Neary 555 User manual

1
This book consists of two manuals:
The OPERATORS MANUAL which contains all the
information on operating and doing routine daily
maintenance on this equipment.
The ASSEMBLY and SERVICE MANUAL which is
used by the maintainence department to install the
equipment and to do all maintenance except routine
daily maintenance.
555
AUTO - INDEX
SPIN / RELIEF
REEL GRINDER

2
We are committed to:
Providing superior customer support, training, and
service.
Manufacturing the highest quality products at an
unequaled value.
Setting the industry standard by investing in
technological product innovation.
Manufacturing products specifically designed to
maintain original equipment manufacturers'
specifications.
Interacting with and supporting all original
equipment manufacturers.

3
555
AUTO - INDEX
SPIN / RELIEF
REEL GRINDER
Patent No. 5,321,912
6,010,394 & 6,290,581
OPERATORS
MANUAL
55021 (3-07)
WARNING
You must thoroughly read and understand this manual
before operating the equipment, paying particular
attention to the Warning & Safety instructions.

4
The Caution Symbol identifies special
instructions or procedures which, if not
strictly observed, could result in damage
to or destruction of equipment.
The Warning Symbol identifies
special instructions or procedures
which, if not correctly followed,
could result in personal injury.
Safety Awareness Symbols are inserted
into this manual to alert you to possible
Safety Hazards. Whenever you see these
symbols, follow their instructions.
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 locations.
Machine is for indoor use only. Keep work area
well lit.
5. KEEPALL VISITORSAWAY. 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
better and safer if used as specified in this
manual.
8. USE THE RIGHT TOOL. Don't force the grinder
or an attachment to do a job for which it was not
designed.
9. WEAR PROPER APPAREL. Wear no loose
clothing, gloves, neckties, or jewelry which may
get caught in moving parts. Nonslip footwear is
recommended. Wear protective hair covering to
contain long hair.
10. ALWAYS USE SAFETY GLASSES.
11. SECURE YOUR WORK. Make certain that the
cutting unit is securely fastened with the clamps
provided before operating.
12. DON'T OVERREACH. Keep proper footing and
balance at all times.
13.MAINTAIN GRINDER WITH CARE. Follow
instructions in Service Manual for lubrication and
preventive maintenance.
14.DISCONNECT POWER BEFORE SERVICING,
or when changing the grinding wheel.
15.REDUCE THE RISK OF UNINTENTIONAL
STARTING. Make sure all switches are 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 function should be properly repaired or
replaced.
18.KNOW YOUR EQUIPMENT. Read this manual
carefully. Learn its application and limitations as
well as specific potential hazards.
19.KEEPALL SAFETY DECALS CLEAN AND
LEGIBLE. If safety decals become damaged or
illegible for any reason, replace immediately.
Refer to replacement parts illustrations in Service
Manual for the proper location and part numbers
of safety decals.
20.DO NOT OPERATE THE GRINDER WHEN
UNDER THE INFLUENCE OF DRUGS,
ALCOHOL, OR MEDICATION.
SAFETY INSTRUCTIONS

5
SAFETY INSTRUCTIONS
IMPROPER USE OF GRINDING WHEEL MAY CAUSE
BREAKAGE AND SERIOUS INJURY.
Grinding is a safe operation if the few basic rules listed below are followed. These rules are based on material
contained in theANSI 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 follow these rules.
DO
1. DO always HANDLE AND STORE
wheels in a careful manner.
2. DO VISUALLY INSPECT all wheels before
mounting for possible damage.
3. DO CHECK MACHINE SPEED against the
established maximum safe operating 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
operating speed, with guard in place, for at least
one minute before grinding.
9. DO always WEAR SAFETY GLASSES or some
type of eye protection when grinding.
DON'T
1. DON'T usea cracked wheel or one that HAS BEEN
DROPPED or has become damaged.
2. DON'T FORCE a wheel onto the machine OR
ALTER thesize of themountinghole--if wheel won't
fit the machine, get one that will.
3. DON'T ever EXCEED MAXIMUM OPERATING
SPEED established for the wheel.
4. DON'T use mounting flanges on which the bearing
surfaces ARE NOT CLEAN, FLAT AND FREE OF
BURRS.
5. DON'T TIGHTEN themounting nut EXCESSIVELY.
6. DON'T grind on the SIDE OF THE WHEEL (see
Safety Code B7.2 for exception).
7. DON'T start the machine until 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
noticeably or work gets hot.
AVOID INHALATION OF DUST generated by grinding and cutting operations. Exposure
to dust may cause respiratory ailments. Use approved NIOSH or MSHA respirators,
safety glasses or face shields, and protective clothing. Provide adequate ventilation to
eliminate dust, or to maintain dust level below the Threshold Limit Value for nuisance
dust as classified by OSHA.

