BENDIX MC-12 MODULATOR CONTROLLER ASSY Guida alla Risoluzione dei Problemi Pagina 12
- Pagina / 70
- Indice
- RISOLUZIONE PROBLEMI
- SEGNALIBRI
Valutato. / 5. Basato su recensioni clienti
10
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Governors and Components
The Governor monitors the air pressure in the supply
reservoir and operates the compressor unloading
mechanism to control whether the compressor builds
air pressure or not.
The Bendix
®
D-2
®
governor is an adjustable piston-
type valve available preset to a choice of pressure
settings. Note: The pressure range between the cut-
in and cut-out pressure is designed into the governor
and is not adjustable. The D-2
®
governor may be
direct-mounted to the compressor or remote-mounted
as desired. Specialized governors are available for
vehicles needing a governor adapted to abnormally
high or low temperatures, as well as a “weatherproof”
model.
The D-2A
™
governor is a non-adjustable version of
the D-2
®
governor.
The D-2
®
/SV-1
™
governor module is a special
combination device used with the Bendix
®
DuraFlo
596
™
air compressor to provide the fast-rising unloader
signal needed by this compressor.
Safety Valves are used in an air brake system to
protect against excessive air pressure buildup and to
sound an audible alert. Safety valves are available
in both adjustable (e.g. the Bendix
®
ST-1
™
valve) and
non-adjustable (e.g. ST-3
™
, ST-4
™
valve) styles, in
various pressure settings, and for various port sizes.
Maximum service system air pressure allowed by
government regulation is typically 150 psi. Various
safety valve settings are used at different points in the
charging and treatment system.
Specifi cally designed for use in compressors, ST-4
™
safety valves are installed in an extra compressor head
discharge port, if available, or in the discharge line near
the compressor, to prevent compressor damage in the
event of discharge line blockage.
An Inlet Regulating Valve (or “IRV”) is typically used
on multi-cylinder compressors which receive their input
air supply from the pressurized side of the engine
turbocharger. The IRV, which is generally mounted
to the compressor inlet, is designed to regulate
compressor inlet pressure to 10 PSI or less. The
outlet fl ange of the IRV can be mounted to all Bendix
®
Tu-Flo
®
compressors except the Bendix
®
Tu-Flo
®
300
compressor. The IRV may not be used in conjunction
with single cylinder compressors.
Governors and Components
Governors
D-2A
™
Governor
Inlet Check Valves (or “ICV”) are used on naturally
aspirated compressors to prevent oil mist from entering
the inlet line during the unloaded cycle. The inlet
check valve either mounts to the intake side of the
compressor (and must be used in conjunction with an
inlet valve stop or inlet adapter), or may be mounted
remotely.
Inlet
Check
Valves
Inlet
Regulating
Valve
ST-1
™
, ST- 3
™
and ST-4
™
Safety Valves
D-2
®
/SV-1
™
Governor
Module
D-2
®
Governor
Exhaust Port
Shown with
breather
valve
installed
- Air Brake Handbook 1
- The Air Brake Handbook 3
- Device Index 4
- Handbook Section Index 5
- General Precautions 6
- Section 1: An Overview 7
- Bendix Air Compressors 8
- Compressors 10
- Concerns? 11
- Governors and Components 12
- Reservoirs and Components 13
- Air Dryers 14
- Air Dryers and Filters 15
- Dual Circuit Brake Valves 17
- Actuators 19
- Slack Adjusters 20
- Foundation Brakes 21
- Foundation Brakes, continued 22
- Quick Release, Ratio Valves 23
- Ratio, Proportioning Valves 24
- Relay Valves 25
- Push-Pull Valves 26
- Spring Brake Valves 27
- Lever Operated Control Valves 28
- Additional Control Valves 29
- Park Co ntrol Valves 30
- Emergency Systems 30
- Dash Control Modules 31
- Tractor Pr otection Valves 32
- Trailer Spring Brake Valves 33
- ABS Components 37
- Truck a nd Tractor ABS 38
- Operation 38
- ATC Operation 39
- Advanced ABS 40
- Advanced ABS Features 42
- Trailer ABS Components 43
- Trailer ABS Operation 43
- “Curb-Side” 44
- “Driver-Side” 44
- Controllers with PLC 45
- Troubleshooting ABS 46
- A - Display 48
- B - Receiver 48
- C - Sensor 48
- Bendix M odules 49
- Pre-Trip Safety 49
- Inspections 49
- Fan Clutches 49
- Friction 50
- Braking Force 50
- Leverage 52
- Deceleration 53
- Deceleration (continued) 54
- Properties of Compressed Air 55
- The Fundamentals of 57
- Compressed Air Brakes 57
- S-Cam and Air Disc Brakes 58
- Air Brake System Balance 59
- II. Mechanical Systems 60
- NOTE: The EC-60 62
- Contact Bendix 65
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