Installation
28
TT Twin-Screw Pump -
Installation, Operation & Maintenance Manual
1.
Lower the baseplate carefully onto the foundation bolts.
2.
The baseplate will rest on top of the foundation on the jackscrews provided on the baseplate.
3.
Adjust the leveling jackscrews, located adjacent to the foundation bolt holes, until the
baseplate rests 1” to 2” (25mm to 50mm) above the foundation in order to allow adequate
space for grouting.
4.
Level the baseplate machined equipment mounting pads to within 0.002” per ft (0.167
mm/m) of the length and width of the baseplate by adjusting the jackscrews. Use a precision
machinist’s level with a graduation sensitivity of 0.0001” per 10” (0.0025mm per 250mm),
or an equivalent laser system for this task. The maximum allowable total variation from end
to end or side to side of the baseplate, regardless of baseplate size, is 0.015” (0.38mm).
5.
Wrap the portion of the jackscrew exposed below the baseplate with electrical tape and then
coat with paste wax. This facilitates removal of the jacking screws after grouting.
6.
Do not use oils or liquid wax.
7.
Install washers and then thread the nuts onto the foundation bolts and hand-tighten.
WARNING:
It is to be noted that conventional baseplates have to be installed and grouted on
foundation with pump and motor removed. Only then should pump and motor shall be
installed and aligned.
Install the pump, driver, and coupling
1. If the pump is not already on the baseplate, mount and fasten the pump on the baseplate
using the fasteners provided.
2. If the driver is not already on the baseplate, mount and fasten the pump on the baseplate
using the fasteners provided. Hand tighten the fasteners.
3. Install the coupling. See the installation instructions from the coupling manufacturer.
Pump-to-driver alignment
Precautions
WARNING:
Failure to disconnect and lock out driver power may result in serious physical injury or death.
Always disconnect and lock out power to the driver before performing any installation or
maintenance tasks.
Refer to driver/coupling/gear manufacturer's installation and operation manuals (IOM) for
specific safety instructions, requirements and recommendations.
Alignment methods
There are three common alignment methods that can be used:
•
Dial indicator
•
Reverse dial indicator
•
Laser
