10 SERIES | OM−05463 |
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shock waves can be transmitted to the pump and piping system. Close all connecting valves slowly.
On engine driven pumps, reduce the throttle speed slowly and allow the engine to idle briefly be- fore stopping.
If the application involves a high discharge head, gradually close the discharge throttling valve before stopping the pump.
After stopping the pump, remove the engine igni- tion key to ensure that the pump will remain inop- erative.
Cold Weather Preservation
In below freezing conditions, drain the pump to prevent damage from freezing. Also, clean out any solids by flushing with a hose. Operate the pump for approximately one minute; this will remove any remaining liquid that could freeze the pump rotat- ing parts. If the pump will be idle for more than a few hours, or if it has been pumping liquids con- taining a large amount of solids, drain the pump, and flush it thoroughly with clean water. To prevent large solids from clogging the drain port and pre- venting the pump from completely draining, insert a rod or stiff wire in the drain port, and agitate the liquid during the draining process. Clean out any remaining solids by flushing with a hose.
OPERATION | PAGE C − 3 |
