Neary 555 SRI User manual

- ORIGINAL INSTRUCTIONS -
555
AUTO - INDEX
SPIN / RELIEF
REEL MOWER GRINDER
Patent No. 5,321,912
6,010,394 & 6,290,581
6,685,544 & 6,699,103
SERVICE
MANUAL
55013 (3-17)
You must thoroughly read and understand all manuals before operang the equipment,
paying parcular aenon to the Warning & Safety instrucons.

2
- ORIGINAL INSTRUCTIONS -
IMPORTANT SAFETY MESSAGE
As manufacturers of sharpening equipment, we want to conrm to you, our customers, our concern for
safety. We also want to remind you about the simple, basic, and common sense rules of safety when using
this equipment. Failure to follow these rules can result in severe injury or death to operators or bystanders.
It is essenal that everyone involved in the assembly, operaon, transport, maintenance, and storage of this
equipment be aware, concerned, prudent, and properly trained in safety. Always use proper shielding and
personal protecve equipment as specied by the manufacturer.
Our current producon machines include, as standard equipment, guards or shields for the grinding wheel,
safety signs, and operator's and service manuals. Never bypass or operate the machine with any of the
guards or safety devices removed or without the proper personal safety equipment.
Read and fully understand all the safety pracces discussed in this manual and the Operator's Manual. All
safety rules must be understood and followed by anyone who works with reel grinders.
Before operang this grinder, an operator must read and understand all of the informaon in the
Operator's Manual and understand all of the safety signs aached to the product. A person who has not read
or understood the Operator's Manual and safety signs is not qualied to operate the unit. Accidents oen
occur on machines that are used by someone who has not read the Operator's Manual and is not familiar
with the equipment. If you do not have an Operator's Manual or current producon safety signs, contact the
manufacturer or your dealer immediately.
The equipment is designed for one-man operaon. Never operate the equipement with anyone near, or
in contact with, any part of the grinder. Be sure no one else, including bystanders, is near you when you
operate this product.
Following these simple, basic safety rules, as well as others:
• Find and understand all safety signs in the Operator's Manual and on the equipment. This will help
minimize the possibility of accidents and increase your producvity in using this product.
• Be careful and make sure that everyone who operates the grinder knows and understands that it is a very
powerful piece of machinery, and if used improperly, serious injury or death may result.
• The nal responsibility for safety rests with the operator of this machine.
This symbol is used throughout this manual to call aenon to the safety
procedures.
The word DANGER indicates an immediate hazardous situaon, which if not
avoided, will result in death or serious injury.
The word WARNING indicates a potenal hazardous situaon, which if not
avoided, could result in death or serious injury.
The word CAUTION preceded with a safety alert symbol indicates a potenal
hazardous situaon which, if not avoided, may result in minor or moderate injury.
Throughout this manual, the following safety symbols will be used to indicate the degree of certain hazards.

3
- ORIGINAL INSTRUCTIONS -
TABLE OF CONTENTS
Safety Message......................................................................................................... 2
Safety Instrucons.................................................................................................... 3 -6
Service Data and Adjustments ................................................................................. 7 -21
Trouble Shoong ...................................................................................................... 22 -39
Parts Diagram ........................................................................................................... 40 - 71
Wiring Diagram ........................................................................................................ 72 - 73
Wiring Schemac...................................................................................................... 74
This machine is designed for sharpening reel type mower blades ONLY.
Any use other than this may cause personal injury and will void the warranty.
To assure the quality and safety of your machine and to maintain the
warranty, you MUST use original equipment manufacturer's replacement
parts and have any repair work done by a qualied professional.
ALL operators of this equipment must be thoroughly trained BEFORE
operang the equipment.
Do not use compressed air to clean grinding dust from the machine. This dust
can cause personal injury as well as damage to the grinder.
Read the Operator's Manual before operang this equipment. Keep this manual handy for ready
reference. Require all operators to read this manual carefully and to become acquainted with all
adjustments and operang procedures before aempng to operate the equipment. Replacement
manuals can be obtained from your selling dealer or the manufacturer.
The equipment you have purchased has been carefully engineered and manufactured to provide
dependable and sasfactory use. Like all mechanical products, it will require cleaning and upkeep.
Lubricate and clean the unit as specied in the Operator's Manual. Please observe all safety
informaon in this manual, the Operator's Manual and the safety decals on the equipment.
INSTALLATION, DAILY MAINTENANCE, AND BASIC UPKEEP IS DISCUSSED IN THE
OPERATOR'S MANUAL. THIS MANUAL SHOULD BE USED IN CONJUNCTION WITH
THE SERVICE MANUAL FOR PERFORMING SERVICE ON THIS EQUIPMENT.

