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Summary of Contents for Generac Power Systems MAC 750F
- Page 1 MAC 750F Flameless Air Heater Owner’s Manual MODEL NUMBER: _________________________ SERIAL NUMBER: _________________________ DATE PURCHASED:________________________ Register your Generac Mobile Product at: WWW.GENERACMOBILE.COM 800-926-9768 SAVE THIS MANUAL FOR FUTURE REFERENCE...
- Page 2 Owner’s Manual for Flameless Air Heater...
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Page 3: Table Of Contents
Table of Contents Section 1 Introduction and Safety Section 4 Maintenance Introduction ..............1 Maintenance Tasks ............13 Daily Walk Around Inspection ........13 Safety Rules ..............1 Check Engine Oil Level ..........13 General Hazards ............2 Drain the Oil ..............13 Explosion and Fire Hazards ........2 Adding Coolant ............14 Trailer Hazards .............2 Maintenance Schedule ..........14... - Page 4 This page intentionally left blank. Owner’s Manual for Flameless Air Heater...
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Page 5: Section 1 Introduction And Safety
The MAC 750F flameless air heater is designed and built for sustained, reliable heat production in industrial operating conditions and environments. The MAC 750F is built to withstand frequent handling under these conditions. -
Page 6: General Hazards
Introduction and Safety General Hazards Explosion and Fire Hazards Trailer Hazards Owner’s Manual for Flameless Air Heater... -
Page 7: Battery Hazards
Introduction and Safety Battery Hazards Owner’s Manual for Flameless Air Heater... - Page 8 Introduction and Safety This page intentionally left blank. Owner’s Manual for Flameless Air Heater...
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Page 9: Section 2 General Information
General Information Section 2 General Information Component Locations 001574 001575 Left Side Right Side Figure 2-1. Features and Controls Table 1 - Heater Components Engine radiator Controller Breakaway battery for trailer brakes Manual compartment Diesel engine Diesel engine turbo charger Hydraulic fluid filters Diesel engine oil dipstick Hydraulic fluid fill... -
Page 10: Engine Oil Recommendations
General Information Engine Oil Recommendations Fuel System Genuine Generac parts are recommended for all maintenance items. Generac oil kits include both the oil filter and air filter, and can be obtained through any IASD. All Generac oil kits meet minimum American Petroleum Institute (API) Service Class CJ-4/SM. -
Page 11: Wheel Chock Guidelines
General Information Informational Decals Driving a vehicle with a trailer in tow is vastly different than driving the same vehicle without a trailer in tow. Consider the following: Location Decal Description • It takes longer to get up to speed. -Tire and loading information •... -
Page 12: Monitoring, Diagnostic, And Protective Features
General Information Monitoring, Diagnostic, and Protective Features The unit mechanical and electrical systems are connected to various sensors that monitor unit status. If conditions occur outside of predetermined manufacturing parameters, the controller will automatically stop the machine and display fault information. The controller can also display a variety of critical alerts, diagnostics, and recommendations. -
Page 13: Section 3 Operation
Operation Section 3 Operation Before Starting Engine Engine Coolant Check Pre-start Checklist Remove radiator fill cap. Check coolant level and degrees of fouling. • Coolant level should be approximately 10 mm • Remove all flammable materials and fire hazards below the radiator core top within 5 feet of heater Install radiator cap securely. -
Page 14: Engine And Heater Startup
Operation Engine and Heater Startup Close all doors that access the unit’s interior. Engine Warming -- IMPORTANT NOTE: All doors on the unit must be Please Wait closed during operation. Turn ignition key to ON. The screen displays “Engine Preheat” (Figure 3-1). -
Page 15: Adjusting Heater Output
Operation Adjusting Heater Output Heater and Engine Shutdown The heater has two modes, AUTO and MANUAL. The Press OFF to stop the heater (Figure 3-7, item C). current mode displays at the top of the controller screen. The screen displays “Heater is cooling down-- Please wait”... - Page 16 Operation This page intentionally left blank. Owner’s Manual for Flameless Air Heater...
