Crane Pumps & Systems Pump SE51HT

Set unit on its side with plug (44) upward

Enter the amount of new oil to refill as per Table 1

Refill with new oil as per Table 1

Apply pipe thread compound to threads of pipe plug (44)

Assemble pipe plug (44) to outer seal plate (29)

Disassemble volute and impeller

Examine shaft seal for wear and damage

Is further repair required for outer seal?

Remove components for further repair

Is the shaft seal being replaced?

Remove stationary member (28a) with flat screwdriver

Inner Seal Disassembly (DS Units Only)

Use a flashlight to inspect the oil in the motor housing

Is the oil milky white, indicating the presence of water?

Is the oil level just above the motor when the pump is in vertical position?

Drain oil from motor as outlined in paragraph F-1.1

Disassemble volute and impeller as outlined in paragraph F-2.1

Disassemble shaft seal as outlined in paragraph F-3.1

Position unit upright using blocks to avoid resting unit on shaft

Unscrew cable hex bolts and remove compression flange and power cord

Remove snap ring with a flat head screwdriver

Pull the terminal block out of the housing using a T-bolt or pair of pliers and a .25-20 screw

Leave slack on the motor leads connected underneath

Remove hex bolts and lockwashers

Lift motor and seal plate assembly from volute

Clean out volute body if necessary

Clean and examine impeller for pitting or wear

Inspect gasket and replace if cut or damaged

Does the impeller need replacing?