Technical characteristics of the hydraulic brake system (Chevrolet Captiva 1)

General technical characteristics

Application		Values
Front brake discs	Diameter	296 mm
	Thickness	29 mm
	Minimum allowable thickness	27.4
	Lateral runout (in the installed state)	0.04 mm
Rear brake discs	Diameter	303 mm
	Thickness	20 mm
	Minimum allowable thickness	18.4
	Lateral runout (in the installed state)	0.04 mm
Master cylinder	Inner diameter	25.4 mm
	Piston stroke	35 (17/18) mm
Brake caliper diameter	In front	45mm + 45mm (Double)
	Behind	40mm (Single)
Brake booster	Size	9" + 9" (Double)
	Ratio	1st: 7.5:1, 2nd: 11:1 (Double ratio)
Front brake shoe	Thickness	10.5 mm
	Minimum allowable thickness	2 mm
Rear brake shoe	Thickness	9 mm
	Minimum allowable thickness	2 mm
parking brake shoe	Thickness	4 mm

Tightening torques for threaded connections

Application	Н·м	lb-ft	lb-in
Bleed nipple	6	-	53
Brake pipe fittings	16	12	-
Nut securing brake pedal lever to bracket	18	13	-
Front brake hose to caliper mounting bolt	40	30	-
Rear brake hose mounting bolt to caliper	32	24	-

Brake fluid

Brake fluid must meet DOT-4 specifications. Use only clean fluid from a sealed container.

Liquid in contact with air will absorb moisture. The presence of water in the brake fluid can cause the latter to boil and damage rubber parts. Eliminate all leaks. Then add liquid to the reservoir up to the MAX mark.

Clean the master cylinder reservoir cap thoroughly before removing it. Do not allow dirt to enter the brake fluid reservoir.

There is a fluid level sensor in the master cylinder reservoir. When the fluid level drops below the permissible level, the control lamp should light up.

The required brake fluid level is indicated by a mark on the left side of the master cylinder reservoir. If the fluid level is below the MIN mark, check the hydraulic brake system for leaks. Eliminate any leaks. Then add fluid to the reservoir up to the MAX mark.