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

SECTION 5

MOLD INSTALLATION

B. Placing mold and stripper head in machine

without the use of the optional Mold insertion

device.

5.4.11 Place mold and stripper head in machine (see

5.4.14 Tighten the bolt (D) hand tight and then back off

figure 5.13), back against mold throat liners (E)

1/4 of a turn (see figure 5.13b).

(see figure 5.13b).

5.4.15 Tighten the clamp bolt (C) (see figure 5.13b).

5.4.12 Close mold locks (A) and latch (B) (see figure

5.13b).

5.4.13 Loosen the clamp bolt (C) (see figure 5.13b).

Figure 5.13b SECURING THE MOLD.

Figure 5.13

PLACING MOLD AND STRIPPER HEAD IN MACHINE.

NOTE: This figure has been simplified for illustration

purposes.

5-10

466361F9710US F1 29OC99

SECTION 5

MOLD INSTALLATION

5.4.16

Raise both vibrator motors with screw jacks (C)

5.4.21 Disconnect safety chain, and hang it on chain

(see figure 5.14). Screw vibrators jacks up and

hook.

place V-belts from vibrating motor sheaves to

vibrating shaft sheaves. On a standard vibra-

WARNING: Do not raise the stripper

tion system, you must install 4 belts on each

head frame too high; otherwise the feed-

side. On a Smartpac system, you must install 2

box will come forward resulting in crush

belts on each side.

hazard!

5.4.17

Lower right hand vibrator motor, then left hand

vibrator motor to tighten belts. Make sure

5.4.22 Turn power back on. Do not start main drive

sheaves are aligned. Lower jack screws to cot-

motor. Turn clutch switch to the “Jog” position

ter pins.

and push the “Jog” button to allow the stripper

head frame to lower to the top of stripper head

5.4.18

Make sure no one is standing on or near

plate.

machine and turn power back on. Hit MCR reset

button and start main drive motor.

5.4.23 Bolt stripper head plate to stripper head frame.

Do not tighten bolts completely. Tighten until

5.4.19

Jog machine to raise the stripper head frame

head plate contacts the stripper head frame

just high enough to disconnect safety chain.

(see figure 5.15).

5.4.20

Shut off clutch and turn power off. Wait until

5.4.24 Place a good pallet on the pallet receiver rub-

motor has stopped completely. Also, lock out

bers.

machine.

Figure 5.14

RAISING THE VIBRATOR MOTORS WITH SCREW JACK (C).

466361F9710US F1 29OC99

5-11

SECTION 5

MOLD INSTALLATION

5.4.25 Start main drive motor. Jog machine to raise

machine and turn power back on. Hit MCR reset

stripper head just high enough to remove 2"x4"

button.

blocking from under stripper head plate.

5.4.29 Cycle machine to “first stop” position (feedbox

5.4.26 Shut off clutch and turn power off. Wait until

all the way to the front), turn clutch switch off

motor has stopped completely. Also, lock out

and stop drive motor. At this point the mold and

machine.

pallet should be on the pallet receiver rubbers

(see figure 5.16).

5.4.27 Remove the rear blocks first, then remove the

front block.

5.4.28 Make sure no one is standing on or near

Figure 5.15

BOLT STRIPPER HEAD PLATE TO STRIPPER HEAD FRAME.

Figure 5.16

MOLD RESTING ON THE PALLET RECEIVER.

5-12

466361F9710US F1 29OC99

SECTION 5

MOLD INSTALLATION

5.5

ADJUSTING THE MOLD

A. Levelling the mold

5.5.4

If the dimension on each side is not approxi-

5.5.1

Run machine to “first stop” (feedbox all the way

mately 5/8" [16mm], adjustment must be made

forward) (see figure 5.1).

using the pallet receiver link rods (B) (see figure

5.18, next page), after loosening nut (A) (see

5.5.2

Shut off clutch and turn power off. Wait until

figure 5.18).

motor has stopped completely. Also, lock out

machine.

5.5.5

Turn power back on and vibrate mold.

5.5.3

Check level of mold from side to side and from

5.5.6

Shut off clutch and turn power off. Wait until

front to back until bottoms of mold side bars are

motor has stopped completely. Also, lock out

approximately 5/8” [16mm] above mold throat

machine.

plates at all four check points (see figure 5.17).

5.5.7

Check level of mold from side to side and from

front to back until bottoms of mold side bars are

5/8” [16mm] above mold throat plates at all four

check points (see figure 5.17).

Figure 5.17

SIDE TO SIDE DIMENSION (3 of the 4 check points shown).

466361F9710US F1 29OC99

5-13

SECTION 5

MOLD INSTALLATION

5.5.12 If the dimension in front and back is not 5/8"

5.5.13 Make adjustments on right hand side by backing

[16mm], carry out adjustment by first checking

one guide liner away from slide shaft and tight-

clearance of bottom guide liners on both sides

ening the other against the slide shaft. To raise

of the machine. If clearance is off, tighten front

the front, loosen the front and tighten the back.

screw hand tight and then back off 1/4 of a turn

To raise the back, loose the back and tighten

balancing out both guide liner adjusting screws.

the front. See figure 5.20 below.

These screws are located at the bottom of the

pallet receiver frame at the slide shaft on both

5.5.14 After 5/8” [16mm] adjustment is obtained, go

sides of the machine.

back to the left hand side of the machine and

retighten loosened guideliner adjusting screws.

a. To make the following adjustments (see figure 5.19):

Then back rear screw 1/4 of a turn so this guide

liner will move freely.

1. Loosen the nut (A).

2. Adjust the guide liner (B) as desired.

5.5.15 Vibrate between each adjustment. Turn clutch

3. Tighten the nut (A).

off and power off before checking dimensions

and/or making adjustments.

GUIDE

LINER

TIGHTEN

BACK TO

FRONT TO

RAISE

FRONT

BACK

BACK OF

FRONT OF

MACHINE

Figure 5.19

UPPER GUIDE LINER

Figure 5.20

PALLET RECEIVER FRAME ADJUSTMENT.

ADJUSTMENT SCREW.

466361F9710US F1 29OC99

5-15

SECTION 5

MOLD INSTALLATION

B. Mold lateral adjustment.

machine.

5.5.18 Check for centered position in machine. Mold is

Note: The mold and pallet are supported by the pallet

centered when mold side bars are approximate-

receiver frame.

ly 1” [25.4mm] between vibrator bearing blocks

and the inside of mold throat plates (see figures

5.5.16 Vibrate mold.

5.21 and 5.22).

5.5.17 Shut off clutch and turn power off. Wait until

Note: The 1” [25.4mm] wide gooseneck pry bar (part

motor has stopped completely. Also, lock out

#61397) works nicely for mold centering.

Figure 5.22 USING THE 1" [25.4mm]

DIMENSION TO CENTER

THE MOLD.

Figure 5.21

CENTERING THE MOLD.

Note: This figure has been simplified for illustration

purposes.

5-16

466361F9710US F1 29OC99

SECTION 5

MOLD INSTALLATION

5.5.19 Loosen clamp bolt (A) (see figure 5.23).

5.5.24 Recheck 1” dimension. During vibration, if mold

works off center to the right, turn adjusting

5.5.20 Turn adjusting screw (B) up until it contacts

screw (B) up (see figure 5.23) which will move

under side of right hand vibrating motor support

the vibrating motor up. If molds works off center

plate (see figure 5.23). The adjusting screw (B)

to the left, turn adjusting screw (B) down (see

is located under the right vibrating motor.

figure 5.23).

5.5.21 Turn power back on. Hit MCR reset button.

Note: Make sure base is not on the jacking screw (C)

when adjusting vibrating motor height (see figure

5.5.22 Vibrate mold.

5.23).

5.5.23 Shut off clutch and turn power off. Wait until

5.5.25 Repeat step 5.5.24 if necessary, until mold

motor has stopped completely. Also, lock out

automatically remains centered. No adjustment

machine.

is required on left hand vibrating motor. Equal

belt tension is automatically maintained.

5.5.26 Tighten clamp bolt (A).

A C

Figure 5.23

VIBRATING MOTOR HEIGHT ADJUSTMENT SCREW (B).

466361F9710US F1 29OC99

5-17

SECTION 5

MOLD INSTALLATION

5.6 APRON PLATE ADJUSTMENT

Note:

1/8" [3mm] is a good reference provided the

feedbox does not contact the mold during vibra-

WARNING: The following procedure

tion.

must be done with power off and

machine locked-out!

5.6.2

Check to see that there is approximately 1/32"

[0.8mm] clearance between the apron plate and

the back of the mold top plate (see figure 5.24

5.6.1

Adjust so the apron plate is 1/8" [3mm] above

and 5.25).

the mold top plate (figure 5.25) with the machine

at “first stop”.

5.6.3

If necessary, adjust apron plate. Loosen bolts

and move forward or back (see figure 5.26).

Figure 5.24

APRON PLATE CLEARANCE.

Figure 5.25

APRON PLATE CLEARANCE.

5-18

466361F9710US F1 29OC99

SECTION 5

MOLD INSTALLATION

5.6.4

Run machine to “first stop” (feed box all the way

5.6.6

Measure from bottom of shoe to top of mold end

forward). See figure 5.1.

liners (see figure 5.27). Add dimension “C” to this

measurement (dimension “C” is the amount of

5.6.5

Shut off clutch and turn power off. Wait until

compression. For detailed explanations, see sec-

motor has stopped completely. Also, lock out

tion 5.8)

machine.

5.6.7

Loosen nuts (A) and set height pins (B) to be this

far away - the final result of the measurement in

5.5.6 - from lower height stops (figure 5.28).

Figure 5.27 SHOES 4" [102MM] ABOVE MOLD.

Figure 5.28

HEIGHT PINS ADJUSTMENT (LEFT SIDE SHOWN).

5-20

466361F9710US F1 29OC99

SECTION 5

MOLD INSTALLATION

5.7.4

If the stripper head is not level (B to C) (see fig-

5.7.5

Make adjustment on the right hand side by

ure 5.30) with the mold from front to back, back

backing one lower stripper head guide liner

out both lower guide liner adjusting screws on

away from the slide shaft and tightening the

the stripper head frame at the slide shaft on the

other against the slide shaft. To raise the front,

left hand side of machine (see figure 5.31).

loosen rear and tighten front. To raise the back,

Loosen nut (A) and adjust with bolt (B).

loosen the front and tighten the rear (see figure

5.32).

GUIDE

LINER

TIGHTEN

BACK TO

FRONT TO

RAISE

BACK

FRONT

BACK OF

FRONT OF

MACHINE

Figure 5.31

LOWER GUIDE LINER ADJUSTMENT

Figure 5.32

STRIPPER HEAD FRAME

SCREW.

ADJUSTMENT.

5-22

466361F9710US F1 29OC99

SECTION 5

MOLD INSTALLATION

5.7.6

After head is level with mold, tighten both

5.7.10 Adjust bottom of shock absorbers to pads to

adjustment screws against the slide shaft on the

dimension of unit height plus 3/4" [19mm].

left hand side (see figure 5.31). Then loosen the

front adjustment screws 1/4 of a turn and tighten

5.7.11 Put in agitator grid and cut-off bar, and check

clamp bolts.

feedbox alignment. There should be a minimum

clearance of 1/4" [6mm] between the wiper

5.7.7

Turn power back on. Hit MCR reset button.

assembly and the stripper shoe as shown in fig-

ure 5.33.

5.7.8

Turn height pins OFF. Jog machine to “second

stop” (Ref. section 7.3). Stripper shoes should

Note: For units higher than 3 5/8”, clearance with

be in mold and height pins should touch.

stripper head plate must also be maintained.

5.7.9

Shut off clutch and turn power off. Wait until

5.7.12 If adjustment is necessary, adjust the feedbox

motor has stopped completely. Also, lock out

linkages (see figure 5.34).

machine.

Figure 5.33

FEEDBOX ADJUSTMENT.

Figure 5.34

FEEDBOX LINKAGE.

466361F9710US F1 29OC99

5-23

SECTION 5

MOLD INSTALLATION

5.8

COMPRESSION CALCULATION

Letter E is the height of the stripper shoes above

end liners (letter C is the amount of compres-

5.8.1 To correctly evaluate the amount of compression

sion).

needed from the stripper head to make units of

the desired height, the operator must use the fol-

EX: Suppose the operator wants to make

lowing equation:

7 5/8" [194mm] high units in a 8 1/4" [209mm]

high mold with stripper shoes of 1 1/2" [38mm]

SAL = UH - MH + ST

thickness. The operator gets a result of

7/8" [23mm] for the height of stripper shoes

In this equation, UH represents Unit Height, MH is

above end liners:

Mold Height and SST is Stripper Shoes

Thickness. The result, SAL, is the height of the

7 5/8" - 8 1/4" + 1 1/2" = 7/8"

stripper Shoes Above end Liners.

Or, in millimiters:

194mm - 209mm + 38mm = 23mm

Figure 5.36 will help you visualize the equation.

Letters A, B and D represents respectively unit

height, mold height and stripper shoes thickness.

Figure 5.36

MOLD AND STRIPPER HEAD DIMENSIONS FOR HEIGHT PINS ADJUSTMENTS.

466361F9710US F1 29OC99

5-25

SECTION 5

MOLD INSTALLATION

5.9

SPRING OPENING ADJUSTMENT

how many flats you turn the right hand link (see

figure 5.38).

5.9.1 Turn height control “ON”, jog the machine until the

bottom of the mold side bars set down on the

5.9.5 Turn power back on. Hit MCR reset button.

machine side frame.

5.9.6 In order to keep stripper head frame level, turn

5.9.2 The spring opening should be between 1/32”

the left hand stripper head link in the same direc-

[0.8mm] and 1/16” [1.6mm] maximum (see figure

tion. Also turn it the same number of flats as was

5.37). This is all that is required to make most

used to turn the right hand link.

units on a DYNAPAC.

Note: Spring opening may differ on each side.

5.9.3 Shut off clutch and turn power off. Wait until

motor has stopped completely. Also, lock out

5.9.7 Jog the machine to the stripped-through position.

machine.

At this point, the stripper shoes should protrude

through the mold by 1/8” [3mm] to 1/4” [6mm].

5.9.4 If adjustment is needed, adjust the right hand strip-

per head adjusting link (clockwise for more, coun-

terclockwise for less); keep an accurate count of

From 1/32" to 1/16"

[0.8mm to 1/16mm]

Figure 5.37

SPRING OPENING.

Figure 5.38

STRIPPER HEAD LINK (RIGHT SHOWN).

5-26

466361F9710US F1 29OC99

SECTION 5

MOLD INSTALLATION

5.9.8

Shut off clutch and turn power off. Wait until

5.9.12 The machine is ready to run; final adjustment

motor has stopped completely. Also, lock out

may be needed when production is started. The

machine.

shock absorbers should be adjusted so they

take equal load on each side (see figure 5.39).

5.9.9

If adjustment is needed, adjust the shock

absorbers. Record the adjustment made for

future calibration.

WARNING: All safety guards must be in

place when the DYNAPAC

5.9.10 Start machine and run machine to second stop,

is running.

when height pins first meet.

5.9.11 Shut off clutch and turn power off. Wait until

motor has stopped completely. Also, lock out

machine.

Figure 5.39

SHOCK ABSORBERS.

466361F9710US F1 29OC99

5-27

SECTION 6

TIMING THE PALLET FEEDER

SECTION 6

TIMING THE PALLET FEEDER.

It is important that the pallet feeder be well synchronized with the rest of the machine. This adjustment

must be done before the machine is run for the first time and each time a mold change is done.

6.1 INITIAL CONDITIONS

6.1.1

No mold or head in machine.

6.1.5

Front delivery conveyor 31.25" [794mm] above

top of machine base (see section 4).

6.1.2

Inner frame adjusted for height (see section 4).

6.1.6

Make sure the pallet feeder drive chain and lug

6.1.3

Pallet receiver stroke set for mold (see section 4).

chains (see figure 6.1 and 6.2) are well adjusted.

To adjust those chains, follow the procedure pre-

6.1.4

Machine has no excessive wear or damage.

sented on the next two pages.

