ARB AIRLOCKER RD156 Installation Manual

ARB AIRLOCKER RD156 Installation Manual

Hyundai 9.5", 34 spline, live axle

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RD156
HYUNDAI 9.5", 34 SPLINE,
LIVE AXLE
AIR OPERATED
LOCKING DIFFERENTIAL
INSTALLATION GUIDE

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Summary of Contents for ARB AIRLOCKER RD156

  • Page 1 RD156 HYUNDAI 9.5”, 34 SPLINE, LIVE AXLE AIR OPERATED LOCKING DIFFERENTIAL INSTALLATION GUIDE...
  • Page 2 No liability is assumed for damages resulting in the use of the information contained herein. ARB AIR LOCKER Locking Differentials and AIR LOCKER are trademarks of ARB Corporation Limited. Other product names used herein are for identification purposes only and may be trademarks of their respective owners.
  • Page 3: Table Of Contents

    Table of Contents: 1 Introduction 1.1 Pre-Installation Preparation 1.2 Tool-Kit Recommendations 2 Removing the Existing Differential 2.1 Vehicle Support 2.2 Differential Fluid Drain 2.3 Removing the Axles 2.4 Marking the Bearing Caps 2.5 Checking the Current Backlash Amount 2.6 Removing the Differential Carrier 3 Installing the Air Locker 3.1 Mounting the Ring Gear 3.2 Installing the Carrier Bearings...
  • Page 5: Introduction

    Although your ARB Air Locker comes complete with all the step by step instructions you will need to supplement your vehicle manufacturer’s service manual and install your new differential, ARB recommends that you have your Air Locker installed by a trained professional.
  • Page 6: Tool-Kit Recommendations

     A gasket sealant or replacement gasket for your third member.  A sufficient volume of differential oil to completely refill your housing. (See the ARB Air Locker Operating and Service Manual for recommended lubricants)  A soap and water mixture to test for air leaks.
  • Page 7: Removing The Existing Differential

    Any misalignment of the axle tubes may result in excessive wear and/or failure of your differential and axle shafts. ARB strongly recommends that you have your axle assembly inspected for concentricity and straightness before...
  • Page 8: Marking The Bearing Caps

    2 Removing the Existing Differential Marking the Bearing Caps  Using a small pointed center punch, gently mark the bearing caps in a way that will enable you to know which cap is ‘LEFT’ and which cap is ‘RIGHT’, which way is ‘UP’ and which way is ‘DOWN’. (Fig.1.) ...
  • Page 9: Checking The Current Backlash Amount

    2 Removing the Existing Differential Checking the Current Backlash Amount IMPORTANT: This step is a precautionary measure recommended by ARB due to the fact that some after market ring and pinion sets have been manufactured to run with different backlash settings than those specified by your vehicle manufacturer.
  • Page 10: Removing The Differential Carrier

    2 Removing the Existing Differential Removing the differential carrier  Remove the adjuster nut locking tabs.  Remove the bearing caps.  Loosen the adjuster nuts.  Carefully remove the differential carrier from the housing.  Remove the tapered roller bearings from the differential carrier with a bearing puller.
  • Page 11: Installing The Air Locker

    3 Installing the Air Locker Mounting the Ring Gear  Remove the bolts that hold the ring gear in place.  Using a plastic or copper hammer, tap in a circle around the ring gear to separate it from the differential carrier. ...
  • Page 12: Installing The Carrier Bearings

    3 Installing the Air Locker Figure 4. Installing the Carrier Bearings  Apply a thin film of high pressure grease to the bearing journals of the Air Locker, then press the bearing cones onto the bearing journals as shown in Figure 5. Figure 5.
  • Page 13: Drilling And Tapping The Bulkhead Port

    3 Installing the Air Locker Drilling and Tapping the Bulkhead Port An air line port must be drilled and tapped through the differential housing to mount the bulkhead fitting into.  Mark a spot on the left hand side of the differential, on the land between the mating face and the bearing seat, as shown.
  • Page 14: Assembling The Seal Housing

    3 Installing the Air Locker Assembling the Seal Housing Figure 7.  Make sure the grooves and airway of the seal housing are clean and free from any contaminants (e.g. water, dirt, metal filings, etc.).  Inspect the seal housing O-rings (supplied) for dirt, damage or other conditions which might cause leaks.
  • Page 15: Modifying The Bearing Cap

    3 Installing the Air Locker Modifying the Bearing Cap  A 6.35mm [1/4”] hole must be drilled in the seal housing bearing cap for the seal housing tube to pass through.  Clean all parts of the differential assembly.  Place the Air Locker into the differential housing, and using the adjuster nuts, position the diff in approximately the correct position.
  • Page 16 3 Installing the Air Locker  Remove the Air Locker and adjuster nuts from the housing.  Mark a spot on the bearing cap inline with the distance you measured earlier (Fig. 9.). Figure 9.  Using a soft jawed vice clamp, setup the bearing cap for drilling the hole at the angle shown (Fig.
  • Page 17: Final Air Locker Assembly

    3 Installing the Air Locker NOTE : Take time and double check when drilling, as bearing caps are custom fitted to the axle housing and cannot be replaced. NOTE : Do not apply too much clamping pressure with the vice. The bearing cap may be damaged. ...
  • Page 18: Setting Up The Bulkhead Fitting

