Hale MBP Booster - Manual (Page 20)

19 Silencer Series Booster Pump, p/n: 029-0020-83-0
Introduction
❑
Note: Mechanical seals do not drip like older pump packing. A Hale Booster
Pump with a drip from the seal requires service.
WARNING !
IF A PUMP IS OPERATED WITHOUT WATER FOR EXTENDED PERIODS, OR
WITHOUT DISCHARGING WATER, IT COULD OVERHEAT. THIS CAN DAM-
AGE THE MECHANICAL SEAL OR THE DRIVE MECHANISM.
Gearbox
Hale Silencer Series Pumps are equipped with a B Series Gearbox that uti-
lizes helical gears to reduce operating noise. To accommodate a wide
range of engines, transmissions, and PTOs, this speed increasing gearbox
is available in a variety of ratios. All Silencer series pumps feature a stan-
dard water cooler that uses water flowing through the pump to lower gear-
box temperatures when required.
2.4 PUMP DRIVES
Three common booster pump drives are used on fire fighting apparatus:
❑ Operation from a
Power Take-Off
(PTO) from the truck
transmission or drive
train
❑ A stand-alone drive
with separate engine
(auxiliary engine)
❑ Hydraulic motor
Hale booster pumps
produce the volumes
and pressures shown
on their performance
curves. However, max-
imum pump perfor-
mance is sometimes
limited by the power
capacity and speed limits of the engine, transmission, and PTO.
Figure 2-6: Pump/Engine Rotation