Vmac Underhood 70 Installation Manual
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Vmac Underhood 70 Installation Manual

2020 ford super duty f250-f550 6.7 l diesel
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AIR COMPRESSORS
Installation Manual for VMAC
System
V900160
2020 Ford Super Duty F250 – F550
6.7 L Diesel
www.vmacair.com

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Summary of Contents for Vmac Underhood 70

  • Page 1 AIR COMPRESSORS Installation Manual for VMAC System V900160 2020 Ford Super Duty F250 – F550 6.7 L Diesel www.vmacair.com...

  • Page 3: Table Of Contents

    Accessory Products from VMAC ........
  • Page 4 Copyright © 2020 VMAC Global Technology Inc. All Rights Reserved. These materials are provided by VMAC for informational purposes only, without representation or warranty of any kind, and VMAC shall not be liable for errors or omissions with respect to the materials. The only warranties for VMAC...

  • Page 5: Safety

    VMAC will not be held responsible for any liability, consequential damages, injuries, loss or damage to individuals or to equipment as a result of the failure of anyone to properly adhere to the procedures set out in this manual or standard safety practices.

  • Page 6: Warranty

    1 October, 2015. Warranty Registration The VMAC warranty registration form is located near the back of this manual. This warranty registration form must be completed and sent to VMAC at the time of installation for any subsequent warranty claim to be considered valid.
  • Page 7 2. VMAC will provide direction for repair or replacement of the failed components. 3. If requested, failed parts must be returned to VMAC for evaluation. 4. Dealers may login to the VMAC website to view the "VMAC Labour Time Guide" (under “Agreements”) to see the allowable warranty labour times.

  • Page 8: General Information

    Please contact VMAC for replacement hoses and further information. Ordering Parts To order parts, contact a VMAC dealer. The dealer will ask for the VMAC serial number, part number, description and quantity. Locate the nearest dealer online at www.vmacair.com/dealer-locator or call 1-877-912-6605.
  • Page 9 All fasteners must be torqued to specifications. Use manufacturers’ torque values for OEM fasteners. The torque values supplied in Table 1 are intended for VMAC supplied components, or for use as a guide in the absence of a torque value provided by an OEM.

  • Page 10: Preparing For Installation

    Review the contents of the system using the illustrated parts list to ensure all components are present and in the correct quantity. If any components are missing, have the system ID ready and call VMAC Technical Support. ☐ Disconnect both batteries.
  • Page 11 ☐ Unclip the vacuum assembly from the back of the primary degas bottle (Figure 4). Unclip Disconnect assembly hose Figure 4 — Remove the vacuum assembly VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 12 Remove and discard the cable run tray from the driver side battery cables (Figure 6). Remove cable run tray Figure 6 — Remove cable run tray VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 13 Remove the OEM idler from the bracket (Figure 8). Remove shroud post Note location and remove OEM idler Figure 8 — OEM alternator and power steering bracket VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 14 (VMAC location) Adaptive power steering bushing (OEM location) Figure 9 — Adaptive power steering pump Figure 10 — Standard power steering pump (for comparison) VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 15 Figure 12 — Remove the primary drain-back hose ☐ Using the supplied 1/4 in loom, cover the small sections of harness at the rear of the engine (Figure 12). VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 16: Relocating The Abs Hydraulic Control Unit (Hcu)

    Adjust one brake line at a time. If there is a significant amount of brake fluid escaping from the fitting, the pedal is being pressed too hard and/or the fitting has been loosened too much. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 17 *If the vehicle is equipped with EPAS, turn to the next page. ☐ *If the vehicle is not equipped with the EPAS, skip to page 19. Steering assist module Figure 13 — Steering assist module VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 18 Remove the bolt and (×2) nuts securing the HCU base bracket to the shock tower and set them aside. Remove the HCU base bracket (Figure 15). Figure 15 — Relocating the HCU VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 19 Figure 16 — Modifying the HCU bracket ☐ Using the supplied flat head fastener, install the HCU relocation bracket (Figure 17). HCU relocation bracket Figure 17 — Relocating the HCU VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 20 (Figure 19). Reinstall both nuts Reinstall bolt Figure 19 — Relocating the HCU ☐ Using the OEM fasteners retained earlier, secure the HCU module to the bracket. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 21 Figure 20 — Relocating the HCU ☐ Using the supplied flat head fastener, install the HCU relocation bracket (Figure 21). HCU relocation bracket Figure 21 — Relocating the HCU VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 22 Using the OEM fasteners retained earlier, secure the HCU base bracket to the shock tower (Figure 23). Reinstall both nuts Reinstall bolt Figure 23 — Relocating the HCU VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 23: Modifying The Hoses, Installing The Cooler

