Vmac VR70 Installation Manual
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Vmac VR70 Installation Manual

Underhood air compressor
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V R 7 0 U N D E R H O O D
A I R C O MP R E S S O R
I N S T A L L A T I O N MA N U A L
S y s t e m V 9 0 0 0 8 4
2 0 0 5 - 2 0 0 6 D o g e
5 . 9 L 2 4 V a l v e C u mmi n s D i e s e l
w w w . v ma c a i r . c o m

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Summary of Contents for Vmac VR70

  • Page 1 V R 7 0 U N D E R H O O D A I R C O MP R E S S O R I N S T A L L A T I O N MA N U A L S y s t e m V 9 0 0 0 8 4 2 0 0 5 - 2 0 0 6 D o g e 5 .

  • Page 3: Table Of Contents

    5.2 After Starting the Engine Checklist........24 5.3 Setup, Performance Testing and Adjustments....26 5.4 System Identification and Warnings........27 5.5 Auxiliary Air Receiver ............28 Accessory Products from VMAC ..........29 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 4 If you have difficulty with the installation, contact VMAC. The VMAC warranty form must be completed and mailed or faxed to VMAC at the time of installation for any subsequent warranty claim to be considered valid.

  • Page 5: General Information

    Different frame designations will affect the tank mounting position. If you have to move the tank, the lines may be too short. Measure the hose shortfall and order a Hose Extender Kit. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 6: Part 1: Preparing For Installation

    Place the OEM crank pulley on the front of the crankshaft and rotate it to align it with the locating pin. Place the VR pulley in front of the OEM crank pulley and align it with the locating pin. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 7 Remove the plug from the cylinder head (Figure 1.1) and install the supplied 1/2 inch NPT to 5/8 inch hose barb in the cylinder head port. Remove this plug Figure 1.1 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 8: Part 2: Installing The Tank

    18 inches from the weld. □ Place the two L-shaped tank strap mounts under the C-clamps with the right-angle ends facing you and hanging over the edge of the work bench. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 9 Check tank alignment then tighten the C-clamp bolts. □ Slide the tank all the way up on the tank mount brackets (away from you) and tighten the mounting bolts. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 10: Installing The Tank Assembly

    Install a 3/8 inch nut and washer on each cable, adjust the tank for best fit between the cab mounts and tighten the nuts. Install and tighten a second 3/8 inch nut on each cable as a lock. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 11: Part 3: Installing The Cooler And Compressor

    Thread nuts on each cable and tighten them. Install and tighten a second nut to act as a lock. To Engine Spacer To Radiator Front Passenger Anti-roll bar side frame bracket rail Cable straps Figure 3.1 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 12: Installing The Main Bracket And Compressor

    Apply Loctite and install the M8 x 30 mm hex head bolt with flat washer through the bracket and into the front passenger side hole on the compressor. Torque the fasteners to specifications. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 13: Connecting The Hoses

    Route the tubes through the frame up to the compressor and connect them to the matching fittings on the compressor inlet valve. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 14: Completing The Installation

    Remove the OEM screws holding the fan to the hub and replace it with the supplied replacement fan, fastening it in place with the 5/16 x 5/8 inch button-head screws. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 15 Lay the supplied replacement fan in the centre of the shroud and pass the fan wire harness and steel sheath through the new hole in the shroud (Figure 3.5 - viewed from the front). Figure 3.5 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 16 Locate the fan shroud on the remaining three OEM mount brackets and install the OEM nuts, then install the two supplied M6 bolts to the upper passenger side mounting bracket. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 17 □ Insert the engine wire harness to clips where possible. Reroute the harness so that it is clear of the compressor and moving parts. Secure it as required. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 18: Adding Oil To The System

    Secure them with nylon ties and use plastic loom as required. 3.5 Adding Oil to the System You must use the VMAC supplied and approved compressor oil in this system. Failure to use this special oil will result in damage to the compressor and will void your warranty.

  • Page 19: Part 4: Installing The Control Components

    Part 4: Installing the Control Components Main Wiring Diagram VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 20: Installing The Control Boxes

    Mount the throttle control under the dash to the right of the steering column so that the connectors will easily reach the accelerator pedal. Secure it in place with ties. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 21: Connecting The Wiring

    □ Remove the plastic fastener above the firewall on the driver’s side of the engine compartment. Mount the relay using the supplied bracket and fasteners (Figure 4.1). VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 22 Solder and seal the white wire from the throttle control to the dark blue with gray stripe wire at pin 24 of connector 1 on the ECM (Figure 4.2). VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 23 Pin 3 is usually empty. Make sure that you count pins, not wires. □ Solder and seal the purple “Ignition switched 12 volts” wire from pin 86 of the relay to the wire in pin 4. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 24 Figure 4.3 4.2.2 Manual Transmission □ Cut the long blue wire to about 6 inches, strip the end and connect it to the short blue wire with the crimp connector. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 25: Completing And Testing The Installation

    If the truck fails the test, check the wiring to make sure that all the connections are correct and secure. If you require additional assistance, contact your local VMAC dealer. Call 1-888-241-2289 or 250-740-3200. VMAC – Vehicle Mounted Air Compressors...

  • Page 26: Part 5: Finishing The Installation

    The display on the control box should read “Park Brake”. Apply the park brake and press the ON button. Engine speed will increase to 2200 RPM and then drop to 900 RPM. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...
  • Page 27 Check the coolant level after the engine has been operated. □ Check the compressor oil level after the engine has been shut down and the oil level has had time to stabilize. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-888-241-2289 Fax: 1-250-740-3201...

  • Page 28: Setup, Performance Testing And Adjustments

    Figure 5.1 1. Install the test tool in the tank outlet fitting. If you are using the VMAC test tool, use the correct orifice fitting (small hole for VR70, large hole for VR140). 2. Make sure that the ball valve is closed.

  • Page 29: System Identification And Warnings

    The System Identification Number Plate must be attached to the truck at the time of installation. This plate provides information which allows VMAC to assist in customer inquiries and the ordering of parts. Mark and drill two 7/64 inch holes to the top surface of the radiator support in front of the battery, then secure the plate with self- tapping screws.

  • Page 30: Auxiliary Air Receiver

    The line from the VMAC tank to the auxiliary air receiver must have a one-way check valve installed (part #3600078) to prevent blow back from the auxiliary tank and to stop moisture from entering the VMAC tank (Figure 5.4).

  • Page 31: Accessory Products From Vmac

    Accessory Products from VMAC The following accessory products for your VR compressor system are available from VMAC. For more information or to order these products, call toll free 1-888-241-2289 or local 250-740-3200. Eliminator Aftercooler Part Number A800070 Removes up to 80% of moisture from compressed air.
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  • Page 36 Ma n u f a c t u r e d b y P H 2 5 0 - 7 4 0 - 3 2 0 0 F X 2 5 0 - 7 4 0 - 3 2 0 1 T F 1 - 8 0 0 - 7 3 8 - 8 6 2 2 1 3 3 3 K i p p R o a d , N a n a i mo , B C , V 9 X 1 R 3 C a n a d a w w w .

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