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Page 17: Section 4 Maintenance
Maintenance Section 4 Maintenance NOTE: Normal maintenance service and replacement of After ten seconds, remove the dipstick and look at parts is the responsibility of the owner and, as such, are the oil level on both sides. The lower of the two not considered defects in materials or workmanship readings will be the correct oil level measurement. -
Page 18: Adding Coolant
Maintenance Maintenance Schedule Adding Coolant Periodic inspection, service, and maintenance of this unit is critical to ensure reliable operation. The following is the manufacturer’s recommended maintenance schedule. The maintenance items will need to be performed more frequently if the heater is used in severe applications (such as very high or very low ambient conditions or extremely dirty/dusty environments). -
Page 19: Engine Maintenance Schedule
Maintenance Engine Maintenance Schedule • Check engine oil level • Inspect engine for fuel, oil and coolant leaks • Check oil pressure gauge registration • Check oil pressure warning lamp • Drain water in fuel filter • Check coolant for abnormal color •... -
Page 20: Battery Inspection
Maintenance NOTE: For items marked (*), consult equipment supplier. NOTE: All service and maintenance or repairs are recommended to be completed by an IASD to maintain the warranty status of a unit. You cannot be denied emissions warranty coverage solely based on failure to complete recommended service maintenance. -
Page 21: Battery Installation And Replacement
Maintenance Battery Installation and Replacement When required, the battery must be replaced with one of equivalent size, voltage, and CCA (cold crank amp capacity). Minimum CCA for this unit is 2200 (2 pairs of 2 1100 CCA 12 volt batteries in series to give 1100 Amps at 24 volts. - Page 22 Maintenance This page intentionally left blank. Owner’s Manual for Flameless Air Heater...
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Page 23: Section 5 Troubleshooting
Troubleshooting Section 5 Troubleshooting General Troubleshooting Guide Problem Cause Solution Verify there is no fuel leakage and No fuel. replenish. Low oil level. Replenish oil to full. Turn emergency shutdown switch Emergency shutdown switch is ON. OFF. Air in fuel system. Bleed air. - Page 24 Troubleshooting Problem Cause Solution Needs more warm-up time. Conduct warm-up operation. Too much engine oil. Correct oil level. Engine control system fails. Contact Generac Technical Exhaust Smoke is White Injection pump failure. Service. Fuel system failure. Keep stopping the equipment and Long time idling (more than two hours).
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Page 25: Digital Controller Status Messages
Troubleshooting Problem Cause Solution Incorrect heater setting (target tempera- Adjust heater output ture too low) Access doors are open Close all access doors • Check level on tank sight glass, adjust as needed Low HTF/hydraulic oil level • Inspect HTF hoses for leaks or loose fittings No/low heat condition •... - Page 26 Troubleshooting Message Cause High hydraulic temperature Heater Shutdown due to temperature, pressure Low hydraulic pressure or level out of range Low hydraulic level Fuel temperature >= 140° F Open heat circuit solenoid Increase scroll fan RPM to max RPM via fan circuit sole- noid and drop engine to idle Monitor fuel temperature for five minutes Fuel Over temp.
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Page 27: Section 6 Installation Diagrams And Service Log
Installation Diagrams and Service Log Section 6 Installation Diagrams and Service Log Engine Harness (1 of 3) Owner’s Manual for Flameless Air Heater... -
Page 28: Engine Harness (2 Of 3)
Installation Diagrams and Service Log Engine Harness (2 of 3) Owner’s Manual for Flameless Air Heater... -
Page 29: Engine Harness (3 Of 3)
Installation Diagrams and Service Log Engine Harness (3 of 3) Owner’s Manual for Flameless Air Heater... -
Page 30: Trailer Wiring Harness
Installation Diagrams and Service Log Trailer Wiring Harness Owner’s Manual for Flameless Air Heater... -
Page 31: Service Log
Installation Diagrams and Service Log Service Log OIL GRADE: _____________________________________ BRAND: __________________________________ COOLANT MIXTURE: _____________________________ BRAND: __________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ Hours to Coolant Hours to Coolant Date Oil Level Date Oil Level Service Level Service Level Owner’s Manual for Flameless Air Heater... - Page 32 Part No. 3022147 Rev. A 10/29/15 Printed in USA Generac Mobile Products © Generac Mobile Products. All rights reserved 215 Power Drive Specifications are subject to change without notice. Berlin, WI 54923-2420 No reproduction allowed in any form without prior written 800-926-9768 consent from Generac Mobile Products.
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