Bulletin 947023
THE OILGEAR COMPANY
5
PREPARATION AND
INSTALLATION
MOUNTING
Pump Without Reservoir - The pump can be
mounted in any position. But, the recommended
mounting position is with the drive shaft on a
horizontal plane and the case drain port 1 on the
top side. Secure the pump to a rigid mounting
surface. Refer to the referenced Oilgear Piping
Information Bulletin 90011.
Pump With Reservoir - These pumps are usually
fully piped and equipped. It may be necessary to
connect to a super-charge circuit when used.
Mount reservoir on level foundation with the
reservoir bottom at least six inches above floor
level to facilitate fluid changes.
PIPING AND FITTINGS
Refer to the referenced Oilgear Piping Information
Bulletin 90011 and individual circuit diagram before
connecting the pump to the system. Inlet velocity
must not exceed 5 fps (1,5 mps). Inlet should be
unrestricted and have a minimum of fittings.
DO NOT use an inlet strainer.
Arrange line from “case drain” so the case remains
full of fluid (non-siphoning). Case pressure must be
less than 25 psi (1,7 bar). For higher case
pressures, special shaft seals are required; contact
our Customer Service. Each drain line must be a
separate line, unrestricted, full sized and
connected directly to the reservoir below the lowest
fluid level. Make provisions for opening this line
without draining (siphoning) reservoir.
Running the pump in NEUTRAL position
(zero delivery) for extended periods
without a supercharge circuit can damage
the pump. The system and pump must be
protected against overloads by separate
high pressure relief valves. Install bleed
valve(s) at the highest point(s) in system.
POWER
Power is required in proportion to volume and
pressure used. Motor size recommendations for
specific applications can be obtained from The
Oilgear Company. Standard low starting torque
motors are suitable for most applications.
DO NOT start or stop unit under load
unless system is approved by Oilgear. It
may be necessary to provide delivery
bypass in some circuits.
DRIVE
Verify rotation direction plate on the pump's housing.
Clockwise pumps must be driven clockwise and
counterclockwise pumps must be driven
counterclockwise. Use direct drive coupling. Size
and install coupling per manufacturer's instructions.
DO NOT drive the coupling onto the pump
drive shaft. If it is too tight, it may be
necessary to heat coupling for installation.
Refer to manufacturer's instructions.
Misalignment of pump shaft to driver's shaft should
not exceed 0.005 inches (0,13 mm) Total Indicator
Readout (TIR) in any plane.
NOTE
!
WARNING
CAUTION
CAUTION
Service Instructions
