BC Transit â Air Brake Course

More documents

Recommendations

Info

Automatic Slack Adjusters Automatic Slack Adjusters With Hexagonal Adjusting Bolts: •If the slack adjuster has a hexagonal adjusting bolt, the brakes are adjusted by turning the adjusting bolt in a clockwise direction until the lining contacts the drum. •Baking off the adjusting bolt by 1/2 turn should restore running clearance (backing off may take considerable force and a ratcheting sound and feel will occur – this is normal). Automatic Slack Adjusters With Square Adjusting Bolts: •If the slack adjuster has a square adjusting bolt located at the bottom end of the body, do not attempt adjusting until a spring-loaded pawl that meshes with internal teeth is disengaged. •If the slack adjuster has a square adjusting bolt, the brakes are adjusted by turning the adjusting bolt in a counter-clockwise direction until the lining contacts the drum. •Baking off the adjusting bolt by 1/2 turn should restore running clearance. •Release the button or re-install the spring and pawl if they were removed. 52
<strong>Brake</strong> Chambers and Slack Adjusters As the linings wear, the distance between the linings and the drums begins to enlarge. If this condition were to deteriorate, braking could be lost completely! Loss of brake adjustment is the leading cause of brake failure in the transportation industry! 53
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 and 16: 4/10 sec. Brake Lag (mechanical lag
Page 17 and 18: Stopping Distance…(total stopping
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: Automatic Slack Adjusters Pre-Trip
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
Page 75 and 76: In this diagram, the dark green lin
Page 77 and 78: • Because the relay valve accesse
Page 81 and 82: A spring type park brake serves thr
Page 83 and 84: However, some valves may be designe
Page 85 and 86: Park Brake and Service Brake Releas
Page 87 and 88: Park Brake Applied - Service Brake
Page 89 and 90: Mechanical Release of the Park Brak
Page 91 and 92: “Maxi-Brake” type Park Brake Th
Page 93 and 94: “Maxi-Brake” Operation (single
Page 95 and 96: Park brake systems with double cont
Page 97 and 98: Park Brake Emergency Functions... 1
Page 101 and 102: No. 6 LOW AIR WARNING DEVICE: activ
Page 103 and 104:
No. 8 RELAY VALVE: provides quicker
Page 105 and 106:
Review of Section Four 6) Why is it
Page 107 and 108:
BC Transit - Air Brake Course 5. Ot
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
ATC (Automatic Traction Control)
Page 117 and 118:
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
Page 125 and 126:
Parts of the Trailer (van style) 1)
Page 127 and 128:
The “Fifth Wheel” The fifth whe
Page 129 and 130:
Hooking Up (Step 2) A visual inspec
Page 131 and 132:
Charging the Trailer Brake Reservoi
Page 133 and 134:
The Semi-Trailer Ready for its Pre-
Page 135 and 136:
Tractor-Trailer Trailer Air Brake S
Page 137 and 138:
Introduction to Valves and Componen
Page 139 and 140:
The Hand Valve The Hand Valve is mo
Page 141 and 142:
The Tractor Protection Valve The Tr
Page 143 and 144:
Accidental Hand Valve Application (
Page 145 and 146:
The Trailer Supply /Delivery Line T
Page 147 and 148:
The Emergency Relay Valve The Emerg
Page 149 and 150:
Foot Valve Application (trailer con
Page 151 and 152:
Emergency Functions The following s
Page 153 and 154:
Supply Line Rupture (trailer intact
Page 155 and 156:
Supply Line Rupture (handling the s
Page 157 and 158:
Service Line Rupture (continued) 1)
Page 159 and 160:
Loss of Main Reservoir Air In this
Page 161 and 162:
Supply & Service Lines Crossed (air
Page 163 and 164:
Three Tests to Confirm Emergency Re
Page 165 and 166:
Three Tests to Confirm Emergency Re
Page 167 and 168:
Review Questions Section Six (Tract
Page 169 and 170:
BC Transit - Air Brake Course 7. Du
Page 171 and 172:
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
Page 177 and 178:
The Simple Dual Circuit System One-
Page 179 and 180:
Secondary Air Loss (Foot Valve Appl
Page 181 and 182:
Adding the Park Brake (spring brake
Page 183 and 184:
Primary Air Loss and Park Brake Fun
Page 185 and 186:
Enter the Modulator Valve The modul
Page 187 and 188:
The Modulator Valve (secondary air
Page 189 and 190:
The Modulator Valve (primary air lo
Page 191 and 192:
The Modulator Valve (primary air lo
Page 193 and 194:
Dual Air System Summary 1) The purp
Page 195 and 196:
BC Transit - Air Brake Course 8. Du
Page 197 and 198:
Combination Truck and Trailer with
Page 199 and 200:
SYSTEM PARK TRAILER SUPPLY TRACTOR
Page 201 and 202:
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:
Thank you for viewing this Air Brak
show all

BC Transit â Air Brake Course

Create successful ePaper yourself

Delete template?

Save as template?

BC Transit â Air Brake Course