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SKU 43753 

For technical questions, please call 1-800-444-3353. 

Page 4

REV 01e, 08l

Unpacking

When unpacking, check to make sure all of the parts listed on the parts list on 

page 7 are included. If any parts are missing or broken, please call Harbor Freight 

Tools at the number on the cover of this manual.

Assembly

The only assembly required is the addition of the 

Adjustment Screw (#6)

 and 

Safety Ring (#20)

Insert the 

1. 

Adjustment Screw (6) 

with the Hex Nut up, through the hole in the 

center of the 

Plain Axle (13)

.

Add (by sliding on) the

2. 

 Safety Ring (20)

 to the 

Adjustment Screw (6) 

before 

continuing through the center hole on the 

Threaded Axle (10)

.

Secure Adjustment Screw (6) with two Nuts (15).

3. 

Operation

Warning:

 MacPherson struts must be removed from the vehicle before attempt-

ing repairs. Make sure to put the struts in a MacPherson Strut Vise prior to 

using the Strut Spring Compressor.

Warning:

  Only use hand tools with the Strut Spring Compressor.  Never use 

any air, electric, or impact tools with this tool.    Only operate this tool with a 

3/4”socket and ratchet, 3/4” combination wrench, or other applicable hand 

tool. Power, air, or electric tools may compress the spring, leading to injury.      

Note:

 The Strut Spring Compressor should be periodically inspected by 

a qualified service technician.

Removing a MacPherson Strut from a vehicle.

Position the strut into a strut vise.

1. 

Shut the vise and tighten.

2. 

Attaching the Spring Compressor

Open the Spring Compressor approximately 8 

3. 

inches. Do not open more than 8” or a long strut 

may slip off of the tool.
Make sure the hex nut on top of the 

4. 

Adjustment 

Screw (#6)

 is facing up.

Before clamping the spring, slip the 

5. 

Safety Block 

(#19) 

over the

 Hook (#5)

 and 

Hook (#7)

 as a 

safety precaution should the strut break loose. 

Center Axis

Figure 1

8” Max.

Summary of Contents for 43753

Page 1: ...can result in serious injury Save this manual Copyright 2000 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or fo...

Page 2: ...n assistant can bring help Keep work area clean 2 Cluttered areas invite injuries Observe work area conditions 3 Don t expose to rain Keep work area well lit Keep children away 4 Children must never b...

Page 3: ...rmed regularly by a qualified technician Capacity 15 Never exceed the recommended capacity springs up to 7 in diameter Only use this tool with MacPherson Struts Never use with high pitched struts Use...

Page 4: ...sure to put the struts in a MacPherson Strut Vise prior to using the Strut Spring Compressor Warning Only use hand tools with the Strut Spring Compressor Never use any air electric or impact tools wit...

Page 5: ...t See service manual 11 Set the spring over the repaired or new strut and re install the rod 12 nut mounting plate and spring seat Loosen the strut spring compressor and remove it 13 Remove the strut...

Page 6: ...wrench while adjusting Repair the cartridge Release and remove the Strut Spring Compressor 6 Note Only compress the spring enough to remove the drive nut Note Remember if the spring doesn t compress...

Page 7: ...AIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTI FIED 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...

Page 8: ...SKU 43753 For technical questions please call 1 800 444 3353 Page 8 Assembly Diagram Hex Nut REV 01e...

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