Owner`s Manual - Link Manufacturing
Contents
1. i a F was e Alen Zk REMOVE OEM REAR HANGER BRACKETS REMOVE THESE 6 RIVETS IF PRESENT UPPER AIR SPRING BRACKET WILL BE MOUNTED HERE 1 I PASSENGER SIDE VIEW SHOWING COMPLETION OF PREP WORK FOR INSTALLATION 1 3 DRIVER SIDE ASSEMBLY Review Figure 3 3 amp Parts List Drawing Section 10 to acquaint yourself with the various parts of the UltraRide suspension Fasten the FRONT HANGER to the frame using 6 1 2 x 1 3 4 UNC FLANGE BOLTS and 6 1 2 UNC TOP LOCK FLANGE NUTS supplied with kit See Table 10 1 for appropriate Torque Place the frame mounted LATERAL CONTROL ROD BRACKET to the inside of the frame Fasten this bracket to the frame using 4 1 2 x 1 3 4 UNC FLANGE BOLTS and 4 1 2 UNC TOP LOCK FLANGE NUTS with bolts protruding through from the inside out Place The OE Jounce Bumper back in place on the outside of the frame as it was See Table 10 1 for appropriate Torque Position the DRIVER SIDE TRAILING ARM on top of the axle with front bushing mounted to the front surface of the HANGER BRACKET Secure loosely with 2 3 4 X 3 UNC FLANGE BOLTS AND 2 3 4 UNC FLANGE NUTS See Fig 3 3 Fasten the UPPER AIR SPRING BRACKET and AIR SPRING to the frame using 6 1 2 X 1 3 4 UNC FLANGE BOLTS and 6 1 2 UNC FRAME MOUNTED LATERAL OE JOUNCE BUMPER CONTROL BRACKET TOP LOCK FLANGE NUTS Orient the bolts so2. 2 2 DRIVER SIDE DISASSEMBLY 1 With weight taken off the rear springs as noted in pre installation checklist remove the rear bolts from the rear leaf spring hanger bracket Remove the front spring hanger bracket DO NOT re use the bolts that mount the hanger bracket or the leaf spring itself New fasteners are provided and must be used to achieve proper clamp load on the hanger See Figure 2 1 Refer to GM Documents 800862 and 1202795 2 Remove existing U bolts that attach the axle to the leaf spring After this is done the axle spring and hanger will be loose Remove only the leaf spring from the axle DO NOT re use existing fasteners such as the U bolts or nuts 3 Grind remove 6 rivets that connect the aft of the axle cross member to the frame This cross member will be located 9 72 inches aft of the axle centerline See Figure 2 2 for location of these rivets WARNING If truck has C5V042 option the fuel tank will not be in this location but will be mounted further back on the truck If this is the case holes will need to be drilled using the provided paper template Part 80001039 4 Remove the OEM shock absorbers and retain the mounting fasteners for later use 5 Remove the OE jounce bumper bracket from the frame on Driver side only These Frame holes will be shared with Lateral Control Bracket mounted to the inside of the frame REMOVE OEM FRONT KZ _ HANGERBRACKETS We DISCARD BOLTS MEN
3. any loose or worn components CHECK AFTER EVERY 30 000 MILES Check arm pivot bushings and lateral control rod bushings for wear replace if worn 19 Guideline Driveline Angles After vehicle build is complete the driveline angles must meet the following rules both at unloaded and fully loaded vehicle attitudes Rule 1 The NET OPERATING ANGLE at any individual joint must be at least 1 2 degree and not to exceed 3 degrees The net operating angle at any individual joint on an F Super Duty F250 F350 F450 or F550 must not exceed 4 degrees The preferred maximum angle is 2 degrees The NET OPERATING ANGLE e at any one joint is the combination of the joint angles in both the side view and the plan top view This NET OPERATING ANGLE e equals 2 Plan View Side View Angle Angle 2 By example using Figure 1 The NET OPERATING ANGLE at JOINT ea gt 0 5 lt 3 0 or lt 4 0 The NET OPERATING ANGLE at JOINT B eb 2 gt 0 5 angle x angle b lt 3 0 or lt 4 0 The NET OPERATING ANGLE 2 2 gt 0 5 at JOINT C ec angle x angle c lt 3 0 or lt 4 0 Fig 1 JOINT A CENTER angle BEARING angle x w Z TRANSMISSION QI iL wees d H HK A PLAN VIEW COUPLING SHAFT VIEW JOINT B JOINT DRIVESHAFT SIDE VIEW 20 Guideline Driveline Angles Continued Rule 2 The combination of NET O
