Patty-O-Matic PS21 User manual

Model PS21
Owner’s Manual
Revised October 2019
Patty-O-Matic Inc.
Route 547 P.O. Box 404 Farmingdale NJ,07727
[phone] Toll Free in USA: 877-938-5244
www.pattyomatic.com
[email protected]
E469483
NSF/ANSI 8
E475191

2
Table of Contents
• Introduction to Your Machine Page 3
• Installing Mold Plate Guard Page 3
• Installing Feed Tray Page 3
• Accessories Included with the Model PS21 Page 4
• Parts to Become Familiar with Page 5
• Label Location and Description Pages 6&7
• Operating Procedure Page 8
• Setting Ring Pin Pressure Plate Page 8
• Changing Mold Plate and Spacer Plate Page 9
• Proper Disassembly for Cleaning and Sanitizing Page 10&11
• Installing Patty Paper Page 12
• Points of Lubrication Page 12
Parts Representation
• Feed Tray Assembly Page 13
• Mold Plate Guard Assembly Page 13
• Knock Out Cup Assembly Page 13
• Hopper Assembly Page 14
• Feeder Assembly Page 14
• Assembled Machine Views Page 15
• Paper Interleaver Assembly Page 16
• Ring Pin Pressure Plate Page 17
• Mold Plate Assembly Page 17
• Assembled Hopper and Feeder Page 17
• Electrical Switches Page 18
• Tower Assembly Page 19
• Main Shaft Assembly Page 20
• Crank Housing Assembly Page 21
• Motor To Main Shaft Page 22
• Knock Out Cam Assembly Page 23
• Knock Out Shaft and Lever Assembly Page 23
• Main Motor Side View Page 24
• Mold Plate Guide Rails Page 24
• Main Shaft Outside Machine View Page 24
• Wiring Diagram Page 25
• Warranty Information Page 26
• Important Information Guide Page 27
• Notes Page 28

3
Installing the Mold Plate Guard
Loosen Guard Bolts on the Hopper
and the rear post. Place Mold Plate
Guard under the washers located
under the bolt heads. Tighten bolts
using the provided Speed Driver.
To activate the interlock, slide push
rod into the plunger, inside the
keylatch, and turn rod to the right.
This will lock the push rod in place
and activate the interlock.
Installing the Feed Tray
Place stainless steel tube of Feed
Tray over the Hopper. Make sure
the Plunger on the bottom of Feed
Tray depresses the Tower Stem
inside the Tower Sleeve.
Installing Machine onto Riser
Platform
Place machine on the riser platform
making sure the 4 legs of the
machine go into the 4 leg wells on
the Riser Platform. The Picture
shown shows the front view of the
Riser Platform.
Leg Wells
Thank you and congratulations on the purchase of your new Model PS21 Patty Molding Machine from
Patty-O-Matic, Inc! The Model PS21 will form, interleave paper between, and stack patties. This machine is
designed for easy operation and cleaning. Please become familiar with this manual and your machine will
give you many years of service.
The Model PS21 is shipped to you in at least three cartons which contain the patty machine, feed tray,
mold plate guard, spare parts box, receiving table, riser platform, and the manual. If you purchased your
machine with any other accessories, such as a mobile table or patty paper, these items may be in a separate
carton.
Your machine is equipped with two interlocks. One is located on the front of the machine and one is
located on the top of the machine. The Mold Plate Guard must be installed on the machine to engage the
interlock on the front of the machine and the Feed Tray including the guard must be installed on top of the
Hopper to engage the interlock on top of the machine.
Guard Bolts
Interlock Tower
Push Rod &
Round Keylatch
Plunger located
on back of Tray
If you have any questions or concerns after reading these
instructions, please do not hesitate to contact the factory at:
732-938-2757 or [email protected]
Feed Tray
Feed Tray
Guard

4
Accessories Equipped with the Model PS21
1
2
Item# Description Part #
1 Spare Parts Box 655
Holds Spare Parts, Patty Paper Sample, Machine Lubricant, Speed Driver, and
Locator Rings c/w instructions
2 Receiving Table 609-6
3 Speed Driver 544
4 8 Ounce Bottle of Machine Lubricant and Cleaner 600
5 Gallon of Machine Lubricant(Separate Order Only) 600A
6 Machine Locator Rings 610-2
6
3
4