    Position the supplied abrasion mesh to protect the hose where it contacts the hard lines and secure it in place. ☐ Tighten all of the gear clamps. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 24 4 1/2 in along the outside radius towards the center of the hose and mark with a grease pen (Figure 27). 4 1/2 in To radiator Figure 27 — Lower radiator hose modification VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 25 (Figure 29). Mesh abrasion sleeve Figure 29 — Radiator side anti-abrasion sleeve (Coolant assembly removed from vehicle for clarity) VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 26 6 in coolant hose abrasion sleeve Figure 30 — Engine side anti-abrasion sleeve ☐ Mount the cooler to the cooler bracket (Figure 31). Figure 31 — Install cooler VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 27 ☐ Connect passenger and driver side radiator hoses, and tubes to the VMAC cooler. Route the steel tube connectors between the cross member and the radiator support (Figure 32). Figure 32 — Install radiator hoses and tube connectors ☐ Connect the modified OEM hoses as indicated (Figure 33).
  • Page 28 OEM hard line and secure using a hose clamp (Figure 36). OEM flexible OEM hard hose hose (plugged) Front of vehicle VMAC supplied Flexible hose Figure 36 — Plug the flexible hose VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 29 Connect the hose to the small spigot on the passenger side of the cooler using a hose clamp (Figure 37). Front of vehicle Figure 37 — Connect hose to VMAC cooler ☐ Using the supplied P-clips and clip nuts, secure the heater hose to the radiator support.

  • Page 30: Modifying The Fan Shroud And Fan Stator

    Modifying the Fan Shroud and Fan Stator ☐ Cut a relief for the VMAC crank pulley between the (×2) lower stator mounts (Figure 38). 3/4 in 1/2 in 3 1/2 in Figure 38 — Stator modifications ☐ From the bottom left stator mount, count (×4) vanes in a clockwise direction and mark the left side of the vane with a grease pen.
  • Page 31 Cut a rectangle out of the soft rubber section on the back of the fan shroud (Figure 40). 1/2 in 8 in Figure 40 — Fan shroud modification VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 32 Follow the edge of the molded bracket Figure 41 — Fan shroud modification ☐ Use the VMAC power steering bracket as a template to locate and mark the location of the top hole (Figure 42). 1 3/4 in 1 3/8 in...
  • Page 33 Place the (×2) supplied fender washers on the radiator side of the fan shroud and secure with the supplied nylon lock nuts (Figure 43). Figure 43 — Installing the power steering fluid reservoir bracket VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 34: Installing The Main Bracket, Idler Bracket And Compressor

    If required, adjust the bushing position using the OEM fastener and a shim block. ☐ Remove the upper bolt securing the OEM cable tray to the primary water pump in preparation for VMAC bracket installation VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 35 Place the alternator on its back on a bench with the pulley facing up. ☐ Align the VMAC main bracket over the top of the alternator, with the mating surface facing down. Lower the bracket over the alternator (Figure 45) Figure 45 —...
  • Page 36 Install the alternator using the OEM alternator bolts ☐ Install the retained rubber bushings onto the (×4) OEM fasteners and mount the bracket onto the engine. The VMAC bracket uses the same mount location as the OEM bracket (Figure 47). OEM bracket...
  • Page 37 Using a cable tie, secure the OEM cable tray to the water pump (Figure 49). Figure 49 — Installing the cable tray ☐ Using the (×3) OEM bolts, install the power steering pump onto the VMAC main bracket. ☐ Protect the battery cables, and alternator harness, using a piece of the scrap radiator hose retained earlier in the installation and secure with cable ties.
  • Page 38 Install and tension the OEM belt (Figure 51 or Figure 52). Figure 51 — OEM single alternator belt routing Figure 52 — OEM dual alternator belt routing VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 39 Remove the inlet valve from the compressor and cover the opening to prevent debris entering the compressor. Due to the weight of the compressor, VMAC recommends having an assistant hold the compressor in place while the bolts are threaded. ☐...
  • Page 40 Remove the protective covering and reinstall the Viton O-ring and inlet onto the compressor. Torque to specification (Figure 54). M8×1.25×55 M8×1.25×50 M8×1.25×75 Figure 54 — Install the inlet VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 41 ☐ Remove the tensioner and idlers from the VMAC FEAD bracket. ☐ Install the VMAC FEAD bracket onto the VMAC main bracket (Figure 55). Figure 55 — Installing the FEAD bracket ☐ Reinstall the idlers and tensioner and torque to specification.

