Isuzu Truper - Isuzu Trooper
1. The maintenance instruction
2. Maintenance service
3. Engines
4. System of decrease in toxicity
5. Fuel system
6. Transmission and a running gear
7. A suspension bracket and a steering
8. Brake system
9. A body
10. A body electric equipment
11. Diagnostics of malfunctions
   11.1. The basic malfunctions of coupling
   11.2. The basic malfunctions of a manual transmission
   11.3. The basic malfunctions карданного a shaft
   11.4. The basic malfunctions of a steering and a suspension bracket
   11.5. The basic malfunctions of the steering mechanism
   11.6. The basic malfunctions of the steering mechanism with the hydraulic booster
   11.7. The basic malfunctions of brakes
   11.8. Characteristic malfunctions of the engine and ways of elimination
   11.9. Characteristic malfunctions in system of cooling of the engine
   11.10. Characteristic malfunctions of a belt of a drive with the goffered profile
   11.11. Characteristic malfunctions of the power supply system (carburettor engines)
   11.12. Characteristic malfunctions of signals of turn and emergency юё=рэютъш 11_13.htm
12. Electroschemes





Isuzu Trooper>> Diagnostics of malfunctions>> The basic malfunctions of brakes

11.7. The basic malfunctions of brakes
THE GENERAL DATA

THE REASON
WAY OF ELIMINATION
Increase in a course of a pedal of a brake
The raised backlashes between back колодками and drums because of malfunction of regulators
To make 10–15 braking, moving serially back and forth. If the pedal course does not change to repair regulators or to replace faulty details.
Deterioration of overlays of back brakes
To check up a residual thickness of overlays, if necessary to replace.
Deterioration brake колодок (forward or back)
To replace in the complete set with one axis.
Air hit in a hydrodrive of brakes

To remove air.

Sticking of a pedal of a brake (under the influence of constant effort the pedal leaves to a body floor)
Leak in a hydrodrive of brakes
Fill a tank to the top mark and ask the assistant to press a brake pedal. Examine supports of brakes, wheel cylinders, hoses, the union, tubes and terminators of pressure of brakes (dosing out valves), establish leak places. Repair or replace faulty details.
Air hit in a hydrodrive of brakes
To remove air.
Mark in a hydrodrive does not correspond to a liquid recommended (at temperature below normal the liquid evaporates)
To wash out system and to fill with a fresh liquid of recommended type.
Deterioration of sealing cuffs of the main cylinder of brakes, teases, deterioration or corrosion on a cylinder surface
To repair or replace the cylinder.
By the first pressing the pedal leaves to a floor, and at the subsequent braking the normal course of a pedal is restored
Залипание колодок on a disk, a drum or details of fastening because of pollution or corrosion
To clear disks, drums, fingers колодок, etc. details.
Pliability of a pedal of a brake (at constant effort the distance of a pedal from a floor decreases)
Leak in a hydrodrive of brakes
Fill a tank to the top mark and ask the assistant to press a brake pedal. Examine supports of brakes, wheel cylinders, hoses, the union, tubes and dosing out valves, establish leak places. Repair or replace faulty details.
Deterioration of sealing cuffs of the main cylinder of brakes, teases, deterioration or corrosion on a cylinder surface

To repair or replace the cylinder.

Reduction of a course of a pedal (the pedal course at braking decreases, it can be accompanied by sensation of "rigidity" of a pedal)
Прихват or залипание pistons of wheel cylinders
To replace or repair a support or wheel cylinders.
Contamination of compensatory apertures in the main cylinder (the liquid does not come back in a tank), прихват or залипание pistons of the main cylinder
To replace or repair the main cylinder.
Jamming of details of the internal device of the vacuum amplifier
To check up the vacuum amplifier in a following order. 1) translate the check point lever in neutral position and start the engine. 2) finish turns of the engine to 1500 rpm, release a pedal of gas and press a brake pedal. 3) slowly releasing a pedal, stop the engine. 4) ask the assistant to disconnect from the amplifier a vacuum hose and the vacuum valve, watching at this time a brake pedal. 5) if a pedal will be displaced to a floor the amplifier is faulty also it it is necessary to replace.
Character of braking very strongly depends on pressing a pedal ("схватывание" brakes)
Pollution колодок a brake liquid or oil
To establish the reason of pollution and to eliminate. To replace колодки in the complete set with one axis.
Wrong adjustment or jamming of cables of a drive of a manual brake
To adjust a manual brake, in case of jamming cables to replace.
Installation of overlays of other type, or easing of overlays on колодках
To replace колодки in the complete set with one axis.
Easing of bolts of a persistent plate of a support
To tighten bolts.
Jamming колодок back brakes in a basic plate колодки
To clear and grease a basic plate and the persistent terminations колодок. At strong development a basic plate to replace. To file the terminations колодок it is forbidden.
The disk of a brake of other type, loss of frictional properties of a disk is established
To establish a disk of corresponding type.
Easing of an arm of a support
To tighten bolts.
"Soft" pedal of a brake
Air hit in a hydrodrive of brakes
To remove air.
Deformation колодок
To replace колодки in the complete set with one axis.
Infringement extra earnings колодок and drums (or disks)
Прошлифовать the interfaced details.
Backlashes between колодками and drums are not adjusted

To adjust.

