SERVICE MANUAL FOR FORD F550 RD1350F
Contents
1. 1220x4 ZN krona Not shown D710242 INSPECTION amp MAINTENANCE Perform a thorough visual inspection of the suspension to ensure proper assembly and to identify broken parts and loose fasteners each time the vehicle suspension is serviced Do the following during an inspection Fasteners Using a calibrated torque wrench check that all the fasteners tightened to the proper torque Wear and Damage Inspect components of the suspension for wear and damage Look lor bent or broken components Replace all worn or damaged components Operation Check that all components move freely through the completo turning are CAUTION Reyco Granning recommends replacing any damaged or out of specification components Reconditioning or field repairs of major rear Suspension components is not allowed Note Refer to Section 1 for identification of components NOTE Reyco Granning recommends the use of a maintenance pit or full vehicle Lift during the inspection of components WARNING Never work under a vehicles sip or fall over and cause serious personal i ported by only a jack Jacks can jury Always use safety stands Height Control Valve Inspection and Adjusting Suspension Ride Height The height control valve and linkage should be checked regularly for proper clearance operation and adjustment The ride height of the rear suspension is the distance from2. Note Wear pattern will indicate ride height D Balance ar replace tires possible cause s Consult tire rear axle alignment D Adjust ride height to specified manufacturer for guidance Improper mismatched tires betting land wheel Align rear axle to specified Khrust angle 9 Install correct tire and wheel fombination ehicle rolls side to side D Shock absorbers worn D Replace shock absorbers as Excessively 2 Shock eye bushings worn feeded 5 Axle U holts are loose D Chock and replace as needed Loose or worn Spring Beam Tighten sce previous torque Pivot connection hant or replace as required D Loose ar worn Spring Beam 1 Tighten see previous torque Pivot bushing or replace as required 9 Check for air leal including the Replace as required height control valve 9 Check height contral valve and replace as required Vehicle ride is too harsh andlor Shock absorbors worn D Replace shock absorbers as suspension contacte stops Incorrect ride height faceted excessively 5 Vehicle overloaded D Adjust ride height to specified 1 Air spring supply lines leaking betting br obstructed B Chock wheel loads and correct Vehicle system air pressure fas needed below specification JD Check air line connections and 6 Jounce bumper in air spring fremove obstructions worn or broken Chock air pressure and correct D Air Suspension not turned fas needed
3. Defective Height Control 6 Chock and replace air spring as alveo kreauired lo Height Control Linkage D Turn on air suspension isconnected or damaged 9 Replace height control valve as Renttach or replace as wed ehe ride ts too olt ID Shock absorbers worn Replace shock absorbers as Incorrect ride height needed D Adjust ride height to specified ee 17 D710242 TROUBLE SHOOTING SYMPTOMS POSSIBLECAUSES REMEDIES Suspension does not maintain Air leak Check connections with soapy Fide height b Internal leak in height control water solution and repair or lve replace as needed Height control valve linkage D Check height control valve and ose place as required D Air spring chafed or warn Check and tighten linkage as eed D Check air spring and replace asl eed eae jc aes ee fc rege Nae Mica nese tan thas eae Rage paar Fe Tehran ET 18 710242 4 SYSTEM 9930 AIR SYSTEM WITH KNEELER VALVES 9 19 710242 4 SYSTEM 9930 AIR SYSTEM WITH KNEELER VALVES Le 20 710242 4 SYSTEM 9930 AIR SYSTEM WITH KNEELER VALVES QUARE HEAD 1 Airline tubing should be 1 4 D O T plastic airline tubing The tubing ends must
4. Shock Absorbers Cheek stad mount and Tock nur torque X shocks for signs of fluid leak broken eve ends lose fastenera or worn x x x x X X x fx bushings Connection Cheek mut torque Wheels Check lug nut torque x x x xix x x Air Compressor Check air compressor compartment or kis s Ix Eel enclosure for proper airflow and venting illad d ala Rear Alignment Inspect after first 1000 3000 miles XL Air Fittings and Air Inspect for air leaks using soapy water x Lines solution Tnspect for signa of chafing cracking or x x x x X X Continue to perform specified maintenance every 12 000 miles jour vehicle s owner s manual for instructions regarding the maintenance of wheels and Wheel lug nuts must be retightened to proper torque specifications as per the vehicle or chassis manufacturers Owner Guide 15 D710242 INSPECTION amp MAINTENANCE Maintenance Record Name of Owner address of Owner Date of Purchase Name and Address of Dealer Medal of Vehicle Tehicle Identification Number suspension Model Number Suspension Serial Number RD1350F Tnspection and Maintenance Date Mileage Servis Performed Tem 16 D710242 TROUBLE SHOOTING CAUSES T REMEDIES T ren weer ou quickly or heya Tres incorrect prome D Put air premore ln Es reed ons E Tiren out of balance k
