79907 | TN1 MIXER TANK PUMP INSPECTION P.M.
Use this procedure to check the bearing temperature, lubricant level, and vibration. Mechanical seals to show no sign of leakage, packing to leak at the rate of 40-60 drops/min. Overall vibration – visual, sound, touch analysis.
MaintainX
05/15/2022
79907 | TN1 MIXER TANK PUMP INSPECTION P.M.
Use this procedure to check the bearing temperature, lubricant level, and vibration. Mechanical seals to show no sign of leakage, packing to leak at the rate of 40-60 drops/min. Overall vibration – visual, sound, touch analysis.
Date
Equipment ID#
Location
Crew Member
Downtime/Runtime
Inspect pump for noisy bearings and cavitation
Inspect pump for unusual vibration
Inspect pump for unusual temperature
Inspect pump for leaks in pump or piping
Inspect pump for pressure gauge readings if applicable.
Check drive belts for wear, tension.
Visually inspect all flat gaskets on drain/fill plugs
Visual inspection of equipment general condition
Determine if pump unit requires general cleaning
Check function of backflow valve.
Anytime a pump is opened, inspect the running clearances, and restore them to original specifications if the running clearances have doubled. (adjust ring clearances if so supplied or install new wear rings) (Repair check only)
Packing box – verify slight leakage (if excessive, adjust gland or seal
Check Shaft Seal Condition. (Annotate any signs of leak or deterioration).
Drain lines are working properly
Check pulley alignment and integrity
Tightness of foundation and hold-down bolts
Clean packing box
Verify free movement of packing glands (packed pumps)
Drive Shaft – check the shaft for any evidence of corrosion or wear and straightness. Noting that the maximum total indicator reading (TIR) at the sleeve journal and coupling journal should not exceed 0.002 inches
Shaft and Sleeve – inspect for grooves or pitting. Check bearing fits and shaft runout and replace the shaft and sleeve if worn or if the shaft runout is greater than 0.002 inches (repair inspection only).
Impeller – inspect the impeller for wear, erosion, or corrosion damage. If the vanes are bent or show wear more than 1/8-inch deep, replace the impeller. (downtime or repair inspection only)
Replace packing (all packing; not just the outermost ring as needed)
Remove packing and inspect sleeve(s). Replace if worn. (packed Pumps as needed)
Verify free movement of packing glands (packed pumps)
Do an oil change out, if required. (quarterly minimum)
Apply a light coat of rust preventive product to expose machined surfaces to prevent rust and
Inspect operation of all valves in system.
For oil lubricated bearings – use non-foaming and non-detergent oils. Fill the oil to the midpoint of sight glass. Over-lubrication is just as dangerous as under-lubrication
Check bearing oil for water and discoloration.
Replace guards (repair if required).
For re-greaseable bearings – avoid mixing greases of different consistencies or types. Make sure the bearings are completely clean to prevent contamination
Source: MaintainX (Community Member)