General • Inspections

Gorman-Rupp Pumps (T8A61−B) Pressure Relief Valve Maintenace

Use this checklist for the general maintenance of your equipment's pressure relief valve. It will help your company save money because it will teach your managers and staff to focus on preventing equipment failure rather than reacting in case of emergencies.

MaintainX

10/07/2022

Gorman-Rupp Pumps (T8A61−B) Pressure Relief Valve Maintenace

Figure 1. 1st half

Figure 1. 2nd half

Gorman-Rupp Pumps (T8A61−B) Pressure Relief Valve Maintenace

It is recommended that the pressure relief valve assembly be replaced at each overhaul, or any time the pump overheats and activates the valve. Never replace this valve with a substitute which has not been specified or provided by the Gorman-Rupp Company.

Periodically, the valve should be removed for inspection and cleaning. When reinstalling the relief valve, apply ‘Loctite Pipe Sealant With Teflon No. 592’, or equivalent compound, on the relief valve threads. Position the valve as shown in Figure 1 with the discharge port pointing down.

Final Pump Assembly (Figure 1)

Install the shaft key (16, Figure 2) and reconnect the power source. Be sure to install any guards used over the rotating members.

Install the suction and discharge lines and open all valves. Make certain that all piping connections are tight, properly supported and secure.

Be sure the pump and power source have been properly lubricated, see LUBRICATION.

Remove the fill cover (56) and fill the pump casing with clean liquid. Reinstall the fill cover and tighten it. Refer to OPERATION, Section C, before putting the pump back into service.

LUBRICATION

Seal Assembly (Figure 2)

Figure 2. 1st half

Figure 2. 2nd half

Before starting the pump, remove the vented plug (8) and fill the seal cavity with approximately 90 ounces (2,7 liters) of SAE No. 30 non-detergent oil, or to a level just below the tapped vented plug hole. Clean and reinstall the vented plug. Maintain the oil at this level.

Bearings (Figure 2)

The bearing housing was fully lubricated when shipped from the factory. Check the oil level regularly through the sight gauge (19)and maintain it at the middle of the gauge. When lubrication is required, add SAE No. 30 non-detergentoil through the hole for the air vent (11). Do not over-lubricate.

Over-lubrication can cause the bearings to overheat, resulting in premature bearing failure.

Power Source

Consult the literature supplied with the power source, or contact your local power source representative.

Source: MaintainX (Community Member)