5. the correct nominal diameter thread pitch lt length and finish Figure 6 Grade Markings on Lock 13 D710242 INSPECTION amp MAINTENANCE Reyco Granning Recommended Torque Specifications ltem Assembly Fastener Torque Ft lbs 1 Spina Bown Pira Conneeton OEM HEX FLANGE HEAD Mann 250339 mbe 3 ter A Sng Paa er to Frama CEEE an Foliow procedures and nested in Dodge Maonanco Manual Torque values listed above apply only Reyco Granning supplied fasteners are used For fi regarng component feplacamem or echnical sarvien cal 1 30575 0500 D710242 INSPECTION amp MAINTENANCE Maintenance Schedule GENERAL SERVICE TO BE PERFORMED MILEAGE IN MAINTENANCE THOUSANDS r2 2a Be as eo 72 sa 6 Spring Beam Pivot Check bl argue x x Connection Taspet fr contact batons Spring Beam and Hanger XIX IRI XX x p fr Bushing wear Ape Tnapect Tar proper clearance T wm all around Check upper mount mar and Tower AT y or signs of chafing or wae SSESESE3 Check fr air line Biting torque Test for nir ea sing man water y TED Va ime sien Hg fy ir Pitings and CCP Tnapeet for signa of chafing cracking or x x x 1x wear
6. Kit Air pressure sensing may also be performed by and OEM installed interface control panel Operation of the Reycofiranning AURGLIDE drive axle suspension utilizing an automatic height control system is reached through various control panels Depending upon options included with the suspension system the control panel should be operated as follows Before operating the vehicle Switch the power to ON if OFF Make sure the Exhaust Inflate switch is in the Inflate position if the suspension is ao equipped I equipped check that the Low Pressure Warning Light and Buzzer is ot The vehicle is ready for operation To exhaust the system ifthe suspension is equipped with an exhaust option Make sure the vehicle is parked Move the Exhaust Inflate switch to the Exhaust position When exhausted switch the power to Gf desired Although the air suspension master power switch can be left ON ReyeoGranning recommends turning the system off while the vehicle is parked for an extended period if the Suspension system is not switched through the vehicle ignition switch This will avoid running down the battery 8 710242 INSPECTION amp MAINTENANCE 12 D710242 INSPECTION amp MAINTENANCE E y Love Spring Pad
7. assemblies and the axle wedge assemblies must be attached properly tothe axle seats with no space between of them Make sure they are parallel to each other Position and suppor the axle at ride height Torque spring beam pivot bolts to 380 ft bs sure there is no space between the wear tower assemblies and the spring beam assemblies and they are parallel to each other Verify the clip plate wear towers are equally spaced on both sides from the wear blocks ard located approximately 090 to 120 away front the wear blocks If not adjust axle location and or plate assembly locations to achieve this Refer to drawing sheet 1 section Torque u bolt nuts item 6868 to 250 torque these AXLE ALIGNMENT NOTE An improperly aligned axle will result in premature wear of vehicle s tres and suspension wear pads A criss cross pattern must be used to 10 REBOUND STRAP INSTALLATION 10 10 1 Materials 2 Rebound Strap 8 75 5449 2 Spacer 2 94 6573 2 Spacer 120 7132 2 Hex head bolt 20 x 2 75 8455030 2 Hex head bolt 20 x 5 00 8274318 4 Lock nut 12 20 89422302 2 Flat Washer Y2 118 Instructions Install the rebound straps item 5449 to the backing plate assemblies using the available holes and items 6573 8274318 118 amp 89422302 See drawing sheet 3 for proper installation Torque 89422302 to 90 ft lbs Install the lower end of the rebound strap
8. be cut straight and insert the full depth into the fittings otherwise leaks will result Check all connections for leaks Protective airline loom is recommended 710242 5 SYSTEM 9932 AIR SYSTEM WITHOUT KNEELER VALVES 2 710242 5 SYSTEM 9932 AIR SYSTEM WITHOUT KNEELER VALVES 710242 5 SYSTEM 9932 AIR SYSTEM WITHOUT KNEELER VALVES Airline tubing should be 1 4 D O T plastic airline tubing The tubing ends must be cut straight and insert the full depth into the fittings otherwise leaks will result Check all connections for leaks Protective airline loom is recommended 24 710242 AB SYSTEM K706859 AIR SYSTEM WITH KNEELER VALVES PING TANKS amp WIRE HARNESS 25 710242 AB SYSTEM K706859 AIR SYSTEM WITH KNEELER VALVES PING TANKS amp WIRE HARNESS 26 710242 AB SYSTEM K706859 AIR SYSTEM WITH KNEELER VALVES PING TANKS amp WIRE HARNESS 1 Airlinen should be 1 4 D O T plastic airline tubing 2 The tubing ends must be cut straight and insert th
