Operating Instructions
1.Measure the outer diameter of the spring to be compressed and select the correct set of Shoes.
2.Press down on the Release Valve Pedal (6) releasing air pressure to lower the Under Strut Support until the Ram is fully retracted and the Under Strut Support (24) is at its low- est position.
Upper Shoe (9) | Top Cap Nut | Upper Strut Mount |
| Upper |
|
| Spring |
|
| Seat |
|
| Dust |
|
| Cover |
|
| a. If wear or fatigue is found, do not use the |
| Tool. Have the tool replaced or repaired by |
| a qualified technician. |
5. | Fit the strut into the Shoes (28) and ensure |
| that the lower coil used lies behind the inner |
| retaining rim at the back of the Shoe (28). |
| Operate the Foot Pedal (5) to raise the upper |
| coil end into contact with the upper spring |
| seat, ensuring the coil at both ends are se- |
| curely retained by the raised inner and outer |
| rims within the Shoes (28, 28A). |
6. | Wrap one Safety Chain (37) around the por- |
| tion of the spring and strut protruding from |
| the upper Shoe (28) ensuring that the Chain |
| lies above the Shoe. (See Fig. 2.) |
Lower
Spring
Seat
Under
Strut
Ram Support
| Spring |
| |
A | Strut Housing |
|
| Spring |
| Compressed |
B | Lower Strut |
Mount |
7. | Wrap the other Safety Chain around the |
| spring and strut protruding from the lower |
| Shoe ensuring that the Chain lies below the |
| Shoe. |
| a. Fasten each Chain behind the Upright (14) |
| using the attached spring catches. Make |
| sure each Chain is as tight as possible. |
| Do not position the Chain in the coils held |
| between the Shoes (28, 28A). |
8. | When applying compression to the spring, |
| always stand to one side of the unit. |
9. | Gradually compress the spring by pumping |
Fig. 2
3.The upper Shoe (28) should bear down on the first full coil down from the top of the strut. The lower Shoe should be pushing up on the first full coil up from the bottom of the strut. (See Fig. 2.)
a.Measure the distance between these coils and adjust the position of the upper strut support so that the distance between the Shoes is slightly larger than required.
b.Ensure that the Retaining Pins (30) hold- ing the Upper Strut Support (31) are fully inserted and secured with the
c.Use the Foot Pedal (5) to raise the Under
Strut Support (24) to finely adjust the dis- tance between the Shoes.
4.Before compressing, make a visual inspec- tion of the tool to ensure all Retaining Pins are securely positioned and that there is no sign of wear or metal fatigue.
the Foot Pedal (5) or operating the Air Valve |
(1) ensuring that the spring and strut remain |
securely held at all times. |
10. Ensure that the strut and the Upright (14) of |
the compressor are correctly aligned at all |
times during spring compression. |
a. For conical springs, the center line of the |
spring should remain parallel to the com- |
pressor body. |
DANGER! Stop compressing the spring before the coil windings touch. You need only compress the spring until the upper spring seat is free from spring pressure.
11.Before attempting to remove top cap nut on the strut, use a tool or short stick to test if the spring compression has been relieved from the upper spring seat. Do not use your hands or fingers.
12.Harbor Freight Tools recommends the use of properly designed strut tools to remove the top cap nut from the shock absorber piston.
SKU 65549 | For technical questions, please call | Page 6 |
