Vmac VR70 Installation Manual

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
V 9 0 0 0 8 9
2 0 0 6 - 2 0 0 7 G MC C l a s s i c C 4 5 0 0 - 5 5 0 0
6 . 6 L D u r a ma x 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 V 9 0 0 0 8 9 2 0 0 6 - 2 0 0 7 G MC C l a s s i c C 4 5 0 0 - 5 5 0 0 6 .
  • Page 3: Table Of Contents

    5.2 After Starting the Engine Checklist........31 5.3 Setup, Performance Testing and Adjustments....32 5.4 System Identification and Warnings........33 5.5 Auxiliary Air Receiver ............34 Accessory Products from VMAC ..........35 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 4 If you have difficulty with the installation, contact VMAC. The VMAC warranty form is located at the back of this manual. This 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

    If you must move the tank, the lines may be too short. If this is the case, measure the hose shortfall and order a Hose Extender Kit. The following table shows the color code used by VMAC to define the different hose diameters. Hose Diameter Colour-Coded Label...
  • Page 6: Special Installation Notes

    • assorted sizes of fireproof protective plastic loom • assorted lengths of nylon tie-straps An alternate tank mounting system using frame hangers is available. Contact VMAC to order the tank mount bracket accessory pack. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622...
  • Page 7: Part 1: Preparing For Installation

    Remove the upper fan shroud. Remove the mount bolts from the lower fan shroud, but leave the shroud in position. □ Remove the fan. □ Remove the passenger side intercooler tube and hoses. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 8 Remove the alternator (passenger side on dual alternator trucks) and keep the bolts. □ Remove the OEM idler and tensioner from the alternator mount bracket. □ Remove the OEM alternator mount bracket. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 9: Dual Alternator Trucks

    □ Install a crankshaft locking tool, remove the crank pulley bolt and remove the crank pulley. If you are using the VMAC tool: • put the socket on the nut • put the single-pin end of the tool on the front of the pulley with the locking tool hanging straight down •...
  • Page 10 High-strength crank pin Figure 1.1 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 11: Part 2: Installing The Main Bracket And Compressor

    Install OEM back idler here Install the OEM tensioner here OEM 10 mm nuts M10 x 85 mm socket head bolts (one behind the VR tensioner) Figure 2.1 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 12 Install the compressor on the bracket without the inlet valve and thread in the two front M8 x 25mm bolts with serrated washers. □ Install the rear M8 x 20 mm bolt with serrated washer. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 13: Installing The Cooler

    Install each hose section back to the original positions, between the radiator and the cooler and the engine and the cooler. □ If necessary, trim the engine end at “B” for a proper fit. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 14 Figure 2.3 Heater hose connection 1” To engine Cut and discard if necessary to fit Discard 1” To Radiator these sections To coolant expansion tank 12” 7 1/2” Figure 2.4 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 15: Part 3: Installing The Tank And Hoses

    □ Pass the tank through the cut out section in the front step support panel then align the tank through the rear cut-out in the rear step support panel. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 16 Thread the straight end of the longest 1/2 inch hose onto the matching fitting on the front of the tank. Route the hose up over the inside of the driver side frame rail and over the steering box. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 17 □ Apply a light coating of oil to the filter gasket and install the filter on the tank. Tighten an additional 3/4 turn after the gasket contacts the base. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 18: Filling The System With Oil

    You must use VMAC 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 Install the air conditioning compressor and the replacement belt. • 105 AMP alternator VMAC part 1610337 Gates K061150 • 150 AMP alternator VMAC part #1630202 Goodyear Gatorback belt 4061175 (extra belt with 150 amp alt) • Dual alternator use OEM belt (Figure 3.4) Alternator...
  • Page 20 Install the supplied 5/8 inch hose barb connector to the cut heater hose, then install the 14 inch length of supplied heater hose between the hose barb connector and the lower radiator hose connector. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 21 Use a plastic tie to secure the two air conditioning lines together down by the lower radiator hose to keep the lines from contacting the compressor belt. □ Install the VR compressor belt (Figure 3.6). VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 22 1/4 inch bolt with flange lock nut and washer (Figure 3.7). Figure 3.7 □ Install the supplied glow plug locating bracket onto the main bracket and leave the bolts loose (Figure 3.8). VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 23 Figure 3.8 □ Use the two M8 x 20 mm OEM bolts to mount the OEM glow plug bracket to the supplied bracket (Figure 3.9). Figure 3.9 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 24 Add protective loom to hoses and wiring where they contact components and tie all coolant and oil hoses together where possible away from sharp edges or sources of heat. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 25 Install all other OEM parts removed previously. Check all the hoses, lines and OEM harnesses to make sure that they are secured and protected. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 26: Part 4: Installing The Control Components

    Part 4: Installing the Control Components VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 27: Installing The Control Components

    Connect the red wire from the interface connector to the red wire from the throttle controller. □ Connect the ground wires from the interface connector and the throttle control to a good ground under the dash. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 28 Driver side kick panel removed Driver’s door Park brake wire connector with light blue wire Chassis ground wire connection Figure 4.1 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 29: Connecting The Underhood Wiring

    4.3). Peel back the tape on the wire bundle for easier access to the wires. White wire Orange wire with a black with a black stripe stripe Figure 4.3 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 30: Connecting The Power Supply Wire

    Pull all excess wiring back into the cab, bundle the wiring together and tie it up out of the way under the dash. □ Replace all dash panels and other covers removed during installation. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 31 If the vehicle 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 1-800-738-8622 or 250-740-3200. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622...
  • Page 32: Part 5: Finishing The Installation

    If the fuel line has been disconnected, pump the primer on the fuel filter (Figure 5.1) and use the bleed valve to remove air from the fuel system. Hand push pump Fuel filter Figure 5.1 VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 33: After Starting The Engine Checklist

    If you see unusual belt fluctuations during initial operation, stop the engine and move the tensioners back and forth, then restart the engine. Belt fluctuations should stop within the first 30 minutes of operation. VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 34: Setup, Performance Testing And Adjustments

    5. Operate the air compressor system until the oil is warm. 6. Observe the pressure gauge. Pressure should be approximately 150 psi (See the owner’s manual for adjustment procedures). VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201...
  • Page 35: System Identification And Warnings

    The System Identification Number Plate must be attached to the vehicle at the time of installation (Figure 5.3). 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, then secure the plate with self-tapping screws.
  • Page 36: 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 to stop moisture from entering the VMAC tank (Figure 5.5).
  • Page 37: 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 1-800-738-8622. Eliminator Aftercooler Removes up to 80% of moisture from compressed air. Quick installation,...
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  • Page 40 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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