4
- ORIGINAL INSTRUCTIONS -
SAFETY INSTRUCTIONS
13. MAINTAIN GRINDER WITH CARE. Follow
instrucons in Service Manual for lubricaon and
prevenve maintenance.
14. DISCONNECT POWER BEFORE SERVICING, or
when changing the grinding wheel.
15. REDUCE THE RISK OF UNINTENTIONAL STARTING.
Make sure the switch is OFF before plugging in the
Grinder.
16. USE RECOMMENDED ACCESSORIES. Consult the
manual for recommended accessories. Using improper
accessories may cause risk of personal injury.
17. CHECK DAMAGED PARTS. A guard or other part
that is damaged or will not perform its intended
funcon should be properly repaired or replaced.
18. NEVER LEAVE GRINDER RUNNING UNATTENDED.
TURN POWER OFF. Do not leave grinder unl it
comes to a complete stop.
19. KNOW YOUR EQUIPMENT. Read this manual
carefully. Learn its applicaon and limitaons as well
as specic potenal hazards.
20. KEEP ALL SAFETY DECALS CLEAN AND LEGIBLE.
If safety decals become damaged or illegible for any
reason, replace immediately. Refer to replacement
parts illustraons in Service Manual for the proper
locaon and part numbers of safety decals.
21. DO NOT OPERATE GRINDER WHEN UNDER
THE INFLUENCE OF DRUGS, ALCOHOL, OR
MEDICATION.
1. KEEP GUARDS IN PLACE and in working order.
2. REMOVE WRENCHES AND OTHER TOOLS.
3. KEEP WORK AREA CLEAN.
4. DON'T USE IN DANGEROUS ENVIRONMENT.
Don't use grinder in damp or wet locaons. Machine
is for indoor use only. Keep work area well it.
5. KEEP ALL VISITORS AWAY. All visitors should be
kept a safe distance from work area.
6. MAKE WORK AREA CHILD-PROOF with padlocks or
master switches.
7. DON'T FORCE THE GRINDER. It will do the job
beer and safer if used as specied in this manual.
8. USE THE RIGHT TOOL. Don't force the Grinder
or an aachment to do a job for which it was not
designed.
9. WEAR PROPER APPAREL. Wear no loose clothing,
gloves, neckes, or jewelry which may get caught in
moving parts. Nonslip footwear is recommended.
Wear protecve hair covering to contain long hair.
Wear respirator or lter mask where appropriate.
Wear protecve gloves.
10. ALWAYS USE SAFETY GLASSES.
11. SECURE YOUR WORK. Make certain that the
cung unit is securely fastened with the clamps
provided before operang.
12. DON'T OVERREACH. Keep proper foong and
balance at all mes.
TO AVOID INJURY, READ AND UNDERSTAND THE
SAFETY ITEMS LISTED BELOW. IF YOU DO NOT
UNDERSTAND ANY PART OF THIS MANUAL AND
NEED ASSISTANCE, CONTACT YOUR LOCAL DEALER.

5
- ORIGINAL INSTRUCTIONS -
IMPROPER USE OF GRINDING WHEEL MAY
CAUSE BREAKAGE AND SERIOUS INJURY.
DO
1. DO always HANDLE AND STORE wheels in a
CAREFUL manner.
2. DO VISUALLY INSPECT all wheels before
mounng for possible damage.
3. DO CHECK MACHINE SPEED against the
established maximum safe operang speed
marked on wheel.
4. DO CHECK MOUNTING FLANGES for equal
and correct diameter.
5. DO USE MOUNTING BLOTTERS when supplied
with wheels.
6. DO be sure WORK REST is properly adjusted.
7. DO always USE A SAFETY GUARD COVERING at
least one-half of the grinding wheel.
8. DO allow NEWLY MOUNTED WHEELS to run
at operang speed, with guard in place, for at
least one minute before grinding.
9. DO always WEAR SAFETY GLASSES or some
type of eye protecon when grinding.
DON'T
1. DON'T use a cracked wheel or one that HAS BEEN
DROPPED or has become damaged.
2. DON'T FORCE a wheel onto the machine OR
ALTER the size of the mounng hole - if wheel won't
t the machine, get one that will.
3. DON'T ever EXCEED MAXIMUM OPERATING
SPEED established for the wheel.
4. DON'T use mounng anges on which the bearing
surfaces ARE NOT CLEAN, FLAT AND FREE OF
BURRS.
5. DON'T TIGHTEN the mounng nut excessively.
6. DON'T grind on the SIDE OF THE WHEEL (see
Safety Code B7.2 for excepon).
7. DON'T start the machine unl the WHEEL GUARD
IS IN PLACE.
8. DON'T JAM work into the wheel.
9. DON'T STAND DIRECTLY IN FRONT of a grinding
wheel whenever a grinder is started.
10. DON'T FORCE GRINDING so that motor slows
noceably or work gets hot.
AVOID INHALATION OF DUST generated by grinding and cung operaons. Exposure to dust may cause
respiratory ailments. Use approved NIOSH or MSHA respirators, safety glasses or face shields, and protecve
clothing. Provide adequate venlaon to eliminate dust, or to maintain dust level below the Threshold Limit
Value for nuisance dust as classied by OSHA.
GRINDING IS A SAFE OPERATION IF THE FEW BASIC RULES LISTED BELOW
ARE FOLLOWED. THESE RULES ARE BASED ON MATERIAL CONTAINED IN THE
ANSI B7.1 SAFETY CODE FOR "USE, CARE AND PROTECTION OF ABRASIVE
WHEELS". FOR YOUR SAFETY, WE SUGGEST YOU BENEFIT FROM THE
EXPERIENCE OF OTHERS AND CAREFULLY FOLLOW THESE RULES.
SAFETY INSTRUCTIONS

