An Air Dryer is Available for the Air Compressor and the Governor Assembly {1803, 4285} Caterpillar

Motor Grader

120H (S/N: 1241-UP; CAF335-UP; ALZ1-UP)

12H (S/N: 12584-UP; CBK309-UP; AMZ497-UP)

135H (S/N: CBC204-UP)

140H (S/N: 126176-UP; CCA420-UP; APM1312-UP)

143H (S/N: APN390-UP)

14H (S/N: ASE979-UP)

160H (S/N: ASD356-UP; CCP205-UP)

163H (S/N: ARL301-UP)

16H (S/N: ATS267-UP)

Introduction

The following procedure is written to update the Motor Graders that are listed above with the new air dryer. The dryer system will prevent moisture from collecting inside the air system. This dryer system will increase service life of seals in the air system.

Safety Section

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Do not operate or work on this machine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact your Caterpillar dealer for replacement manuals. Proper care is your responsibility.

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Personal injury or death can result from improper troubleshooting and repair procedures. The following troubleshooting and repair procedures should only be performed by qualified personnel familiar with this equipment.

Required Materials

Installation Procedure

This installation procedure will cover all the machines that are listed above. Refer to Disassembly and Assembly, "Air Compressor" for the specific procedures for connecting the new hoses to the air compressor.

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Illustration 1	g01596181
(1) 247-8607 Plate (2) Holes

1. Gain access to the service center to locate 247-8607 Plate (1) and holes (2).
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   Illustration 2	g01597139
   (3) 7J-8611 Pipe Elbow (4) 7D-4903 Adapter (5) 5P-4426 Air Brake Elbow (6) 5P-4401 Air Brake Connector (7) 5P-4426 Air Brake Elbow

2. Install fittings (3), (4), (5), (6), and (7) into the 215-3005 Air Dryer Gp.
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   Illustration 3	g01597636
   (3) 7J-8611 Pipe Elbow (8) 177-0279 Hose As

3. Assemble the 177-0279 Hose As (8) to the 7J-8611 Pipe Elbow (3).
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   Illustration 4	g01596345
   (9) 215-3005 Air Dryer Gp (10) 5P-2566 Bolts (11) 8T-4223 Hard Washers

4. Attach the 215-3005 Air Dryer Gp (9) to the 247-8607 Plate. Use three 5P-2566 Bolts (10) and three 8T-4223 Hard Washers (11) to attach the dryer.
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   Illustration 5	g01597393
   (12) 3J-5390 Plug (13) 5P-4424 Air Brake Elbow (14) 191-3645 Reservoir

5. Install plug (12) and air brake elbow (13) into the 191-3645 Reservoir.
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   Illustration 6	g01596973
   (14) 191-3645 Reservoir (15) 8T-4189 Bolts (16) 8T-4224 Hard Washers

6. Attach the 191-3645 Reservoir (14) to the service center by using two 8T-4189 Bolts (15) and two 8T-4224 Hard Washers (16).
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   Illustration 7	g01599454
   (8) 177-0279 Hose As (17) 205-7187 Governor (18) 6V-2610 Fitting

7. Install a 6V-2610 Fitting (17) on the 205-7187 Governor (18). Assemble the 177-0279 Hose As (8) to the 205-7187 Governor (17).
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   Illustration 8	g01599776
   (19) 209-9985 Air Tank (20) 5P-4426 Air Brake Elbow

8. Remove the 2H-3940 Elbow and remove the hose that connects the elbow. Install a new 5P-4426 Air Brake Elbow (20) into the 209-9985 Air Tank (19).
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   Illustration 9	g01601975
   (21) 260-9194 Tube (22) 268-3456 Tube (23) 208-1512 Tube As

9. Assemble tubes (21), (22), and (23).

   Note: The 268-3456 Tube (22) will need to be installed to the 191-3645 Reservoir first.

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   Illustration 10	g01603074
   (23) 208-1512 Tube As (24) 6K-8178 Clip

10. Attach the 208-1512 Tube As (23) with a 6K-8178 Clip (24). Use a 8T-4137 Bolt and a 8T-4121 Hard Washer to attach the clip to the block that is welded to the service center.
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    Illustration 11	g01603435
    (25) 216-7313 Hose As

11. Install the 216-7313 Hose As (25) to the air compressor and the 208-1512 Tube As.
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    Illustration 12	g01603535
    (9) 215-3005 Air Dryer Gp (26) 8I-1362 Hose

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    Illustration 13	g01604254
    (26) 8I-1362 Hose (27) 0A-3721 Clip

12. Cut 100 cm (39.37 inch) of 8I-1362 Hose (26). Install the hose to the exhaust port on the dryer (9). Refer to Illustration 12 for the correct location. Route coolant hose through the bottom of the service center. Attach the coolant hose to the right side of the service center with a 0A-3721 Clip (27). Refer to Illustration 13 for the correct location.
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    Illustration 14	g01604353
    (28) Receptacle

13. The wire harness plug should already be installed onto the service center. Plug the loose end into the receptacle on the 215-3005 Air Dryer Gp (28).

14. Ensure that a 9W-1442 Fuse is installed in the correct location. The fuse block is located in the steering column.