HAMAR LASER L-705, Руководство по эксплуатации

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7
Performing a Turbine Alignment
Preparing for an Alignment
There are several preparations that need to be made before beginning a measurement or alignment proc-
ess. Ensure that accurate records are kept for all procedures.
Hardware Preparation
• Determine what hardware is necessary to perform the alignment, including the laser, target, mounting
fixtures, readouts or interface, cables, etc. Make a note of the target model number so that the infor-
mation can be entered into the program setup.
•
If a test or measurement is expected to take more than 3-4 hours, be sure to connect portable
computers, interfaces, and other battery-operated devices to their external power supplies.
•
Observe safety precautions when setting up hardware. Lock out machines for stationary procedures.
If a machine is running, set up barriers and/or warning signs and route all cables away from moving
parts. Clean and check all equipment, fixtures, and mounting surfaces before beginning any
alignment process.
Turbine alignment is usually measured by referencing one bore on each end of the turbine shell and
aligning the internal components to that centerline. In many cases the oil seal housing is measured to the
rotor shaft during disassembly and the alignment is performed based on the oil seal housing by setting the
reference to the offset from the rotor shaft.
Installing the “Pac Man” Magnets
Begin by placing one of each type of magnetic mount
(one straight slot and one rotating slot) on the turbine
shell beside the bearing reference bore, approximately
3 in. (76.2 mm) behind the reference bore with the
slots facing the opposite reference bore. Turn the
handle to lock the magnets.