Arb RD158 Manuel d'utilisateur

INSTALLATION GUIDE RD158 DANA 50, 30 SPLINE Part No. 2102158 Revision Date 4/04/2012 Copyright © 2012 by ARB Co

2 Removing the Existing Differential 8 2.6 Removing the Differential Center IMPORTANT: SPREAD THE HOUSING FOR REMOVAL AND INSTALLATION OF

3 Bench Measurement 9 3.1 Measurement of Pre-Load Shimming In order to reproduce a similar pre-load and ring and pinion backlash in your Air

3 Bench Measurement 10 Figure 6.  Using a caliper or similarly accurate measurement method (i.e., able to take accurate measu

3 Bench Measurement 11 3.2 Calculation & Selection of Shims Ideally, the measurement you recorded as ‘A’ from the OE differential will cl

4 Installing the Air Locker 12 4.1 Installing the Carrier Bearings  With the Air Locker well supported in an arbor press, apply a thin film

4 Installing the Air Locker 13 4.2 Mounting the Ring Gear  Apply a thin film of high-pressure grease to the ring gear shoulder of the Air L

4 Installing the Air Locker 14 4.3 Drilling and Tapping the Bulkhead Port A port must be drilled and tapped through the differential housin

4 Installing the Air Locker 15 4.4 Assembling the Differential Carrier Figure 9.  Clean all parts of the differential ass

4 Installing the Air Locker 16 4.5 Calculation & Selection of Pre-Load Shims In order to pre-load the tapered roller bearings in your Ai

4 Installing the Air Locker 17 4.6 Reinstalling the Bearing Caps IMPORTANT: The ARB master shim must be assembled between the stepped side

No liability is assumed for damages resulting in the use of the information contained herein. ARB Air Locker Air Operated Locking Differentia

4 Installing the Air Locker 18 4.7 Checking the Backlash  Set a depth indicator on one of the ring gear teeth as in Figure 11.  While s

4 Installing the Air Locker 19  To increase the amount of backlash, increase the shim thickness ‘D’ (Fig.6.) and decrease the shim thickness ‘

4 Installing the Air Locker 20 4.9 Setting Up the Bulkhead Fitting NOTE : Use an automotive brake line tubing cutter to cut the seal hous

4 Installing the Air Locker 21 NOTE : Excessive tightening of the center compression nut is not necessary to form a good seal around the t

4 Installing the Air Locker 22 NOTE : Do not spray this soapy mixture inside the differential.  Check that leaky fittings have been ade

5 Installing the Air System 23 5.1 Mounting the Solenoid 5.1.1 Connection to an ARB Air Compressor (Fig.15.)  Remove one of the 1/8”

5 Installing the Air System 24 5.1.2 Connection to an Alternate Air Source For ease of installation, quality of air supply, and a high lev

5 Installing the Air System 25 5.2 Running and Securing the Air Line The path taken by the air line from your air source (i.e., compressor

5 Installing the Air System 26 5.3 Connection to the Bulkhead Fitting  Trim the air line to length using a sharp knife.  Insert the sup

6 Mounting & Connecting the Electrical System 27 6.1 Mounting the Actuator Switch(es) Air Locker actuator switch(es) can be easily pan

Table of Contents: 1 1 Introduction 3 1.1 Pre-Installation Preparation 3 1.2 Tool-Kit Recommendations 4 2 Removing the Existing Differ

6 Mounting & Connecting the Electrical System 28 Figure 17. 6.2 Wiring the Actuator System 6.2.1 Connection

6 Mounting & Connecting the Electrical System 29 UP Figure 18. Figure 19. SWITCH TERMINAL

6 Mounting & Connecting the Electrical System 30 6.2.2 Connection to an Alternate Air Source When connecting the actuation switch to a

6 Mounting & Connecting the Electrical System 31 6.2.2.2 Dual Air Locker System  If two Air Lockers are to be installed in the syste

7 Testing & Final Assembly 32 7.1 Leak Testing  With the vehicle parked and the engine off, turn the compressor on and wait until the

7 Testing & Final Assembly 33  Turn the ignition to the ‘ON’ position (leaving the motor off). The large illuminating symbol on the Air L

7 Testing & Final Assembly 34 7.4 Post-Installation Check List Now that the Air Locker installation has been completed, ARB recommends

8 Parts List 35 8.1 Exploded Assembly Diagram (See itemized parts list overleaf) Figure 22.

8 Parts List 36 8.2 Itemized Parts List (See exploded diagram figure 22.) AIR LOCKER MODEL No. : RD158 ITEM # QTY DESCRIPTIO

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1 Introduction 3 IMPORTANT : BEFORE ATTEMPTING TO DISMANTLE YOUR VEHICLE FOR THIS INSTALLATION, PLEASE READ THIS INSTALLATION GUIDE IN ITS EN

1 Introduction 4 1.2 Tool-Kit Recommendations Below is a list of tools and supplies you may need to complete this installation. Requiremen

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

2 Removing the Existing Differential 6 2.3 Disconnecting the Axles IMPORTANT : Collision damage or heavy off-road use of your vehicle in t

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