Ford F 750 Owners Manual
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In areas where road salt is used, disassemble the joints of each aluminum component and inspect for salt build-up and presence of chlorine that can cause aluminum particles to flake off and enter the engine combustion chambers. If evidence of corrosion is found (usually at the pipe connections), use a wire brush to clean the inside of the pipes and inside the rubber hoses. If pitting is evident at the joint ends of the intake pipes, use Motorcraft Silicone Gasket and Sealant TA-30 to seal the joints. Make sure no excess material, which can pull into the engine, is on the inside of the pipes. If the service condition of the pipes, hoses or clamps is questionable, replace the defective part(s). Make sure to clean all dust and debris out of the pipes and couplings with a clean, damp rag before reassembly. Chassis-mounted Charge Air Cooler Visually inspect the core assembly for debris and clogging of external fins with the engine off. Before engine operation, remove any debris blocking the core. • Turbocharger-to-charge air cooler. • Charge air cooler-to-intake manifold pipe. • Mounting bracket. • Chassis-mounted charge air cooler core. Inspect air intake piping: • Check for accumulation of salt deposits (where applicable). If present, disassemble and clean the complete air intake piping system. If pitting is evident on the intake piping, use Motorcraft Silicone Gasket and Sealant TA-30 to seal joints against leakage. • Check for loose hoses and clamps. • Check for ruptured or collapsed hoses. • Check air cleaner housing for cracks. EXHAUST SYSTEM INSPECTION Note: If your vehicle is equipped with a catalytic converter or muffler, do not blend waste oil with diesel fuel. Operate only on ultra-low sulfur (less than 15 parts per million sulfur) diesel fuel with a cetane value of 45 or higher. If your diesel engine is equipped with a catalytic converter, it is important to review the maintenance schedule to make sure proper functioning of the catalytic converter. Also, take precautions not to damage the catalytic converter when servicing your engine or storing your vehicle. 218 F-650/750 (TBC) , enUSA, First Printing Maintenance
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BRAKE SYSTEM INSPECTION WARNING Always wear a respirator approved by the National Institute of Occupational Studies of Health (NIOSH) or Mine Safety and Appliance (MSA) during all brake service procedures. Wear the respirator from removal of the wheels through assembly. Never use compressed air or dry brushing to clean brake parts or assemblies. Clean brake parts and assemblies in open air. During assembly, carefully place all parts on the floor to avoid getting dust in the air. Use an industrial vacuum cleaner with a HEPA filter system to clean dust from the brake drums, backing plates and other brake parts. After using the vacuum, remove any remaining dust with a rag soaked in water and wrung until nearly dry. Never use compressed air or dry sweeping to clean the work area. Use an industrial vacuum cleaner with a HEPA filter system and rags soaked in water and wrung until nearly dry. Dispose of used rags with care to avoid getting dust in the air. Use an approved respirator when emptying vacuum cleaners and handling used rags. Worker clean-up: Wash your hands before eating, drinking or smoking. Vacuum your work clothes after use and then launder them separately, without shaking them, to prevent fiber dust getting into the air. Your vehicle is equipped with non-asbestos brake linings. However, exposure to excessive amounts of brake material (whether asbestos or non-asbestos, fiberglass, mineral wool, aramid or carbon) may be a serious health hazard. Air Brakes WARNING Do not manually adjust the automatic slack adjusters to correct excessive push rod stroke as it may result in reduced brake effectiveness and a vehicle crash. Excessive push rod stroke indicates that a problem exists with the automatic adjuster, with the installation of the adjuster, or with foundation brake components that manual adjustment does not remedy. Seek service from a qualified facility for excessive push rod stroke. Inspection and Adjustment Establish a regular schedule for periodic cleaning, lubrication and adjustment inspection based on vehicle use. Exact maintenance intervals are difficult to predetermine due to vehicle applications and operating conditions. If you are uncertain of the proper schedule for your vehicle, contact an authorized dealer. Regular inspections should include: • Periodic checking (every service interval) of push rod travel or brake adjustment. This is essential for effective braking. Brake chamber push rods on original equipment chambers now incorporate an orange paint marker near the base of the push rod 219 F-650/750 (TBC) , enUSA, First Printing Maintenance