6
- ORIGINAL INSTRUCTIONS -
IMPORTANT GROUNDING INSTRUCTIONS
If electrical tesng is required, always verify the machine has a proper ground before performing any tests.
In case of a malfuncon or breakdown, grounding reduces the risk of electrical shock by providing a path of
least resistance for electrical current.
This Grinder has an electrical cord with an equipment grounding conductor and a grounding plug. The plug
must be plugged into a matching outlet that is properly installed and grounded according to all local or other
appropriate electrical codes and ordinances.
Before plugging in the Grinder, make sure it will be connected to a supply circuit protected by a properly-sized
circuit breaker or fuse. SEE SERIAL NUMBER PLATE FOR FULL LOAD AMP RATING OF YOUR MACHINE.
Never modify the plug provided with the machine--if it won't t the outlet, have a proper outlet and circuit
installed by a qualied electrician.
ALWAYS PROVIDE A PROPER ELECTRICAL GROUND FOR YOUR MACHINE. AN IMPROPER
CONNECTION CAN CAUSE A DANGEROUS ELECTRICAL SHOCK. IF YOU ARE UNSURE OF THE
PROPER ELECTRICAL GROUNDING PROCEDURE, CONTACT A QUALIFIED ELECTRICIAN.
UNPLUG THE EQUIPMENT PRIOR TO DOING ANY SERVICE ON THIS EQUIPMENT. FAILURE TO
REMOVE POWER TO THIS EQUIPMENT BEFORE SERVICING MAY RESULT IN INJURY OR DEATH.
IF POWER IS REQUIRED FOR TESTING OR TROUBLESHOOTING, THIS SHOULD BE PERFORMED BY A
TRAINED PROFESSIONAL OR LICENSED ELECTRICIAN.
REVIEW THE SYMBOLS AND DESCRIPTIONS ON PAGES 10 AND 11 OF THE OPERATOR'S MANUAL.
UNDERSTAND ALL SYMBOLS BEFORE OPERATING OR SERVICING THIS EQUIPMENT.
This is the Electrical Hazard Symbol. It indicates that
DANGEROUS HIGH VOLTAGES ARE PRESENT inside the
enclosure of this product. TO REDUCE THE RISK OF
FIRE OR ELECTRIC SHOCK, do not aempt to open the
enclosure or gain access to areas where you are not
instructed to do so. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL ONLY.
SAFETY INSTRUCTIONS

7
- ORIGINAL INSTRUCTIONS -
SERVICE DATA
SKILL AND TRAINING REQUIRED FOR SERVICING
This Service Manual is designed for technicians who have the necessary mechanical and electrical knowledge and skills
to reliably test and repair the 555 Spin/Relief Grinder. For those without the background, service can be arranged
through your local distributor.
This secon presumes that you are already familiar with the normal operaon of the grinder. If not, you should read
the Operator's Manual or do the servicing in conjuncon with someone who is familiar with its operaon.
Persons without the necessary knowledge and skills should not remove any panels or shields, or aempt any internal
troubleshoong, adjustments, or parts replacement.
If you have quesons not answered in this manual, please contact your distributor.
TORQUE REQUIREMENTS
Throughout this manual we refer to torque requirements
as "rmly ghten" or the like. For more specic torque
values, refer to the informaon below.
Bolts Going Into a Nut, or Into a Thread Hole in Steel.
Refer to the table at the right.
Bolts Going Into a Thread Hole In Aluminum
Use the Grade 2 values in the table at the right.
Socket-Head Screws Going Into a Nut or Steel
Use the Grade 8 values in the table at the right.
Machine Screws
No. 6 screws: 11 in.- lbs (0.125kg - m)
No. 8 screws: 20 in. - lbs (0.23 kg - m)
No. 10 screws: 32 in. - lbs (0.37 kg - m)
GRADE 2 GRADE 5 GRADE 8
SMOOTH 3 MARKS 6 MARKS
HEAD on HEAD on HEAD
1/4 In. 6 -lbs 9 -lbs 13 -lbs
thread (0.8 kg-m) (1.25 kg-m) (1.8 kg-m)
5/16 In. 11 -lbs 18 -lbs 28 -lbs
thread (1.5 kg-m) (2.5 kg-m) (3.9 kg-m)
3/8 In. 19 -lbs 31 -lbs 46 -lbs
thread (2.6 kg-m) (4.3 kg-m) (6.4 kg-m)
7/16 In. 30 -lbs 50 -lbs 75 -lbs
thread (4.1 kg-m) (6.9 kg-m) (10.4 kg-m)
1/2 In. 45 -lbs 75 -lbs 115 -lbs
thread (6.2 kg-m) (10.4 kg-m) (15.9 kg-m)

