AMMCO 700 User manual

1601 J. P. Hennessy Drive, LaVergne, TN USA 37086-3565 615/641-7533 800/688-6359 Manual Part No.: 927588 16
HENNESSY INDUSTRIES INC. Manufacturer of AMMCO®, COATS®and BADA®Automotive Service Equipment and Tools. Revision: 06/01
Installation Instructions
Operating Instructions
Safety Instructions
Maintenance Instructions
READ these instructions before placing unit in
service. KEEP these and other materials delivered
with the unit in a binder near the machine for
ease of reference by supervisors and operators.
700/705/710
Vehicle Mounted
Brake Lathe &
Rotor Driving Unit
®

ii • AMMCO 700/705/710 Brake Lathes
Brake Lathes

AMMCO 700/705/710 Brake Lathes • iii
Table of Contents
Safety Notices and Decals . . . . . . . . . . . . .iv
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
Cautions and Dangers . . . . . . . . . . . . . . . . . . . .iv
Owner’s Responsibility . . . . . . . . . . . . . . . .v
Definitions of Hazard Levels . . . . . . . . . . . .v
Important Safety Instructions . . . . . . . . . .vi
Before You Begin
Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Components
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . .2
Model 700 Vehicle Mounted Brake Lathe . . . . . .2
Model 710 Specifications . . . . . . . . . . . . . . . . . .2
Brake Lathe Operation . . . . . . . . . . . . . . . . .3
Reconditioning Disc Brake Rotors . . . . . . . . . . . .3
Depth-Of-Cut Micrometer Dials . . . . . . . . . . . . . .3
Vehicle Preparation . . . . . . . . . . . . . . . . . . . . . . .3
Lathe Mounting Procedures . . . . . . . . . . . . . . . .4
Use of Mounting Hardware . . . . . . . . . . . . . . . . .5
Installation With The Vehicle’s Caliper Bolts . . . . .6
Installation With Mounting Bolts
Supplied in Mounting Hardware . . . . . . . . . . . . .7
Set-Up and Machining . . . . . . . . . . . . . . . . . .8 - 9
Restoring Vehicle . . . . . . . . . . . . . . . . . . . . . . . .10
Maintenance and Service
Oiling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Gib Adjustment . . . . . . . . . . . . . . . . . . . . . .10 - 11
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Care of Mounting Hardware . . . . . . . . . . . . . . . .11
Installation Of Hardware Storage Rack . . .11
Components
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . .12
Model 705 Rotor Driving Unit . . . . . . . . . . . . . .12
Model 710 Specifications . . . . . . . . . . . . . . . . . .12
Electrical Wiring Requirements . . . . . . . . .13
Thermal Overload Circuit Breaker . . . . . . . . . . . .13
Assembly Instructions . . . . . . . . . . . . . . . .13
Mounting of Lug Adapter . . . . . . . . . . . . .14
Rotor Drive Unit Operation . . . . . . . .15 - 16
Maintenance and Service
Oiling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Care of Adapter . . . . . . . . . . . . . . . . . . . . . . . . .17
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Pivot Adjustment . . . . . . . . . . . . . . . . . . . . . . . .17
Contents

iv • AMMCO 700/705/710 Brake Lathes
Safety
Safety Notices and
Decals
For your safety, and the safety of others, read and
understand all of the safety notices and decals includ-
ed here and on the unit.
Read entire manual
before installing,
operating, or servic-
ing this equipment.
Proper maintenance
and inspection is
necessary for safe
operation.
Do not operate a
damaged lathe.
Warning
This equipment incorporates parts such as snap
switches and power receptacles which tend to pro-
duce arcs or sparks. Therefore, when located in a serv-
ice facility, the unit should be in a room or enclosure
provided for the purpose, or should be at least 18” or
more above floor to minimize the risk of igniting fuel
vapors.
Cautions and Dangers
1. Eye and face protection requirements:
“Protective eye and face equipment is required
to be used where there is a reasonable
probability of injury that can be prevented by use
of such equipment.” OSHA 1910.133 (a).
Protective goggles, safety glasses, or a face
shield must be provided by the purchaser/user
and worn by the operator of the equipment.
Make sure all eye and face safety precautions are
followed by the operator(s). Keep bystanders out
of the area.
2. Do not remove any safety equipment, belt
guards, or shortcut controls or operations.
3. Make sure drums and rotors are properly and
squarely mounted before starting lathe, and that
all parts are secure.
4. Do not wear loose clothing, jewelry, or gloves
when operating or working around a lathe.
5. Do not overload the lathe. Read and understand
the lathe specifications. Overloading is poor
machine tool practice, shortens the life of the
lathe, and could cause a failure resulting in
personal injury.
Failure to follow danger, warning, and caution
instructions may lead to serious personal injury or
death to operator or bystander or damage to prop-
erty. Do not operate this machine until you read
and understand all the dangers, warnings and cau-
tions in this manual. For additional copies of either,
or further information, contact:
Hennessy Industries, Inc.
1601 J.P. Hennessy Drive
LaVergne, TN 37086-3565
[phone] or [phone]
www.Hennessy-Ind.com
WARNING

