BESSER DYNAPAC 3 AT A TIME (466361F9710US). OPERATION / MAINTENANCE MANUAL

SECTION 9

GRAPHIC CONTROL STATION

SECTION 9

GRAPHIC CONTROL STATION

9.0

GRAPHIC CONTROL STATION

Note: In this section, the term "SLC" will be used in reference of the "Small Logic Controller"

Use these keys to select a menu.

These keys are not in use.

These keys are used to enter a name or parameters

These keys are used to move cursor up and down and left to right.

This key allows the operator to erase a parameter.

This key is used to accept a parameter after it has been typed in.

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9-1

SECTION 9

GRAPHIC CONTROL STATION

HAND mode: vibration will start whenever switch is set to this position.

AUTO mode: vibration will occur during the appropriate time during the operation of machine.

Start vibrating motors but not the vibration itself.

To start actual vibration, use the "hand-off-auto" button.

Starts the main drive, but not the machine operation (clutch).

Jogs the machine only when the clutch selector switch is set to "Jog".

To start automatic operation.

At "Off", it stop the auto operation.

At "Jog", the machine can be jogged with the "Main drive jog" button.

OPTIONAL

Used to remove or install the mold with the stripper head.

Lock and unlock.

Raise and lower.

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9-3

SECTION 9

GRAPHIC CONTROL STATION

9.1

BLOCK MACHINE RUN SCREEN

Life time cycle counts (cannot

Red box will appear when

Number of cycles run by the

be reset).

height pins have made contact.

machine since the last product

change or since last reset.

Note: Use blue light indicators

on both sides of display screen

Note: Machine will ignore cycle

to monitor height pins. They

counts when vibrators are

are more accurate than the

turned off (dry cycles are not

ones on the display screen,

counted).

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SECTION 9

GRAPHIC CONTROL STATION

8 alpha-numeric digits are used

to name a particular product

FEED TIME

(ex.: B001 for block 1). Use

Amount of time the feed box is

keys 0 to 9 and A to F

stopped over the mold. This will

control the amount of material

(concrete) placed in the mold.

FINISH TIME

Preset time that you will expect desired fin-

ish time, from the moment stripper head

shoes hit material to when height pins

meet each other. Machine will adjust the

finish time by adjusting the autofeed

mechanism or the feed time (the operator

to select which one he prefers the machine

to change with (uses F1, F7 or F8).

DELAY TIME

The time of vibration after height

pins meet (F3 timer 2)

STRIP DELAY TIME

Time from the moment vibration

stops to when units are stripped

out of the mold.(F3 timer 3)

Use F11 & F12 KEYS to modify

feed time by 0.1 second

increments.

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9-5

SECTION 9

GRAPHIC CONTROL STATION

9.3

HAND & MACHINE SET UP F1

This screen allows the operator to turn some of the machine's components ON and OFF.

To access this screen from the RUN SCREEN, press F1.

F2: Normally enabled. The machine

F8: Turns the autofeed system ON or OFF

will not continue beyond point where height pins

meet. It can be useful for single cycle runs.

ref. timer

8 = manual adjustment increment

(time of travel)

F3: Turns the agitator ON or OFF .

ref. timer 10 = automatic adjustment increment

(time of travel)

F4: Turns the air compaction cylinders ON or OFF

F9: If enabled, a timer will control the finish time (refer

F5: If enabled, machine only needs 1 height pin to

to timer 23)

meet in order to continue cycle.

F10: Turns horizontal core ON and OFF (optional)

F6: Turns the pallet cleaner ON or OFF.

Note: The pallet cleaner is optional.

F11: Main drive speed selection (single or dual speed)

F7: If enabled, the feed time will be automatically

F12: *Only on Dynapac* Selects speed pf block

adjusted, otherwise, no adjustment will be made by

moving bars

the machine. The automatic feed time adjustment

will be made with 0.1 sec increments. If you wish

F13: *Only on Dynapac* Selects speed pf block

to change this increment, change value of register

moving bars

of N7:35 (see section 10.9, data table display

"F7"). Here, the normal value is equivalent to

0.1 seconds.

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9-7

SECTION 9

GRAPHIC CONTROL STATION

9.4

ROTARY SENSOR ADJUSTMENT F2

This screen allows the user to change the preset values of the rotary sensor. The rotary sensor is located at the end

of the main shaft. Its purpose is to synchronize the machine and all its components. This screen also allows the user

to acknowledge the present rotary sensor value. To access this screen from the RUN SCREEN,

press F2.

First stop:

Air compaction start:

Should occur when indicating 100⁰.

The location on the rotary sensor where the air compaction

starts (no stop location) (stop when height pins meet).

Second stop:

Should occur when indicating 180⁰.

BM, VIB, AGIT & Air comp offset:

Window for these components. (accuracy)

Third stop:

Ex.: If offset is 10^o, BM bars can be between 250^o and 260^o

Should occur when indicating 25⁰.

This value (10) will be subtracted from the value (250)

to give range of operation to the rotary sensor to deter-

1st, 2nd & 3rd stop offset:

mine a stop.

Window for stop position. (accuracy)

Ex.: If offset is 10^o, 1st stop can be between 90^o and 100^o

Start block moving bars:

This value (10) will be subtracted from the stop value

The location on the rotary sensor where the block mov-

(100) to give range of operation to the rotary sensor to

ing bars start.

determine a stop.

Start of main drive 2nd speed & End of main drive

Agitator start:

2nd speed: Used with main drive frequency control.

The location on the rotary sensor where the agitator is

Establishes when you start and stop 2nd speed.

turned ON.

Press this key to change any of the preset val-

Agitator stop:

ues.Use arrows to select. Use numbers to change

The location on the rotary sensor where the agitator is

values. Use

to make changes.

turned OFF.

PRESENT ROTARY SENSOR VALUE : 50

Vibration start:

It will indicate the rotary sensor location at present time.

The location on the rotary sensor where the vibrators start

(no stop location)(stop is controlled by a delay time).

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SECTION 9

GRAPHIC CONTROL STATION

9.5

TIMER ADJUSTMENT F3

These two screens allow the operator to visualize and to change preset timer values. There are 24 timers (0 to 23)

which are accessible through these screens. Additional timers are accessible through the DATA TABLE DISPLAY

(F7 then F4). See appendix "A" for all timer addresses and descriptions. Each timer has a specific function related to

the machine's overall performance. The timers and their functions are listed on the next page. Timers 0 to 3 are the

most used timers; they control functions which are directly related to production. To access this screen from the RUN

SCREEN, press F3.

Press F1 to go

to previous page

or to return to

the RUN

SCREEN.

Use arrows on the keyboard to

Press F8 to go to the

Press F4 to change

select a timer.

next page (timers 12

preset value.

to 23).

9-10

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SECTION 9

GRAPHIC CONTROL STATION

TIMER

FUNCTION

FEED TIME. Amount of time the feed box is stopped over the mold. This time controls the

amount of concrete placed in the mold.

FINISH TIME. Preset time that you will expect desired finish time. Finish time is from the moment

stripper head shoes hit material to when height pins meet. Machine will adjust the finish time by

adjusting either the autofeed mechanism or the feed time.

DELAY TIME. Amount of time of vibration after height pins meet.

STRIP DELAY TIME. Delay between time when vibration stops and when units are stripped out

of the mold.

VIBRATOR BRAKE ON TIME. The amount of time the vibrator brake is energized.

Note: If your machine is equipped with Smartpac, timer 4 is not used.

LUBE PUMP OFF TIME. This is the time (over a period of 1 minute) that the lubrication pump is

OFF. (IMPORTANT: 0.01 = 1 second) Note: This is the timer that should be used to adjust lubri-

cation time.