8
- ORIGINAL INSTRUCTIONS -
DAILY MAINTENANCE IS SPECIFIED ON PAGE
7 OF THE OPERATOR'S MANUAL AND IS TO BE
PERFORMED BY THE OPERATOR.
LISTED BELOW ARE PERIODIC MAINTENANCE
ITEMS TO BE PERFORMED BY YOUR COMPANY'S
MAINTENANCE DEPARTMENT:
1. Clean the dust tray located at the lower front
of the machine monthly using a vacuum or by
removing it. Pull the tray out unl the back of the
tray is even with the front of the frame and vacuum
it out. To remove, connue to pull straight out unl
the tray is free.
USE CAUTION WHEN PULLING THE TRAY OUT
AS THERE IS NO MECHANICAL STOP. WHEN
REMOVING TRAY, PULL STRAIGHT OUT AND
SUPPORT THE TRAY TO PREVENT DUMPING.
2. Inspect the Poly-V belt on the grinding motor
for cracking and make any necessary adjustments
every three months.
3. Wipe o and lubricate, with never-seize, the
horizontal adjustment shas located on the tooling
every six months.
4. Wipe o and lubricate, with never-seize, the
vercal adjustment shas every six months. Run
the arms up and down to coat the working areas of
the sha.
5. Inspect the traverse cog belt for cracking and
defects every three months. Remove any grit or
dust that may aect the funcon of the belt. Adjust
tension if necessary per procedures called out in
the adjustment secon. See page 16.
6. Clean and lubricate the grinding sha and
traverse shas every 2 to 4 weeks. Follow the
procedure on the next page.
7. Lubricate grinding sha bearing with one shot
of grease once every 2 years. See FIG 2.
DO NOT GREASE GRINDING SHAFT
BEARINGS FOR THE FIRST 2 YEARS.
THEY ARE GREASED AT THE FACTORY.
GREASING MAY CAUSE THE BEARINGS
TO OVERHEAT AND FAIL PREMATURELY.
PERIODIC MAINTENANCE
FIG. 2
FIG. 1
DUST TRAY
VERTICAL ADJUSTMENT
SHAFTS LOCATED INSIDE
HOUSING - ACCESS
THROUGH SIDE PANELS
POLY V-BELT LOCATED
BEHIND PANEL
HORIZONTAL
ADJUSTMENT
SHAFT

9
- ORIGINAL INSTRUCTIONS -
LUBRICATION
LUBRICATION OF GRINDING SHAFT AND LINEAR BEARINGS
STEP 1 – Thoroughly clean all three shas.
STEP 2 – Flood spray all three shas with CRC 3-36 unl the lubricant is dripping o the shas. Do not use
a teon-based lubricant. Then run the grinding head assemblies back and forth through their full range
of travel. This will remove the dust and deposits from inside the wheel anges. Repeat if necessary unl
lubricaon is clear of deposits. Clean keyways located on the grinding sha with so brush.
STEP 3 – With a clean rag, wipe o the excess amount of lubricant from the shas. Run the grinding
assemblies through their range of travel and wipe the shas aer each traverse. Repeat unl the shas are
dry to the feel. This completes the lubricaon process.
IMPORTANT:
If the unit will be shut down for an extended period of me, more than four weeks, then the shas and other
appropriate parts of the unit should be ooded with lubricant and that lubricant le in place unl the unit is
brought back into service. When the unit is brought back into service the full lubricaon procedure as stated
above should be repeated.
FIG. 3
TRAVERSE
SHAFTS
GRINDING SHAFT
COG BELT
GRINDING SHAFT
BEARING
POLY-V BELT
GRINDING SHAFT
BEARING

10
- ORIGINAL INSTRUCTIONS -
MAINTENANCE
REPLACEMENT OF GRINDING WHEEL
To replace the wheel, rst open the le side hinged
panel and remove the lower le side cover panel.
Then, lower the le side of the grinding sha and
raise the right side. Next, loosen the two bolts that
hold the bearing bracket on the relief hub so that the
bearings pivot away from the wheel and hub (toward
the front of the machine). See FIG 5. Press the index
nger down and the wheel and hub assembly should
move freely to the right.
To remove the le side bearing: rst, loosen the
setscrews on the bearing collar, then remove the four
screws that hold the bearing to the le arm.
Slide the grinding wheel hub assembly(s) o the
sha, taking note of what side the nut is on. Use the
spanner wrench to remove and replace the grinding
wheel(s).
NOTE: THE RELIEF HUB HAS A LEFT HAND
THREAD FOR THE NUT. THE SPIN HUB HAS A RIGHT
HAND THREAD.
Place the grinding wheel hub assembly(s) back on
the grinding sha. Verify that the spin hub is located
between the spin drive yoke assembly and the relief
hub is to the right of the relief drive assembly before
lowering the grinding sha.
MAKE SURE THE WHEEL(S) IS PLACED
ON THE SHAFT WITH THE SAME ORIENTATION AS
SHOWN. FAILURE TO INSTALL CORRECTLY WILL
CAUSE THE WHEEL NUT TO LOOSEN. (THE NUT ON
THE RELIEF HUB SHOULD BE TO THE RIGHT & THE
NUT ON THE SPIN HUB SHOULD BE TO THE LEFT.)
Reinstall the bearing on the le side of the grinding
sha making sure to t the pilot on the bearing into
arm. Tighten the four mounng screws, and then
ghten the setscrews to the sha. Reinstall the le
side cover panel. Move bearing support bracket back
into place. See relief hub bearing adjustment to set
the bracket correctly.
FIG. 4
FIG. 5
BEARING
RELIEF FLANGE
RELIEF WHEEL
RELIEF NUT
SPIN NUT
SPIN WHEEL
SPIN FLANGE
Loosen bolts and p bracket
back. Press in the indexing
nger and the wheel should
slide freely to the right.

