Graco Inc 224895, 224894, 224892, 224893, 308178 Servicing the Fluid Inlet and Outlet

Service

6.Place the o-ring (15*) on the bolt (14). Install the lower diaphragm plate (12), with the flat side facing down.

7.Install the diaphragm (13**), making certain that the side marked AIR SIDE is facing up on the bolt. On Models 224892 and 224894 only, install the PTFE diaphragm (21**) first, then the backup diaphragm (13**).

8.Install the upper diaphragm plate (32*) with the flat side facing up. Apply thread sealant to the bolt (14). Hold the bolt steady with a wrench, and screw the nut (31) onto the bolt (14). Torque to 5 to 7 ft-lb (7 to 10 N-m).

9.Wrap the shaft (11) with a rag to protect it, and use locking pliers to screw the shaft onto the bolt (14). Torque to 10 to 15 in-lb (1.1 to 1.7 N-m).

10.Lubricate the inner diameter of the housing (8) with lithium-based grease. Slide the shaft and diaphragm assembly into the housing (8). Place the cover (7) on the housing (8).

11.Position the clamp (6) around the housing (8) and cover (7). Apply thread lubricant to the threads of the v-clamp, secure with the nuts, and torque to 6 to 10 ft-lb (8 to 14 N.m). See the Parts Drawing on page 12.

Servicing the Fluid Inlet and Outlet

NOTE: Repair Kits are available to service the internal parts of the fluid inlet and outlet. See page 14 for ordering information. Parts included in the kits are marked with three asterisks, for example (16***). The kits include some parts which are not used on the surge suppressor. Use all the applicable parts in the kit for the best results.

1.Relieve the pressure.

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 4.

2.Place a container under the surge suppressor, disconnect the hoses, and turn the surge suppressor on end to drain the fluid.

3.Remove the bolts (2), lockwashers (3), and nuts

(1) holding one manifold (9) to the cover (7). Repeat for the other side. See Fig. 2.

4.Pull the two o-rings (16), guide (18) and stop (17) out of the cover (7). Repeat for the other side. Clean and inspect all parts for wear or damage.

5.Push one o-ring (16***) all the way into the cavity of the cover (7). Install the stop (17***) with the beveled side facing inward. Install the guide (18***) with the flat end facing inward, then install the second o-ring (16***) around the outer edge of the guide. Repeat for the other side.

6.Install the manifold (9) on the cover (7) with the chamfer facing outward. Secure with the bolts (2), lockwashers (3), and nuts (1). Torque to 3 to 6 ft-lb (4 to 8 N.m). Repeat for the other side.

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