9. may need to be turned on to activate this switch Exhaust Inflate Switch IE the system is equipped with an optional kneeler exhaust valve s the control panel will have an Exhaust in late switch Moving the switch to Exhaust position exhausts all air from the ai springs While the switch isin the Exhaust position the air springs will remain deflated Exhausting air from the air springs may be required to assist in maintenance and lower the rear of the vehicle to assist in loading Caution Only operate the exhaust feature While the vehicle is parked Never exhaust the system while the vehicle is in motion To inflate the air springs place the switch in the Inflate position Gauges Lights Buzzers As an option the Air Pressure Warning LightBuzzer it may be installed The gage wi indicate ar tank pressa Ifai pressure nls below 20 ek warning ight and eee will activate Do not operate the vehicle n thi The huzzeclght wil olf one 40 pul ni pressure reached The 5016 Control Panel Assembly with Power ON OFF only Included with the 9932 Air Control Kit The 3008 Control Panel Assembly with Power ON OFF and Kneeler Dump Valve Switches Also shown is 1069 Air Pressure Gauge 0 160 and the S401 Alm Light Buzzer The 5008 Control Panel Assembly is included with the 9930 Control Kit The 1069 Gauge and 5401 Lighu Buzzer are included in the optional 5703 Warning
10. 0 753 1060 for information on the latest version of this manual You must follow your company safety procedures when you service or repair the suspension Be sure you read and understand all the procedures and instructions before you begin work on the suspension Reyco Granning uses the following types of notes to give warning of possible safety problems and to give information that will prevent damage to equipment WARNING A warning indicates procedures that must be follan exactly Selous personal jury can aeter he precei le ot A CAUTION caution indicates procedures that must be followed exactly Damage to equipment suspension components and personal injury can occur the procedure is not followed NOTE note indicates an operation procedure or instruction that is important for correct service Some procedures require the use of special tools for safe and correct service Failure to use these special tools when required can cause personal injury or damage to suspension components The latest revision of this publication is available online at http www Reyco Granning com Reyco Granning Suspensions has developed this service manual to aid in the maintenance of Reyco Granning s rear suspensions General Notes The following table lists the various models and their respective capacities Model Tapaciy Tale Capacity RDISSOF 13 500 lbs 13 00 Ibs 6 710242 GENERAL IN
11. 2000 is the highest international quality standard and is recognized worldwide by all major countries and corporations To obtain certification company must undergo a series of rigorous audits to remain certified and ensure consistent quality standards are being maintained This quality standard was developed by the International Organization of Standardization Tuthill Corporation is a privately held manufacturing company with facilities worldwide Tuthills corporate offices are located in Burr Ridge Chicago Illinois Granning was founded in Detroit MI in 1949 and became part of Fluidrive Inc in 1985 Reyeol was founded in Springfield MO in 1924 as Reynolds Mfg Co and assumed the Reyeo Industries Inc name in 1956 Reyeo Canada was established in 1963 with the opening of a facility located in Grimsby Ontario followed by the opening of another Reyco facility in Mt Vernon MO in 1973 Most recently in 2003 the Reyco Springfield facility merged with the Reyco Mt Vernon location to consolidate the Reyeo line of products Tuthill Corporation purchased Fluidrive Ine in December 1998 and then purchased Reyco Industries Inc in February 1999 to offer Reyco Granning suspension solutions Reyeo Granning air and steel spring suspensions are sold to truck trailer and specialty vehicle OEM s as well as truck equipment distributors products aro designed tested manufactured and marketed by members of the Revco Granning team Cong
12. FORMATION Overloading the suspension may result in adverse ride and handling characteristics 10 19 NCE 1 313 REBOUND Note The ride height is for the completed vehicle with body and components See table below for sions See following pages for the above views correct vehicle dim m ceGraming mes wawaq Roper eda mage end cae Ride height is measured from the axle center iat and level to the bottom of the vehicle frame at the rear of vehicle behind the axle as shown Identification The suspension model and serial number are stamped on an aluminum tag that is riveted to the driver side upper Hanger Weldment See Figure 2 The serial number is used by Reyco Granning for control purposes and should be referred to when servicing the suspension See Figure 1 Figure 1 Suspension Identification 7 710242 CONTROLS Descriptions of the typical controls are found below Note some original equipment manufactures OEM will use controls integrated into the instrument panel While the appearance may differ the operation and description are consistent with below Power ON OFF Switch This master switch turns the power off and on to the compressor and other electrical components of the drive axle suspension To activate the compressor and other electrical components move the switch 1070 The vehicle ignition switch
