Maintenance Guidelines--Recommended preventive maintenance checks for centrifugal pumps and drives

Maintenance Guidelines,
Machinery Reliability Programs

style='mso-tab-count:3'> style='font-family:Garamond;color:black'>For a complete book contact: style='font-family:Times'>

style='font-family:Garamond;color:black'>Luis F. Rizo, PE style='mso-tab-count:4'>

style='mso-tab-count:1'> style='font-family:Garamond;color:black'> 4
Mates Way, Waterford,
New York 12188-1165

style='font-family:Garamond;color:black'>Phone: 518-371-0683; Fax:
518-371-0683

style='font-family:Garamond'>http://www.elfer.com style='font-family:Garamond;color:black'>

0in;margin-left:-22.5pt;margin-bottom:.0001pt'> font-family:Garamond;color:black'>8.2 yes"> Recommended preventive maintenance checks
for centrifugal pumps and drives color:black'>

border-collapse:collapse;mso-table-layout-alt:fixed;border:none;mso-border-alt:
solid windowtext .75pt;mso-padding-alt:0in 5.4pt 0in 5.4pt'>

EN-US;mso-fareast-language:EN-US'>
line-break;page-break-before:always'>

border-collapse:collapse;mso-table-layout-alt:fixed;border:none;mso-border-alt:
solid windowtext .75pt;mso-padding-alt:0in 5.4pt 0in 5.4pt'>

padding:0in 5.4pt 0in 5.4pt'> Yearly style='color:black'>	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Uncouple from pump & overspeed turbine. Ensure that trip valve will stop turbine with steam supply valve (throttle valve) fully open. Compare tripping speed with previous records. Adjust trip mechanism & repeat procedure. Follow manufacturer?s instructions when making adjustments.		border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Yearly style='color:black'>	border-left:none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Where the process will allow it, test run the turbine coupled to the pump. yes"> When not possible, run the turbine uncoupled. style="mso-spacerun: yes"> With a tachometer style='font-family:Symbol;color:black;mso-char-type:symbol;mso-symbol-font-family: Symbol'>- style='color:black'> verify proper governor operation & control. style="mso-spacerun: yes"> Determine if hand (booster) valves are completely closed when required to carry load. yes"> This influences steam economy.		border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-left:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Seasonal		style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
padding:0in 5.4pt 0in 5.4pt'> Fall & Summer style='color:black'>	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Do a seasonal oil change out, if required by OEM lubrication guide.		border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Fall	border-left:none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Where cooling water is decommissioned, ensure that no water remains in the jackets, coolers and piping.		border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Fall	border-left:none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Inspect for damaged or missing insulation		border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Fall style='color:black'>	border-left:none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Reestablish steam flow or electrical tracing continuity.		border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>

border-collapse:collapse;mso-table-layout-alt:fixed;mso-padding-alt:0in 5.4pt 0in 5.4pt'>

Illustrations
of maintenance checks¹

style='color:black'>

style='font-size:11.0pt;color:black'>1. Oil level check style='color:black'>

style='font-size:11.0pt;color:black'>2. Re-greasing of bearings

style='color:black'>

avoid'>

style='font-size:11.0pt'>3. Shaft to bearing housing face runout style='color:black'>

avoid'>

style='font-size:11.0pt'>4. Shaft end play measurement black'>

style='color:black'>

¹ style='color:black'> Pictures courtesy of Goulds Pumps

style='color:green'>HOME PAGE [2] style='color:black'>

Deck:

Machinery Reliability Programs

By Line:

Luis F. Rizo, PE

Activation Date:

May 1, 2003

Files:

checklist.pdf [6]

Legacy

Legacy ID:

14065

border-bottom:none;padding:0in 5.4pt 0in 5.4pt'> Interval style='font-size:11.0pt;font-family:Garamond;color:black'>	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> font-family:Garamond;color:black'>Routines	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='font-size:8.0pt;font-family:Garamond;color:black'>Date/Initial
border-bottom:none;padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Check pump for noisy bearings and cavitation.	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Check bearing oil for water and discoloration.	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Feel all bearings for temperature.	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Inspect bearings and oil rings through filling ports. yes"> Wipe bearing covers clean.	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Check oil leaks at the gaskets.	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Self flush pumps - Hand check the flush line temperature to determine flow through the line. External flush pumps - Determine if flow indicator and needle valve adjustment are functioning properly.	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;border-right:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Determine if the mechanical seal conditions are normal.	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Check any water cooling for effective operation. yes"> Hand test differential across coolers, jackets and exchangers. Disassemble and clean as required.	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;border-right:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Check the operability of the heat tracing.	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Determine if steam leakage at packing and glands is normal.	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;border-right:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Daily style='color:black'>	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Check for leaks at pressure casing and gaskets. yes"> Determine if steam traps are operating properly - no continuous blow & water in casing or drain.	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
padding:0in 5.4pt 0in 5.4pt'> Monthly	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Add oil to the bearing reservoirs, if required.	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;border-right:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Monthly	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Clean oiler bulbs and level windows as required.	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
padding:0in 5.4pt 0in 5.4pt'> Monthly	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Make sure that the oil level is the correct distance from the shaft centerline. Adjust if necessary.	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;border-right:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Monthly	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Clean out debris from bearing brackets. Drain hole must be open.	mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-bottom:none;padding:0in 5.4pt 0in 5.4pt'> Monthly	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Change oil in hydraulic governors.	border-left:none;border-bottom:none;border-right:solid windowtext .75pt; mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
padding:0in 5.4pt 0in 5.4pt'> Monthly	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Determine if hydraulic governor heater is working.	border-left:none;mso-border-left-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Monthly	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Check for proper oil level & leaks at hydraulic governor. style="mso-spacerun: yes"> Check for oil leaks at lines, fittings & power piston.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Monthly	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Replace guards (repair if required).	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Monthly	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Determine if pump unit requires general cleaning by others.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> 6 Months style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Machines not running - Standby service: Overfill bearing housing to bottom of the shaft and rotate several turns by hand to coat the shaft and the bearing with oil.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> 6 Months style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Apply a light coat of rust preventive product to expose machined surfaces to prevent rust and corrosion.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> 6 Months style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Clean & oil governor linkage & valve stems.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> 6 Months style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Exercise overspeed trip & valve steam linkage on turbines not running.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Yearly style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Thoroughly inspect disc coupling for signs of wear & cracks in laminations. style="mso-spacerun: yes"> Tighten bolts.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Yearly style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Using a dial indicator, check the coupling alignment with the equipment coupled. Use special coupling indicator clamps where possible. Ensure that thermal growth allowance is correct.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Yearly style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Using an indicator clamped on the coupling, depress and lift on each coupling and note the dial indicator change. Determine if the deflection is normal for this machine. style="mso-spacerun: yes"> Refer to OEM manual.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Yearly	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Using an indicator, check axial float of the pump & the driver shaft in similar manner.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Yearly style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Remove turbine sentinel valve. Shop test & adjust to proper setting.	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Yearly style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Inspect trip and throttle valve stems and their linkages for wear. style="mso-spacerun: yes"> Check over-speed mechanism for wear. (Turbine must be down).	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>
border-top:none;mso-border-top-alt:solid windowtext .75pt;padding:0in 5.4pt 0in 5.4pt'> Yearly style='color:black'>	none;border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> Remove mechanical the governor cover & inspect flyball seat, spring, bearing & plunger for wear.	border-bottom:solid windowtext .75pt;border-right:solid windowtext .75pt; mso-border-top-alt:solid windowtext .75pt;mso-border-left-alt:solid windowtext .75pt; padding:0in 5.4pt 0in 5.4pt'> style='color:black'>

Maintenance Guidelines--Recommended preventive maintenance checks for centrifugal pumps and drives

Maintenance Guidelines, Machinery Reliability Programs

Maintenance Guidelines,
Machinery Reliability Programs