5
Please become familiar with some of the parts
of your machine prior to operating machine
Mold Plate Assembly Side View
T-Knob
Mold Plate Assembly Underside View
T-Knob Hole
Feed Tray Guard
Feed Tray Guard and Mold Plate Guard are installed for your
safety. Do not tamper with them in any way!
Mold Plate Guard
Knock Out Cup
Assembly
Refer to Page 12
Please become familiar with some of the parts
of your machine prior to operation
Back Drive
Ring Pin
Hopper
Retaining Rod
Feeder
Retractable
Meat Stop
Pressure
Plate
Mixer
Collar
Chamber
Lid
Feeder Washer
Feeder Top
View
Feeder Side
View
Double Seal
Spacer Plate
Ring Pin Pressure Plate

6
Proper Label Location for a Model PS21
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3
1
5
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7
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10
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11
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12
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8

7
Item # Description Part#
1. Danger Label 3 514-09a
2. Warning Orange 514-02
3. Patty-O-Matic 514-08
4. Safety instructions 514-06
5. Danger Label 2 514-00
6. Serial Tag For UL Machines 514-15UL
7. Store Tool 514-14
8. Warning Manual 514-01
9. Danger on/off 514-05
10. Do Not Pressure Wash 514-04
11. Unplug Machine 514-07
12. Made in USA 514-19

8
Setting the Ring Pin Pressure Plate for your Patty Size
The Purpose of the Pressure Plate is to entrap the amount of product necessary to form your
patty. This part is also used in controlling the firmness of your patty. With the Pressure Plate set
correctly you will in turn have:
- less leakage, oozing, and coating of parts
- less over working of your product
- and less strain on your machine.
-----------------------------------------------------------
If your patty weight is 8 ounces, keep the ring pin in the storage hole as described in the
picture. This will allow the Pressure Plate to move all the way into the Hopper and stop on the
welded stop, which traps the most product and is the maximum volume setting.
If your mold cavity is for 4 ounces, remove the ring pin from the storage hole and place it in
the 4 ounce hole.
If your mold cavity is for 6 ounces, place the ring pin in the 6 ounce hole.
If you would like to have a tightly packed patty, move the ring pin to a higher than
recommended setting for that particular weight.
THESE ARE ONLY RECOMMENDED SETTINGS. A VARIETY OF CIRCUMSTANCES MAY
CALL FOR YOU TO INSERT THE RING PIN IN A DIFFERENT LOCATION.
2
1
3
5
6
1 - Ring Pin in storage hole
2 - 2 ounce hole
3 - 3 ounce hole
4 - 4 ounce hole
5 - 5ounce hole
6 - 6 ounce hole
7 - 7 ounce hole
1
8
4
7
Proper Procedure for Operating a PS21
When the Model PS21 is fully assembled with all guards secured in their proper place, put product to be
molded in the Feed Tray. Push the product through the holes in the Feed Tray Guard, or under the Feed Tray
guard and into the Hopper. DO NOT PUT HANDS OR FINGERS, OR FOREIGN OBJECTS, SUCH AS
STOMPERS OR PLUNGERS INTO THE HOPPER. THERE ARE NO STOMPERS OR PLUNGERS
NECESSARY WHEN USING THIS UNIT, THEREFORE NONE ARE SUPPLIED. After you allow
product to drop into the Hopper turn the machine on by moving the On/Off switch down towards the on position.
The machine may need to cycle a few times to prime the machine with product. As patties are being formed
continue to push product through the holes and under the Feed Tray Guard. Patty paper may be added to the
machine as needed. The machine can hold up to 1 inch of paper at a time, but no more.
As the Mold Plate moves back and forth to form patties, a thin coating of product may accumulate over its
surface. This coating may also accumulate on the edges of the Knock Out Cup or on the front of the Hopper and
Spacer Plate. This accumulation does occur on all molding machines. It is nothing to be concerned with. There
are certain machine settings that may lessen this accumulation.

