Haier 1590 SB, 3150 SB, 3150 SF, 3150 SA, 1590 SA Service, Reassembly, 310622L

Service

.

101

112

113

110*117

TI4731a

FIG. 22

8.If you removed the diaphragm shaft bearings (117) reach into the center housing (101) with an o-ring pick and hook the u-cups (110), then pull them out of the housing. Inspect the u-cups. See FIG. 22. Replace parts as needed.

Reassembly

Adhesive must be applied to the outside surface of the bearing (112) and the inside surface of bore (Z) prior to assembly.

1.Install the shaft u-cups (110) so the lips face out of the housing.

2.Insert new bearings (112, 113, and 117) into the center housing (101), tapered end first. Using a press or a block and rubber mallet, press-fit the bearing so it is flush with the surface of the center housing.

Z

112

113

110*117

101 TI4731a

FIG. 23

3.Reassemble the air valve as explained on page 16.

4.Align the new air cover gasket (119) so the pilot pin (114) protruding from the center housing (101) fits through the proper hole in the gasket

.

114 119

TI4730a

FIG. 24

5.Align the air cover (120) so the pilot pin (114) fits in the middle hole (M) of the three small holes near the center of the cover.

114 M 120

TI4790a

FIG. 25

6.Apply medium-strength (blue) Loctite® or equivalent to the threads of the screws (122). Install the screws (122), handtight. Using a 10 mm socket wrench, torque the screws oppositely and evenly to 130-150 in-lb (15-17 N•m). Install the diaphragm assemblies and fluid covers as explained on page 21.

122

TI4790a

FIG. 26

7.Reassemble the ball check valves and manifolds as explained on page 19.

24 310622L