ASSEMBLY-continued - TM-5-4320-255-130009

11. Stand the Housing upright on the Impeller chamber to

5. Slide the Arbor (47), into the larger of the rotor

enter the arbor and motor assembly. If care is used to

orifices, engaging the spline on the Arbor with the

maintain good alignment, the assembly will slide

mating internal spline in the Rotor (42).

readily into position. Never drive or otherwise force

6. After installing a Vane (11) in each vane slot, place the

the motor into the Housing.

Cylinder (43) over the Rotor and onto the Front End

12. Slide the Housing Gasket (15) over the face and

Plate, positioning it so that the small hole in the face

of the Cylinder and the notch in the cylinder flange

against the shoulder on the Back Head (36). Slide the

pilot on the Back Head into the Housing, entering the

align with the small hole and notch in the End Plate.

end of the Cylinder Dowel (13), that protrudes from

7. Slip the Rear End Plate (14), crescent grooved side

the Rear End Plate, into the dowel hole in the face of

first, over the end of the Arbor and install the Arbor

the Back Head. Retain by screwing the Housing Nut

Rear Bearing (26).

(16) securely onto the Housing. Rotate the Arbor as

the Housing Nut is tightened. If binding is noted it is

8. Screw the Governor Assembly into the bore of the

usually due to the motor being improperly seated in

Arbor. This is a left-hand thread, turn

the Housing. Striking the Housing a few blows with a

counterclockwise to tighten.

soft hammer will usually jar the motor to a good seat

9. When installing the Water Seals, position the Housing,

and eliminate the binding.

motor end down, and start one of the Water Seals (4),

lip side first, into the housing bore (the spring is visible

13. Lubricate t h e Pump More starting it even

on the lip side). Using a flat faced arbor, whose

momentarily. Without lubrication the Water Seals will

diameter nearly equals that of the Seal, press in the

be quickly damaged.

Seal until its leading face is flush with the bottom of

the small bore in the Housing. Start the second Seal,

14. Check the Arbor speed with a tachometer. If found

lip side up, into the housing bore. Then press in the

incorrect, reset the Governor as stated under

Impeller Hub Bushing (2) until its flange contacts the

"Inspection for Wear or Damage".

housing face. As the Bushing enters the Housing it will

force the second Seal into the proper position.

15. Install the Impeller (56) on the Arbor, and the

10. Insert the Impeller Spacer (45), beveled end first, into

Impeller Cover (52) on the Housing, being sure to

the bore of the Water Seals from the motor end of the

adjust the clearance in accordance with the procedure

Housing. Insert the Arbor Front Bearing Seat (57)

recommended under "Inspection for

Wear

through the motor chamber in the Housing and seat it

Damage".

on the shoulder adjacent to the Water Seal.