6
TABLE OF CONTENTS
This machine is intended for grinding the reel of reel type mower units ONLY.
Any use other than this may cause personal injury and void the warranty.
To assure the quality and safety of your machine and to maintain the warranty,
you MUST use original equipment manufactures replacement parts and have
any repair work done by a qualified professional.
ALL operators of this equipment must be thoroughly trained BEFORE operating
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. Machine is for
indoor use only. Do not use a power washer to clean the machine.
TABLE OF CONTENTS
Safety Instructions ....................................................................................................................Page 4 - 7
Daily Maintenance.....................................................................................................................Page 6
Getting to Know Your Grinder ...................................................................................................Page 8 - 14
Operating Instructions...............................................................................................................Page 15 - 27
Reel Setup Chart.......................................................................................................................Page 28
DAILY MAINTENANCE BY THE OPERATOR
On a daily basis, clean the machine by wiping it off.
On a daily basis, remove all grinding grit from the grinding shaft, traverse shafts, and tooling
bar area.
On a daily basis, inspect the machine for loose fasteners or components.
Contact your company's Maintenance Department if damaged or defective parts are found.
DO NOT USE COMPRESSED AIR TO CLEAN
GRINDING DUST FROM GRINDER.
The grinder is equipped with a low voltage relay which
is factory preset at 100 VAC. If the power supply line
does not deliver 100 VAC power under load, the relay
will open and trip out the starter. If this occurs, your
power supply line is inadequate and must be correct
before proceeding further with the grinder.
Low Voltage Relay

7
SAFETY INSTRUCTIONS
SafetyAwareness Symbols are inserted in this
manualto alert youtopossible Safety Hazards.
Whenever you see these symbols, heed their
instructions.
The Warning Symbol identifies
special instructions or procedures
which, if not correctly followed,
could result in personal injury.
PLEASE TAKE SPECIAL NOTE OF THE FOLLOWING WARNING DECALS
LOCATED ON THE FRONT AND SIDES OF THE GRINDER.
The Caution Symbol identifies special
instructions or procedures which , if not
strictlyobserved, couldresultin damage
to, or destruction of equipment.
Symbolfor Read operators
manual, wear safety
glasses and disconnect
power before servicing. Symbol to keep visitors a safe
distance away from the grinder.
Symbol identifying a panel, cover,
or area as having live electrical
components within.
Symbol for sharp object which will
cause serious injury.
Symbol for minimum safe rated
RPM of grinding wheel.
Symbol for hearing
protection required when
operating this machine.
Symbol that operator and
people in close proximity
must wear respirators or
have an adequate
ventilation system.
Symbol to keep exposed gasoline
or flammables away from the
grinder because it operates with a
large amount of sparks.

8
SPECIFICATIONS
Traversing Switches Solid state, non-contacting proximity switches.
Overall Width 71" [181 cm]
Overall Height 69" [175 cm] with door closed, 87" [221 cm] with door open
Overall Depth 42" [107 cm]without workstation, 79" [201 cm] with optional workstation
Weight 1450 lbs. [658 kg] 1650 lbs shipping weight [748 kg]
Base Construction Precision heavy duty reinforced welded steel base
Carriage Rails Precision Ground, Hardened Steel - 1.000 Dia. [25.4 mm]
Grind Head Motor 1HPAC Motor, 3450 RPM
Spin Motor .20 HP Fan Cooled Variable Speed DC Motor
Sound Level More than 75 Dba, Less than 95 Dba
Auto Traverse Belt driven with easy to engage clamp system
Control System *Safety grind motor and spin drive door interrupt switches
*Reversible Spin drive for variable speed Spin or variable torque relief functions
*Variable speed traverse control.
Options: *Manual Winch and Boom Kit, Electric Winch and Boom Kit or Workstation.
GETTING TO KNOW YOUR GRINDER