  • Page 42: Installing The Air Oil Separator Tank (Aost)

    Separator Tank (AOST) Dependent upon other installed equipment, it may be necessary to move the AOST from its intended location. The hoses used in VMAC compressor systems have a specific inner liner that is compatible with VMAC compressor oil. Use of hoses other than those supplied or recommended by VMAC may cause compressor damage and may void the warranty.
  • Page 43 *Apply Loctite 242 (blue) to the (×2) 3 in × 1/4 in pinch bolts and install them into the mounting clamps. Leave the fasteners finger tight to allow for adjustment when installing the hoses. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 44 Figure 59 — Securing the AOST (Rear view) AOST orientation is critical. The arrow must be pointing up to prevent compressor failure due to oil starvation, or oil in the discharge air. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 45: Hose Requirements

    Based on the desired location of the AOST, the hose lengths provided with this system may not be ideal. VMAC suggests first trying to adjust the AOST within its mounts to take up any excess slack in the hoses. If this is not effective, the hoses can be shortened or replaced as necessary, or hose extenders can be used.

  • Page 46: Routing And Connecting The Hoses

    Cut the tube squarely, using only the tube is fully inserted proper tubing cutters as side cutters will deform the tube. O-ring Figure 60 — Push-to-connect fittings VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 47 Figure 61 — Routing the hoses ☐ Apply the supplied loom to the 1/4 in and 3/16 in PTFE tubes. ☐ Connect the PTFE tubes their respective fittings on the inlet. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 48 3/4 in hose using cable ties. ☐ Install the 90° brackets onto the transmission cooler studs (Figure 63). Transmission Engine oil cooler Figure 63 — Routing the hoses VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 49 (hose removed for clarity) ☐ Slide the M8×1.25×25 fastener into the slot on the passenger side frame rail (Figure 65). M8×1.25×25 Figure 65 — Discharge hose strap VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 50 ☐ Bundle the hoses together and secure with cable ties. ☐ Move the steering between the left and right lock positions to confirm adequate clearance. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 51: Relocating The Battery

    If relocating the battery to a different location (such as the service body), refer to the wire size table below (Table 2). The wire gauges VMAC recommends are designed to provide an equivalent resistance to that provided by the firewall mounting kit, which has been extensively tested by VMAC.
  • Page 52 Figure 68 — Mount battery disconnect bracket ☐ Apply the 5/8 in loom to the VMAC battery extension cables. ☐ Connect the VMAC and OEM battery cables to the battery disconnect bracket (Figure 69). OEM negative VMAC positive battery battery cable...
  • Page 53 Bundle the excess length of the OEM battery cables and secure them where they will not contact any hot, sharp or moving parts. ☐ Route the VMAC battery extension cables down to the driver side frame rail. ☐ Disconnect the positive OEM battery terminal from the VMAC battery disconnect.
  • Page 54 Ensure any OEM harnesses that were shifted for the battery box mount brackets are resecured. ☐ Remove the top rear fastener from the mounting bracket (Figure 72) Remove fastener Figure 72 — Installing the battery box VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 55 Route the battery cables under the frame rail. ☐ Apply dielectric grease to the battery terminals and connect them to the battery (Figure 74). Figure 74 — Installing the battery box VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 56 Do not secure the excess battery cables to the brakes lines, or any harnesses as they could inadvertently be damaged if the battery box is lowered from the mounts prior freeing the excess battery cable. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 57: Modifying And Installing Charge Air Cooler And Washer Bottle