13. Reyco SERVICE MANUAL FOR FORD F550 Gr canning RD1350F SUSPENSION SUSPENSIONS m TUTH 710242 REVA 03 11 10 TABLE OF CONTENTS Introduction 3 Company Profile 3 About This Manual 6 General Information 7 Identification 7 Controls 3 Parts List 9 Inspection amp Maintenance 2 Height Control Valve Inspection amp Adjustment 12 Torque Specifications 13 Maintenance Schedule 15 Maintenance Record 16 Troubleshooting 17 Air Controls 19 4 System 9930 Height Control Valve System with kneeler valves 19 5 System 9932 Height Control Valve System w o kneeler valves 22 AB System 706859 Height Control Valve System w ping tanks and knceler valves 25 QR System K709308 Quick Recovery Air System 28 9905 Auxiliary Ping Tank Kit 31 Replacement Instructions and Warranty 32 Installation Instruction 3 Installation Check Sheet 37 2 D710242 INTRODUCTION Company Profile Tuthill Transport Technologies is the Line of Business name arising from the acquisition and merger of two companies in the heavy duty suspension and offroad axle industries FIuidrivew Ine of Brookston IN which included the Granningr brand and ReycoW Industries In operating in Springfield MO Mt Vernon MO and Grimsby ON Canada Tuthill Transport Technologies is certified to the internationally recognized ISO 9001 2000 Standard This certification includes ReyeoCranning operations ISO 9001
14. Suspensions or which do meet ReyeaGranning Suspensons quay and performance Spacticalons improper installation maintenance repair misuse or abuse mcuding but not mitad overloading or authorized alterations or modifcatons THE ABOVE WARRANTIES ARE SUBJECT TO THE WARRANTY LIMITATIONS AND REMEDIES SECTIONS OR R YCOGRANNINGS SUSPENSIONS INVOICE TERMS AND CONDITIONS This poly supersedes any previous waranty statements sonos VY 710242 INSTALLATION INSTRUCTIONS Referenced Drawings RD1370F8 Suspension Installation Drawing D9931 Refer to drawing D9931 for all item numbers and views specified in this document Height Control Valve Installation Drawing 0710132 General Follow the step by step procedure below in the order given for proper installation Read the instructions thoroughly before starting installation CAUTION minimum of 3 inches clearance must be maintained between tailpipe and air spring This may require alteration and or relocation of the tailpipe modifications to the tailpipe must be in accordance with vehicle manufacturer s recommendations See Body Builders Layout Book VEHICLE PREPARATION 1 Secure vehicle by blocking the steering axle wheels and supporting the frame aft of drive axle 2 Raise drive axle to clear tires of ground and support axle 3 Remove tires 4 Remove the rear helper spring brackets and the leaf springs with rear shackles NOTE Retain a
15. amp 702605 01 Install items 302 amp 702605 01 in the jounce bumper holes See drawing sheet 2 for proper installation Torque 702605 01 to 80 lbs 2 Wear Pad 2 1 Materials 1 Wear pad left 702149 01 1 Wear pad right 702149 02 8 Flat countersunk hex screw 3 8 24 x 2 00 298 8 Locking flange nut 3 8 24 304 2 2 Instructions Install wear pads items 702149 01 amp 702149 02 to the backing plate assemblies using the available holes and the fasteners listed above See drawing sheet 3 for proper instalation Torque to 100 in lbs 3 Upper Air Spring Pad Installation 3 1 Materials 2 Upper air spring pad assembly 709872 01 8 Flange head bolt 1 2 13 x 1 75 276 8 Locking flange nut 1 2 13 308 2 Reinforcement channel 703095 01 3 2 Instructions Installthe reinforcing channel item 703095 01 inside of the frame rail Install upper air spring pad assemblies items 709872 0 tusing the previously drilled holes and the fasteners listed above See drawing sheet 3 for proper installation Torque to 90 ft lbs 4 Cross Member Installation 4 1 Materials 1 Cross Member 702140 01 6 Flange head bolt 38 16 x 1 25 302 6 Locking flange nut 3 8 16 702605 01 4 2 Instructions Install the cross member item 702140 01 to top of upper air spring pad assembly using the fasteners listed above See drawing sheet 3 for proper installation To
