DISASSEMBLY - TM-5-4320-255-130008

the Governor was removed. Hold the Cylinder in one

hand (never clamp it in a vise) and strike the rod,

driving the Arbor from the Arbor Rear Bearing (26)

and freeing the Rear End Plate (14), Cylinder (43),

Rotor (42), Vanes (1 1), Front End Plate (8) and

A r b o r Bearing Spring (58). As recommended in

"Disassembly and Assembly" the Arbor Front Bearing

( 4 4 ) , Arbor Bearing Spacer (25), Arbor Packing

Retainers (10) and the Arbor Packing (9) should not

b e removed unless replacement is necessary. To

Also avoid unnecessary removal of the Arbor Packing

remove the Arbor Packing Retainers, which hold the

Retainers (10) and Arbor Packing (9) from the Front End

Packing in place, use the No. P3554 Retainer Pliers.

Plate (8). Arbor Packings are impregnated with tallow. If

new ones are being installed, they must be heated slightly

Unscrew the Grease Chamber Cap (65) from the

Housing and remove the Grease Plunger Spring (63)

so that they can be compressed sufficiently for insertion in

and Grease Plunger (64). Examine the Grease Plunger

the Front End Plate.

Packing (62) and the Grease Chamber Cap Seal (66).

DISASSEMBLY

Replace either if worn or damaged.

Unscrew the Air Strainer Assembly (32) from the

Back Head (36). For cleaning and disassembly of the

ASSEMBLY

A i r Strainer Assembly follow the procedure as

Slip the Grease Chamber Cap Seal (66) over the

recommended in "Preventive Maintenance".

threaded end of the Grease Chamber Cap (65) until it

Unscrew the Impeller Cover Cap Screws (49) and

enters the groove in front of the flange on the Cap.

r e m o v e the Inlet (51), Impeller Cover (52) and

Mount the Grease Plunger Packing (62) on the front

Impeller Cover Shims (53). Unscrew the Arbor Nut

face of the Grease Plunger (64) and retain it with the

( 5 4 ) from the Arbor (47). This can usually be

G r e a s e Plunger Packing Washer (61) and Grease

loosened by a sharp, quick blow on the handle of a

Plunger Packing Washer Cap Screw (59). Slide the

wrench placed upon the Nut. The Impeller (56) can

Plunger, Packing end first, into the Grease. Chamber,

insert the Grease Plunger Spring (63) and screw the

usually be removed by pulling with the fingers while

Cap into the end of the chamber.

lightly striking the threaded end of the Arbor with a

hammer handle or wood block. Remove the Impeller

As stated under "Disassembly and Assembly", the

Key (48) and Impeller Shims (46) from the Arbor.

Arbor Packing must be heated slightly before insertion

i n the Front End Plate. Place an Arbor Packing

Grasp the Housing (1) in a vise. Using a soft hammer.

Retainer (10) followed by the Arbor Packing (9) into

strike the lugs on the Housing Nut ( 16), loosening the

the Front End Plate. Retain by installing the other

Nut. Unscrew the Nut and remove the Back Head (36)

Packing Retainer.

and Housing Gasket (15). Remove the motor assembly

by driving on the threaded end of the Arbor with a

Be sure the Arbor Bearing Spacer (25) is in position

soft hammer. Remove the Impeller Spacer (45) if this

a g a i n s t the shoulder on the Arbor (47) before

part remained in the Water Seals (4). Place the

installing the duplex type Arbor Front Bearing (44).

Housing, motor end down, on the work bench.

Press one bearing component, shielded side first,

Examine the Impeller Hub Bushing (2) and the Water

against the Spacer with a sleeve that will contact only

Seals (4). Do not remove these parts unless they are

the bearing inner ring. Press the remaining component,

unfit for further service.

open side first, against the first component, again

using the sleeve so that all pressing is done on the

Grasp the Impeller end of Arbor in copper covered

inner ring.

vise jaws and unscrew the Governor Assembly from

Position the Arbor Bearing. Spring (58) so that its

the opposite end of the Arbor. The Governor Body

(17) has a left-hand thread; turn clockwise to remove.

pronged side contacts the outer ring of the Arbor

Remove the assembly from the vise and insert a 5/16"

Front Bearing (44). Then install the Front End Plate

diameter rod at least 5" long into the hoie from which

(8) on the Arbor.