Manual Part No.: 111929
Revision Date: 6/99 rev. 3
P.O. Box 3002, 1601 J. P. Hennessy Drive, LaVergne, TN USA 37086 615/641-7533 800/688-6359
HENNESSY INDUSTRIES INC. Manufacturer of AMMCO
®
, COATS®and BADA®Automotive Service Equipment and Tools.
COATS
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.
520
Wheel Lift
1. Read and understand this manual and all onmachine labels before operating this equipment.
Abuse and misuse will shorten the functional
life.
2. Do not operate equipment if the equipment has
been dropped or damaged until a qualified service technician has examined it.
3. To reduce the risk of fire, do not operate equipment in the vicinity of open containers of flammable liquids (i.e. gasoline).
4. Keep hair, loose clothing, fingers and all other
body parts away from moving parts.
5. Use only as described in this manual. Use only
manufacturer’s recommended attachments.
6. ALWAYS WEAR SAFETY GLASSES. Everyday
glasses only have impact resistant lenses; they
are NOT safety glasses.
7. Keep guards and safety features in place and in
working order.
8. Wear proper clothing. Safety toe, non-slip
footwear and protective hair covering to contain
hair are recommended. Do not wear jewelry,
loose clothing, neckties, or gloves when operating the wheel lift.
9. Keep work area clean and well lighted.
Cluttered and/or dark areas invite accidents.
10. Repair or replace any part that is damaged or
worn and that may cause unsafe operation.
11. Never overload or stand on the wheel lift.
12. Do not allow untrained persons to operate
machinery.
Table of Contents
Important Safety Instructions . . . . . . . . . . . . . . .ii
Definitions of Hazard Levels . . . . . . . . . . . . . . .1
Owner's Responsibility . . . . . . . . . . . . . . . . . . .1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . .2
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . .2
Safety Devices . . . . . . . . . . . . . . . . . . . . . . . .2
Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Workspace Requirements . . . . . . . . . . . . . . . .3
Pneumatic Connection . . . . . . . . . . . . . . . . . .4
Centering Setup . . . . . . . . . . . . . . . . . . . . . . .4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Control Identification . . . . . . . . . . . . . . . . . . .5
Adjustable Muffler . . . . . . . . . . . . . . . . . . . . .5
Layout of Functional Parts . . . . . . . . . . . . .5-6
Routine Maintenance . . . . . . . . . . . . . . . . . . . . .7
Moving the Machine . . . . . . . . . . . . . . . . . . . .7
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . .7
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
ii • 520 Wheel Lift
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
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
could 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!
Owner's Responsibility
To maintain machine and user safety, the
responsibility of the owner is to read and follow these instructions:
• 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 on the unit clean and
visible.
520 Wheel Lift • 1
Failure to follow danger, warning, and cau-
tion instructions may
lead to serious personal injury or death to
operator or bystander or damage to property.
Do not operate this machine until you read
and understand all the dangers notices, warnings and cautions in this manual. For additional copies of the warning labels or manuals
or further information, contact:
Hennessy Industries, Inc.
P.O. Box 3002, 1601 J.P. Hennessy Drive
LaVergne, TN 37086-1982
(615) 641-7533 or (800) 688-6359
DANGER
DANGER
WARNING
CAUTION
Introduction
The Coats wheel lift when positioned next to a wheel
balancer can be used to lift car, motorcycle and van
wheels (with diameters from 20.5" to 33.5" and
weighing up to 175 lbs.) and center them automatically with the balancer stub shaft. Any other use is
improper. Before beginning any kind of work on or
with this machine, carefully read and understand the
contents of these operating instructions.
Keep this manual near the machine and consult it as
needed during operations.
Specifications
Working Pressure 115-145 psi
Minimum Wheel Diameter 20.5"
Maximum Wheel Diameter 33.5"
Maximum Wheel Weight 175 lbs.
Weight of the Lift 190 lbs.
Before you Begin
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
conditions of the 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 notation 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 ask
the carrier to make an inspection. If the carrier will
not do so, prepare a signed statement to the effect
that you have notified the carrier (on a specific 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 photographs, if available. Although
COATS’ responsibility ceases upon delivery of the
shipment to the carrier, we will gladly assist in tracing lost shipments. Our willingness to assist in every
possible manner does not make COATS responsible
for collection of claims or replacement of lost or
damaged materials. Shipping damage claims will not
be handled under warranty.
Safety Devices
The Coats wheel lift is equipped with a pressure
relief device (Fig. A) that prevents air supply pressures higher than 145 psi.
Figure A - Pressure Relief Device
This device comprises:
- a pressure relief valve factory set and locked at
145 psi.
- a maximum pressure valve factory set at 145
psi which cuts in if the relief valve fails.
Removing or tampering
with these safety devices
may lead to personal
injury and damage to property
Transport
The Coats wheel lift is delivered packed in a crate.
Move it with a fork lift truck inserting the forks under
the crate as shown in Fig. B.
Figure B- Crate Transport
Overall packing size: 54" x 19" x 15.5"
Wheel lift gross weight: 200 lbs.
Unpacking
Once the packing material has been removed,
check the machine visually for any signs of damage.
Keep the packing materials out of the reach of children as they can be a source of danger.
2 • 520 Wheel Lift
WARNING
Installation
Mounting
1. Remove the 4 screws, labeled item 1 in Fig. C,
insert in the base, labeled item 2 in Fig. C.
2. Position the upright, labeled item 3 in Fig. C, on
the base and secure it with the 4 screws.
Figure C - Wheel Lift Installation Diagram
Use a sling for the upright
(minimum length of 24")
putting it under the upper
wheel carrier, labeled item 4 in Fig. H, and inside
the handle, labeled item 2 in Fig. H, as shown in
Fig. L. Attach the ends of the sling to a hoist
above the lift. Hoist and move the lift using
hoisting equipment with adequate carrying
capacity.
Figure H - Sling Position for Upright
3. Remove the 4 screws, labeled item 4 in Fig. C,
and use them in the same holes to attach the
lower wheel carrier, labeled item 5 in Fig. C.
4. Similarly, remove the 4 screws, labeled item 6 in
Fig. C, and use them in the same holes to
attach the upper wheel carrier, labeled item 7 in
Fig. C.
5. Remove the screw, labeled item 8 in Fig. C, and
use it in the same hole to mount the compressed air supply assembly, labeled item 9 in
Fig. C.
Workspace Requirements
Position the lift near the wheel balancer (see Fig. D)
so that:
1. When a wheel is on the lift, it is lined up with the
balancer stub shaft.
2. The lift is positioned to allow:
- the wheel to be loaded (when the upright is
retracted)
- the wheel to be moved against the stub shaft
(when the upright is forward).
Figure D - Wheel Lift Installation Diagram
The Coats wheel lift must be attached to the
floor. The base should be anchored to the floor
using two normal metal expansion bolts (3⁄8" x 2 3⁄4")
to bolt the base to the floor. These bolts are packaged with the wheel lift. Be certain that these fasteners are correct for the location chosen.
If the lift is not to be used
on concrete, other appropriate fasteners must be
used.
520 Wheel Lift • 3
DANGER
WARNING
Pneumatic Connection
Connect the air intake, labeled item 1 in Fig. E, to
the compressed air system with a working pressure
of 115-145 psi. Use a compressed air hose with an
inside diameter of 1⁄4" - 3⁄8".
Figure E- Connect the Air Intake
Make sure the air hose is
free of the track area. If
the air hose is damaged,
the lift may descend unexpectedly.
Centering Setup
If necessary, centering performance can be adjusted
so that the wheel is lifted to the precise heights of
the balancer stub shaft.
Follow these steps:
1. Mount a wheel on the lift and raise it as detailed
in the “Operating” section on page seven of this
manual.
2. Use two 17mm wrenches to adjust the nuts,
labeled item 1 in Fig. F, until the wheel is centered with the balancer stub shaft.
3. Tighten the nuts against each other.
Figure F- Center Wheel with Balancer Stud Shaft
4 • 520 Wheel Lift
CAUTION
Operation
Control Identification
Toggle switch (Fig. G) is used to raise and lower the
wheel:
- move the switch upward (Position 1) to clamp
the wheel and raise it until the wheel is automatically centered with the balancer stub shaft.
- move the switch to the center (Position 0) to
release the wheel from the clamps so that the
carriage can be moved backwards (do this only
when the wheel has been clamped onto the
balancer stub shaft).
- move the switch downward (Position 2) to
lower the wheel clamps to load or unload a
wheel.
Figure G- Toggle Switch
Adjustable Muffler
Disconnect the air supply
line before attempting any
adjustment.
This wheel lift has been equipped with an adjustable
muffler. The purpose of this muffler is to allow the
operator to control the rate at which the wheel
descends. It is recommended that the muffler be set
as follows:
1. Turn the muffler clockwise until it is finger tight
against the valve.
2. Turn the muffler counterclockwise two revolutions.
This has been preset at the factory. The further the
muffler is adjusted counterclockwise the faster the
wheel will descend. Caution should be used when
setting the descent rate. The muffler can fall off if
adjusted too far. The lift MUST have the muffler in
place to operate.
Layout of Functional Parts (Fig. H)
1. Toggle Switch
2. Carriage Moving Handle
3. Flange and Cone Holders
4. Upper Wheel Clamp
5. Lower Wheel Clamp
6. Upright
7. Base
8. Compressed Air Connector
Figure H- Wheel Lift Functional Parts
Before moving the
upright, make sure the
track area is clear of
debris.
1. Use the handle, labeled item 2 in Fig. H, to
move the upright, labeled item 6 in Fig. H, back
to create the space needed to load the wheel.
