In order to serve our customers better, we have created an email address that goes directly to our Technical Support Engineer. He / She is available to assist with end user concerns regarding the fit, form, or function of SMI products.

Someone will respond to your email as quickly as possible. In order to serve you better, tell us about your product:

  • Model of Vehicle.
  • Year of Vehicle.
  • Area of concern on the vehicle (i.e. crossing arm, stop arm, door mechanism, etc..)
  • SMI Product Part Number.
  • Is the problem Electrical or Mechanical?
  • A description of your problem.

The more information we have, the more quickly we can get you an answer. While you are waiting, please browse our self-help technical bulletins.

For Technical Support, Email: tech.support@smiglobal.net.


#3905 Navistar #3000 Splash ShieldModified Date: January 29, 2016Filesize: 75kB
#A001B Thomas Saf-T Liner Crossing Arm AdjustmentModified Date: January 29, 2016Filesize: 25kB
#A050506 Sentinel Crossing Arm Installation InstructionsModified Date: January 29, 2016Filesize: 269kB
#A411 Troubleshooting Integrated Air Crossing Arm UnitsModified Date: January 29, 2016Filesize: 58kB
#A609 Integrated Crossing Arms that Continue to Run Open or ClosedModified Date: January 29, 2016Filesize: 147kB
#A610 Vertical Alignment of Integrated Crossing ArmModified Date: January 29, 2016Filesize: 149kB
#A611 Polycarbonate Crossing Arm Approved CleanersModified Date: January 29, 2016Filesize: 21kB
#A612 Integrated Cover Seal & Yoke IdentificationModified Date: January 29, 2016Filesize: 126kB
Crossing Arm Base Reference SheetModified Date: August 21, 2017Filesize: 13kB
Wiring Diagram 1-2-5-6Modified Date: January 29, 2016Filesize: 126kB
XAH-0001-00 HDX EFX Hinge Arm ReplacementModified Date: January 29, 2016Filesize: 998kB
#A-904 ProLo Hatch Lid DepressionModified Date: January 29, 2016Filesize: 37kB
#A201 ProLo 92xx Series Hatch Installation InstructionsModified Date: January 29, 2016Filesize: 36kB
#A302 ProLo Hatch Adhesive Gasket Installation InstructionsModified Date: January 29, 2016Filesize: 32kB
7 Series Part NumbersModified Date: January 29, 2016Filesize: 59kB
#A503 – B Troubleshooting Electric Door Control MechanismModified Date: January 29, 2016Filesize: 108kB
#A903 Door MechanismModified Date: January 29, 2016Filesize: 96kB
Merge Alert InstallationModified Date: January 29, 2016Filesize: 375kB
#9708 #1015 Strobe Retrofit KitModified Date: February 01, 2016Filesize: 82kB
#9903-A Strboe Light Kit #80-013 Installation InstructionsModified Date: February 01, 2016Filesize: 86kB
9904-A Strobe Light Kit #80-014 Installation InstructionsModified Date: February 01, 2016Filesize: 122kB
#A409 Strobe Light Installation InstructionsModified Date: February 01, 2016Filesize: 26kB
#A412 Troubleshooting Strobe Light UnitsModified Date: February 01, 2016Filesize: 36kB
Replacement Procedure – 515 StrobesModified Date: February 01, 2016Filesize: 599kB
TECH-A1144 848 Strobe Instruction SheetModified Date: October 19, 2017Filesize: 397kB
Air CradlesModified Date: February 01, 2016Filesize: 40kB
Cross Arm SaggingModified Date: February 01, 2016Filesize: 18kB
Solid StateModified Date: February 01, 2016Filesize: 47kB
Stop Arm LightsModified Date: February 01, 2016Filesize: 513kB
