FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2015 13.G Service Manual

Example only:
WARNING
Exceeding the SafetyCompliance CertificationLabel vehicle weight rating limitscould result in substandardvehicle handling or performance,engine, transmission or structuraldamage, serious damage to thevehicle, loss of control andpersonal injury.
38Motorhome (), enUSALoad CarryingE142523 E142524

GCW (Gross Combined Weight)- is the Gross Vehicle Weight plusthe weight of the fully loadedtrailer.
GCWR (Gross CombinedWeight Rating) - is the maximumallowable weight of the vehicleand the loaded trailer, includingall cargo and passengers, that thevehicle can handle without riskingdamage. (Important: The towingvehicle’s braking system is rated
for operation at Gross VehicleWeight Rating, not at GrossCombined Weight Rating.)Separate functional brakes shouldbe used for safe control of towedvehicles and for trailers where theGross Combined Weight of thetowing vehicle plus the trailerexceed the Gross Vehicle WeightRating of the towing vehicle.TheGross Combined Weight mustnever exceed the GrossCombined Weight Rating.
Maximum Loaded TrailerWeight - is the highest possibleweight of a fully loaded trailer thevehicle can tow. It assumes avehicle with mandatory options,driver and front passenger weight(150 pounds [68 kilograms]each), no cargo weight (internal
or external) and a tongue load of10–15% (conventional trailer).Consult an authorized dealer (orthe RV and Trailer Towing Guideavailable at an authorized dealer)for more detailed information.
WARNINGS
Do not exceed the GVWR orthe GAWR specified on theSafety Compliance CertificationLabel.
Do not use replacement tires
with lower load carryingcapacities than the original tiresbecause they may lower thevehicle’s GVWR and GAWRlimitations. Replacement tireswith a higher limit than the originaltires do not increase the GVWRand GAWR limitations.
Exceeding any vehicle weightrating limitation could resultin serious damage to the vehicleand/or personal injury.
Steps for determining thecorrect load limit:
39Motorhome (), enUSALoad CarryingE143819GCWGVW

1. Locate the statement "Thecombined weight of occupantsand cargo should never exceedXXX kg or XXX lb." on yourvehicle’s placard.
2. Determine the combined weightof the driver and passengers thatwill be riding in your vehicle.
3. Subtract the combined weightof the driver and passengers fromXXX kg or XXX lb.
4. The resulting figure equals theavailable amount of cargo andluggage load capacity. Forexample, if the “XXX” amountequals 1,400 lb. and there will befive 150 lb. passengers in yourvehicle, the amount of availablecargo and luggage load capacityis 650 lb. (1400-750 (5 x 150) =650 lb.)
5. Determine the combined weightof luggage and cargo being loadedon the vehicle. That weight maynot safely exceed the availablecargo and luggage load capacitycalculated in Step 4.
6. If your vehicle will be towing atrailer, load from your trailer willbe transferred to your vehicle.Consult this manual to determinehow this reduces the availablecargo and luggage load capacityof your vehicle.
The following gives you a fewexamples on how to calculate theavailable amount of cargo and
luggage load capacity:
*Suppose your vehicle has a1400-pound (635-kilogram) cargoand luggage capacity. You decideto go golfing. Is there enough loadcapacity to carry you, four of yourfriends and all the golf bags? Youand four friends average 220pounds (99 kilograms) each andthe golf bags weigh approximately30 pounds (13.5 kilograms) each.The calculation would be: 1400 -(5 x 220) - (5 x 30) = 1400 - 1100- 150 = 150 pounds. Yes, you haveenough load capacity in yourvehicle to transport four friendsand your golf bags. In metric units,the calculation would be: 635kilograms - (5 x 99 kilograms) -(5 x 13.5 kilograms) = 635 - 495 -67.5 = 72.5 kilograms.
*Suppose your vehicle has a1400-pound (635-kilogram) cargoand luggage capacity. You andone of your friends decide to pickup cement from the local homeimprovement store to finish thatpatio you have been planning forthe past two years. Measuring theinside of the vehicle with the rearseat folded down, you have roomfor twelve 100-pound(45-kilogram) bags of cement. Doyou have enough load capacity totransport the cement to yourhome? If you and your friend eachweigh 220 pounds (99 kilograms),the calculation would be: 1400 -(2 x 220) - (12 x 100) = 1400 - 440- 1200 = - 240 pounds. No, you donot have enough cargo capacity
to carry that much weight. Inmetric units, the calculation would
40Motorhome (), enUSALoad Carrying

