page 64
page 64
page 64
page 64
page 64
375 SE
800-00162
I. - INTRODUCTION
I. - INTRODUCTION
I. - INTRODUCTION
I. - INTRODUCTION
I. - INTRODUCTION
A. PURPOSE OF MANUAL
A. PURPOSE OF MANUAL
A. PURPOSE OF MANUAL
A. PURPOSE OF MANUAL
A. PURPOSE OF MANUAL
This manual is to assist users of single pumps in properly installing, maintaining and repairing their units. The single
pumps are described in detail.
Their theory of operation is discussed and instructions for installation, maintenance, and overhaul are presented.
B. GENERAL INFORMATION
B. GENERAL INFORMATION
B. GENERAL INFORMATION
B. GENERAL INFORMATION
B. GENERAL INFORMATION
Service parts information and installation dimensions are not contained in this manual.
II. - DESCRIPTION
II. - DESCRIPTION
II. - DESCRIPTION
II. - DESCRIPTION
II. - DESCRIPTION
A. GENERAL
A. GENERAL
A. GENERAL
A. GENERAL
A. GENERAL
Pumps in this series are used to develop hydraulic fluid flow for the operation of Industrial and Mobile equipment. The
positive displacement pumping cartridges are of the rotary vane type with shaft side loads hydraulically balanced. The
flow rate depends on the pump size and the speed at which it is driven.
All units are designed so that the direction of rotation, pumping capacity and port positions can be readily changed to
suit particular applications.
B. ASSEMBLY AND CONSTRUCTION
B. ASSEMBLY AND CONSTRUCTION
B. ASSEMBLY AND CONSTRUCTION
B. ASSEMBLY AND CONSTRUCTION
B. ASSEMBLY AND CONSTRUCTION
1. Basic Pumps
The pump illustrated in Figure 1 is representative of all single pumps in this series.
Fluid enters the cartridge through the inlet port in the cover and is discharged through the outlet flex side plate and support
plate to the outlet port in the body.
III - PRINCIPLES OF OPERATION
III - PRINCIPLES OF OPERATION
III - PRINCIPLES OF OPERATION
III - PRINCIPLES OF OPERATION
III - PRINCIPLES OF OPERATION
A. PUMPING CARTRIDGE
A. PUMPING CARTRIDGE
A. PUMPING CARTRIDGE
A. PUMPING CARTRIDGE
A. PUMPING CARTRIDGE
As mentioned in Section II, fluid flow is developed in the pumping cartridge. The action of the cartridge is illustrated
in Figure 2. The rotor is driven within the ring by the driveshaft, which is coupled to a power source. As the rotor turns,
centrifugal force on the vanes, aided by under-vane pressure fed from the outlet port, causes the vanes to follow the
elliptical inner surface of the ring.
Radial movement of the vanes and turning of the rotor causes the chamber volume between the vanes to increase as
the vanes pass the inlet sections of the ring. This results in a low pressure condition which allows atmospheric pressure
to force fluid into the chambers.
An additional inlet fluid path exists through a drilled hole in the cam ring. This hole connects inlet port directly to inlet
areas of cam ring and provides an additional flow path for fluid to get into the cartridge.(See Figure 1).
Fluid is trapped between the vanes and carried past a sealing land to the outlet section of the ring. As the outlet section
is approached, the chamber volume decreases and the fluid is forced out into the system. System pressure is fed under
the vanes, assuring their sealing contact against the ring during normal operation.
OPERATION OF BALANCED, VANE-TYPE CARTRIDGE
OPERATION OF BALANCED, VANE-TYPE CARTRIDGE
OPERATION OF BALANCED, VANE-TYPE CARTRIDGE
OPERATION OF BALANCED, VANE-TYPE CARTRIDGE
OPERATION OF BALANCED, VANE-TYPE CARTRIDGE
FIGURE 2
FIGURE 2
FIGURE 2
FIGURE 2
FIGURE 2
PUMP MAINTENANCE (SINGLE)
PUMP MAINTENANCE (SINGLE)
PUMP MAINTENANCE (SINGLE)
PUMP MAINTENANCE (SINGLE)
PUMP MAINTENANCE (SINGLE)
