Subaru Legacy/Outback

1999-2003 of release

Repair and car operation



Subaru Legasi, Autbek
+ Cars Subaru Legacy, Outback
+ The operation manual
+ Routine maintenance
+ The engine
+ Systems of cooling, heating
+ The power supply system and release
+ Engine electric equipment
+ Manual box and differential
+ Automatic transmission
+ Coupling
- Brake system
   Specifications
   Brake mechanisms of forward and back wheels - the general information
   Lay brake - a design and a functioning principle
   The pressure valve-terminator - a design and a functioning principle
   Protivootkatnaja system - the device, a functioning and safety measure principle
   System of antiblocking of brakes (ABS) - the general information, a functioning principle
   System of dynamic stabilisation (VDC) - the general information, a functioning principle
   Check of a condition replacement колодок disk brake mechanisms of forward wheels
   Removal, check of a condition and installation of forward brake disks
   Removal, service and installation of disk brake mechanisms of forward wheels
   Check of a condition and replacement колодок disk brake mechanisms of back wheels
   Removal, check of a condition and installation of back brake disks
   Removal, service and installation of disk brake mechanisms of back wheels
   Removal, service and installation of the main brake cylinder (ГТЦ)
   Removal, installation and check of serviceability of functioning of the vacuum amplifier of brakes
   Removal, installation and check of serviceability of functioning of the valve-terminator of pressure
   Replacement of a brake liquid
   Prorolling of a hydraulic path of brake system
   Check of a condition and replacement of flexible brake hoses
   Check of a condition and replacement of tubes of a brake path
   Removal, service, installation and adjustment of a pedal of a foot brake
   Removal, condition check, installation and adjustment of the gauge-switch of stoplights
   Removal, installation, check of a condition and adjustment of the lever of a drive of a lay brake
   Removal, check of a condition and installation of elements тросового a drive of a lay brake
   Removal, installation and adjustment of the mechanism of a lay brake
   Removal, installation, check of a condition and adjustment of components противооткатного devices
   Removal, installation and check of serviceability of functioning of assemblage of the module of management/hydromodulator ABS
   Check of sequence of operation of valves of hydromodulator ABS
   Removal, installation and check of serviceability of functioning of forward wheel gauges ABS
   Removal, installation and check of serviceability of functioning of back wheel gauges ABS
   Removal, installation and check of a condition of rotors of wheel gauges
   Removal, installation and diagnostics of the gauge of overloads (G-gauge)
   Problem diagnostics ABS
   Removal, installation and adjustment of the module of management VDC
   Removal, installation and check of serviceability of functioning of hydromodulator VDC
   Check of sequence of operation of valves of hydromodulators ABS and VDC
   Removal, installation and check of serviceability of functioning of the gauge of withdrawal / cross-section overloads
   Removal, installation and check of serviceability of functioning of the gauge of an angle of rotation of steering wheel VDC
   Removal, installation and check of serviceability of functioning of wheel gauges from rotors
   Removal, installation and check of serviceability of functioning of the switch of deactivation VDC (VDC OFF)
   Problem diagnostics VDC
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment





Removal, installation and check of serviceability of functioning of the vacuum amplifier of brakes

REMOVAL

The scheme of installation of the vacuum amplifier and connection of an executive rod to the lever of a pedal of a foot brake

1 — Nuts
2 — the Cylindrical pin

3 — the Clamp
4 — the Executive rod


Adjustment of position of the gauge-switch of stoplights (rating value of a backlash "And" makes 0.3 mm)

1 — the Gauge-switch of stoplights
2 — the Emphasis

3 — the Pedal of a foot brake


The connection scheme to the brake amplifier of measuring instruments

1 — Manometers
2 — the Vacuum gauge
3 — Transitive a hose

4 — the Vacuum hose
5 — the Dynamometer


Check of tightness of the brake amplifier without loading

1 — Manometers

2 — the Vacuum gauge


Check of tightness of the brake amplifier under loading

1 — Manometers
2 — the Vacuum gauge

3 — the Dynamometer
4 — 20 кГс


 PERFORMANCE ORDER

1. Cock a lay brake.
2. Disconnect a negative wire from the battery.
3. Disconnect electroconducting from the gauge-switch of level of a brake liquid.
4. Disconnect from ГТЦ hydraulic tubes, - at once закупорьте the open ends of lines in order to avoid hit in dirt system.
5. Give fixing nuts and separate from brake amplifier GTTS.

