HAYWARD GORDON LTD
Page
2
Rev:
1
HRF Series Mixers
Date 11/99
Section: RF
Open tank models
are mounted separately from the tank on a steel structure. These units
include an integral lip seal and bearing cartridge in the base plate.
Stuffing box models
mount with a standard ANSI flange to a nozzle or pad directly on the vessel.
Mechanical seal models
mount with a standard ANSI flange to a nozzle or pad directly on the
vessel. EXTREME CARE SHOULD BE TAKEN IN HANDLING AND IN INSTALLING TO
ENSURE THAT THE SHAFT IS NOT JARRED, CAUSING DAMAGE TO THE DELICATE
MECHANICAL SEAL PARTS.
MOUNTING
Mixers are mounted in the vertical position only and care should be taken to level the support
structure or nozzle.
The mixer itself has been designed to accept the bending moments and torque reactions
produced by the impeller(s) operating in the fluid. These loads will be transmitted to the support
and therefore the mounting system must be strong enough to support all the loads produced by
the mixer. The support structure must also be rigid enough to prevent dynamic deflections greater
than 0.25° in any direction. Size the support structure to accommodate the bending moment,
torque reaction and static weight shown on the general arrangement drawing.
MOTORS
Ample circulation of air during operation is very important in obtaining full performance and long
life from an electric motor. Minimize obstructions to free circulation in areas where motors are
installed. Avoid choking off the suction inlets on fan cooled motors. The life of the motor will be
decreased if its temperature during operation exceeds its nameplate ambient rating.
Overload protection should always be provided to avoid motor damage during temporary
overloads, jams or other mishaps.
Prior to permanently wiring the electric motor, check the output shaft rotation with the rotation
indicated on the drive nameplate. DO NOT OPERATE UNIT WITHOUT CHECKING ROTATION.
For standard 3 phase motors the rotation may be reversed by changing any two leads. For
complete details, refer to the attached manufacturer's manual.
GEAR DRIVES
The gear drive has been shipped from the factory filled with the proper grade and quantity of oil.
The reducer is provided with a red painted level plug, a drain plug located at its lowest spot and a
blue painted plug indicating the location for the breather. The breather is shipped in a plastic bag
attached to the gearbox. In the case of gear motors the breather plug is shipped inside the motor
terminal box. When the installation of the drive is completed, the blue plug, located at the highest