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as a stroke indicator to aid in adjustment checks. If the push rod is clean and the brakes are out of adjustment, you can see the orange marker protruding from the chamber when the brakes are applied. • Checking the brake lining (every service interval). When brake linings or blocks wear within 0.063 in (1.6 mm) they must be replaced. • Periodic checking (every service interval) of the air compressor filter. Check the filter minder and when the indicator is near or on the red line marked Service, replace the filter and reset the service filter minder. Do not back off or disconnect the front brakes so that they are less effective, letting the rear brakes do all the stopping of your vehicle. Do not overlook the brakes on the trailer either. Brake condition on the trailer is just as important as the tractor. Proper brake balance on trucks and tractor-trailers is essential for effective braking. Once a year, inspect the entire brake system: • Rubber components for deterioration. A qualified technician should inspect these components and replace them as necessary. Replacement intervals vary according to the severity and length of vehicle service. • Condition of brake drums, brake chambers and slack adjusters. • System for air leaks. • Hose or pipes for rust, damage and deterioration. • Operation of service and parking brakes. Periodically inspect parts such as air brake chamber diaphragm, air compressor and air cleaner. Replace any parts if you can consider them unserviceable. Air Dryer Climactic conditions affect performance of desiccant or after-cooler type air dryers. You must establish a maintenance schedule for each specific operation. The use of an air dryer on a vehicle does not eliminate the need to drain the air reservoirs periodically. Inspect for moisture in the air system by opening reservoirs, draincocks or valves and checking for presence of water. The presence of small amounts of water due to condensation is normal and is not an indication that the dryer is not functioning properly. Replace or rebuild the desiccant cartridge when you determine that the desiccant is contaminated and does not have adequate water absorption capacity. The desiccant change interval may vary. A general recommendation is to replace the desiccant every 12 months (yearly). If experience has shown that extended or shortened life has resulted for a particular installation, then the yearly interval can be increased or decreased accordingly. Draining the Air Brake Reservoir WARNING Failure to drain air brake reservoirs can result in a reduction or loss of braking ability due to fluid accumulation in the reservoir and/or possible freeze-up during cold weather. Completely drain all the air brake reservoirs daily by opening the draincock at the ends of the tanks. (Where accessible. Pull-chains are used when the drains are undercab or otherwise inaccessible.) Close the draincock after draining. Manually drain 220 F-650/750 (TBC) , enUSA, First Printing Maintenance
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any air tanks equipped with automatic moisture ejector valves, as required, to maintain a dry air system. Contact an authorized dealer if you are unsure of the air reservoir locations or the draining procedure. Hydraulic Brakes Establish a regular schedule for periodic cleaning, lubrication and adjustment inspection based on vehicle use. Exact maintenance intervals are difficult to predetermine due to vehicle applications and operating conditions. If you are uncertain of the proper schedule for your vehicle, contact an authorized dealer. Regular inspections should include: • Checking the brake lining (every service interval). Establish inspection intervals that provide for lining replacement before damage to the disc occurs. Excessive lining wear may expose the backing plate to the disc causing scoring of the disc faces. A qualified technician should perform this inspection and keep to instructions provided by the service manual. Hydraulic brake systems are power-assisted. There is a great reduction in braking capabilities without engine assist. • Proper fluid level. The level should be at the bottom edge of the ring on each reservoir fill port. Do not fill the master cylinder to the top of the reservoir. If fluid level requires attention to maintain a proper master cylinder level, this is an indication of either severe operation (pad wear) or fluid leakage. A more frequent and thorough brake inspection is required. • Brake lines, hoses