be: 635 kilograms - (2 x 99kilograms) - (12 x 45 kilograms) =635 - 198 - 540 = -103 kilograms.You will need to reduce the loadweight by at least 240 pounds(104 kilograms). If you removethree 100-pound (45-kilogram)cement bags, then the loadcalculation would be:1400 - (2 x220) - (9 x 100) = 1400 - 440 -900 = 60 pounds. Now you havethe load capacity to transport thecement and your friend home. Inmetric units, the calculation wouldbe: 635 kilograms - (2 x 99kilograms) - (9 x 45 kilograms) =635 - 198 - 405 = 32 kilograms.
The above calculations alsoassume that the loads arepositioned in your vehicle in amanner that does not overloadthe Front or the Rear Gross AxleWeight Rating specified for yourvehicle on the Safety ComplianceCertification Label. The label shallbe affixed to either the door hingepillar, door-latch post, or the dooredge that meets the door-latchpost, next to the driver's seatingposition.
Special Loading Instructionsfor Owners of Pick-up Trucksand Utility-type Vehicles
WARNING
Loaded vehicles may handledifferently than unloadedvehicles. Extra precautions, suchas slower speeds and increasedstopping distance, should betaken when driving a heavilyloaded vehicle.
Your vehicle can haul more cargoand people than most passengercars. Depending upon the typeand placement of the load,hauling cargo and people mayraise the center of gravity of thevehicle.
41Motorhome (), enUSALoad Carrying

TOWING A TRAILER
WARNINGS
Do not exceed the GVWR orthe GAWR specified on thecertification label.
Towing trailers beyond themaximum recommendedgross trailer weight exceeds thelimit of the vehicle and couldresult in engine damage,transmission damage, structuraldamage, loss of vehicle control,vehicle rollover and personalinjury.
Your vehicle may have electricalitems, such as fuses or relays,related to towing. See the Fuseschapter.
Your vehicle's load capacitydesignation is by weight, not byvolume, so you cannot necessarilyuse all available space whenloading a vehicle.
Towing a trailer places an extraload on your vehicle's engine,transmission, axle, brakes, tiresand suspension. Inspect thesecomponents periodically during,and after, any towing operation.
Load Placement
To help minimize how trailermovement affects your vehiclewhen driving:
•Load the heaviest items closestto the trailer floor.
•Load the heaviest itemscentered between the left andright side trailer tires.
•Load the heaviest items abovethe trailer axles or just slightlyforward toward the trailertongue. Do not allow the finaltrailer tongue weight to goabove or below 10-15% of theloaded trailer weight.
•Select a tow bar with thecorrect rise or drop. When boththe loaded vehicle and trailerare connected, the trailer frameshould be level, or slightlyangled down toward yourvehicle, when viewed from theside.
When driving with a trailer orpayload, a slight takeoff vibrationor shudder may be present due tothe increased payload weight.Additional information regardingproper trailer loading and settingyour vehicle up for towing islocated in another chapter of thismanual. See Load Limit (page36). You can also find theinformation in the RV & TrailerTowing Guide, available at anauthorized dealer.
42Motorhome (), enUSATowing