11
- ORIGINAL INSTRUCTIONS -
MAINTENANCE
GRINDING MOTOR BELT REPLACEMENT/
ALIGNMENT
To replace or inspect the grinding motor belt,
remove the right side cover panel. To remove the
belt, pull down on the tensioner pulley.
For the belt to funcon properly the grinding
sha pulley and the grinding motor pulley must
be in line with the tensioner pulley. To adjust the
pulley posion, loosen the setscrews on the pulley.
Locate the belt in the center of the idler pulley.
Measure from the arm to the edge of the belt at
the idler pulley. Adjust the two other pulleys unl
the same measurement is achieved and ghten the
pulley setscrews.
Reinstall the right side cover panel, then run
the grind motor to assure that the belt is not
misaligned. The belt will walk o the pulley if the
system is not aligned properly.
TRAVERSE BELT REPLACEMENT
To replace the traverse belt, remove the le side
cover panel, then loosen the nuts on the le side
pulley that are used to tension the belt. Remove
the right side cover panel. Loosen the screws
holding the traverse motor and lt the boom of
the motor out, releasing any remaining tension on
the belt. On the le side remove the nut from the
boom belt tensioning screw. This will allow the
belt to be removed.
Place a new belt on the le pulley, making sure it
is seated properly in the cogged teeth, and replace
the locknut. Feed the new belt through the slot on
the right arm and place on motor pulley. Use the
motor as a lever to apply tension to the new belt.
Tighten motor screws and adjust the tension in
the belt as specied in the BELT TENSION secon.
Adjust the height of the motor pulley if necessary
so the belt is located in the center of the traverse
belt clamp.
Reinstall the le side and right side cover panels,
then test the traverse motor.
FIG. 7
FIG. 6

12
- ORIGINAL INSTRUCTIONS -
MAINTENANCE
FIG. 8
TRAVERSE SHAFT/LINEAR BEARING REPLACEMENT
To replace the traverse shas or the linear bearings in
the Spin or Relief assembly, rst remove the le side
cover panel.
REMOVE GRINDING SHAFT:
Next you will need to remove the grinding sha.
First move the relief hub away from the relief hub
assembly (see Replacement of Grinding wheel secon
for details). Then remove the grinding motor belt
and pulley (see Grinding Motor Belt Replacement).
Now loosen the setscrews on the right side bearing
to allow the grinding sha to slide out of the bearing.
Next remove the le side grinding sha bearing. The
grinding sha is heavy, so take appropriate measures
when liing or removing. To remove the grinding
sha, li up on the le end and slide the sha out of
the right side bearing. Set the sha on the oor or
bench out of the way.
THE GRINDING SHAFT WEIGHS 75LBS [34
Kg]. USE APPROPRIATE LIFTING DEVICES TO AVOID
INJURY.
REMOVE THE TRAVERSE BELT:
(See Traverse Belt Replacement secon)
REMOVING THE TRAVERSE SHAFTS:
To remove the traverse shas, use the vercal
adjusters to lower both grinding sha support arms
unl they are in their lowest posion. Now remove
the le grindng sha support arm. To remove the le
arm, rst remove the bolt at the rear of the machine.
(It may be necessary to clamp onto the sha that the
bolt is screwed into so that it does not spin.) Aer
removing the bolt, pull the arm o the rear sha.
Now move the arm toward the rear of the machine
to disengage the front of the arm from the vercal
adjuster. Next, pull the arm away from the grinder
and o the traverse shas. (Note: the shas may
come out of the right side arm, so support the shas.)
Slide the Spin and Relief Grinding Head Assemblies o
the traverse shas.
Replace the shas if necessary.
REPLACING THE TRAVERSE BEARING:
To replace the traverse bearings, press the bearings
out of the bearing housing. Slide in the new bearings
and secure in place with the seals. (Two bearings go
in the front and 1 bearing the rear of the housing).
TO REASSEMBLE:
Clean the 2 spherical bearings in the right arm and
place the traverse sha into the bearings. (The
shas should slide into the bearings. There is
very minimal clearance so the shas need to be
precisely aligned for the shas to slide into the
bearings.) Next slide the grinding head assemblies
(spin rst then relief) onto the traverse shas. Now,
clean the bearing in the le arm. Then align the
bearings in the le arm to the two traverse shas.
The shas should slide into the bearings. Reinstall
the le arm into the vercal adjuster housing and
onto the rear support sha. Reinstall the rear pivot
bolt and ghten. Connue to install the traverse
belt, grinding sha, and grinding motor belt.
See the secons on Traverse Belt Replacement,
Replacement of Grinding Wheel, Grinding Motor
Belt Replacement, Traverse Belt Tension, and Relief
Grinding Head Bearing Adjustments for addonal
details.
2. REMOVE REAR PIVOT BOLT
1. REMOVE
GRINDING SHAFT
AND TRAVERSE
BELT
3. LIFT ARM OFF
REAR PIVOT SHAFT
AND SLIDE ARM
BACK THEN OUT.

