3M 3M-Matic S-857 Datasheet

Instructions and Parts List
S-857
"L" Clip Applicator
Type 29500
3M Packaging Systems Division
3M Center, Building 220-8W-01
St. Paul, MN 55144-1000
"Scotch" and "3M-Matic" are Trademarks
of 3M, St. Paul, MN 55144-1000
Litho in U.S.A.
©3M 1998 44-0009-1872-0(B18.0)
Serial No.For reference, record machine serial number here.
Read "Important Safeguards",
pages 3-4, BEFORE
INSTALLING OR
OPERATING THIS
EQUIPMENT.
Important Safety
Information
3
3M-Mati
c
TM

i
Intended Use............................................................................................................................... 1
Equipment Warranty and Limited Remedy .................................................................................. 2
S-857 Contents ........................................................................................................................... 2
Important Safeguards.................................................................................................................. 3 - 4
Specifications .............................................................................................................................. 5
Installation And Set-Up................................................................................................................ 6 - 9
Receiving and Handling .............................................................................. 6
Machine Set-Up .......................................................................................... 6
Mounting ..................................................................................................... 6 - 7
Air Regulator/Filter/Lubricator ..................................................................... 8
Tape Drum-Bracket Assembly ..................................................................... 9
Theory of Operation .................................................................................................................... 10 - 14
General Information .................................................................................... 10
Operational Explanation.............................................................................. 11 - 13
Rest Position, Air Off ............................................................................ 11
Rest Position, Air On ............................................................................ 11
Application Cycle, Cut/Buff Sequence .................................................. 12
Application Cycle, Feed Sequence....................................................... 13
Components................................................................................................ 14
Valves................................................................................................... 14
Cylinders .............................................................................................. 14
Operation ..................................................................................................................................... 15 - 16
Tape Loading And Threading ....................................................................... 15 - 16
Operating Sequence .................................................................................... 16
Adjustments ................................................................................................................................. 17
Tape Width ................................................................................................... 17
Tape Web Alignment .................................................................................... 17
Tape Drum Tension ...................................................................................... 17
Tape Tension Roller...................................................................................... 17
V-8 Valve Adjustment ................................................................................... 17
Air Flow Controls.......................................................................................... 17
Maintenance................................................................................................................................. 18
Blade Replacement...................................................................................... 18
Air Line Filter ................................................................................................ 18
Air Line Lubricator ........................................................................................ 18
Instruction Manual
S-857 “L” Clip Applicator
Type 29500
Table of Content Page

ii
Troubleshooting............................................................................................................................ 19 - 21
Troubleshooting Guide ................................................................................. 19 - 20
Air Line Connections/Tubing Length ............................................................ 21
Replacement Parts and Service Information ................................................................................ 23
Recommended Spare Parts ......................................................................... 23
How To Order Replacement Parts................................................................ 23
Repair Service.............................................................................................. 23
Replacement Parts Illustrations And Parts Lists ........................................................................... 24 - 39
Typical Mounting Set-Up .............................................................................................................. 41 - 42
Table of Content (Continued)

1
3M-Matic™ S-857 "L" Clip Applicator, Type 29500
The intended use of the S-857 "L" Clip Applicator is
to apply an "L" clip of Scotch™ brand filament tape
to most box corners.
The machine is designed for installation adjacent to
a conveyor system or on a stand for off-line systems,
the S-857 allows the operator to quickly apply the "L"
clip box closure. When a box is inserted into the
Intended Use
nest, the product paddle is depressed and the air
operating mechanism which applies the "L" clip tape
closure is activated causing the "L" clip to be
automatically applied to the box corner.
The S-857 "L" Clip Applicator has been designed
and tested for use with Scotch™ brand filament
tape.