For a car stop it is required to make the big effort, braking is sometimes accompanied by a pedal pliability
Leak of a hose of the vacuum amplifier of brakes
To tighten the union or to replace a hose.
Bad quality overlays on колодках
To replace колодки in the complete set with one axis.
Deformation, breakage or bend колодок
To replace колодки.
Люфт a support in fingers
Jamming колодок back brakes in a basic plate колодки., to Replace fingers and plugs. To clear and grease a basic plate and the persistent terminations колодок молибденовой with greasing. At strong development a basic plate to replace. To file the terminations колодок it is forbidden.
Прихват pistons of wheel cylinders
To repair or replace cylinders.
The vacuum control valve of the amplifier is faulty
To check up the valve in a following order. 1) start the engine and finish turns of the engine to 1500 rpm, release a pedal of gas and at once stop the engine. 2) after not less 90 сек press a brake pedal. 3) if after 2 (or several) pressing a pedal the effort to brakes weakens, the valve is faulty.
Jamming of details of the internal device of the vacuum amplifier
To check up the amplifier in a following order. 1) stop the engine and some times press a brake pedal that in the amplifier air has come. 2) translate the check point lever in neutral position, press a pedal of a brake and start the engine. 3) if the pedal "will leave" forward (the smaller effort for pedal deduction in the pressed position is felt) the vacuum amplifier is serviceable. Otherwise the amplifier replace.
Contamination of compensatory apertures in the main cylinder (the liquid does not come back in a tank), прихват or залипание pistons of the main cylinder
To replace or repair the main cylinder. To blow apertures the compressed air. It is forbidden to clean apertures a wire, a pencil or other subjects.
Contamination or excess of hoses, tubes or unions
To blow a highway the compressed air. The damaged details to replace.
Pollution of a brake liquid by the oil causing swelling of cuffs and their jamming in cylinders
To replace all cuffs, to wash out system liquid DOT 3 or equivalent.
Insufficient depression on the vacuum amplifier
To adjust or repair the engine.
Bad растормаживание wheels
Pedal jamming on an axis
To grease an axis.
Malfunction of the vacuum amplifier
To check up jamming of a rod and valves of the vacuum amplifier. The faulty amplifier to replace.
Wrong adjustment or jamming of cables of a drive of a manual brake
To adjust a manual brake, in case of jamming cables to replace.
Breakage or loss of elasticity of a returnable spring
To replace a spring, if necessary to replace колодки in the complete set with one axis.
Malfunction of regulators of a backlash between колодками and drums
To repair or replace regulators.
Прихват or залипание pistons of wheel cylinders or the main cylinder
To replace or repair cylinders.
Contamination of compensatory apertures in the main cylinder (the liquid does not come back in a tank)
To blow compressed air.
Car drift at braking
Pressure in tyres differs from norm
To restore pressure to the normal.
Deterioration or damage of bearings of wheels
To replace bearings.
Pollution of overlays on колодках on the one hand
To establish and eliminate the reason of pollution and to replace колодки in the complete set with one axis.
Deformation колодок on the one hand or easing of overlays on колодках
To replace колодки in the complete set with one axis.
Easing or support deformation on the one hand
To tighten bolts or to replace a support.
Infringement extra earnings колодок and drums (or disks)
Прошлифовать the interfaced details.
Support easing on the one hand
To tighten bolts.
Piston jamming in the support cylinder
To replace a support or to repair.
Overlays have dampened
To make a trip with slightly pressed pedal of a brake, to dry overlays.
Easing of bolts of fastening of details of a suspension bracket
To tighten, the worn out details to replace.
Malfunction of a regulator of pressure of antiblocking system
To replace.
Vibration of brakes (it is felt on a pedal)
Pollution or deformation колодок
To replace колодки in the complete set with one axis.
Easing of bolts of an arm of a support
To tighten bolts.
Non-uniform deterioration of a disk (disks)

Перешлифовать or to replace disks in the complete set with one axis.

The raised noise from brakes (squeal, a crash or a gnash)
Deformation колодок
To replace колодки in the complete set with one axis.
Strong corrosion on periphery of disks
To remove a rust.
Deterioration of overlays, колодки adjoin to a disk or a drum the basis., to replace колодки in the complete set with one axis
Прошлифовать a disk (to pierce a drum) or to replace.
Breakage or loss of elasticity of springs колодок (on drum-type brakes)
To replace springs.
The raised friction in a place of contact of a basic plate and the persistent terminations колодок (on drum-type brakes)
To grease the terminations колодок.
Teases, cracks or deep development of disks and drums
To replace disks (drums), to replace колодки in the complete set with one axis.
Are established колодки other type
To replace колодки.
Vibration of a pedal of a brake
Ovality of drums or the raised palpation of disks
To pierce or replace drums. To check up palpation and a thickness of disks, прошлифовать or to replace disks.