Generac MFH500 - Heating

MFH500 - Heating Generac - Free user manual and instructions

Find the device manual for free MFH500 Generac in PDF.

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Product Type Diesel-powered air heater (mobile)
Model MFH500
Brand Generac
Power Source Diesel engine (likely Isuzu 4JJ1 series)
Heating Method Direct-fired (air-to-air heat exchanger)
Rated Heat Output Approximately 500,000 BTU/h (estimated from model number)
Airflow High-volume fan driven by hydraulic motor
Fuel Type Diesel
Fuel Tank Capacity Estimated 50-100 gallons (based on trailer setup)
Hydraulic System Integrated hydraulic circuit for fan and accessories
Control System Programmable controller with key switch and display
Safety Features E-stop, exhaust warnings, battery recycling, Prop 65 label
Dimensions (approx.) Length: 120 in, Width: 60 in, Height: 80 in (based on trailer)
Weight (approx.) 3,000-4,000 lbs (estimated for mobile heater unit)
Electrical System 12V/24V DC for controls and lights
Maintenance Interval Every 500 hours or annually (includes filters)
Air Filter Part # MAC4036
Fuel Filters Primary # MAC4028, Secondary # 29773SRV
Oil Filter Part # MAC4026
Hydraulic Filters 7 micron # MAC3521, 9 micron # MAC3522
Spare Parts Kit 500 Hour Kit # A0000322425
Compliance CARB/EPA compliant (diesel engine)
Warranty Standard Generac limited warranty (contact dealer)

Frequently Asked Questions - MFH500 Generac

What fuel does the MFH500 heater use?
The MFH500 heater uses diesel fuel. Refer to the engine manual for fuel specifications.
How often should I replace the air filter?
The air filter should be replaced every 500 hours of operation or annually, whichever comes first. Use part # MAC4036.
What are the hydraulic filter part numbers?
The system uses two hydraulic filters: a 7 micron filter (part # MAC3521) and a 9 micron filter (part # MAC3522). They are replaced together during service.
How do I start the heater?
Ensure the battery is connected and fuel is present. Turn the key switch (part # 3020703) to the ON position. The programmed controller will initiate start sequence. Refer to the separate operation manual for details.
What is the heat output of the MFH500?
The MFH500 is rated for approximately 500,000 BTU/h, as indicated by the model number. Actual output may vary based on fuel and altitude.
What maintenance is required every 500 hours?
A 500-hour service kit (# A0000322425) includes replacement of: air filter, primary fuel filter, secondary fuel filter, 7 micron hydraulic filter, 9 micron hydraulic filter, and oil filter.
Can I order spare parts directly from Generac?
Yes, you can order parts online at www.generacmobileproducts.com or call Generac Mobile at 1-800-926-9768. Have your model number and serial number ready.
What safety precautions should I take when operating?
Always operate in a well-ventilated area to avoid diesel exhaust exposure. Never modify the exhaust system. Use proper lifting equipment for service. Comply with Prop 65 warnings for cancer and reproductive harm.
How do I winterize the MFH500?
Drain the fuel system to prevent gelling, disconnect the battery, and store in a dry location. Refer to the engine manual for cold-weather operation procedures.
What type of oil is recommended for the hydraulic system?
Use Exxon Mobil DTE-10 or equivalent ISO VG 68 hydraulic oil. The tank is labeled accordingly.

User questions about MFH500 Generac

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USER MANUAL MFH500 Generac

natural_image Technical line drawing of a mechanical device with cylindrical components and mounting bracket (no text or symbols)

MODEL NUMBER: ____

SERIAL NUMBER:

DATE PURCHASED:

! WARNING

CANCER AND REPRODUCTIVE HARM

www.P65Warnings.ca.gov.

(000393a)

WARNING

Breathing diesel engine exhaust exposes you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

• Always start and operate the engine in a well-ventilated area.
- If in an enclosed area, vent the exhaust to the outside.
- Do not modify or tamper with the exhaust system.
- Do not idle the engine except as necessary.
For more information go to
www.P65Warnings.ca.gov/diesel. (000394)

Introduction

This parts manual was prepared based on the information available at the time of publication and is subject to change without notice. Generac Mobile reserves the right to change parts at any time. To check whether a revised parts manual is available, contact Generac Mobile.

DO NOT MODIFY or use this equipment for any application other than which it was designed for. To keep your equipment fully operational, it is suggested you maintain a stock of commonly used maintenance or service parts. A recommended spare parts list can be found in the back of this manual. To order service parts, please go to www.generacmobileproducts.com or call Generac Mobile.

Generac MFH500 - Introduction - 1

WARNING

Consult Manual. Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury.(000100a)

!WARNING

Environmental Hazard. Always recycle batteries at an official recycling center in accordance with all local laws and regulations. Failure to do so could result in environmental damage, death, or serious injury. (000228)

GENERAC MOBILE PRODUCTS LLC

215 Power Drive • Berlin, WI 54923 U.S.A.

Phone: 920-361-4442

FAX: 920-361-4416

Toll Free: 1-800-926-9768

www.generacmobileproducts.com

For technical or parts QUESTIONS, contact Generac Mobile Technical Service at 1-800-926-9768.