    3 Installing the Air Locker Setting up the Bulkhead Fitting  Apply thread sealant to the threads of the bulkhead body.  Screw the bulkhead body into the tapped hole, and tighten.  Wipe the area clean of any excess thread sealant (inside and outside of the housing).
  • Page 19 3 Installing the Air Locker Figure 12. NOTE : Excessive tightening of the center compression nut is not necessary to form a good seal around the tube and may damage the O-ring, the seal housing tube, or the threads of the compression nut. NOTE : Make sure the seal housing tube is all of the way into the center compression nut while you are tightening...
  • Page 20: Profiling The Seal Housing Tube

    3 Installing the Air Locker Profiling the Seal Housing Tube  With the seal housing tube now firmly secured into the bulkhead fitting, bend the tube so that it closely follows the profile shown in Fig.13. and 14.  Check that the contour of the tube will not interfere with the bearing caps or the axle housing.
  • Page 21: Bench Testing The Air Locker

    NOTE : An accurate way to test for air leaks is to fit a shut-off valve to an air pressure gauge (Available as ARB part #ALTG01). Charge with shop air until 620 KPA [90 PSI] is reached, shut the valve off, disconnect the air hose, and watch to see if there is any drop in pressure.
  • Page 22: Reinstalling The Differential & Axles

    3 Installing the Air Locker Reinstalling Differential and Axles 3.10  Reinstall the third member to the differential housing according to your vehicle service manual.  Reinstall the drive shaft.  Replace the axle seals if necessary and fit to the axles. ...
  • Page 23: Installing The Air System

    4 Installing the Air System Mounting the Solenoid Connection to an ARB Air Compressor (Fig.16.) 4.1.1  Remove one of the 1/8” BSP plugs from its port in the compressor tank.  Apply Teflon paste to the nipple (1/8” X 1/8” BSP) and insert it into the port and tighten.
  • Page 24 For ease of installation, quality of air supply, and a high level of dependability from your Air Locker(s), ARB strongly recommends use of a genuine ARB Air Compressor, however, the Air Locker air system can be operated on any alternate air source that meets each of the following guidelines: ...
  • Page 25: Running & Securing The Air Line

    4 Installing the Air System Running and Securing the Air Line The path taken by the air line from your air source (i.e., compressor) to your Air Locker is unique to your vehicle and the position of your air source. Plan ahead carefully when running the air line and always follow these guidelines: ...
  • Page 26: Connection To The Bulkhead Fitting

    4 Installing the Air System NOTE : To remove the air line from the push-in fitting; pull outward on the flange of the fitting, push the air line as far into the fitting as possible and hold, push inward on the flange, and then pull the air line free of the fitting.
  • Page 27 4 Installing the Air System  Screw on the outer compression nut and tighten, while supporting the center compression nut with a 3/8” spanner. The airline is now attached to the center compression nut. NOTE : The outer compression nut will tighten against a stop. Over tightening will not create a better seal.
  • Page 28: Mounting & Connecting The Electrical System

     Switch(es) should not be mounted where they will be exposed to water (e.g., in the lower section of an inner door panel).  ARB recommends that you apply the Air Locker Warning Sticker (ARB part # 210101) within close visual proximity of the switch location.
  • Page 29: Wiring The Actuator System

    Connection to an ARB AIR COMPRESSOR 5.2.1 When wiring the Air Locker actuator switch(es) and solenoid(s) to an ARB Air Compressor, all connections can easily be set up directly from the supplied wiring loom. (Fig.19.) NOTE : 180409 model loom shown for reference only. Refer to your ARB Air Compressor Installation Guide for details on configuring your installation.
  • Page 30 5 Mounting & Connecting the Electrical System SWITCH TERMINAL IDENTIFICATION Figure 20. Connection to an Alternate Air Source 5 .2.2 When connecting the actuation switch to an alternate air source, the switch(es) should be wired according to figures 21. and 22. depending on whether one or two Air Lockers will be installed in the vehicle.
  • Page 31 5 Mounting & Connecting the Electrical System Dual Air Locker System 5.2.2.2  If two Air Lockers are to be installed in the system, ARB recommends that the switches and solenoids be wired according to figure 22. For safety reasons, this configuration allows SOLENOID 2 to be actuated only if SOLENOID 1 is already on.
  • Page 32: Testing & Final Assembly

    6 Testing & Final Assembly Leak Testing  With the vehicle parked and the engine off, turn the compressor on and wait until the air system is fully charged. NOTE : With the Air Locker(s) disengaged, the air source (i.e., compressor) should not have to recharge over time.
  • Page 33: Filling The Differential

     Rotate the same wheel.  The wheels should again rotate in opposite directions. Filling the Differential NOTE : Consult the ARB Air Locker Operating & Service Manual for recommendations on differential lubricant specifications.  Refill the differential until level with the filler hole.
  • Page 34: Post-Installation Check List

    6 Testing & Final Assembly Post-Installation Check List Now that the Air Locker installation has been completed, ARB recommends that you take the time to complete the following check list just to insure that you haven’t missed any of the vital steps.
  • Page 35: Parts List

    7 Parts List Exploded Assembly Diagram (See itemized parts list overleaf) Figure 23.
  • Page 36: Itemized Parts List

    WARNING LABEL 210101 BUMPER STICKER 210102 OPERATING & SERVICE MANUAL 210200 INSTALLATION GUIDE 2102156 * Not illustrated in exploded view. ** Available only as complete 6 gear set Part No. 2102156 Revision 7/10/2013 Copyright © 2013 by ARB Corporation Limited...

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