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[Page 1] Blue Bird Sigma Y3FE 2015
For GENUINE BLUE BIRD replacements parts, contact your Blue Bird Authorized Dealer 2015 Y3FE DRIVERS HANDBOOK 10035741 COUNT ON BLUE BIRD COUNT ON BLUE BIRD 10035741 2015 DRIVERS HANDBOOK Y3FE BLUE BIRD SIGMA ...
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10035741 Edition A Y3FE BLUE BIRD SIGMA CHASSIS DRIVER HANDBOOK ...
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2 © 2013 Blue Bird Body Co. All rights reserved. All Blue Bird products sold for use in the United States of America and its insular areas comply with all applicable Federal Motor Vehicle Safety Standards (FMVSS) as of the date of manufacture indic...
[Page 5] Blue Bird Sigma Y3FE 2015
3 CONTENTS CONTENTS Regarding Modifications / 6 Before Placing the Bus in Service / 8 Product Identification Information / 9 DRIVER’S AREA Driver’s Compartment / 10 Driver’s Instrument Panel / 11 Left Switch Panel / 16 Right Switch Panel / 18...
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4 DRIVER HANDBOOK Y3FE ...
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5 INTRODUCTION W e at Blue Bird Corporation wish to thank you for your investment of trust in Blue Bird quality, and congratulate you on your oper- ation of one of Blue Bird’s newest models; the Blue Bird Sigma (Y3FE). This manual is to acquaint ...
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6 DRIVER HANDBOOK Y3FE Regarding Modifications Blue Bird Body Co. offers many items as standard and optional equipment to meet regulatory specifications and individual customer requirements. This includes, but is not necessarily limited to, st...
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7 INTRODUCTION For the terms of the Limited Warranty of this Blue Bird product, refer to the Warranty certificate provided in the owner’s documents that came with the vehicle. In addition to the safety issues involved in the modification of the...
[Page 10] Blue Bird Sigma Y3FE 2015
8 DRIVER HANDBOOK Y3FE Before Placing the Bus in Service It is the responsibility of the bus Owner/Operator to ensure compliance with all ap- plicable regulations for bus operation and equipment. As part of a daily pre-trip in- spection, the Driver...
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9 ORIENTATION T his section is to familiarize the Driver with the locations of chassis- related controls and features with which he or she will interact daily. Product Identification Information Your bus may be labeled with some or all of the depict...
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10 DRIVER HANDBOOK Y3FE Driver’s Compartment 1. See Driver’s Instrument Panel. 2. See steering column with horn and controls. 3. Automatic transmission shift control range selector or electronic push but- ton pad location. 4. See Le...
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11 ORIENTATION Driver’s Instrument Panel 1. Speedometer. Indicates vehicle speed in miles/hour or kilometers/hour. 2. Tachometer. Indicates engine speed in revolutions per minute times 1000. 3. Message Display Center. Displays additional i...
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12 DRIVER HANDBOOK Y3FE QUAD 1 QUAD 1 QUAD 3QUAD 3 QUAD 2AQUAD 2A QUAD 2BQUAD 2B QUAD 2CQUAD 2C QUAD 4QUAD 4 No Engine Communication No Transmission Communication No ABS Communication Data Link Warning Vehicle Speed Error Engine Door Open Brake In...
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13 ORIENTATION Left Turn. Flashes with left turn signal. ABS. Indicates fault in the anti-lock brakes system. Brake Pressure. Indicates hydraulic brake failure. Stop vehicle and call for assistance. Brake Alarm. Indicates a problem with the s...
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14 DRIVER HANDBOOK Y3FE Set the Clock To set the clock, be sure the park brake is set then press and hold the bottom button onthefaceoftheinstrumentclusterforapproximately5seconds.Thiswilldisplay the Se...
[Page 17] Blue Bird Sigma Y3FE 2015
15 ORIENTATION Contrast Adjustment Set the park brake then press and hold the bottom button on the face of the instru- mentclusterforapproximately5seconds.ThiswilldisplaytheSettingsandDiag- nostics screen. Pre...
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16 DRIVER HANDBOOK Y3FE Left Switch Panel The left switch panel located under the driver’s side window and shown here consist of the exterior reaview mirror controls and switches for standard and optional equip- ment. The left switch panel will ...
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17 ORIENTATION HI OFF LO VENT HI OFF LO VENT PANEL B R I G H T D I M DEST SIGN BRK OVRD VGT BRK HIGH IDLE TIRE CHAINS FAN HI OFF LO FAN HI OFF LO FAN HI OFF LO FUEL DOOR LIFT DOOR EMER EXIT NOISE SUPP REARRHLH LIFT LEFT LAND REAR LAND RIGHT LAND Rea...