AMMCO 700/705/710 Brake Lathes • v
Owner’s Responsibility
To maintain machine and user safety, the responsi-
bility of the owner is to read and follow these instruc-
tions:
• Follow all installation instructions.
• Make sure installation conforms to all applicable
Local, State, and Federal Codes, Rules, and
Regulations; such as State and Federal OSHA
Regulations and Electrical Codes.
• Carefully check the unit for correct initial function.
• Read and follow the safety instructions. Keep
them readily available for machine operators.
• Make certain all operators are properly trained,
know how to safely and correctly operate the
unit, and are properly supervised.
• Allow unit operation only with all parts in place
and operating safely.
• Carefully inspect the unit on a regular basis and
perform all maintenance as required.
• Service and maintain the unit only with
authorized or approved replacement parts.
• Keep all instructions permanently with the unit
and all decals/labels/notices on the unit clean and
visible.
• Do not override safety features.
Definitions of Hazard
Levels
Identify the hazard levels used in this manual with
the following definitions and signal words:
DANGER
Watch for this symbol:
It Means: Immediate hazards, which will result in
severe personal injury or death.
WARNING
Watch for this symbol:
It Means: Hazards or unsafe practices, which could
result in severe personal injury or death.
CAUTION
Watch for this symbol:
It Means: Hazards or unsafe practices, which may
result in minor personal injury or product or property
damage.
Watch for this symbol! It means BE ALERT! Your
safety, or the safety of others, is involved!
CAUTION
WARNING
DANGER
Safety
1. Read and follow instructions.
2. Always wear eye protection, avoid loose
clothing and jewelry.
3. Keep all guards, shields, and covers in place and
in working order.
4. Keep bystanders out of work area.
5. Unplug unit from power source before servicing
or adjusting.
6. Maintain unit properly, keep work surfaces and
work area clean.
CAUTION
Prevent accidents and injury, read and follow instructions.

vi • AMMCO 700/705/710 Brake Lathes
READ ALL INSTRUCTIONS
When using your garage equipment, basic safety precau-
tions should always be followed, including the following:
1. Keep guards in place and in working order.
2. Remove adjusting keys and wrenches from the tool
before turning it on. Make this a habit.
3. Keep work area clean and well lighted. Cluttered areas
and benches invite accidents.
4.To reduce the risk of fire, do not operate equipment in the
vicinity of open containers of flammable liquids (gasoline).
5. Adequate ventilation should be provided when working
on operating internal combustion engines.
6. Care must be taken as burns can occur from touching
hot parts.
7. Do not operate equipment with a damaged cord or if the
equipment has been dropped or damaged—until it has been
examined by a qualified serviceman.
8. If an extension cord is necessary, a cord with a current
rating equal to or more than that of the equipment should be
used. Cords rated for less current than the equipment may
overheat. Care should be taken to arrange the cord so that it
will not be tripped over or pulled.
9. To reduce the risk of electric shock, do not use on wet
surfaces or expose to rain.
10. Keep children away. All bystanders should be kept com-
pletely away from the work area.
11. Make the workshop kid-proof. Use padlocks and mas-
ter switches, and remove starter keys.
12. Don’t force a tool. It will do the job better and safer at
the rate for which it was designed.
13. Use the right tool. Don’t force a tool or an attachment
to do a job for which it was not designed.
14. Dress properly. Keep hair, loose clothing, neckties,
shop rags, jewelry, fingers, and all parts of body away from
moving parts. Non-slip footwear is recommended.
15. ALWAYS WEAR SAFETY GLASSES. Everyday eye-
glasses only have impact resistant lenses, they are NOT
safety glasses. Safety glasses, goggles, or a face shield will
help protect the operator from injury. Use a face shield and
dust mask during dusty operations.
16. Secure the work properly to the unit for setup and tool
bit positioning. Do not attempt to hold a drum or rotor steady
on the arbor with your hands. Both hands must be free to
operate unit.
17. Don’t overreach. Keep proper footing and balance at all
times when lathe is in operation or when working around the
unit.
18. Maintain tools with care. Keep tools sharp and clean for
best and safest performance. Follow instructions for lubricat-
ing and changing accessories.
19. Remove power from the unit and disconnect tools
before servicing and when changing accessories such as
blades, bits, cutters, etc. Follow lock-out and tag-out proce-
dures as required.
20. Avoid unintentional starting. Make sure the switch is in
the OFF (O) position before plugging the machine in or per-
forming any maintenance or service work.
21. Use of improper accessories may cause risk of injury to
operator or bystanders. Use only as described in this manual.
Use only manufacturer’s recommended attachments.
22. Never stand or lean on a lathe. Serious injury could
occur if the lathe is tipped or if the cutting tool is unintention-
ally contacted.
23. Check damaged parts carefully. Before further use of
the lathe, a guard or other part that is damaged should be
carefully checked. Immediately replace all damaged, missing,
or non-functional parts. Check for alignment of moving parts,
binding of moving parts, breakage of parts, mounting, and any
other conditions that may affect operation. Guards and other
parts that are damaged should be properly repaired or
replaced before lathe is used again.
24. Always feed the work into a blade or cutter and against
the direction of rotation. Cutters and tool bits are designed to
cut from the inside of a drum or rotor to the outer edge. Do
not attempt to cut from the outside edge in to the center.
25. Never leave tools running unattended. Turn the power
off. Don’t leave the tool until it comes to a complete stop.
26. Never use compressed air to blow the tool clean. Chips
and dust may be driven between machined parts and into
bearings, causing undue wear. They may also contact persons
in the area causing personal injury.
27. Operate the lathe in the proper environment. The lathe
incorporates parts such as snap switches and power recepta-
cles which tend to produce arcs or sparks. Therefore, when
located in a garage,the unit should be in a room or enclosure
provided for the purpose, or should be at least 18” or more
above the floor to minimize the risk of igniting fuel vapors.
Before operating the lathe, review the warning information on the lathe and the cautions, warnings and dangers in this man-
ual. Also review the following general safety instructions. Failure to follow safety instructions could result in personal injury to
operator or bystanders and damage to the lathe or personal property.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS

Brake Lathes
AMMCO 700/705/710 Brake Lathes • 1
Before You Begin
Receiving
The shipment should be thoroughly inspected as soon as it is
received. The signed bill of lading is acknowledgement by the
carrier of receipt in good condition of shipment covered by our
invoice.
If any of the goods called for on this bill of lading are shorted
or damaged, do not accept them until the carrier makes a nota-
tion on the freight bill of the shorted or damaged goods. Do this
for your own protection.
NOTIFY THE CARRIER AT ONCE if any hidden loss or damage
is discovered after receipt and request the carrier to make an
inspection. If the carrier will not do so, prepare a signed state-
ment to the effect that you have notified the carrier (on a spe-
cific date) and that the carrier has failed to comply with your
request.
IT IS DIFFICULT TO COLLECT FOR LOSS OR DAMAGE AFTER
YOU HAVE GIVEN THE CARRIER A CLEAR RECEIPT.
File your claim with the carrier promptly. Support your claim
with copies of the bill of lading, freight bill, invoice, and photo-
graphs, if available.
Although AMMCO’s responsibility ceases upon delivery of the
shipment to the carrier, we will gladly assist in tracing lost ship-
ments. Our willingness to assist in every possible manner does
not make AMMCO responsible for collection of claims or
replacement of lost or damaged materials. Shipping damage
claims will not be handled under warranty.

2 • AMMCO 700/705/710 Brake Lathes
Brake Lathes
Model 700 Vehicle Mounted Brake Lathe
Model 710 Specifications
Overall Lathe Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3/8 in. (238 mm)
Overall Lathe Depth . . . . . . . . . . . . . . . . . . . . . . . . . . .12-11/16 in. (322 mm)
Overall Lathe Width . . . . . . . . . . . . . . . . . . . . . . . . . . .11-13/16 in. (300 mm)
Feed Rate (With Rotor Driving Unit Only/180 RPM) . . . . ..0023 in. per rev. (.058 mm/rev.)
Micrometer Graduations . . . . . . . . . . . . . . . . . . . . . ..002 in. (.0508 mm/rev.)
Max. Distance Between Adjustable Mounting Brackets . . . . .8-1/32 in. (204)
Min. Distance BetweenAdjustable Mounting Brackets . . . .1-1/16 in. (27 mm)
Lathe Weight (Lathe Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 lbs. {8.17 kg)
Floor Space . . . . . . . . . . . . . . . . . . . . . . . . . . .15-3/4 in. wide X 10-1/2 in. deep
(When Stored in Case) . . . . . . . . . . . . . . . . . . . . . . . .(400 mm X 267 mm)
Components
Know Your Unit
Compare this illustration with the unit before placing it into serv-
ice. Maximum performance and safety will be obtained only when
all persons using the unit are fully trained in its parts and operation.
Each user should learn the function and location of all controls.
Prevent accidents and injuries by ensuring the unit is properly
installed, operated, and maintained.

