Describes the maintenance manual for Viking G75 and GG75 pump, including precautions during maintenance, disassembly and assembly, and safety relief valve instructions
This document is a Technical Service Manual for Viking General Purpose and Special Mounted Pumps, specifically the Series 75 and 475 sizes. It provides detailed instructions for disassembly and reassembly of different pump models, including G75, GG75, H75, and their 475 variants. The manual also covers safety relief valve instructions and pressure adjustment procedures.
| Pump Type | Positive displacement |
|---|---|
| Lubrication Requirement | External lubrication not required |
| Rotation Direction | Clockwise or counterclockwise |
Required tools include a soft headed hammer, Allen wrenches, mechanical seal installation sleeve, brass bar, and an arbor press.
The adjusting screw cap must always point towards the suction side of the pump.
No, pressure relief valves cannot be used to control pump flow or regulate discharge pressure.