    Install the fan spacer onto the fan driver. ☐ Install the fan. ☐ Install the fan harness using the VMAC fan wire spacer, washer and bolt. ☐ Connect the fan harness. ☐ Install the upper fan shroud; leave the lower driver side bolt finger tight.
  • Page 58 Using the OEM fastener, install the supplied windshield washer bottle bracket (Figure 78). Install windshield washer bottle bracket Figure 78 — Installing the windshield washer bottle bracket VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 59 Mount the lower harness, and hood latch cable “push mounts” to the degas tank bracket. ☐ Using the supplied fasteners, install the windshield washer bottle (Figure 80). Figure 80 — Install the windshield washer bottle VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 60 Connect the washer bottle hose and electrical connectors. ☐ Using the supplied fasteners, mount the CAC relocation bracket (Figure 82). Figure 82 — Install the degas relocation bracket VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 61 ☐ Secure the vacuum brake assembly to the mounting bracket on the degas tank. ☐ Using cable ties, secure any other vacuum system components as necessary. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 62: Adding Oil To The System

    Adding Oil to the System The VMAC supplied and approved compressor oil must be used in this system. Failure to use this special oil will result in damage to the compressor and will void warranty. Do not overfill the system. Overfilling the system with oil can flood the sight glass window and make the system appear empty.

  • Page 63: Cac And Hoses

    Figure 86 — Installing the CAC ☐ Secure the CAC to the CAC relocation bracket. Install the fastener nearest the firewall first using a VMAC supplied fastener. Reuse the OEM fastener in the upper mount location (Figure 87). Reuse OEM...
  • Page 64 (Figure 89). Figure 89 — Installing the CAC hoses ☐ Install the quick connect onto the CAC (Figure 89). VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 65 Install the supplied heater hose onto the straight hose barb and secure it using a gear clamp. ☐ Install the supplied abrasion sleeve onto the heater hose approximately 3 in from the end of the hose extension (Figure 91). VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 66 Secure the OEM MAF harness to the heater hose as required. ☐ Secure the supplied abrasion sleeve onto the CAC side hose (Figure 93). Figure 93 — Installing the secondary coolant hose VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 67 Remove the quick connect fitting from the OEM hose and reinstall it on the vehicle. Save the hose clamp for reuse (Figure 95). Figure 95 — Installing the CAC hoses VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 68 Remove “staking” Remove “staking” Figure 96 — Installing the CAC hoses ☐ Install the VMAC supplied “cold” CAC hose and secure with OEM hose clamps (Figure 97). OEM clamp OEM Clamp VMAC CAC “cold” hose Figure 97 — Installing the CAC hoses...
  • Page 69 CAC Hot ducting ☐ Install the supplied (×3) in hose (2 1/2 in ID) silicone hose onto the VMAC supplied “hot” CAC tube and secure with a VMAC supplied hose clamp. Ensure the tube is inserted 1 1/2 in into the silicone hose (Figure 98).
  • Page 70 Figure 100 — Install circlip ☐ Install the OEM “hot” CAC tube into the VMAC silicone hose. Ensure the silicone hose has equal coverage of both components. Install the gear clamps with the screw heads facing the firewall to provide the best fit (Figure 101).
  • Page 71 Verify that there is adequate clearance between the CAC tube and the hood. ☐ Install the secondary coolant reservoir. ☐ Install the engine air intake duct. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 72 ☐ Reinstall the OEM quick connector using the supplied gear clamp. ☐ Remove the protective cover from the engine spigot and reinstall the upper radiator hose. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 73: Installing The Control Components

    Do not use a test light to probe for power on vehicle circuits, the increased current draw of the test light may damage components. • VMAC recommends using only sealed crimp and solder butt connectors for all electrical connections. •...
  • Page 74 Digital Throttle Control Wire Schematic Figure 107 — Digital throttle control VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 75 4-pin connector, over to the SEIC interface located behind the kick panel in the passenger side footwell. There is a wire run behind the glove compartment. Secure the wires as necessary using cable ties. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 76 Connect the red wire with the bullet connector, running from the control box, to the matching red wire running from the throttle control. ☐ Splice the red wire running from the VMAC 4 pin interface connector to the green wire with orange stripe (CBP22). ☐...