AMMCO 700/705/710 Brake Lathes • 3
Brake Lathe Operation
To completely understand rotor turning with this
lathe, you must have a knowledge of the lathe itself.
When the lathe is plugged into a power source the car-
riage feed motor is on. When the feed engagement
knob is loose, the carriage will move through its full
travel with a few turns of the handwheel. When the
feed engagement knob is tightened, the carriage will
travel in an outward direction until the knob is loos-
ened, or the carriage reaches the end of travel. The limit
switch will turn the feed motor off when maximum
travel is reached.
Note: The carriage handwheel cannot be hand
adjusted while the engagement knob is tight.
Both faces of the rotor will be reconditioned at the
same time, the depth-of-cut on each side is determined
by each side’s dial micrometer. The lathe assembly has
a pair of serf-centering mounting brackets. These can
be adjusted to fit the bolt pattern of the caliper mount-
ing bracket on the majority of today’s vehicles. This
insures that the cutting bits will be in the proper loca-
tion for reconditioning of the rotor.
The mounting hardware containing various bolts,
spacers, washers, and nut plates, will allow for the
mounting of the lathe to most vehicles without the
need to purchase extra hardware.
Reconditioning Disc Brake Rotors
Each brake rotor should be carefully inspected for
SCORING and RUST RIDGES (at the inner and outer
circumference of the rotor). Any excessive wear or
deformity should be noted and, if not within acceptable
limits, the rotor should be replaced.
Use a micrometer to check the thickness of the rotor
at no less than three points around the circumference
about 1" (2.54 cm) in from the outer diameter. If the
thickness is less than the minimum established by the
car manufacturer (or if it will be less after recondition-
ing), the rotor should be replaced.
Note: Most often the discard thickness dimension is
cast into the rotor, not the minimum “machine to”
thickness.
Depth-Of-Cut Micrometer Dials
The depth-of-cut micrometer dials are calibrated with
both inch and metric scales. The depth-of-cut dial indi-
cates the amount of material to be cut from its side of
the rotor.
Inch Scale - A cut of .002" (one micrometer division)
on each dial from a 1" thick rotor will result in a refin-
ished rotor of .996" thick.
Metric Scale - A cut of .05 mm (one micrometer divi-
sion) on each dial from a 25.4 mm thick rotor will result
in a refinished rotor of 25.3 mm thick.
Vehicle Preparation
1. Remove the caliper to provide a secure place of
attachment for the lathe. The caliper should be sup-
ported with a wire hook to prevent strain on the flexi-
ble brake hose. Position the hook as to place the caliper
in an out-of-the-way position to avoid damage.
Note: If the rotor to be machined is connected, by the
drive train, to the wheel on the opposite side of the
vehicle, both wheels must be removed.
2. If the constant-velocity-joint boot is missing or
damaged, replace before machining rotor.
3. Secure the rotor to the hub using the Rotor Driving
Unit lug adapter as described in the section MOUNT-
ING OF LUG ADAPTER.
4. If required, rotate the steering wheel to allow
clearance for the lathe between the steering knuckle
and fender well, Fig. 1.
Note: On some rear rotor applications the shock,
sway bar, and connecting arms may need to be discon-
nected in order to gain more room by allowing the axle
to drop down.
Brake Lathes

Lathe Mounting Procedures
The lathe was designed to be mounted to the caliper mount-
ing bracket on the vehicle.
1. Loosen the bolts holding the adjustable mounting brackets
on the lathe and slide the brackets in or out to align with the
holes in the caliper mounting bracket on the vehicle.
This may be accomplished by removing the bolts holding them
to the lathe and repositioning them, being certain that they are
squarely seated in the track, and are mated with the pins in the
gear rack.
Some applications require the tool bit holders to be extended
in order to refinish the entire braking surface. This could induce
vibration during the cut. The use of the configuration shown in
Fig. 3 will prevent the vibration by eliminating the need to
extend the cutting bits, Fig. 4.
Note: When repositioning the mounting brackets, care should
be taken not to allow the gearing mechanisms to disengage. If
the gearing becomes disengaged, it needs to be recentered by
sliding both racks toward the pinion gear. Engage the end tooth
of each rack with the pinion at the same time. Locate the pins
midway between the end of the track and the pinion to allow
room for re-attaching the mounting brackets.
2. Turn the depth-of-cut knob counterclockwise until the
inboard (red) cutter rests against the carriage. Turn the carriage
handwheel clockwise until the carriage reaches the end of its
travel.
Position the lathe against the inboard side of the caliper
mounting bracket and check to see if both cutting bits will clear
the rotor, Fig. 5.
If the outboard (blue) cutter does not appear to clear the rotor,
adjust the outboard depth-of-cut knob until clearance is gained.
If the inboard (red) cutter does not appear to clear the rotor, pay
special attention to step 4 in the following section.
3. Attach the lathe to vehicle according to the guidelines in
the following three sections.
Brake Lathes
4 • AMMCO 700/705/710 Brake Lathes
Figure 2
Figure 3
Figure 4
Figure 5