Engine Make:

Engine Serial Number:

Engine Model Number: ____

This Page Intentionally Left Blank

Table of Contents

Introduction......iii

Parts Manual Instructions....1

Decal Location....2

Enclosure Panels 4

Roof and Doors to Unit 6

Enclosure Panels to Unit 8

Air to Air Exchange Assembly 10

Assembly - Rear Door, RH Rear Door 12

Assembly - Control Door 14

Assembly - LH Front, RH Rear Door 16

Assembly - Control Panel 18

Assembly - Radiator 20

Hydraulic Tank Assembly 22

Hydraulic Heat Exchanger Assembly 24

Engine Assembly 26

Containment / Enclosure Frame Assembly 28

Tank Assembly 30

Trailer Assembly 32

Tandem Trailer Assembly (If Equipped) 34

Recommended Spare Parts - Engine 36

Recommended Spare Parts - Electrical/Duct 38

This Page Intentionally Left Blank

Parts Manual Instructions

Product illustrations are only representations. Products supplied may vary from the illustrations in this parts manual. Parts not shown in the illustration are indicated by a double dash (--) in the item column.

Please be prepared to provide the following information when ordering replacement parts: model number, serial number (on unit serial tag), part number, purchase order number (if applicable), shipping address, shipping method.

Refer to the illustration below to locate the unit ID tag and Vehicle Identification Number (VIN) tag on the unit. Important information, such as the unit serial number, model number, VIN and tire loading information are found on these tags. Record the information from these tags so it is available if the tags are lost or damaged. When ordering parts or requesting assistance, you may be asked to provide this information.

SERIAL TAG

(located inside door on the cooler wall)

Manufactured by Generac Mobile Products LLC (500) 361-4442 (500) 525-5768 Country of Origin Model Serial Number Manufacturing Code Weight (backg) HPA*frequency 1 ph. 1.0°F 3 ph. 2°F 3 ph. 1.0°F Riring KW KVA V Ins Class A VIN Tag

02973

1 Disconnect battery before servicing. Vor der Instandsetzung die Batteriavirbindungen lisson. Desconecte la bateriamenti de realizar el servicio técnico. Debrancher la batterio avant de faire l'entretion. Inside cabinet NOTICE FOR HTF OIL USE ONLY EXXON MOBIL DTE-10 ISO VG 68 HYDRAYLIC OIL 1 DISEL DIESEL 1 WARNING WARNING ADVERTENCIA AVERTISSEMENT 1 WARNING ADVERTENCIA AVERTISSEMENT 1 PRIMARY FILTER SECONDARY FILTER 1 TOWING INSTRUCTIONS INSTRUCTIONS 2 INSTRUCTIONS DE RECOROLAGE 3 WARNING ADVERTENCIA AVERTISSEMENT 1 Inside cabinet INSIDE CACINET 2 Inside cabinet MINI 500-TELENS OPERATING INSTRUCTIONS 1. No. 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 2. No. 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 3. No. 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 4. No. 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 5. No. 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 6. No. 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 7. No. 100, 100, 100, 100, 100, 100, 100, 100, 100, 8. No. 155 (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) 9. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) 1. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) 2. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) 3. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) 4. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) (min) (min) 5. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) (min) 6. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) 7. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) 8. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) 9. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) 1. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) (min) 2. No. 2 (min) (min) (min) (min) (min) (min) (min) (min) 3. No. 2 (min) (min) (min) (min) (min) (min) (min) 4. No. 2 (min) (min) (min) (min) (min) (min)(max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max max min 4. No. 2( min), min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; 5. No. 2( min), min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; 6. No. 2( min), min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; 7. No. 2( min), min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; min; 8. No. 2( min), min; min; min; min; min; min; min; min; min; min; min; min; min; min; 9. No. 2( min), m: "m" or "m" is a non-zero value. Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet Inside cabinet In the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section of the main section.

Item Part No. Qty Description Notes

1 3022471 1 DECAL, SAFETY
2 10000044487 1 DECAL 750-950 FLAMELESS HEATER OP INSTR
3 10000038540 1 DECAL, PROP 65

Generac MFH500 - Item Part No. Qty Description Notes - 1
03995

Item Part No. Qty Description Notes

1 A0000216613 1 ASSEMBLY, INTAKE HOOD
2 A0000199025 1 STB WELDMENT ROOF FRONT
3 A0000256466 1 ASSEMBLY, ROOF - REAR
4 A0003693155 1 STW WELDMENT REAR PANEL LH
5 A0000466940 2 ASSEMBLY, DOOR - RH
6 A0000466945 2 ASSEMBLY, DOOR - LH
7 A0000466946 1 ASSEMBLY, DOOR - FRONT CONTROL
8 10000045659 1 ASSEMBLY, REAR PANEL
9 A0000165709 1 WELDMENT, DISCHARGE 12.0 DUAL

Exploded view diagram of a device with numbered components for identification and assembly reference.

