ARB RD153 User Manual
Page 3

Table of Contents:
1
1 Introduction
3
1.1 Pre-Installation Preparation
3
1.2 Tool-Kit Recommendations
4
2 Removing the Existing Differential
5
2.1 Vehicle Support
5
2.2 Differential Fluid Drain
5
2.3 Removing the Axles
5
2.4 Marking the Bearing Caps
7
2.5 Checking the Current Backlash Amount
8
2.6 Removing the Differential Carrier
9
3 Installing the Air Locker
10
3.1 Mounting the Ring Gear
10
3.2 Installing the Carrier Bearings
11
3.3 Drilling and Tapping the Bulkhead Port
12
3.4 Final Air Locker Assembly
13
3.5 Checking the Backlash
14
3.6 Installing the Seal Housing
15
3.7 Setting up the Bulkhead Fitting
16
3.8 Profiling the Seal Housing Tube
19
3.9 Bench Testing the Air Locker
21
3.10 Reinstalling the Differential & Axles
22
4 Installing the Air System
24
4.1 Mounting the Solenoid
24
4.2 Running & Securing the Air Line
26
4.3 Connection to the Bulkhead Fitting
27
5 Mounting & Connecting the Electrical System
29
5.1 Mounting the Actuator Switch(es)
29
5.2 Wiring the Actuator System
30
6 Testing & Final Assembly
33
6.1 Leak Testing
33
6.2 Testing the Air Locker Actuation
33
6.3 Filling the Differential
34
6.4 Post-Installation Check List
35
7 Parts List
37
7.1 Exploded Assembly Diagram
37
7.2 Itemized Parts List
38