4.1.1. Adjustment of the drive of switching off of coupling

In the drive of switching off of coupling the following adjustments are carried out:

Fig. 4-2. Pedal and main cylinder of the drive of coupling: 1 — the case of the main cylinder; 2 — a nest; 3 — a perepuskny (compensation) opening; 4 — laying of the union; 5 — the union; 6 — a lock spring washer; 7 — the piston of the main cylinder; 8 — a sealing ring; 9 — the pusher piston; 10 — a hook; 11 — an arm of pedals of coupling and a brake; 12 — a coupling pedal servo-driver spring; 13 — an ottyazhny spring of a pedal of coupling; 14 — the coupling pedal course limiter; 15 — a coupling pedal; 16 — a piston pusher; 17 — a protective cap; 18 — a lock ring; 19 — an inlet opening; 20 — a sealing ring (the ring valve); 21 — a perepuskny opening of the piston; 22 — a working cavity of the cylinder; 23 — a spring; 24 — laying; 25 — a stopper

— the gap of 0,1-0,5 mm between a pusher and the piston of the main cylinder is established (see fig. 4-2). This gap necessary for full switching off of coupling is regulated by the limiter 14 pedals of coupling. The gap is defined by a free wheeling of a pedal, equal 0,4–2 mm;

Fig. 3-3. Engine mount: 1 — a support casing; 2 — a support of a forward engine mount; 3 — a flange of the block of cylinders; 4 — an arm; 5 — an intermediate plate; 6 — the isolating plastic ring; 7 — a support spring; 8 — the buffer; 9 — a support pillow; 10 — a washer; 11 — a support of a back engine mount; 12 — the remote plug; 13 — a cross-piece of a back engine mount

— the free wheeling of a pusher of the working cylinder, equal 4–5 mm, is regulated by a nut 5 (see fig. 3-3) which is fixed by a lock-nut 6. The size of a free wheeling of a pusher is controlled by a special template.
After performance of the specified adjustments the free wheeling of a pedal of coupling, prior to coupling switching off, has to make 25–35 mm.