and fittings. Repair or replace brake line tubes, hoses or fittings as required. Inspect these components every 4,000 mi (6,000 km) for the following. • Lines for kinks, dents, corrosion or rupture. • Hoses for abrasions, kinks, soft spots or rupture, collapse, cracks, twists or loose frame supports. When replacing a hose, be sure there is adequate clearance to the hose to avoid an abrasion to the new hose. • All connections for leaks. Driveline Parking Brake WARNING Use wheel chocks and exercise caution when inspecting under the vehicle. A vehicle roll-away could result in property damage, personal injury or death. A qualified technician should adjust the parking brake and keep to the instructions in the service manual. 221 F-650/750 (TBC) , enUSA, First Printing Maintenance
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AXLE INSPECTION Front Axle Maintaining the front axle alignment to specifications is very important. A qualified technician should check and maintain the alignment. Regular inspections should include: • Toe-in inspection and adjustment (if necessary), particularly with radial tires. • Checking for proper tightness of axle mounting U-bolt nuts, attaching or mounting bolts and nuts. • Checking the axle for damage, binding, worn parts and adequate lubrication. • Checking the kingpins for excessive wear. Also, perform this check during other scheduled maintenance, for example as tire rotation or service, wheel bearing service and alignment. See the workshop manual for proper procedures. Toe-in It is essential to maintain correct toe-in and tire pressure for optimum tire wear. Inspecting steer axle tires in the first 3,000– 10,000 mi (5,000– 16,000 km) generally shows if tires are wearing normally. Rapid outside shoulder wear on both tires indicates too much toe-in. Rapid inside shoulder wear on both tires indicates too much toe-out. In P&D-type service, there can be a left-to-right steer tire tread life differential up to 40% depending on routes and other variables. Follow the tire manufacturer's recommended cold inflation pressure for the tire size, load range (ply rating) and steer axle loading typical for their operation (each steer axle tire equals ½ steer axle loading). Special applications may warrant a setting based on experience with the type of tire operating loads and conditions. Radial tires are more sensitive to toe-in setting than bias ply tires. Fine tuning school bus alignment to line-haul truck standards does not drastically improve tire tread life. STEERING SYSTEM INSPECTION WARNING Failure to maintain the steering system in proper condition can cause reduced steering ability resulting in property damage, personal injury or death. Note: Have any steering problems immediately corrected by a qualified service technician. Ask your service technician to examine the steering mechanism. Only minor adjustments may be necessary. Regular inspections should include: • Checking the tie rod, drag link end clamp bolts and ball joints for proper tightness. • Checking for installation and spread of cotter pins and tightness of nuts at both ends of the tie rod and drag link. • Checking that the pitman arm (steering arm at steering gear) mounting is tight and locked. Check system for leaks or hose chafing. Repair immediately, if necessary. 222 F-650/750 (TBC) , enUSA, First Printing Maintenance
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• Maintaining proper steering gear and power steering pump lubricant levels. • Checking steering column joint bolts and steering linkage, particularly for body-to-chassis clearance. Steering Column Joint Bolts As a good maintenance practice, check steering column joint bolt tightness every 60,000 mi (96,000 km) or annually, whichever occurs first. Do not overtighten the bolts. Hydraulic System Whenever draining and refilling the power steering's hydraulic system for any reason, bleed air from the system before returning the vehicle to service. Failure to bleed the hydraulic system properly can result in degradation of power system performance. Consult an authorized dealer who is aware of the proper procedures for filling and bleeding the system. SUSPENSION SYSTEM INSPECTION Note: Do not adjust air suspension height to any setting other than the specified setting. Altering the height setting changes the driveline angle and may result in unwarrantable component damage, such as transmission component damage. Verify drive axle air suspension height and height control valve performance at engine oil change intervals. Periodically check: • Condition of spring leaves for evidence of fatigue, bending or breakage. • Condition of suspension mounting brackets and bushings. • Torque