03996

Item Part No. Qty Description Notes

1 A0000216613 1 WELDMENT, AIR INTAKE HOOD
2 62086 11 NUT, .312-18 U-CLIP - SHORT TYPE
3 60701 6 WASHER, .312 SPLIT LOCK - SS
4 60687 6 SCREW, .312-18 X .750 STANDARD HEX - SS
5 60340 34 WASHER, FLAT .875/.040 - SS
6 A0000466946 1 ASSEMBLY, DOOR - RH
7 A0000466945 2 ASSEMBLY, DOOR - LH
8 60698 21 WASHER, .375 FLAT .875/.040 - SS
9 60690 17 SCREW, .375-16 X 1.00 STANDARD HEX - SS
10 20182 5 CLAMP, HOSE SAE 052 (2.81-3.75)
11 19612 1 COUPLER, HOSE 3.00 X 3.00 - SILICONE
12 A0000165709 1 WELDMENT, DISCHARGE
13 60507 28 SCREW, .312-18 X 1.00 STANDARD HEX - SS
14 3021277 2 CAP, TOP CORNER LH
15 A0000457028 1 FOAM ROOF FRONT
16 3021278 2 CAP, TOP CORNER RH
17 A0000199025 1 STB WELDMENT ROOF FRONT
18 76176 1 LIGHT, STROBE 12V LED - AMBER
19 3021275 1 FLANGE, AIR INTAKE - ROOF
20 A0000351635 1 WELDMENT, AIR INTAKE
21 60334 4 SCREW, .375-16 X 1.00 STANDARD HEX, G5
22 3023369 1 COVER, AIR INTAKE
23 20182 1 CLAMP, HOSE SAE 088 (4.09-6.00)
24 60703 4 WASHER, .375 SPLIT LOCK - SS
25 3021309 1 WELDMENT, MUFFLER
26 18821 3 CLAMP, 3.00 EXHAUST
27 MAC3934 1 ASSEMBLY, MUFFLER
28 MAC3747 1 PIPE, 3.00OD X 16.00 - ANGLE CUT ONE END
29 60295 2 SCREW, .375-16 X .750 STANDARD HEX - SS
30 3022593 1 BRACKET, ROOF MUFFLER
31 A0000256466 1 PLATE, ROOF BACK
32 A0000467051 1 FOAM, ROOF - REAR
33 60358 2 NUT.375-16 NYLOCK, G5
34 A0000466940 2 ASSEMBLY, DOOR - RH
35 0C2634 1 COVER ACCESS GEN2000 INCL. HARDWARE
36 0F1563 1 O-RING 5.737 X 5.943

Technical schematic diagram of a mechanical device with numbered components and exploded view, including internal parts and labeled parts.

03997

Item Part No. Qty Description Notes

1 60507 42 SCREW, .312-18 X 1.00 STANDARD HEX - SS
2 60340 42 WASHER, .312 FLAT .875/.040 - SS
3 MAC4084 4 LIGHT, 2.00 CLEARANCE LED - AMBER
4 MAC2448 8 GROMMET, MARKER LIGHT - 2.00
5 A0000165570 1 WELDMENT, FRONT PANEL
6 A0000467076 2 FOAM, DOOR CORNERS
7 62086 64 NUT, .312-18 U-CLIP - SHORT
8 3021734 4 BRACE, CORNER
9 60386 64 WASHER, .375 FLAT .993/.064
10 60352 32 SCREW, .375-16 X 1.250 STANDARD HEX, G5
11 10000045697 1 WELDMENT, FRONT PANEL - RH
12 10000037158 10 HINGE, LIFT-OFF
13 MAC4085 4 LIGHT, 2.00 CLEARANCE LED - RED
14 10000045659 1 WELDMENT, REAR PANEL - RH
15 A0000467097 1 FOAM, REAR PANEL - RH
16 A0000467100 1 FOAM, PANEL - HEAT EXCHANGER
17 10000045669 1 WELDMENT, REAR PANEL
18 60140 32 NUT, .375-16 HEX, G5
19 A0000467103 1 FOAM, REAR PANEL - LH
20 A0003693155 1 STOW WELDMENT REAR PANEL LH
21 10000045697 1 WELDMENT, REAR PANEL - LH
22 A0000467105 1 FOAM PANEL FUEL BEZEL SIDE
23 3023331 1 WELDMENT, FUEL FILL
24 60696 8 WASHER, .250 FLAT .625/.050 - SS
25 61195 8 SCREW, .250-20 X .750 STANDARD HEX - SS
26 60679 6 NUT, .375-16 HEX - SS
27 60703 6 WASHER, .375 SPLIT LOCK - SS
28 61143 8 NUT, .250-20 U-CLIP - SHORT
29 3022271 1 WELDMENT, FUEL BEZEL
30 63320 6 SCREW, .375-16 X .750 SER FLANGE HEX - SS
31 MAC1975 1 FUEL CAP, 4.00 VENTED
32 10000047407 1 GASKET EMERGENCY STOP
33 30645 1 PANEL, EMERGENCY STOP
34 62254 4 SCREW, 10-32X.500 SFLG HEX 18-8 SS
35 65470 1 SWITCH E-STOP OPERATOR
36 10000045539 10 STB, SPACER HINGE
37 G052618 30 SCREW HHC M5-0.8 X 12 C8.8