13
- ORIGINAL INSTRUCTIONS -
MAINTENANCE
CLEANING AND MAINTENANCE GUIDELINES FOR POLYCARBONATE
WINDOWS
CLEANING INSTRUCTIONS
DO NOT USE GASOLINE!
Adherence to regular and proper cleaning procedures is recommended to preserve appearance and
performance.
Washing to Minimize Scratching
Wash polycarbonate windows with a mild dish washing liquid detergent and lukewarm water, using a clean
so sponge or a so cloth. Rinse well with clean water. Dry thoroughly with a moist cellulose sponge to
prevent water spots. Do not scrub or use brushes on these windows. Also, do not use butyl cellosolve in
direct sunlight.
Fresh paint splashes and grease can be removed easily before drying by rubbing lightly with a good grade
of VM&P naphtha or isopropyl alcohol. Aerward, a warm nal wash should be made, using a mild dish
washing liquid detergent soluon and ending with a thorough rinsing with clean water.
Minimizing Hairline Scratches
Scratches and minor abrasions can be minimized by using a mild automobile polish. Three such products
that tend to polish and ll scratches are Johnson paste Wax, Novus Plasc Polish #1 and #2, and Mirror Glaze
plasc polish (M.G. M10). It is suggested that a test be made on a corner of the polycarbonate window with
the product selected following the polish manufacturer's instrucons.
Some Important "DON'TS"
• DO NOT use abrasive or highly alkaline cleaners on the polycarbonate windows.
• Never scrape polycarbonate windows with squeegees, razor blades or other sharp instruments.
• Benzene, gasoline, acetone or carbon tetrachloride should NEVER be used on polycarbonate windows.
• DO NOT clean polycarbonate windows in hot sun or at elevated temperatures.
Gra Removal
• Butyl cellosolve, (for removal of paints, marking pen inks, lipsck, etc.)
• The use of masking tape, adhesive tape or lint removal tools works well for liing o old weathered
paints.
• To remove labels, sckers, etc., the use of kerosene, VM&P naphtha or petroleum spirits is generally
eecve. When the solvent will not penetrate scker material, apply heat (hair dryer) to soen the
adhesive and promote removal.
GASOLINE SHOULD NOT BE USED!

14
- ORIGINAL INSTRUCTIONS -
MAINTENANCE
DIGITAL GAUGE
Important Do not mark the scale unit with an electric engraver
or scratch the scale.
Always use an SR44 baery (silver oxide cell)
If the scale will not be used for more than three months,
remove the baery and store it properly. Otherwise leakage
from the baery may damage the unit.
Descripon of Parts
1. Beam 2. Main Scale
3. Baery compartment 4. Output Connecon
5. Display 6. ON/OFF Power
7. ZERO/ABS switch 8. Origin Switch
9. Inch/mm Switch 10. Tapped hole
11. Slider
Baery Installaon and Origin Seng
Set the origin of the scale aer installing the baery.
Otherwise, the error sign("E" at the least signicant digit) may
appear, resulng in incorrect measurements.
1)To install the baery, remove the compartment lid and
install the SR44 baery with its posive side facing up. Aer
the baery is installed, set the origin.
2)To set the origin, move the slider to an area you wish to set
as your origin. Turn the power on. Hold the ORIGIN switch
down for more than one second. The "0.00" display appears,
indicang Origin seng is complete. The origin will be
retained even if the power is turned o.
Incremental (INC) & Absolute (ABS) mode
The LCD will display measurements from the origin when
turned on (ABS mode). To set the origin, see above. The
display can be set to zero at any desired posion by pressing
the ZERO/ABS switch. INC indicator will appear in the display
(INC mode), perming measurements from this zero point.
To return to the ABS mode, hold the ZERO/ABS buon for
more than 2 seconds.
Error Symptoms & Remedies
ERRC and display ickering: Occurs when the scale surface
is stained. Clean the scale surface and coat a thin lm of low
viscosity oil to keep out moisture.
E in the least signicant digit: This occurs when the slider is
moved too quickly, but it does not aect the measurement. If
it stays on when the slider stops, the scale surface is probably
stained. If this is the case, take remedies as for ERRC.
B indicaon: Baery voltage is low. Replace the baery as
soon as possible.
Cleaning
Clean gage with CRC 3-36 Cleaning and Lubricaon Oil. Wipe
o excess aer cleaning. If CRC 3-36 is not available, use
Denatured Alcohol to clean, then apply light oil and wipe o
excess.

