fully adjustable to allow for infinitely variable speed control.
c.
Reservoir and Accessories: The hydraulic reservoir shall be
constructed of steel. The unit shall include a filler/breather
assembly, and a fluid level/temperature gauge and clean-out cover.
The hydraulic reservoir shall be connected to the hydraulic motor
with a hose having a continuous pressure rating greater than the
rating of the hydraulic pump but not less than 20.7 MPa 3000 psi.
2.7.3.3
Mounting
The mixer shall be capable of being raised and lowered from the basin for
ease of repair and maintenance. The mixer shall be mounted on and guided
by a sliding bracket which shall be constructed to withstand all thrust
created by the mixer. A lifting cable and winch mechanism shall be
provided to permit raising and lowering of the mixer on the sliding bracket.
2.8
LUBRICATION REQUIREMENTS
An adequate means of lubrication shall be provided for all moving parts
subject to wear. Except as otherwise specified, lubrication shall be by
grease or oil. Grease fittings shall be provided for all grease-type
bearings. If bearings are not easily accessible, grease tubing shall be
provided in a convenient location. Bearings shall be provided with relief
ports to prevent build-up of pressures which might damage the bearings or
seals. Oil reservoirs shall be liberal in size and shall be provided with
an opening for filling, an overflow opening at the proper location to
prevent overfilling, and a drain opening at the lowest point. Reservoirs
shall be properly vented to prevent pressure build-up.
2.9
ELECTRIC MOTORS
A squirrel-cage induction motor suitable for continuous duty shall be used.
The motor shall have a power rating which will be nonoverloading for any
conditions under which the driven equipment must function.
2.9.1
Frame
The motor frame size shall be selected in accordance with NEMA MG 1.
Motors of the same rating, mounting, and characteristics shall be
interchangeable.
2.9.2
Design
Induction motors shall be Design B as defined in NEMA MG 1, with normal
torque and low starting current.
2.9.3
Enclosure
A totally enclosed fan cooled enclosure shall be provided.
2.9.4
Terminal Boxes
Cast-iron terminal boxes shall be sized for the space required, for the
allowable bending radius and stiffness of the motor supply cables, and for
terminating a grounding conductor. The terminal boxes shall be gasketed
and have threaded conduit entrances or hubs. Terminal boxes shall be
rotatable for connection from any one of four directions at 90 degree
intervals with a motor lead seal and separator gasket provided between the
SECTION 11391
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