33 34 35 36 35 34 37 Detail "A" 1 29 28 27 26 1 7 12 11 25 7 8 9 6 9 8 7 23 24 6 7 22 7 8 9 30 31 8 9 17 13 14 16 15 6 4 32 5 7 8 9 10 11 12 13 Detail "A" 20 18 18 19 20 21 38

Item Part No. Qty Description Notes

1 MAC3563 1 FAN, SMALL PLATFORM
2 3021333 1 WELDMENT, SCROLL
3 A0000390281 1 FOAM, TOP - HEAT EXCHANGER
4 A0000390275 1 FOAM, SIDE - HEAT EXCHANGER
5 A0000374783 1 WALL, HOSE STORAGE
6 61190 42 SCREW, .500-13 X 1.00 STANDARD HEX - SS
7 62261 42 WASHER, .500 FLAT .875/.063 - SS
8 60702 42 WASHER, .500 SPLIT LOCK - SS
9 60681 42 NUT, .500-13 HEX - SS
10 A0000374785 1 WALL PANEL, HOSE STORAGE
11 60679 6 NUT, .375-16 HEX - SS
12 60703 6 WASHER, .375 SPLIT LOCK - SS
13 60690 4 SCREW, .375-16 X 1.00 STANDARD HEX - SS
14 60698 6 WASHER, .375 FLAT .875/.040 - SS
15 62086 3 NUT, .312-18 U-CLIP - SHORT
16 3021424 1 BRACKET, HOSE WALL LINE
17 60679 2 NUT,.375-16 HEX - SS
18 3021154 2 HOSE, MOTOR SUPPLY RETURN
19 MAC3558 1 MOTOR, FAN MA12
20 3021162 3 FITTING ELBOW 90 DEG FF
21 3021155 1 HOSE, MOTOR CASE DRAIN
22 3021331 1 PLATE, SCROLL CONE
23 MAC3564 1 CONE, INLET - MEDIUM PLATFORM
24 3021343 1 BOTTOM, AIR TO AIR CHAMBER
25 3021335 1 EXCHANGER, AIR TO AIR
26 3010326 1 COVER, EXHAUST HOLE
27 63320 2 SCREW, .375-16 X .750 SERRATED FLANGE -
28 3021341 1 TOP, AIR TO AIR CHAMBER
29 A0000390260 1 FOAM, BOTTOM - HEAT EXCHANGER
30 63320 2 SCREW,.375-16 X .750 SER FLANGE HEX - SS
31 3021332 1 PLATE, MOTOR
32 MAC4165 1 TRANSMITTER, TEMPERATURE
33 G027529 2 NUT HEX LOCK 1/4-20 NY INS
34 112381 4 WASHER-FLAT 1/4 USS
35 MAC3833 2 TUBELINE CLAMP
36 MAC3899 3 SPLIT BUSHING - RUBBER - 1/2 IN TUBELINE
37 A0000349984 2 SCREW HHC 1/4-20 X 3.00 G8
38 3021163 1 FITTING ORG FF -8 MALE X -6 MALE

Technical diagram of a door assembly with numbered components and exploded view

02979

Item Part No. Qty Description Notes

1 10000028013 1 LINER, DOOR - INNER

2 A0000467116 1 FOAM, DOOR

3 10000045700 1 WELDMENT, DOOR - RH

4 10000037158 2 HINGE, LIFT OFF INCL HARDWARE

5 MAC3689 1 HANDLE, DEFEATER INCL HARDWARE

6 MAC3853 1 CAM, SINGLE POINT

7 60420 22 RIVET, .188 DIAMETER X .020 TO .125 GRIP

8 A0000466940 1 ASSEMBLY, DOOR - RIGHT

Technical diagram of a door assembly with numbered parts and exploded view, showing internal components and assembly steps.

Item Part No. Qty Description Notes

1 10000028329 1 LINER, CONTROL DOOR - INNER

2 A0000467118 1 FOAM, CONTROL DOOR

3 60415 8 NUT, 10-32 NYLOCK - SS

4 60067 8 WASHER, #10 FLAT .435/.060 - SS

5 MAC3805 2 HINGE, EXTERNAL MOUNT

6 10000019958 8 SCREW, 10-32 X .625 FLAT HEAD PHILLIPS - SS

7 10000037158 3 HINGE, LIFT OFF - BLACK Includes hardware

8 MAC3687 1 WING KNOB, 1/4 TURN Includes hardware

9 A0000165595 1 WELDMENT, CONTROL DOOR

03147

Item Part No. Qty Description Notes

1 10000028013 1 LINER, DOOR - INNER
2 A0000467116 1 FOAM, DOOR
3 10000045658 1 WELDMENT, DOOR - LH
4 MAC3689 1 HANDLE, DEFEATER
5 10000037158 3 HINGE, LIFT OFF includes hardware
6 MAC3853 1 CAM, SINGLE POINT
7 60420 22 RIVET, .188 DIAMETER X .020 TO .125 GRIP
8 A0000466945 1 ASSEMBLY, LH DOOR