9
GETTING TO KNOW YOUR GRINDER (Continued)
RPM
Adjusts the speed of reel rotation when you
have the grind selector switch set at variable
speed spin.
GUARD DOORS MUST BE SHUT FOR SPIN
DRIVE TO OPERATE.
SPIN SPEED POTENTIOMETER DIAL
SPIN DRIVE ROTATION SWITCH
Forward / Off / Reverse
This switch reverses the spin drive motor.
Toggle in middle is off position and stops
rotation.
NOTE : Because the spin drive motor can
mount on either side of the reel rotation
direction will vary.
Powers all control panel systems.
Pulls in the main magnetic starter.
SYSTEM START SWITCH
CONTROL PANEL COMPONENT IDENTIFICATION
Review the following control panel component descriptions before proceeding with the instructions
Variable speed spin
Switch must be up to perform
spin grinding operations.
Variable Torque Relief
Switch must be down to perform
relief grinding operations.
GRIND SELECTOR SWITCH

10
GETTING TO KNOW YOUR GRINDER (Continued)
TRAVERSE MOTOR SWITCH
Turns the traverse drive motor ON/OFF.
TRAVERSE SPEED POTENTIOMETER
DIAL - FT / MIN
Adjusts the speed of the left & right
movement of the Grinding wheel.
PUSH-PULL EMERGENCY STOP BUTTON
Push to cut all power to the control panel functions.
Stops all motors, including grinding motor, traverse
motor, spin motor, etc. To restore power, pull up on
button and press the Start button.
GRINDING WHEEL MOTOR SWITCH
On / Off
Turn the Grinding Wheel Motor on and off.
Guard doors must be shut for Grinding
Motor to operate.
GUARD DOORS MUST BE SHUT FOR GRIND
MOTOR TO OPERATE.
RELIEF TORQUE POTENTIOMETER DIAL
Adjusts the Spin Drive Motor torque (the torque holding the
reel blade to the relief finger) when Grind Selector Switch is
set at variable Torque Relief.
GUARD DORS MUST BE SHUT FOR SPIN DRIVE TO
OPERATE.

11
FRONT AND REAR MOWER MOUNTING
The mowing unit should be placed in the machine
with the rear roller on the table and front roller held
in the front tooling. The front tooling can be moved
side to side along the tooling bar so they can be
positioned as far apart as necessary to accommo-
date all reel widths. To move the tooling, loosen the
knob located at the front of the tooling base and
slide tooling along tooling bar. The tooling should be
located as close to the frame as possible leaving the
maximum room to use the position gage (the gage
will be discussed in the alignment section). The
horizontal position is attained by using the hand
wheel located at the front of the tooling can be used
for small adjustments and alignment. If you are
using the all-position brackets, the vertical and
horizontal position can be adjusted by loosening the
knobs located on the side of the tooling and moving
to a new set of pins. Verify that the reel is positioned
properly for the spin wheel and relief wheel by
checking the travel limits, both wheels will need to
have clearance to come off the reel on both sides.
Checking during setup will eliminate the need for
major adjustments and alignments when going from
spin grinding to relief grinding. When the mower is
in place lock it into position by tightening all knobs.
Lift the rear roller onto the angled bracket and clamp
the roller firmly by squeezing the clamp handle.
REEL POSITION
The reel should be positioned so that it is at a one
o’clock or 30° angle position in reference to the
grinding wheel. If the all-position brackets are used
try to position the unit so that the bottom of the reel
is between 1.50-2.00 [38-51MM] off the table. With
the roller mount style tooling try to maintain the one
o’clock position and check for clearance between the
reel table and grinding wheel. Verify that the proper
relief angle can be achieved with this setting and
make any adjustments if necessary.
Fig. 1
Fig. 2
GETTING TO KNOW YOUR GRINDER (Continued)

