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375 SE
800-00162
2. Indirect Drive
Indirect drive is not recommended for these pumps.
C. SHAFT ROTATION
C. SHAFT ROTATION
C. SHAFT ROTATION
C. SHAFT ROTATION
C. SHAFT ROTATION
NOTE:
NOTE:
NOTE:
NOTE:
NOTE: Pumps are normally assembled for right-hand (clockwise) rotation as viewed from the shaft end. A
pump made for left-hand rotation is identified by an “L” in the model code. If it is desired to reverse
the direction of drive rotation, it is necessary to disassemble the pump and reverse the location of
the cartridge inlet and outlet support plates. (See Section VI).
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
NEVER DRIVE A PUMP IN THE WRONG DIRECTION OF ROTATION.
NEVER DRIVE A PUMP IN THE WRONG DIRECTION OF ROTATION.
NEVER DRIVE A PUMP IN THE WRONG DIRECTION OF ROTATION.
NEVER DRIVE A PUMP IN THE WRONG DIRECTION OF ROTATION.
NEVER DRIVE A PUMP IN THE WRONG DIRECTION OF ROTATION.
SEIZURE MAY RESULT, NECESSITATING EXTENSIVE REPAIRS.
SEIZURE MAY RESULT, NECESSITATING EXTENSIVE REPAIRS.
SEIZURE MAY RESULT, NECESSITATING EXTENSIVE REPAIRS.
SEIZURE MAY RESULT, NECESSITATING EXTENSIVE REPAIRS.
SEIZURE MAY RESULT, NECESSITATING EXTENSIVE REPAIRS.
D. PIPING AND TUBING
D. PIPING AND TUBING
D. PIPING AND TUBING
D. PIPING AND TUBING
D. PIPING AND TUBING
1. All pipes and tubing must be thoroughly cleaned before installation. Recommended methods of cleaning are
sandblasting, wire brushing, and pickling.
2. To minimize flow resistance and the possibility of leakage, use only as many fittings and connections as are
necessary for proper installation.
3. The number of bends in tubing should be kept to a minimum to prevent excessive turbulence and friction of
oil flow. Tubing must not be bent too sharply. The recommended radius for bends is three times the inside
diameter of the tube.
E. OVERLOAD PROTECTION
E. OVERLOAD PROTECTION
E. OVERLOAD PROTECTION
E. OVERLOAD PROTECTION
E. OVERLOAD PROTECTION
A relief valve must be installed in the system as close to the pump outlet as possible. The relief valve limits pressure
in the system to a prescribed maximum and protects the components from excessive pressure. The setting of the
relief valve depends on the work requirements of the system.
F. PORT POSITIONS
F. PORT POSITIONS
F. PORT POSITIONS
F. PORT POSITIONS
F. PORT POSITIONS
The pump cover can be assembled in four positions with respect to the body. A letter in the model code identifies
the cover position.
Disassembly and assembly procedures are in Section VI-B and D.
G. START-UP
G. START-UP
G. START-UP
G. START-UP
G. START-UP
Whenever it is possible to do so, fill the pump ports with system hydraulic fluid. This will make it easier for the pump
to prime when it is first started.
Self-Priming-With a minimum drive speed of 600 RPM, a pump should prime almost immediately. Failure to prime
within a reasonable length of time may result in damage due to lack of lubrication. Inlet lines must be tight and free
from air leaks. However, it may be necessary to crack a fitting on the outlet side of the pump to purge entrapped
air.
No Load Starting-These pumps are designed to start up with no load on the pressure ports. They should never be
started against a load or a closed center valve. See Figure 5c.
FIGURE 5C
FIGURE 5C
FIGURE 5C
FIGURE 5C
FIGURE 5C
SINGLE PUMP MAINTENANCE CONTINUED...