Technical diagram of an electrical enclosure with labeled components and internal wiring

02929

Item Part No. Qty Description Notes

1 3021116 1 CONTROL PANEL
2 3021311 1 ASSEMBLY, CONTROL BOX MOUNT.
3 3020703 1 KEY SWITCH W/KEYS
4 CALL 1 DISPLAY
5 CALL 1 CONTROLLER, PROGRAM

Technical diagram of a multi-panel air conditioner unit with numbered components and assembly lines

03752

Item Part No. Qty Description Notes

1 3021682 1 SHROUD, OIL DEFLECTOR

2 60507 8 SCREW, .312-18 X 1.00 STANDARD HEX

3 60340 15 WASHER, .312 FLAT .875/.040 - SS

4 A0000504510 3 FOAM, RADIATOR BTW

5 3021681 1 SHROUD, TOP

6 60515 8 NUT, .312-18 HEX - SS

7 60701 11 WASHER, .312 SPLIT LOCK - SS

8 39850 1 CAP, RADIATOR-16 PSI

9 3021680 1 SHROUD, BOTTOM

10 62052 12 SCREW, .312-18 X .500 SER FLANGE HEX, G5

11 10000035460 1 BRACKET, RADIATOR MOUNT - LH

12 A0000767057 1 RADIATOR, MFH500

13 A0000938690 1 STB WELDMENT SHROUD RADIATOR LH

14 A0000939973 1 STB WELDMENT SHROUD RADIATOR RH

15 10000038485 1 BRACKET, RADIATOR MOUNT - RH

16 3021678 1 SHROUD, SIDE ANGLE

To pump 2 3 1 Drain from Hydraulic Motor Return Line from Hydraulic Oil Cooler 7 4 6 5 32 31 30 29 26 25 24 23 28 27 21 20 22 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 26 12 11 10 02983

Item Part No. Qty Description Notes
1 3021161 1 FITTING, TEE -8 RUN MALE 2 3021153 1 HOSE, PUMP CASE DRAIN 3 3021143 1 TUBE, MOTOR CASE DRAIN 4 MAC3597 1 BREATHER, TANK 5 MAC4098 1 FITTING, 90° ELBOW 1.00" - BLACK PIPE 6 51784 1 FITTING, NIPPLE 1.00NPT X 3.50 7 A0000214944 1 WELDMENT, HYDRAULIC TANK 8 MAC3621 1 STRAINER 9 MAC3700 1 PLUG, HYDRAULIC TANK 10 A0000300698 1 WALL MOUNT, HYDRAULIC TANK 11 60340 2 WASHER, .312 FLAT .875/.040 - SS 12 60687 2 SCREW, .312-18 X .750 STANDARD HEX - SS 13 60696 2 WASHER, .250 FLAT .625/.050 - SS 14 60684 2 SCREW, .250-20 X .875 STANDARD HEX - SS 15 MAC3561 1 INDICATOR / SWITCH. TANK LEVEL 16 60386 2 WASHER, .375 FLAT .993/.064 17 60205 2 SCREW, .375-16 X 1.00 STANDARD HEX, G5 18 60702 4 WASHER, .500 SPLIT LOCK - SS 19 61190 4 SCREW, .500-13 X 1.00 STANDARD HEX - SS 20 A0000072045 1 FITTING, STRAIGHT .500MNPT X .500ORB 21 MAC3737 1 VALVE, BALL 8 ORB 22 42197 1 FITTING, #8 ORBM TO .500HOSE BARB 23 MAC3521 1 FILTER, 7 MICRON 24 MAC4165 1 TRANSMITTER, TEMPERATURE 25 MAC3574 2 FITTING, NIPPLE 26 MAC3551 2 ASSEMBLY, FILTER HEAD 27 MAC3522 1 FILTER, 9 MICRON 28 3021159 1 FITTING 90 DEG FF -16 X -20 29 A0000416905 1 BRACKET, FILTER 30 60515 4 NUT, .312-18 HEX - SS 31 60701 4 WASHER, .312 SPLIT LOCK - SS 32 3021144 1 TUBE, RETURN 1.00 X .095 HEAT EXCHANGE 33 MAC3854 1 STRAINER on tank back

Technical diagram of a mechanical system with numbered components and labeled parts, including fan motor and pump connections.