2
Equipment Warranty and Limited Remedy: THE FOLLOWING WARRANTY IS MADE IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTY OF MERCHANTABILITY, THE IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR
PURPOSE AND ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF DEALING, A CUSTOM OR
USAGE OF TRADE:
3M warrants that its 3M-Matic™ S-857 "L" Clip Applicator, Type 29500 will be free from defects for ninety (90)
days after delivery. If any part is proved to be defective within the warranty period, then the exclusive remedy
and 3M’s and seller’s sole obligation shall be, at 3M’s option, to repair or replace the part, provided the defective
part is returned immediately to 3M’s factory or an authorized service station designated by 3M. A part will be
presumed to have become defective after the warranty period unless the part is received or 3M is notified of the
problem no later than five (5) calendar days after the warranty period. If 3M is unable to repair or replace the part
within a reasonable time, then 3M, at its option, will replace the equipment or refund the purchase price. 3M shall
have no obligation to provide or pay for the labor required to install the repaired or replacement part. 3M shall
have no obligation to repair or replace (1) those parts failing due to operator misuse, carelessness, or due to any
accidental cause other than equipment failure, or (2) parts failing due to non-lubrication, inadequate cleaning,
improper operating environment, improper utilities or operator error.
Limitation of Liability: 3M and seller shall not be liable for direct, indirect, special, incidental or consequential
damages based upon breach of warranty, breach of contract, negligence, strict liability or any other legal theory.
The foregoing Equipment Warranty and Limited Remedy and Limitation of Liability may be changed only by a
written agreement signed by authorized officers of 3M and seller.
“Scotch” and “3M-Matic” are trademarks of 3M, St.Paul, Minnesota 55144-1000
S-857 Contents
(1) S-857"L" ClipApplicator,Type29500
(1) Instruction and Parts List Manual

3
This safety alert symbol identifies
important messages in this manual.
READAND UNDERSTAND THEMBEFORE
INSTALLING OR OPERATING THIS
EQUIPMENT.
Important – In the event the following safety
labels are damaged or destroyed, they must be
replaced to ensure operator safety. See
Parts Drawing/Lists, pages 23-39 for label part
numbers.
The "Warning – Sharp Knife" label (A), shown in
Figure 1-1, is attached to the top front surface of the
applicator cabinet. This label reminds operators and
service personnel to keep fingers away from the
opening in the front of the applicator when applicator
air supply is on.
Important Safeguards
The "Warning – Sharp Knife" label, shown in
Figure 1-2, is attached to the blade guard on the
tape cut-off assembly inside the S-857 applicator.
When access cover is open, this label reminds
operator and service personnel to shut off air supply
and use caution when working near tape cut-off
knife.
Figure 1-2 – Knife Warning Label
Figure 1-1 – Knife Warning Label

4
Important Safeguards (Continued)
The "Safety Instructions" label, shown in
Figure 1-3, is attached to the left side of the
applicator next to the air regulator. This label
reminds operators and service personnel of the
recommended air pressure that the air regulator
should be adjusted to.
The "Tape Threading" label, shown in
Figure 1-4, is attached to the right side of the S-857
cabinet near the top front edge. This label provides
a convenient tape threading diagram More detailed
tape loading and threading information is provided in
the operation section of this manual.
Figure 1-3 – Air Pressure Label Figure 1-4 – Tape Threading Label

5
Specifications
4. Cycle Time:
1.2 seconds per cycle
The cycle time is sufficient to satisfy the majority
of applications. Flow controls (see page 17 – Air
Flow Controls) control the application rate and
return stroke rate of the air cylinder. While these
flow controls can be adjusted for increased
speed, this practice may result in higher
maintenance costs and shorten machine life.
1. Tape Specifications:
Tape – Most "Scotch" brand filament tapes.
Tape Width – 3/8 inch [9 mm], 1/2 inch [12 mm],
or 5/8 inch [15 mm].
Tape Roll Diameter – Up to 15 inches [380 mm]
maximum on a 3 inch [76.2 mm] diameter core.
Applied Tape Length – 4 1/2 inches [115 mm]
(nominal). Tape legs are 2 1/4 ±1/8 inches
[55 mm ± 3.2 mm].
2. Air Power Requirements:
55 to 60 PSIG [380 to 415 kPa] gauge pressure.
2.16 SCFM [3.65 m3/h 21°C, 101 kPa] at 50
cycles/min
5. Operating Conditions:
Use in dry, relatively clean environments at 40°
to 120°F [5° to 49°C] with clean, dry boxes.
Important – Machine should not be washed
down or subjected to conditions causing
moisture condensation on components.
6. MachineDimensions:
Length – 31 inches [790 mm] (includes 360
yard [330 m] tape roll)
Height – 29 inches [735 mm] (includes 360
yard [330 m] tape roll)
Width – 11 inches [280 mm]
Weight – Packaged 83 lb [37.7 kg]
Unpackaged 75 lb [34 kg]
3. Box Size Capacity:
Bottom or Top Taping Position
Height – 2 1/4 inches [60 mm] minimum to
unlimited maximum
Width – 3 inches [75 mm] minimum to
unlimited maximum
Depth – 2 1/4 inches [60 mm] minimum to
unlimited maximum
Note: Operator capability will determine
maximum height, width, and depth.
Smaller heights and widths are sometimes
possible and it is recommended that your
3M Representative be contacted for
testing of these applications.