4. as high as 12 degrees But to get a vehicle to operate successfully above 3 degrees often requires larger universal joints double cardan or constant velocity joints or restrictions on operating speed A reduction in universal joint life becomes noticeable when they are operated at more than 3 degrees if precautions are not taken That having been stated the F Super Duty series of trucks F250 F350 F450 and F550 can tolerate angles up to 4 degrees However maximum angles of 2 degrees are preferable for all vehicles Two shafts connected with a single cardan joint and turning at a constant speed with no joint angle have no angular acceleration that could cause a vibration When there is an angle between them and the input shaft is turning at a constant speed the driven shaft is forced to continuously accelerate and decelerate twice per revolution creating a vibration If the speed changes are small the vibration is not objectionable The guidelines in this appendix limit driveline angular acceleration to a maximum of 400 radians per second per second This is the requirement for all Ford light trucks SAE specifies 500 Some modified drivelines have been measured at over 11 000 radians per second per second causing driveline failures at very low mileage DRIVELINE ANGLE MEASUREMENT Driveline angle measurements should be made with the vehicle supported by the tires and resting on a level surface Avoid hoisting a vehicle by the frame since t
5. attachments as well as required or necessary clearance for suspension components axles wheels tires and other vehicle components to ensure a safe and sound installation and operation Installer is responsible for advising the owner of proper use service and maintenance required by the product and for supplying maintenance and other instruction as readily available from Link Mfg INSTALLATION NOTES LI Need for proper Torque value is indicated by wrench symbol values will be found in Table 10 1 in Maintenance section of the instructions Failure to maintain proper torque can cause component failure potentially resulting in accidents with consequent injury Proper tightening of U Bolt nuts and mounting nuts are required for proper operation b No drilling of new frame holes is required for installation of the suspension Mounting of the air control system will require holes to be drilled into the frame where necessary Exhaust modification will be needed during the installation and is the responsibility of the Installer The GMC C5500 UltraRide with 15K rear axle and the 19K rear axle are shown throughout these installation instructions The only difference between the suspensions for either axle depends on which shock is used Both will follow the same sequence and setup as depicted NOTE When completing the installation of the UltraRide on the GM chassis please refer to appropriate sections of the GM Service Manual for additional
6. requirements PRE INSTALLATION CHECKLIST Check the vehicle wheel alignment prior to installation to ensure no precondition already exists record the information for verification Remove the attached body if applicable Remember to disconnect all electrical connections to the body and fuel filler tube before removing the body The installation can also be completed using a lift to raise the vehicle If using a lift chassis body removal may not be necessary but removal of rear wheels will aid in installation Refer to GM Document 812944 and 827666 If not using a lift block the front wheels and apply the emergency brake so the vehicle cannot roll Jack up the rear frame of the truck in order to unload the rear leaf springs or use an overhead hoist It may also be advantageous to place jack stands under the rear axle itself This will take some of the weight off the axle and help to keep it from moving during disassembly The stands should not raise the tires off the ground Install the suspension in the listed sequence Install one side of the suspension at a time First install the driver side completely then install the passenger side Removal of the rear wheels may aid in installation if using a lift but it is not necessary Measure amp record the wheelbase and centering dims before beginning installation CENTERING x gt DIM CENTERING DIM 2 WHEELBASE DIM
