Oliver 619-16 Installation Manual

Grand Rapids, Michigan, U.S.A. 49504-5298

USER’S OPERATING AND INSTRUCTION MANUAL

MODEL 619-16
MODEL 619-20
MODEL 619-24

MODEL 619-24R

DOUGH DIVIDERS

0619S20000-CVR

MODEL 619-16,20,24,&24R DOUGH DIVIDERS

INDEX

SAFETY INSTRUCTIONS.......................................................................... 0619S20001

DESCRIPTION/SPECIFICATIONS............................................................. 0619S20002

Description/Dimensional Specifications......................................... 0619S20002-1/3

Electrical Specifications/Wiring Diagrams...................................... 0619S20002-2/3

OPERATION INSTRUCTIONS................................................................... 0619S20003

MAINTENANCE.......................................................................................... 0619S20004

Cleaning......................................................................................... 0619S20004-1/6

Lubrication...................................................................................... 0619S20004-1/6

Hydraulic Oil Specifications............................................................ 0619S20004-1/6

Hydraulic Filter Replacement......................................................... 0619S20004-2/6

Removing The Lid.......................................................................... 0619S20004-2/6

Replacing The Locking Hook Or Cam............................................ 0619S20004-2/6

Replacing Plastic Bottom Element................................................. 0619S20004-3/6

Changing The Blades.................................................................... 0619S20004-3/6

Replacing The Thrust Plate............................................................ 0619S20004-4/6

Replacing The Hydraulic Cylinder.................................................. 0619S20004-4/6

Removing The Motor .................................................................... 0619S20004-5/6

Changing The Pump Or Coupling.................................................. 0619S20004-5/6

Replacing The Control Valve ........................................................ 0619S20004-6/6

Cleaning Instructions ……………………………………………….. 0619S20143

TROUBLESHOOTING............................................................................... 0619S20005

RECOMMENDED SPARE PARTS LIST.................................................... 0619S20006

PARTS LIST.............................................................................................. 0619S20007

MAIN FRAME ASSEMBLY DRAWING...................................................... 0619S20008

COVERS ASSEMBLY DRAWING............................................................. 0619S20009

HYDRAULIC ASSEMBLY DRAWING........................................................ 0619S20010

LID ASSEMBLY DRAWING....................................................................... 0619S20011

PUSHER-16 PART ASSEMBLY DRAWING.............................................. 0619S20043

PUSHER-20 PART ASSEMBLY DRAWING.............................................. 0619S20012

PUSHER-24 PART (SQUARE) ASSEMBLY DRAWING............................ 0619S20013

PUSHER-24 PART (ROUND) ASSEMBLY DRAWING ............................. 0619S20044

WARRANTY............................................................................................... GEN040225

WARRANTY PROCEDURE…………………………………………………… GEN040226

RETURN PARTS POLICY.......................................................................... GEN040227

REV. 6/2/2010 0619S20000

MODEL 619-16, 20, 24, & 24R DOUGH DIVIDERS

SAFETY INSTRUCTIONS

Every effort has been made by Oliver Products Company to provide you with a safe
machine. It is essential, however, that machine operators and maintenance personnel
observe the following safety precautions.

1. Before attempting to operate your divider read this manual. Never allow an
untrained person to operate this machine.

2. Make sure that the machine is only connected to a properly grounded electrical
supply source of sufficient capacity for the load the divider will put on it. Always
unplug the machine when it is not in use.

3. Always make sure the machine has been disconnected from the power supply
before cleaning or servicing.

4. All guards must be in place before starting the machine.

5. Keep your hands away from the moving parts of the machine.

6. Use only proper replacement parts.

7. Do not wear loose fitting clothing. Shirt tails should be tucked in.

8. In addition to these general safety instructions, also follow the more specific safety
instructions given for the different areas of the machine in the operating instructions.

