FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2016 13.G Service Manual

LOAD LIMIT
Vehicle Loading - with andwithout a Trailer
This section will guide you in theproper loading of your vehicle,trailer or both, to keep your loadedvehicle weight within its designrating capability, with or withouta trailer. Properly loading yourvehicle will provide maximumreturn of vehicle designperformance. Before loading yourvehicle, familiarize yourself with
the following terms fordetermining your vehicle’s weightratings, with or without a trailer,from the vehicle’s Tire Label orSafety Compliance CertificationLabel:
Base Curb Weight - is the weightof the vehicle including a full tankof fuel and all standardequipment. It does not includepassengers, cargo, or optionalequipment.
Vehicle Curb Weight - is theweight of your new vehicle whenyou picked it up from yourauthorized dealer plus anyaftermarket equipment.
Cargo Weight - includes allweight added to the Base CurbWeight, including cargo andoptional equipment. When towing,trailer tongue load or king pinweight is also part of cargo weight.
GAW (Gross Axle Weight) - isthe total weight placed on eachaxle (front and rear) including
vehicle curb weight and allpayload.
GAWR (Gross Axle WeightRating) - is the maximumallowable weight that can becarried by a single axle (front orrear). These numbers are shownon the Safety ComplianceCertification Label. The label shallbe affixed to either the door hinge
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pillar, door-latch post, or the dooredge that meets the door-latchpost, next to the driver's seatingposition.The total load on eachaxle must never exceed its
Gross Axle Weight Rating.
Note: For trailer towinginformation refer to the RV andTrailer Towing Guide available atan authorized dealer.
GVW (Gross Vehicle Weight) -is the Vehicle Curb Weight, pluscargo, plus passengers.
GVWR (Gross Vehicle WeightRating) - is the maximumallowable weight of the fullyloaded vehicle (including alloptions, equipment, passengersand cargo). It is shown on the
Safety Compliance CertificationLabel. The label shall be affixedto either the door hinge pillar,door-latch post, or the door edgethat meets the door-latch post,next to the driver's seatingposition.The Gross VehicleWeight must never exceed theGross Vehicle Weight Rating.
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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.
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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 ratedfor 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 (internalor 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 tireswith 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:
1. Determine the combined weightof the driver and passengers thatwill be riding in your vehicle.
2. Subtract the combined weightof the driver and passengers fromXXX kg or XXX lb.
3. 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.)
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4. Determine the combined weightof luggage and cargo being loadedon the vehicle. That weight maynot safely exceed the availablecargo and luggage load capacitycalculated in Step 3.
5. 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 andluggage 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 capacityto carry that much weight. Inmetric units, the calculation wouldbe: 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.
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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 unloaded
vehicles. 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.
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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 or trailer.
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 (page38).
You can also find information inthe RV & Trailer Towing Guideavailable at your authorizeddealer, or online.
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RV & Trailer Towing Guide Online
http://www.fleet.ford.com/towing-guides/Website
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 (5.6meters²) 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
7700 lb (3493 kg)27200 lb(12338 kg)19500 lb(8845 kg)4.88
5500 lb (2500 kg)26000 lb(11793 kg)20500 lb(9299 kg)5.38
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Maximum trailerweightMaximumGCWRMaximumGVWRRear axleratio
4000 lb (1814 kg)26000 lb(11793 kg)22000 lb(9979 kg)5.38
7700 lb (3493 kg)29700 lb(13472 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
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ESSENTIAL TOWING CHECKS
Follow these guidelines for safe towing:
•Do not tow a trailer until you drive yourvehicle at least 1,000 mi (1,600 km).
•Consult your local motor vehicle lawsfor towing a trailer.
•See the instructions included withtowing accessories for the properinstallation and adjustmentspecifications.
•Service your vehicle more frequently ifyou tow a trailer. See your scheduledmaintenance information.
•If you use a rental trailer, follow theinstructions the rental agency givesyou.
Another chapter of this manual containsload specification terms found on the tirelabel and Safety Compliance label andinstructions on calculating your vehicle'sload. See Load Limit (page 38).
Remember to account for the trailertongue weight as part of your vehicle loadwhen calculating the total vehicle weight.
Hitches
Do not use a hitch that either clamps ontothe bumper or attaches to the axle.
Distribute the trailer load so 10-15% of thetotal trailer weight is on the tongue.
Weight-Distributing Hitches
WARNING
Do not adjust a weight-distributinghitch to any position where the rearbumper of the vehicle is higher thanit was before attaching the trailer. Doingso will defeat the function of theweight-distributing hitch, which may causeunpredictable handling, and could resultin serious personal injury.
When hooking-up a trailer using aweight-distributing hitch, always use thefollowing procedure:
1.Park the loaded vehicle, without thetrailer, on a level surface.
2.Measure the height to the top of yourvehicle’s front wheel opening on thefender. This is H1.
3.Securely attach the loaded trailer toyour vehicle without theweight-distributing bars connected.
4.Measure the height to the top of yourvehicle’s front wheel opening on thefender a second time. This is H2.
5.Install and adjust the tension in theweight-distributing bars so that theheight of your vehicle’s front wheelopening on the fender is approximatelyhalfway between H1 and H2.
6.Check that the trailer is level or slightlynose down toward your vehicle. If not,adjust the ball height accordingly andrepeat Steps 1-6.
7.Lock the bar tension adjuster in place.
8.Check that the trailer tongue securelyattaches and locks onto the hitch.
9.Install safety chains, lighting and trailerbrake controls as required by law or thetrailer manufacturer.
Safety Chains
Note:Never attach safety chains to thebumper.
Always connect the safety chains to thehook retainers of your vehicle hitch.
To connect the safety chains, cross themunder the trailer tongue and allow enoughslack for turning tight corners. Do not allowthe chains to drag on the ground.
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