16. e full depth into the fittings otherwise leaks will result Check all connections for leaks 3 Protective airline loom is recommended 710242 QR SYSTEM K709308 QUICK RECOVERY AIR SYSTEM 28 710242 QR SYSTEM K709308 QUICK RECOVERY AIR SYSTEM 29 710242 QR SYSTEM K709308 QUICK RECOVERY AIR SYSTEM 1 Airline tubing should be 1 4 D O T plastic airline tubing The tubing ends must be cut straight and insert the full depth into the fittings otherwise leaks will result Check all connections for leaks 3 Protective airline loom is recommended 30 710242 9905 AUXILIARY PING TANK pese Sample tank mounting Installation on units Installetion on units without dump volves with dump valves Notes 1 For best results the ping t 2 should be mounted as close to the spring as possible If the air system contains kneeler dump valves the above tank system must be inserted between the kneeler valve and the spring 710242 REPLACEMENT INSTRUCTIONS amp WARRANTY R SERIES Beplacement Instructions Reyco NOTE Due 1 the nature ot senice to be petemedit is room
17. ected in the installation with loom to prevent chafing or 37 710242 INSTALLATION CHECK LIST TT Verily check valve orientation out of the compressor head arrow 1s To point away Tom compressor D Air Compressor installed in a well ventilated enclosure and wired correctly positive to terminal labeled amp negative to terminal labeled A2 NOTE Enclosure must protect the compressor from adverse environmental conditions see compressor deca Failure to do so may void warranty Air compressor higher than tank assy Check air compressor operation ide height Remove excess linkage rod to prevent readjustment Height measured ar system for leaks using soapy water solution Ping Tanks Ping tanks installed close as possible to the ar springs All airline fitings to be installed with Permatex sealant or equivalent on threads Teflon tape is not lo be used D Airline SAE DOT brake line and protected in the installation with loom to prevent chafing or pinching on sharp edges 9 Additional Observations and Comments 38 710242
18. ed to provide the ideal increase in volume and proper airov A side effect in adding ping tanks is possible increase in air spring inflation times With a ping tank system installed che larger volume of which improves the spring rate must be refilled each time the system is kneeled ReycoGranning ping tank kits have been designed to minimize this effect while improving the ride Finally optional warning light sensors or air pressure gauges may be plumbed to either the air reservoir tank or to the air springs These warning devices will indicate possible probleme with the air suspension system prior to operation Gauges that are plumbed to the reservoir tank will read between 95 and 125 psi as described above Any air gauge that is plumbed directly to the air spring will show fluctuations depending on axle loading and vehicle operation 5 D710242 INTRODUCTION About This Manual This publication is intended to acquaint and assist maintenance personnel in the maintenance service repair and rebuild of the Granning RD1350F Rear Suspension It is important to read and understand the entire Technical Procedure publication prior to performing any maintenance service repair or rebuild of this product Reyco Granning Air Suspensions reserves the right to modify the suspension and or procedures and to change specifications at any time without notice and without incurring obligation Contact customer service at 80
19. fst end user Ihe purchase date is not established to ReycoGranning Suspensions satis action he date of manufacture determined from the suspension system s serial number shal be used the effective staring dte When adusiment sought under tis warranty lam shouldbe made by contacting the saributor or manufacturer who instated suspension who wil coordinate fx documentation parts shipment atc recy with ReycoGranning Suspensions NOTE ReycoGranningS Suspensions must be notified in writing using a warranty claim form promptly upon claimed detect INSTALLER AND END USER RESPONSIBILITIES The Distibutorinstaleris responsible for instaling he product according to ReycaGranring Suspensions approved procedures the tale 1 als response eher directly or aug agent dealer or providing a coy e PeyeoGrannng Suspensions waranty and owners manual fo the end user and Ir ne eng user of proper use Service maintenance requred fr Ihe product The end user s responsible for operating nepecting and maintaining he suspension according to the nstuctons in he ReycoGranning Suspensions owners manual and any applicable owner s manual and fr properly instructing al operators maintenance personnal NOTE Warranty may be denied for improper installation LIMITATIONS AND EXCLUSIONS No warranty applies in the event ot use of components parts andcr accessories nt obtained from or approved by ReycoGranningB
