background image

Owner’s Manual for Flameless Air Heater

13

Maintenance

Section 4 Maintenance

NOTE: 

Normal maintenance service and replacement of 

parts is the responsibility of the owner and, as such, are 
not considered defects in materials or workmanship 
within the terms of the warranty. It is strongly 
recommended that equipment be periodically checked by 
an IASD.

Maintenance Tasks

Daily checks must be performed when unit is operated
continuously for extended periods of time. Daily checks
and routine monthly checks can be performed by an
authorized operator.

Daily Walk Around Inspection

Look for conditions that could hinder performance or
safety, such as (but not limited to) oil, coolant, fuel
leakage, blocked vents, loose or missing hardware and
electrical connections. Check for foreign matter blocking
the vents and on top of unit.

Visually inspect outer cover for significant damage

beyond scuffs and small nicks.

Visually inspect for wire abrasion.

Visually inspect the fan belt for cracks, fraying and

stretching. Verify belt is properly seated in the

pulley grooves. Every 750 hours, it is

recommended that the belt be removed and

checked for wear. While belt is removed, inspect

pulleys and bearing. Rotate and feel for hard

turning or unusual sounds.

Coolant should be checked daily.

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.

Check Engine Oil Level

NOTE: 

If engine was running, wait at least ten minutes 

before proceeding.

1.

Remove dipstick and wipe it dry with a clean, lint 
free cloth.

2.

Slowly insert the clean dipstick into the tube. Verify 
the dipstick is fully seated in the dipstick tube. 

3.

After ten seconds, remove the dipstick and look at 
the oil level on both sides. The lower of the two 
readings will be the correct oil level measurement.

4.

Add oil (if necessary) to adjust the level. After 
adding or changing the oil, the engine should run 
for one minute before checking the oil level. Wait 
ten minutes to allow the engine to cool and oil to 
fully drain into the oil pan.

Typical causes of inaccurate oil level readings:

Reading the high level of the dipstick.

Reading the dipstick before the oil fully drains into

the oil pan.

Inserting and removing the dipstick too quickly.

The dipstick is not fully seated in the dipstick tube.

Drain the Oil

1.

Place container under drain port, or connect hose 
or piping to drain port leading to container.

2.

Remove plug from oil drain.

3.

Open drain valve.

4.

See engine manual for oil filter information.

5.

Close drain valve.

6.

Remove hose or piping if applicable.

7.

Replace plug in drain port on sub base.

&$87,21

(QJLQHGDPDJH9HULI\SURSHUW\SHDQGTXDQWLW\RI
HQJLQHRLOSULRUWRVWDUWLQJHQJLQH)DLOXUHWRGRVR
FRXOGUHVXOWLQHQJLQHGDPDJH

:$51,1*

5LVNRIEXUQV$OORZHQJLQHWRFRROEHIRUH
GUDLQLQJRLORUFRRODQW)DLOXUHWRGRVR
FRXOGUHVXOWLQGHDWKRUVHULRXVLQMXU\

3RWHQWLDORIFDQFHU3URORQJHGRUUHSHDWHGFRQWDFW
ZLWKXVHGPRWRURLOKDVEHHQVKRZQWRFDXVHFDQFHU
LQODERUDWRU\DQLPDOV7KRURXJKO\ZDVKH[SRVHG
DUHDVZLWKVRDSDQGZDWHU

 B

:$51,1*

Summary of Contents for MAC 750F

Page 1: ...MAC 750F Flameless Air Heater Owner s Manual MODEL NUMBER _________________________ SERIAL NUMBER _________________________ DATE PURCHASED ________________________ Register your Generac Mobile Product...

Page 2: ...W DQG VRPH RI LWV FRQVWLWXHQWV DUH NQRZQ WR WKH VWDWH RI DOLIRUQLD WR FDXVH FDQFHU ELUWK GHIHFWV DQG RWKHU UHSURGXFWLYH KDUP 51 1 DOLIRUQLD 3URSRVLWLRQ 7KLV SURGXFW FRQWDLQV RU HPLWV FKHPLFDOV NQRZQ W...

Page 3: ...list 9 Engine Oil Check 9 Hydraulic Oil Check 9 Engine Coolant Check 9 Battery Check 9 Engine and Heater Startup 10 Adjusting Heater Output 11 AUTO Mode 11 MANUAL Mode 11 Heater and Engine Shutdown 11...

Page 4: ...iv Owner s Manual for Flameless Air Heater This page intentionally left blank...

Page 5: ...IGHT TO MODIFY THIS MANUAL AT ANY TIME Safety Rules The manufacturer cannot anticipate every possible circumstance that might involve a hazard The warnings in this manual and on tags and decals affixe...

Page 6: ...QRW WRXFK KRW VXUIDFHV HHS PDFKLQH DZD IURP FRPEXVWLEOHV GXULQJ XVH RW VXUIDFHV FRXOG UHVXOW LQ VHYHUH EXUQV RU ILUH 87 21 TXLSPHQW RU SURSHUW GDPDJH R QRW EORFN DLU LQWDNH RU UHVWULFW SURSHU DLU IORZ...

