Purkeys DIRECT PLUS Diagnostics Manual
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Purkeys DIRECT PLUS Diagnostics Manual

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A MISSION CRITICAL ELECTRONICS BRAND
DIRECT™PLUS
DIAGNOSTIC GUIDE
300-48 R1.01

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Summary of Contents for Purkeys DIRECT PLUS

  • Page 1 A MISSION CRITICAL ELECTRONICS BRAND DIRECT™PLUS DIAGNOSTIC GUIDE 300-48 R1.01...

  • Page 3: Table Of Contents

    Connections Outside Nosebox .................3 Wire Diagram .....................4 Basic Troubleshooting ..................4 No Lights on Face of the Nosebox ............4 Batteries Not Being Charged ..............6 Interior Lights Not Working (if installed) ...........11 Limited Commercial Warranty Policy ............13 P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net...

  • Page 4: Cover Assembly

    COVER ASSEMBLY INTERIOR LIGHT MODULE (OPTIONAL)

  • Page 5: Connections Inside Nosebox

    DIRECT PLUS DIAGNOSTIC GUIDE CONNECTIONS INSIDE NOSEBOX CONNECTIONS OUTSIDE NOSEBOX P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net...

  • Page 6: Wire Diagram

    WIRE DIAGRAM BASIC TROUBLESHOOTING NO LIGHTS ON FACE OF THE NOSEBOX Step 1: Make sure that connections are tight and inspect wiring for defects. Step 2: Check the 2 amp fuse in the battery box at the DC/DC converter. • If blown , replace •...
  • Page 7 • If no voltage is shown, reset the circuit breaker. • If there is still no voltage, check wiring for defects. • If no defects are found, replace the circuit breaker P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net...

  • Page 8: Batteries Not Being Charged

    Step 5: On the front of the trailer, remove the hardware holding the cover assembly to the nosebox base. • Place the voltmeter positive lead where the orange wire is connected. • Place the negative lead where the white wire is connected. •...
  • Page 9 #3 (ground). • Place the positive lead in pin #4 (ignition). Reading should be approximately 10-13 volts. • If yes, go to the next step. • If no, inspect the wiring and plug. P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net...
  • Page 10 Step 5: Next: • Place the voltmeter negative lead on the negative battery post. • Place the positive lead on the red junction stud closest to the converter. Reading should be 13+ volts. • If yes, proceed to the next step. •...
  • Page 11 • If there is a voltage reading, inspect the wiring between the battery box and the cover assembly. • If there is no voltage reading, check the 30 amp fuse and replace if blown. P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net...
  • Page 12 Step 9: Next: • Place the voltmeter positive lead where the blue wire is connected. • Place the negative lead where the white wire is connected. Should read tractor voltage. • If there is a voltage reading, inspect the wire for defects and replace if necessary.

  • Page 13: Interior Lights Not Working (If Installed)

    Should read power source voltage. • If yes, proceed to the next step. • If no, inspect the jumper between the cover assembly and the module. Replace if necessary. P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net...
  • Page 14 Step 3: Next: • Place the voltmeter positive lead on the 30 amp fuse on the module. • Place the negative lead on the gray wire stud on the cover assembly. • The voltage should read 0 or a very low voltage. •...

  • Page 15: Limited Commercial Warranty Policy

    Product or failure of a part not manufactured by Purkeys. This warranty shall not apply if any Purkeys product is used for a purpose for which it is not designed or is in any way altered without the specific prior written consent of Purkeys. ANY...

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