Starter 35.3708 – four-brush DC electric motor with mixed excitation and with electromagnetic two-winding traction relay
Four poles with excitation windings are fixed with screws in the starter housing: three series (sequential) and one shunt (parallel).
The housing together with the covers is tightened with two bolts.
Anchor – with end collector. The rear end of the armature shaft rotates in a metal-ceramic sleeve pressed into the cover from the collector side, and the front end rotates in a sleeve pressed into the cover from the drive side.
A freewheel clutch (overrunning clutch) with a drive gear is installed on the drive shaft.
It transmits torque in only one direction - from the starter to the engine, disconnecting them after the engine starts.
This is necessary to protect the starter armature from damage due to excessive rotation speed.
The traction relay is used to engage the drive gear with the flywheel ring gear of the engine crankshaft and turn on the power supply to the starter electric motor.
When the ignition key is turned to the "starter" position, voltage is supplied to both windings of the traction relay through an additional relay of type 113.3747- 10 (pulling and holding).
After the traction relay contacts close, the pull-in winding is disconnected.
The traction relay response voltage should be no more than 9 V at (20±5)°C. If this is not the case, there is a fault in the relay or drive.
The serviceability of the drive is determined by inspection after disassembling the starter. The faulty relay is replaced.
For information on removing the starter, see the article - "Replacing the VAZ-21213 starter".
Technical characteristics of the starter 35.3708
Rated power, kW 1.3
Current consumption at maximum power, no more than, A 290±10
Current consumption in the braked state, no more than, A 550
Current consumption in idle mode, no more than, A 60
Checking and repairing the starter 35.3708
We clean the starter from dirt and install it on the workbench.
Using a 13 mm wrench, loosen the nut securing the wire to the traction relay.
Disconnect the wire tip.
To check the traction relay, apply +12 V to the relay terminal, "minus" to the body, and connect the ohmmeter to the contact bolts.
In this case, the anchor of a serviceable relay should extend the overrunning clutch into the front cover window, and the contact bolts should close.
Replace the faulty traction relay with a new one.
Use a slotted screwdriver to unscrew the three screws
Removing the traction relay
From the case We take out the relay rod with the spring. Install the new traction relay in the reverse order
For further disassembly of the starter, unscrew the two screws with a Phillips screwdriver
Remove the cover.
To check the condition of the brushes, use a screwdriver to unscrew the screw securing the contact wire
Press the spring with a screwdriver and remove the brush.
Use the same method to remove the three remaining brushes.
Replace brushes that are worn to a height of 12 mm or less
Connecting an ohmmeter one by one to the terminals of the stator windings, check them for a short circuit to the housing and for an interturn short circuit.
Make sure that the free terminals of the windings are insulated from the body.
Prying off the retaining ring with a screwdriver.
Removing from the shaft washer.
Using a 10 mm wrench, unscrew the two tie bolts and we take them out
We separate the parts of the starter and take out the insulating tubes of the bolts
We check the condition of the collector and windings by visual inspection.
Charring of the windings is not allowed.
If the collector is slightly burned, we clean its plates with fine abrasive paper.
If the burns and wear are severe, it is better to replace the anchor.
Scuffs and metal galling from bearings on the anchor shaft journals are removed with the finest sandpaper and then polished.
Using an ohmmeter, we check the anchor windings for short circuits.
We replace the faulty anchor.
We take out the rubber seal from the drive cover.
We remove the adjusting washer from the anchor axis.
Unpin the lever axle.
Knock out the axle with a punch
We take out the anchor with drive.
Prying off the drive lever with a screwdriver.
The drive gear should rotate easily in one direction and not rotate in the other, and should not have chips or nicks on the leading part of the teeth.
We replace a worn gear or a faulty overrunning clutch as a whole.
Having supported the armature shaft on a wooden block, we knock the limiting ring off the retaining ring using a 14 mm wrench
Prying it off with a screwdriver, we remove the retaining ring
Remove the limiting ring and the overrunning clutch with the drive gear from the shaft.
Assemble the starter in the reverse order.
When installing the limiting ring (on the retaining ring), it is convenient to tighten it with sliding pliers.
Blow out the housing and brush holder with compressed air.
Lubricate the drive ring and the plastic surfaces in contact with it with Litol-24.
Lubricate the bushings and screw splines of the armature shaft, as well as the hub of the overrunning clutch with engine oil.
Before connecting cover with the starter housing, insert the tie bolts into the corresponding holes.
If only one bolt was insulated, put the insulating tube on the one that can touch the copper busbar connecting the starter stator windings when assembling the starter.
To install the retaining ring, press the starter anchor upwards through the cover bushing from the drive side
