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Generac Mobile MFH900, Owner'S Manual

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Generac Mobile MFH900 Owner'S Manual Download Page 39

Owner’s Manual for Flameless Air Heater

35

Troubleshooting

Hydraulic Oil 
Temperature

Steady ON (amber)

Tank >160 °F (71 °C) or oil stream >200 °F (93 °C)

Steady ON (red)

Tank >170 °F (77 °C) or oil stream >210 °F (99 °C)

Steady ON

High-temperature cut-out switch open

Hydraulic Return Filter

Filter condition

Engine Overspeed

Steady ON

Engine rpm exceeds set parameter in EPEC ECU for 
overspeed, or the engine ECU transmits the overspeed 
indication
Remains ON until engine cycles through a stopped state
Setpoint: 2,600 rpm

Low Diesel Fuel

Steady ON (amber)

Fuel level is 20%

Slow flash (red)

Fuel level is 16%

Fast flash (red)

Fuel level is 12% or below

Control System Fault

Steady ON

Any control system fault

Delayed Engine 
Shutdown

Steady ON

DPF outlet temperature is above a set temperature 
threshold

Steady ON (amber) 
and 
Steady ON—Engine 
Cooling lamp

Engine is cooling

Battery Charge

Steady ON

Battery voltage is below 25 V with engine in RUN

Engine Coolant 
Temperature

Steady ON (amber)

Coolant level is above 228 °F (109 °C)

Water In Fuel

Steady ON

Water detected in fuel

Service Due

Steady ON

Service is due for one or more of:

•

Engine oil

•

Air filter

•

Engine fuel filter

•

Hydraulic oil filters

See 

Draining Fluids—Union Fluid Drain

.

Summary of Contents for MFH900

Page 1: ...SAVE THIS MANUAL FOR FUTURE REFERENCE MFH900 Flameless Air Heater Owner s Manual For technical assistance contact www generacmobileproducts com Technical Support 1 800 926 9768 ...

Page 2: ...d periodically by a GMASD Normal maintenance service and replacement of parts are the responsibility of the owner operator and as such are not considered defects in materials or workmanship within the terms of the war ranty Individual operating habits and usage may contrib ute to the need for additional maintenance or service Unit Model No Unit Serial No Engine Model No Engine Serial No Generator ...

Page 3: ... Advanced Controller Functions 19 Section 3 Operation Before Starting Engine 21 Pre start Checklist 21 Engine Oil Check 21 Hydraulic Oil Check 21 Engine Coolant Check 21 Battery Check 21 Starting Engine and Heater 22 Adjusting Air Output Temperature 22 Adjusting Heater CFM 22 Changing Controller Mode 23 Shutting Down Engine and Heater 23 Emergency Stop Switch 23 Battery Disconnect Switch 23 Before...

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Page 5: ...his machine Safety Rules The manufacturer cannot anticipate every possible cir cumstance that might involve a hazard The alerts in this manual and on tags and decals affixed to the unit are not all inclusive If using a procedure work method or operating technique that the manufacturer does not spe cifically recommend verify that it is safe for others and does not render the equipment unsafe Throug...

Page 6: ... to unit CAUTION 000240a Unit damage Do not stop engine before heating unit is cooled Doing so could result in unit damage CAUTION 000246b Equipment Damage The emergency stop switch is not to be used to power down the unit under normal operating circumstances Doing so could result in equipment damage 000105 DANGER Explosion and Fire Fuel and vapors are extremely flammable and explosive Add fuel in...

Page 7: ...s Failure to do so could result in death serious injury property or equipment damage 000235 WARNING Rollover hazard Unit must be placed on flat level ground to prevent tipping or rollover Failure to do so could result in death serious injury or property or equipment damage 000283 WARNING Property or equipment damage Do not alter the trailer Alterations can damage essential safety items Doing so co...

Page 8: ...ing the unit Maximum recommended speed for highway towing is 45 mph 72 km h Recommended off road tow ing speed is 10 mph 16 km h or less depending on terrain When towing maintain extra space between vehi cles and avoid soft shoulders curbs and sudden lane changes Reduce speed before curves and maintain speed throughout the curve Reduce speed before going over bumps or holes Keep your foot off the ...