9
Mold Plate and Connecting Arm Rear View
Hopper Front View Double Seal Spacer Plate
Back Drive
Connecting Arm
Mold Plate
Ring Pin
Retaining Rod
Guard Block
Thickness
Fraction Stamp
Retaining Rod
Location Hole
T-Knob
Double Seal
Spacer Plate
Changing Your Machine’s Mold Plate
Always disconnect the machine from its power source
before attempting to change or clean any of the machines component parts.
If the Mold plate is all the way into the machine, remove the T-Knob from the Back Drive by lifting the ring
pin and unthreading the knob. Pull the Mold Plate out from the back of the machine. If the Mold Plate is slightly
out of the machine and you prefer to remove it without removing the T-Knob, simply pull the ring pin out and
unhook the Connecting Arm from the T-Knob. Then slide the Mold Plate from the back of the machine.
When changing the Mold Plate always use the corresponding Double Seal Spacer Plate and Knock Out Cup.
The thickness fraction stamped on the Double Seal Spacer Plate should match the fraction stamped on the front
right corner of the Mold Plate. For example: if your Mold Plate is stamped “4F ½” then the Double Seal Spacer
Plate should be stamped “1/2”. The Double Seal Spacer Plate is held in place by the Retaining Rod. The Retaining
Rod is secured by a spring into the Guard Block. Lift the Retaining Rod up and to the side so it does not protrude
into the Double Seal Spacer Plate. There is no need to remove the Retaining Rod from the Guard Block. After
putting the new Mold Plate and corresponding Double Seal Spacer Plate into the machine, lift the Retaining Rod
and let it go into the hole located on the front of the Double Seal Spacer Plate. Make Sure that the Double Seal
Spacer Plate is in the locked position and the O’Rings are facing up. Failure to do so may cause the Double Seal
Spacer Plate to move with the Mold Plate, and could damage the machine. Since no Double Seal Spacer Plate is
required when using a 3/4” Mold Plate, leave the Retaining Rod in the storage position.
This Side Up

10
- Remove the four Hopper Bolts using the
provided speed driver. The two bolts on
the Chamber Lid may be removed for
additional cleaning.
- Remove Pressure Plate by detaching
Pressure Plate Spring and sliding Pressure
Plate from inside of the Hopper. Pull
Retractable Meat Stop out of the hopper
until it stops. Remove feeder by loosening
bolt using the tool provided. Twist feeder
washer away from bolt and lift feeder from
the inside
- Remove Feed Tray by lifting it off the
Hopper, and Mold Plate Guard by
loosening the Guard Bolts, and unlatching
the push rod.
- Remove the Mold Plate by pulling the ring
pin and disengaging the Connecting Arm
from the T-Knob. This will allow the Mold
Plate to be removed from between the Guide
Rails and removed from the machine. The T-
Knob may also be un-screwed from the Back
Drive as an alternate means of disassembly.
Proper Disassembly for Cleaning
your Model PS21
Always Unplug Machine from its
Electrical Source Before Cleaning
-Loosen the two Hopper Bolts using the
disassembly tool provided. The two bolts on
the chamber lid may be loosened to be able to
remove the Chamber lid for additional
cleaning if necessary.
10
Feed Tray
Mold Plate Guard
Chamber
Lid
Guard Bolt
Hopper Bolts
Hopper
Main Shaft
Mold Plate
Back Drive
T-Knob
Spacer Plate
Connecting Arm
Retractable
Meat Stop
Ring Pin
Guard Bolt
Feeder
Washer
Pressure Plate
Spring
Pressure Plate
Chamber
Lid Bolts
Main Shaft
- Remove Hopper by sliding it toward the
on/off switch and lifting it off the Main
Shaft.
- After the Hopper is removed from the
machine, remove Spacer Plate from the top
of the Mold Plate. *Note--Occasionally the
Spacer Plate sticks to the bottom of the
Hopper. 3/4” Molds do not use a spacer
plate. Retaining Rod should be left in
storage position when using a 3/4” mold.