Item Part No. Qty Description Notes

1 60515 2 NUT, .312-18 HEX - SS
2 60701 11 WASHER, .312 SPLIT LOCK - SS
3 60340 22 WASHER, .312 FLAT .875/.040 - SS
4 60690 2 SCREW, .375-16 X 1.00 STANDARD HEX - SS
5 A0005183839 1 STW HOSE SHIELD BRACKET
6 62086 1 NUT, .312-18 U-CLIP - SHORT TYPE
7 A0005183845 1 STW HOSE SHIELD COVER
8 60507 1 SCREW, .312-18 X 1.00 STANDARD HEX - SS
9 MAC35761 HYDRAULIC HEAT EXCHANGER
1030211581 FITTING, STRAIGHT -16 X 16 FF
1130211562 HOSE, PUMP OUTLET/INLET
1230211671 ASSEMBLY, HYDRAULIC MANIFOLD
1330211411 TUBE, MOTOR RETURN
1430211421 TUBE, MOTOR SUPPLY
15A0002384132 1 VALVE FLOW CONTROL PV76 W DEUTSCH
16A0005346725 2 FITTING STRT #8 ORBM X #8 ORFS
17A0000115601 1 BLOCK, HYDRAULIC MANIFOLD
--A0003888149 1 BLOCK HYD MANIFOLD IRONOptional
18A0005458297 1 VALVE ASSY HEAT COIL 500F/750FIncl: 3020920 coil
19MAC37581 MAIN RELIEF CARTRIDGE (SYSTEM SAFETY)
20A0000115924 1VALVE, CHECK 225 PSI
2130211651 FITTING, 90° FF - LONG
22A0005344667 1 CHECK VALVE FAN MOTOR
23MAC42601 5.00 PSI PRESSURE TRANSDUCER
2430211592 FITTING, 90° -16 X -20 FF

Exploded view diagram of a mechanical assembly with numbered components and exploded views

Item Part No. Qty Description Notes

1 A0000348682 2 ENGINE CHANNEL, REAR
2 60670 12 WASHER, .500 FLAT 1.060/.110, G8
3 60204 12 WASHER, .500 SPLIT LOCK
4 62277 12 SCREW, M12-1.75 X 25 STANDARD HEX, G10.9
5 A0000499164 4 ASSEMBLY, EXHAUST
6 60140 3 NUT, .375-16 HEX, G5
7 G022237 7 WASHER, .375 SPLIT LOCK
8 60698 7 WASHER, .375 FLAT .416/.820
9 MAC3831 1 GASKET, EXHAUST 3.00
10 60205 3 SCREW, .375-16 X 1.00 STANDARD HEX, G5
11 3021157 1 FITTING, 45° FF
12 MAC3938 1 KIT, 2.00 SPLIT FLANGE
13 MAC3855 1 HOSE. 90° SPLIT FLANGE 2.00
14 A0000344868 1 FITTING, 16-20 FLANGE - CODE 62
15 3021166 1 FITTING, 390-16-16 SPLIT FLANGE FF
16 3020815 1 PUMP, 63CC
17 60467 2 SCREW, .625-11 X 2.00 STANDARD HEX, G8
18 61023 2 WASHER, .625 SPLIT LOCK
19 60180 2 WASHER, .625 FLAT 1.750/.10-.16 - SS
20 A0000527692 1 PLATE, PUMP MOUNT includes hardware
21 A0000181059 1 COUPLER, FLYWHEEL
22 3020931 4 ASSEMBLY, ENGINE 4JJ1TABW-01 - T4
23 60983 6 SCREW, .500-13 X 3.00 STANDARD HEX, G5
24 60416 12 WASHER, .500 FLAT, 1.375/.090 - SS
25 62221 4 NUT, .500-13 NYLOCK, G5
26 18085 6 WASHER, .510 SNUB 2.00/,130
27 60666 4 CLAMP, HOSE - CONSTANT TORQUE - 1.75-2.625
28 28540 2 HOSE, CAC 2.00" X 4.00" LONG
29 A0000019099 1 VALVE, PAS 2.00" DIAMETER ESD-24V
30 3020571 1 HOUSING AIR CLEANER
31 61082 4 SCREW, M8-1.25X20 STD HEX G8.8
-- 3023369 1 HOOD, AIR CLEANER
-- 3020798 1 COVER, AIR FILTER included w/ 3020571

Technical diagram of a mechanical assembly with numbered components and detailed detail view A-A