Page 9: ...m gal L 14 53 20 6 77 9 L Coolant gal L 4 8 18 Oil qt L 10 3 9 75 Heater Type Flameless self contained Maximum Heat Produced BTU hr kW hr 875 000 256 44 Air Output Temperature Range F C 120 180 48 9 82 2 Air Output Volume ft3 min m3 min 3 500 5 000 99 1 141 6 Air Ducts qty diameter Two 12 in 30 5 cm Estimated Efficiency 85 HTF Pump type Variable displacement piston pump Trailer Brakes Type Electri...

Page 10: ...UE SEULEMENT 209649 Form SFC626B Manufactured by Generac Mobile Products LLC 920 361 4442 800 926 9768 VIN Tag TIRE AND LOADING INFORMATION RENSEIGNEMENTS SUR LES PNEUS ET LE CHARGEMENT SEE OWNER S MANUAL FOR ADDITIONAL INFORMATION VOIR LE MANUEL DE L USAGER POUR PLUS DE RENSEIGNEMENTS MANUFACTURED BY FABRIQUE PAR Generac Mobile Products LLC DATE 00 0000 GVWR PNBV 000KG 0000LBS COLD INF PRESS PRES...

Page 11: ...erior Components A Roof beacon G Fuel fill B Radiator fill access panel H Tie down 4 locations C Air intake I Forklift pocket 4 locations D Exhaust J DEF fill E Control panel K Battery for breakaway brakes F Emergency stop switch L Union fluid drain port M Hot air discharge ducts A G D F H J K I L M B C E ...

Page 12: ...Engine oil filter D Fuel lift pump O Engine oil ball valve E Heat transfer fluid HTF or hydraulic fluid reservoir P Engine oil fill F HTF fill point and breather Q DEF pump G HTF level switch R DEF pump filter under cap H HTF high temperature switch S Coolant overflow tank I HTF thermistor T Clog sensor for HTF filters J HTF filter 2 locations U Perkins ECU engine diagnostic port K Inline fuel fil...

Page 13: ...er B Intake air filter H Ground strip on floor C Engine radiator I Fuse block next to ground strip D Union drain manifold through hole in floor ball valves for DEF coolant and fuel J Battery disconnect switch E Positive air shutdown PAS K Hydraulic manifold behind shield F Battery 2 locations L Series turbocharger behind shield 000000 B A D E F G H I C J L K ...

Page 14: ...r s Manual for Flameless Air Heater General Information Control Panel Figure 2 6 Control Panel A Controller B Unit start switch C Main power switch D Light switch E Emergency stop switch F USB port E C A B D F ...

Page 15: ... adjustment See Figure 2 8 On most pages an icon displays next to each button A Each icon indicates what navigation or adjustment occurs when the corresponding button is pushed Figure 2 8 Home Page More information is provided throughout this manual B Screen C Faceplate icon four D Knob Navigates selection on current page Twist knob Scroll Push knob Select E Go to Home page F not used G Go to prev...

Page 16: ... Indicated Condition Engine At Work Speed Steady ON green Engine is at desired work speed or higher about 2 200 rpm or higher Engine At Idle Steady ON green Engine is at idle rpm about 800 rpm or lower Wait to Start Steady ON Glow plugs are ON engine is preheating Engine Heating Steady ON amber Engine is heating coolant to a minimum temperature Engine Cooling Steady ON blue Engine ECU indicates en...

Page 17: ...s See Figure 2 6 Four icons are stamped into the controller faceplate They illuminate according to situation Figure 2 10 Faceplate Icons Icon Lit Indicates Photo sensor for controller display day or night mode When lit green controller power is ON When lit USB cable is connected not used A ...

Page 18: ...Ethylene glycol base antifreeze water mix is recommended Never exceed a 60 40 antifreeze water mix NOTE Recommended coolant is ZEREX Nitrate Free Extended Life Antifreeze Coolant See Specifications for coolant capacity For more information see the engine manual Fuel System The heater is designed to operate with diesel fuel See Specifications for fuel tank capacity IMPORTANT NOTE Comply with all la...

Page 19: ...ion of grade Chock both sides of wheel if direction of grade is unknown Use wheel chock only after parking brake is applied and tested Center chocks squarely against tread of each wheel Do not drive over wheel chocks Rooftop Beacon See Figure 2 3 The unit is equipped with a rooftop beacon The beacon indicates the following Home Page Default Operator Display See Figure 2 13 The Home page is the def...

Page 20: ...AUTO Mode In AUTO Mode three temperatures are available At each temperature three airflow volumes are available See table below AUTO Mode Navigation Figure 2 16 AUTO Mode Home Page About MANUAL Mode In MANUAL mode temperature is adjustable by single degrees F and blower speed is adjustable by single CFM See Specifications for ranges MANUAL mode provides advanced access to maintain diagnose and tro...