11
!
*To Re-Assemble the Machine reverse the above procedure. Hopper bolts should only be hand
tightened with the speed driver provided.
*The Knock Out Cup Should be installed on the Machine before the Feed Tray and Mold Plate
Guard, but after all other parts are in place. The Mold Plate should be all the way forward and the
Knock Out Arm should be in the down position for the cup to align with the Mold Plate properly.
Patty-O-Matic Inc. offers the highest quality patty paper, machine lubricant, and
machine grease. Please contact the factory for information on these products.
732-938-5244 www.pattyomatic.com [email protected]
Paper Sleeves Stops should be
adjusted for different size patty paper
- Remove the Knock Out Cup by loosening
the Knock Out Knob while holding the other
end of the bolt with the Speed Driver
provided with the machine.
- All of the parts that were removed from the
machine can now be washed and sanitized
thoroughly. USDA recommends the
sanitizing solution should be 50 parts per
million but no more than 200 parts per
million. The machine itself should be
cleaned and sanitized by hand. After all
the parts are cleaned, sanitized and dry
they should be coated in mineral oil as an
extra protectant.
DO NOT HOSE DOWN OR PRESSURE
WASH THIS MACHINE!
Installing Patty Paper on Interleaver
-Place a stack of paper no thicker
than 1 inch under the pressure foot.
Slide the hole in the paper over the
center pin.
*Placing more than 1 inch of paper
may cause improper paper feeding.
Center Pin
Shown without guard for better visual
Knock Out Knob
Speed Driver
Pressure Foot
Paper Sleeve Stops
Knock Out Cup

12
!
Points of Daily Lubrication For
Your Model PS21:
The Following Parts should be lubricated daily
- Pressure Foot should be lifted up
and oiled. Hold the Acorn Nut and
lift up. Place a few drops of oil on
the Pressure Foot shaft.
Always Unplug Machine and use Food Approved Oil and Grease!
- Knock Out Shaft should be oiled
when the Knock Out Arm is in the
up position. The picture shown
displays the Arm in the up position.
- Tower Stem should be oiled when the
Feed Tray is removed as shown.
- Rod End Bearings should be oiled
with a few drops of oil. There are two
Rod End Bearings to be oiled. Do not
allow oil to drip onto the Conveyor
Belt.
- Main Shaft should be oiled when the
machine is disassembled as shown in this
picture. Be sure to oil the bottom of the shaft
by the Hopper Bushing.
- The inside of the machine can be lubricated
through the Rear Inspection Opening. By
spraying lithium grease here, you can
lubricate all internal moving components.
- The Grease Fitting on the side of the machine
by the On/Off switch should be greased once
every two weeks. 3 to 4 shots of grease are
recommended.
Tower Stem
Pressure
Foot Shaft
Rod End
Bearings
Main Shaft
Acorn Nut
Rear Inspection
Hole
Grease Fitting
located on this side
Conveyor Belt
Knock Out Shaft
Knock Out Arm

13
!
Grease Fitting
Item# Description Part #
1 Quick Feed Tray Guard Assembly 543-QP
2 Feed Tray Guard Hardware 541-B
3 Stainless Steel Flange Support 554
4 Mold Plate Guard Assembly PS21-550SC
5 Push Rod Collar 553-1B
6 Push Rod 553-5
5&6 Push Rod and Collar Assembly 553
7 Knock Out Knob PS21-571-7
8 Knock Out Arm (partial view) 502B
9 Knock Out Cup Plastic Washer 571-6
10 Round Knock Out Cup(Specify Size) 571-1
11 Knock Out Cup Flat Washer and Lock Washer 571-8
12 Knock Out Air Valve (shown in red for visual affect) 571-4
13 Knock Out Cup Bolt 571-9
14 Knock Out Cup Fender Washer 571-10
15 Feed Tray Tower Plunger and Bolt(Located on the bottom
of the feed tray) 620-17
-Knock Out Cup Assembly is Part #PS21-571
-Knock Out Cup Hardware Only is Part #PS21-571-H1
Poly Coved Feed Tray
Mold Plate Guard
Knock Out Cup Assembly
Knock Out Cup Assembly
Exploded View
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6
2
8
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13