6
Installation and Set-Up
Receiving and Handling
After the applicator has been unpacked, examine it
thoroughly for any damage that may have occurred
during transit. If damage is evident, file a damage
claim immediately with the transportation company
and also notify your 3M Representative.
Machine Set-Up
Read the installation instructions through completely
before performing the set-up procedure. Refer to
the back of this manual for literature on "Typical
Mounting Set-Up" for the S-857 Applicator.
Mounting – The S-857 can be set up in either of
three taping positions:
Bottom Taping Position – Shown in Figure 2-l.
For application of "L" clip tape seal to the bottom
corner of a box.
Top Taping Position – Shown in Figure 2-2. For
application of a tape seal to the top corner of a
box.
Side Taping Position – Shown in Figure 2-3. For
application of a tape seal to the end of a box.
Three mounting areas have been provided on the
S-857 main frame. A mounting bracket (with two
holes) and a single mounting hole on the left side
and two mounting holes located on the front of the
machine. It is suggested that the S-857 be mounted
securely at any two of these mounting areas.
Note: When mounting the unit, always align the
top surface of the nest parallel with the work
surface. When mounting the unit for side taping
align the nest perpendicular to the work surface.
It is suggested that a secondary height adjustment
be provided for head adjustments as referred to in
the top taping operation section.
Note: The air flow control unit must be
remounted in a vertical position when operating
the S-857 in the top or side taping position.All
additional brackets, fittings and air lines are to
be supplied by the customer.
Figure 2-1 – Mounting – Bottom Taping Position

7
Installation and Set-Up (Continued)
Figure 2-3 – Mounting Side Taping Position – Front View
Figure 2-2 – Mounting Top Taping Position – Left Side View

8
Installation and Set-Up
(Continued)
Air Regulator-Filter-Lubricator – The air control
unit is supplied with two mounting screws. Install the
unit on the main plate, left side, in the mounting
holes provided.
1. Refer to Figure 2-4 and locate the air control unit
(A) in a vertical position for proper operation.
Assemble and secure the two 8-32 x 1/2 lg.
screws and flat washers.
2. Refer to Figure 2-5 and push the air line (B) onto
the male elbow (C) on the right side of the air
lubricator as shown.
3. Unscrew the air lubricator bowl, Figure 2-5, and
fil with oil to 1/2 inch [12 mm] from top of bowl.
Do not overfill. Use U.S.P. heavy mineral oil or
SAE #5 or #10 non-detergent oil.
Screw bowl snugly back into place.
4. Connect main air supply line.
Note: The main air supply line and required
fittings are to be supplied by customer.
Turn On/Off valve on S-857 to "Off" position.
See Figure 2-4.
Connect main air supply line to main air supply
inlet on air regulator. See Figure 2-5.
Figure 2-4 – Installation – Air Control – Left Side View

9
Installation and Set-Up
(Continued)
Figure 2-5 – Air Control Unit – Set-Up
Tape Drum - Bracket Assembly
The tape drum bracket is supplied with two
#10-24 x 1/2 lg mounting screws. Assemble the
bracket to the machine and the tape drum to the
bracket.
1. Attach the tape drum bracket (E) to the rear of
the machine with two #10-24 x 1/2 lg soc hd
capscrews as shown in Figure 2-4.
2. Assemble the tape drum/backup plate (D) to the
bracket (E) and adjust tape drum/backup plate in
or out to obtain the 1-11/16 inch [43 mm]
clearance between backup plate and bracket as
shown in Figure 2-4. Secure this setting with the
1/2-13 jam nut (F).
Tape Loading and Threading
See "Operation", page 15.
5. The lubricator oil metering adjustment knob,
shown in Figure 2-5, has been preset open
two turns. If excessive oil becomes visible at
the exhaust mufflers, close adjustment knob
clockwise 1/4 turn or until one drop/60cycles is
visible in the sight glass, shown in Figure 2-5.
If lubricator does not use oil, open adjustment
knob counterclockwise 1/4 turn or until one
drop/60 machine cycles is visible.

