Vmac G300006 Installation & Owner's Manual

Gas engine driven 25 cfm air compressor with 100 v
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Gas Engine Driven 25 CFM
Air Compressor with 100 V
G300006
Installation, Owner's and Service Manual
VMACAIR.com

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Summary of Contents for Vmac G300006

  • Page 1 Gas Engine Driven 25 CFM Air Compressor with 100 V G300006 Installation, Owner’s and Service Manual VMACAIR.com...
  • Page 3: Table Of Contents

    Warranty ............... 9 G300006 Installation Manual ........11 Installation Requirements .
  • Page 4: Registered Trademarks

    Copyright © 2024 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: General Information

    The procedures described in this manual are the only approved methods of service and operation. Ordering Parts To order parts, contact a VMAC dealer. The dealer will ask for the VMAC System ID (see page 25), part number, description and quantity. Locate the nearest dealer online at https://www.vmacair.com/support/find-a-dealer...
  • Page 6: Important Safety Notice

    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 7: Safety Precautions

    Proper service and repair are important to the safety of the service technician and the safe, reliable operation of the equipment. Always use genuine VMAC replacement parts. The procedures described in this service manual are effective methods of service and repair.
  • Page 8 Never adjust or attempt to make any repairs to the system while the engine is running. Components and hoses under pressure could fail and cause serious injury or death. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 9: Electrical Shock Hazard

    2o0 Volts AC and can cause an electrical shock (regardless of whether equipment is plugged into the receptacles or not. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 10: General Warnings

    Never adjust or attempt to make any repairs to this system while the engine is running unless expressly instructed to do so. • Components and hoses under pressure could fail and cause serious injury or death. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 11: Warranty

    Owner’s Manual; (iii) proof of purchase of applicable service kits are made available to VMAC upon request. The VMAC Lifetime Warranty is applicable to new products shipped on or after 1 October, 2015. Warranty Registration The VMAC warranty registration form is located near the back of this manual.
  • Page 12 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 13: G300006 Installation Manual

    ® G300006 Installation Manual...
  • Page 15: Installation Requirements

    The belt guard is accessible and can be removed for service. • The engine oil drain, oil fill, fuel fill, and air filter are easily accessible for service (the VMAC Remote Oil Drain accessory can help facilitate servicing the engine and compressor oil P/N: A500043). •...
  • Page 16: Ventilation Requirements

    Exhaust and waste heat from the G30 system must be vented away from the system to prevent the gas engine from ingesting its exhaust and stalling. Figure 2 — Airflow diagram VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 17: Top Mounting

    Mounting Locations VMAC does not recommend mounting the unit at the back of the vehicle as the drag created when the vehicle is moving causes debris to be deposited (and accumulated) inside the unit. Ensure the engine exhaust and hot air generated by the gas engine and WHASP Tank cooler are routed in such a way as to prevent recirculation back into the unit.
  • Page 18 • Compressor air intake. vehicle / enclosure. • WHASP Tank. • Install an exhaust fan to remove hot air from the enclosure. Figure 3 — Mounting locations VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 19: Mounting The Compressor

    (Figure 4). All dimensions are in inches. 42.8 22.0 29.9 39.75 19.13 21.4 Figure 4 — External dimensions VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 20: Mounting The Unit

    ☐ Connect the downstream plumbing to the ball valve outlet. All dimensions are in inches. Ø 0.41 (×8) 18.0 12.0 12.0 14.75 0.56 Figure 5 — Base plate mounting configuration VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 21: Electrical Connections

    While the American Welding Society® Safety & Health Fact Sheet No. 29 (Grounding of Portable and Vehicle Mounted Welding Generators) is a great reference for grounding the G30, VMAC recommends working/consulting with a certified electrician and local regulatory bodies when grounding the G30.
  • Page 23: G300006 Owner's Manual

    ® G300006 Owner’s Manual...
  • Page 25: Safety Features

    The engine will not be able to be restarted until the system has cooled and the temperature switch has closed. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 26 GFCI self test indicator light 20 A breakers (100 V / 200 V circuits) 100 Volt GFCI Figure 8 — Generator safety components VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 27: Identifying Your System

