Arb RD85 Manuel d'utilisateur

INSTALLATION GUIDE RD85 ISUZU RR, 23 SPL, NON-LSD Part No. 210285Revision Date 25/07/06Copyright © 2000 by ARB

2 Removing the Existing Differential 8 2.6 Spreading the Differential Housing IMPORTANT: Spreading the differential housing with a differen

3 Bench Measurement 9 3.1 Measurement for Pre-Load Shimming The original bearing type and shim type are commonly reused on the left hand (r

3 Bench Measurement 10 Figure 4. Figure 5.

3 Bench Measurement 11 3.2 Calculation & Selection of Shims The thickness of the shim(s) required for the Air Locker (shown as ‘D’ in F

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

4 Installing the Air Locker 13 c Dry the ring gear with compressed air (if wet), paying particular attention to the threaded holes. c Install t

4 Installing the Air Locker 14 4.3 Drilling and Tapping the Bulkhead Port An air line port must be drilled and tapped through the different

4 Installing the Air Locker 15 4.4 Assembling the Differential Carrier c Assemble the supplied bearing cup (now installed into the seal hous

4 Installing the Air Locker 16 c Install one bearing cap on the ring gear side. The bearing cap on the seal housing side will need to be drill

4 Installing the Air Locker 17 4.5 Approximating the Backlash for Tube Position If the backlash is not close enough to the specified amount,

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 4.6 Marking the Bearing Cap for Tube Clearance With the Air Locker in place and less than 0.5mm of backlash,

4 Installing the Air Locker 19 4.7 Modifying the Bearing Cap 4.7.1 Drilling the Bearing Cap c Hold the bearing cap steady for drilling in

4 Installing the Air Locker 20 Figure 10. 4.7.2 Notching the Bearing Cap c Use a soft jawed vise clamp to hold the bearing c

4 Installing the Air Locker 21 4.8 Final Air Locker Assembly c Remove the seal housing, shim pack, and master shim, and clean all parts of

4 Installing the Air Locker 22 4.9 Final Backlash Checking c Set a depth indicator on one of the ring gear teeth as in Figure 12. c While s

4 Installing the Air Locker 23 c To increase the amount of backlash, reduce the shim thickness ‘D’ increase the shim thickness ‘E’ by the same

4 Installing the Air Locker 24 NOTE : Be sure to insert the correct end of the center compression nut into the bulkhead body. The thread

4 Installing the Air Locker 25 4.12 Bench Testing the Air Locker c To test the Air Locker; when 620kPa [90 PSI] shop air is applied to the s

4 Installing the Air Locker 26 4.13 Reinstalling the Differential and Axles c Reinstall the third member to the differential housing accord

5 Installing the Air System 27 5.1 Mounting the Solenoid 5.1.1 Connection to an ARB Air Compressor (Fig.15.) c Remove one of the 1/8

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

5 Installing the Air System 28 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 29 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 30 5.3 Connection to the Bulkhead Fitting c Trim the air line to length using a sharp knife. c Insert the sup

6 Mounting & Connecting the Electrical System 31 6.1 Mounting the Actuator Switch(es) Air Locker actuator switch(es) can be easily pan

6 Mounting & Connecting the Electrical System 32 Figure 17. 6.2 Wiring the Actuator System 6.2.1 Connection

6 Mounting & Connecting the Electrical System 33 UP Figure 18. Figure 19. SWITCHTERMINALIDENTIFICATION ARB

6 Mounting & Connecting the Electrical System 34 6.2.2 Connection to an Alternate Air Source When connecting the actuation switch to a

6 Mounting & Connecting the Electrical System 35 6.2.2.2 Dual Air Locker System c If two Air Lockers are to be installed in the syste

7 Testing & Final Assembly 36 7.1 Leak Testing c With the vehicle parked and the engine off, turn the compressor on and wait until the

7 Testing & Final Assembly 37 c Turn the ignition to the ‘ON’ position (leaving the motor off). The large illuminating symbol on the Air L

2

7 Testing & Final Assembly 38 7.4 Post-Installation Check List Now that the Air Locker installation has been completed, ARB recommends

8 Parts List 39 8.1 Exploded Assembly Diagram (See itemized parts list overleaf) Figure 2

8 Parts List 40 8.2 Itemized Parts List (See exploded diagram figure 22.) AIR LOCKER MODEL No. : RD85 ITEM # QTY DESCRIPTION

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

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 2.4 Marking the Bearing Cap(s) c Using a pointed center punch, gently mark the bearing caps in a way

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