Page 7: ...G EOLQGQHVV I HOHFWURO WH FRQWDFWV VNLQ RU H HV IOXVK ZLWK ZDWHU DQG VHHN LPPHGLDWH PHGLFDO DWWHQWLRQ 51 1 FFLGHQWDO 6WDUW XS LVFRQQHFW WKH QHJDWLYH EDWWHU FDEOH WKHQ WKH SRVLWLYH EDWWHU FDEOH ZKHQ ZR...

Page 8: ...4 Owner s Manual for Flameless Air Heater Introduction and Safety This page intentionally left blank...

Page 9: ...or H Controller B Breakaway battery for trailer brakes I Manual compartment C Diesel engine J Diesel engine turbo charger D Hydraulic fluid filters K Diesel engine oil dipstick E Hydraulic fluid fill...

Page 10: ...E Comply with all laws regulating the storage and handling of fuels Follow these guidelines Use only ultra low sulfur diesel fuel When temperatures are at or below freezing use No 1D diesel fuel When...

Page 11: ...l Chock Guidelines Select wheel chock according to equipment type and size Always use in pairs and on firm surfaces Chock in direction of grade Chock both sides of wheel if direction of grade is unkno...

Page 12: ...s 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...

Page 13: ...Coolant Check 1 Remove radiator fill cap 2 Check coolant level and degrees of fouling Coolant level should be approximately 10 mm below the radiator core top 3 Install radiator cap securely Battery C...

Page 14: ...ure 3 3 Engine Warming 5 When the coolant temperature reaches 140 F 60 C engine warming is complete and the heater automatically begins warming up The screen displays Heater is warming up Please wait...

Page 15: ...or minimum fan press MIN FAN Figure 3 7 item A For maximum fan press MAX FAN Figure 3 7 item B Figure 3 7 MANUAL mode Heater and Engine Shutdown 1 Press OFF to stop the heater Figure 3 7 item C The sc...

Page 16: ...12 Owner s Manual for Flameless Air Heater Operation This page intentionally left blank...

Page 17: ...ted Verify there are no cracks or corrosion Check Engine Oil Level NOTE If engine was running wait at least ten minutes before proceeding 1 Remove dipstick and wipe it dry with a clean lint free cloth...

Page 18: ...ty environments Use the heater hour meter or calendar time whichever occurs first from the previous maintenance interval to determine the next required maintenance interval Note that some checks are b...

Page 19: ...condition Every 250 Hours Replace fuel filter element Every 500 Hours Replace engine oil and oil filter element Replace fuel filter element Replace engine air filter Check alternator drive belt tensio...

Page 20: ...l parts on top of battery Disconnect charging source prior to connecting or disconnecting battery terminals NOTE Spilled electrolyte is to be washed down with an acid neutralizing agent A common pract...

Page 21: ...re connected to the unit at the factory Connect cables to battery posts as follows 1 Connect battery cable from starter contactor to positive POS or battery post 2 Connect black battery cable to negat...

Page 22: ...18 Owner s Manual for Flameless Air Heater Maintenance This page intentionally left blank...

Page 23: ...ice failure Engine Will Not Crank Electric Start Dead battery Replace battery Battery terminal is disconnected loose or corroded Replace corroded part and tighten securely Starter ground terminal is d...

Page 24: ...lant Contact Generac Technical Service Thermostat failure Change thermostat Oil Pressure Does Not Rise Engine oil viscosity is incorrect Change with oil of correct viscosity Engine oil level is not su...

Page 25: ...heat Wait approximately ten seconds after heater power up Engine is not ready Check RPMs Fuel Level or Wait to Start Engine RPMs 500 Fuel level 10 Wait to Start signal Low Fuel Warning Fuel level 20 F...

Page 26: ...Low hydraulic pressure Low hydraulic level Fuel Over temp Fuel temperature 140 F 1 Open heat circuit solenoid 2 Increase scroll fan RPM to max RPM via fan circuit sole noid and drop engine to idle 3...

Page 27: ...Owner s Manual for Flameless Air Heater 23 Installation Diagrams and Service Log Section 6 Installation Diagrams and Service Log Engine Harness 1 of 3...

Page 28: ...24 Owner s Manual for Flameless Air Heater Installation Diagrams and Service Log Engine Harness 2 of 3...

Page 29: ...Owner s Manual for Flameless Air Heater 25 Installation Diagrams and Service Log Engine Harness 3 of 3...

Page 30: ...26 Owner s Manual for Flameless Air Heater Installation Diagrams and Service Log Trailer Wiring Harness...

Page 31: ...___________________________________________________ __________________________________________________________________________________________ _________________________________________________________...

Page 32: ...ducts All rights reserved Specifications are subject to change without notice No reproduction allowed in any form without prior written consent from Generac Mobile Products Generac Mobile Products 215...

Reviews: