ATD Tools ATD-7551 User manual

MacPherson Strut Spring Compressor Set
Item 3980
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
ATD-7551

Page 2
Maximum Spring Diameter 5/8 IN.
Maximum Strut Spring Outside Diameter 5.5 IN.
Save This Manual
Keep this manual for the safety warnings and
precautions, assembly, operating, inspection,
maintenance and cleaning procedures.
Safety Warnings
WARNING: When using electric tools, machines or
equipment, basic safety precautions should
always be followed to reduce the risk of
General Safety Warnings
1. Read all instructions before using this tool.
2. Use as a pair only. Tighten and release evenly and
slowly. Only use hand tools to tighten/release.
3. Secure spring in place with safety hooks before use.
4. Keep work area clean. Cluttered
areas invite injuries.
5. Consider work area conditions. Don’t use
in damp, wet, or poorly lit locations. Don’t
expose to rain. Keep work area well lit.
6. Keep children away from work area.
Store tool out of children’s reach
7. Store idle equipment. When not in use, tools should
be locked up in a dry location to inhibit rust.
8. Don’t force the machine or tool. It will
do the job better and more safely at
the rate for which it was intended.
9. Use the right tool. Don’t force a small
tool or attachment to do the work of a
larger industrial tool. Don’t use a tool for a
purpose for which it was not intended.
10. Dress properly. Don’t wear loose clothing or
jewelry. They can be caught in moving parts.
Protective gloves and non-skid footwear are
recommended when working. Wear restrictive
hair covering to contain long hair, preventing
it from getting caught in machinery.
11. Use eye and ear protection. Wear
ANSI-approved safety goggles during use.
12. Don’t overreach. Keep proper footing
and balance at all times.
13. Maintain tools with care. Keep tools sharp
and clean for better and safer performance.
Follow instructions for lubricating and
changing accessories. Keep handles dry,
clean, and free from oil and grease.
14. Stay alert. Watch what you are doing, use common
sense. Don’t operate any tool when you are tired.
15. Check damaged parts. Before using any tool, any
part that appears damaged should be carefully
checked to determine that it will operate properly
and perform its intended function. Check for
alignment of moving parts, binding of moving parts,
breakage of parts, mounting, and other conditions
that may affect its operation. Any part that is
damaged should be properly repaired or replaced
by an authorized service center unless otherwise
indicated elsewhere in the instruction manual.
16. Replacement parts and accessories. When
servicing, use only identical replacement
parts. Only use accessories intended for
use with this tool.
17.
alcohol or drugs. Read warning labels on
prescriptions to determine if your judgment
there is any doubt, do not operate machine.
18. Use for intended purpose only. To prevent
serious injury and/or property damage, only
use this product to compress strut springs.
SAVE THESE
INSTRUCTIONS.

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Operation
Read the ENTIRE IMPORTANT
SAFETY INFORMATION section at the
beginning of this manual including
all text under subheadings therein
before set up or use of this product.
Before each use, inspect the Safety
Hooks, Brackets, and the Puller Hooks on
the Strut Spring Compressors. Do not use if
.
Setup
For the purposes of this manual, it is assumed you will
be removing a strut spring from a MacPherson-style strut
assembly which has been removed from the vehicle.
WARNING: To prevent serious injury and/
or property damage, only use this
product to compress strut springs.
1. Place the Strut Assembly down on a
workbench or other solid work surface.
2. Examine the strut spring inside the Strut Assembly.
You will need to identify areas at each end of
the strut spring to attach the Puller Hooks of the
Strut Spring Compressor. There needs to be
enough space between the coils for the Puller
compression to collapse the spring enough for
safe removal. Ideally you will place the Puller
Hooks towards the outer ends of the coil spring.
3.
Support Bar
Nut (9)
Double Puller
Hook (2)
Puller
Hook (1)
Figure 1 – Adjusting the Puller Hook
Adjust the Support Bar Nut (9) to move the
Double Puller Hook (2) to the end of the
Support Bar (3), as shown in Figure 1.
4.
Double Puller
Hook (2)
Figure 2 – Proper Hook Placement
Place the Double Puller Hooks (2) around
in Step 2, as shown in Figure 2.
5.
Puller
Hook (1)
strut
spring
Double Puller
Hook (2)
Figure 3 – Compressor-Spring Alignment
strut spring at the end opposite from Step
4. Make sure the Strut Spring Compressor
is parallel (straight up and down) with the
Strut Assembly, as shown in Figure 3.
6. Tighten the Support Bar Nut (9) until
it contacts the Puller Hook (1).
7. Remove the Wing Nuts (4) from
two of the Safety Hooks (6).

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8.
Double
Puller
Hook (2)
Double
Puller
Hook (2)
Puller
Hook (1)
Support
Bar (3)Wing Nut (4)
Bracket (5)
Safety
Hook (6)
Figure 4 – Safety Hook Positioning
Place one Safety Hook (6) on each side
of the Puller Hook (1) and around each
strut spring, as shown in Figure 4.
9. Place the Bracket (5) over the two threaded
ends of two Safety Hooks (6). The Brackets
(5) should hold the two Safety Hooks (5)
together next to the Puller Hook (1).
10. Thread one Wing Nut (4) onto each Safety
Hook (6) then tighten the Bracket (5) against
the Puller Hook as shown in Figure 4. The
11. Repeat Steps 2 through 10 with the second
Strut Spring Compressor Assembly.
WARNING! Always use both Strut Spring
Compressors on the same spring,
at the same time.
Removing The Strut Springs
1. Check the Safety Hooks (6) to ensure
they are installed correctly.
2. Rotate the Strut Assembly so you can
easily access the Support Bar Nut (9)
on each Strut Spring Compressor.
3. Begin to tighten the Support Bar Nut (9) on one
Strut Spring Compressor as shown in Figure 5.
Tighten the Support Bar Nut (9) about one inch,
then tighten the Support Bar Nut (9) of the other
Strut Spring Compressor an equal amount.
Figure 5 – Tighten the Nuts Evenly
Support
Bar Nut (9)
Support
Bar Nut (9)
WARNING! To prevent serious injury or DEATH
from the spring suddenly launching free:
Tighten the NUTS EVENLY. Do not tighten
one Strut Spring Compressor all at once.
4. As you tighten the Support Bar Nut (3) on each
Strut Spring Compressor, you will be compressing
the strut spring. When you compress the strut
spring enough to allow free play of the coil spring
on the Strut Assembly, you may remove the Strut
Bearing Nut at the top of the Strut Assembly
and remove the Strut Bearing and Top Hat.
You can now remove the compressed strut spring.
WARNING! To reduce the pressure on the
spring and maintain better stability, only
tighten as much as is necessary.
5. If you have tightened the Coil Spring Compressors
as far as possible and there is no free play of
the coil spring on the Strut Assembly, DO NOT
REMOVE the Strut Bearing Nut. Remove
the Coil Spring Compressors evenly and
place the Puller Hooks further apart on the
coil spring in order to compress more of the
coil spring. Repeat Steps 2 through 6.
6. Do not store a compressed coil spring
for ANY length of time, even if you are
immediately replacing the Strut. Loosen
the Support Bar Nuts (9) on the Coil Spring
Compressors EVENLY to reduce pressure.

Page 5
Maintenance
in this manual must be performed
technician.
TO PREVENT SERIOUS INJURY
FROM TOOL FAILURE:
Do not use damaged equipment.
If abnormal noise or vibration
occurs, have the problem
corrected before further use.
Cleaning, Maintenance,
and Lubrication
Before and after each use, inspect the Safety
Hooks, Brackets, and the Puller Hooks on
the Strut Spring Compressors. Do not use
.
NOTE: Keep thread clean and lubricated at all times.

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Nomenclature/Terms (For reference only - No repair parts are available seperately)
17
2
3
3
6
6
5
4
Single Puller Hook
Double Puller Hook
Support Bar
Wing Nut Support Bar
Bracket
5
Bracket
Safety Hook
Washer
Safety Hook
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE NOMENCLATURE/TERMS DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS
QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY
ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
THERE ARE NO REPLACEMENT PARTS AVAILABLE FOR THIS PARTICULAR PRODUCT.