SMI Warranty PolicyModified Date: February 01, 2016Filesize: 204kB
#A511 Troubleshooting Sentinel ModulesModified Date: February 01, 2016Filesize: 68kB
#A606 Hinge Pin #5057 UpdateModified Date: February 01, 2016Filesize: 29kB
#A607 #5150-L Module with Flying LeadsModified Date: February 01, 2016Filesize: 43kB
#2910 Roof Hatch Operating InstructionsModified Date: February 01, 2016Filesize: 22kB
#9901 Hatch Plunger Lock Installation InstructionsModified Date: February 01, 2016Filesize: 28kB
#9905 Opening & Closing Procedures for 89xx SeriesModified Date: February 01, 2016Filesize: 65kB
#A1004 Transpec Multi-color LidModified Date: February 01, 2016Filesize: 231kB
#A101 Hatch Installation InstructionsModified Date: February 01, 2016Filesize: 32kB
#A103 One Way Handle ConversionModified Date: February 01, 2016Filesize: 440kB
#A202 Once Way Handle Conversion 86xx SeriesModified Date: February 01, 2016Filesize: 232kB
#A301 Fan Hatch Handle Conversion for 8910AModified Date: February 01, 2016Filesize: 22kB
#A901 Plastic Rivet Material & Color Change on Transpec HatchModified Date: February 01, 2016Filesize: 52kB
#A902 Technical Bulletin on Transpec HatchesModified Date: February 01, 2016Filesize: 496kB
Hatch Alarm Switch Removal/ReplacementModified Date: February 01, 2016Filesize: 661kB
THA-0001-00 Power Vent Hatch T2965 Well Nut ReplacmentModified Date: February 01, 2016Filesize: 340kB
Transpec Handle RevisionModified Date: February 01, 2016Filesize: 204kB
Transpec Roof Hatch Installation InstructionsModified Date: February 01, 2016Filesize: 18kB
Transpec Roof Hatch Open and Close InstructionsModified Date: February 01, 2016Filesize: 2,105kB
AC Ducting FlyerModified Date: February 01, 2016Filesize: 11,172kB
BAL-025 Specifications Low FloorModified Date: February 01, 2016Filesize: 63kB
BAL-026 Specifications Low FloorModified Date: February 01, 2016Filesize: 81kB
BAL-028 Specifications Low FloorModified Date: February 01, 2016Filesize: 79kB
Blue Lens Sales BulletinModified Date: February 01, 2016Filesize: 276kB
Deluxe OPR FlyerModified Date: February 01, 2016Filesize: 10,804kB
Open Frame OPR FlyerModified Date: February 01, 2016Filesize: 13,832kB
OPR System FlyerModified Date: February 01, 2016Filesize: 12,426kB
Other Products BrochureModified Date: February 01, 2016Filesize: 358kB
Pretoria Interior Lighting SpecsModified Date: February 01, 2016Filesize: 525kB
Pretoria Standard OPR SpecsModified Date: February 01, 2016Filesize: 605kB
Strip Light SpecificationsModified Date: February 01, 2016Filesize: 180kB
Suburban OPR BrochureModified Date: February 01, 2016Filesize: 575kB
Tech Talk 2Modified Date: February 01, 2016Filesize: 707kB
#2908 Camshaft #5031 Replacement InstructionsModified Date: February 01, 2016Filesize: 21kB
#2909E Troubleshooting 5-Series UnitsModified Date: February 01, 2016Filesize: 44kB
#5901A 5-Series Heater Installation InstructionsModified Date: February 01, 2016Filesize: 44kB
#5904 Bushing #5166 Installation InstructionsModified Date: February 01, 2016Filesize: 23kB
#7904 Clutch Driver #5056 Replacement InstructionsModified Date: February 01, 2016Filesize: 53kB
#A104 Stop Arm & Crossing Arm Installation InstructionsModified Date: February 01, 2016Filesize: 272kB