Figure 6.1

PALLET FEEDER DRIVE CHAIN.

Figure 6.2

PALLET FEEDER LUG CHAINS.

466361F9710US F1 29OC99

6-1

SECTION 6

TIMING THE PALLET FEEDER

B. PALLET FEEDER LUG CHAINS ADJUSTMENT

To adjust the pallet feeder drive chain tension, fol-

low this procedure (see figure 6.4 and 6.5):

With machine off, check tension of pallet feeder lug

chains. Adjust tension at rear end of pallet feeder.

A. Loosen the clamp bolts (A) on the inside and

Bottom strand of each chain sags down in center

on the outside of the machine.

by approximately 1/2" to 3/4" [13mm to 19mm];

recheck periodically.

B. Adjust the tension with the tensioning screw (B).

C. Tighten the clamp bolts (A).

B A

Figure 6.4

PALLET FEEDER CHAIN TENSIONING (RIGHT OUTSIDE VIEW).

Figure 6.5

PALLET FEEDER CHAIN TENSIONING (RIGHT INSIDE VIEW).

466361F9710US F1 29OC99

6-3

SECTION 6

TIMING THE PALLET FEEDER

6.2.13 Rotate block delivery drive CCW until punch

6.2.15 Run machine and, at the moment where the pal-

marks on high part of cam align with the center

let is beginning to be lifted off the chain, make

of the roller (A) (see figure 6.22).

sure the pallet is centered on the cradle. If pallet

is not in center of cradle, turn off machine and

6.2.14 Loosen the clamp bolt (B) and adjust the jack

readjust chains, refer to 6.2.8. When delivery

screw (C) on the right hand side of machine,

arms come all the way back (see figure 6.11),

until a piece of paper can just be slid between

drive link to cam must be in line with gear box

the cam and roller. Tighten clamp bolt (B).

shaft; if not adjust actuator for LS-6 (see figure

6.19).

Figure 6.22

BLOCK LOWERING ARM ADJUSTMENT.

6-12

466361F9710US F1 29OC99

SECTION 7

ROTARY SENSOR SETTING

SECTION 7

ROTARY SENSOR SETTING

The rotary sensor setting should be done each time the rotary sensor has been removed or disconnected. It

should also be done after a “rotary sensor is out of sync.” fault has appear on the screen.

7.1 As an initial condition, cycle the machine to the “first

7.3 Run the machine to “second stop” position which is

stop” position “First stop” is obtained when the

controlled by the rotary sensor. The roller should be

punch marks on the cam are in line with the

centered with the “second stop” marks on the pallet

roller.(see figure 7.2). In this position, the feedbox

receiver cam. “Second stop” is the point where the

should be all the way forward and the roller should be

stripper head shaft roller just falls off the high lobe of

centered on the first stop mark of the pallet receiver

the stripper head raising cam. The stripper head rais-

cam. At this point, the “Rotary sensor value” should

ing cam is the second cam from the outside on the

be indicating 100⁰on the rotary sensor adjustment

right side of the machine (see figure 7.4).

screen (see figure 7.1, for more details see section

10.4). To reach this screen, press “F2” from the main

Note: As the machine ran from first stop to second

menu.

stop, the value must count in a positive direc-

tion (meaning from 100⁰ to 180⁰ in 1⁰ incre-

7.2 If the rotary sensor value shown in the screen is not

ments). If the value is not incrementing in a

100⁰, loosen rotary sensor coupler (A) (as shown in

positive direction, rotate the screw on the back

figure 7.3) and make adjustment. To adjust, turn

of the rotary sensor to opposite position.

rotary sensor coupler until 100⁰ is reached. Use the

screen to monitor the rotary sensor. Make sure you

tighten rotary sensor coupler before resuming adjust-

ment.

ROTARY SENSOR

VALUE

Figure 7.1

ROTARY SENSOR ADJUSTMENT SCREEN.