rod mounting fasteners for tightness. • For proper suspension alignment. Maintain proper alignment at all times. • U-bolts. After the chassis has been operating under load for 1,000 mi (1,600 km) or six months (whichever comes first), the U-bolt nuts must be re-torqued. Re-torque the U-bolt nuts every 37,000 mi (60,000 km) thereafter. Clean and lubricate the U-bolt and nut threads and seats to make sure a like new condition when re-torqueing. See Spring U-Bolt Check (page 224). FRAME AND TOW HOOK INSPECTION Your vehicle's chassis is manufactured with frame rails of either HSLA steel or heat-treated steel. Handle each in a specific manner to make sure maximum service life. Consult the service manual or an authorized dealer before attempting frame repair or modification. It is important, particularly on vehicles that use tow hooks frequently, to inspect the front and rear tow hooks for damage or a loose mounting. REAR AXLE FLUID CHECK Your rear axle may have an optional synthetic lubricant that allows the use of extended service intervals. A tag on the filler plug identifies the use of the synthetic lubricant. Only use a lubricant that meets manufacturer specifications. Only use a lubricant that meets manufacturer specifications. Use of a non-approved rear axle lubricant may cause internal axle component damage. See Capacities and Specifications (page 258). 223 F-650/750 (TBC) , enUSA, First Printing Maintenance
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Checking the Fluid Level 1. Park your vehicle on level ground. 2. Set the parking brake and shift into position neutral (N) or park (P). Turn the engine off. 3. Clean any dirt from around the axle filler plug. 4. Remove the filler plug and inspect the lubricant level. It should be at the bottom of the filler plug opening. 5. Add lubricant, if necessary, through the filler plug opening. 6. Clean and install the filler plug securely. Changing the Fluid Note: Drain the rear axle while the lubricant is warm. 1. Park your vehicle on level ground. 2. Set the parking brake and shift into position neutral (N) or park (P). Turn the engine off. 3. Clean any dirt from around the axle filler and drain plugs. 4. Remove the filler and drain plugs. Drain the lubricant into a suitable container. Dispose of all used automotive fluids in a responsible manner following your local authorized standards. 5. Clean and install the drain plug securely. 6. Add lubricant through the filler plug opening. 7. Clean and install the filler plug securely. SPRING U-BOLT CHECK Check and tighten the U-bolt nuts after your vehicle has been operated under load for 1,000 mi (1,600 km) or six months, whichever occurs first. Thereafter, install new U-bolt nuts and washers every 36,000 mi (58,000 km). Check and tighten the U-bolt nuts with your vehicle at curb height and unloaded. Inspect the U-bolt threads for rust and debris. Clean the threads if contaminated. U-bolt Nut Torque Front Axle Note: Check and tighten the U-bolt nuts evenly using a criss-cross pattern in the following stages. lb.ft (Nm) Stage 40 (60) 1. 90 (125) 2. 170 (225) 3. 240 (325) 4. Rear Axle Note: Check and tighten the U-bolt nuts evenly using a criss-cross pattern in the following stages. lb.ft (Nm) Stage 60 (75) 1. 90 (125) 2. 170 (225) 3. 240 (325) 4. 320 (440) 5. 224 F-650/750 (TBC) , enUSA, First Printing Maintenance
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GENERAL INFORMATION Your Ford or Lincoln authorized dealer has many quality products available to clean your vehicle and protect its finishes. CLEANING PRODUCTS For best results, use the following products or products of equivalent quality: Materials Specification Name - Motorcraft Bug and Tar Remover (U.S.) Motorcraft Dissolvant de goudron et éliminateur d ’insectes (Canada) ZC-42 (U.S. & Canada) - Motorcraft Custom Bright Metal Cleaner (U.S.) Motorcraft Nettoyant pour métal brillant (Canada) ZC-15 (U.S. & Canada) ESR-M14P4-A Motorcraft® Detail Wash (U.S.) Shampooing superfin Motorcraft® (Canada) ZC-3-A (U.S. & Canada) - Motorcraft Engine Shampoo and Degreaser Engine Shampoo and Degreaser ZC-20 (U.S.) - Engine Shampoo Motorcraft Shampooing pour moteur (Canada) CXC-66-A (Canada) - Motorcraft Leather and Vinyl Cleaner (U.S.) Motorcraft Nettoyant pour cuir et vinyle de haute qualité (Canada) ZC-56 (U.S. & Canada) - Multi-Purpose Cleaner Motorcraft Nettoyant multi-usage (Canada) CXC-101 (Canada) WSS-M14P19-A Motorcraft® Premium Windshield Wash Concentrate with Bitterant (U.S.) Liquide lave-glace de haute qualité Motorcraft® (Canada) ZC-32-B2 (U.S.) CXC-37-A/B/D/F (Canada) - Professional Strength Carpet and Upholstery Cleaner (U.S.) Motorcraft Nettoyant professionnel pour sellerie et moquette (Canada) ZC-54 (U.S. & Canada) - Motorcraft Spot and Stain Remover Spot and Stain Remover ZC-14 (U.S.) ESR-M14P5-A Motorcraft® Ultra-Clear Spray Glass Cleaner (U.S.) Motorcraft Nettoie-vitres de qualité supérieure (Canada) ZC-23 (U.S.) CXC-100 (Canada) - Motorcraft® Wheel and Tire Cleaner (U.S.) 225 F-650/750 (TBC) , enUSA, First Printing Vehicle Care
