Hale MBP Booster - Manual (Page 50)

49 Silencer Series Booster Pump, p/n: 029-0020-83-0
Preventive Maintenance
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Most of these drains are piped together to a multi-drain to allow the entire
system to be drained by one valve.
It is necessary to inspect each line of the multi-drain to ensure the entire
system is draining when the valve is operated. Inspect each connection
and verify the individual lines to the multi-drain are free of debris. Repair or
replace any lines that are damaged, kinked, or corroded.
Tank-to-Pump Flow Rate Test
Note: This procedure is provided as a reference only. It does not supersede any
local procedures.
1. Fill the water tank until it overflows.
2. Close the tank fill line, bypass the cooling line, and all the pump intakes.
3. Attach sufficient hose lines and nozzles to pump the desired discharge rate.
4. With the pump in gear, open the discharge to which the hose is attached and
begin pumping water.
5. Increase the engine throttle until the maximum consistent pressure is obtained
on the discharge gauge.
6. Close the discharge valve without changing the throttle setting. Refill the tank
through the top fill opening or a direct tank line. The bypass valve may be
opened during this time to prevent pump overheating.
7. Reopen the discharge valve, and check the flow through the nozzle using a
Pitot tube or flow meter. Adjust the engine throttle to bring the pressure to the
amount previously determined.
8. Compare the flow rate measured to the NFPA minimum or the designed rate
of the pump. If the flow rate is lower, a problem exists in the tank-to-pump
line. The minimum flow rate should be continuously discharged until 80% of
the tank is discharged.
The pump should not experience mechanical problems, power loss, or over-
heat during the test.