466361F9710US F1 29OC99

7-1

SECTION 8

OPERATING THE MACHINE

SECTION 8

OPERATING THE MACHINE

8.1

OPERATING THE DYNAPAC

This section will guide you, the operator, through the

The pallet has to be lifted at one point in the process; a

actual operation of the DYNAPAC. First, read the

cam does that. A stripper head frame is also connected

sequence of the machine in order to have a good

to two different cams to move it up and down. A strip-

understanding of how the machine works and how you

per head, which is part of the mold, has to be installed

can make adjustments to produce perfect concrete

on the stripper head frame. This stripper head will

blocks or pavers. Of course, the machine has to be

press on top of the units to compact them. A pallet

setup before it can be operated properly. Adjustments

receiver frame is located below the stripper head. This

on the pallet feeder, on machine timing and on adjust-

component holds the pallet and the mold in place dur-

ments for specific molds have to be made prior to the

ing the concrete unit forming process (stripper head is

sequence outlined in this section.

pressing and the mold is vibrating). The pallet receiver

is connected by links to a cam on the main shaft to

move up and move down through gravity. The last two

cams will bring a feed box forward and back. This feed

8.2

HOW A CONCRETE PRODUCT

box pushes the material (concrete) to the mold.

MACHINE WORKS

Concrete will fall into the feedbox through a hopper

located on top of the machine. An agitator grid placed

The DYNAPAC is a three-at-a-time block machine

in the feedbox will agitate the material as it falls in the

rated at up to 1,800 blocks per hour. A concrete unit is

mold for better distribution of the concrete. The Agitator

made when concrete is fed into a mold and is then

is powered by a motor located on the feedbox.

vibrated and compacted. Once it has been compacted,

it is stripped out of the mold and delivered onto a con-

Finally, one motors on each side of the machine vibrate

veyor. Many types of molds can be fitted on the

the mold. The vibration occurs when the concrete is fed

machine to obtain a wide variety of products.

in by the feedbox and when the units are being com-

pressed by the stripper head. Vibration only lasts a few

Refer to section 3 “MACHINE DESCRIPTION" to learn

seconds but it is crucial to making concrete units.

about the names and locations of the machine’s com-

ponents.

All of the machine’s movements are controlled by cams

located on a main shaft. As the cams turn with the main

shaft, they activate rollers which are connected to link

rods which in turn are connected to the components.

These components either go forward and back or up

and down. One cam brings a component forward (or

up) and another brings it back (or down). The main

shaft is powered by a motor and a clutch. The motor

runs all the time. It is the clutch that will stop and start

all machine movements. The only operation not activat-

ed by the main cam is the block delivery arm which

feeds empty pallets to the mold and pallet with blocks

to the exit conveyor. This component is powered by a

motor and is independent because it sometimes has to

keep running while the rest of the machine is stopped.

466361F9710US F1 29OC99

8-1

SECTION 8

OPERATING THE MACHINE

8.3

MACHINE SEQUENCE OF OPERATION:

1. Machine cycle begins with feedbox ready to start forward when main drive clutch solenoid is energized.

2. With feedbox on its way forward, vibrators and agitators begin functioning.

3. Feedbox completes its forward stroke and stops over mold. At this point, the machine stops (at the position called

"FIRST STOP").

While in "first stop", the following occurs:

- Feed timer is turned ON

- Feed timer times out, which re-starts machine.

4. Feedbox returns to home position, at which time-

- Agitator turns OFF

(At this time, machine keeps cycling)

5. Stripper head drops onto concrete in mold. At this point, machine stops (this position is "SECOND STOP").

While at "second stop", the following occurs:

- Height pin control circuit is turned ON

- Finish timer starts and autofeed control circuit is enabled.

- When height pins meet, finish indicator stops and delay timer begins. At this point, the autofeed mechanism or

feed time is adjusted, and if necessary (actual finish time was not equal to desired finish time).

- Delay timer times out which:

- Starts the strip delay timer - Turns off vibrators

- Strip delay timer times out which-.

- Turns ON main drive

6. Machine strips units from the mold. If a fault occurs, machine stops. If no fault occurs, pallet moving bars pick up

empty incoming pallet from pallet feeder conveyor. Pallet with block is deposited on block moving support fingers

while:

- Stripper head is raising

- Block moving bars travel to their most forward position.

- If limit switch LS-7 is tripped before rotary sensor reaches “third stop” position (approximately 25^o), NO "THIRD

STOP".