LUBE PUMP ON TIME. This is the time (over a period of 1 minute) that the lubrication pump is

ON. (IMPORTANT: 0.01 = 1 second) Note: Use timer 5 above to adjust lubrication time.

Timer 5 + timer 6 = total cycle time of lubrication pump.

AUTOFEED DWELL TIME. If the finish time is greater than this amount, the autofeed will not

adjust the finish time.

Ex.: Finish time = 1 second

Timer 7 =

0.40 second

If finish time is between 1 sec. and 1.4 sec., the autofeed will not adjust finish time.

If finish time is 1.50 sec., autofeed mechanism or feed time will be incremented down.

If finish time is 0.9 sec., autofeed mechanism or feed time will be incremented up.

Note: See section 9.3: “Hand & machine setup” - F7 and F8.

AUTOFEED MANUAL INCREMENT TIME. The amount of autofeed correction in manual mode.

Note: This is necessary to manually increase or decrease the amount of travel done by the

autofeed mechanism each time you manually operate it. This timer is related to the

ruler on top of the autofeed mechanism.

DELAY A 3RD STOP LOCKOUT. After the product is stripped out of the mold, it is possible

that a third stop is necessary. The third stop may be required for slow product delivery. The delay

you will be presetting here will be considered acceptable. Above this time (9 seconds), the computer

will show a fault signal.

10.

AUTOFEED CORRECTION TIME - ARM TRAVEL - Same as timer 8 but with the automatic

mode on.

11.

DELAY A LOW AIR SUPPLY FAULT. Won't stop the machine in case of small air pressure

fluctuation. If the air pressure fluctuation lasts longer than this preset time, the SLC will show a

fault.

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SECTION 9

GRAPHIC CONTROL STATION

TIMER

FUNCTION

12.

MACHINE IDLE TIMER. If your machine is part of a plant integration, this timer will be used.

No fault condition created.

13.

DELAY DETECTION OF LOW SPEED LOCKOUT. In case of mechanical jam or underspeed

condition, the machine will stop after this delay.

14.

GET A ROTARY SENSOR READING. This timer is preset and should not be adjusted by the

operator.

15.

DELAY A PALLET MAGAZINE LOW LOCKOUT. The amount of acceptable time the magazine is

low on pallets before a fault is actuated.

16.

DELAY A HOPPER LOW LOCKOUT. The amount of acceptable time the hopper is low on

material before a fault is actuated.

17.

DELAY GETTING A HOPPER YIELD. Used in plan integration.

18.

NOT IN USE.

19.

DELAY HEIGHT PIN CKT - IGNORE PIN BOUNCE. Amount of time before height pin circuit are

enabled. Used to ignore pin bounce on low height products.

20.

DELAY VIBRATION AT 1^ST STOP. Delay of normal vibrating start at first stop (feed vibration).

Note: Only with double vibration

21.

DELAY OF 2^nd STOP VIBRATION. Delay of normal vibrating start at second stop (finish

vibration).

Note: Only with double vibration

22.

NOT IN USE.

23.

AUTO HEIGHT PIN BYPASS. This period would be the desired finish time. This is possible only

if the auto height pin bypass has been enabled. To enable or disable the auto height pin bypass,

go to screen: “Hand & machine set-up” (section 9.3 - Function F9).

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SECTION 9

GRAPHIC CONTROL STATION

9.8

PRODUCT TABLE F5

This menu allows you to store and retrieve preset recipes which include Feed time, Finish time, Delay time, and Strip

delay time and other parameters. There is a possibilty of 100 product numbers. To access this menu from the RUN

SCREEN, press F5. To return to the RUN SCREEN, press F1

With this menu, you may:

- Enter into the SLC memory a name for different products.

- Enter preset recipes for each of those products.

- Modify any preset recipe for any product.