AMMCO 700/705/710 Brake Lathes • 5
Use of Mounting Hardware
1. The lathe mounting hardware was designed for
use on vehicles with a pressed hub/knuckle/rotor
assembly or where removal of the rotor is difficult or
inefficient.
2. The vehicle’s caliper bolts can be used to mount
the lathe if the holes in the steering knuckle or caliper
mounting bracket are threaded and on the inboard side
of the rotor, Fig. 6. Also, the vehicle’s caliper bolts
should be 1-1/2" in length or longer. Otherwise, the
mounting bolts and nut plates provided in the hardware
package will be needed.
3. Whether you are mounting the lathe with the vehi-
cle caliper bolts or with the mounting bolts provided in
the hardware kit, various combinations of spacers may
be required to take up the space between the bolt
heads and the lathe mounting bracket to keep the bolt
from interfering with the rotor.
Note: When using more than one spacer, care should
be taken to use the tongue and groove configuration to
prevent misalignment, Fig. 7. If the small 1/8" spacer is
required, it should be placed on the caliper bolt last
since it does not have the counter-bore the other spac-
ers possess.
4. The spacers may also be used to achieve the
proper lathe position on the rotor, by placing the spac-
ers on the caliper/mounting bolts between the lathe
mounting bracket and the caliper mounting bracket,
Fig. 8.
5. The flat washers, provided in the hardware kit,
should be used between the caliper bolt head and the
spacers to insure a good seat for the bolt head, Fig.8.
Brake Lathes
Figure 7
Figure 8
Figure 6
Inboard Side
(Toward Vehicle)
Outboard Side
(Away From
Vehicle)
Correct Configuration of
Spacers
Incorrect Configuration of
Spacers
Inboard Caliper
Mounting Bracket
Caliper Bolt
(1-1/2" Min. Length)
Flate
Washer
Spacer - Adjust Lathe
Placement on Rotor
Inboard Caliper
Mounting Bracket
Lathe
Mounting
Bracket

Installation with the Vehicle’s Caliper Bolts
Note: Use Figure 9, to assist during installation of the brake
lathe using the vehicle’s caliper bolts.
1. Place a washer on the caliper bolt.
2. Place spacer(s), as required, onto the caliper bolt.
3. Insert the caliper bolt with spacers and washer into the
upper lathe mounting bracket.
4. Place a spacer, if required, on the caliper bolt between the
lathe mounting bracket and caliper bracket to adjust the place-
ment of the lathe on the rotor.
5. Lift the lathe and align the caliper bolt with the upper hole
in the caliper mounting bracket. Insert the caliper bolt into the
upper mounting bracket.
6. Finger tighten the caliper bolt into the caliper mounting
bracket. Let the lathe hang down.
7. Make sure the caliper bolt does not interfere with the rotor.
If necessary, remove the caliper bolt and add spacers.
8. Adjust the lathe mounting brackets until the lower lathe
mounting bracket aligns with the lower hole in the caliper
mounting bracket, Fig. 10.
9. Repeat steps 1 thru 7 to install the lower caliper bolt.
10. Torque the caliper bolts to 15 foot pounds.
Brake Lathes
6 • AMMCO 700/705/710 Brake Lathes
Figure 9
Figure 10
Lathe Frame
Lathe Mounting
Bracket
Spacers
(As Required)
Flat Washer
(If Needed)
Caliper Bolt
Spacer
(If Needed)
Inboard Caliper
Mounting Bracket
(Threaded)
Rotor
Lathe Cutting
Arms