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18 DRIVER HANDBOOK Y3FE Right Switch Panel The right switch panel as shown here consists of switches and controls for optional equipment installed on the bus. There are three banks of switches. The first bank of switches are for optional equipme...
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19 ORIENTATION HI OFF LO DRV HTR HI OFF LO RR HTR HI OFF LO RR HTR PEDAL ADJ HI OFF LO FRT HTR HI OFF LO FRT HTR HTR PUMP SERVICE DOOR W/L START W/L MASTER S/C ARM CANCEL OPEN CLOSE KNEEL LUG DOOR W/L W/L Air or electric entrance door switch with bl...
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20 DRIVER HANDBOOK Y3FE Heat and Air Control Panels The heat and air control panels are defined below. For further explanation of heaters and heater controls, see Heaters, under Routine Operation found in ths manual. For additional information o...
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21 ORIENTATION Comfort Aire Manual Controls Temperature Controls (Upper Knobs) Fan Controls (Lower Knobs) O, Low, Medium and High Comfort Aire Electronic Controls Front Fan Control O, Low, Medium and High Rear Fan Control O, Low, Medium and...
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22 DRIVER HANDBOOK Y3FE Left Switch Stalk Turn Signals High / Low Beam Wipe / Wash Intermittent Windshield Wipe / Wash Turn for Wipe. Press for wash Hazard Flasher Control Tilt / Telescopic Release Steering Column Positioning Steering Column The st...
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23 ORIENTATION ...
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24 DRIVER HANDBOOK Y3FE Seat Back Tilt Adjustment (A) (B) Standard Driver’s Seat To adjust seat position forward or backward, hold lever (A) to the left. Shift the seat forward or rearward to the desired posi- tion and release the lever. A hand...
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25 ORIENTATION Mechanical Latch (Four (4) Inside Hood Opening) Engine Access To open the engine hood lid, disengage the latch mechanisms located in two places on the engine cover. Lift the access cover and allow it to rest fully open on the forwa...
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26 DRIVER HANDBOOK Y3FE ...
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27 ENROUTE EMERGENCIES P assenger safety is the bus driver’s first priority. In the event of enroute emergency or roadside hazard, the driver must be confidently famil- iar with the location and use of safety devices, emergency equipment and ro...
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28 DRIVER HANDBOOK Y3FE TIRE / WHEEL EMERGENCIES Damaged Tires [WARNING] An inflated tire and rim can be very dangerous when misused or worn out. Many accidents, some fatal, have resulted from improper handling and operation of bus rims and whee...
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29 ENROUTE EMERGENCIES [WARNING] Improper handling of wheels and rims has caused many injuries and deaths. Failure to follow directions is the leading cause of such accidents. Obtain procedures from wheel and rim manufacturer before working with a...
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30 DRIVER HANDBOOK Y3FE Jacking Instructions [WARNING] Proper jacking procedures and basic safety measures must be observed to ensure safety of personnel while working under the bus. Always check the serviceability of any lifting equipment prior...
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31 ENROUTE EMERGENCIES Changing a Flat Tire Thelugnutsaretightenedtoatorquevalueof450-500Ftlb(610–678Nm).With- out the proper power tools, it is very difficult to remove the lug nuts. The lu...
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32 DRIVER HANDBOOK Y3FE Towing Or Pushing If the bus is towed with the rear wheels on the road, the driveshaft must be removed in order to prevent the automatic transmission input shaft from turning which could damage the transmission. This is ac...
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33 ENROUTE EMERGENCIES Releasing Spring Brake Manually When air pressure fails in the rear service brake chamber, the power spring applies the rear service brakes. Unless pressure can be re-established, the park brakes must be released, as follows...
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34 DRIVER HANDBOOK Y3FE ...
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35 ROUTINE OPERATION It is very important, from a safety standpoint, to become familiar with bus operation through experience before attempting pas- senger transit. [WARNING] Do not attempt to operate the bus without: (1) thorough knowledge of all i...
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36 DRIVER HANDBOOK Y3FE Any malfunction or defect discovered should be corrected before the next trip. Re- port needed services to responsible maintenance personnel. Engine/Transmission: • Checkfuellevel. • Drainairtan...
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37 ROUTINE OPERATION Starting the engine: • Besureparkingbrakesareon. • PutthetransmissioninNeutral. • Withthekeyinthe“ON”position,checkthefuelgauge.Checkt...
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38 DRIVER HANDBOOK Y3FE Engine Exhaust Caution (Carbon Monoxide) [WARNING] Never idle the engine in a confined area. Never sit in a parked or stopped vehicle with the engine running. Exhaust gases, particularly carbon monoxide, can build up. The...
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39 ROUTINE OPERATION Diesel Engine Starting Procedure See the engine manufacturer’s operating manual for proper starting procedures. 1. Apply the parking brake. 2. Place the transmission shift lever in the neutral position. 3. Insert the...
