Operation (Continued)

MOTOR/PUMP ROTATION

1.Single phase models are one (1) rotation only (counter- clockwise when facing the pump end) and cannot be reversed.

2.Proper rotation of pump impeller is critical for three phase pumps. Pump motor should turn counterclockwise (CCW) when facing pump end. Momentarily “bump” (apply power for less than a second) the motor to check for proper rotation. To change rotation on three phase units, interchange any two (2) incoming line (power) leads.

Do not go over recommended maximum operating pressure (see Specifications), while maintaining minimum flow of 1.5 GPM thru the pump. Do not restrict the inlet line to the pump.

If driver (electric motor) is overloaded, a valve can be installed in the discharge line to increase the back pressure and reduce driver loading.

START - UP PROCEDURE

Once the preceding instructions have been completed, the pump can be started.

1.During the first few hours of operation, inspect the pump, piping and any auxiliary equipment used in connection with the unit.

2.Check for leaks, excessive vibration or unusual noises.

IL0539

Figure 12 - Correct Motor/Pump Rotation (all units)

NOTE: See rotation arrow on inlet casting.

Maintenance

Disconnect power supply and depressur- ize system before servicing pump or removing any compo- nent.

ROUTINE

Pump should be checked routinely for proper operation. Replace or clean all filters and line strainers on a regular basis.

DRAINING

This pump cannot be completely drained because of internal design. Most of the liquid can be drained by tilting the discharge forward after removing discharge casting; or, the liquid can be drained through the inlet port. Store in heated areas.

CLEANING

If used for spraying insecticides, pump should be thoroughly flushed with clean water after using.

LUBRICATION

The motor has prelubricated bearings. No lubrication is required.

SERVICING THREE-PHASE UNITS

Loctite (thread sealer) is used on the threads between the motor shaft and the pump shaft coupling. When reassem-

bling, reapply thread sealer.

PUMP DISASSEMBLY

To disassemble the pump, refer to the exploded parts view, Figures 17 & 18 Tools Required

•Block of wood (2” x 4” x 12”) Piece of 3/4” pipe (12” to 24” long)

•Pipe wrench

•Strap wrench

•1/4” Dowel rod (about 24” long)

•9/16” Open end wrench

•3/8” Open end wrench

1.To stabilize pump during disassembly, place block of wood underneath pump barrel.

2.Thread pipe into pump inlet port. This acts as a handle.

3.Using the pipe wrench, remove the discharge head, turn- ing CCW (counter clockwise).

4.With the strap wrench, loosen the barrel, turning CCW (counter clockwise). DO NOT use pipe wrench on pump barrel.

5.Holding the impeller stack in place, position pump in upright position, standing unit on the motor end cover.

6.Use the 1/4” dowel rod to hold the stages down and in place on the pump shaft. Remove pump barrel.

7.Slide the stages off the pump shaft onto the 1/4” dowel rod. Leave stages on rod and carefully set aside.

NOTE: There may be some small .010” shim washers located next to the pump shaft coupling. Keep these shims for re- assembly.

8.Through the side opening of the mounting frame, hold the motor shaft with 9/16” wrench. Remove the shaft and coupling from the motor using the 3/8” wrench on the hex shaped pump shaft.

NOTE: If the hex shaft comes free, leaving the coupling attached to the motor, use vise grips to free the coupling.

MECHANICAL SEAL REPLACEMENT

1.Follow instructions under “Pump Disassembly”.

2.Remove the mechanical seal assembly.

a.The rotary portion of the seal assembly (carbon ring, Buna-N gasket and spring will slide easily off the end of shaft).

b.Using two (2) screwdrivers, pry the ceramic seal and rub- ber gasket from the recess of the mounting ring (See Figure 14).

The precision lapped faces of the mechanical seal are easily damaged. Handle the replacement seal carefully. Short seal life will result if seal faces (ceramic & carbon) are nicked, scratched or dirty.

3.Clean the seal cavity of the mounting ring and the motor thoroughly.

4.Wet outer edge of rubber cup on ceramic seat with liquid soap solution. Use sparingly (one drop only).

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FLINT & WALLING, INC. • 95 North Oak St. • Kendallville, IN 46755 • www.flintandwalling.com