    (Figure 10). G300006 A BC 123 Model number Unique identifier Production date code Revision letter Figure 10 — System ID breakdown VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 28: Operating Principles

    Operating Principles Air Compression The G30 uses a VMAC designed and manufactured flooded lobe, rotary screw compressor. The oil filled compressor housing contains 2 rotors. Compression occurs when air (at normal atmospheric pressure) enters a chamber where it is trapped between meshing rotor lobes. Cooled oil is injected into the rotors during compression to lubricate the rotors and bearings, absorb the heat of compression, and seal the rotor lobes to allow for efficient compression.
  • Page 29: Spark Arrester

    Filtration VMAC rotary screw compressors are designed and machined to exacting tolerances. Foreign particles entering the compressor can damage system components such as seals, bearings, rotors, as well as the inside of the housing, resulting in performance losses and reduced system life.
  • Page 30: Extreme Climates And Elevation

    Cold Environment Operation The G30 system is not designed or recommended for use in cold climates (below 0 °C / 32 °F) unless equipped with a VMAC cold climate kit (P/N: A500044). If equipped with the optional VMAC Cold Climate Kit...
  • Page 31: High Altitude Operation

    To avoid overheating the engine or compressor, VMAC recommends installing an air receiver tank. This will help to reduce the duty cycle of the compressor by allowing it to unload.
  • Page 32: System Components And Specifications

    WHASP Tank Compressor throttle control (OEM fuse located valve inside enclosure) Hour meter Battery Discharge valve Unloader valve Figure 11 — System overview (shroud removed for clarity) VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 33 System Components (Back) (Figure 12) • Lifting eye. • Belt shroud. • Fuel fill. • Exhaust shroud. Lifting eye Fuel fill Exhaust shroud Belt shroud Figure 12 — System overview VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 34: System Controls And Features

    Key switch Recoil pull Choke (OEM fuse located start inside enclosure) Throttle Fuel shut off Unloader valve Hour meter control valve Figure 13 — System controls overview VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 35: Before Starting The G30

    20° as this will affect lubrication and air/oil separation (Figure 14). Figure 14 — Do not exceed 20° grade New VMAC oil is clear and may be difficult to see in the sight glass. ☐ Clear any accumulated snow or ice from the G30 (page 28) ☐...
  • Page 36: Starting The Engine

    1) Ensure the throttle control valve is set to “COMPRESSOR ON”. 1) If equipped with the optional VMAC Cold Climate kit, ensure the kit is turned off. 1) Close the choke by moving the choke lever all the way to the left (Figure 15).
  • Page 37 10 seconds before operating the starter again. Using the starter for more than 5 seconds at a time will overheat the starter motor and may damage it. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 38 (Figure 18). Choke lever Figure 18 — Choke See chapter “Compressor and Generator Operating Instructions” on page 40 for operating instructions. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 39 Ensure the throttle control valve is set to “COMPRESSOR ON”. 2) If equipped with the optional VMAC Cold Climate kit, ensure the kit is turned off. 3) Turn the ignition key switch to the “ON” position.
  • Page 40 7) Pull the starter grip lightly until resistance is felt, then pull briskly in the direction of the arrow. Return the starter grip gently to prevent damage to the starter (Figure 21). Figure 21 — Pull cord VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 41 (Figure 22). Choke lever Figure 22 — Choke See chapter “Compressor and Generator Operating Instructions” on page 40 for operating instructions. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 42: Compressor And Generator Operating Instructions

    (Figure 24). Throttle control Set to “COMPRESSOR ON” Figure 24 — Throttle control valve VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 43: Generator Operation

    The unloader valve must remain actuated while generator operation is selected. ☐ Turn the throttle control valve to “GENERATOR ON” (Figure 26). Throttle control Set to “GENERATOR ON” Figure 26 — Throttle control valve VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 44: Stopping The Engine

    VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 45: Recommended Accessories

    44. Air receiver tanks are available for purchase through VMAC. See the “Accessory Products from VMAC” section of this manual on page 102 for more information. Pressure Gauge While not critical to system performance, a pressure gauge is important for fine tuning the system and simplifies any potential troubleshooting.
  • Page 46: Air Receiver Tank