7. time the truck is being serviced However immediate corrective action should be taken if a serious malfunction occurs See Exploded Assembly on following page for details CAUTION If maintenance or service is to be done on the air system be sure to drain all air from system Serious injury could occur if components are removed while system is full of air Note It is important to release any moisture contained within the air reservoir on a daily basis This can be done by pulling on the cable attached to the drain valve See Figure 7 3 Not releasing the moisture on a regular basis will cause the drain valve to not operate properly and may cause the valve to malfunction Excess moisture in the system can also cause premature failure of other components as well as the tank itself INSTALLATION amp MAINTENANCE CHECK LIST Check and document OE rear axle alignment Set Design Height to 11 0 inches Verify suspension function via dump and re inflation Check for air leaks and system integrity Check clearances throughout suspension motion range Check driveline angle 4 wheel alignment After installation measure and record wheelbase and centering dims below Fig 10 2 CENTERING DIM CENTERING DIM 2 WHEELBASE DIM 2 15 UltraRide c5500 PARTS LIST ITEM PART NO DESCRIPTION 28 14882002 58 HARDENED WASHER ZINC PLATED 8 1495000
8. LATERAL CONTROL ROD BRACKET onto axle as shown in Fig 6 1 Mount Loosely to axle using 4 5 8 UNF SQUARE U BOLTS 8 5 8 SAE HARDENED WASHERS and 8 5 8 UNF HIGH NUTS Note If Truck uses Dana 5150 axle 22k GVW truck 4 SPACERS Part No 80001035 will be needed between this bracket and the axle itself as shown in the Parts List 2 Check to make sure that the axle itself is centered between the frame rails by measuring from the outside of the driver and passenger side frame rails to the inside of the wheel hub or tire installed mount the LATERAL CONTROL ROD between the two sides using 2 5 8 X UNF BOLTS and 2 5 8 UNF TOP LOCK NUTS See Table 10 1 for appropriate Torque See Figure 6 1 for details Make sure when tightening that the lateral control rod connection maintains its transverse orientation 5 3 Once both sides of the air suspension and both LATERAL CONTROL ROD BRACKETS are 4 With Truck set at Design Height See Fig 9 1 tighten 8 5 8 UNF HIGH NUTS that were assembled loosely in step 1 See Table 10 1 for appropriate Torque NOTE Inspect Lateral Control Rod for any interference with other components paying close attention to clearance with any flexible components such as brake and fuel lines LATERAL CONTROL ROD AXLE MOUNTED LATERAL CONTROL ROD BRACKET UPPER LATERAL CONTROL ROD MOUNT BRACKET 10 7 AIR CONTROL SYSTEM ASSEMBLY AN CAUTION Route all airline away from exhaust moving parts and sharp o
9. Link Mfg Ltd 223 15th St N E Sioux Center IA USA 51250 2120 712 722 4868 Fax 712 722 4779 QUESTIONS CALL CUSTOMER SERVICE 1 800 248 3057 www linkcmp com vitraRias Chassis Air Suspension OWNERS MANUAL GMC C5500 15K AND 19K GVW CHASSIS CAB 2004 NEWER MODELS Link Part No 8 000050 PROUDLY INSTALLED BY COMPANY INSTALLER SIGNATURE DATE 80000988 SEP 1 2015 INSTALLATION INSTRUCTIONS INDEX 1 0 INTRODUCTION 2 0 DRIVER SIDE DISASSEMBLY 3 0 DRIVER SIDE ASSEMBLY 4 0 PASSENGER SIDE DISASSEMBLY 5 0 PASSENGER SIDE ASSEMBLY 6 0 LATERAL CONTROL ROD 7 0 AIR CONTROL SYSTEM 6 0 ELECTRICAL 9 0 FINAL INSPECTION amp OPERATION 10 0 SERVICE amp MAINTENANCE 1 INTRODUCTION IMPORTANT It is important that the entire installation instructions be read thoroughly before proceeding with suspension installation WARNING A correct installation must result in the suspension and axle being loaded within the range specified by axle and suspension manufacturers Please check vehicle specifications and intended usage to insure axle will be within Gross Axle Weight Rating GAWR No alteration of any suspension component is permitted PRODUCT INSTALLER RESPONSIBILITIES LI Installer is responsible for installing the product in accordance with Link Mfg specifications and installation instructions Installer is responsible for providing proper vehicle components and
