Gusher Pumps Pump 3×4

Disconnect coupling (#32) and remove sleeve (#32a)

Loosen three locking screws (#57)

Loosen three adjusting screws (#55)

Lightly tap shaft (#1) until impeller bottoms on the intake flange

Tighten three adjusting screws by hand until they touch ball bearing housing

Tighten three adjusting screws just up to the point where the shaft turns freely; then tighten each screw an additional ¼ turn

Tighten locking screws (#57) and jamb nuts (#56)

Remove four motor retaining bolts

Break welds loose that hold discharge pipe cover plate to mounting plate

Remove bolts & nuts that hold discharge pipe to impeller housing

Chair and Drive Motor: 52VHD Power Frame

Measure and record the discharge pressure

Measure and record the flow rate

Measure and record the motor amp draw

Describe the location of the pressure gauge in relation to the liquid level

Verify if the mounting plate height is at least 1" above the highest possible liquid level

Check if the liquid level is at least 2" above the point at which the shaft exits the top of the pump end

Test shaft rotation for clockwise direction

Ensure pump is shut down before lubrication

Verify that grease types are not mixed

Ensure Chevron SRI #2 ball bearing grease or equivalent is used

Verify that bearings do not run over 225°F

Remove relief from back of ball bearing housing

Fill with grease until fresh grease flows from opening

Is an automatic lubrication system being used?

Place reliefs in the tapped hole (1/8" N.P.T.) if automatic lubrication system is used

INSTALLATION — Coupling Alignment (Chair Mounted Model ONLY)

Verify coupling alignment before and after system start-up

Check Parallel Alignment by placing a straight-edge across the two coupling flanges and measuring the maximum offset at various points around the periphery of the coupling. Realign if offset exceeds .010”.

Check Angular Alignment with a micrometer or caliper. Measure from the outside of one flange to the outside of the other at intervals around the periphery of the coupling. Ensure the difference between maximum and minimum does not exceed .010”.

Ensure all screws are tightened before operating the pump.

Record any issues encountered during the alignment check.

Adjustment Procedures if Coupling Alignment is Out

Adjust Lateral Parallel Misalignment by loosening the four motor retaining bolts and adjusting lateral screws until alignment is achieved. If misalignment exceeds .020”, proceed to step e.

Adjust Horizontal Parallel Misalignment by loosening the four motor retaining bolts and adding or subtracting shims as needed. If more than 0.1875” of shims are required, proceed to step v.