Graco 24M178, 234401 important safety instructions Self-Relieving Air Regulator, Cleaning

Page 10

Maintenance and Repair

Self-Relieving Air Regulator 288787

Be sure air to the regulator is clean. Erratic operation or loss of regulation is usually caused by dirt in the regula- tor.

289190

Cleaning

1.Follow the Pressure Relief Procedure, page 8.

2.Remove bottom plug, spring, and valve.

3.Remove six screws, and separate regulator body.

4.Clean all parts with denatured alcohol. Wipe off seat and blow out body.

5.Inspect parts for damage and replace as needed. To replace the valve and diaphragm, order Repair Kit 288796.

6.Reassemble parts and screw them into the regula- tor before tightening the bottom plug. Make sure the valve, diaphragm and spring are center aligned.

Air Regulator Assembly

for Desiccant Air Drying System

289340

 

 

80

100

 

 

60

 

 

4

0

4

6

120

 

 

 

 

8

 

2

2

 

 

1

 

 

10

0

 

 

40

 

 

 

 

160

 

289149

289165

288797

Screws (6)

288796

Diaphragm

 

Valve

 

289191(spring)

 

Bottom Plug

Part No.

Description

289340

Air Pressure Gauge

289149

Plug

288796

Diaphragm/Valve Repair Kit

289190

T-handle Adjusting Screw

289191

Spring

288797

Nipple, 3/8 in. x 3/8 in.

289165

Shut-off Valve

10

309921N

Image 10
Contents Important Safety Instructions IncludesHow Desiccant Air Drying System Works Installation Shop Air Piping LayoutAir Hose Inside 10 ft 15 ft 20 ft 25 ft 50 ft Minimum Pipe Size RecommendationsCapacity Length 22 m 05 m 62 m 15.24 m .4 mm309921N Model 234401, Series D Coalescer Pressure Drop IndicatorOperation Model 24M178, Series BPart No. Description DescriptionAir Filter 234402, Series B Maintenance and RepairPressure Relief Procedure Coalescer 234397, Series BFollow the Pressure Relief Procedure, Desiccant Housing 234404, Series BDesiccant Housing Disassembly Desiccant ChangeoutAir Regulator Assembly For Desiccant Air Drying System CleaningSelf-Relieving Air Regulator 309921N Graco Standard Warranty Graco Phone Numbers