- If rotary sensor reaches “third stop” position before Ls-7 is tripped, main drive stops until LS-7 is tripped, this is

the "THIRD STOP" position.

7. Block moving bars lower and return to extreme rear position.

- LS-6 tripped which-stops Block moving bars.

Machine cycle is complete; a new one begins.

8-2

466361F9710US F1 29OC99

SECTION 8

OPERATING THE MACHINE

8.5

INITIAL STARTING POSITION

8.6

PROCEDURES TO RUN MACHINE FOR

FIRST TIME OR WHEN NEW MOLD

Make sure all the following are set properly.

HAS BEEN INSTALLED

Make sure “EMERGENCY STOP” button is pulled

Make sure pre-run procedures have been done and

out.

initial start-up position is obtained before going

through these adjustments.

Make sure “CLUTCH” switch is “OFF”.

First, the operator has to decide of the quality of con-

Make sure “VIBRATOR” switch is “OFF”.

crete units he wants to produce.

Press and release “MCR RESET” push button.

The quality depends on two (2) factors:

Machine will start.

-the mix.

-the machine adjustments.

Press and release “VIBRATOR START” push but-

ton. The vibrators will start.

The machine adjustments for making units are done by

adjusting the forming time and the autofeed adjust-

Press F1 from the run screen and verify all selec-

ment. The forming time includes the feed time, the fin-

tions are correct:

ish time and the delay time. The following is a descrip-

tion of these parameters on the machine which will help

- Height pins are [ENABLED].

you understand how to adjust the machine.

- Agitator is [ON].

Note: These explanations are better covered in sec-

tion 9: Hand & Machine Interface.

- Air compaction is [ON].

FEED TIME:

- Slump mode is [OFF].

Amount of time the feed box is stopped over the mold.

This will control the amount of material (concrete)

- Pallet cleaner is [OFF].

placed in the mold.

- Auto feed time adjust is [OFF].

FINISH TIME:

Preset time that you will expect desired finish time,

- Auto feed is in [AUTO].

from the moment stripper head shoes hit material to

when height pins meet each other. Machine will adjust

- Auto height pin by pass is [DISABLE].

the finish time by adjusting the autofeed mechanism or

the feed time (the operator has to select which one he

- Dual vibration is [OFF].

prefers the machine to change. See section 9.3: "Hand &

Machine Set-up".

Set the “VIBRATOR” switch to “AUTO”.

DELAY TIME:

Set “CLUTCH” switch to “ON”.

The time of vibration after height pins meet.

Note: Enabling these items may not be required for all

STRIP DELAY TIME:

products.

Time from the moment vibration stops to when units

are stripped out of the mold. Note that the strip delay

does not influence the quality of the units. The strip

The machine will sound an alarm for 7 seconds and

delay will simply slow down the process.

begin cycling.

1. Adjust parameter for feed time to approximately

To stop the machine, set the clutch switch to “OFF” or

1 1/2 seconds.

push in the “EMERGENCY STOP” button.

2. Adjust parameter for finish time to approximately

1 1/2 seconds.

8-4

466361F9710US F1 29OC99

SECTION 8

OPERATING THE MACHINE

Adjust parameter for delay time to approximately

1 1/2 seconds.

Set "Autofeed" to "MAN" position.

Adjust it to 1/2" [13mm].

Start making units (start machine) (see section

8.5).

Check units coming out. Check for cracks, dimen-

sions and density.

If units are not perfect, modify finish time until units

are perfect. To modify finish time, refer to section

9.5: "Timer adjustment".

If units continue being cracked, check delay time; it

is probably not sufficient. Too much material intro-

duced in the mold can also cause the cracks.

10. If the units are still not perfect, see section 10:

"Troubleshooting" for more details.

11. Set the "Autofeed Mechanism" to "auto". See sec-

tion 9.3: "Hand & Machine Set-up".

Note: We strongly suggest you use the "Autofeed

Mechanism" for most units. It will allow you to

produce consistent products. The use of

"Autofeed Mechanism" is not recommended for

low height units.

466361F9710US F1 29OC99

8-5

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