Item Part No. Qty Description Notes

1 10000038437 1 WELDMENT, FUEL TANK

2 A0000374787 1 COVER, FUEL SENDING UNIT

3 60727 40 NUT, .375-16 U-CLIP - SHORT TYPE

4 60698 46 WASHER, .375 FLAT .875/.040 - SS

5 60690 40 SCREW, .375-16 X 1.00 STANDARD HEX - SS

6 A0000210067 4 CAP, CORNER - BOTTOM

7 A0000212765 1 ASSEMBLY, LED LIGHT 12/24VDC

8 A0000210066 1 WELDMENT, REAR PANEL - BOTTOM

9 60700 14 WASHER, .500 FLAT 1.250/.060 - SS

10 60702 14 WASHER, .500 SPLIT LOCK - SS

11 60683 14 SCREW, .500-13 X 1.500 STANDARD HEX - SS

12 A0000210064 1 ASSEMBLY, PANEL BOTTOM - LH

13 A0000210065 1 WELDMENT, PANEL BOTTOM - FRONT

14 62086 3 NUT, .312-18 U-CLIP - SHORT TYPE

15 A0000210063 1 ASSEMBLY, PANEL BOTTOM - RH

16 A0000499165 1 ASSEMBLY, CONTAINMENT

17 3023511 4 BOLT, CARRIAGE .375-16 X 10.00

18 MAC3811 1 FITTING. 90° .500NPTM X .500 BARB

19 MAC3809 2 FITTING ..375NPTM X .375 BARB

20 MAC3800 1 MANIFOLD, DRAIN

21 MAC3822 1 PLUG, .375 NPT

22 40737 1 FITTING, NIPPLE .500NPT X 3.00

23 40738 1 FITTING, NIPPLE, PIPE-.500NPTX4.000

24 3020923 1 1/2 IN GALVANIZED STEEL CAP

25 3023222 1 PAN, BATTERY - DUAL

26 60089 4 WASHER, .265 FENDER 1.250/.060

27 12927 4 NUT, .375-16 WING - SS

28 A0000348521 2 BRACKET, BATTERY HOLD-DOWN

29 60206 3 WASHER, .375 SPLIT LOCK

30 60205 6 SCREW, .375-16 X 1,00 STANDARD HEX, G5

31 60277 4 SCREW, 10-32 X .500 PAN PHILLIPS, G2

32 52634W 1 BRACKET, MOUNTING PAS CONTROL BOX

33 29653 2 GROMMET, .563ID X .125 - RUBBER

34 52636 1 BOX, CONTROL

35 60243 4 WASHER, .250 FLAT .735/.060 - SS

36 60281 4 SCREW, .250-20 X .750 STANDARD HEX, G5

37 10000039036 1 BOX, CONTROL

38 A0000165704 1 MOUNT, CONTROL BOX - COMMON

39 61143 4 NUT, .250-20 U-CLIP - SHORT TYPE

40 60205 3 SCREW, .375-16 X 1,00 STANDARD HEX, G5

41 A0000165708 1 ALTERNATOR GUARD

42 60526 2 SCREW, 8-32X.500 PAN PHIL G2

43 A0000199401 1 LED OVAL DOME LIGHT 178W WHITE 12-24V

44 60268 3 RIVET, .188 DIA X .126 TO .250 GRIP

45 A0000199404 1 ALW BRACKET LED MOUNTING

46 60270 2 NUT, 8-32 NYLK G 6.0

47 MAC3946 1 3/4 IN HOSE BARB X 3/8 IN NPTM

Technical diagram of an electronic device with numbered components and labeled parts

Item Part No. Qty Description Notes

1 3021216 1 WELDMENT, FUEL TANK

2 61093 8 NUT, .500-13 HEX G8

3 60276 8 WASHER, .500 SPLIT LOCK

4 60309 16 WASHER, .500 FLAT 1.060/.090

5 3021219 2 FUEL TANK HOLD DOWN

6 60275 8 SCREW, .500-13X1.000 STD HEX G5

7 MAC3645 1 HOSE, 4.50 ID - RUBBER

8 20182 2 CLAMP, HOSE SAE 088 (4.09-6.00)

9 60062 5 SCREW, 10-32 X .750 PAN PHILLIPS, G2

10 MAC3978 1 FUEL SENDING UNIT, 14.50 INCH

11 MAC3809 2 3/8 IN NPTM x 3/8 IN BARBED FITTING

12 22602 1 FITTING, TEE-.375MNPTXFNPTXFNPT BRS

13 3021914 1 FUEL TANK TEMP SENDING UNIT

14 MAC3821 1 3/8 IN BRASS BALL VALVE

15 25922 1 FITTING, NIPPLE, PIPE-.375NPTXCLOSE BRS

16 60140 2 NUT, .375-16 HEX G5

17 G022237 2 WASHER LOCK 3/8

18 3020521 3 5/8 IN TUBELINE CLAMP

19 A0000374788 1 STMW 550F SEAL WALL HOSE CLAMP BRACKET

20 112381 6 WASHER-FLAT 1/4 USS

21 60824 6 SCREW, .250-20X2.000 STD HEX 18-8 SS

22 60205 2 SCREW, .375-16X1.000 STD HEX G5

23 60698 4 WASHER, .375 FLAT .875/.040 18-8 SS USS

Technical diagram of a mechanical assembly with numbered components for identification and assembly reference.

02987

Item Part No. Qty Description Notes

1 60690 8 SCREW, .375-16 X 1.00 STANDARD HEX, SS

2 60386 16 WASHER, 375 FLAT .993/.064

3 60792 8 NUT, .375-16 NYLOCK - SS

4 10000046334 2 WELDMENT, FENDER

5 MAC3637 2 GROMMET, 6.00 OVAL

6 MAC4083 2 LIGHT, 6.00 OVAL LED STOP/TURN/TAIL

7 10000045970 1 WELDMENT, TRAILER

8 20374B 2 WHEEL, ST235/80R16 - BLACK

9 60096 10 NUT, .500-20 LUG, G5

10 60503 6 SCREW, SHACKLE - .562-18 X 3.0 STD HEX, G5

11 19637 2 PLATE, SHACKLE BRACKET

12 60504 6 NUT, .562-18 LOCK, G5

13 MAC0594 1 ASSEMBLY, AXLE 6000 LB - 48"

14 3020800 1 JACK, SQUARE DROP LEG - 8000 LB

15 3023517 2 SCREW, .625-11 X 5.25 STANDARD HEX, G8

16 3023540 4 WASHER, .625 X 1.750OD

17 19519 1 COUPLER, 2.31 IN. BALL

18 3023497 2 NUT, .625-11 NYLOCK, G8

Technical diagram of a mechanical assembly with numbered components and dimension annotations