RECOMMENDED TOWING
WEIGHTS
Note:Do not exceed the trailerweight for your vehicleconfiguration listed in the chartbelow.
Note:Make sure to take intoconsideration trailer frontal area.Do not exceed 60 feet2 (5.6
meters2) trailer frontal area.
Note:For high altitude operation,reduce the gross combined weightby 2% per 1000 feet (300 meters)starting at the 1000 foot (300meter) elevation point.
Note:Certain states requireelectric trailer brakes for trailersover a specified weight. Be sure tocheck state regulations for thisspecified weight. The maximumtrailer weights listed may be limitedto this specified weight, as thevehicle’s electrical system may notinclude the wiring connectorneeded to activate electric trailerbrakes.
Your vehicle may tow a trailerprovided the maximum trailerweight is less than or equal to themaximum trailer weight listed foryour vehicle configuration on thefollowing chart.
Maximum trailerweightMaximumGCWRMaximumGVWRRear axleratio
7000 lb (3175 kg)23000 lb(10432 kg)16000 lb (7257kg)4.30
5000 lb (2268 kg)23000 lb(10432 kg)18000 lb (8165kg)4.30
6500 lb (2894 kg)26000 lb(11793 kg)19500 lb(8845 kg)4.88
5500 lb (2500 kg)26000 lb(11793 kg)20500 lb(9299 kg)5.38
4000 lb (1814 kg)26000 lb(11793 kg)22000 lb(9979 kg)5.38
6000 lb (2721 kg)30000 lb(13608 kg)24000 lb(10886 kg)6.17
4000 lb (1814 kg)30000 lb(13608 kg)26000 lb(11793 kg)6.17
43Motorhome (), enUSATowing

ESSENTIAL TOWING CHECKS
Follow these guidelines for safetowing:
•Do not tow a trailer until youdrive your vehicle at least1000 mi (1,600 km).
•Consult your local motorvehicle laws for towing a trailer.
•See the instructions includedwith towing accessories for theproper installation andadjustment specifications.
•Service your vehicle morefrequently if you tow a trailer.See your scheduledmaintenance information.
•If you use a rental trailer, followthe instructions the rentalagency gives you.
Another chapter of this manualcontains load specification termsfound on the tire label and SafetyCompliance label and instructionson calculating your vehicle's load.See Load Limit (page 36).
Remember to account for thetrailer tongue weight as part ofyour vehicle load when calculatingthe total vehicle weight.
Hitches
Do not use a hitch that eitherclamps onto the bumper orattaches to the axle.
Distribute the trailer load so10-15% of the total trailer weight
is on the tongue.
Weight-Distributing Hitches
WARNING
Do not adjust aweight-distributing hitch toany position where the rearbumper of the vehicle is higherthan it was before attaching thetrailer. Doing so will defeat thefunction of the weight-distributinghitch, which may causeunpredictable handling, and couldresult in serious personal injury.
When hooking-up a trailer using aweight-distributing hitch, alwaysuse the following procedure:
1.Park the loaded vehicle,without the trailer, on a levelsurface.
2.Measure the height to the topof your vehicle’s front wheelopening on the fender. This isH1.
3.Securely attach the loadedtrailer to your vehicle withoutthe weight-distributing barsconnected.
4.Measure the height to the topof your vehicle’s front wheelopening on the fender a secondtime. This is H2.
5.Install and adjust the tensionin the weight-distributing barsso that the height of yourvehicle’s front wheel openingon the fender is approximately
halfway between H1 and H2.
44Motorhome (), enUSATowing

