key «at 13» loosen the nut securing the wire to the traction relay...
...and disconnect the wire end.
To test the traction relay...
... we apply 12 V to the relay output,...
... «minus» - on the body, and connect the ohmmeter to the contact bolts.
In this case, for a working relay, the armature should push the overrunning clutch into the window of the front cover, and the contact bolts should close. We replace the faulty traction relay with a new one.
Loosen the three screws with a slotted screwdriver...
... and remove the traction relay.
We take out the stem with the spring from the relay housing.
We install a new traction relay in the reverse order.
To further disassemble the starter, use a Phillips screwdriver to unscrew the two screws...
...and remove the lid.
To check the condition of the brushes with a screwdriver, unscrew the screw securing the contact wire...
... and, having pressed the spring with a screwdriver, we remove the brush.
In the same way, we remove the three remaining brushes. Replace brushes worn to a height of 12 mm or less.
By connecting an ohmmeter in turn to the terminals of the stator windings, we check them for a short to the case and for an interturn short.
When doing this, make sure that the free winding leads are isolated from the body.
Using a screwdriver, remove the retaining ring.
Remove the washer from the shaft.
key «on 10» loosen the two bolts...
...and take them out.
Separate the parts of the starter...
... and take out the insulating tubes of the bolts.
External inspection check the condition of the collector and windings. Charring of windings is not allowed. With a slight burn of the collector, we clean its plates with a fine abrasive sandpaper. In case of severe burning and wear, it is better to replace the anchor. Seizures and enveloping of metal from bearings on the necks of the armature shaft are eliminated with the finest sandpaper, followed by polishing.
We check the armature windings for a short circuit with an ohmmeter. We replace the defective anchor.
Remove the rubber seal from the drive cover.
Remove the adjusting washer from the armature axis.
Unpin the lever axle.
We knock out the axle with a beard...
... and take out the anchor with the drive.
Using a screwdriver, remove the drive lever.
The drive gear should rotate easily in one direction and not rotate in the other, not have chips and nicks on the lead-in part of the teeth. We replace a worn gear or a faulty overrunning clutch as an assembly.
Supporting the anchor shaft on a wooden block, through the key «at 14» knock down the restrictive ring from the retaining ring.
Using a screwdriver, remove the retaining ring.
We remove the restrictive ring and the overrunning clutch assembly with the drive gear from the shaft.
We assemble the starter in the reverse order.
When installing the restrictor ring (for locking) it is convenient to tighten it with sliding pliers.
We blow out the housing and brush holder with compressed air. We lubricate the driving ring and the plastic surfaces in contact with it with Litol-24. We lubricate the bushings and screw splines of the armature shaft, as well as the freewheel hub with engine oil.
Before connecting the cover to the starter housing, we insert the coupling bolts into the appropriate holes.
Attention! If only one bolt was insulated, when assembling the starter, we put the insulating tube on the one that can touch the copper bus connecting the starter stator windings.
To install the retaining ring, we press the starter armature up through the cover sleeve on the drive side.