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General| Brand | HALE |
|---|---|
| Model | DSD |
| Category | Water Pump |
| Language | English |
Manufacturer warrants products free of defects in material and workmanship for two years or 2000 hours.
Conditions for Hale's obligation, including use, maintenance, and no abuse.
Procedures for notifying Hale of defects and Hale's options for repair or replacement.
Describes the packing's function in creating a watertight seal and its maintenance.
Describes the mechanical seal as an option to pump packing to prevent leakage.
Explains the miniature centrifugal pump system for lubrication and cooling of bearings.
Discusses Hale's variety of pump gear ratios and the gearbox construction.
Explains the difference between single and two-stage pumps and the function of a transfer valve.
Describes volume operation in two-stage pumps where impellers work in parallel for higher flow.
Explains pressure operation in two-stage pumps where impellers work in series for higher pressure.
Explains the function of priming pumps in creating vacuum to draw water into the main pump.
Explains the TPM system for complete pressure control, handling small and large pressure changes.
Provides procedures for manual override of pump shifts if automatic shifting fails.
Explains how to adjust the packing gland for proper leakage to lubricate and cool the shaft.
Details the dry vacuum test procedure to detect air leaks in the priming system.
Procedures for checking the relief valve system and cleaning strainers if not working.
Explains the purpose of yearly standard performance tests and comparison to original ratings.
Details the NFPA standards for pump testing, including reserve pressure and engine stabilization.
Provides step-by-step instructions for repacking the pump with new packing kits.
Outlines the test and adjustment procedures for annual MIV and 40BD Relief Valves.
Outlines the procedure for testing the Thermal Relief Valve (TRV) every 12 months.
Provides a table of common pump problems, possible causes, and suggested corrective measures.
Troubleshoots issues related to the pump losing prime or failing to prime, including possible causes and corrections.
Continues troubleshooting for pump prime loss, focusing on air traps, low pressure, and air leaks.
Addresses issues of insufficient pump capacity, listing possible causes like low engine power or incorrect transfer valve settings.
Troubleshoots insufficient pump pressure, relating it to capacity issues or incorrect transfer valve settings.
Discusses leaks at the pump packing due to adjustment or wear and suggests corrective actions.
Explains why engine speeds might be too high, relating it to transmission selection, lift, or hose issues.
Troubleshoots relief valve issues where it fails to relieve pressure when valves are closed.
Addresses relief valve issues where it does not return to the original pressure setting after opening.
Discusses relief valve opening when the control valve is locked out, possibly due to a blocked sensing valve.
Troubleshoots issues with obtaining the correct setting on the relief valve, possibly due to wrong procedure or blocked strainers.