10. PERATING ANGLES throughout the whole driveline must cancel Itis preferred that the NET OPERATING ANGLES at either end of a shaft be within 1 degree of each other However at a minimum the following formulas must be satisfied for sufficient cancellation to occur For a 1 shaft driveline 2 joint lt 3 0 or lt 4 0 For a 2 shaft driveline 2 2 2 3 joint ea eb ec lt 3 0 or lt 4 0 as exampled in Figure 1 For a 3 shaft driveline 4 joint 30 00 40 Rule 3 The center bearing mounting bracket surrounding the rubber insulator must be 90 3 degrees to the center bearing In other words no more than 3 degrees of mis alignment can be absorbed by the rubber surrounding the center bearing See Figure 2 Fig 2 No more than 3 degrees of mis alignment allowed A Ensure that u joints are in line to within 2 degrees B Ensure matching alignment arrows between slip yoke and tube shaft A lt 2 Degrees Observe alignment arrows stamped on parts If there are no alignments marks then add them before disassembly to ensure proper phasing alignment of shaft and yoke GUIDELINE DRIVELINE COMPONENT PHASING 21 MINIMUM UNIVERSAL JOINT OPERATING ANGLE A slight angle is required to prevent universal joints from brinelling Therefore a minimum operating angle of degree is required MAXIMUM UNIVERSAL JOINT OPERATING ANGLE Universal joint operating angles can be quite high sometimes
11. U BOLT M20X250 79X46 o em 2 1103 0505 15 14142424 3 4 X 3 UNC FLANGE BOLT GR 8 O amp P 18 1477 2006 5 8 UNF HEX TOP LOCK NUT GR C O amp P 19 1480 1604 12 UNC TOP LOCK FL NUT GR G O amp P 1480 2002 HEX TOP LOCK FLANGE NUT M20 X 2 5 CLASS10 86 21 1480 2404 Du UNC TOP LOCK FL NUT GR G O amp P 24 19060016 8 lt 6 THE 15K AXLE USES SHOCK ABSORBER 1210 0506 AND THE 19K AXLE USES 1210 0511 16 UltraRide 5500 UltraRide TROUBLESHOOTING GUIDE COMPONENT POSSIBLE PROBLEM CORRECTIVE ACTION Remove fitting and apply fresh joint compound Air leaks Reinstall fitting but Do Not Over tighten Do not use Teflon tape A Improper height Ge D valve linkage to maintain proper air spring Air Springs B Ar leakage B Replace air spring Inspect valves to insure drive bearing notch is located correctly The driver side valve notch on SUPPLY port side of valve passenger Air spring s will not inflate when weight is added to side on SUSP port side If not loosen lever he chassis screw but do not remove completely and pull lever from drive bearing rotate drive Height Control Valve OR bearing until the drive bearing notch is in the correct position and re secure lever by tightening lever screw Air spring s will not deflate when weight is removed rom the chassis See Fig 11 3 amp 11 4 for orie
12. bjects Be careful not to crimp the edges of the tubing When installing the airline fully insert into fitting and give a slight pull to seat properly and to be sure airline will not pull out Note If your vehicle has a frame body that does not allow the air control system box to be located as shown you will need to determine another location for mounting and then drill the necessary holes If installing on the frame underneath the cab make sure it is mounted as high on the frame as possible to allow for ground clearance below the tank T Mount the Air Control Box to the side of the frame in the specified location Use 4 5 16 X 1 3 4 UNF FLANGE BOLTS and 4 5 16 UNF TOPLOCK FLANGE NUTS to fasten the Air Control Box to the frame placing the rubber isolators between the box and frame Do not tighten the fasteners so tight that back of the Air Control Box contacts any bolts protruding from the frame See Table 10 1 for appropriate Torque Route the 6 airlines as shown in Figures 7 1 7 2 amp 7 3 2 1 Route AIRLINE 1 from the supply port of the Height Control Value to the lower outlet port of the Air Reservoir Solenoid 2 2 Route AIRLINE 2 from the top Elbow in the Height Control Valve to the elbow in the Air Reservoir Solenoid 2 3 Route AIRLINE 3 amp 4 from the Run Tee on the del port of the Height Control Valve to the Air Springs Place supplied corrugated loom onto all airlines Use supplied cable ties and airline c
