Arb RD142 User Manual

INSTALLATION GUIDE TOYOTA 8.9”, 50mm CARRIER BEARING RD142 Part No. 2102142Revision Date 21/07/200

2 Removing the Existing Differential 8 2.6 Removing the differential carrier  Remove the adjuster nut locking tabs.  Remove the bearing cap

3 Installing the Air Locker 9 3.1 Mounting the Ring Gear  Remove the bolts that hold the ring gear in place.  Using a plastic or copper ham

3 Installing the Air Locker 10 Figure 4. 3.2 Installing the Carrier Bearings NOTE : If you are installin

3 Installing the Air Locker 11 Figure 5. 3.3 Drilling and Tapping the Bulkhead Port An ai

3 Installing the Air Locker 12  Cover the drive pinion area with a rag to protect it from metal filings.  Secure the differential housing to

3 Installing the Air Locker 13 3.5 Checking the Backlash  Set a depth indicator on one of the ring gear teeth. (Fig.7.)  While supporting

3 Installing the Air Locker 14 3.6 Installing the Seal Housing  Make sure the grooves and airway of the seal housing are clean and free fr

3 Installing the Air Locker 15  Install the spring clip by first hooking both ends of the clip into the small aligned cutouts of the seal housi

3 Installing the Air Locker 16 NOTE : Use an automotive brake line tubing cutter to cut the seal housing tube, never a hacksaw as this will

3 Installing the Air Locker 17 NOTE : Excessive tightening of the center compression nut is not necessary to form a good seal around the tub

No liability is assumed for damages resulting in the use of the information contained herein. ARB AIR LOCKER Locking Differentials and AIR LOCKER a

3 Installing the Air Locker 18 3.8 Profiling the Seal Housing Tube  With the seal housing tube now firmly secured into the bulkhead fitting

3 Installing the Air Locker 19 Figure 13. IMPORTANT: In order for the seal housing to float and self center on the beari

3 Installing the Air Locker 20 3.9 Bench Testing the Air Locker  To test the Air Locker, when 620kPa [90 PSI] shop air is applied to the sea

3 Installing the Air Locker 21 3.10 Reinstalling Differential and Axles  Replace the paper gasket on the axle housing flange.  Reinstall t

4 Installing the Air System 22 4.1 Mounting the Solenoid 4.1.1 Connection to an ARB Air Compressor (Fig.15.)  Remove one of the 1/8” BS

4 Installing the Air System 23 4.1.2 Connection to an Alternate Air Source For ease of installation, quality of air supply, and a high level

4 Installing the Air System 24 4.2 Running and Securing the Air Line The path taken by the air line from your air source (i.e., compressor)

4 Installing the Air System 25 NOTE : To remove the air line from the push-in fitting; pull outward on the flange of the fitting, push the ai

4 Installing the Air System 26 HINT : If the support tube is too difficult to insert, place the end of the air line into a cup of boiled wat

5 Mounting & Connecting the Electrical System 27 5.1 Mounting the Actuator Switch(es) Air Locker actuator switch(es) can be easily pane

Table of Contents: 1 1 Introduction 31.1 Pre-Installation Preparation 31.2 Tool-Kit Recommendations 4 2 Removing the Existing Differe

5 Mounting & Connecting the Electrical System 28 5.2 Wiring the Actuator System 5.2.1 Connection to an ARB AIR COMPRESSOR When wiri

5 Mounting & Connecting the Electrical System 29 Figure 19. 5.2.2 Connection to an Alternate Air Source When connecting the

5 Mounting & Connecting the Electrical System 30 5.2.2.2 Dual Air Locker System  If two Air Lockers are to be installed in the system

6 Testing & Final Assembly 31 6.1 Leak Testing  With the vehicle parked and the engine off, turn the compressor on and wait until the a

6 Testing & Final Assembly 32  Turn the compressor (or alternate air source) on to charge the air supply up to its maximum pressure.  Rota

6 Testing & Final Assembly 33 6.4 Post-Installation Check List Now that the Air Locker installation has been completed, ARB recommends t

6 Testing & Final Assembly 34

7 Parts List 7.1 Exploded Assembly Diagram (See itemized parts list overleaf) Figure 22. 35

7 Parts List 7.2 Itemized Parts List (See exploded diagram Figure 22.) AIR LOCKER MODEL No. : RD142 ITEM # QTY DESCRIPTION PART

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3 IMPORTANT : BEFORE ATTEMPTING TO DISMANTLE YOUR VEHICLE FOR THIS INSTALLATION, PLEASE READ THIS INSTALLATION GUIDE IN ITS ENTIRETY, AS WELL AS

2 Removing the Existing Differential 4 1.2 Tool-Kit Recommendations Below is a list of tools and supplies you may need to complete this inst

2 Removing the Existing Differential 5 2.1 Vehicle Support  Safely secure the vehicle on a hoist. We recommend supporting the vehicle on a c

2 Removing the Existing Differential 6 2.4 Marking the Bearing Caps  Using a small pointed center punch, gently mark the bearing caps in a

2 Removing the Existing Differential 7 2.5 Checking the Current Backlash Amount IMPORTANT: This step is a precautionary measure recommended