Gusher Pumps Pump 6×8

Installation — Impeller Adjustment

Verify clearance between impeller and housing or intake flange

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

Ensure mounting force is applied against the ring being press-fitted

Avoid forcing the bearing onto a shaft by pressure or hammer blows applied to the other ring

Ensure the bearing is not press-fitted into housing by force applied to the inner ring

Use an arbor press with a face block contacting only the bearing inner ring

Press the shaft through the bearing until it is seated firmly against the shaft shoulder

Ensure the tubing is clean and slightly greater in diameter than the bearing journal

Ensure the end of the tubing is square and contacts only the bearing inner ring

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

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

MAINTENANCE — Lubrication / START UP

Check ball bearing temperature using a pyrometer

Is the ball bearing temperature below 225°F?

Note if bearings seem to run tight and hot upon initial startup

Confirm if the pump operates normally after approximately 150 hours of service