BC Transit â Air Brake Course

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Braking Distance This distance is dependent on many factors. The condition of the brake components, brake adjustment, road, operator, speed and load of the vehicle will all determine how much asphalt disappears under your bumper before coming to a stop.The professional driver realizes the limitations of his/her vehicle’s brakes and adjusts their driving accordingly. 16
Stopping Distance…(total stopping time) •is the total distance travelled before your vehicle stops after factoring in perception time, reaction time, brake lag time and braking distance. • Other factors such as poor road condition due to inclement weather, driver fatigue and vehicle condition will add length to overall stopping distance. •As a professional driver, it is incumbent upon you to prepare yourself for any eventuality and govern your driving habits accordingly. •Techniques such as brake coverage, eye lead time, effective scanning and comprehensive vehicle pre-trip inspections can do a lot to even the odds. • Your passengers, other road users and your own safety depend on your attitude. Think professional, act professional and professional you will be! b 17
Page 1 and 2: BC Transit - Air Brake Course Prese
Page 3 and 4: BC Transit - Air Brake Course 1. Ai
Page 5 and 6: BC Transit - Air Brake Course 1. Ai
Page 7 and 8: BC Transit - Air Brake Course 2. De
Page 9 and 10: The final factor that will determin
Page 11 and 12: Weight - Speed - Distance When weig
Page 13 and 14: Perception Time (See-Think) Percept
Page 15: 4/10 sec. Brake Lag (mechanical lag
Page 21 and 22: Apply the principal from the previo
Page 23 and 24: Using Compressed Air to Our Advanta
Page 27 and 28: Combining mechanical advantage to a
Page 29 and 30: As the driver applies the brake ped
Page 31 and 32: Review Questions: Section 1 1) What
Page 33 and 34: BC Transit - Air Brake Course 3. Fi
Page 35 and 36: The Governor The governor may be co
Page 37 and 38: One-way Check Valve The one-way che
Page 39 and 40: Air Lines • Air lines link compre
Page 41 and 42: Safety Valve The Reservoirs One-way
Page 43 and 44: Air Gauges 60 50 40 70 80 85 90 100
Page 47 and 48: The Foot Valve The foot valve contr
Page 49 and 50: The Foundation Brakes: Brake Chambe
Page 51 and 52: Automatic Slack Adjusters Pre-Trip
Page 53 and 54: Brake Chambers and Slack Adjusters
Page 57 and 58: Review Questions: Section Three 1)
Page 59 and 60: BC Transit - Air Brake Course 4. Ba
Page 61 and 62: No. 2 GOVERNOR: tells compressor wh
Page 63 and 64: No. 4 AIR LINES: link air from one
Page 65 and 66: No. 11 BRAKE SHOES AND LININGS: sho
Page 67 and 68:
No. 13 SLACK ADJUSTER: provides a m
Page 69 and 70:
No. 15 BRAKE CHAMBER: part of force
Page 71 and 72:
Quick Release Valve and Stop Light
Page 73 and 74:
The Relay Valve The relay valve pro
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In this diagram, the dark green lin
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• Because the relay valve accesse
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BC Transit - Air Brake Course 4. Ba
Page 81 and 82:
A spring type park brake serves thr
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However, some valves may be designe
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Park Brake and Service Brake Releas
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Park Brake Applied - Service Brake
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Mechanical Release of the Park Brak
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“Maxi-Brake” type Park Brake Th
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“Maxi-Brake” Operation (single
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Park brake systems with double cont
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Park Brake Emergency Functions... 1
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BC Transit - Air Brake Course 4. Ba
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No. 6 LOW AIR WARNING DEVICE: activ
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No. 8 RELAY VALVE: provides quicker
Page 105 and 106:
Review of Section Four 6) Why is it
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BC Transit - Air Brake Course 5. Ot
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Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
ATC (Automatic Traction Control)
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Long Stroke Push Rods Many new air
Page 119 and 120:
Disc Brakes Callipers Rotor …oper
Page 121 and 122:
Wedge Brakes This type of brake use
Page 123 and 124:
Section Six Single Circuit Tractor
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Parts of the Trailer (van style) 1)
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The “Fifth Wheel” The fifth whe
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Hooking Up (Step 2) A visual inspec
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Charging the Trailer Brake Reservoi
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The Semi-Trailer Ready for its Pre-
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Tractor-Trailer Trailer Air Brake S
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Introduction to Valves and Componen
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The Hand Valve The Hand Valve is mo
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The Tractor Protection Valve The Tr
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Accidental Hand Valve Application (
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The Trailer Supply /Delivery Line T
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The Emergency Relay Valve The Emerg
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Foot Valve Application (trailer con
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Emergency Functions The following s
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Supply Line Rupture (trailer intact
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Supply Line Rupture (handling the s
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Service Line Rupture (continued) 1)
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Loss of Main Reservoir Air In this
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Supply & Service Lines Crossed (air
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Three Tests to Confirm Emergency Re
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Three Tests to Confirm Emergency Re
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Review Questions Section Six (Tract
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BC Transit - Air Brake Course 7. Du
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The Purpose of Dual Air Systems Dua
Page 173 and 174:
Identifying Primary and Secondary C
Page 175 and 176:
Primary and Secondary Systems (cont
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The Simple Dual Circuit System One-
Page 179 and 180:
Secondary Air Loss (Foot Valve Appl
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Adding the Park Brake (spring brake
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Primary Air Loss and Park Brake Fun
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Enter the Modulator Valve The modul
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The Modulator Valve (secondary air
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The Modulator Valve (primary air lo
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The Modulator Valve (primary air lo
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Dual Air System Summary 1) The purp
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BC Transit - Air Brake Course 8. Du
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Combination Truck and Trailer with
Page 199 and 200:
SYSTEM PARK TRAILER SUPPLY TRACTOR
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Combination Truck and Trailer (Supp
Page 203 and 204:
Combination Truck and Trailer (mixe
Page 205 and 206:
Combination Truck and Trailer (Prim
Page 207 and 208:
Section Review - Dual Air - Tractor
Page 209 and 210:
T-75 Off Highway System - Single Un
Page 211 and 212:
L-75 Off Highway Combination with S
Page 213 and 214:
Schedule SX Trailer (spring equippe
Page 215:
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BC Transit â Air Brake Course