6.6.3. Dismantling, check of details and assembly

Dismantling

Fig. 6.3. Pressure regulator drive: 1 – pressure regulator; 2, 16 – bolts of fastening of the regulator of pressure; 3 – pressure regulator drive lever arm; 4 – pin; 5 – pressure regulator drive lever; 6 – pressure regulator drive lever axis; 7 – lever spring; 8 – body arm; 9 – arm of fastening of the regulator of pressure; 10 – elastic lever of the drive of the regulator of pressure; 11 – earring; 12 – earring bracket; 13 – washer; 14 – lock ring; 15 – arm finger; And, In, With — openings

Fig. 6.17. Pressure regulator details: 1 – protective cap; 2 – lock ring; 3 – piston plug; 4 – sealing ring of a rod of the piston; 5 – washers; 6 – spring; 7 – sealing ring of a head of the piston; 8 – piston; 9 – case plug; 10 – lock washer; 11 – pusher; 12 – washer; 13 – sealing rings of a pusher; 14 – pusher plug; 15 – plate; 16 – spring; 17 – laying of a stopper; 18 – stopper; 19 – cap; 20 – pressure regulator case

Turn off bolts 16 and 2 (see fig. 6.3) fastenings of the regulator and disconnect it from an arm 9. Turn out a stopper of 18 (fig. 6.17), remove laying 17, take out a spring 16 and a basic plate 15. Remove a protective cap 1, press 3 pistons the plug, having shifted it in the case. Holding the piston plug in this situation, remove a lock ring 2. Hold the plug 3 until due to effort of a spring 6 it go out of the case; remove it.
Take out the piston 8 with sealants 4 and 7, washers 5, a spring 6. Take out a pusher 11 with sealing rings the 13th plug 14 and a washer 12. If necessary, a special stripper take out the plug 9 from the case.
Check of details. Wash out details isopropyl alcohol or brake fluid and attentively examine them. Surfaces of details should not have damages and noticeable wear.
Check a state and elasticity of a spring of the plug of a pusher. Its length in a free state has to be 13,3 mm, under load of 13,7±1,5 N (1,4±0,15 kgfs) – 7,5 mm.
Replace the damaged and worn-out details, and also sealing rings new.
At the BS-137.000 stand check tightness of the valve of the regulator of pressure, zavaltsovanny in a stopper 18. If it passes liquid, replace a regulator stopper assembled with the valve.
Assembly

Fig. 6.4. Pressure regulator: 1 – pressure regulator case; 2 – piston; 3 – protective cap; 4, 8 – lock rings; 5 – piston plug; 6 – piston spring; 7 – case plug; 9, 22 – basic washers; 10 – sealing rings of a pusher; 11 – basic plate; 12 – pusher plug spring; 13 – ring sealing valve saddles; 14 – valve saddle; 15 – sealing laying; 16 – stopper; 17 – valve spring; 18 – valve; 19 – pusher plug; 20 – pusher; 21 – piston head sealant; 23 – piston rod sealant; 24 – cap; And, D — the cameras connected to the main cylinder; In, With — the cameras connected to wheel cylinders of back brakes; To, M, N — gaps

At assembly grease all details with brake fluid. Install the plug 7 (see fig. 6.4) if it was taken out. Collect the piston 2 together with sealants 21 and 23, washers 22, a spring 6, the plug 5 and insert into the case of 1 regulator. Press the plug 5, having shifted it in the case, insert a lock ring 4. Grease an end face of the plug 5 and the acting part of the piston with lubricant Ditor. Put on a cap 3.
Collect a pusher 20 together with a washer 9, sealing rings 10, the plug 19, a basic plate 11 and insert into the regulator case. Establish a spring 12, laying 15 and wrap a stopper the 16th moment of 39,2-49 N · m (4–5 kgfs · м).
If the cap 24 was lost, establish new so that it rolled in the regulator case on 1–2 mm.