Page 21: ...on refer to the controller wir ing diagrams Accessing Engine Diagnostics Page This procedure accesses MANUAL mode A password is required for this procedure 1 See Figure 2 19 Access a page displaying the Diagnostics icon A Figure 2 19 Accessing Engine Diagnostics 2 Press the Diagnostics button B 3 See Figure 2 20 The Password Prompt page dis plays Press the Diagnostics button A Figure 2 20 Password...

Page 22: ... Controller Brightness Contrast B Press the Controller Brightness Contrast button B to access controller display preferences Faults C Press the Faults button C to access fault codes and alerts See Figure 2 23 The Enter Password page displays Figure 2 23 Enter Password Page 5 Enter the password See Figure 2 24 The Faults page displays Figure 2 24 Faults Page NOTE For more information see Troublesho...

Page 23: ...Page 1 of 2 2 Choose a function or setting Hydraulic System Information The Hydraulic System Information page displays hydraulic system data HTF temperature HTF pressure and electrical current To access 1 From the Home page 1 of 2 press the Hydraulic System Information button A Figure 2 28 Hydraulic System Information Button See Figure 2 28 The Hydraulic System Information page 1 of 2 displays Fig...

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Page 25: ...Check coolant level and degree of fouling NOTE Coolant level should be approximately 0 4 in 10 2 mm below the radiator core top 3 Install radiator cap securely Battery Check 1 Verify battery cable connections are not loose or corroded 000108 WARNING Hot Surfaces When operating machine do not touch hot surfaces Keep machine away from combustibles during use Hot surfaces could result in severe burns...

Page 26: ...oth to MANUAL and AUTO modes 1 Verify unit is fully operational controller must display Heater Run 2 See Figure 3 4 Adjust temperature by pressing Increase A or Decrease B Figure 3 4 Air Output Temperature Adjustment In AUTO mode choose one of three temperatures 120 150 or 180 F In MANUAL mode choose any output temperature between 120 and 180 F Adjusting Heater CFM This section applies both to MAN...

Page 27: ...ge cycle could last up to 10 minutes Emergency Stop Switch See Figure 3 8 The unit is equipped with one emergency stop switch The red button is clearly labeled EMERGENCY STOP The switch can be accessed and activated with all doors closed and locked Figure 3 8 Emergency Stop Switch Activate the emergency stop switch by pushing the button in until it locks down This trips the main circuit breaker wh...

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Page 29: ...t pulleys and bearing Rotate and feel for hard turning or unusual sounds Check coolant Check electrical connectors battery and ground points Look for loose or missing hardware Check all flexible rubber hoses for deterioration Check hydraulic hoses for signs of wear Verify hoses are not crushed kinked or twisted Verify there are no cracks or corrosion Checking Engine Oil Level NOTE If engine was ru...

Page 30: ...nformation Adding Coolant If coolant level is below the filler neck coolant needs to be added see Coolant Recommendation 1 Verify engine is stopped and cooled A Union fluid drain exterior drain port B Ball valve engine oil C Ball valve hydraulic oil D Three ball valves DEF coolant and fuel see hole in floor B A D C 000139 WARNING Risk of burns Allow engine to cool before draining oil or coolant Fa...

Page 31: ...utes at a low idle speed to bleed the air in the coolant circuit NOTE Coolant level will drop 5 Stop the engine and once cooled replenish with coolant Removing Crankcase Filter To remove crankcase filter unscrew top and lift vertically NOTE Removal may be difficult due to suction See engine manual for more information Engine Diagnostic Port and ECM Engine Control Module See engine manual ...

Page 32: ...his unit Engine Maintenance Schedule For procedures see the OEM engine manual Daily Check coolant level Check driven equipment Inspect engine air cleaner service indicator Check clean engine air precleaner Check engine oil level Drain fuel system primary filter water separator Walk around inspection Weekly Inspect replace hoses and clamps Every 50 hr or weekly Drain fuel tank water and sediment Ev...

Page 33: ...ilters Accessing and Resetting Controller Service Intervals After changing the oil air filter engine fuel filter or hydraulic oil filters the appropriate interval MUST BE RESET ON THE CONTROLLER in order to continue providing accurate data Engine Oil Fuel Filter and Air Filter 1 See Figure 4 3 On the Service Alerts page press the Diagnostics button A Figure 4 3 Service Alerts Page 2 See Figure 4 4...