12
TRAVERSE ENGAGEMENT AND RELEASE
The belt that drives the relief and spin hubs left and
right can be engaged and released by flipping the
clamp located on the bottom of the grinding head
assemblies. Moving the lever to the left will engage
the belt and moving it to the right will disengage the
belt. The tip can be adjusted if necessary to
increase or decrease the tension on the belt. See
adjustments in back of manual for more details.
The tip is adjusted at the factory to allow
the belt to slip if the hub comes in con-
tact with something. Caution should be
used when adjusting the tip as to not
over tighten which would not allow the
belt to slip and could lead to damage to
the machine or reel.
Fig. 3
TRAVERSE PROXIMITY SENSORS
The Traverse Proximity Sensors are used to change
the traversing direction of the grinding head
assemblies and are mounted in the Proximity
Brackets located on the traverse shafts. The
brackets can easily be slid along the shafts for quick
and easy travel limit adjustments. When switching
from the spin mode to the relief mode, the brackets
will need to be lifted off the shafts and snapped back
in the proper position. There is a light on the sensor
that lights up when the switch is activated.
SPIN/RELIEF GRINDING HEAD
The 555 is equipped with separate spin and relief
grinding wheels. When the setup is done properly
there will be only one set up for both cycles with
minimal adjustments between cycles. The spin
wheel is located on the right side of the machine and
is wider than the relief wheel. Move the wheel that is
not being used as far to the side as possible to give
the maximum amount of room to setup and operate
the machine. The proximity sensors must be moved
so that the wheel in use is between the two sensors.
Make sure that the wheel that is not in use is not
engaged to the drive belt.
Fig. 4
GETTING TO KNOW YOUR GRINDER (Continued)
TRAVERSE BELT
ENGAGEMENT
LEVER
CLAMP TIP
TRAVERSE BELT

13
Fig. 5
GETTING TO KNOW YOUR GRINDER (Continued)
INDEX FINGERADJUSTMENTS
The Finger system includes two fingers. See FIG. 5. The
Fixed Relief Finger is equivalent to the Relief Fingers on
other relief grinders. When relief grinding the Movable
IndexStopFinger movesfromthe Relief FingerSide (back
side) of the reel blade when traversing from right to left to
the grinding wheel side (front side) of the reel blade when
traversing from left to right. This feature allows the fully
Automatic Relief function. When performing relief
grinding operations it is important to have the Index Stop
Finger adjusted properly.
To make this adjustment you have to first turn the Index
Lock Knob counter clockwise to unlock the adjustable
Index Stop Knob. See FIG. 5. To move the stop position of
the Index Finger back, you want to rotate the Adjustable
Index Lever counter clockwise. If you need to move the
index finger stop position up you want to rotate the
Adjustable Index Lever clockwise. When the Index
Finger is in proper position rotate the Index Lock Knob
clockwise to lock the Adjustable Index Lever.
The Index Stop Pin is height adjustable. It should be
adjusted to catch the reel blade and still leave enough
clearance to the reel spider after the relief is ground to the
reel spider after the relief is ground to the depth required.
NOTE: After adjusting there should be 1/32" [0.8 mm]
clearance between the index finger and the reel blade
when you push on the index finger. This is so that the
high point of the Relief Finger is acting as the guide
during the relief grind cycle. The Index Stop Finger acts
as a guide onto the tapered ramp of the Relief Finger.
RELIEFANGLEADJUSTMENT
Rotating the finger system around the gringing wheel will
change the relief angle. By loosening the large ratchet
handle the finger system can be rotated to achieve the
factory angles, or whatever angle you select. See Fig. 5.
Byrotatingthe finger forward thereliefangle will decrease
and rotating it rearward the relief angle will increase.
Retighten the ratchet handle when adjustment is correct.
RELIEF WHEEL DIAMETER ADJUSTMENT
To adjust for wheel wear. the finger system needs to be
movedto the wheel. Adjust by looseningthesmall ratchet
handle and then sliding the finger system to the grinding
wheel. See Fig. 5. The gap between the fixed finger and
the grinding wheel will be between .06" [1.5 mm] and .18"
[4.6 mm] depending on the amount of exsisting relief on
the reel. Retighten the ratchet handle when adjustment
is correct. RELIEF ANGLE
ADJUSTMENT
HANDLE
WHEEL DIAMETER
ADJUSTMENT
HANDLE
INDEX FINGER
STOP POSI-
TION KNOB
FIXED FINGER
MOVABLE
INDEXING
FINGER
INDEX STOP
PIN
INDEX FINGER
STOP LOCK
KNOB

