Geotech 86600149, Installation And Operation Manual

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Section 6: System Maintenance
Maintenance Schedule
It is recommended that the AR4 is pulled from the well annually for inspection and
cleaning to maximize efficiency and pump performance. Depending on the site conditions
routine maintenance may be needed on a more frequent basis.
Disassemble pump by removing the bottom cap and housing. Internal components can be
removed from center pipe with standard hex keys. Further disassembly instruction can be
found in the next section.
Maintenance Operations

Clean any residue or sediment build up on float, housing, and center pipe.
Reducing friction or “sticky” spots along the float’s travel can be beneficial to your
pumps performance.

Ensure that the control lever shifts smoothly between up and down positions.
Remove O-rings and check balls, and inspect check seat for unwanted buildup or
debris.

Inspect inlet and the discharge check valves for wear spots and/or sediment build
up.

Apply a calcium sulfonate grease or similar to all O-ring bearing surfaces of valve
assembly.
Required Tools

3/16” Hex Key Driver used at lower cap and 4” screen removal

9/64” Hex Key Driver used at Valve

1/4" Hex Nut driver used at Hose clamps

Cleaning scrub brush

Center pipe ID brush
Supplies*

Anti-seize used on Lower intake bolt threads

Loctite 242 used on Valve mounting bolts

Detergent for general purpose cleaning

WD40 for lubrication

Heavy duty detergent for all descaling of internal components

PTFE Tape for all pipe threads

Calcium sulfonate grease at O-ring contact points
*Available from your Geotech representative