Installation With Mounting Bolts Supplied in
Mounting Hardware
Note: Use Figure 11 to assist during installation of the brake
lathe when using the mounting bolts supplied with the mount-
ing hardware.
1. Place spacer(s), as required, onto the mounting bolt.
2. Insert the mounting bolt with spacers into the upper lathe
mounting bracket.
3. Lift the lathe and align the upper mounting bolt with the
upper caliper bracket bolt hole. Insert the bolt through the
caliper bracket.
4. Place a nut plate between the upper caliper bracket and the
rotor. Finger tighten the mounting bolt into the nut plate. Let the
lathe hang down.
5. Make sure the mounting bolt does not interfere with the
rotor. If necessary, remove the bolt and add spacers.
6. Adjust the lathe mounting brackets, Fig. 10 on the previous
page, until the lower lathe mounting bracket aligns with the
lower caliper bracket bolt hole.
7. Repeat steps 1 thru 5 to install the lower mounting bolt.
8. Torque the mounting bolts to 15 foot pounds.
Brake Lathes
AMMCO 700/705/710 Brake Lathes • 7
Figure 11
Lathe Frame
Mounting Bolt
Lathe Mounting
Bracket
Nut Plate
Spacer
(If Needed)
Inboard Caliper
Mounting Bracket
Rotor
Lathe Cutting
Arms

Set-Up and Machining
1. Properly mount the lathe to the vehicle, as described in the
Section LATHE MOUNTING PROCEDURES.
2. Properly secure the rotor to the hub, as described in the
section MOUNTING OF LUG ADAPTER.
3. Install a silencer band on the outside diameter of the rotor
to dampen vibrations during cutting.
4. Prepare and install the Rotor Driving Unit.
Note: It is not necessary to secure the opposite rotor for con-
sistent speed.
5. Check to insure that the cutting bits are clear of the rotor,
Fig. 12. Plug the Lathe into the switched outlet on the Rotor
Driving Unit, and turn on the Rotor Driving unit.
Note the position of the cutting bits relative to the rotation of
the rotor. The direction of rotation must be into the top face of
the cutting bits, Fig. 13. Correct the cutting bit direction if nec-
essary.
6. Double check the positions of the cutting bits relative to the
rotor. Each should clear the rotor to allow travel to the inner
diameter of the braking surface, Fig. 14.
7. Make sure the engagement knob is loose.
8. Check to insure there is enough travel in the carriage to
allow the cutting bits to reach the inner diameter of the braking
surface. Turn the handwheel counterclockwise to move the car-
riage toward the rotor.
Note: Do Not jam cutting bits into the hat or raised portion of
the rotor.
9. Position the cutting bits about 1/2" in from the outer edge
of the braking surface, Fig. 15.
Brake Lathes
8 • AMMCO 700/705/710 Brake Lathes
Figure 12
Figure 13
Figure 14 Figure 15

10. Turn the (blue) depth-of-cut knob clockwise to advance
the outboard cutter until it lightly contacts the brake surface.
Holding the knob still, rotate the micrometer dial to zero, Fig. 16.
11. Turn the (red) depth-of-cut knob clockwise to advance the
inboard cutter until it lightly contacts the brake surface. Holding
the knob still, rotate the micrometer dial to zero.
Note: Once you have zeroed a dial, never use the dial microm-
eter to advance or withdraw a cutting bit; the dial may slip, los-
ing the zero position. Use the depth-of-cut knob to advance or
withdraw the cutting bit.
12. Advance the carriage with the handwheel until the out-
board cutting bit reaches the inside edge of the braking surface
of the rotor.
13. Turn the depth-of-cut knobs individually to set each cut-
ting bit to the desired depth-of-cut (usually .006" per side or
three divisions of the micrometer), Fig. 17.
Note: A .006" depth-of-cut per side (a total of .012") will recon-
dition most rotors, although some severely grooved rotors may
require more than one cut.
Cuts may be .002" -- .010" deep.
14. Tighten the cutter locking knobs, Fig. 18.
15. Tighten the engagement knob in the center of the hand-
wheel, Fig. 19. This will start the cut. When the cutting bits have
cleared the outer edge of the rotor, loosen the engagement
knob to stop the carriage.
16. Turn off the Rotor Driving Unit and inspect both surfaces
of the rotor.
17. If part of the brake surface was not cut, leave the cutters
locked in position. Turn on the Rotor Driving Unit. Slowly turn the
handwheel to move the carriage to the inside edge of the brak-
ing surface.
18. Repeat steps 13, 14, 15, and 16.
Brake Lathes
AMMCO 700/705/710 Brake Lathes • 9
Figure 16
Figure 17
Figure 18Figure 19