13. his will distort the chassis enough to make any measurements inaccurate MATCH MOUNTING DRIVESHAFTS TO THE REAR AXLE Runout is measured on OEM rear axle input shafts and the maximum measurement is marked with a yellow dot on the yoke or pilot bearing flange The OEM driveshafts are also marked with a yellow dot on the light side When the parts are assembled the marks are aligned to aid the overall system balance Vehicle modifiers should look for these dots and maintain this match when the drivetrain is reassembled after modification Remanufactured or modified driveshafts should also have their light sides matched to the yellow dot DRIVELINE VIBRATION DAMPERS Driveline vibration dampers are sometimes added to driveshafts or axles to reduce noise vibration and harshness NVH If the chassis has these devices when it is received they should be retained on the modified chassis USE OF DOUBLE CARDAN UNIVERSAL JOINTS FOR GREATER DRIVE ANGLES In general the use of these joints can allow increased drive angles up to as much as 8 degrees However when used at the rear of a coupling shaft a double cardan universal joint will prevent cancellation from occurring at the forward end of the shaft Therefore the single cardan joint must still be maintained at less than 3 degrees or 4 degees for the F Super Duty series GENERAL COMMENTS It is good practice for any chassis that will have a driveline modification to measure and record the dr
14. iveline angles in each of the following conditions for later comparison a The chassis as first received from Ford note that the drive angles may not conform exactly to this bulletin in this incomplete condition b The completed vehicle unloaded The completed vehicle loaded to GVWR with maximum front GAWR d The completed vehicle loaded to GVWR with maximum rear GAWR 22
15. lectrical system installation and parts list 9 FINAL INSPECTION amp OPERATION Recheck all fasteners for specified torque Double check all electrical connections and wire routings Remove all jacks and air system up by either using the fill valve on the air tank or by starting the vehicle and switching the compressor switch to ON Note the maximum allowable pressure in the air tank is 120 psi It is recommended to fill the air tank using the supplied Schrader valve so that the compressors are not taxed too much by running for a long period of time Check for proper operation of the height control valves With one end of the valve linkage disconnected rotate the valve arm down 45 air should exhaust from the air springs Rotating the valve arm up 45 should cause the valve to fill the air springs JOUNCE BUMPER CONTACT AT DESIGN HEIGHT 11 00 INCHES DESIGN HEIGHT 13 5 10 11 Measure the Design Height of the air springs The height should be as shown in Figure 9 1 and measured at the middle of the air spring To adjust the design height see Figures 9 2 9 3 disconnect one end of the valve linkage and adjust accordingly Turn the plastic ball end joint to change the length of the linkage increasing the length will increase the Design Height and vise versa Tighten the lock nuts on the valve linkage when complete See Figure 10 3 Set the design height by the following seque