20. ge based on axle loading The pressure changes in the air spring but the height remains the same thereby giving the optimum ride regardless of load system with a single height control valve supplies both air springs simultaneously while dual height control valve system supplies each air spring separately The dual system increases the sensitivity of side to side distributions of axle loading A schematic of each system can be found in the Air Control System Parts List section See Air Control System Control Panels and Operation sections Located on the bottom of the air tank assembly is a heated moisture ejector valve The valve is heated jp eliminate ice build up This valve automatically releases accumulated water from the air tank every time the driving brake is used Bach time the driver presses the brake pedal the ejection valve releases abit more water insuring a well drained system There is a small round button port in the center of the underbelly of this valve Press this button with your finger to manually drain accumulated water from the tank when the vehicle is turned of Optional kncelor or exhaust valves may be plumbed between the air springs and the height control alve When power is applied to these valves they shut off air supply from the height control valve to the air springs and exhaust air from the air springs As long as power is supplied to the kneeler valve usually through the exhaust positio
21. ll fasteners for air suspension installation 5 Remove the jounce bumpers from the frame rails 6 Clear al electric fuel and hydraulic lines in area of frame of air suspension mounting NOTE Do not brake or disconnect any electrical fuel or hydraulic lines FRAME DRILLING 1 Wear Use backing plate assemblies items 702150 01 amp 702150 02 as templates Drill four 431 holes and one 0 531 per side See drawing sheet 4 for proper location on frame Use existing holes where available and drill out if necessary 2 Upper Air Spring Pad Location Use upper air spring pad assemblies items 709872 01 as templates Drill four 0 531 holes per side See drawing sheet 4 for proper location on frame Use existing holes where available and drill out if necessary 3 Height Control Valve Use the height control valve items 5608 as templates Drill two 250 holes per side See drawing sheet 4 for proper location on frame Use existing holes where available and drill out if necessary AIR SUSPENSION MOUNTING 1 Backing Plate Assembly Installation 1 1 Materials 1 Backing plate assembly left 702150 01 1 Backing plate assembly right 702150 02 33 2710242 INSTALLATION INSTRUCTIONS B lange head bolt 98 16 x 1 25 302 8 Locking flange nut 38 16 702605 01 1 2 Instructions Install backing plate assemblies items 702150 01 amp 702150 02 using the previously drilled holes and the fasteners 302
22. mended Granhing mat a qusleq mechani do wore PrTD Limited Warranty RoycoGranning warrants ts P Series suspensions to be tree rom defects In material and woekmanship under use and service nthe U S Main Structural Components 24 months or 50 000 mies whichever occurs frst Defined as hangers beams cip platos and axe saddes Other Air Suspension Components 12 months or 24 000 miles whichever occurs fret valves fasteners Bushings and oler components rot stated spacticaly when povided by RycaGranminge and other fabricated metal components ReycaGranning provides no warranties on components such as axes air Springs contol ar compressors bakes shock absorbers and hub and drum assembles except to he extent B any waranty provided to ReycoGranning Suspensions by the manufacturer of such components Labor 6 months or 12 000 mies whichever comes test Labor be alowed on ReycaGranningB Suspensions estimated ime to make repairs at maximum rae of 50 00 per hour As used eran he tam normal use and serves means that the suspension wl be installed operated inspected and maintained In accordance wih applcable ReycoGranning Suspensions owner s manual and any applicable vehicle mars manual or metuctons Adjustments The starting date for the above warranty period is he date of purchase of the suspension by the frst end user Proof ot Such dats he responsibly of the
23. n of the infltelexhaust switch the air springs will remain deflated With the air springs deflated the rear end of the vehicle will remain lowered or kneeled with the chassis resting on positive jounce stops Removing power to the knecler valve allows to flow from the height control valve to the air springs and shuts off exhaust from the air spring thus inflating the air springs The rear end of the vehicle is automatically raised to the proper ride height Systems with dual height control valves require two kneelor valves one between each air spring and height control valve if the exhaust option is equipped To further improve the ride of an air suspension ReycoGranning offers a dual ping tank kit One ping tank is added to each side between the air spring and the height control valve or kncelor dump valve if installed Those 200 cubie inch ping tanks effectively increase the volume of the air spring without 4 710242 INTRODUCTION having to utilize a larger air spring The spring rate of a system is directly proportional to the volume of the air spring The larger the air spring volume the lower the spring rate thus the better the ride However the amount of air flowing between the air spring and ping tank can limit the effective air volume of the system Therefore adding larger and larger ping tanks may not result in significant changes in the suspension spring rate ReycoGranning ping tank kits have been design
