HY-58 Labor Saving Wrench adopts high efficiency planetary shifting as main drive. It futures small dimension, lightness, durability and large gear ratio and has a large out put torque can be produced by inputing less force. The product is made of high grade alloy steel in the process of fine heat treatment . The outer surface is polished with the plastic spray treatment and has a fine feel. The wrench is widely used to assemble and disassemble the tyres of various heavy trucks. It is a necessity for repairmen or drivers.

Directions

1.put the sleeve onto the square head of the handle end and the rocking bar on the other end

2.When the sleeve is put on the net to be disassembled or fastened ,pay attention to the direction of loosening an tightening . Roll the rocking bar so that the handle is against the side of another bolt tightly.

3.After the nut is unscrewed ,use the long bar to disassemble quickly.(First use the long bar to screw on quickly and then use labour saving wrench instead during tightening.)

Technical parameter

1.Gear ratio 1:55.6.

2.Max safe output torque is 3800N.M(equal to 380 KGF.M).

3.Max output torque for normal dissembling(tightening) is 1200N.M(equal to 40 Kgfapplied to 3-meter-long bar)and the pull force of rocking bar is 18kgf.

4.It takes about six minutes to disassemble(tighten) a tyre.

5.The net weight of the tool is 7.4 kg and the total weight is 8.5kg.

Cautions

1.Tightening nuts by using Model A ,dont use force more than 20kg.When half-round rebound of the rocking bar is felt. It shows that the nut has come to the place. The overforce is likely to damage the nut or the tools.

2.Do not use this tool as a hammer.

3.Do not add force to the rocking bar by using loop bar or hand bar.

4.Special remander: If a greater force is used but the nut will not be unscrewed,make sure that the direction of the nut and that of the rocking bar are correct.