14
ALIGNMENT GAGE
A properly ground reel should be cylindrical. All taper
must be ground out of the reel. To ensure the reel will
be ground correctly it MUST be aligned precisely prior
to grinding. The digital alignment gage is used for
accurate reel setup. The gage is used for setting the
horizontal alignment and checking for taper within
thousands of an inch. The digital gage allows you to
measure one end of the reel by extending the slide rail
until you make contact with the center shaft of the reel.
See FIG. 6A. By measuring at the far left and the far
right on the center shaft you can adjust the horizontal
alignmentusing the fronttoolingadjustment knobs until
the alignment is within .005 inches [.13mm].
When this is completed, you can then reset the gage
to zero on the center shaft, retract the gage slide and
measure the outer surface of a reel blade. By
comparing the readings on the left side of the reel to
the right side of the reel, you can determine exactly
how much taper you have in the reel. Compensating
for taper will be explained later in the grinding
proceedure.
NOTE: Gage can be set for both inch and metric
readout.
FIG. 6A
GETTING TO KNOW YOUR GRINDER (Continued)

15
FIG. 6C
FIG. 6B
PREPARE MOWING UNIT FOR SHARPENING
When preparing a cutting unit for sharpening, follow
the cutting unit manufacturers recommendations for
proper maintenance. It is recommended that the reel
tobe sharpenedisthoroughly cleaned.Removewheels
and bed bar, if possible, from the reel. All bedknives
must be ground when reels are sharpened. Inspect,
adjust and/or replace any worn or damaged bearings.
Make sure reel bearings are adjusted properly so the
reel turns easily by hand.
Becausethis grinder mountsthe reel usingthereel rear
roller, and front roller if applicable, the bearings in the
rollersmust bein goodrepairwithno freeplay.Thefront
and rear rollers must be properly aligned parallel
to the reel prior to grinding.
LIFTING REEL INTO POSITION
The 5550911 grinder does not come standard with a lift
device. If the facility does not have a lift, the winch and
boom kit or Workstation is recommended.
WINCH & BOOM KIT
The Winch & Boom kit mounts to the back right side of
the cabinet. When using the Winch & Boom position the
cutting unit behind the machine and secure the spreader
bar to the cutting unit. Use the winch to lift the unit and
swing into the working area of the machine. (Refer to
manual in kit for further instructions.) See FIG. 6B
WORKSTATION
The Workstation is a portable platform that can be used
to raise the real up into the grinder. The reel can be
rolled onto the platform with the front of the reel facing
the front of the grinder. The rear roller clamp must be
removed to allow the reel to be moved into place from
the rear. The Workstation uses a 12V rechargable
system to power the platform and is mounted on 4
casters for possible use away from the grinder.
See FIG. 6C
REELS WITH EXCESS TENSION ON THE
BEARINGS WILL BE EXTREMELY
DIFFICULT TO SPIN GRIND AND COULD
CAUSE DAMAGE TO THE REELOR THE SPIN
DRIVE MECHANISM ON YOUR GRINDER. NO
MORE THAN 25. IN. LBS MAXIMUM TORQUE
LOAD TO ROTATE THE REEL IS ALLOWED
OR DAMAGE TO THE SPIN DRIVE COULD
OCCUR.
OPERATING INSTRUCTIONS

16
INSTALL REEL
Move the reel to the approximate position having the rear
roller on the tabletop, and front roller on the front roller
Mounts.
Position front roller mounts as far out as possible to the
ends of the front roller, and center on the machine (See
Fig 7B). This must be done to get an accurate reading
duringthealignment process. (Alignmentwillbediscussed
later). Check for clearance for both the spin and relief
wheels. It is very frustrating to get to the relief process
and have to readjust everything. NOTE: On large reels it
may be necessary to offset the reel slighly from center to
allowthe spin drive to be mounted on the appropriateside
of the cutting unit.
Place the rear roller onto the rear roller clamp.
(See Fig 7C).
If using the all-position brackets, set the vertical height of
the clamps so that the bottom of the reel is 1.5-2.0 inches
[38-51mm] above the table. It is also recommended to
mount the support arm with as little extension from the all
position bracket as possible leaving just enough clear-
ance for mounting the reel in the “V” of the support arm.
Position the reel in and out by adjusting the front
handwheels. The reel should be positioned so that the
reel shaft is located at a 1 o’clock or 30° position to the
grinding wheel. See figure 7A.
Make certain the reel is parallel to the front edge of the
table. Lock down front and rear clamps and make sure all
knobs are tight.
OPERATING INSTRUCTIONS (Continued)
MAKE SURE THE GRINDING WHEEL IS LOW
ENOUGH TO CLEAR THE REEL. YOU CAN
LOWER THE GRINDING WHEEL BY
TURNING THE HANDWHEELS
COUNTERCLOCKWISE.
FIRMLY TIGHTEN ALL LOCKING KNOBS
BEFORE GRINDING. ANY LOOSENESS WILL
ADVERSELY AFFECT GRINDING QUALITY.
FIG. 7A
30° angle or
FIG. 7B
FIG. 7C

17
OPERATING INSTRUCTIONS (Continued)
ALIGN THE REEL
NOTE: When measuring to the reel center shaft always
make sure you are contacting an area free of dirt and
grass.
NOTE: The horizontal extension bracket is vertically
adjustable so the digital gage can be positioned to avoid
reel frame members, etc. The mounting of the vertical
slide to the horizontal weldment has two additional
mounting holes so the vertical slide can be tipped
forward or back to avoid reel frame members, etc. See
FIG. 8.
Loosen the horizontal locking knobs on the tooling, so
that it can be adjusted in the horizontal plane. See FIG. 9.
First, measure the left side of the reel as far to the left as
possible with the digital alignment gages, making sure
the tip of the gage is centered on the reel center shaft.
Set the gage to zero, then measure the right side at the
same distance from reel centerline as the left side. Do
not rotate the reel shaft except for a minimum amount to
clear the gage when taking measurements. Adjust the
horizontal handwheel. Repeat until alignment is within
.005" [.13 mm].
FIG. 9
FIG. 8
CHECKING FOR TAPER
First, measure the left side of the reel as far to the left as
possible with the digital alignment gage, making sure the
tip of the gage is centered on the reel center shaft. Set
the gage to zero, then measure to the edge of one blade.
Remember or write this number down. Move to opposite
side and do the same thing. Compare the two numbers;
the difference is the amount of taper in the radius of the
wheel.
NOTE: TO OBTAIN A CORRECT TAPER READING TO
BE USED WITH THE TAPER CHART LATER, THE
READING MUST BE TAKEN AS CLOSE TO THE ENDS
OF THE REEL AS POSSIBLE GIVING THE MAXIMUM
DISTANCE BETWEEN READINGS.
To remove this taper, the side of the reel that is larger will
need to be infeed heavier to remove this extra material.
(See following pages for more information)
Remove the gage and store it. FIG. 10

18
OPERATING INSTRUCTIONS (Continued)
ALIGNMENT OF GRINDING SHAFT TO REEL
To align the grinding shaft to the reel bring the shaft up
so that the spin wheel is about ¼ inch [6 mm] from the
reel blades. Move the spin wheel to one side of the reel
and raise the grinding shaft until the wheel just touches
the blade. Move the wheel to the other side of the reel
and bring the shaft up until the wheel just touches. Re-
checkends andmakeminor adjustmentsuntil thewheel
touches the same on both ends of the reel. The grind
shaft is now aligned vertically to the reels outer
diameter. Now zero the gages located on the vertical
adjustment housing. Check for high spots in the reel
by moving the wheel the length of the reel while
spinning the reel. If there are high spots lower the shaft
equally on both ends and zero out the gages again.
SETTING THE TRAVERSE LIMITS
Move the grinding wheel until it has cleared the reel
(if clearance to the frame allows). When the grinding
wheel is in position, move the Traverse Travel Limit
switch in until the light on the proximity switch lights.
Move the wheel to the opposite end, clearing the reel,
and set the proximity switch. Engage the traverse belt
(if not already) and turn the traverse switch on. Allow
the wheel to traverse from end to end to verify the
switches properly stop the grinding wheel and that the
grinding wheel travels fully off the reel at each end.
Note: If the reel will hit the frame, then adjust so the
grinding wheel does not come fully off the reel.
IF THE REEL FRAME EXTENDS BELOW
(CLOSER TO GRINDING WHEEL) THAN
THE REEL ITSELF, MAKE SURE THE
STOP IS SET SO THAT THE GRINDING
WHEEL WILL NOT RUN INTO THE
FRAME WHILE GRINDING.