10
Theory of Operation
Figure 3-1 – Pneumatic Schematic
Thissectioncontainsgeneral information about the
S-857,apneumaticschematic,detailedoperational
explanation and a pneumatic components list.
General Information
TheS-857isapneumaticallypowered machine
containingelevenpneumaticvalvesandsix pneumatic
cylinders. These components are all listed at the end
of this section with a brief description of their function.
Themachineconsistsoffourprimaryassemblies
listedbelow.
• Knife assembly – cuts the section of tape to be
applied.
• Buff assembly – applies the section of tape to the
boxcorner.
• Feedassembly–advancesthetapebetween
applications.
• Jaw assembly – retains the free end of the tape
betweenapplications.

11
Theory of Operation (Continued)
Operational Explanation
RESTPOSITION,AIROFF
When the machine is in rest position with the air off, a
spring-actuated air cylinder extends to hold up the
feed assembly. See Figure 3-2. This is necesssary
because the air cylinder is in the fully extended
position. Without the spring-actuated air cylinde,r the
weight of the feed assembly could cause the air
cylinder to retract and damage the section of tape
readyforapplication.
RESTPOSITION,AIR ON
When air is applied to the machine, it is routed
throughtheOn/OffcontrolvalveV-1,throughline 2,
throughsafetyvalve V-9,andintothemanifoldthrough
line 28. See Figure 3-1. The manifold then routes the
air to seven locations. Four of the routes from the
manifolddirectairtovalvesthatareclosed when the
machine is in the rest position. These "blocked" air
routesare:
• Throughline 3 tovalveV-2
• Throughline 25tovalveV-3
• Throughline 24tovalveV-4
• Throughline 18tovalveV-6
Theremaining three routes direct airto actuate theair
cylindersandpreparethe machine for the application
cycle.
• Air is directed through line 29 to retract the spring-
loadedsafety cylinder that retainsthe feed
mechanism.
• Air is directed through line 27 to the pilot valve
P-1. The air exits the pilot valve and is branched
to retract the buff and cut cylinders. The pilot valve
directs air through line 9, the buff cylinder retract
flowcontrolvalve,andline 21 to the rod end of the
buffcylinder to retractthe cylinder,andthrough
line 8 to the rod end of the cut cylinder and
retaracts it also.
• Air is also directed through line 7 to pilot valve
P-2. The air exits the pilot valve P-2 and is
branched to extend the feed and jaw cylinders. Air
travelsfromthe pilot valvethroughline14, valve V-
5, and line 26 to the head end of the jaw cylinder
and extends the cylinder. Air is also directed
throughline15,valveV-7,line19,thefeedcylinder
extendflowcontrolvalve,andline22tothehead-
endofthefeed cylinder and extends the feed
cylinder.
Figure 3-2 – Rest Position

12
Theory of Operation (Continued)
APPLICATIONCYCLE,CUT/BUFF SEQUENCE
When the machine is in the powered rest position and
a box is placed in the nest area, the box paddle
actuates valve V-2. This allows a pulse of air to flow
fromthe manifold throughvalveV-2, line 4,valve
V-8, and line 5 to the PAport of the pilot valve P-1.
This shifts the pilot valve P-1. Air is then directed to
the paddle cylinder, which holds the paddle to the
machinehousing,whichpreventstheadditional
actuationofpaddlevalveV-2 before theapplication
cycle is completed.
Air is then directed to the head end of the cut and buff
cylinders and causes both to extend at the same
time. At full extension, a section of tape is cut by the
knife assembly and immediately applied to the box by
thebuffroller assembly.
As the buff assembly reaches full extension, it
actuates valve V-3. This directs a pulse of air to the
PB port of the pilot valve P-1 causing it to shift and
direct air to the rod end of the cut and buff cylinders.
This causes the cut and buff cylinders to retract and
return the knife and buff assemblies back to the
achinerestposition.Shortly before the buffcylinder
fully retracts, it actuates valve V-4. This begins the
feedsequence.
Figure 3-3 – Cut/Buff Sequence