Restoring Vehicle
After reconditioning the rotors on the vehicle, it is important to
return the vehicle to proper working condition.
Refer to the manufacturer’s specifications for correct reassembly
procedures. Use the Brake Specifications manual supplied for sug-
gested torque values, or refer to the manufacturer’s specifications.
1. Remove the lathe from the vehicle.
2. Remove lug nuts (if used).
3. Reassemble caliper to vehicle.
4. Torque all bolts to correct specifications.
5. Remount wheel, and torque lug nuts.
6. Pump brake pedal several times using 1 to 2 strokes before
moving vehicle.
7. Follow any other rules and regulations which apply when per-
forming brake service.
Maintenance and Service
Oiling
Although the lathe’s sliding surfaces are coated with a dry lubri-
cant, before using the lathe, the sliding surfaces and the lead
screw drive should be wiped down using an oiled rag. Use a light
weight machine oil for the daily wipe-down of these parts.
Felt Wipers: Apply light machine oil to the felt way wipers.
Note: The use of excessive oil will cause undue wear on the
lathe. DO NOT over lubricate.
Cleaning
Keep the lathe as clean as possible for trouble free operation as
well as safety and longer life. Use a brush to sweep metal chips
and dust off the lathe, and out of the gearing mechanism. This
should be done daily.
Do not use compressed air to blow the lathe clean as chips
and dust may be driven between machined parts and into the
ways causing undue wear.
Gib Adjustment
Both cutters and the carriage have set screws provided to adjust
the gibs.
If gibs are allowed to become very loose before an adjustment is
made, all chips and dirt must be cleaned from between the sliding
surfaces prior to readjustment.
To adjust the cutter gibs:
1. Loosen the locking knob on the cutter.
2. Tighten each set screw separately, while turning the depth-of-
cut knob to move the cutter up and down on the ways.
3. Tighten only until slight resistance is felt as the depth-of-cut
knob is turned.
Brake Lathes
10 • AMMCO 700/705/710 Brake Lathes

Figure 20
Figure 21
4. Move the cutter thru its entire travel. Check to see that no
tight spots (or loose spots) exist.
5. Push the far end of the cutter back and forth. Check to see that
no rocking motion exists, Fig. 20. Re-adjust set screws if required.
6. Repeat for the other cutter.
To adjust the carriage gib:
1. Loosen the engagement knob in the center of the handwheel.
2. Tighten each of the three (3) set screws separately, while turn-
ing the handwheel to move the carriage back and forth on the
ways, Fig. 21.
3. Tighten only until slight resistance is felt as the handwheel is
turned.
4. Move the carriage through its entire travel. Check to see that
no tight spots or rocking motion exists. Re-adjust the set screws if
required.
Storage
Use the storage case provided to store the lathe and accessories
when not in use. This will protect the lathe from any damage, and
keep it clean.
If all adapters, spacers, and accessories are kept inside the box,
they will be easy to locate when needed again.
Care Of Mounting Hardware
The mounting hardware is designed for mounting the lathe to the
vehicle ONLY. DO NOT misuse this hardware.
DO NOT throw the bolts, spacers, and nut plates into the storage
box. Use the supplied storage rack.
Great care should be taken in the use, handling, and
storage of the mounting hardware. Even the smallest
nick, scratch, or loose chip can cause problems when
installing the lathe onto the vehicle.
Installation of the Hardware
Storage Rack
Note: Use MOUNTING HARDWARE illustration and the Parts
Identification Manual to accomplish steps 1 thru 4.
1. Hang the storage rack inside the lathe storage chest by hook-
ing the lip of the rack over the lip of the chest.
2. Fully Insert the screw, into the storage rack, to secure the rack
to the storage chest.
3. Place the mounting bolts in the two circular holes on the left
end of the storage rack.
4. From left to right, the following parts should be loaded on the
storage rack by pushing the parts over the tongues on the rack: flat
washers, nut plates, 1/8" spacers, 1/4" spacers, 1/2" spacers, 1"
spacers, end 2" spacers.
CAUTION
Brake Lathes
AMMCO 700/705/710 Brake Lathes • 11

Model 705 Rotor Driving Unit
Model 710 Specifications
Overall Driving Unit Height — Maximum . . . . . .58-5/8 in. (149 cm)
Spindle Drive Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . .180 RPM
Spindle Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/2 HP
Drive Adapter To Floor — Maximum . . . . . . . . .54-1/2 in. (138 cm)
Drive Adapter To Floor — Minimum . . . . . . . . . . . .18 in. (45.7 cm)
Electrical Specifications . . . . . . . . .115 VAC. 60 Hz, I Ph, 10 Amps
Drive Unit Weight . . . . . . . . . . . . . . . . . . . . . . . .118 lbs. (53.5 kg)
Floor Space . . . . . . . . . . . . . . . . .20-1/4 in. wide x 21-7/8 in. deep
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(514 mm x 556 mm)
12 • AMMCO 700/705/710 Brake Lathes
Brake Lathes
Know Your Unit
Compare this illustration with the unit before placing it into
service. Maximum performance and safety will be obtained only
when all persons using the unit are fully trained in its parts and
operation. Each user should learn the function and location of all
controls. Prevent accidents and injuries by ensuring the unit is
properly installed, operated, and maintained.
Components