REV. 1-31-96 0619S20001

MODEL 619-16, 20, 24, & 24R DOUGH DIVIDERS

DESCRIPTION/SPECIFICATION

Description
The Oliver divider consists of a hopper which can be loaded with dough from a minimum

of ten and one half pounds up to forty-five pounds. The lid and sides of the hopper are
made of heavy cast aluminum. The moveable hydraulic floor of the hopper is made of a
collection of food grade plastic plates which, when moved upward, will compress the
dough until it completely fills the remaining area. At this point a group of stainless steel
knives come between the plates cutting the dough into equal weight, easy to use pieces.

This machine is ideal for pizza and bakery operations and is mounted on four casters for
easy movement about the work area. The divider can divide pieces as small as seven
ounces, on a 24 part divider, to as large as forty five ounces, on the 16 part divider. See
below for specific maximums.

The hydraulic pump is powered by a two horse power, totally enclosed motor. The
system has a built-in four and one half gallon hydraulic oil tank making the machine
totally self contained.

Physical specifications

REV. 1-31-96

OVERALL MACHINE DIMENSIONS

0619S20002-1

Physical specifications (continued)
Net Weight:

Approximately 455 pounds.
Shipping Weight:

Approximately 500 pounds.
Product Capacities:

Fill Capacity (approximate) = 10-1/2 to 45 pounds
Divided piece Size (approximate):

16 part dividers = 10-1/2 to 45 ounces
20 part dividers = 8-1/2 to 36 ounces
24 part dividers = 7 to 30 ounces

Electrical Specifications
2 Horse Power, 1 phase, 60 hertz, 230 Volts AC, 10 Amps.

2 Horse Power, 3 phase, 60 hertz, 208 Volts AC, 6.5 Amps.
2 Horse Power, 3 phase, 60 hertz, 230 Volts AC, 6.2 Amps.
2 Horse Power, 3 phase, 60 hertz, 460 Volts AC, 3.1 Amps.
Others consult factory

Electrical Wiring Diagrams

1 ph, 60 hz, 230 VAC

Rev. 1-31-96

0619S20002-2

Electrical Wiring Diagrams (Continued)
3 ph, 60 hz, 208/230 VAC

3 ph, 60 hz, 460 VAC

Rev. 5-24-96

0619S20002-3

MODEL 619-16, 20, 24, & 24R DOUGH DIVIDERS

OPERATING INSTRUCTIONS

Before You Start

CAUTION

THE DIVIDER SHOULD ONLY BE PLUGGED INTO AN OUTLET
WITH THE SAME VOLTAGE AS STATED ON THE NAMEPLATE

Before starting a new divider with THREE PHASE electrical power for the first time you
should check to see if the motor is running in the correct direction. Remove the front
cover by removing the four thumbscrews which secure it; you will also have to remove
the handle from the directional control lever before removing the front cover. Once the
cover has been removed you should be able to see the fan end of the motor on your
divider, this fan MUST rotate in a clockwise direction.

CAUTION

EXTENDED RUNNING OF A DIVIDER WITH THE MOTOR ROTATING
IN THE INCORRECT DIRECTION WILL SEVERELY DAMAGE THE
HYDRAULIC PUMP OF YOUR DIVIDER.

If the motor is rotating in the incorrect direction turn the machine off, disconnect it from
the power supply and have a qualified electrician reverse two of the three power wires in
the plug at the end of the power cord. DO NOT move the ground, (green), wire.

WARNING

ALWAYS HAVE ELECTRICAL WORK DONE BY QUALIFIED
ELECTRICIANS ONLY.

Recheck the divider making sure that it is now running in the correct direction,
(clockwise looking at the fan end of the motor).

Basic Operation

• Start by weighing out a piece of dough, which, when divided by the number of
compartments available on your divider, will provide you with the desired end weight.
For example: a thirty pound piece of dough after division on a twenty-four part
divider will yield twenty-four twenty ounce pieces, perfect for molding into one and a
quarter pound loaves of bread.

• Make sure the floor of the hopper has been lowered before attempting to open the lid
of the divider.

Rev. 5-5-00

0619S20003-1

Basic Operation (Continued)

• Open the lid and load the preweighed dough into the hopper. Spread the dough
over the floor of the hopper making it approximately the same height, this is done to
eliminate large air pockets and to insure equal division of the dough.

• Close the lid and turn the handle in a clockwise direction making sure it is secure.