    If this happens, the regulator on the inlet valve may need to be adjusted (see page 74 for instructions). The VMAC compressor system will automatically depressurize when shutdown. The WHASP Tank has a built in check valve that prevents blow back and moisture from the receiver tank entering the WHASP Tank.
  • Page 47: Setup, Performance Testing And Adjustments

    This system has been adjusted at the factory for general operation. 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 30 CFM (1/8 in) orifice in the outlet to simulate tool use (Figure 29).
  • Page 48: Engine Rpm Adjustment

    The engine “low idle” and “high idle” screws are set at the factory and do not require adjustment. The throttle actuator will automatically raise and lower the engine speed dependent upon air demand. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 49: Maintenance Schedule And General Maintenance Information

    The IPL is available free of charge from VMAC. The part number portion of the System ID will be needed to locate the correct IPL. See “Identifying Your System” on page 25 for the System ID location.
  • Page 50: Routine Maintenance

    The following maintenance schedule must be observed to maintain both the “Standard” and “Lifetime” VMAC warranties and to assure proper performance and long service life of the system. In the event of a warranty claim, VMAC may request service records.
  • Page 51: Service Kit Contents

    200 Hour / 6 Month Service Kit P/N: A700219 Part # Description 3600037 Air filter 9200039 Oil filter A700094 VMAC High performance oil (4 L) 400 Hour / 1 Year Service Kit P/N: A700220 Part # Description 3600037 Air filter 9200039 Oil filter...
  • Page 52: Engine Maintenance And Warranty Information

    Engine Maintenance and Warranty Information The VMAC G30 uses the Honda GX390UT2 engine (type: QNR2). For engine service intervals and instructions, refer to the Honda Owner’s Manual supplied with the system (VMAC P/N: 1901066). Failure to follow the instructions in the Honda Owner’s Manual could result in poor engine performance, engine damage and may void the Honda engine warranty.
  • Page 53: Maintenance And Repair Safety

    • Use only genuine VMAC parts to maintain the system. Genuine VMAC parts are designed to work with the high pressure and heat generated by the compressor. Substituting genuine VMAC parts may void the warranty and could cause equipment damage, injury, or death.
  • Page 54: Regular Inspection Instructions

    Wear appropriate Personal Protective Equipment and follow all industry standard safety practices. 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.
  • Page 55 ☐ Listen for the pressurized air to blowdown through the muffler on the WHASP Tank. Blowdown should be completed in approximately 20 seconds. ☐ If the muffler is showing signs of blockage, contact a local VMAC dealer for a replacement.
  • Page 56 135 psi indicates that the spring in the valve is worn and the valve must be replaced. ☐ If the pressure relief valve is showing loss of functionality, contact a local VMAC dealer for a replacement.
  • Page 57 ☐ Replace the cover and secure it with the filter cover retainer knob. Do not overtighten. Filter plate “step” Figure 34 — Compressor air filter and cover VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 58 ☐ Apply Loctite 242 (blue) to the (×10) fasteners and reinstall the belt guard. Refer to the IPL (starting on page 107) for the belt and tensioner part numbers. Figure 35 — Compressor and generator belts VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 59: General Service Information

    ☐ Ensure the system is fully depressurized prior to beginning any service work. ☐ Check the old oil for any evidence of metal filings or contamination. If any metal filings are found, flush the hoses and the ASP using the VMAC flushing kit (P/N: A700214).
  • Page 60: Hour / 6 Month Service Compressor Service

    Figure 37 — Compressor oil filter ☐ Inspect the Viton O-ring on the oil drain plug for damage, hardness or defects and replace if necessary. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 61 3/4 to 1 turn to seat the gasket. ☐ Remove the filler cap on the WHASP Tank. Fill the WHASP Tank with VMAC compressor oil until is reaches the “MAX” mark. The air compressor system holds approximately 4 L (1 USG) of oil (Figure 39).
  • Page 62 ☐ Once the system has sat for 5 minutes, check the oil level through the sight glass. The level must be between the “MIN” and “MAX” level indicators. ☐ Verify there are no oil leaks. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 63: Hour / 1 Year Service Compressor Service