24. nstallation Clip plate installed with correct orientation D U bolts installed and torqued correct at ride height Torque measured at T Clearance between wear tower and wear block correct Clearance measured at 5 Air Spring Installation Ai spring position correct and installed without any twist D Adequate clearance around air spring to prevent chafing puncturing or overheating om exhaust Recommend 1 clearance around air spring to prevent chaling or puncturing Recommend min 3 clearance to any part of tho exhaust system 6 Height Control Valve HCV Installation D HCV positioned correct with clearance around ar springs D Linkage installed correctly with clearance around air springs D Linkage isthe correct length 10 197 1 Linkage length is D Airlines installed to proper port on HCV see Height Control Valve Installation Drawing 0710132 7 Air Kit Installation Air tank assy installed correctly Automatic moisture emitter on bottom of tank Dump Valve kneeler valve installed with exhaust port down AIL line fitings to be installed with Permatex sealant or equivalent on threads Teflon tape is not lo be used pinching on sharp edges Electrical ine wired correctly with 10 AWG min wire and protected to prevent cutting or chafing NOTE Improper wire size may cause compressor Airlines and wiring installed without loops or bends D Airlino SAE DOT brake line and prot
25. oes not maintain constant ride height under varying load conditions 3 710242 INTRODUCTION By maintaining a constant ride height the horizontal center of gravity steering geometry and even the headlights remain level The benefits of an air ride are 1 Driverlpassenger comfort 2 Protection of cargo chassis and body components 3 Reduced stress fatigue to chassis frame Greater stability and control A unique feature to the ReycoGranning AIRGLIDE drive axle air suspension system is the wear towers and wear blocks Those time proven components prevent unwanted side to side lateral motion without the use of costly and complex track rods Air Control System A primary subsystem of a ReycoGranning AIRGLIDEN drive axle air suspension system is the air control system Depending on the actual system used the air control system will provide the ability to automatically control the amount of air pressure in the air springs thus automatically control the suspension ride height The major componente of an automatic control system consist of air compressor reservoir tank height control valve and air spring The operation af the system is simple The compressor supplies air to the tank which maintains the air pressure between 95 125 psi Air from the tank is supplied to the height control valve The height control valve supplies air to or depletes air from the air spring via a mechanical linka
26. r air spring pad assembly RH 700107 02 2 Hex head bolt 1 2 20 x 4 00 8455034 2 Hex head bolt 1 2 20 x 3 30 127 4 Lock nut 1 2 20 89422302 2 Air spring assembly 8896 2 Hex head bolt 1 2 13 x 1 00 100048 P1 2 Nut 1 2 13 8120978 2 Slotted lock washer 1 8120384 2 Jam nut 34 16 8219758 82 Instructions Place lower spring pads items 700107 01 amp 700107 02 on spring beams Drop hex head items 127 amp 8455034 down in the two inside holes in lower air Spring pad assemblies and tighten using lock nuts 89422302 Torque to 80 ft bs Place air spring assembly item 8896 on lower air spring pad Install hex head bolt item 100048 P1 up through back hole in lower air spring pad assemblies and attach air Spring assemblies tem 8896 Position air spring assemblies so that the top studs line up with their mounting holes in the upper air spring pad assemblies See drawing sheet 3 for proper installation Torque item 100048 1 to 35 ft lbs Install air spring assemblies to the upper air spring pad assemblies using the available holes and nuts items 8120378 8120384 amp 8219758 See drawing sheet for proper instalation Torque to 35 tts 9 Axe Alignment 9 1 Materials None 9 2 Instructions 35 710242 INSTALLATION INSTRUCTIONS sure the spring beam assemblies are positioned properly The spring beam assemblies must be attached properly to the axle wedge