13
Theory of Operation (Continued)
APPLICATIONCYCLE,FEED SEQUENCE
Valve V-4 directs air to the PAport of the pilot valve P-
2 causing it to shift and direct air to the rod end of the
jawandfeedcylinders. Airtravelsfromthepilotvalve
P-2throughline17, the feed cylinder retract flow
valve,andline23to the rod end of the feed cylinder
and through line 16 to the rod end of the jaw cylinder.
As the cylinders retract, the jaws on the jaw assem-
bly open to receive the tape that the feed assembly is
advancing. Asthefeed assembly advances, the tape
pickuproller pivotsupwardoutof the pathof the feed
assembly. At the end of its stroke, the feed assem-
bly actuates valve V-6 which directs a pulse of air to
thePBport of the pilot valve P-2. This causes valve
P-2to shiftanddirectair through line 14, valve V-5,
and line 26 to the head end of the jaw cylinder. The
jaw cylinder extends and the tape holding haws close
toretainthe freeend of the tapeadvanced by the feed
assembly.
When the jaw cylinder is completely extended, the
jaws close and retain the free end of the tape and
valve V-7 is actuated. Valve V-7 directs air to the
head end of the free cylinder. This causes the feed
mechanism to move back to the machine rest
position. The machine is now ready for the next
cycle.
Figure 3-4 – Feed Sequence

14
Theory of Operation (Continued)
Components
RefertoFigure3-1forcomponent locations.
VALVES
V-1: The on/offcontrolvalve,actuatedbytheknobon
the top of the machine.
V-2 Paddle Valve: Abox placed in the paddle area
actuates V-2, which directs a pulse of air from the
manifold,throughvalveV-8, tothe PAport of pilot
valveP-1. ThisshiftsvalveP-1andactivatesthebuff
and cut cylinders beginning the application cycle.
V-3: This valveis actuated byan actuator on thebuff
cylinder slide assembly and directs air to the PB inlet
of valve P-1, thus causing it to shift and retract the
buffand cut cylinders.
V-4: This valveis actuated byan actuator on thebuff
cylinder slide assembly and routes air to the PAport
ofthepilot valve P-2. This causes valve P-2 to shift
and direct power to the feed and jaw cylinders to
beginthefeed sequence.
V-5: Actuated by the buff cylinder slide assembly at
the end of the retract stroke, V-5 directs air from the
pilotvalveV-2 tothe jaw cylinder.
V-6: Actuated by the feed cylinder slide assembly at
the end of the retract stroke, V-6 shifts the pilot valve
P-2 and causes extension of the jaw cylinder. This
causes the tape holding jaws to close on the free end
ofthe tape.
V-7: Valve V-7 is actuated by the actuator mounted
on the jaw cylinder rod. When the jaw cylinder fully
extends, valve V-7 actuates and directs air to the
head-endofthefeedcylinder, causing the feed
cylinder retract. This completes the feed cycle.
V-8: Actuated by the full extension of the feed
cylinderassembly,valveV-8 provides a pathforair
frompaddlevalve V-2 to pilot valve P-1. This setsup
the machine for the application cycle.
V-9: Safety Valve: V-9 removes power (air) to the
machinewhenthecoverisopened.
P-1 Pilot Valve: P-1 controls the buff/cut sequence.
P-2 Pilot Valve: P-2 controls the feed sequence.
CYLINDERS
Safety Cylinder: Aspring loaded cylinder that
retains the feed assembly when the machine is in the
restposition-power off.
Paddle Cylinder: A cylinder which is actuated at
the beginning of the application cycle. It holds the
boxpaddlebeyond the actuation point ofpaddlevalve
V-2, to preventadditionalactuationofthe paddle valve
beforetheapplicationcycle ends.
Buff Cylinder: The buffcylinder controlsthe buff
roller assembly the "L" clip of tape to the box corner.
Cut Cylinder: The cut cylinder controls the knife
assembly that cuts the section of tape applied by the
buffroller assembly.
Feed Cylinder: The feed cylinder controls the feed
assembly that advances the tape and insertts it into
theholdingjawsimmediatelyfollowingthebuff/cut
sequence.
Jaw Cylinder: The jaw cylinder controls the holding
jaws that retain the end of the tape between
applications.