AMMCO 700/705/710 Brake Lathes • 13
Electrical Wiring
Requirements
The driving unit should be electrically grounded to pro-
tect the operator from shock. The unit is equipped with
an approved 3-conductor cord and a 3-prong grounding
type plug to fit the proper grounding type receptacle. If
your unit is for use on 115 volts, it has a plug and outlet
as illustrated in Fig. 22. Use only 3-wire extension cords
which have 3-prong grounding type plugs and 3-pole
receptacles which accept the unit’s plug. 230 volt units
use a plug and outlet like those illustrated in Fig. 23.
Any line voltage lower or higher than ten percent
(10%) of nominal will cause problems with the machine.
If the machine receives below or above the design limit,
erratic operation will ensue with a degradation in com-
ponent reliability and life. By law the power company
must supply power within the ten percent (10%) limit of
nominal line. It is up to the customer to see that his
facility is properly wired and is supplying power to the
machine within its design limits. Inadequate voltages
and wiring will only produce problems.
AMMCO electrical and electronic based machines are
designed for nominal line voltages with variations of ten
percent (10%) around the nominal, i.e.; 115 volt input
could vary from 103 volts on the low side to 127 volts
on the high side. These percentages also apply to 230
VAC based products.
Replace or repair damaged or worn cords immediately.
Thermal Overload Circuit Breaker
The driving unit is equipped with a thermal overload
circuit breaker, it is located in the ON/OFF switch. If the
drive unit’s function is interrupted due to an overload,
this switch has to be reset.
1. Turn the switch to the OFF position.
2. Unplug the drive unit from the power source.
3. Allow 10-15 minutes for the unit to cool down.
4. Make sure the cause of the overload is located and
eliminated.
5. Plug drive unit back into power source.
6. Reset circuit breaker.
Assembly Instructions
The rotor driving unit contains three (3) main assem-
blies. They are:
1. Floor Stand
2. Motor/Gearbox Unit
3. Lug Adapter Set
1. Center the motor/gearbox assembly between the
uprights of the floor stand. Align the holes in the motor
bracket with the holes in the uprights. From the outside,
insert a bolt and washer through the holes. Add a
washer between the upright and motor/gearbox unit,
then slide a washer and locknut over the bolt on the
inside of the floor stand. Repeat on the opposite side,
Fig. 24.
2. Tighten the motor bracket bolts until the
motor/gearbox assembly will hold steady in any position
it is rotated to.
3. Slide the drive shaft over the end of the gearbox
output shaft. tighten the two (2) set screws to securely
hold the shaft in place, Fig. 25.
Brake Lathes
Figure 24
Figure 25
Figure 23Figure 22

Mounting of Lug Adapter
The lug adapter is designed to use the vehicle’s lug nuts when
mounting.
The lug adapter comes complete with four (4) legs. These are
movable to adjust to the number of lugs on the vehicle.
The lug adapter is also self-centering when mounted on the
vehicle’s rotor/hub assembly.
The minimum legs to use on any vehicle is three. The num-
bering scheme on the lug adapter allows for the proper location
of the legs for the bolt pattern required.
Four wheel drive vehicles and other large hub vehicles may
require the optional AMMCO 4 x 4 Lug Adapter Kit, order part
No. 927574.
1. Determine if the bolt pattern on the rotor has 3, 4, 5, 6, or
8 lugs.
2. Select correct pattern on plate, Fig. 26.
3. Reassemble legs to the plate. The legs are keyed as to only
turn in one direction. Turn legs to insure they are flat against the
plate. Legs should turn, without rocking.
4. Orient all legs to the full outside position, against the stop.
Hold lug adapter up to the vehicle. Turn each leg as to go over
its corresponding lug on the rotor, Fig. 27.
Start at one lug, and work in a counterclockwise direction.
Slide all the legs over the lugs, Fig. 28.
Note: On composite rotors, use remaining lug nuts by turning
the flat side against the rotor. If the style of lugs or nuts do not
allow this, use washers between the rotor and the lug nut to
prevent damage to the taper.
Brake Lathes
14 • AMMCO 700/705/710 Brake Lathes
Figure 26
Figure 27
Figure 28