Cleveland WELBILT MFS Скачать руководство пользователя страница 14

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BASIC OPERATION

Single Cycle Operation

Turn the Stroke selector switch to “Single Stroke” (item 14 on sheet
KE01710-2). It will do the following when the Actuator switch is pressed
(item 32 on sheet KE01710-2).

■

Shifts 2nd valve (item 3 on sheet KE01710-4), which
turns off 1st valve (item 2 on sheet KE01710-4) and
takes the signal away from point #24 (see view “A” on
sheet KE01710-3).

■

Single cycle valve (item 6 on sheet KE01710-4) is now
turned on. It gives one shot of air to 3rd valve #3 which
shifts and turns on valves in Group A.

■

The Pump valve (item 5 on sheet KE01710-2) now shifts
(point 1) and valve #4 & #5 shift (points 11 & 12). This
actuates Nozzle Cylinder (item 30 on KE01710-2) and
Flapper Cylinder (item 31 on KE01710-2).

■

When the Product piston is completely retracted it hits
limit switch LV1 (item 33 on KE01710-2). This shifts valve
#3 back through point 19 which turns on Group B which
shifts the Pump valve (point 2) and shift the valve #4 &
#5 back (points 22 & 23) which actuate the Nozzle
cylinder (item 30 on KE01710-2) and Flapper cylinder
(item 31 on KE01710-2) to complete the Single cycle.

Single Cycle operation

Turn Stroke selector switch to Constant pumping cycle. It will do the
following when the Actuator switch is pressed.

■

Shifts valve #2 which in turn shifts valve #1 (point 31).
This turns on valve #3 (point 24) if LV2 (item 33 on
KE01710-2) is activated which turns on Group A.

■

When the Product piston reaches the full stroke, it hits
limit switch LV1 (item 33 on KE01710-2). This shifts valve
#3 back through point 19 which turns on Group B which
shifts the Pump valve (point 2) and shift the valve #4 &
#5 back (points 22 & 23) which actuate the Nozzle
cylinder (item 30 on KE01710-2) and Flapper cylinder
(item 31 on KE01710-2).

■

When the Product piston completes the first cycle, LV2 is
hit again and turns valve #1 back on and shifts valve #3
again (point 24) and starts another cycle all over again.

■

This will continue until the selector switch is turned off,
which shuts off air to valve #2 and stops supplying air to
valve #1, which will not turn on valve #3 to start another
cycle.

ADJUSTMENT & SETTING OF AIR
CUSHION

SECTION 1

- Adjustment of Valve Paddle Travel

NOTE:

When looking at the pump head (paddle side), left

side paddle travel is affected by the right side air cylinder
travel adjustment set screw and vice versa.

Back off 9/16" lock nut on 3/8" dia. set screw as shown
in Figure 1.

Adjust set screw until valve paddle is l/8" away from
inside O-ring and edge as shown in Figure 2.

Secure lock nut.

Recheck l /8" distance between paddle and edge.

This side is now set. Follow the same procedure for the
other side.

SECTION 2

- Setting of Air Cushion

NOTE A:

Again left side paddle cushioning is affected by

the right side air cylinder cushion set screw (3/16" dia.) and
vice versa as shown in Figure 1.

NOTE B:

Turning set screw in increases air cushion action

and vice versa.

CAUTION:

Avoid fingers around paddle travel area,

personal injury may result.

Support the head assembly securely and connect the air
lines to the rotary actuator air cylinders. Activate air to
start rotary action.

Observe air cushion action at the end of each swing.
Optimum cushion action can best be described as a
controlled deceleration of the paddle at the end of the
swing with complete elimination of rotational momentum
in the shortest time possible. Adjust set screw to achieve
results on both sides.

Cushion
Adjustment
Set Screw

Travel
Adjustment
Set Screw

1/8"

Figure 1

Figure 2