Manual - JET Tools

The load chain supplied withyour JET lever hoist is designed,manufactured, and tested for proper fit anddurability. If chain should ever needreplacing, for your own safety use factoryreplacement chain only. Use of other thanfactory replacement chain may causeserious injury and/or damage to the leverhoist.Never extend load chain by welding a secondpiece to the original.Inspecting HooksIt is important to check top and bottom hooks forproper opening and other signs of deformationor damage. Replace a hook immediately if anyof the following problems are identified:• The safety latch no longer contacts the hookopening.• The vertical angle at the neck of the hookreaches 10° (see Figure 3).• Chemical corrosion or cracks on the hook.• Excessive wear on the inside surface.• The throat opening has enlarged. (See page12 for the maximum allowable limits for thethroat opening.)Do not attempt repair of ahook by heat treating, bending or attachinganything by welding. Such procedures willweaken and may cause failure of the hook.Figure 3Other Inspections1. Check for appropriate clicking sounds: Withthe selector lever in UP position, there willbe a clicking sound when the lever handle isrotated in either direction. When the selectorlever is in DOWN position, there will be aclicking sound only when the lever handle isratcheted back into position but not as theload is lowered. If these sounds are notpresent, or if irregular clicking noisesdevelop, do not use the hoist – have itinspected and repaired by an authorizedservice center.2. If the lever hoist has not been used for anextended period of time, check for properoperation before putting into service.3. The brake mechanism must be kept cleanand free from dirt, water, and oil. Neverallow oil to penetrate the brakingmechanism. The brake should not slip whileusing the hoist.8