Starter 35.3708 assy: 1 - cover on the drive side; 2 - retaining ring; 3 - restrictive ring; 4 - drive gear; 5 - overrunning clutch; 6 - driving ring; 7 - rubber plug; 8 – drive lever; 9 – relay armature; 10 - holding winding of the traction relay; 11 - retracting winding of the traction relay; 12 – a coupling bolt of the relay; 13 - contact plate; 14 - relay cover; 15 - contact bolts; 16 - collector; 17 - brush; 18 - armature shaft sleeve; 19 - cover, from the side of the collector; 20 - casing; 21 - shunt coil of the stator winding; 22 - body; 23 - screw for fastening the stator pole; 24 - anchor; 25 - armature winding; 26 - intermediate ring.
Starter 5722.3708 assy: 1 - armature shaft; 2- «positive» brush; 3 - brush holder; 4 - bracket; 5 - contact bolts; 6 - traction relay; 7 - contact plate; 8 - core of the traction relay; 9 - rod of the traction relay; 10 - holding winding; 11 - retracting winding; 12 – relay armature; 13 - front cover; 14 – drive lever; 15 – lever bracket; 16 - gasket; 17 - the axis of the planetary gear; 18 - drive shaft support with insert; 19 - overrunning clutch; 20 - restrictive ring; 21 - bushing of the front cover; 22 - drive shaft; 23 - outlet ring; 24 - gear with internal teeth; 25 - carrier; 26 - central (leading) gear; 27 - satellite; 28 – armature shaft support with insert; 29 - anchor core; 30 - permanent magnet; 31 - collector; 32 - back cover with a sleeve.
Starter connection diagram: 1 - starter; 2 - storage battery; 3 - generator; 4 - starter enable relay; 5 - ignition switch.
Starter 35.3708 is a four-brush DC motor with mixed excitation and with an electromagnetic two-winding traction relay.
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 a retarded state no more than a | 550
|
| Current consumption at idle, no more than a |
60
|
In the starter housing, four poles with excitation windings are fixed with screws: three serial (successive) and one shunt (parallel). The housing together with the covers is pulled together with two bolts. Anchor - with end collector. The rear end of the armature shaft rotates in a ceramic-metal bushing pressed into the cover on the collector side, and the front end in a bushing pressed into the cover on the drive side.
Freewheel mounted on the drive shaft (overrunning clutch) with drive gear. It transmits torque in only one direction - from the starter to the engine, disengaging them after starting the engine. This is to protect the starter armature from damage due to overspeed.
The traction relay is used to engage the drive gear with the ring gear of the flywheel of the crankshaft of the engine and turn on the power to the starter motor. When the ignition key is turned to position «starter» voltage through an additional relay type 113.3747-10 is supplied to both windings of the traction relay (pulling and holding). After closing the contacts of the traction relay, the retracting winding is turned off.
The voltage of operation of the traction relay should be no more than 9 V at (20±5) °C. If not, there is a problem with the relay or actuator. The serviceability of the drive is determined during inspection after disassembling the starter. The faulty relay is replaced.
Starter 5722.3708 is installed on part of the motors - a four-pole four-brush DC electric motor with excitation from permanent magnets, with a planetary gearbox, a freewheel roller clutch and a two-winding traction relay.
Technical characteristics of the starter 5722.3708
| Rated power, kW | 1,55
|
| Current consumption at maximum power, no more than, A | 375
|
| Consumed current in the inhibited state, no more than, A | 700
|
| Current consumption in idle mode, no more than, A | 80
|
Four permanent magnets are glued to the steel housing of the starter, each is additionally fixed from the inside with a flared aluminum sleeve. The body and covers of the starter are tightened with two studs. The armature shaft rotates in two ceramic-metal inserts installed in the cover and shaft support. Torque from the armature shaft is transmitted to the drive shaft through a planetary gearbox, consisting of a central gear, three planetary gears, a carrier and an internal gear (epicyclic).
Freewheel mounted on the drive shaft (overrunning clutch) with drive gear. It transmits torque in only one direction - from the starter to the engine, disengaging them after starting the engine. This is necessary to protect the gearbox and starter armature from damage due to excessive speed.
The device and operation of the traction relay and the power supply circuit are similar to the starter 35.3708.