15
Tape Loading and Threading – The tape drum assembly is set up for dispensing 3/8 inch [9 mm] or 1/2 inch
[12 mm] wide tape. For dispensing other tape widths refer to "Adjustments – Tape Width", page 17. A tape
threading diagram is located outside the applicator on the top of the nest for quick reference.
WARNING – Turn "Off" main air supply at on/off valve before threading tape. Failure to turn
air supply "Off" could result in severe personal injury or equipment damage.
For easy access to tape loading and threading, open
the cover located on the right side of the S-857.
Release the cover latch, shown in Figure 2-1, pull
outward on the upper part of the latch, unhook the
latch and pivot open the cover.
Operation
Refer to Figure 4-1 and thread the tape as follows:
1. Place the tape roll on the tape drum so the tape
is dispensed downward, adhesive side forward.
The tape roll must be fully against the drum
flange.
2. Pull approximately 12 inches [300 mm] of tape
from the roll and thread the tape under the
tension roller, adhesive side up.
Figure 4-1 – Tape Loading and Threading – Right Side View

16
Operation (Continued)
3. Bring the tape up over the take-up roller,
adhesive side up.
WARNING – Use care when working
near knife blade as blade is
extremely sharp. If care is not taken,
severe injury to personnel could result.
7. Turn “on” the main air supply at the on/off valve.
8. To clear the tape which has been tacked to the
nest, manually holding the paddle stop down
and push the box paddle in to cycle the unit.
The applicator is ready to operate.
WARNING – Be careful not to put
fingers in area of cut out opening in
nest. Severe injury to personnel could
result.
4. Thread the tape over the top wrap roller, around
the one way roller assembly, over the wrap
roller, adhesive side toward the nest, begin tape
down behind the tape holding roller and also the
tape pick-up roll.
Note: To simplify the tape threading at the
next reloading, replace with a new roll of
"Scotch" brand filament tape, and splice the
tape web together at the tension roller.
5. Pull out enough tape to tack it to the top of the
nest as shown.
6. Close the cover and secure the latch.
Note: Remove all work tools, etc. from inside
S-857 case before closing cover.
Operating Sequence
1. Move the box forward over the paddle stops,
depressing the box paddle and hold it firmly and
squarely against the nest vertical surface to
apply the tape.
2. The application only takes 1/4 second to apply
the tape, then the box can be removed from the
nest while the machine continues to complete
the cycle.

17
Adjustments
WARNING – Turn "Off" main air supply
at on/off valve and disconnect air
supply line before making any adjustments.
Failure to disconnect air supply line could
result in severe personal injury.
Tape Width
The tape drum is assembled at the factory for 3/8
inch [9 mm] or 1/2 inch [12 mm] wide tapes. For
5/8 inch [15 mm] tapes the retainers must be moved
to the secondary position on the tape drum. This is
done by removing the two screws and relocating the
retainer, shown in Figure 2-4, then replacing and
securing the screws.
Tape Web Alignment
The tape drum assembly controls tape web
alignment in the applicator. Adjust the tape drum
assembly so the tape web is dispensed, centered on
the buffing rollers.
Tape Drum Tension
The tape drum assembly provides a preset tape roll
tension to control over-travel. The tape drum
tension requires no further adjustment.
Tape Tension Roller
The tension roller assembly, shown in Figure 4-1,
provides a preset tension to the tape web. No
further adjustment is required. If the tension roller
assembly is replaced or comes out of adjustment,
make adjustment as follows to obtain tension to the
tape web: turn the lock nut, located behind the
tension roller assembly, counterclockwise to
increase tension, clockwise to decrease tension.
V-8 Valve Adjustment
There are two lines scribed on the actuator button of
the valve. Correct adjustment of valve places the
middle of these two lines at the edge of the actuator
button housing when feed assembly is at top of
travel (see Figure 5-1). Loosen valve adjustment
screws (2), slide valve up or down to obtain this
adjustment and tighten screws. Be sure feed
assembly is held at top of travel when making valve
adjustment.
Air Flow Controls
The flow controls for the tape feed air cylinder and
tape buff air cylinder are preset at the factory. The
controls are located on the top right hand corner of
the S-857. Should adjustment be necessary, turn
knob counterclockwise to increase cylinder speed
and clockwise to decrease cylinder speed. Factory
adjustment was set as shown in Figure 5-2. The
flow control, mounted on the jaw cylinder to control
speed, has been pre-set three turns open at the
factory.
Figure 5-1 – V-8 Valve Adjustment Figure 5-2 – Air Flow Controls – Top View