27. ratulations on your purchase of a RescoGranning AIRGLIDE drive axle air suspension system Founded in 1948 by one of the pioneers of air suspensions ReycoGranning Air Suspensions supplies drive and tag axle air suspension systems to a variety of original equipment manufactures as well as to the aftermarket industry The R Series trade named AIRGLIDE are utilized by OEM customers in applications such as recreational vehicles shuttle bus trailer chassis builders Type I and ambulances and class 3 through 8 truck applications This product line now exceeds 25 models that cover all major chassis utilized in the above applications Suspension Desc ReycoGranning AIRGLIDE drive axle air suspension system is a replacement rear suspensions system that consista of an air control system air springs trailing arm beams brackets and mounting hardware In general the air suspension works by maintaining constant ride height by adjusting the amount air pressure the air springs This allows the vehicle to remain level regardless of loading By varying the amount of air pressure in the springs a comfortable ride is maintained whether lightly or heavily loaded This is the major difference between an air suspension and a conventional steel spring suspension The steel spring suspension is usually designed for heavily loaded condition and thus yields a harsh ride in lightly loaded conditions In addition the steel spring suspension d
28. rque to 35 ft bs 5 Spring Beam Installation 5 1 Materials 2 Spring beam assembly 8891 2 Existing pivot bolt 2 Existing nut 5 2 Instructions Install spring beam assemblies item 8891 to the hangers using the fasteners listed above Do NOT tighten at this time 6 Axle Wedge Assembly Installation 6 1 Materials 1 Axle wedge assembly left 709971 01 1 Axlo wedge assembly right 709971 02 2710242 INSTALLATION INSTRUCTIONS 6 2 Instructions Install axle wedge assemblies tems 709971 01 amp 709971 02 in between axle seats spring beam assemblies See drawing sheet 3 for proper installation Be sure axle wedge assemblies are positioned correctly they must be centered on spring seats ard parallel to them for proper axle alignment 7 Wear Tower Assembly Installation 7 1 Materials 1 Wear tower assembly LH 8877 1 Wear tower assembly RH 8878 4 U bolt 701740 01 8 Flat washer 3 4 812x1 475 150 103003 8 Lock high nut 3 4 16 6868 2 Lower clip plates 8886 7 2 Instructions Install wear tower assemblies item 8877 amp 8878 onto the spring beam assemblies using the fasteners listed above install lower plates 8886 See drawing sheet 3 for proper installation Do NOT tighten at this time 8 Lower Air Spring Pad Assembly and Air Spring Assembly Installation 8 1 Materials 1 Lower air spring pad assembly LH 700107 01 1 Lowe
29. s to the wear tower assemblies using the available holes and items 845503089422302 7132 amp 89422302 Torque item 89422302 to 90 ft lbs 11 Hetght Control Valve Installation 11 11 1 Materials 2 Height control valve 5608 2 Height control linkage and studs 709953 04 4 Hex head bolt 420 x 75 8180020 4 Nut 20 Gr5 8120375 4 SLW t 8120380 4 Lock Nut 8454750 Instructions Install height control valve 5608 using 8180020 8120375 amp 8120380 Torque to 8 ft lbs Install linkage 709953 04 using 8454750 Torque to 10ftibs 36 710242 INSTALLATION CHECK LIST Installer Installation Date inspector Inspection Date Model Number Suspension Serial Number VIN Number Ar Kt Options Relerenced Drawings Installation Drawing 09931 Height Control Valve KtD710132 1 Frame Drilling LI Hole position as required on installation drawing Note Holes must be diled not torched 2 Wear Block Installation D Backing piate installed Mounting bolts properly torqued Torque measured at D Wear block mounting bolts not overtorqued wear block not warped Torque measured at 3 Beam installation Pivot bots reinstalled correctly D Pivot bolt torque correct at ride height Torque measured at 0 Beam alignment pin seated corecty in spacer D Spacer alignment pin seated correctly in axle mount seat 4 Clip Pk te and U Bolt I
30. the bottom of the chassis frame to the center of the axe Properly adjusted ride height results in corre suspension travel and alignment The ride height should not be adjusted to adjust chassis rake angle check ride height Park the vehicle on a level surface Tf the suspension is equipped with kneelers lower the suspension Re inflate the air suspension Allow the Suspension to settle Set the parking brake and block the drive wheels to prevent vehicle movement 5 make sure nothing is interfering with the travel of the height control valve 6 Measure the distance from bottom of chassis to center of axle on each side The ride height should be 10 19 inches adjust ride height 1 Loosen nut on side of HCV arm 2 Slide short arm up or down as needed 3 Torque nut to 30 to 45 in Ihs 12 D710242 INSPECTION amp MAINTENANCE 4 Repeat steps 1 thru 3 on other side 5 Recheck ride height as stated in previous section TORoUR TO 3045 Figure 2 Height Control Valve TORQUE SPECIFICATIONS Most threaded fasteners are covered by specifications that define required P 2 hardness These specifications are carefully considered in initial selection of Figure 5 Grade Markings on Bolts fasteners for a given application To assure continued satisfactory vehicle Im performance replacement fasteners used Tasas Should be of the correct strength as well as
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