2. Move the toggle switch, labeled item 1 in Fig. H,
down (Position 2).
3. Roll the wheel onto the lower wheel clamp,
labeled item 5 in Fig. H.
520 Wheel Lift • 5
WARNING
WARNING
4. Move the toggle switch upward (Position 1). The
wheel will be clamped between the upper and
lower wheel clamps and raised to the height of
the balancer stub shaft.
During this operation, do
not put your hands on the
top of the wheel. Your
hands could be pinched between the wheel and
the clamp.
5. Use the handle, labeled item 2 in Fig. H, to
move the upright, labeled item 6 in Fig. H, forward until the wheel is on the balancer stub
shaft and ready to be mounted on the balancer.
6. Secure the wheel to the balancer using suitable
mounting adapters.
7. Move the toggle switch, labeled item 1 in Fig. H,
to the center (Position 0) to release the wheel
from the clamps.
8. Move the upright, labeled item 6 in Fig. H, back-
ward to free the wheel balancer work area.
9. Balance the wheel.
10. Move the upright, labeled item 6 in Fig. H, for-
ward until the wheel clamps, labeled items 4 & 5
in Fig. H, are positioned on the wheel.
11. Move the toggle switch up (Position 1) to clamp
the wheel between the wheel clamps.
During this operation, do
not put your hands on the
top of the wheel. Your
hands could be pinched between the wheel and
the clamp.
12. Remove the wheel from the balancer stub shaft.
13. Move the upright backward to create the space
needed to unload the wheel.
14. Move the toggle switch, labeled item 1 in Fig. H,
down (Position 2) to lower the wheel and
release it from the clamps.
15. Turn the wheel by hand until it comes out of the
lower wheel clamp.
6 • 520 Wheel Lift
DANGER
DANGER
Routine Maintenance
The Coats Wheel lift does not need any special routine
maintenance. To ensure correct functional performance and a long working life, lubricate the following
surfaces once a month with a silicone spray lubricant:
- the hex bar along which the clamps run, labeled
items 4 & 5 in Fig. H
- the hex runners inside the base
- the base wheels
When lubricating the machine also take the time to
clean the track that runs between the hex bars. Wheel
weights, debris, and hand tools can get between the
track.
Moving the Machine
Follow these steps if the lift has to be moved.
1. Disconnect the lift from the compressed air supply.
2. Unbolt the lift from the floor.
3. Move the upright, labeled item 6 in Fig. H, to its
limit stop.
4. Use a sling for the upright (minimum length 24")
putting it under the upper wheel clamp, labeled
item 4 in Fig. H, and inside the handle, labeled
item 2 in Fig. H, as shown in Fig. L.
5. Attach the ends of the sling to a hoist above the
lift. Hoist and move the lift using hoisting equipment with adequate carrying capacity.
Storing
If the lift has to be stored for a long time:
1. Disconnect the lift from the compressed air supply.
2. Grease thoroughly:
- the hex bar along which the clamps run, labeled
items 4 & 5 in Fig. H
- the hex runners inside the base
- base wheels
3. Cover the lift with a plastic sheet.
Troubleshooting
Problem: When the toggle switch is moved upwards
the wheel is not clamped and raised.
Causes: Ei ther t here i s not enough pressure in the
compressed air system or the air supply lines
are crushed or damaged.
Solution: Increase the supply air pressure to no more
than 145 psi and/or replace damaged air
lines.
520 Wheel Lift • 7
8 • 520 Wheel Lift
ITEM # PART # QTY. DESCRIPTION
1 111939 1 Plastic Switch Cover
2 112434 1 Pneumatic Valve Complete
3 111940 1 Pulley
4 112432 4 Screw - M6 x 20
5 112430 1 Piston Gasket 50mm
6 112429 1 “O” Ring Seal 144mm
7 111945 5 Coats Accessory Pegs
8 112431 2 Coaxial Roller Complete (Fixed)
9 112433 1 Air Regulator Complete
10 112439 2 Lipped Gasket
11 112436 1 Tee Fitting 1⁄
8
1
⁄86-4
12 112437 1 Double Union Fitting 6-4 x 6-4
13 111941 8 Screw
14 111942 1 Adjustable Cable
15 111943 1 Lower Wheel Clamp
16 111944 1 Cable
17 112435 2 Ell Fitting 1⁄8, 6-4
18 112438 1 Pneumatic Hose
19 111927 1 Caution Decal
20 111938 1 Warning Decal
21 111946 4 Screw
22 111933 2 Anchor Bolts
23 111955 1 Piston Gasket
24 111956 1 “O” Ring Seal
25 111957 1 Cylinder Assembly
26 111958 1 Muffler
27 112832 2 Coaxial Roller Complete (Adjustable)
520 Wheel Lift • 9
111929 6/99 rev. 3 ©Copyright 1998 Hennessy Industries and COATS All Rights Reserved Printed in U.S.A.
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