Pump Mounting and Drive Arrangements

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Madison Melton
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1 Pump Mounting and Drive Arrangements September 2003 Slide 2-2-1

2 Six Methods Auxiliary engine Power take-off Front-mount Midship transfer Rear-mount Hydrostatic September 2003 Slide 2-2-2

3 Auxiliary Engine Driven Pumps Portable Skid-mount Permanent mounting Airport rescue and fire fighting (ARFF) vehicles Wildland fire apparatus Mobile water supply apparatus Trailer-mounted fire pumps Portable fire pumps September 2003 Slide 2-2-3

4 September 2003 Slide 2-2-4

5 September 2003 Slide 2-2-5

6 Auxiliary Engine Driven Advantages Pumps Pump speed independent of vehicle speed Pump and roll capability Pump can be carried to a source of water Disadvantages Limited pressure and capacity Additional engine to maintain Extra supply of fuel, or two types of fuel September 2003 Slide 2-2-6

7 Power Take-off Pumps Gear assembly mounted on the side of the transmission Flywheel mounted September 2003 Slide 2-2-7

8 Power Take-off Pumps Advantages Pump and roll capabilities Pumps for different applications Disadvantages Pump size limited unless flywheel mounted September 2003 Slide 2-2-8

9 Front-mount Pumps Power is supplied through a coupling and/or clutch arrangement attached to crankshaft Generally mounted between the frame rails and in front of grill September 2003 Slide 2-2-9

10 September 2003 Slide

11 Front-mount Pumps Advantages Simplified linkage and controls Pump is independent of drive wheels Can pump while moving Disadvantages Size of pump is limited While moving, pump discharge depends on engine speed Components are susceptible to freezing September 2003 Slide

12 Midship Pumps Also known as split-shaft shaft pumps Most common application in fire service Power source is main engine in the vehicle Power is transmitted from the engine through the vehicle transmission to the pump gearbox When the pump is engaged, power is redirected from the rear axle to fire pump September 2003 Slide

13 Pump Engagement Pump engagement is done either electrically, manually, air actuated or vacuum operated Gear selection manufacturer's recommendations Manually engage/disengage pump September 2003 Slide

14 Midship Pumps Advantages Full engine power is available Pump size is unlimited Disadvantages Power to rear wheels is disconnected Complex mechanical operation Need a backup system to engage pump September 2003 Slide

15 September 2003 Slide

16 Rear-mount Pumps Pump located in rear of apparatus Powered by either Power take-off Split-shaft transmission September 2003 Slide

17 Rear-mount Pumps Advantages Provides a more even weight distribution on chassis Allows for more compartment space Disadvantage Operator exposed to oncoming traffic September 2003 Slide

18 Hydrostatic Driven Pumps Primarily used on interface engines Powered from hydraulic pump driven directly off the chassis crankshaft Four components in hydraulic system Hydrostatic pump Hydrostatic motor Hydraulic reservoir Pump control September 2003 Slide

19 Hydrostatic Pump Mounted behind front bumper and in front of radiator Driven by a drive shaft attached to the crankshaft of the apparatus engine September 2003 Slide

20 Hydrostatic Pump Reservoir September 2003 Slide

21 Hydrostatic Motor Mounted forward of the fire pump between chassis frame rails Provides the power necessary to turn the pump shaft of the fire pump September 2003 Slide

22 Hydrostatic Motor Fire Pump September 2003 Slide

23 Hydraulic Reservoir Mounted adjacent to hydrostatic pump September 2003 Slide

24 Pump Control Activates the hydraulic system and sets the desired pressure/flow during pumping operations Can be done during stationary and mobile pumping operations September 2003 Slide

25 Pump Control September 2003 Slide

26 Operation Stationary pumping Activate high idle switch Rotate pump control knob to desired pump pressure Mobile pumping Rotate pump control valve to desired pump pressure No more than 100 psi September 2003 Slide

27 Hydrostatic Driven Pumps Advantages Pump-and and-roll capabilities One of the simplest pump systems to operate Disadvantages Limited to pump size Very noisy September 2003 Slide

MGA and RGA SERIES SPLIT-SHAFT PTO DRIVE GEARBOX INSTALLATION MANUAL

MGA and RGA SERIES SPLIT-SHAFT PTO DRIVE GEARBOX INSTALLATION MANUAL 11/07/2008 MGA and RGA SERIES SPLIT- PTO DRIVE GEARBOX All Hale products are quality components: ruggedly designed, accurately machined, precision inspected, carefully assembled and thoroughly tested.