#A402A Clutch #5003 Replacement InstructionsModified Date: February 01, 2016Filesize: 22kB
#A605 Zinc Casing Motor #5014 Installation InstructionsModified Date: February 01, 2016Filesize: 107kB
Wiring Diagram 1-2-5-6Modified Date: February 01, 2016Filesize: 126kB
#2901 Stop Arm Wiring ConfigurationModified Date: February 01, 2016Filesize: 32kB
7 Series Installation InstructionsModified Date: February 01, 2016Filesize: 110kB
#8901A LED Blade #200 Installation InstructionsModified Date: February 01, 2016Filesize: 23kB
#A1010 Stop Arm Mounting AdapterModified Date: February 01, 2016Filesize: 346kB
#A505A Sentinel Stop Arm Module Installation InstructionsModified Date: February 01, 2016Filesize: 413kB
#A806 Tech Bulletin Transpec Air to Specialty ConversionModified Date: February 01, 2016Filesize: 76kB
S67-0001-00 6-Series and 7-Series Stop Arm Wiring InformationModified Date: February 01, 2016Filesize: 500kB
SX7-0001-00 6&7 Series Vane ReplacementModified Date: February 01, 2016Filesize: 1,035kB
TECH-A601 LED 290 Stop Arm Updgrade KitModified Date: February 01, 2016Filesize: 376kB
Warranty Bulletin 290 Light Kit 5.1.09Modified Date: February 01, 2016Filesize: 526kB
Wiring Diagram 1-2-5-6Modified Date: February 01, 2016Filesize: 126kB
#3902A Air or Vacuum Pump #1693 Replacement InstructionsModified Date: February 01, 2016Filesize: 253kB
#9503 Air Pressure Regulator #1690-1 Installation InstructionsModified Date: February 01, 2016Filesize: 22kB
#9901B Air Assembly Return Cable #2196 Replacement InstructionsModified Date: February 01, 2016Filesize: 23kB
#A402 Troubleshooting Air or Vacuum UnitsModified Date: February 01, 2016Filesize: 28kB
AXA-0001-00 Double Gasket Replacement Procedure Air Cross ArmModified Date: February 01, 2016Filesize: 371kB
6-Series Module ReplacementModified Date: February 01, 2016Filesize: 348kB
#A002 Troubleshooting 6-Series UnitsModified Date: February 01, 2016Filesize: 79kB
#A102 #6120 w/Module Closing Time DelayModified Date: February 01, 2016Filesize: 44kB
#A602A 5-Series & 6-Series Motor IdentificationModified Date: February 01, 2016Filesize: 83kB
#A906 Re-Installation Instructions for 006120Modified Date: February 01, 2016Filesize: 53kB
Tech Talk #12 Tinted Fluorescent Lamp SleevesModified Date: January 13, 2016Filesize: 613kB
Tech Talk #11 LED Array Color BinningModified Date: January 13, 2016Filesize: 383kB
Tech Talk #10 BAL-007 for Fluorescent SystemsModified Date: January 13, 2016Filesize: 381kB
Tech Talk #09 High Output Fluorescent LampsModified Date: January 13, 2016Filesize: 448kB
Tech Talk #08 Adustable Fixed Dimming LED DriverModified Date: January 13, 2016Filesize: 1,487kB
Tech Talk #07 Arc Sensitive BallastModified Date: January 13, 2016Filesize: 368kB
Tech Talk #06 Reading Light Replacement BulbsModified Date: January 13, 2016Filesize: 872kB
Tech Talk #05 Programmable DimmingModified Date: January 13, 2016Filesize: 709kB
Tech Talk #04 Servicing LED SystemsModified Date: January 13, 2016Filesize: 978kB
Tech Talk #03 Tinted Fluorescent Lamp SleevesModified Date: January 13, 2016Filesize: 272kB
Tech Talk #02 Extinguishable and Dimmable BallastModified Date: January 13, 2016Filesize: 673kB
Tech Talk #01 Service and Upkeep of Fluorescent SystemsModified Date: January 13, 2016Filesize: 508kB