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40 DRIVER HANDBOOK Y3FE Battery Disconnect Switch The bus is equipped with a Battery Disconnect Switch which is intended for use by service technicians. Do not use the Battery Disconnect Switch as a routine power shut-off. Doing so may cause err...
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41 ROUTINE OPERATION ...
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42 DRIVER HANDBOOK Y3FE Exhaust SCR System Selective Catalytic Reduction (SCR) is a Nitrous Oxide control technique for diesel engine exhaust. The SCR system uses Diesel Exhaust Fluid (DEF) a nitrogenous com- pound which readily decomposes into am...
[Page 45] Blue Bird Sigma Y3FE 2015
43 ROUTINE OPERATION [CAUTION] DO NOT overfill the DEF reservoir. DEF freezes and expands at temperatures below 12° F (-11°C). If the reservoir is overfilled and freezes, the expansion of the frozen DEF will cause catastrophic damage to reserv...
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44 DRIVER HANDBOOK Y3FE DEF Level 4.WhentheDEFlevelreaches0%inthetank,aDEF TANK EMPTY warning will appear in Quad 1 of the Message Display, this DEF TANK EMPTY warning dis- play will flash from positive to negativ...
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45 ROUTINE OPERATION DEF Type Level 1. When incorrect fluid or mixture is introduced into the tank, a DEF FLUID TYPE warning will appear in Quad 1 of the Message Display, this DEF FLUID TYPE warning display will flash from positive to negative. ...
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46 DRIVER HANDBOOK Y3FE SCR Fault Level 1. When an SCR System Fault is detected, an SCR SYSTEM FAULT SEE ENGINE DIAGNOSTIC warning will appear in Quad 1 of the Message Display, this SCR SYSTEM FAULT SEE ENGINE DIAGNOSTIC will flash from positive...
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47 ROUTINE OPERATION Allison Automatic Transmission Information and instructions in the Allison Transmission Operator’s Manual supplied with the bus takes precedence over the general information in this publication. Allison Model 3000 Series Tran...
[Page 50] Blue Bird Sigma Y3FE 2015
48 DRIVER HANDBOOK Y3FE Allison Model 3000 Series Transmission Gear Selection [WARNING]Whenleavingthevehiclewhiletheengineisrunning,theopera- tor must ensure the transmission is in “Neutral”, the parking brake i...
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49 ROUTINE OPERATION Range Inhibited Light Under certain operating conditions, the Transmission Control Module (TCM) may de- termine that it is necessary to restrict gear selection to protect the transmission from damage and provide safer operating...
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50 DRIVER HANDBOOK Y3FE Allison Automatic Transmission Driving Tips Accelerator Control The driver’s pressure on the accelerator pedal influences the automatic shifting. An electronic signal tells the ECU how far the driver has depressed the pe...
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51 ROUTINE OPERATION [WARNING] To maintain control, combine downshifting, braking, and other retarding devices. Downshifting to a lower transmission range increases engine braking and helps maintain control. The transmission has a feature to prev...
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52 DRIVER HANDBOOK Y3FE Transmission Service Prognostics Service prognostics is standard equipment on all Allison Gen 4 transmissions and requirestheuseofAllisonapprovedTES295orTES389uidsandControlMain�...
[Page 55] Blue Bird Sigma Y3FE 2015
53 ROUTINE OPERATION Antilock Braking System (ABS) In a vehicle equipped with an antilock braking system (ABS), motion sensors detect the speeds at which the wheels move. These sensors transmit this information to an Electronic Control Unit (ECU)....
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54 DRIVER HANDBOOK Y3FE Air Brakes All Americans equipped with air brakes employ separate systems for the front and rear service brakes. A separate reservoir and air gauge is provided for each of these systems. A dual treadle valve is provided fo...
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55 ROUTINE OPERATION Control Panel Outlet Locations The heater control panel is located on the dash to the right of the instruments. The indicated switches and levers control the motors and air outlets as shown. The heater is located in the right ...
[Page 58] Blue Bird Sigma Y3FE 2015
56 DRIVER HANDBOOK Y3FE Defrosting Windshield fogging and frosting is caused by warm, humid air coming into contact with a colder windshield, which causes the moisture in the air to condense and freeze if the windshield is cold enough. The warmer...
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57 CARE & MAINTENANCE A lthough in most transportation operations, maintenance tasks will be performed by service technicians, familiarity with the basic tech- nical data in this section will enhance the Driver’s overall understanding of the ...
[Page 60] Blue Bird Sigma Y3FE 2015
58 DRIVER HANDBOOK Y3FE Air Intake System Inspection Intake air must be filtered to prevent dirt and debris from entering the engine and causing premature wear. Air intake piping should be checked daily, as should charge-air piping and engine ai...
