JET Tools JLH-160-15 User Manual - Page 13

Timing Marks for Gear Replacement If the gears on the JLH hoist need replacement or removal for any reason, make sure they are re-installed correctly. Figure 12 shows the proper orientation of the timing marks when meshing the gears. Figure 12 Troubleshooting The numbers in parentheses refer to the parts breakdown on the following page. Trouble Probable Cause Remedy* Hoist will not lift (no clicking sound). Pawl (#12) not engaging ratchet disc (#15); possible dirt or foreign material. Clean and lubricate pawl/ratchet disc assemblies. Pawl spring (#11) is damaged. Replace pawl spring. Selector switch spring (#23) is loose or Tighten or replace selector switch damaged. spring. Load slips or drifts while being lowered. Dirt/corrosion/foreign material in hoist components. Inspect and correct problem. Keep hoist clean and lubricated. Brake is slipping. Disc hub (#14) is worn Replace disc hub. Do not overload from long-term use, or is damaged from hoist. overloading or misuse. Hoist will not lower load. The brake has caught. (Hoist was left under load condition for extended period, or was shock-loaded while operating.) Place selector lever in DOWN position and pull hard on the lever handle to reset the brake. Resume operation. Brake components are corroded or damaged. Replace components as needed; keep hoist clean and lubricated. Handwheel will not move in and out. Disc hub (#14) is damaged. Replace disc hub. Hoist will not freewheel. Brake has caught because load chain was pulled too hard. Re-set by rotating handwheel clockwise while pulling down on load chain. Return hoist to freewheel mode and continue. Pull load chain less forcibly. * Any disassembly or repair of the lever hoist should be performed by properly trained personnel. Call JET, or go to jettools.com to find an authorized Service Center nearest you. 13