Honda Accord

of release

Repair and operation of the car



Honda Chord
+ Cars of the Honda Accord brand
+ Settings and routine maintenance
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Engine management
+ Gear shifting box
+ Coupling and power shafts
- Brake system
   System of anti-blocking of brakes (ABS) - the general information and codes of malfunctions
   Replacement of brake shoes of disk brake mechanisms
   Removal and installation of supports of disk brake mechanisms
   Check of a state, removal and installation of a brake disk
   Replacement of boots of drum brake mechanisms of back wheels
   Removal and installation of wheel cylinders
   Removal and installation of the main brake cylinder
   Check of a state and replacement of brake lines and hoses
   Pumping of the brake system
   Check of serviceability of functioning/tightness, removal and installation of assembly of the vacuum amplifier of brakes
   Adjustment of the parking brake
   Replacement of a cable(s) of the drive of the parking brake
   Check of serviceability of functioning, replacement and adjustment of the sensor switch of stoplights
   Check of serviceability of functioning and replacement of the sensor switch of level of brake fluid
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment





Brake system

Specifications

General parameters

Type
Hydraulic, with the vacuum amplifier
Forward brake mechanisms Disk, ventilated
Back brake mechanisms Disk or drum
Parking brake With the mechanical drive
Pedal of a foot brake
Free wheeling, mm 1.6 ÷ 4.8
Height, mm
Models with RKPP 165.1
Models with AT 168.3
Course of the lever of the parking brake, mm
Disk brake mechanisms 152 ÷ 229
Drum brake mechanisms 102 ÷ 178
Gap between a pusher of the vacuum amplifier and the GTTs piston (with a depth of depression of 508 mm of mercury. on the amplifier), mm 0.0 ÷ 0.5
Disk brake mechanisms
Minimum admissible thickness of brake shoes See the Head Nastroyki and routine maintenance
Minimum admissible thickness of a disk See marking on a disk
Maximum admissible size of differences of thickness of a disk (overlapping), mm 0.015
Maximum admissible beating of a disk, mm 0.102
Drum brake mechanisms
Minimum admissible thickness of frictional overlays of brake boots See the Head Nastroyki and routine maintenance
Maximum admissible internal diameter of a drum See marking on a drum
Efforts of tightening of threaded connections N • m
Fixture of the general components of the brake system
Hollow bolt of nipple knot of connection of a brake hose to a support of the brake mechanism (forward or back) 34
Nuts of fastening of GTTs 14.9
Nuts of fastening of an expansion bar of racks of a forward suspension bracket 22
Nuts of fastening of the servo-driver of the vacuum amplifier of brakes 12.4
Bolts of fastening of wheel sensors 9.9
Disk brake mechanisms of forward wheels
Bolts of fastening of a support
4-cylinder models 73
V6 models 49
Bolts of fastening of an anchor bracket of a support 108
Disk brake mechanisms of back wheels
Bolts of fastening of a support 26
Bolts of fastening of an anchor bracket of a support 38
Screws of fastening of a disk to a nave 9.5
Drum brake mechanisms of back wheels
Nuts of fastening of wheel cylinders 9.0

All models of cars considered in the present manual are equipped with the hydraulic brake system with vacuum strengthening. On forward wheels disk brake mechanisms whereas mechanisms of back wheels can have both a disk, and drum design are always installed.

All brake mechanisms are equipped with self-regulators. At the same time compensation of wear of brake shoes of disk mechanisms (forward and back) is carried out automatically whereas, special adjusting devices which activation happens during braking, and also at raising of the parking brake are installed on drum brake mechanisms.

The dual design of the main brake cylinder (MBC) equipped with two separate tanks allows to break a hydraulic path into two, acting independently from each other, a contour. The last means that in case of refusal one of contours, the second continues to work as before, providing adequate braking of the car. Hydraulic contours have a diagonal arrangement. The refusal of any of contours, naturally, leads to decrease in efficiency of braking and is followed by operation of a control lamp on an instrument guard when squeezing a pedal of a foot brake.

Main Brake Cylinder (MBC)

GTTs is established on the assembly of the servo-driver of the vacuum amplifier of brakes fixed on a back partition of a motive compartment. From above on the cylinder the big tank of hydraulic liquid equipped with a plastic cover is located. The tank fastens in the cylinder by means of plugs through passage and a cylindrical pin.

As it was already mentioned above, GTTs has the dual design providing functioning of two independent hydraulic contours. Liquid pressure in each of contours is forced by the individual piston in the main cylinder.

Pressure regulator

Assembly of the valve regulator fastens on a back partition of a motive compartment, near GTTs and provides restriction of pressure in a hydraulic actuator of brake mechanisms of back wheels, preventing their premature blocking at sharp braking. The valve does not interfere with increase in pressure in hydraulic contours of back brake mechanisms only until it does not reach some threshold value, the further growth of pressure is limited.

The regulator is among not maintainable components and in case of failure is subject to replacement assembled.

Vacuum amplifier of brakes

The amplifier uses the depression created in the inlet pipeline for increase in efficiency of functioning of a hydraulic actuator of the brake system. The servo-driver of the vacuum amplifier is fixed on a back partition of a motive compartment.

Parking brake

The control lever of the parking brake is located in interior of the car and influences a draft rod to which couple of driving cables are attached (on one on each of brake mechanisms of back wheels). At raising of the lever on the models equipped with drum back brake mechanisms, cables delay the executive levers attached to assemblies of brake boots in mechanisms of both back wheels. At the same time boots get divorced in the parties, nestling on the working surface of reels. On models with disk brake mechanisms of back wheels levers are attached to actuation mechanisms of screw type in cases of supports. Levers influence pistons of supports, forcing blocks to nestle on brake disks.

Precautionary measures

At service of components of the brake system of cars it is necessary to observe some special precautionary measures:

a) For gas station of the brake system use only hydraulic liquid of the class DOT 3;
b) Frictional overlays of brake blocks / boots may contain noxious to health asbestos. Try not to inhale brake dust, do not blow off it compressed air. Apply to rubbing of components of brake mechanisms only the special cleaning structures;
c) You monitor observance of all required admissions and efforts of tightening of fixture. At service of components use only the serviceable tool. At the slightest doubts ask for the help experts. Remember that serviceability of functioning of brakes is the key to traffic safety;
d) At the slightest signs of violation of serviceability of functioning of the brake system operation of the car has to be suspended!




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