6.Check that the trailer is level orslightly nose down toward yourvehicle. If not, adjust the ballheight accordingly and repeatSteps 1-6.
7.Lock the bar tension adjusterin place.
8.Check that the trailer tonguesecurely attaches and locksonto the hitch.
9.Install safety chains, lightingand trailer brake controls asrequired by law or the trailermanufacturer.
Safety Chains
Note:Never attach safety chainsto the bumper.
Always connect the safety chains
to the hook retainers of yourvehicle hitch.
To connect the safety chains,cross them under the trailertongue and allow enough slack forturning tight corners. Do not allowthe chains to drag on the ground.
Trailer Brakes
WARNING
Do not connect a trailer'shydraulic brake systemdirectly to your vehicle's brakesystem. Your vehicle may not haveenough braking power and yourchances of having a collisiongreatly increase.
Electric brakes and manual,automatic or surge-type trailerbrakes are safe if you install themproperly and adjust them to themanufacturer's specifications. Thetrailer brakes must meet local andfederal regulations.
The rating for the tow vehicle'sbraking system operation is atthe gross vehicle weight rating,not the gross combined weightrating.
Separate functioning brakesystems are required for safecontrol of towed vehicles andtrailers weighing more than1500 pounds (680 kilograms)when loaded.
Trailer Lamps
WARNING
Never connect any trailerlamp wiring to the vehicle'stail lamp wiring; this may damagethe electrical system resulting infire. Contact your authorizeddealer as soon as possible forassistance in proper trailer towwiring installation. Additionalelectrical equipment may berequired.
Trailer lamps are required on mosttowed vehicles. Make sure allrunning lights, brake lights,direction indicators and hazardlights are working.
45Motorhome (), enUSATowing

Before Towing a Trailer
Practice turning, stopping andbacking up to get the feel of yourvehicle-trailer combination beforestarting on a trip. When turning,make wider turns so the trailerwheels clear curbs and otherobstacles.
When Towing a Trailer
•Do not drive faster than70 mph (113 km/h) during thefirst 500 mi (800 km).
•Do not make full-throttlestarts.
•Check your hitch, electricalconnections and trailer wheellug nuts thoroughly after youhave traveled 50 mi (80 km).
•When stopped in congested orheavy traffic during hotweather, place the gearshift inpark (P) to aid engine andtransmission cooling and tohelp air conditioningperformance.
•Switch off the speed controlwith heavy loads or in hillyterrain. The speed control mayturn off automatically whenyou are towing on long, steep
grades.
•Shift to a lower gear whendriving down a long or steephill. Do not apply the brakescontinuously, as they mayoverheat and become lesseffective.
•If your transmission is equippedwith a Grade Assist orTow/Haul feature, use thisfeature when towing. Thisprovides engine braking andhelps eliminate excessivetransmission shifting foroptimum fuel economy andtransmission cooling.
•Allow more distance forstopping with a trailerattached. Anticipate stops andbrake gradually.
•Avoid parking on a grade.However, if you must park on agrade:
1.Turn the steering wheel topoint your vehicle tires awayfrom traffic flow.
2.Set your vehicle parking brake.
3.Place the automatictransmission in park (P).
4.Place wheel chocks in the frontand back of the trailer wheels.(Chocks not included withvehicle.)
Launching or Retrieving a Boator Personal Watercraft (PWC)
Note:Disconnect the wiring to thetrailer before backing the trailerinto the water.
Note:Reconnect the wiring to thetrailer after removing the trailerfrom the water.
46Motorhome (), enUSATowing

When backing down a rampduring boat launching or retrieval:
•Do not allow the static waterlevel to rise above the bottomedge of the rear bumper.
•Do not allow waves to breakhigher than 6 in (15 cm) abovethe bottom edge of the rearbumper.
Exceeding these limits may allowwater to enter vehiclecomponents:
•Causing internal damage to thecomponents.
•Affecting driveability, emissionsand reliability.
Replace the rear axle lubricantanytime the rear axle has beensubmerged in water. Water mayhave contaminated the rear axlelubricant, which is not normallychecked or changed unless a leakis suspected or other axle repair isrequired.
TRANSPORTING THE VEHICLE
If you need to have your vehicle towed,contact a professional towing service or,if you are a member of a roadsideassistance program, your roadsideassistance service provider. When callingfor a tow truck, let the operator know whatkind of vehicle you have.
It is advisable to have your vehicle towedwith a wheel lift and dollies or flatbedequipment. Do not tow with a slingbelt.Ford Motor Company has not approved aslingbelt towing procedure. Vehicledamage may occur if towed incorrectly, orby any other means.
47Motorhome (), enUSATowingE143886