    Figure 40 — Compressor oil filter ☐ Inspect the Viton O-ring on the oil drain plug for damage, hardness or defects and replace if necessary. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 64 3/4 to 1 turn to seat the gasket. ☐ Remove the filler cap on the WHASP Tank. Fill the WHASP Tank with VMAC compressor oil until is reaches the “MAX” mark. The air compressor system holds approximately 4 L (1 USG) of oil (Figure 42).
  • Page 65 ☐ Once the system has sat for 5 minutes, check the oil level through the sight glass. The level must be between the “MIN” and “MAX” level indicators. ☐ Verify there are no oil leaks. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 66: 300 Hour Engine Service

    These instructions are taken from the Honda GX390 Owner’s Manual and are included for convenience. VMAC strongly recommends reading the Honda GX390 Owner’s Manual to ensure that all system checks and services are completed as per Honda’s recommendations in order to maintain the Honda engine warranty.
  • Page 67 ☐ Check the engine oil level after the engine has been shut down and the oil level has had time to stabilize. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 68: Diagnostics And Trouble Shooting

    VMAC. • Additional troubleshooting and specific test procedures can be found on VMAC’s Knowledge Base www.kb.vamacair.com. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 69 Adjust inlet valve regulator Engine rpm does not set too low. to increase pressure. increase. Discharge valve failure. Replace discharge valve. Throttle actuator failure. Replace actuator. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 70 Inspect magneto. Symptom Possible Cause Corrective Action Torque fasteners, use Loose fasteners. appropriate thread locking compound. Excessive vibration. Replace components as Belt or pulley worn. needed. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 71 Oil comes out of the blowdown muffler. Faulty blowdown shuttle Replace blowdown shuttle valve. valve. Replace blowdown valve Blowdown valve failure. assembly. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 72 Symptom Possible Cause Corrective Action Air leaking from small hole This is normal and as per None required. in inlet valve regulator cap. design. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 73 Oil temperature switch Replace if defective. failure. Check for kinked or pinched Restricted oil lines. lines. See enclosure mounting Mounted in enclosure. parameters on page 16. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 74 Replace throttle actuator. Symptom Possible Cause Corrective Action Voltage fluctuation from Unloader valve not engaged Discontinue air usage and generator. and compressor in use. engage unloader valve. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 75: Diagnostic Tools

    Diagnostic Tools VMAC Air Test Tool (P/N: A700052) To properly diagnose the G30, a VMAC Air Test Tool (P/N: A700052), or equivalent, is required. For testing and diagnosis, install the 30 cfm (1/8 in) orifice (Figure 46). Ball valve JIC Adapters...
  • Page 76: System Adjustments

    ☐ Remove the push-to-connect fitting from the unloader valve and plug the valve using a 1/8 in NPT plug (Figure 48). 1/4 in NPT plug Figure 48 — Plug unloader valve VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 77 ☐ Connect the VMAC Air Test Tool (P/N: A700052) to the discharge fitting of the WHASP Tank. ☐ With the ball valve on the test tool closed, run the system and note the maximum pressure achieved (factory default is 140 psi).
  • Page 78 ☐ Make a locating mark on both the “Pressure Adjustment Locknut” and the “Pressure Adjustment Screw” (Figure 50). Locating marks Pressure Adjustment Screw Pressure Adjustment Locknut Figure 50 — Adjusting the Unloader Valve VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 79 ☐ While securely holding the “Pressure Adjustment Screw”, tighten the “Pressure Adjustment Locknut”. ☐ Test the system and repeat the steps above (if necessary) until the system unloads at 135 psi. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 80: Compressor Regulation And Throttle Actuator Testing

    Compressor Regulation and Throttle Actuator Testing Throttle Control VMAC configures the Honda engine throttle to be wide open in its neutral state (0 psi). Engine rpm is controlled via the throttle actuator which is operated by air pressure from the unloader valve.
  • Page 81 Figure 54 — Throttle actuator (“COMPRESSOR ON”) Throttle Control (GENERATOR ON) When the VMAC throttle control is set to “GENERATOR ON”, the air pressure from the discharge valve is blocked and the throttle is vented to atmosphere via a sintered muffler, allowing the Honda throttle to remain wide open (neutral state) (Figure 55).
  • Page 82 (Figure 57). 1/4 in compressor scavenge fitting 1/4 in WHASP Tank scavenge fitting (with one-way check valve) 1/4 in PTFE scavenge tube Figure 57 — Scavenge tube VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 83 3/16 in compressor fitting at inlet regulator 1/4 in PTFE pressure control tube Discharge valve Figure 59 — 3/16 in Pressure control tube (Belt guard removed for clarity) VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 84 ☐ Install the PTFE test tool (Figure 47 on page 73) on the 1/4 in throttle tube on the engine side of the 1/4 in PTFE Union (Figure 60). VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 85 Figure 61 — Test equipment installed VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 86: Compressor Connections

