Arb RD127 Manuel d'utilisateur

INSTALLATION GUIDE RD127 Part No. 2102127Revision Date 16/01/2008Copyright © 2008 by ARB Corporatio

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  Apply a thin film of high pre

3 Installing the Air Locker 11 3.3 Drilling and Tapping the Bulkhead Port An air line port must be drilled and tapped through th

3 Installing the Air Locker 12 3.4 Final Air Locker Assembly  Clean all parts of the differential assembly, paying particular attention to

3 Installing the Air Locker 13 Figure 7.  Insert the original adjuster nut onto the opposite side of the differential and t

3 Installing the Air Locker 14 3.5 Checking the Backlash  Set a depth indicator on one of the ring gear teeth (Fig.8.).  While supportin

3 Installing the Air Locker 15 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 16 3.6.1 Roll Pin Type  If your diff has roll pins instead of locking tabs, slightly rotate the adjuster nut so

3 Installing the Air Locker 17  Install the spring clip by first hooking both ends of the clip into the small aligned cutouts of the seal housi

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 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 19 Figure 14. NOTE : Excessive tightening of the center compression nut is not necessary to fo

3 Installing the Air Locker 20 3.8 Profiling the Seal Housing Tube  With the seal housing tube now firmly secured into the bulkhead fitting

3 Installing the Air Locker 21 Figure 17. Figure 18. IMPORTANT: In order for the seal housing to float and s

3 Installing the Air Locker 22 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 23 3.10 Reinstalling Differential and Axles  Reinstall the third member to the differential housing according t

4 Installing the Air System 24 4.1 Mounting the Solenoid 4.1.1 Connection to an ARB Air Compressor (Fig.20.)  Remove one of the 1/8” BS

4 Installing the Air System 25 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 26 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 27 NOTE : To remove the air line from the push-in fitting; pull outward on the flange of the fitting, push the ai

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

4 Installing the Air System 28 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 29 5.1 Mounting the Actuator Switch(es) Air Locker actuator switch(es) can be easily pane

5 Mounting & Connecting the Electrical System 30 5.2 Wiring the Actuator System 5.2.1 Connection to an ARB AIR COMPRESSOR When wiri

5 Mounting & Connecting the Electrical System 31 SWITCHTERMINALIDENTIFICATIONUP Figure 24. 5.2.2 Connection to an Alternate Ai

5 Mounting & Connecting the Electrical System 32 5.2.2.2 Dual Air Locker System  If two Air Lockers are to be installed in the system

6 Testing & Final Assembly 33 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 34  Turn the compressor (or alternate air source) on to charge the air supply up to its maximum pressure.  Rota

6 Testing & Final Assembly 35 6.4 Post-Installation Check List Now that the Air Locker installation has been completed, ARB recommends t

6 Testing & Final Assembly 36

7 Parts List 37 7.1 Exploded Assembly Diagram (See itemized parts list overleaf) Figure 27.

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7 Parts List 38 7.2 Itemized Parts List (See exploded diagram Figure 27.) AIR LOCKER MODEL No. : RD127 ITEM # QTY DESCRIPTION

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 ins

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