Arb RD83 Manuel d'utilisateur

INSTALLATION GUIDE RD83 GM 10 Bolt,8.5”,28 SPL Part No. 210283Revision Date 21/11/03Copyright © 2003 by ARB Cor

2 Removing the Existing Differential 8 2.5 Checking the Current Backlash Amount IMPORTANT: This step is a precautionary measure recommen

2 Removing the Existing Differential 9 2.6 Removing the Differential Center IMPORTANT: YOU MUST SPREAD THE HOUSING ON GM 8.5” MODELS S

3 Installing the Air Locker 10 3.1 Insuring Adequate Oil Drainage IMPORTANT: Some axles were manufactured with poor oil drainage between

3 Installing the Air Locker 11 Figure 5. Figure 6. NOTE : Cover the differential housing cavity an

3 Installing the Air Locker 12 NOTE : Figure 7. shows a lower drainage hole cut into a bearing seat. Figure 7. c Remove any

3 Installing the Air Locker 13 3.2 Installing the Carrier Bearings c Apply a thin film of high pressure grease to both bearing journals of

3 Installing the Air Locker 14 3.3 Approximate Backlash Shimming In order to reproduce a similar pre-load and ring and pinion backlash in yo

3 Installing the Air Locker 15 c Assemble the new bearing cup onto the right-hand side of the Air Locker and measure the total distance from t

3 Installing the Air Locker 16 c Create a shim pack to match ‘D’. To achieve this desired shim thickness you can: • Use the shim from the o

3 Installing the Air Locker 17 3.5 Drilling and Tapping the Bulkhead Port An airline port must be drilled and tapped through the different

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

3 Installing the Air Locker 18 3.6 Assembling the Seal Housing Figure 12. c Make sure the grooves and airway of the s

3 Installing the Air Locker 19 3.7 Pre-Load Shimming In order to pre-load the tapered roller bearings in your Air Locker, measurements need

3 Installing the Air Locker 20 c Remove the Air Locker from the axle housing. c Install the shim pack ‘E’ between the master shim and the seal

3 Installing the Air Locker 21 3.8 Reinstalling the Bearing Caps IMPORTANT: The Air Locker master shim must be assembled between the ste

3 Installing the Air Locker 22 3.9 Checking the Backlash c Set a depth indicator on one of the ring gear teeth as in Figure 16. c While s

3 Installing the Air Locker 23 3.9.1 Re-Shimming the Backlash NOTE : This step is only necessary when adjusting for incorrect backlash.

3 Installing the Air Locker 24 c Insert the free end of the seal housing tube into the bulkhead fitting until it protrudes approximately 8mm [5

3 Installing the Air Locker 25 3.11 Profiling the Seal Housing Tube c Completely remove the differential spreader. c Without using sharp,

4 Installing the Air System 26 4.1 Mounting the Solenoid 4.1.1 Connection to an ARB Air Compressor (Fig.20.) c Remove one of the 1/8”

4 Installing the Air System 27 4.1.2 Connection to an Alternate Air Source For ease of installation, quality of air supply, and a high le

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

4 Installing the Air System 28 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 29 c To attach the air line to the push-in fitting of the solenoid; insert the line firmly into the fitting, pull

4 Installing the Air System 30 HINT : If the support tube is too difficult to insert, place the end of the air line into a cup of boiled w

5 Mounting & Connecting the Electrical System 31 5.1 Mounting the Actuator Switch(es) Air Locker actuator switch(es) can be easily pan

5 Mounting & Connecting the Electrical System 32 Figure 22. 5.2 Wiring the Actuator System 5.2.1 Connectio

5 Mounting & Connecting the Electrical System 33 UP Figure 23. Figure 24. SWITCHTERMINALIDENTIFICATION ARB

5 Mounting & Connecting the Electrical System 34 5.2.2 Connection to an Alternate Air Source When connecting the actuation switch to a

5 Mounting & Connecting the Electrical System 35 5.2.2.2 Dual Air Locker System c If two Air Lockers are to be installed in the syste

6 Testing & Final Assembly 36 6.1 Leak Testing c With the vehicle parked and the engine off, turn the compressor on and wait until the

6 Testing & Final Assembly 37 Figure 27. c Completely remove the long cross shaft. Figure 28. c Rotate the differ

2

6 Testing & Final Assembly 38 Figure 29. c Pull outward on the axle shaft to seat the ‘C’ clip into the side gear. c Rep

6 Testing & Final Assembly 39 6.3 Testing the Air Locker Actuation To test that your air system, electrical system, and your Air Locke

6 Testing & Final Assembly 40 6.5 Post-Installation Check List Now that the Air Locker installation has been completed, ARB recommends

7 Parts List 41 7.1 Exploded Assembly Diagram (See itemized parts list overleaf) Figure 30.

7 Parts List 42 7.2 Itemized Parts List (See exploded diagram figure 30.) AIR LOCKER MODEL No. : RD83 ITEM # QTY DESCRIPTION

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

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

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

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

2 Removing the Existing Differential 7 2.4 Marking the Bearing Caps c Using a pointed center punch, gently mark the bearing caps in a way t