Contents
AR RMW Hollow Shaft Pump

- 140° F – Max Water Temp
- 3/4” GHA – Inlet Thread
- 22mm x 14 M – Discharge Thread
- 2.2 oz – Oil Capacity

OVERVIEW

Note
- SX Style – left-handed pumps have a hole in the leg opposite of the unloader.
- Non-SX Style – Right-handed pumps have a hole in the leg on the same side as the unloader.
DIMENSION


SPECIAL PARTS / KITS
| MOD | DESCRIPTION | LIST PRICE |
| AR43061 | Complete Manifold – aluminum | $177.79 |
| AR42142 | EZ start kit | $11.34 |
| AR42165 | Inlet – with o-ring | $27.86 |
| AR42166 | Outlet – with o-ring | $13.09 |
| AR42141 | Grub screw and washer | $4.72 |
| AR42125 | Chemical injection kit | $8.96 |
| AR46377 | Complete Manifold RMW25G28 | $379.06 |
| AR64545 | Oil (4.5 oz) | $15.47 |
REPAIR KITS

Product Specifications
- Model: RMW
- Type: Hollow Shaft Pump
- Material: Aluminum Brass
- Thermal Relief Valve: Included
- Easy Start Valve: Included
- Max Flow Rate: 193 l/min (51 gpm)
- Max Pressure: 12 bar (174 psi)
- Bore Diameter: 12 mm
- Stroke: 12 mm
- Crankshaft ID Stamp: Yes
Product Usage Instructions
Installation
- Ensure the pump is securely mounted on a stable surface.
- Connect the necessary hoses to the inlet and outlet ports of the pump.
- Prime the pump by filling it with water before operation.
- Check all connections for leaks before starting the pump.
Maintenance
- Regularly check and clean the inlet and outlet ports.
- Monitor the oil level and top up if necessary.
- Inspect and replace any worn-out seals or O-rings as needed.
Troubleshooting
- If the pump fails to start, check the power source and connections.
- If there is a drop in performance, inspect and clean the valves and pistons.
Frequently Asked Questions (FAQ)
Q: How often should I change the oil in the pump?
A: It is recommended to change the oil every 3 months or after every 50 hours of operation, whichever comes first.
Q: What should I do if the thermal relief valve activates frequently?
A: Check for any obstructions in the system that may be causing excessive pressure buildup. Also, ensure the pump is not running dry.