The screen below shows an example of a product number. As an example, we gave the name TEST. From here,

the user may select a product number, edit recipe data, save recipe settings, change product name and load product

to run..

Return to RUN SCREEN.

SELECT PRODUCT NUMBER: Used to select an existing product number.

EDIT DATA SCREEN: Used to enter data such as product height, unit types etc.

SAVE SETTINGS TO RECIPE: Used to save recipe settings, once you have entered data for recipe.

CHANGE PRODUCT NAME. Since each product has a name, it is possible to change a product name with this

function.

LOAD PRODUCT TO RUN: .Machine won't use the recipe parameters until you load product to run.

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SECTION 9

GRAPHIC CONTROL STATION

9.8.2

TO EDIT RECIPE DATA:

1. From the SELECT PRODUCT SCREEN, press the F3 key.

The display will read:

2. Use arrows to move cursor to any of the preset you wish to modify.

3. Press the F6 key to change preset. Value can be from 0 to 65535.

4. Press

to enter preset into memory.

From this screen, you may also access the timers by pressing F3 and the Smartpac settings by pressing F8.

Once you are finished entering data for presets, press F1 key to return to previous screen.

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SECTION 9

GRAPHIC CONTROL STATION

9.8.4

TO ENTER OR CHANGE PRODUCT NAME:

This function is used to load the product number currently selected.

1. From the SELECT PRODUCT SCREEN, press the F3 key.

The display will read:

2. Use arrows to move cursor to any number from 0 to 9 or any letter from A to Z. A “space” and “end text” is also

available.

3. Press the F9 key.

4. Use arrows to move cursor to any other character listed above.

5. Press the F10 key.

6. Repeat same steps using F10, F11, F12, F13, F14, F15 and F16 until 8 character name is complete.

7. Press the F6 key to save entered text.

Note:

- At any time, press F5 key to erase all character in box.

- You may also use F7 and F8 keys to scroll up and down.

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SECTION 9

GRAPHIC CONTROL STATION

9.9

CYCLE TIMER

This menu allows the operator to monitor each machine cycle through a graph. It will indicate the time it took to do

each cycle and also it will show the average time for the last 10 cycles.

To access this screen from the RUN SCREEN, press F7. Then press the F4 key.

The display will read:

Average cycles per minute

Average time it takes the machine to complete

one average cycle (based on the last 10 cycles)

Time it takes the machine to complete one full

cycle. Example here: 8.55 seconds

Total amount of time the machine has been run-

ning. Can be reseted by using the F8 key.

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GRAPHIC CONTROL STATION

9.10 DIAGNOSTICS F7

This menu allows the operator to monitor the machine once a fault condition has occurred.

To access this screen from the RUN SCREEN, press F7. To return to the RUN SCREEN, press F1

The display will read:

This screen will show a diagram of the machine and indicate where the fault is located.

From this screen, you can access the Data table. The Data table enables the operator to monitor or change parame-

ters concerning: Control relays, Timer and Counter presets as well as Integer value.

To access the Data table, press the F2 key.

The display will read:

From this screen, the operator has access to 6 different menus. See next pages for description of these menus.

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9-23

SECTION 9

GRAPHIC CONTROL STATION

To change or monitor any of the parameters, press any of the keys between F2 and F7.

9.10.1 TO MONITOR A SLC500 STATUS (F2):

From the RUN SCREEN, press F7.

1. Press the F2 key.

The display will read:

The SLC shows here the word preset value.

2. Press the F2 key.

3. Enter a status word here then press ENTER. A word

is an address to a memory location fora timer, a

counter, an integer value or a control relay. Refer to

appendix A for address location.

To change a preset value:

4. Press the F16 key.

5. Enter new value.

6. Press ENTER.

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GRAPHIC CONTROL STATION

9.10.3 TO MONITOR OR CHANGE A TIMER PRESET (F4):

From the RUN SCREEN, press F7.

1. Press the F2 key.

The display will read:

2. Press the F4 key.

The SLC shows here the preset value for this timer.

