Before Start-up
Safety
▲Caution
Temporary safety barricades should be placed around any exposed openings in the operating (or nonoperating) tower, safety harnesses should be worn by personnel where appropriate, and other safety precautions should be taken in compliance with OSHA regulations and standards.
Cleaning
Clean any nozzles that are clogged. Remove any sediment from the cold water basin, sump and screens. Use a water hose to flush cold water basins.
If you are restarting or recommissioning a previously used tower, see Warning note on page 17.
Inspection
It is imperative that all operating assemblies be inspected before they are placed in operation. The following is a list of components to be checked before starting the tower:
•Check drive shaft alignment. Realign if necessary. See Marley Drive Shaft Service Manual.
•Check tightness of bolts that attach mechanical equipment support to the tower structure. Check tightness of bolts in fan cylinder joints and fan cylinder anchorage.
•Check concrete structural surfaces for spalling and cracks. Repair as necessary.
•Check tightness of the following bolted joints in the fan and drive as- semblies:
–Fan hub clamp bolts. See Marley Fan Service Manual for correct torque setting.
–Fan hub cover bolts, where applicable.
–Geareducer® and motor mounting bolts.
–Drive shaft coupling and guard bolts.
•Check Geareducer oil for sludge or water by draining off and testing a sample as outlined in the Marley Geareducer Service Manual. Check Geareducer oil level at “oil level” mark on the side of the case. Add oil as required. The oil level placard must be adjusted so that its “full” mark is at the same elevation as the “full” mark on the side of the Geareducer case. Check oil lines to be sure there are no leaks and all joints are tight.
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