15
- ORIGINAL INSTRUCTIONS -
ADJUSTMENTS
PROXIMITY SWITCH
For the proximity switch to perform properly
and reverse the direcon of the grinding head
assembly, the sensor end of the prox must face
toward the head assembly that is in use, and must
be mounted such that it is located past the edge of
the prox holder.
NOTE: The light on the proximity switch acvates
when metal is approximately 3/16" [4.6 mm] from
front of proximity switch.
VERTICAL INFEED SHAFT DRAG
If the grinding sha tends to walk during grinding,
the drag on the vercal adjusters needs to be
increased. To increase the drag in the vercal
adjustment shas, ghten the setscrew on the
back of the vercal adjustment housing.
FIG. 9
FIG. 10
VERTICAL INFEED SHAFT
DRAG SETSCREW LOCATED ON
BACK OF EACH TOWER.

16
- ORIGINAL INSTRUCTIONS -
ADJUSTMENTS
TRAVERSE BELT TENSION
To adjust the tension on the traverse belt, ghten
the screws and nuts located to the le side of the
traverse belt behind the le side cover panel to
a minimum of 1.75" [44 mm]. The traverse belt
should be level when adjusng the belt tension.
TRAVERSE CLAMP FORCE
If the traverse clamp is slipping during regular
operaon, it may become necessary to adjust the
clamp p locaon. To adjust the clamp p, loosen
the jam nut and rotate the clamp p. The clamp p
should be adjusted to the dimension specied in
FIG 12. To measure, move the traverse belt out of
the way. Measure the clamped distance from the
clamp p to the clamping block (shoe). To secure
the new posion, jam the nut against the clamp,
being careful not to move the clamp p.
If there is not enough adjustment in the clamp p,
the bracket that supports the clamp can also be
adjusted. The bracket is sloed; to adjust, loosen
the two screws that hold the bracket in place and
slide the bracket forward or back. Then, reghten
the screws. Make sure they are ght or the bracket
will move during clamping. Check the p distance
and make any necessary adjustments.
THE TIP HAS BEEN FACTORY SET SO THAT IT
WILL SLIP IF THE GRINDING HEAD ASSEMBLY
COMES IN CONTACT WITH SOMETHING.
ADJUSTING THE TIP WILL AFFECT THE SLIP
LOAD AND COULD DAMAGE THE CLAMP TIP,
BELT, OR TRAVERSE DRIVE SYSTEM.
DO NOT OVERTIGHTEN.
OVERTIGHTENING COULD
DAMAGE THE BELT OR TRAVERSE
DRIVE SYSTEM.
FIG. 12
FIG. 11
.10" [2.5 mm]

17
- ORIGINAL INSTRUCTIONS -
ADJUSTMENTS
FIG. 13
FIG. 14
REAR DOOR SWITCH
FRONT DOOR SWITCH
(INSIDE DOOR LEFT UPPER LEFT SIDE)
FIG. 15
SPIN GRINDING HEAD WEAR PADS
The bronze wear pads used to move the spin wheel
will wear and may need to be adjusted or replaced.
When pad wears to within a 1/16" [1.5 mm] of the
screws, the pad will need to be ipped or replaced.
The holes in the pads are oset slightly. This allows the
pads to be ipped if neccessary to accomplish the best
t. When installing new pads, ip or rotate the pads
unl Gap 2 is as small as possible without the pads
pinching the wheel.
On the spin grinding head assembly, the distance from
the pad to the wheel can be adjusted in and out by
loosening the screws located on the sides of the yokes.
Gap 1 should be adjusted to about 1/16" [1.5 mm].
See FIG. 13.
SAFETY SWITCH ALIGNMENT/REPLACEMENT
The safety switch located on the front and rear guard
door must line up properly or the grinder will not
funcon.
The front and rear door switches must be within 1/4"
[6 mm] and the targets on the switches must line up in
order for the switch to funcon properly. See FIG. 14
and 15.
The switches are aached to the guarding using a
"Torx" style tamper resistant screws. A tool for this
type of screw is required to make this adjustment.
.25" [6MM]
MAXIMUM
DISTANCE
.25" [6MM] MAXIMUM
DISTANCE

18
- ORIGINAL INSTRUCTIONS -
RELIEF GRINDING HEAD BEARING ADJUSTMENTS
It may be necessary to adjust the guide bearings on the
relief head. To adjust the posion of the support bearings,
POSITION THE GRINDING HEAD AT THE FAR LEFT POSITION
and loosen the two posioning bolts located on the side of
the support assembly. Press on the support assembly unl
the top support bearing is touching the grinding wheel hub.
Hold the support in place with the bearing touching the hub
and ghten the two posioning bolts. Check to see that
the bearing is touching or has minimal clearance to the hub
through the full range of le to right travel.
NOTE: EXCESSIVE PRELOAD OF THE BEARING
ASSEMBLIES ON THE HUB CAN CAUSE THE
BEARINGS TO WEAR QUICKER AND COULD
CAUSE THEM TO FAIL PREMATURELY.
BRACKET
POSITIONING
BOLTS
TOP SUPPORT BEARING ASSEMBLY
ADJUSTMENTS
FIG. 16