19
OPERATING INSTRUCTIONS (Continued)
ATTACHING THE VARIABLE SPEED SPIN DRIVE
UNIT TO THE REEL
The spin drive unit attaches to the end of the reel shaft
or a drive system component. Consult the cutting unit
manufacturer for proper spin drive placement and
attachment. Determine which side to mount the spin
drive. This will generally be the same drive system
component used for backlapping. See FIG. 11.
Attach the spin drive unit onto the appropriate side.
When spin grinding, the reel should turn in the same
direction as the grinding wheel. See FIG. 12.
Before positioning the spin unit let us familiarize
ourselves with the available adjustments and coupler/
drive assemblies. See FIG. 13.
FIG. 11
FIG.12
Knob A—
Allows the spin unit to be loosened and moved in
and out.
Knob B-
Allows the spin unit to be loosened and moved up
and down.
Knob C –
Allows the spin assembly to be loosened from the
tooling bar and moved side-to-side.
When positioning the spin unit it may be necessary
to complete several of the above adjustments to
properly align the spin unit to the reel.
FIG.13

20
The following procedures will make setting up the spin drive unit
easier.
1.
2.
3.
4.
5.
OPERATING INSTRUCTIONS (Continued)
The coupler/drive assembly includes:
RUBBER SLEEVE COUPLER: This is placed in the
corresponding flange coupler already mounted in the spin
drive shaft. See FIG. 14.
DRIVE COUPLER ADAPTER ASSEMBLY: This is
mounted to the rubber coupler.
Note: If the Drive Coupler Adapter is removed, there is a
short square drive shaft attached to the Adapter Sleeve.
This can be used with a socket if there is limited space.
ADAPTER SLEEVE: Connects the rubber coupler to the
square drive adapter.
SQUAREDRIVEADAPTER:Thisisinsertedintothedrive
coupler adapter and should be able to be moved
approximately 2" [51 mm]. It will be necessary to move
this when attaching reel to spin drive unit. It is then
inserted into any 1/2" [12.7 mm] square drive socket. This
square shaft has a groove machined into it on the oppo-
site end of the snap ring. This groove is there to advise
that you have reached the maximum extension of the
square drive shaft. If you cannot connect the reel without
extending past this groove, then the spin unit must be
repositioned on the tooling bar (knob C). FIG. 14
DO NOT EXTEND SQUARE SHAFT PAST
GROOVE, INSTEAD REPOSITION SPIN UNIT.
Move spin drive unit close to the reel.Align the shaft on the spin drive
with the nut on reel by completing the necessary adjustments
discussed on the previous page.
Now slide the spin drive unit approximately 7" [18 cm] from the reel
drive coupling point and securely fasten to the tooling bar tightening
the locking knob. (Knob C)
Place the proper 1/2" [12.7 mm] square drive socket or adapter on the
reel drive nut and then insert the square drive shaft into the socket.
Place the adapter sleeve over the drive shaft and insert the drive cou-
pler adapter assembly into it. Finally place the rubber coupler onto the
drive
coupler adapter. See FIG. 11.
By holding the square drive shaft firmly into position with your left
hand you will be able to move the other components to the right and
insert the rubber coupler into the flange on the spin drive unit. When
this is done tighten the T-Knob on the adapter sleeve to hold all parts
in place.
Finally readjust the spin drive unit if it is not in alignment.
NOTE: It is not necessary to
have perfect alignment but it
must be close enough so that
the coupler remains engaged
and that excess torque is not
applied to the reel.
NOTE: The1/2" [12.7mm] squaredrivesocket thatis placed onthe reelwhenspin grindingis NOT includedwith the
grinder. You must purchase this from the appropriate local supplier of tools. Some mowing units do not have a hex
to use for driving with a socket. Several adapters are available from the grinder manufacturer. Additionally, you will
have to make custom adapters for some mowing units.