16. lips to secure airline and to keep it away from all hazardous objects See Figure 7 4 for details FROM DUMP PORT ON AIR KIT TO AIR SPRINGS AIRLINE 2 AIRLINE 3 amp 4 ADJUSTABLE HEIGHT CONTROL VALVE LINKAGE FROM AIR SUPPLY PORT ON AIR KIT AIRLINE 1 LEVER ARM 11 AIR CONTROL KIT AIR CONTROL SCHEMATIC AIRLINE 2 AIRLINE 3 amp A TO AIR SPRINGS PILOT SUPPLY PORT AIRLINE 5 d em AIR SUPPLY TEE HEIGHT CONTROL VALVE SOLENOID TO AIR CONTROL VACNE AIRLINE 1 KIT AIR TANK AIRLINES AIRLINE 1 12 8 ELECTRICAL SYSTEM CAUTION All wiring should be routed and secured neatly to avoid any functional or visual issues Under hood and under body wire routings should be clear of sharp edges 3 4 inches minimum and direct sources of heat 4 inches minimum Wiring located in the passenger compartment should be routed away from high tempera ture areas over the muffler Wiring should not be routed through wheel well areas where it may be damaged by tire or road debris and it should not be routed over the exhaust sys tem Wiring should not contact the brake lines or fuel lines Disconnect the battery cables before servicing any electrical components See GM Documents 173237 and 173165 Refer to the GMT560 Best Practices Manual for more information on tying into electrical components Refer to AIR CONTROL KIT OWNERS MANUAL for further details on e
17. nce 1 Deflate the passenger side air bag by disconnecting the linkage from the arm 2 With the driver side linkage connected measure the design height and adjust accordingly by the methods mentioned above 3 Once the design height is set for the driver side repeat the same steps for the passenger side including deflat ing the driver side air bag Once the design height is set reconnect the linkages Jostle the sus pension up and down and then allow it to come back to design height Recheck the initial meas urement and adjust if needed Note this procedure to set design height can only be done when empty or under light load Move the suspension through its entire range of motion by inflating and deflating the air springs to achieve full travel Check for any interferences with the lateral control rod axle shocks ex haust frame brake lines especially on the driver side fuel lines etc Reconnect the valve linkage to the lever Note if contacting the brake lines hand caulk the line to make clear ance at least 1 4 between the brake line and the axle brackets IMPORTANT Check all fittings and airlines for air leaks Reinstall the chassis body if applicable IMPORTANT During servicing check tightness of all fasteners and for any air system leaks See Table 10 1 for torque specifications Immediate corrective action should be taken if mal functions occur After all final checks are complete it is recommended to complete a f
18. ntation details B Replace valve Shock Absorber Insufficient damping effect Replace shocks N Loose nuts on lateral control rod bolts A Tighten securely Lateral Control Rod B Worn bushings B Replace lateral control rod 18 GMC C5500 OWNERS GUIDELINES The UltraRide suspension needs no lubrication and little maintenance However immediate cor rective action should be taken if a serious malfunction occurs CAUTION If maintenance or service is to be done on the air system be sure to drain all air from the system Serious injury could occur if components are removed while system is full of air PRODUCT OWNER RESPONSIBILITIES LI Owner is solely responsible for pre operation inspection periodic inspections maintenance and use of the product as specified in the particular LINK MFG instructions available by prod uct model except as provided in this warranty and for maintenance of other vehicle compo nents Of particular importance is the re torque of fasteners including axle u bolts torque rod bolts and track rod bolts This re torque must be performed within 90 days of the suspension being put in service Owner is responsible for down time expenses cargo damage and all business costs and losses resulting from a warrantable failure The UltraRide Chassis Air Suspension is fully automatic in controlling the height of the chassis No manual intervention to control air pressure or ride height is needed du