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Specification Name Nettoyant pour roues et pneus Motorcraft® (Canada) ZC-37-A (U.S. & Canada) CLEANING THE EXTERIOR Wash your vehicle regularly with cool or lukewarm water and a neutral pH shampoo, we recommend Motorcraft Detail Wash. • Never use strong household detergents or soap, for example dish washing or laundry liquid. These products can discolor and spot painted surfaces. • Never wash your vehicle when it is hot to the touch, or during strong or direct sunlight. • Dry your vehicle with a chamois or soft terry cloth towel to eliminate water spotting. • Immediately remove fuel spillages, bird droppings, insect deposits and road tar. These may cause damage to your vehicle ’s paintwork or trim over time. We recommend Motorcraft Bug and Tar Remover. • Remove any exterior accessories, for example antennas, before entering a car wash. Note: Suntan lotions and insect repellents can damage painted surfaces. If these substances come in contact with your vehicle, wash the affected area as soon as possible. Exterior Chrome Parts • Apply a high quality-cleaning product to bumpers and other chrome parts. Follow the manufacturer ’s instructions. We recommend Motorcraft Custom Bright Metal Cleaner. • Do not apply the cleaning product to hot surfaces. Do not leave the cleaning product on chrome surfaces longer than the time recommended. • Using other non-recommended cleaners can result in severe and permanent cosmetic damage. Note: Never use abrasive materials, for example steel wool or plastic pads as they can scratch the chrome surface. Note: Do not use chrome cleaner, metal cleaner or polish on wheels or wheel covers. Exterior Plastic Parts For routine cleaning we recommend Motorcraft Detail Wash. If tar or grease spots are present, we recommend Motorcraft Bug and Tar Remover. Stripes or Graphics (If Equipped) Hand washing your vehicle is preferred however, pressure washing may be used under the following conditions: • Do not use water pressure higher than 2,000 psi (14,000 kPa) . • Do not use water hotter than 179°F (82°C). • Use a spray with a 40° wide spray angle pattern. • Keep the nozzle at a 12 in (305 mm) distance and 90° angle to your vehicle's surface. 226 F-650/750 (TBC) , enUSA, First Printing Vehicle Care
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Note: Holding the pressure washer nozzle at an angle to the vehicle's surface may damage graphics and cause the edges to peel away from the vehicle's surface. Underbody Flush the complete underside of your vehicle frequently. Keep body and door drain holes free of debris or foreign material. Under Hood For removing black rubber marks from under the hood we recommend Motorcraft Wheel and Tire Cleaner or Motorcraft Bug and Tar Remover. WAXING Regular waxing is necessary to protect your car's paint from the elements. We recommend that you wash and wax the painted surface once or twice a year. When washing and waxing, park your vehicle in a shaded area out of direct sunlight. Always wash your vehicle before applying wax. • Use a quality wax that does not contain abrasives. • Follow the manufacturer ’s instructions to apply and remove the wax. • Apply a small amount of wax in a back-and-forth motion, not in circles. • Do not allow wax to come in contact with any non-body (low-gloss black) colored trim. The wax will discolor or stain the parts over time. •Roof racks. • Bumpers. • Grained door handles. • Side moldings. • Mirror housings. • Windshield cowl area. • Do not apply wax to glass areas. • After waxing, your car's paint should feel smooth, and be free of streaks and smudges. CLEANING THE ENGINE Engines are more efficient when they are clean because grease and dirt buildup keep the engine warmer than normal. When washing: • Take care when using a power washer to clean the engine. The high-pressure fluid could penetrate the sealed parts and cause damage. • Do not spray a hot engine with cold water to avoid cracking the engine block or other engine components. • Spray Motorcraft Engine Shampoo and Degreaser on all parts that require cleaning and pressure rinse clean. In Canada, use Motorcraft Engine Shampoo. • Never wash or rinse the engine while it is hot or running; water in the running engine may cause internal damage. 227 F-650/750 (TBC) , enUSA, First Printing Vehicle Care