6. Disconnect from amplifier assemblage a vacuum hose.


7. Pass in salon, take a fixing pin and separate a cutting finger of a pusher of the brake amplifier from the lever of a pedal of a foot brake, then give four nuts of fastening of the amplifier to a partition of an impellent compartment.
8. Trying not to hook on brake lines, remove assemblage of the vacuum amplifier from a back partition of an impellent compartment. Attention: the assemblage of the vacuum amplifier Dropped in the course of dismantle is subject to replacement without fail! Remember also that the excessive effort put to a rod of a pusher of assemblage at an angle more 3 concerning axial line is fraught with damage of the cylinder of the power piston.

9. Needlessly do not change length of a rod of a pusher, - if the length has been changed, adjust it so that the size выступания L corresponded to requirements of Specifications.

10. In order to avoid damage of a rubber protective cover of a pusher the removed amplifier laid on a workbench should not be exposed to considerable vertical loadings.

INSTALLATION

 PERFORMANCE ORDER

1. Get assemblage of the vacuum amplifier on the regular place, accurately having passed a pusher rod in an aperture in a partition.
2. Connect a rod to the lever of a pedal of a foot brake and fix a cutting finger a cylindrical pin. Tighten four fixing nuts.
3. Connect to the amplifier a vacuum hose.
4. Establish ГТЦ (see Has undressed Removal, service and installation of the main brake cylinder (ГТЦ)).

5. Measure length of a rod of a pusher, in case of need make corresponding updating.

6. Measure backlash size between a cut of a carving part of the gauge-switch of stoplights and an emphasis of a pedal of a foot brake, - do not rotate the gauge-switch. In case of need result it in norm (0.3 mm) a way отпускания counternuts and updatings of position of the gauge-switch.
7. Grease a connecting finger of fastening of a rod of a pusher for the purpose of minimisation of its deterioration.
8. Fill in in the tank a fresh hydraulic liquid and pump over brake system (the Section Prorolling of a hydraulic path of brake system see).
9. Make trial runs of the car for the purpose of check of serviceability of functioning of brakes, - make sure of absence of signs прихватывания колодок.

CHECK

 During performance of checks the lay brake should be reliably cocked!


Checks without use of measuring devices

Check of tightness of assemblage of the brake amplifier

 PERFORMANCE ORDER

1. For 1-2 minutes start the engine, then muffle it and some times squeeze out a pedal of a foot brake with normal (as at usual braking) effort, - a pedal course should be reduced at each next push, otherwise it is necessary to check up a condition of the control valve and the amplifier of a vacuum hose brought to assemblage. Defective components replace, then repeat check. In the absence of positive changes check up the amplifier by means of measuring devices (see more low).
2. Start the engine, squeeze out a pedal of a foot brake, then again switch off ignition. Keep a pedal of 30 seconds pressed during an order, - its position should not vary, otherwise the amplifier it is necessary to check up with application of measuring devices (see more low).


Check of serviceability of functioning of the brake amplifier

 PERFORMANCE ORDER

1. At the switched off engine some times squeeze out a pedal of a foot brake for depression dump in the working chamber of the vacuum amplifier.
2. Fix a pedal in the squeezed out position and start the engine, - at the serviceable amplifier the pedal should "fail". At negative results of check make testing of the amplifier with application of measuring devices (see more low).


Checks with application of measuring devices

Connect to the brake amplifier measuring instruments.

Check of tightness without loading

 PERFORMANCE ORDER

1. Start the engine and do not suppress it until depth of depression in the brake amplifier will not reach a point And = 66.7 кПа, - a pedal of a foot brake do not squeeze out.
2. Muffle the engine and track vacuum gauge indications. Speed of decrease in depth of depression in the serviceable amplifier makes no more than 3.3 кПа for 15 seconds. At revealing of signs of infringement of tightness it is necessary to check up a condition of the control valve, a vacuum hose, to estimate quality of a welded seam of the case, to make sure of absence of damages of a diaphragm and signs of development of leaks through a plate, a sealant and тарельчатый the valve. In case of need replace assemblage of the vacuum amplifier.


Tightness check under loading

 PERFORMANCE ORDER

1. Start the engine, squeeze out a pedal of a foot brake with effort nearby 20 кГс (196) and, without releasing a pedal, wait lowerings of depth of depression in the brake amplifier to a point In (66.7 кПа).
2. Muffle the engine and track vacuum gauge indications, - speed of falling of depression besides should not exceed 3.3 кПа for 15 seconds. In case of need make corresponding regenerative repair or replace the amplifier.

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