Service Instructions - Den-Sin C-150D User Manual & Spare Parts Manual

Service instructions

Detach the high pressure hose, dump back hose, inlet hose, safety valve, and parts on the
pump head before serving the pump.
(Please refer to Pump assembly (Page 17) unless otherwise stated.)
Servicing the valves:
1. Remove the valve cap (Pos: 2).
2. Inspect the valve cap O-Ring (Pos: 1) for any damage, replace if necessary.
3. Use the needle nose pliers to remove the valve (Pos: 3).
4. Use a small probe to move the poppet up and down to assure that the valve is
functioning properly and that no debris is stuck in the valve (Pos: 3).
5. To reassemble the valves proceed the other way round and tighten the cover screws
with a torque wrench. (Referring to torque specification)
Servicing the Packings/Seals:
1. Remove the bolts (Pos: 38) on the head (Pos: 36) of the pump.
2. Place the screwdrivers between the head (Pos: 36) and crankcase (Pos: 9) of the pump,
lifting one up and the other down. The head should start to lift off of the plungers (Pos:
23).
3. When you remove the head, some of the water seals have stayed on the plungers (Pos:
23) and some in the head (Pos: 36). To remove the seals from the plungers (Pos: 23),
simple turn the assemblies and pull off.
C-150-200D
3. Maintenance and Troubleshooting
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