• With the machine running grasp the control valve handle and lift it to start the floor of

the hopper up. Hold it in this position until the light on the starter switch box comes
on, this means that the upward stroke has stopped and that division is complete. Let
loose of the valve handle when you see the light come on.

• Press the control valve handle down slightly to release the pressure on the lid so it
can be opened. Open the lid.

• We suggest that the cut pieces of dough be removed as soon as possible to prevent
them from sticking together.

• The above process may now be repeated.

WARNING

NEVER

LEAVE DOUGH IN THE MACHINE; RISING DOUGH MAY

CAUSE EXPLOSIVE PRESSURES TO DEVELOP.

WARNING

NEVER

FORCE THE LID HANDLE OPEN

• If dough has been left in the machine and the lid handle is difficult to turn,
recompress the dough by lifting the control valve handle until the light come on. This
will raise the floor of the hopper, after doing so lower the hopper floor by pressing
down on the control valve handle. This may have to be done more than once if
dough has been left in the machine for quite awhile. With the hopper floor all the
way down try to open the lid again, the handle should turn easily, if it does not,
recompress the dough and try again.

• The divider is designed so that if dough is left in the hopper it will eventually force the
hopper’s floor to the bottom, thus allowing the dough to vent to the outside of the
machine through openings on the left side. If dough is coming out of these openings
follow the steps above recompressing the dough a number of times before
attempting to open the lid.

Rev. 5-5-00

0619S20003-2

MODEL 619-16, 20, 24, & 24R DOUGH DIVIDERS

MAINTENANCE

WARNING

ALWAYS MAKE SURE THE MACHINE HAS BEEN DISCONNECTED
FROM THE POWER SUPPLY BEFORE CLEANING OR SERVICING.

Cleaning
Remove- all scraps from lower pan. Open side doors and brushing out all scraps. Wash

all interior surfaces; Knives, pusher plates, hopper, lid surface with a damp rag and mild
soap solution. The exterior and contact surfaces should be cleaned daily using common
cleaners. The knives should be extended for easier cleaning. This can be done by
placing the cleaning separator, furnished with the machine, IN THE CENTER OF THE
HOPPER straddling the knives. Close the lid and bring the floor of the hopper up until
the light on the manual starter is on, lower the floor slightly. Open the lid and
disconnect the divider from the power supply. Clean the knives and plastic
compartment floors of all dough build-up. Rinse all interior surfaces with a damp rag and
clean water. Sanitize all interior surfaces with a damp rag and sanitizing solution. Air
Dry, leave divider lid open and allow interior to air dry before using.

CAUTION

IF NOT CLEANED A BUILD-UP OF DRIED DOUGH BETWEEN THE

PLASTIC FLOORS AND THE KNIVES COULD DAMAGE THE DIVIDER.

In addition to the general cleaning discussed above, it is important that you check for
and remove scraps of dried dough from between the blade holder and the bottom thrust
plate. This can be done by first extending the knives as described above and then by
removing the front cover from the machine by removing the four knobs and the control
valve handle. This will allow access to the blade holder area which can then be cleaned
of all dried scraps of dough. When finished replace the front cover.

Occasionally, as required, you should also remove the build up of flour and dough
particles in the base of the machine around the motor.

Lubrication
The machine requires no lubrication but the oil level in the hydraulic system should be

checked periodically. To check the oil level remove the rear cover by removing the four
knobs which secure it to the divider, then remove the tank breather/cap and determine
where the top of the oil is in relation to the top surface of the tank. Fill with oil to within
approximately one inch of the top surface. If necessary add HYDRAULIC OIL
it to the proper level, DO NOT OVERFILL

. In addition to the above we advise replacing

to return

the hydraulic oil in the system approximately every three years.

Rev 2/15/2010 0619S20004-1

Hydraulic Oil Specification
The hydraulic oil used in your divider should be made of good quality base stocks

compounded with the following additives: anti-wear, anti-oxidation, antifoaming, and
antirust. In addition it should be an “ISO” viscosity grade No. 32.

