Astra HD8Ec Скачать руководство пользователя

Страница: 12 / 15

PNEUMATIC SYSTEM - BRAKES

SECTION 16

ASTRA HD8Ec

BRAKING SYSTEM DIAGRAM
8x4 vehicles without tow hook

Air compressor

Air drier

Tank (30 l)

3a Tank (20 l)

Condensation drain valve

Relay valve

Anticompound relay valve

Duplex distributor 7.6 bar

RVM cock

Not used

10 Not used

11 Not used

12 Brake cylinder (24’’x 275) 8x4

13 Not used

14 Combined brake cylinder (16’’X190/7300N)

15 Pressure switch (6.6 bar)

16 Test union

17 Pressure control

18 Pressure gauge (6.5 bar)

A = Hand brake

B = Rear

C = Front

D = Services

Содержание HD8Ec

Страница 1: ... to operators You will frequently see that parts of the text are highlighted as shown below Failure to heed and or correctly carry out procedures technical information and precautions given may cause injury Failure to heed and or correctly carry out procedures technical information and precautions given may cause damage to the vehicle Procedures technical information and precautions which must be ...

Страница 2: ... g kWh Pressure in kPa kilopascal Other units in use kg cm2 kilograms per square centimeter Atm metric atmosphere psi pounds per square inch Conversion I kg cm2 1 Atm I kg cm2 98 1 kPa I kg cm2 0 981 bar I kg cm2 1 bar I kg cm2 14 22 psi I bar 100 kPa I bar 1 02 kg cm2 I bar 14 51 psi I psi 6 9 kPa I psi 0 069 bar I psi 0 0703 kg cm2 I kPa 0 145 psi I kPa 0 0102 kg cm2 I kPa 0 01 bar Conversion va...

Страница 3: ...ening outer screws 30 Nm FRONT SIDE FRONT SIDE stage 2 pretightenig inner screws 120 Nm stage 5 angle outer screws 60º 60593 FRONT SIDE stage 3 angle inner screws 60º FRONT SIDE Figure 8 ENGINE F3B 43 ASTRA HD8Ec SECTION 3 TIGHTENING ORDER OF GEARBOX TO ENGINE BLOCK FASTENING SCREWS ...

Страница 4: ...ector from the lower channel 4 of the cylinder head The filling phase continues until the pumping element has reached its upper end of stroke position 60670 Figure 228 Injection phase The injection phase starts when during the pumping element descending phase the solenoid valve is energized and the fuel valve 1 closes Delivery start time properly processed by the electronic control unit depends on...

Страница 5: ...ely scaled ratios all engageable in succession and two reverse gears The synchronisers are single cone type Lubrication is by means of a gear pump The double H type gear shift control is equipped with a pneumatically powered servoshift device to improve gear selection and engagement The servoshift is a device consisting of a mechanical pneumatic functional unit and a dual action cylinder The advan...

Страница 6: ...14 8 6 13 3 5 4 7 25 Figure 10 MANUAL GEARBOX 22 ASTRA HD8Ec SECTION 6 ...

Страница 7: ...39593 Figure 37 CAMBER ANGLE CHECK 1 Support 2 Goniometer 3 Cross bar 4 Centering cones 5 Spacer FRONT DRIVE AXLE 21 ASTRA HD8Ec SECTION 12 1 ...

Страница 8: ...are worn Overhaul and replace worn or damaged parts Lubricating oil level low Check there are no leaks from gaskets or axle casing and top up to correct level Half shaft splines to fit the differential crown wheels damaged Overhaul the axle and replace worn or damaged parts Main axle faults 1 Wheel hubs noisy 2 Noise 3 Noise at release 4 Noise during acceleration 5 Cornering noise DIAGNOSTIC 1 YES...

Страница 9: ...rolled device to lock the differential The half shafts coming from the differential transmit the mo tion to the epicyclic gears PICTORIAL CROSS SECTION OF THE DIFFERENTIAL 1 Coupling flange 2 Oil seal 3 Outer seal ring 4 Front bearing 5 Adjusting ring 6 Screw 7 Bevel pinion support 8 Intermediate bearing 9 Adjusting ring 10 Rear bearing 11 Adjusting ring nut 12 Differential housing bearing 13 Shor...

Страница 10: ...g nut 8 Crown wheel carrier 9 Planetary wheel 10 Crown wheel 11 Crown wheel gear 12 Half shaft 13 Bleeder 14 Bracket 15 Shoulder pin 16 Axle casing 17 Bearing shaft 18 Braking unit 19 Phonic wheel 20 Oil cup 21 Supporting ring 22 Seal ring 23 Seal ring 24 Bearing 25 Wheel hub 26 Bearing 27 Bolt Figure 9 REAR AXLE IN TANDEM 13 SECTION 12 5 ASTRA HD8Ec ...

Страница 11: ...m the upper part of the piston to the lower part of the cylinder During the compression stage i e when the shock absorber lengthens and piston goes downwards the oil located under the piston passes directly to the upper part of the cylinder For oil passing from one part of the piston to the other a forcing pressure intervenes acting on the piston and opposing piston movement thus causing suspensio...

Страница 12: ... l 4 Condensation drain valve 5 Relay valve 6 Anticompound relay valve 7 Duplex distributor 7 6 bar 8 RVM cock 9 Not used 10 Not used 11 Not used 12 Brake cylinder 24 x 275 8x4 13 Not used 14 Combined brake cylinder 16 X190 7300N 15 Pressure switch 6 6 bar 16 Test union 17 Pressure control 18 Pressure gauge 6 5 bar A Hand brake B Rear C Front D Services ...

Страница 13: ...stem signal 0019 Earth of MS6 control unit terminal 8 0020 Earth of heater mirror relay excitation device relay control unit 0021 Insulated earth of MS6 control unit terminal 25 0022 Auxiliary heater insulated earth 0023 Earth of flasher light optical indicators 0024 Earth of optical indicators connected to lamp test pushbutton 0025 Earth of emergency optical indicator central safety unit 0027 Ter...

Страница 14: ...120 ASTRA HD8Ec SECTION 17 ...

Страница 15: ... and if necessary remove them All parts of the chassis that are re conditioned are to be protected from oxidation and cor rosion Protection and painting operations are to be carried out accu rately on all the parts involved following any instructions methods and preventive precautions indicated by the paint manufacturers Figure 29 17359 The chassis reconditioning is obtained by wedge heating the p...

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