    Start the engine (see page 34), and monitor both pressure gauges: 1) As the pressure indicated on the VMAC test tool gauge reaches 135 psi, the gauge connected to the 1/4 in PTFE tube should indicate 135 psi. If the pressure on the gauge connected to the 1/4 in PTFE tube does not increase, confirm the unloader valve is properly adjusted.
  • Page 87 7) Air pressure on the from the 1/4 in throttle tube will vent to atmosphere via the sintered muffle mounted to the bottom of the VMAC throttle control. 8) Engine speed should increase to maximum rpm and remain there as long as the VMAC throttle control is set to “GENERATOR ON”.
  • Page 88: Electrical Components And Testing

    Electrical Components and Testing For generator specific testing information, search the VMAC Knowledge Base, or contact VMAC technical support. Figure 65 — VMAC electrical harness schematic VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 89: Electrical Components

    Use a “jumper” to supply 12 V to pin “A” of the fan plug and a ground to pin “B” of the plug to confirm the fan runs when power is supplied. Figure 66 — WHASP Tank cooling fan VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 90 Testing ☐ Use a multimeter to measure the resistance through the switch. The resistance should be 0 Ω when the system is cold. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 91: Component Repair / Replacement

    Remove the shroud and disconnect the negative battery cable. Undo the battery hold down strap (Figure 69). Negative battery cable Restraining strap Figure 69 — Battery hold down VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 92 ☐ Pull the battery out of the front of the unit, once it is clear, disconnect the positive battery terminal (Figure 70). Figure 70 — Battery removal ☐ Install the battery in the reverse order. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 93: Compressor Replacement

    ☐ Disconnect the 3 PTFE tubes from the compressor. After disconnecting the hoses and PTFE tubes, plug the ends to prevent contaminants from entering the system. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 94 Figure 73 — Remove compressor Do not remove the compressor pulley when reinstalling the compressor. ☐ Install the compressor in the reverse order. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 95 ☐ Lift the compressor up and away from the belt guard to remove it (Figure 74). Figure 74 — Remove compressor ☐ Install the compressor in the reverse order. Do not remove the compressor pulley when installing the compressor. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 96: Inlet Valve Replacement

    ☐ Ensure the O-ring is not defective or damaged. ☐ Install the inlet valve in the reverse order. Longer fasteners (×2) Viton O-ring Figure 75 — Inlet valve fasteners VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 97 ☐ Apply Loctite 425 (low strength adhesive) to the fan bolts. ☐ Install the new fan. ☐ Reconnect the fan electrical connector. ☐ Test the system. Figure 76 — Remove WHASP Fan VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 98 ☐ Apply Loctite 567 (thread sealant) to the new fan temperature switch and install it into the WHASP Tank cooler. ☐ Connect the fan temperature switch to the harness. Temperature switch Figure 77 — Fan temperature switch removal VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 99 WHASP Tank cooler. ☐ Connect the compressor temperature switch to the harness. ☐ Reinstall the WHASP Tank shroud. Temperature switch Figure 78 — Compressor temperature switch removal VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 100 ☐ Remove the (×4) fasteners from the bottom of the WHASP Tank mounting brackets. ☐ Remove the WHASP Tank. Figure 79 — Remove WHASP Tank ☐ Install the WHASP Tank in the reverse order. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 101: Generator Replacement

