter will indicate starter current draw under load. Normal starter load current is 150-250 amps.

Note. Starter no-load test will determine open or shorted windings, rubbing armature, and a bent armature shaft.

1. Connect positive lead of load tester to positive terminal of a fully charged battery. Connect negative lead of tester to negative battery terminal. (Схема №2)
2. Connect voltmeter leads of load tester to positive and negative battery terminals. Connect a jumper wire between negative battery terminal and starter frame. Connect another jumper wire between positive battery terminal and positive terminal of starter motor. Ensure no current is flowing through ammeter.
3. Turn rheostat to maximum counterclockwise position and note voltmeter reading. Disconnect jumper leads from starter motor. Reduce resistance of the rheostat until voltmeter reading is the same as when starter was running. Ammeter should read 80 amps.

ARMATURE OPEN CIRCUIT TEST

An open armature circuit can be detected by inspecting the commutator for evidence of burning. If burning is present, replace armature assembly. Check for damage to other related components.

ARMATURE & FIELD GROUNDED CIRCUIT TEST

Note. This test will determine if field winding insulation has failed, permitting a conductor to contact frame or armature core.

1. Connect negative voltmeter lead to negative battery terminal. Connect positive voltmeter lead to commutator. Connect a jumper wire between positive battery terminal and armature core. If any voltage is indicated, windings are grounded and armature should be replaced.
2. Connect a jumper wire between negative battery terminal and starter frame. Connect negative voltmeter lead to positive battery terminal. Connect positive voltmeter lead to field coil eyelet terminal. If any voltage is indicated, field windings are grounded and should be replaced.

STARTER SPECIFICATIONS