11. Maintenance Summary

11. Maintenance Summary

 

MAINTENANCE TASKS

DAILY

WEEKLY

MONTHLY

ANNUALY

Every 2 years

Drain and clean filtrate tank V-170

X

 

 

 

 

Inspect to make sure all polymer distribution lines are clear and free flowing

X

 

 

 

 

Inspect screen for tares or damages

X

 

 

 

 

Drain and clean screw press liquid tank       V-130

X

 

 

 

 

Check and grease bearings (Microscreen chain drive)

 

X

 

 

 

Check gearbox oil level

 

X

 

 

 

Check/clean grōControl sensors

 

X

 

 

 

Check spray nozzles, clean as required

X

 

 

 

 

Clean level sensor in V170

 

 

X

 

 

Enter log sheet into system into system

X

 

 

 

 

Change gearbox oil

 

 

 

X

 

Clean screw press

 

 

X 

as required

 

 

Optimize floc tank mixer speed

 

X

 

 

 

Oil change on screw press gearbox

 

 

 

 

X

Grease screw press

 

 

X

 

 

Grease pillow block bearings

 

 

X

 

 

Remove and power wash screw press screen

 

X

 

 

 

Check electrical service voltages (Main Service, Control Power, and 24VDC Power Supply) annually

 

 

 

X

 

Polyfast Unit

 

 

 

 

 

Check all bolt connections on equipment and tighten as required.

 

 

X

 

 

Wetting Cone Funnel check for Flocculant build-up

X

 

 

 

 

Calibrate Feeder (for performance or change of product) .

 

X

 

 

 

Seals/Packing for Screw Feeder - replace packing and seals if necessary.

 

 

 

X

 

Wiring Connections - Re-tighten all wiring terminations

 

 

 

Every

6 mths

 

Flow Meter Annually Calibrate if necessary.

 

 

 

 

X

 

Inspect screw feeder outlet and remove\clean polymer buildup

X

 

 

 

 

Clean wetting cone

 

 

X

 

 

Drain air compressors moisture daily

X

 

 

 

 

Check operation of dry hopper level switch

X

 

 

 

 

Mix & Holding Tanks - Check for buildup in tank & clean

 

 

 

Every

6 mths

 

Grundfos\Summit \Netzsch Pumps\Rotech

 

 

 

 

 

Check that pump is operating smoothly and quietly.

 

X

 

 

 

Check that there are no leaks, particularly at the shaft seal.

 

X

 

 

 

Check that the motor is not overheating.

 

X

 

 

 

Remove and clean all strainers or filters in the system

 

X

 

 

 

Check that motor is clean, interior and exterior of motor are free of dirt, oil, grease, water, etc.

 

X

 

 

 

Use ohmmeter to ensure winding insulation resistance has not dropped.

 

 

 

Every

6 mths

 

Check all electrical connections to ensure they are tightened securely

 

 

 

Every

6 mths

 

Netzsch Pumps (in addition to above)

 

 

 

 

 

Pumps rinsed or cleaned if deposits of process material build up (sand, manure, etc).

 

X

 

 

 

Shut pump down to clean – through the cleaning ports provided in the pump housing

 

 

X

 

 

Flow Meters

 

 

 

 

 

Clean Meters -  cleaning agents must not corrode the surface and the seals.  Avoid mechanical damage to the process isolating diaphragm, e.g. due to pointed objects.

 

X

 

 

 

Note: 

OEM maintenance information on components can also be found by looking for site specific equipment manuals online.

This list is for First Wave equipment only.

Sites should develop site specific SOPs as required.

All maintenance activities must be completed as scheduled to retain warranty coverage.


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