19. ring the course of op eration The Compressor Switch must be on for the compressors to operate During difficult starting cir cumstances i e extremely cold weather it is recommended to turn the compressor switch off until the vehicle is running so it will not draw current from the battery The compressors are controlled by the pressure switch located in the Air Control Box This switch automatically turns the compressors on when the tank pressure falls below 100 psi and turns them off at 120 psi The Low Pressure Warning Light indicates a severe drop in tank pressure below 60 psi Im mediate corrective action should be taken to determine the cause of air loss Compressor switch should be turned off if Low Pressure Warning Light is on and remains on even after the compressors have run for a normal period of time NOTE The Low Pressure Warning Light could come on briefly when the Dump feature is being used It is important to release any moisture contained within the air tank on a daily basis This is done by pulling on the attached release cable for approximately 5 seconds See Air Control Kit Owners Manual for location of this cable Not releasing the moisture on a regular basis will cause the drain valve to not operate properly CHECK AT EVERY VEHICLE SERVICE INTERVAL Check Design Height ZA Q Check for air leaks around fittings CHECK AFTER THE FIRST 1000 MILES a Recheck amp tighten any loose fasteners Check for
20. that they point away from the vehicle Tighten the 3 4 UNC JAM NUT on the lower AIR SPRING STUD that goes through the TRAILING ARM See Table 10 1 for appropriate Torque Install TRAILING ARM to axle using new supplied U BOLTS Use the OE upper leaf spring assembly plate and lower stabilizer bar plate as they were used in the original leaf spring setup See Fig 3 3 Tighten in a crisscross pattern See Table 10 1 for appropriate Torque appropriate Torque Torque the 4 3 4 X UNC FRONT TRAILING ARM front pivot bolts See Table 10 1 for HEIGHT CONTROL UPPER AIR SPRING BRACKET AIR SPRING TRAILING ARM 8 AFTER BOTH SIDES HAVE BEEN INSTALLED SECTIONS 3 4 5 6 COMPLETE THE FOLLOWING STEPS 9 Install the new SHOCK ABSORBERS in the same orientation as factory using hardware provided 10 IMPORTANT Route all brake cables away from the air spring and other moving components may need to be tied or slightly repositioned in order to accommodate this 4 PASSENGER SIDE DISASSEMBLY 1 Repeat Section 2 for the passenger s side of the truck 5 PASSENGER SIDE ASSEMBLY 1 Repeat Section for the side of the truck 2 Check all clearance points and all alignments See Figure 5 1 for details AN IMPORTANT Double check all fasteners for proper torque UPPER AIR SPRING BRACKET OE JOUNCE FRONT HANGER TRAILING ARM 6 LATERAL CONTROL ROD 1 Position AXLE MOUNTED
21. ull four wheel alignment and drive line angle check The pages following the installation instructions describe the proper method for checking driveline angles Note improper driveline angles may have a detrimental effect on ride u joints and transmission If any driveline vibration or out of spec angle meas urement occurs use factory axle seat shims to modify driveline angle Kneeling Operation Moving the switch ON to Dump will exhaust all air from the air springs and lower the rear of the vehicle approximately 3 4 inches Air springs will inflate when the switch is returned to the OFF position WARNING Do not drive the vehicle while the Dump Switch is on and the air springs are deflated TORQUE TABLE table 10 1 LOCATION FASTENER TORQUE FRAME MOUNTED FRONT HANGER 1 2 UNC NUTS 90 120 FT LBS FRAME MOUNTED UPPER AIR SPRING BRACKET 1 2 UNC NUTS 90 120 FT LBS FRAME MOUNTED LATERAL CON TROL ROD BRACKET 1 2 UNC NUTS 90 120 FT LBS AXLE MOUNTED LATERAL CONTROL HIGH NUTS FOR 5 8 ROD BRACKET UNF U BOLTS 130 170 FT LBS LATERAL CONTROL ROD 5 8 UNF NUTS 180 240 FT LBS AIR SPRING STUD 3 4 UNC JAM NUTS 40 50 FT LBS FLANGE NUTS FOR TRAILING ARM M20 U BOLTS 250 325 FT LBS FRONT TRAILING ARM PIVOT BOLTS 3 4 UNC NUTS 280 375 FT LBS AIR CONTROL BOX 9 16 UNF NUTS 15 20 FT LBS 14 10 SERVICE amp MAINTENANCE The UltraRide suspension needs no lubrication and little maintenance The following components should be checked at the
Download Pdf Manuals
Related Search