19
- ORIGINAL INSTRUCTIONS -
CONTROL BOARD POTENTIOMETER ADJUSTMENTS
POTENTIOMETER ADJUSTMENTS TRAVERSE DRIVE CONTROL (TDC)
Min. Speed--Factory set at full (CCW) 8:30. Do not change this seng.
(Right Traverse) Forward Torque--Factory set at full (CW) 4:30. Do not change this seng.
(Le Traverse) Reverse Torque--Factory set at full (CW) 4:30. Do not change this seng.
IR COMP--Factory set to 9:00. IR COMP is current (I) resistance (R) compensaon (COMP). IR COMP adjusts
the output voltage of the drive which balances load to motor RPM. Regulaon of a traverse motor may be
improved by slight adjustment of the IR COMP pot clockwise from its factory-set posion. Overcompensaon
causes the motor to oscillate or to increase speed when fully loaded. If you reach such a point, turn the IR
COMP pot counterclockwise unl the symptoms disappear.
Max. Speed--Set at 3:30 for maximum voltage of 90 Volts DC to the traverse motor. When voltage is above 90
volts DC, the traverse motor will start to pulsate and not run smoothly.
(Right Traverse) Forward Acceleraon--Factory set at full (CCW) 8:30. Do not change this seng.
(Le Traverse) Reverse Acceleraon--Factory set at full (CCW) 8:30. Do not change this seng.
(DB) Dead Band is the potenometer seng for the 50 or 60 Hz cycle control. Factory set to 9:00, works for
both 50 and 60 Hz. Do not change this seng.
Calibrang the DWELL TIME rotary DIP switch adjusts the amount of me the process remains in the stop
posion aer a limit switch is actuated. The DWELL TIME range is adjustable from 0-4 seconds. A DIP switch
seng of 0 sets the DWELL TIME to 0 seconds, while a seng of 9 sets the DWELL TIME to 4.5 seconds.
Dwell me is preset to #4 seng for a 2 second dwell me when reversing at each end of stroke. A seng of
6, sets the dwell me at 3 seconds, etc.
Diagnosc LED's indicate the funcon that is currently being performed:
POWER indicates that AC power is being applied to the control.
FORWARD indicates that the process is running in the forward direcon (traversing le).
REVERSE indicates that the process is running in the reverse direcon (traversing right).
PROX 1 FWD LIMIT lights when the forward limit switch is actuated (le prox.).
PROX 2 REV LIMIT lights when the reverse limit switch is actuated (right prox.).
DWELL lights when the process remains stopped aer a proximity switch is actuated.
FIG. 17
Potenometer Clock
Orientaon

20
- ORIGINAL INSTRUCTIONS -
CONTROL BOARD POTENTIOMETER ADJUSTMENTS
SPIN DRIVE CONTROL BOARD (SDC)
The Spin Drive Control Board has four potenometers, two switches and one dial as shown on FIG. 17. These
potenometers,switches and dial have been set at the factory to the posions shown on FIG. 17.
In the Relief Grinding Mode--
The Torque Shut O Mode Selector allows you to turn ON or OFF the Torque Shut O feature. When switch
1 is set to ON, the board will decrease the spin motor torque once the shut me is achieved aer leaving the
right proximity sensor. The amount of me it takes before the torque is decreased is set with the Torque Shut
O Delay dial. The spin motor torque will be increased to the higher value once the right proximity switch is
acvated again.
If the Torque Shut O Mode Selector is in the OFF posion, the torque will remain constant during relief
grinding. This should be set to OFF.
Torque Shut O Delay Dial is used to set the duraon of me before the torque is decreased aer leaving
the right proximity sensor during relief grinding. If the dial is turned clockwise (higher number), the higher
torque value will stay on for a longer period of me.
The Relief Speed (RSP) and the Relief Torque Pot (RTP) interact with each other. The (RSP) is located on the
spin board as a remote speed preset at 12:00 (20 Volts DC). See FIG. 17. The (RTP) is located on the control
panel and is for relief torque adjustment.
Relief Speed Pot (SPEED) when rotated clockwise will increase spin drive speed (the speed at which the reel
indexes to the next blade). This speed should never be above the 3:00 seng.
Relief Torque Pot (TORQ) is used to vary the reel to nger holding torque for relief grinding. The
recommended starng point is 30 in/lbs of torque seng. Never adjust the (RTP) potenometer dial past the
red line marking. Seng the reel to nger torque too high could cause the spin motor system to not operate
smoothly.
Relief Idle Torque Pot (ITP) is used to vary the reel-to-nger holding torque once the shut me is achieved
aer leaving the right proximity sensor if the Torque Shut O Selector is set to ON.
FIG. 18
SPIN TORQUE POT
(TORQ) 2:00
IR COMP
POT
9:00
IDLE TORQUE
POT (ITP)
10:00
RELIEF SPEED
POT (SPEED) 12:00
SWITCH 1
SET TO OFF
DELAY SET
TO 1
Potenometer Clock
Orientaon