  • Page 77: Completing The Installation

    Fill the VMAC degas tank with the coolant saved from the primary coolant system (Figure 109). Figure 109 — Degas fill level ☐ Install the cap retained from the OEM degas bottle onto the VMAC degas tank. ☐ Fill the secondary coolant reservoir with coolant saved from the secondary coolant system.
  • Page 78 The System Identification Plate must be attached to the vehicle at the time of installation. This plate provides information that allows VMAC to assist with parts and repairs. ☐ Locate a conspicuous area in the engine bay (where the tag will be easily noticed) to install the System ID tag.
  • Page 79 A good spot for this is usually on the inside of the door or on the panel underneath the steering wheel (Figure 113). Figure 113 — Operating Instruction label VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 80: Recommended Accessories

    Recommended Accessories While the compressor system will function without the following accessories, VMAC strongly recommends their use for optimal performance. See the “Accessory Product” section of this manual on page 86 for a list of products available for purchase through VMAC.

  • Page 81: Air Receiver Tank

    The VMAC compressor system will automatically depressurize when it is shutdown, therefore the hose from the VMAC AOST to the air receiver tank must have a check valve installed; this prevents blow back and moisture from the receiver tank...

  • Page 82: Testing The Installation

    Check all wiring for security and protection. Ensure nothing is touching the compressor body. ☐ Install the VMAC Air Test Tool (P/N: A700052) with the 70 cfm (0.190 in) orifice installed and the ball valve closed. ☐ Ensure all of the compressor outlets are closed.
  • Page 83 After the initial slow ramp, the throttle will respond normally to air demand ☐ When the VMAC system is first engaged, the engine speed should increase to 1,500 rpm and then drop down to VMAC base idle (approximately 1,000 rpm) once system pressure is reached.
  • Page 84 Final Testing Ensure the following has been completed: ☐ Operate the system with an air tool (or the VMAC Air Test Tool with the appropriate orifice installed) for at least 1/2 hour (1 hour preferred). ☐ Road test the vehicle for approximately 14 miles (20 km).

  • Page 85: Performance Testing And System Adjustments

    Performance Testing and System Adjustment System operation can be tested using the tools that will be operated by the system or by using the VMAC Test Tool (A700052) with the 70 cfm (0.190 in) orifice in the outlet to simulate tool use (Figure 115).

  • Page 86: Digital Throttle Control Operation And Adjustments

    The throttle control is configured at the factory for optimum performance at maximum cfm. In applications where maximum cfm is not required, or noise is a concern, the throttle control can be adjusted to reduce the maximum VMAC rpm. Safety features...
  • Page 87 MAX RPM Maximum VMAC rpm can be adjusted between 1,500 rpm and 2,500 rpm (in 50 rpm increments) via the ““ or “” buttons in the “MAX RPM” column. If the system is at full system pressure while the rpm is being adjusted, the engine speed will increase to the new value for 4 seconds, then return to base idle.

  • Page 88: Accessory Products From Vmac

    Compressor Service Kits 200 Hour or 6 Month Service Kit - Part number: A700059 Includes 9 L VMAC high performance compressor oil, oil filter, air filter, and next service due decal. 400 Hour or 1-Year Service Kit - Part number: A700060...
  • Page 89 VMAC De-icer Kit Part number: A700031 Cold climate heater package for operating VMAC compressors in cold climates; proven at temperatures of -30 °C (-22 °F). Requires 12V DC at 10A. 10 Gallon, 200 psi Air Receiver Tank w/ Mounting Feet...
  • Page 90 Notes VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 91 Notes VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 92 Notes VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...
  • Page 93 Notes VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: www.kb.vmacair.com...

  • Page 94: Warranty Registration

    Warranty Registration This form must be fully completed and returned to VMAC at the time the vehicle is put into service. Warranty may be void if this form is not received by VMAC within 3 months of receiving the vehicle, or 200 hours of operation, whichever occurs first.
  • Page 96 Manufactured by ® 888-241-2289 tech@vmacair.com 877-740-3202 warranty@vmacair.com www.vmacair.com www.kb.vmacair.com 1333 Kipp Road, Nanaimo, B.C., V9X 1R3 Canada...

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