14
2-1/4”
space
Item# Description Part #
1 Hopper Casting PS21-545
2 Chamber Lid PS21-545-A
3 Hex Hold Down Bolt (also used as Hopper hold down) 556B
4 Retaining Rod PS21-551-1C
5 Guard Block PS21-551-C
6 Retractable Meat Stop PS21-555
7 Pressure Plate Block Hardware 548-CR
8 Pressure Plate Block Assembly PS21-547-YR
9 Feeder PS21-557
10 Retaining Rod Spring 551-1A
11 Hopper Threaded Plug 607
12 Guard Block Mounting Screws PS21-551-C1
13 Feeder Washer PS21-560
14 Mixer Collar Set Screw 559
15 Mixer Collar PS21-558
16 Shear Key and Screw PS21-562
17 Feeder Washer Bolt PS21-558B
Hopper Front View
Hopper Rear View
4
5
Feeder Top View
Hopper Bottom View
11
12
13
14
7
9
3
4
10
8
7
5
3
2
1
6
15
16
17
6

15
Many parts are also sold as assemblies. Please
contact the factory for further information:
Toll Free in the U.S.A. 877-938-5244
Outside the U.S.A. 732-938-2757
Machine Front View
Machine Left Side View
Machine Rear View
Machine Right Side View
Item# Description Part#
19 Feed Tray Tower Sleeve 620-16
20 Feed Tray Tower Block 620-6
21 Tool Holder 601
22 On/Off Switch 500
23 Power Cord 115-01
24 On/Off Switch Guard 501
25 Round Key Latch Assembly PS21-553-R
26 Plunger Switch(Located inside machine) 608-1B
27 Ring Pin Pressure Plate 546-3
28 Mold Plate Back Drive 564
29 Connecting Arm 455
30 T-Knob 567
31 Grease Fitting 701
32 Knock Out Spring Threaded Holder 490E
33 Ring Pin 546C
34 Weight Shaft Support Hardware 530
Item # Description Part #
1 Paper Interleaver Arm and Bolts PS21-505
2 Knock Out Arm and Bolts 502B
3 Knock Out Cup 571-1
4 Paper Weight 532
5 Knock Out Bumper PS21-504
6 Knock Out Shaft PS21-449
7 Conveyor Belt 534
8 Pressure Bolt Tip 506D
9 Pressure Bolt PS21-506
10 Pressure Foot Spring 508
11 Pressure Foot Hardware PS21-506B
12 Paper Interleaver Arm Bolt(2) PS21-505-1
13 Knock Out Shaft Acorn Nut 503
14 Knock Out Spring Tab PS21-498C
15 Knock Out Spring PS21-490
16 Knock Out Arm Bolt(2) 502-1
17 Knock Out Shaft Bushing (white bushing pressed
into Machine Frame) 462
18 Paper Interleaver Arm Bushing (white bushing)
505-1B
1
2
3
4
6
7
8
9
10
11
12
5
34
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32
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24
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29
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31
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16
!
Paper Return
Bracket
Paper Motor
Paper Interleaver Top View
Item # Description Part #
1 Paper Interleaver Motor c/w
Extension Shaft 516
2 Weight Shaft 527
3 Weight Shaft Support 529
4 Rod End Hardware 523
5 Rod End Bearing (2 required) 522
6 Paper Interleaver Front Pulley 521
7 Paper Weight (2 required) 532
8 Interleaver Adjustment Slots N/A
9 Paper Interleaver Back Pulley 520
10 Pin Holder Bolt and Nuts
(2 required) 526
11 Paper Pin, Nuts, and Washers 525
12 Paper Pin Assembly 524-A
13 Motor Extension Shaft and Screws 517
14 Paper Sleeve Stop 248A
15 Stainless Steel Paper Pivot Rod(2) 247
16 Paper Stop 248
17 2 Return Bracket Mounting Screws249
18 Left Return Spring 246L
19 Right Return Spring 246R
Item# Description Part#
20 Spring Adjusting Collar w/ set screw 244
21 Set Screw (one in each collar) 245
22 Pivot Rod Support Bracket 243
23 Paper Motor Cover c/w Hardware PS21-537
24 Interleaver Support Hardware 499
25 Interleaver Support Bar PS21-497
26 Interleaver Support Bar Spacers PS21-498
27 Weight Shaft Hardware 528
28 Conveyor Belt 534
29 Conveyor Belt Guard PS21-536
30 Paper Interleaver Casting Frame 519
31 Weight Shaft Spacers (Not Shown) 531
32 Interleaver to Support Bar Hardware PS21-539-1
5
5
10
1
2
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7
4
4
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25
32
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20
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15
24
23
27
28
29
30

