Bendix Tch 008 030 Users Manual Buletin Type.

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Technical Bulletin

Bulletin No: TCH-008-030-A Effective Date: 4/12/99 Cancels: N/A Page: 1 of 3

Subject: UPGRADED AD-9 MAINTENANCE KIT

This is to announce the availability of a new, upgraded maintenance kit for the AD-9 air dryer. The new kit,

5005037, replaces the obsolete 5004336 kit.

The change in the kit brings the purge valve up to new design standards. An optimized seal design increases the

air dryer’s resistance to freeze-ups and reduces mechanical sticking of the purge piston. The kit’s assembly tool is

required for inserting the new purge piston.

The new kit has been in production since October 1998. Refer to Installation Instructions (BWS1065) for kits

5005037, 5005893, 107794 and 107796 when using the 5005037 AD-9 maintenance kit.

Kit Contents

Kit 5004336 (Old) Kit 5005037 (New)

Description Qty. Key Description Qty.

O-Ring 1 1 Shoulder Bolt 1

¼” Tapping Screw 3 2 Piston Guide 1

¼” Lock Nut 1 3 ¼” Tapping Screw 3

O-Ring 1 4 ¼” Washer 3

Barium Grease 1 5 Purge Valve Complete 1

Purge Valve Complete 1 6 Return Spring 1

O-Ring 1 7 Purge Piston Assembly 1

O-Ring 1 8 Quad Ring 1

O-Ring 1 9 O-Ring 1

Quad-Ring 1 10 O-Ring 1

Purge Piston Guide 1 11 O-Ring 1

Piston Return Spring 1 12 Assembly Tool 1

Shoulder Bolt 1 Barium Grease (not shown) 1

Installation Instructions 1 Installation Instruction (not

shown) 1

Note:

• Kit 5005037 is the hard seat piston

• Kit 5005893 is the soft seat piston

Kit 5005037

(numbers correspond to chart on page 1)

Purge valve

housing assembly

(not included)

Wire Harness

Connector

6

7

8

9

10

12

3

4

1

2

5

11

Upper Bracket Strap

5/16” x 4-1/2” Upper

Bracket Cap Screw

5/16”

Lock Nu

t

5/16” Lock Washer

Upper Mounting Bracket

Housing

Lock Nut

Desiccant

Complete

Cartridge

O-Ring

O-Ring

Safety

Valve 3/8” Special

Washe

r

End Cover

3/8” Cap

Screw

3/8”

Special

Washer

Lower Mounting

Bracke

t

Check Valve Assembly

3/8” Cap

Scre

w

3/8” Special Washer

O-Ring

Wiring Harness

Connector

Seal

11

10

9

3

4

Exhaust

Cove

r

EXTENDED EXHAUST COVERS

OLD VERSION NEW VERSION