NOTE: A time base should be taken into account when

3. Enter a Timer address here then press ENTER.

establishing true time value.

(Example here is 0)Refer to appendix A for proper

address location and description.

To change a preset value:

4. Press the F16 key.

5. Enter new value.

6. Press ENTER.

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GRAPHIC CONTROL STATION

9.10.6 TO MONITOR OR CHANGE A INTEGER WORD VALUE (F7):

From the RUN SCREEN, press F7.

1. Press the F2 key.

The display will read:

2. Press the F7 key.

The SLC shows the word value for this Integer.

3. Press the F7 key.

4. Enter a Integer file number here then

press ENTER.(example here is 7)

5. Press the F8 key.

6. Enter a word number then press ENTER (example

here is 70)

7. Press F16 to change word value.

Refer to the logic diagram in appendix A

for proper address location and description.

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SECTION 9

GRAPHIC CONTROL STATION

9.11 PRODUCT QUANTITY CONTROL F6

This menu allows the operator to enter a desired preset production count and to set the count warning.

To access this screen from the RUN SCREEN, press F6.

9.11.1 TO HAVE THE PRODUCTION COUNT WARNING SHOW:

Press the F2 key to toggle between Disabling and Enabling the production count warning.

9.11.2 TO RESET THE PRODUCTION COUNT:

Press the F3 key and the production count will be reset.

9.11.3 TO SET A NEW PRODUCTION COUNT WARNING:

1. Press the F4 key to set new preset in the thousands.

2. Enter a new present production preset (1=1000

999 = 999,000)

3. Press ENTER.

4. Press the F5 key to set new preset in the hundreds.

5. Enter a new present production preset (1=1

999 = 999)

6. Press ENTER.

When the machine cycle count will have reached this preset value, a warning will show on the screen if you have

enabled this warning.

This warning is shown on the next page.

Once this warning has occurred, press any key to return to the RUN SCREEN.

Note: This will automatically reset the production count to 0.

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SECTION 9

GRAPHIC CONTROL STATION

9.12 SMARTPAC ADJUSTMENT F4

This menu allows the operator to enter desired vibrator speed and amplitude for the SMARTPAC vibrating system.

The operator can also access some other data such as speed and amplitude range.

To access this screen from the RUN SCREEN, press F4. (SMARTPAC VIBRATION)

In this case, the

Single vibration

mode has been

selected.

Double vibration

9.12.1 TO CHANGE VIBRATION PRESET VALUES:

1. Press the F3 key to select a vibration mode. The screen above shows an example where the operator has

selected the Single vibration mode. To change the Smartpac preset value, press the F6 key.

The display will read:

Speed and amplitude

ranges:

If values is not within

these values, the

message "value out of

range" will appear on

screen.

2. Enter the new preset value (from 0 to 3200)

3. Press the

key.

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SECTION 10

TROUBLESHOOTING

SECTION 10

TROUBLESHOOTING

THIS SECTION WILL HELP YOU SOLVE TWO KINDS OF PROBLEMS:

1. Problems with machine. Those problems are diagnosed by the Small Logic Controller (see section 9)

and will show up on the screen as outlined in section 10.1 below.

2. Problems with the concrete units. Those problems are diagnosed by looking at the concrete units as

outlined in section 10.2.

10.1

SMALL LOGIC CONTROLLER FAULTS.

10.1.1 WHEN A MECHANICAL FAULT OCCURS, THE MACHINE STOPS AND THE FAULT SHOWS ON

THE SCREEN. WHEN THIS HAPPENS:

1. The display on your Graphic Control Unit will read:

Screen indicates that

there is a fault in the

machine.

2. Press F7 to inquire about the fault (diagnostic).

The display will read:

This screen shows a diagram of the machine and indicates where the fault is located.