02988

Item Part No. Qty Description Notes

1 60386 16 WASHER, .375 FLAT .993/.064
2 60358 8 NUT, .375-16 NYLOCK, G5
3 10000046846 2 FENDER
4 MAC3637 2 GROMMET, 6.00 OVAL
5 MAC4083 2 LIGHT, 6.00 OVAL LED STOP/TURN/TAIL
6 61036 8 SCREW, .375-16 X 1.250 STANDARD HEX - SS
7 60503 14 SCREW, SHACKLE - .562-18 X 3.0 STD HEX, G5
8 60504 14 NUT, .562-18 LOCK, G5
9 40545 2 EQUALIZER, 5.625 CENTERS

10 18377B 4 WHEEL, ST225/75R15 - BLACK

11 60096 24 NUT, .500-20 LUG, G5

12 19637 8 PLATE, SHACKLE BRACKET

13 MAC0594 2 ASSEMBLY, AXLE 6000 LB - 48"

14 10000046939 1 WELDMENT, TRAILER

15 3020800 1 JACK, SQUARE DROP LEG - 8000 LB

16 60309 10 WASHER, .500 FLAT 1.060/.090

17 60390 2 SCREW, .500-13 X 3.50 STANDARD HEX, G5

18 23367 2 CHAIN, SAFETY 7800 LBS RATED

19 3023517 2 SCREW, .625-11 X 5.50 STANDARD HEX, G8

20 3023540 4 WASHER, .625 FLAT

21 MAC0069 1 COUPLER, 2.31 IN. BALL

22 3023497 2 NUT, .625-11 NYLOCK, G8

23 62221 2 NUT, .500-13 NYLOCK, G5

Generac MFH500 - Item Part No. Qty Description Notes - 1

  1. ALTERNATOR.... MAC4033
    2 BELT, FAN 3020945
  2. FILTER, AIR.... MAC4036
  3. FILTER, FUEL - PRIMARY ...... MAC4028
  4. FILTER, FUEL - SECONDARY 29773SRV
  5. FILTER, OIL.... MAC4026
  6. GLOW PLUG.... MAC4031
  7. HOSE, RADIATOR - UPPER.... 3021010
  8. HOSE, RADIATOR - LOWER.... 3021009
  9. PUMP, FUEL.... 33764
  10. STARTER MAC4032
  11. FILTER, 7 MICRON.... MAC3521
  12. FILTER, 9 MICRON.... MAC3522

SERVICE KITS

  1. 500 HOUR KIT.....A0000322425

INCLUDES: AIR FILTER MAC4036, PRIMARY FUEL FILTER ELEMENT MAC4028, SECONDARY FUEL FILTER ELEMENT MAC4027, 7 MICRON FILTER MAC3521, 9 MICRON FILTER MAC3522 AND OIL FILTER MAC4026

Generac MFH500 - SERVICE KITS - 1

natural_image Line drawing of a rectangular electronic device with multiple ports and a screen (no text or symbols)

Generac MFH500 - SERVICE KITS - 2

natural_image Technical line drawing of a mechanical component with mounting bracket (no text or symbols)

Generac MFH500 - SERVICE KITS - 3

natural_image Technical line drawing of a mechanical component with a cylindrical body and mounting flange (no text or symbols)

Generac MFH500 - SERVICE KITS - 4

natural_image Isometric line drawing of a mechanical housing or enclosure with internal compartments and mounting points (no text or symbols)

IMAGE UNAVAILABLE 5

IMAGE UNAVAILABLE 6

Generac MFH500 - SERVICE KITS - 7

natural_image Simple line drawing of a cylindrical object with segmented bands, no text or symbols present
  1. DISPLAY.... CALL
  2. RELAY, 12V 30/50A N.O. W DIODE 68106
  3. SWITCH, KEY INCLUDED 3020703
  4. CONTROLLER, PROGRAMMED .... CALL
  5. SENSOR, AIR INTAKE/AMBIENT TEMPERATURE 3020941
  6. SENDER, OUTLET AIR TEMPERATURE.... MAC4165
  7. BLACK DUCT, 12 INCH X 6° X 25'.... MAC3348

Part No. A0000263975 Rev. D 03/05/2024

©2024 Generac Power Systems, Inc.

All rights reserved.

Specifications are subject to change without notice.

No reproduction allowed in any form without prior written consent

from Generac Power Systems, Inc.

GENERAC®

MOBILE

Generac Power Systems, Inc.

S45 W29290 Hwy. 59, Waukesha WI 53189

GeneracMobileProducts.com | 844-ASK-GNRC | 844-275-4672

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Product information

Brand : Generac

Model : MFH500

Category : Heating