Instruction manual

ManualsBrandsMilnor ManualsWasherK36 0005R

the motor position with the motor mount (or other component) jack screws until all slack is taken up. Do

not force belts onto the sheaves by using a pry bar or rolling the sheaves.

6. Check for sheave alignment as shown in FIGURES 3. The sheaves must be aligned within 1/64" per foot be-

tween shaft centerlines and in no case greater than 1/8". Readjust the sheave position as required to correct

alignment.

7. Continue to alternately and progressively tighten cap screws to the “Final Torque” shown in the table. Use a

torque wrench for the final torque check. When properly mounted, the gap between the bushing flange

should not be less than .078" nor more than .130".

8. Check for proper belt tension and adjust if required. See “V-BELT TENSION ADJUSTMENTS” (see Table

of Contents).

ÏTaperlock Bushing Bolt Torque Specifications

Size Code

(Stamped on bushing)

Bolt Size

(All National Coarse Thread)

Initial torque

(in lb.)

Final torque

(in lb.)

G 1/4 x 5/8 48 115

H 1/4 x 3/4 48 115

5/16 x 1 96 240

3/8 x 1 1/4 174 430

3/8 x 1 3/4 174 430

1/2 x 2 1/4 420 1080

SH 1/4 x 1 3/8 54 115

SDS 1/4 x 1 3/8 54 115

SD 1/4 x 1 7/8 54 115

SK 5/16 x 2 90 240

SF 3/8 x 2 180 430

M 3/4 x 6 3/4 1350 3700

ÊGear Reducer and Clutch

For gear reducer part numbers, see Gear Reducer Assembly and Reducer Air Seal drawings for your machine.

For clutch components, see Drive Assembly drawing for your machine.

ËConcept of Clutch Operation

—The clutch (see cross section view, next page) consists of a tubeless tire

mounted to the gear reducer output shaft and a drum similar to an automobile brake drum, mounted to the jackshaft

(or E2 motor shaft), within which the tire nests. When the tire is automatically inflated on command from the

machine controls, it grips the inside of the drum, thus engaging the gear reducer and the jackshaft. When air pressure

is released, the tire deflates, thus disengaging the gear reducer and jackshaft and allowing the machine to run in

extract without overspeeding the reducer, wash motor or drain motor.

Air controlled by a solenoid valve is admitted to the clutch through a hole in the center of the gear reducer

shaft. The air is prevented from entering the reducer housing itself by a mechanical end face seal located inside the

air inlet on the gear reducer. The reducer is also fitted with a vented fill plug to prevent build up of air pressure in

the housing, should the mechanical seal fail. A quick release valve permits instant clutch release by providing a large

area “short circuit” exhaust connection near the clutch. The quick release valve is necessary for the clutch used on

Milnor

washer-extractors, and is furnished as original equipment. The air supplied to the clutch must be free of oil

and moisture.

If the machine makes a loud screeching sound like skidding automobile tires during decel-

eration from extract speed to wash speed, turn the Master switch to off immediately and

refer to the troubleshooting procedures.

ËAlignment Requirements

—The gear reducer must be posi-

tioned on the drive base such that its output shaft is on the same axis

as the jackshaft (or E2 motor shaft), as shown in FIGURE 4. Other-

wise, the clutch tire will not properly engage the drum. Slight mis-

alignment reduces the service life of the clutch tire and perhaps other

components. Severe misalignment may result in serious damage to

the jackshaft, clutch, or gear reducer (i.e., broken shaft).

ËTo Remove the Gear Reducer and Clutch

1. Remove all belts from the gear reducer and clutch drum pulleys

as previously explained.

2. Remove the air line to the quick release valve located on the re-

ducer air seal.

3. Remove any other components which may be mounted to the

gear reducer mounting bracket, such as Autospot motor, brake

assembly, etc.

4. On all machines except 64" models, shims are used under the

gear reducer mounting bracket, to align the gear reducer.

Reducer

output

shaft

Clutch

tire

Clutch

drum

Air-line

to clutch

Jackshaft

(or E2 mo-

tor shaft)

Brake drum (42"

and 48" machines

ÎFIGURE 4

(MSSMA407BE)

ÎCross Section View of Clutch