10-1

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SECTION 10

TROUBLESHOOTING

3. Correct the fault.

Once the fault has been corrected:

4. Turn the clutch selector switch to "OFF".

5. Press the F9 key.

6. Turn clutch switch "ON".

The machine will sound an alarm and restart.

10.1.2 LIST OF CONCRETE PRODUCTS MACHINE FAULTS

THE VIBRATOR, AGITATOR, AUTOFEED OR PALLET CLEANER MCP OR OVERLOAD IS TRIPPED.

The vibrator, agitator, autofeed or pallet cleaner motor circuit protector (MCP) or overload is tripped. This error

may indicate:

- Motor is not rotating freely. Verify motor rotation.

- Motor has an electrical short in its winding. Check resistance of winding.

- Wiring to the motor is shorted. Verify continuity of wiring to motor.

THE MAIN DRIVE MCP OR OVERLOAD IS TRIPPED.

The main drive motor circuit protector (MCP) or overload is tripped. This error may indicate:

- Motor is not rotating freely. Verify motor rotation.

- Motor has an electrical short in its winding. Check resistance of winding.

- Wiring to the motor is shorted. Verify continuity of wiring to motor.

THE BLOCK MOVING BAR DRIVE MCP OR OVERLOAD IS TRIPPED.

The block moving bar motor circuit protector (MCP) or overload is tripped. This error may indicate:

- Motor is not rotating freely. Verify motor rotation.

- Motor has an electrical short in its winding. Check resistance of winding.

- Wiring to the motor is shorted. Verify continuity of wiring to motor.

THE SYSTEMS AIR PRESSURE IS LOW.

The system air pressure switch PS-13 indicates low pressure.

- Insure the air compressor is working properly.

- Check for proper connection of air lines.

THE LUBE RESERVOIR IS LOW.

The lube level switch LS-11 indicate that the grease reservoir is low.

- Refill grease reservoir as required (see section 11).

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SECTION 10

TROUBLESHOOTING

6. MACHINE ROTATION IS UNDER SPEED.

This condition can be caused by a motor or clutch deficiency. An object jammed in the machine can also cause

this fault. If pallet jams the machine, the shear bolt on the timing sprocket will break to avoid further damage to

the machine.

7. ROTARY SENSOR IS OUT OF SYNC.

The rotary sensor coupling has slipped. Adjust the rotary sensor to 100 degrees at 1st stop and tighten coupling

clamps.

8. THE MATERIAL HOPPER IS LOW.

The material hopper is low of material and will not allow the machine to operate until additional concrete is deliv-

ered to the hopper. This condition may be bypassed by use of the "F8" key on the Run screen.

9. THE MAIN DRIVE BESCODYNE IS OVER NORMAL TEMPERATURE.

The temperature sensor on the main drive bescodyne has tripped.

- Check oil level of bescodyne drive to insure it is properly filled.

- Replace oil as required (see section 11).

10. A VIBRATOR BESCODYNE IS OVER NORMAL TEMPERATURE.

The temperature sensor on the main drive bescodyne has tripped.

- Check oil level of bescodyne drive to insure it is properly filled.

- Replace oil as required (see section 11).

11. THE HEAD IS NOT PROPERLY CLAMPED (only on machine with Mold Head Clamp Device).

The mold head clamp device is not in the "UP" and "LOCKED" position.

- Insure sensor head "UP" sensor (PRS-16) is tripped. If it has not, raise head with use of the graphic display sta-

tion.

- Insure sensor head "LOCK" sensors (PRS-12 and PRS-13) are tripped. If not, lock the head with use of the

graphic display station.

12. THE PALLET MAGAZINE IS LOW.

The pallet magazine is low. The concrete units machine will not operate until pallets are provided to the maga-

zine.

13. A PALLET SKIP ERROR HAS OCCURRED.

A pallet was not present on the Pallet Skip switch PRS-3 when the height pins met.

- Check to insure pallets are moving freely through machine.