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59 CARE & MAINTENANCE Engine Cooling System In today’s modern engine designs, accurate maintenance of the cooling system is critically important to engine life. Simply maintaining coolant level and performing occasional coolant changes does ...
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60 DRIVER HANDBOOK Y3FE [CAUTION]Whenreplenishingorreplacingcoolant,onlyusecoolantofthe same type already installed. Never mix coolants of different color, type, or brand. Plain water is corrosive at engine operat...
[Page 63] Blue Bird Sigma Y3FE 2015
61 CARE & MAINTENANCE A regularly-scheduled bus inspection and maintenance program should be fol- lowed to prevent coolant losses due to damaged or worn hoses, loose clamps, etc. If coolant is lost while the bus is in use, and roadside emergency...
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62 DRIVER HANDBOOK Y3FE Transmission Transmission Breather The transmission has a self-contained breather at the top left rear of the transmis- sion main housing. The breather provides a passage for normal expansion and con- traction of air and fl...
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63 CARE & MAINTENANCE MAINTENANCE SCHEDULE Maintenance Task Schedule Ensure that the Safety Information, warnings and instructions are read and under- stood before operation or maintenance procedures are performed. Use whichever interval listed...
[Page 66] Blue Bird Sigma Y3FE 2015
64 DRIVER HANDBOOK Y3FE First 1000 Miles Then Every 12 Months or 12,000 Miles Axle & Suspension, Front Inspect & Torque AirTek Suspension Suspension Fastners Tighten to 285 to 305 ft. lbs. Inspect & Torque SofTek Spring Suspension U-B...
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65 CARE & MAINTENANCE Every Day Brakes Inspect Air Brakes Air Lines & Fittings Inspect for leaks or physical damage. Drain Air Brakes Air Tanks Drain daily in cold weather; weekly in warm weather. Inspect Air Brakes Brake Chambers See Air...
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66 DRIVER HANDBOOK Y3FE Every Week Brakes Inspect Hydraulic Brakes Pads Replace if worn to within 1/8" lining remaining. Every Month Fuel System Clean DEF Tank Fill Cap Reference SU1219 for cleaning instructions. Every Month or 3000 Mil...
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67 CARE & MAINTENANCE ...
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68 DRIVER HANDBOOK Y3FE Every 3 Months or 5000 Miles Brakes Lubricate Air Brakes S-Cam See Meritor Cam Brakes Appendix in Air Brakes Chapter of Service Manual for guidelines. Lubricate Hydraulic Brakes Calipers Lube per Meritor specs. Cooling S...
[Page 71] Blue Bird Sigma Y3FE 2015
69 CARE & MAINTENANCE Steering Lubricate Axle Steering Linkage Drag Link NLGI #2 EP multipurpose grease rated GC-LB or equivalent. Lubricate Axle Steering Linkage King Pins NLGI #2 EP multipurpose grease rated GC-LB or equivalent. Lubricate Ax...
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70 DRIVER HANDBOOK Y3FE Every 6 Months or 6000 Miles Axle & Suspension, Front Inspect AirTek Suspension Whole Assembly Visually inspect for damage. Lubricate SofTek Spring Suspension Steering Grease Fittings NLGI #2 Grease. Inspect SofTek S...
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71 CARE & MAINTENANCE Every 6 Months or 10,000 Miles Axle & Suspension, Rear Inspect & Tighten Comfort Air Suspension Components See diagram and appendices in Suspension Chapter of your service manual. Every 6 Months or 12,000 Mi...
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72 DRIVER HANDBOOK Y3FE Every 12 Months or 12,000 Miles Axle & Suspension, Front Inspect & Adjust AirTek Suspension Ride Height Shock Length, eye-to-eye: 17.25" +/- 0.25" Inspect & Torque SofTek Spring Suspension Components...
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73 CARE & MAINTENANCE Every 12 Months or 90,000 Miles Fuel System Inspect DEF Tank Check for dents, or external impact damage. Inspect DEF Tank Lines Check for hose integrity. Every 12 Months or 100,000 Miles Axle & Suspension, Rear Re...
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74 DRIVER HANDBOOK Y3FE As required at overhaul Transmission Replace Transmission Internal Filter As Specified by Engine Manufacturer Cooling System Replace Coolant See your Engine Operator's Manual. Use only premixed coolant(s) approved...
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75 CARE & MAINTENANCE 1. Intake Air Restriction Indicator 2. Rear Axle Lubricant 3. Axle Vent 4. King Pin 5. TieRod 6. Drag Rod 7. Steering Gear Maintenance Locations 8. Not Applicable 9. Brake Camshaft 10. Br...
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DRIVER HANDBOOK Y3FE Notes 76 ...
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Notes 77 ...
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DRIVER HANDBOOK Y3FE Notes 78 ...
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