17
!
Hold Down Bolt
Ring Pin Pressure Plate
Mold Plate Bottom View
PS21 Feeder Washer
& Shear Key
Hopper and Feeder Assembly
Double Seal Spacer Plate
May be metal
Mold Plate Side View
Item # Description Part #
1 Pressure Plate Spring and collar 549
2 Ring Pin Adjustment Holes N/A
3 Ring Pin(shown in
the storage hole) 546C
4 Ring Pin Pressure Plate 546-3
5 Back Drive Stop Bolt 565
6 Mold Plate Back Drive 564
7 Air Grooves (colored for visual) N/A
8 Round Mold Plate Only 563-1
9 Set of Back Drive Hardware 568A
Item # Description Part #
10 Back Drive Clamp 568
11 T-Knob 567
12 Hopper Casting PS21-545
13 Hold Down Bolt 556B
14 Feeder Washer PS21-560
15 Retractable Meat Stop PS21-555
16 Shear Key and Screw PS21-562
17 Spacer Plate( Specify Size) 569DS
18 PS21 Feeder Washer bolt PS21-558B
19 Double Seal Spacer Plate O’Rings 569A
Part # PS21 -563 - Mold Plate Assembly
-Includes Round Mold Plate, Back Drive Assembly and Knock Out Cup Assembly
Other Shapes Available
4
2
1
3
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6
5
7
9
10
16
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14
14
13
15
12
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13
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19

18
!
Machine Switches Front View
Guard Switch Interior View
On/Off Switch Interior View
Tower Switch Interior View
Item# Description Part
1 Round Key Latch 609-A1
2 On/Off Switch Guard 501
3 On/Off Switch Boot 500B
4 Power Cord 115-01
5 Wire Grommet 487
6 Guard Switch 608-1B
7 Guard Switch Wire 608-1D
8 On/Off Switch (insulated in electrical tape) 500
9 Tower Switch 620-10B
10 Tower Switch Wire 620-10A
11 15 AMP Circuit Breaker 115-15
Part # 608-5A – Includes Guard Switch and Wire Part # 620-10 – Includes Tower Switch and Wire
8
7
1
2
3
4
5
6
1
9
10
11
3
3
11

19
!
Tower Assembly w/ Tower Block
Tower Assembly
Exploded Bottom View
Tower Assembly Top View
Item# Description Part #
1 Tower Sleeve 620-16
2 Tower Stem 620-3
3 Tower Tube 620-5
4 Tower Block 620-6
5 Tower Locator Lock Bolt 620-7
6 Tower Switch 620-10B
7 Rubber Seal 464S
8 Tower Block Hardware 620-8
9 Tower Jam Nut 620-06
10 Tower Spring 620-9
11 Tower Acorn Nut 620-15
12 Tower Bushing 620-4
13 Tower Switch Wire 620-10A
1
3
4
5
7
13
Tower Assembly
Machine View
6
2
3
6
10
1
11
9
12
2
3
1
3
8
4

20
!
Main Shaft Assembly Interior View
Main Shaft
Exploded View
2
3
5
1
2
7
9
10
3
11
12
5
1
Item# Description Part#
1 Main Shaft Bushing (pressed into Machine Frame) 470
2 Main Shaft Thrust Washer 469-1
3 Timing Sprocket 465T
4 Chain Tension Adjuster Bolt 463
5 Main Shaft Bearing (pressed into Machine Frame) 464A
6 Timing Chain and Link 471
7 Main Shaft Clamp 467
8 Main Shaft Clamp Hardware 468
9 Main Shaft Fender Washer and Hardware 240-1
10 Main Shaft Driven Sprocket(Specify Amount of Teeth) 240
11 Main Shaft Threaded Insert Set Screw 464-2
12 Main Shaft Threaded Insert c/w Set Screw and Locking Nut 464-1
13 Main Shaft Sprocket Key 241
14 Grease Line System(Not completely shown) PS21-704
15 Main Shaft C/W Insert and Set Screw 464
8
7
6
4
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15
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10
13