Rev. 7-30-02

Hydraulic Filter Replacement
At least once a year the throw-away filter on the hydraulic system should be replaced,

more often when under heavy use. To replace the filter remove the front cover unscrew
the old filter and replace it with a new one. The filter is located on the return line near
the tank.

Removing The Lid

• Remove the lid cover by removing the four screws which secure it in position.

• Open the lid as far as it will go.

• Release the tension on the two large torsion springs by moving the long leg of the

spring to the side and out from behind the bracket.

WARNING

USE CARE AS THE LID WILL DROP ONCE THE SPRING TENSION
HAS BEEN REMOVED.

• Close the lid and remove the right hand snap ring from the lid hinge pin and push the
pin to the left to remove it.

• Reassemble by reversing the above steps.

Replacing The Locking Hook Or Cam:

• Remove the lid cover by removing the four screws which secure it in position.

• Detach the spring from the hook.

• Open the lid.

• Turn the handle until the pin securing the cam to the shaft is in line with the notch in

the locking hook. Using a small drift punch force the pin upwards removing it from
the handle shaft.

• Pull the shaft and cam assembly forward out of the lid.

• The hook or locking cam can now be replaced.

• Reassemble by reversing the above steps.

Rev 2/15/2010 0619S20004-2

Replacing A Plastic Bottom Element

• Open the lid and raise the bottom of the hopper.

• Turn the machine off and disconnect it from the power supply.

• Remove the front and rear panels to gain access to the pusher components.

• Remove the nut securing the float to the thrust plate.

• Using a block of wood or other soft material to protect the threads on the float, force

the float and bottom element assembly upwards until it is free from the thrust plate
and then lift the assembly from the blades.

• Once the assembly has been removed, the bottom element can be disassembled
from the float by removing the fasteners from the under side of the element which
secure it to the float.

• Replace each float and element assembly by reversing the above steps.

Changing The Blades

• To ease removal of the blade assembly the front, rear, and side panels should first
be removed from the machine.

• Next remove all of the float and element assemblies, see replacing plastic bottom
elements covered above.

• Remove the nuts securing the four blade holder braces, to the star plate.

• Lift the entire blade assembly, (blades, blade holder, and braces), out of the hopper.

• Once removed, a blade or blades can be replaced. Remember it is important before

securing any blades that the blade holder and knife assembly be inverted on a
surface plate or other known flat surface, verifying that all the blades are level and in
line with each other. If no other flat surface is available the lid of the divider could be
removed and used for this purpose.

• Once complete, re-insert the assembly in the hopper and reverse the above steps to
re-assemble the machine.

Rev 2/15/2010 0619S20004-3

Replacing The Thrust Plate

• Should the thrust plate require replacement you should start by removing the blade
assembly as described above.

• Remove the bolt securing the thrust plate to the cylinder rod. Once this bolt is
removed the thrust plate can be lifted from the machine and replaced.

• When the machine is re-assembled the bolt securing the thrust plate to the cylinder
rod should be installed using “Loctite” adhesive to prevent loosening during
operation. The remaining components can be reinstalled by reversing the above
steps.

Replacing The Hydraulic Cylinder

• Using the four wedges extend the knives about half of their travel. Turn the machine
off and disconnect it from the power supply.

• To remove the hydraulic cylinder the front, rear, and side panels must be removed
from the machine.

• Place blocks of wood between the thrust plate and the cylinder mounting channel to
secure it during cylinder removal.

• Remove one of the center float assemblies, (see above procedures). Once this has
been done the bolt securing the thrust plate to the cylinder rod can be removed using
a universal socket style wrench.

• Remove the four screws securing the star to the outer cylinder rod.

• Remove the bolts securing both the main starter switch bracket and the limit switch

bracket to the hex support rods. DO NOT disconnect the wires.

• Remove one of the snaprings securing the yoke and safety lock pivot pin. Remove
the pin so that the linkage can be unhooked from the top of the machine.

• Remove the eight screws securing the cylinder to the cylinder mounting channel.

• Remove the four bolts securing the cylinder mounting channel to the lower hex

support rods.

• The upper portion of the divider can now be removed and set to one side.

Rev 2/15/2010 0619S20004-4