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SECTION 10

TROUBLESHOOTING

14. A PALLET HAS BEEN ON LS-2A TOO LONG.

A pallet is stopped over LS-2A on the front delivery conveyor too long.

- Check to insure the front delivery conveyor is running, if not restart conveyor.

- Check to insure pallets are moving freely on the front delivery conveyor

15. THE MACHINE IS AT THIRD STOP TOO LONG. MAY HAVE MISSED LS-7.

The machine is waiting at third stop too long and waiting for the block moving bars to travel forward.

16. THE MACHINE HAS CYCLED TOO MANY TIMES WITHOUT A LUBE CYCLE.

The lube cycle switch LS-11 has not toggled on or off within a preset amount of machine cycles (Counter C5:0).

- Check for blocked grease lines.

- Check to insure the lube pump is working properly.

- Increase lube pump cycle rate by decreasing the preset of lube pump timer (T4:5).

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TROUBLESHOOTING

10.2 SOLUTIONS TO CORRECT DEFORMED AND CRACKED BLOCKS.

10.2.1 CRACKED FACE SHELLS

10.2.2 HALF-MOON ON FACE SHELL

Check mold to stripper head alignment (section 5).

Check for loose division plates.

Check to see if core assembly is bent or twisted

Check pallet receiver rubbers.

due to over tightening.

Check that pallet is moving on the conveyor.

Check mix (moisture content). An inconsistent

moisture content in your mix may result in inconsis-

Check vibrator bearings.

tent concrete product quality. The use of a comput-

erized moisture control unit in you mixer is recom-

Check pallet receiver rubbers (hardness).

mended to improved product quality and consisten-

cy.

Check mold assembly.

Check pallet receiver guides on slide shaft (section

Check amount of admix in concrete.

5).

Increase delay time (section 9).

Check shock absorbers.

Check pallet receiver rubbers.

Check admix.

Check amount of material being left in mold after

feedbox goes back.

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SECTION 10

TROUBLESHOOTING

10.2.3 LAMINATION ON FACE SHELL AND

10.2.4 FRONT OF BLOCK NOT FILLED

HORIZONTAL CRACKING

a. Check vibrator shaft speeds for R.P.M. (they

a. Check hopper gate setting.

should turn within 2 R.P.M. of each other - adjust

with screw.

b. Check feedbox travel forward.

b. Check for metal to metal contact during vibration

c. Check agitator.

(mold vibrating against machine mold throat).

d. Check for chunks in feedbox.

c. Check back apron plate alignment to mold

(section 5)

e. Mix may be too wet.

d. Check that Feedbox is not vibrating on mold.

Check feed time. Increase if necessary. (section 8

and 9)

e. Check vibrator bearings.

Check delay time (decrease or increase).

(section 9)

g. Check mix design.

h. Check for loose division plates.

Check for lack of proper admix.

Check slide shaft pucks (section 5).

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SECTION 10

TROUBLESHOOTING

10.2.5 AREA OF FACE SHELL TOO COARSE

10.2.6 SMOOTH TOP EDGE ON FACE SHELL

a. Check machine hopper for build up.

Check for division plate wear.

b. Make sure vibrator sheaves are properly aligned.

Make sure stripper shoes protrude through bottom

of mold at completion of stripping.

c. Check vibrator weights for proper balance (equal

length of clamping bolts and equal weight of nuts).

Check stripper head alignment. (section 5)

d. Check for loose mold parts.

Check for loose stripper shoes.

e. Check for material segregation.

Check pallet receiver frame for level. (section 5)

Check vibrator shaft speed.

Check moisture content of mix.

g. Check finish times. (sections 8 and 9)

h. Check feed time. Decrease if necessary.

(sections 8 and 9)

Check autofeed mechanism. Lower if necessary.

10-7

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BESSER DYNAPAC 3 AT A TIME (466361F9710US). OPERATION / MAINTENANCE MANUAL - page 4