    Figure 80 — Remove throttle switch mount bracket fastener ☐ Remove the belt guard and generator rear cover (Figure 81). Remove (×14) belt guard fasteners Figure 81 — Remove belt guards VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 102 ☐ Taking note of the location for the star grounding washer, remove the rear generator fasteners (Figure 83). Grounding washer Figure 83 — Remove rear generator fasteners VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 103 Ensure the front generator fasteners are partially threaded into the generator prior to reinstallation. ☐ Install the generator in the reverse order. ☐ Compressor and generator belt routing (Figure 85). Figure 85 — Belt routing VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 104: Accessory Products From Vmac

    Compressor Service Kits 200 Hour or 6 Month Service Kit - Part number: A700219 Includes 4 L VMAC high performance compressor oil, oil filter, air filter, and next service due decal. 400 Hour or 1-Year Service Kit - Part number: A700220...
  • Page 105 Part number: A300047 Air receiver tanks are used for lowering compressor duty cycle and removing water from compressed air. Recommended for optimum operation of VMAC Hydraulic Air Compressors, VMAC Diesel Driven Air Compressors, UNDERHOOD40, UNDERHOOD70 – Green Series Air Compressors, and VMAC Multifunction Power Systems, which include standby mode;...
  • Page 106 1/2 in × 50 ft Hose Reel Part number: A700007 Spring-loaded 1/2 in × 50 ft hose reel; steel construction; full flow shaft and swivel for maximum performance. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 107: G300006 Illustrated Parts List (Ipl)

    ® G300006 Illustrated Parts List (IPL) www.vmacair.com...
  • Page 109 CLIP, 1/4 ID, ROUTING 1200998 BRACE, BOTTOM 1772019 HOSE, CRIMPED, 3/4” X 19” 1520583 BOLT, HHCS, FL, M6 X 1.0 X 20 1560516 NUT, M6 X 1.0 FL PL VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 110 ASSY, AC - GENERATOR, 100 V 3200627 SPACER, IDLER 1300043 IDLER, PULLEY, 4 RIB, STEEL 1520540 BOLT, HHCS, FLHD, M10 X 1.50 X 55 1201192 MOUNT, TENSIONER 1201193 ASSY, LIFTING, G30+GEN VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 111 LOOM, SPLIT PLASTIC, 1/4, HIGH TEMP *Items 54 – 55, 86 – 97 not shown in Figure 86 on page 110 or Figure 87 on page 111. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 112 Figure 86 — Kit pack list VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 113 Figure 87 — Kit pack list VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 114 CIR BRKR, 20A, PUSH-RESET 1.11 3501620 RCPT, 20A 250V, NEMA L14-20R 1.12 3501619 RCPT, 20A 125V, GFCI, NEMA 5-20R 1.13 3551176 AVR, REPLACEMENT, 9500757, 100V Figure 88 — Generator VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 115 This page intentionally left blank VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 116 ACCESSORY PACK, COVER, GEARLESS For systems equipped with the optional Cold Climate Kit (A500044 / A520004), the compressor includes a 200 W heater cartridge (not shown), P/N: 3550934. VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 117 Figure 89 — Compressor Assembly (P190004) VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 118 PLATE, INNER FILTER 3600037 ELEMENT, FILTER, PAPER 3600066 COVER, AIR FILTER, PLASTIC 5830070 O-RING, VITON, 2 9/16 ID X 3/32 Figure 90 — Inlet Valve Sub Components VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 119 4900236 FTG, 90, #4MORB-1/4”MNPT, VITON 3600166 FITTING, NIPPLE, FILTER 6000719 SHROUD, FAN, WHASP TANK 1500691 SCREW, SELF TAPPING, #10-16 X 1/2 3550958 FAN, PULLER, 7.5”, GT280 VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 120 BOLT, HHCS, M6 X 1.0 X 14 FL PL 1520570 BOLT,HHCS FL LK PL, M8 X 1.25 X 16 1570519 WASHER, EXT SERRATED LOCK, M8 *Item 32 includes O-ring. Figure 91 — WHASP Tank VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 121 Notes VMAC - Vehicle Mounted Air Compressors VMAC Technical Support: 888-241-2289 VMAC Knowledge Base: kb.vmacair.com...
  • Page 122: 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 124 Manufactured by ® 888-241-2289 tech@vmacair.com 877-740-3202 warranty@vmacair.com www.vmacair.com kb.vmacair.com 1333 Kipp Road, Nanaimo, B.C., V9X 1R3 Canada...

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