The utility model discloses an overhaul device and hang equipment of examining, including platform, support and belt cleaning device, wherein, the platform mainly plays the effect of supporting its upper -part, the support sets up on the platform, and it is used for hoisting to be provided with on the support waits to overhaul the hoist of equipment, belt cleaning device includes oil pump and shower nozzle, and the shower nozzle sets up in support upper portion, and the oil pump passes through oil pipe with the shower nozzle and is connected, overhaul the in -process, on -load tap -changer is hoist to hoist through overhauing the device, the qualified insulating oil of the shower nozzle pump sending of oil pump on to the support sprays on -load tap -changer's grease chamber and core and washes, thus, through with belt cleaning device and hoist integration on same platform, when overhauing, only need carry an equipment can realize lifting by crane and washing to on -load tap -changer, the problem of the multiple equipment of portable not when overhauing the on -load tap -changer who keeps away from the road is solved, the easy access personnel carry, help going on smoothly of the work of examining and repairing, the efficiency of maintenance work is improved.