Page 34: ...e Figure 4 6 The Service Hours Hydraulics page displays Figure 4 6 Service Hours Hydraulics Page Here you can View service intervals View hours remaining until next scheduled service Press the RESET button to reset the HRs REMAIN for hydraulic oil A Other Maintenance Checks The following inspections should be performed by an authorized service technician or a properly trained authorized operator T...

Page 35: ...pes with hot water or wait until ambient temperature rises Injection pump failure Contact an IASD Electromagnetic type fuel pump failure Engine control system failure Restricted air flow Check replace air filter LCD panel shows engine failure Contact an IASD Clogged strainer Pre heating device fail ure Engine does not crank Discharged battery Replace battery Battery terminal is dis connected loose...

Page 36: ...cessive engine oil Correct oil level Engine control system failure Contact an IASD Injection pump failure Fuel system failure Exhaust smoke is black Excessive speed Verify engine RPM Check AVR adjustment Injection pump failure Contact an IASD Clogged air cleaner Clean or change element Clogged intercooler Contact an IASD Fuel system failure Clogged exhaust sys tem Engine overheats No coolant Add c...

Page 37: ...ducting Front radiator or rear oil cooler are full of debris Clean the machine Engine rpm is set too high based on ambient temperature Lower the engine rpm Faulty temperature sen sor Check air outlet sensor operation Blower fan not operat ing correctly Remove ducting check blower fan operation No low heat condi tion Incorrect heater setting target temperature too low Adjust heater output Access do...

Page 38: ...e engine ECU is requesting high idle typically 1 200 rpm Control system has granted permission for high idle state Typical when DPF is above 80 soot load DEF Fluid Level Steady ON amber DEF fluid level is 20 Slow flash red DEF fluid level is 16 or below Engine Emissions Malfunction Steady ON or Slow flash or Fast flash Indicates failure of a critical emissions component Engine derate Steady ON 0 S...

Page 39: ...m Low Diesel Fuel Steady ON amber Fuel level is 20 Slow flash red Fuel level is 16 Fast flash red Fuel level is 12 or below Control System Fault Steady ON Any control system fault Delayed Engine Shutdown Steady ON DPF outlet temperature is above a set temperature threshold Steady ON amber and Steady ON Engine Cooling lamp Engine is cooling Battery Charge Steady ON Battery voltage is below 25 V wit...

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Page 41: ...Owner s Manual for Flameless Air Heater 37 Section 6 Wiring Diagrams Main Control System ...

Page 42: ...38 Owner s Manual for Flameless Air Heater Wiring Diagrams Perkins Engine Aftertreatment GROUP G ...

Page 43: ...Owner s Manual for Flameless Air Heater 39 Wiring Diagrams J1939 CAN Bus Network J1939 CANBUS NETWORK DIAGRAM GROUP G ...

Page 44: ...40 Owner s Manual for Flameless Air Heater Wiring Diagrams Trailer Harness Electric Brakes GROUP G ...

Page 45: ...Owner s Manual for Flameless Air Heater 41 Wiring Diagrams Trailer Harness Lights Only or With Surge Brakes GROUP G ...

Page 46: ...42 Owner s Manual for Flameless Air Heater Wiring Diagrams ...

Page 47: ... 4 RETURN HOSE 1 000 PSI MAX FILTER HARD PLUMBED TO TANK 3 8 FAN MOTOR CASE DRAIN HOSE 1 000 PSI MAX 40 HOSE BARB 40 2 1 2 CODE 61 SAE FLANGE 20 1 1 4 CODE 62 SAE FLANGE 12 SAE 12 SAE 6 SAE 8 SAE 6 SAE 8 NPT 8 NPT 12 TO 8 SAE 12 TO 8 SAE 6 SAE 16 TO 20 SAE 16 TO 20 SAE 24 SAE PORT A PORT B P 20 T 20 G2 4 DR 6 G1 6 8 M1 4 G3 8 M2 TS2 VC08 2 CV2 VC10 2 EV1 HVC16 S3 TEMP 6 CV1 VC10 2 SP1 HVC10 3 24 S...

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Page 51: ......

Page 52: ...ights reserved Specifications are subject to change without notice No reproduction allowed in any form without prior written consent from Generac Mobile Products LLC Generac Mobile Products LLC 215 Power Drive Berlin WI 54923 GeneracMobileProducts com 800 926 9768 920 361 4442 ...

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