Sinmen Tools

Hydraulic pullers need to be inspected and maintained every six months:
1. Check the meshing and wear of all reducer gears. The pitting damage on the tooth surface should not exceed 30% of the meshing surface, and the depth should not exceed 10% of the original tooth thickness (fixed chord tooth thickness); the percentage of gear tooth thickness wear to the original tooth thickness should not exceed 15%~25%; check the condition of the bearings; replace the lubricating oil.

Hydraulic pullers need to be inspected and maintained every six months:

• 1. Check the meshing and wear of all reducer gears. The pitting damage on the tooth surface should not exceed 30% of the meshing surface, and the depth should not exceed 10% of the original tooth thickness (fixed chord tooth thickness); the percentage of gear tooth thickness wear to the original tooth thickness should not exceed 15%~25%; check the condition of the bearings; replace the lubricating oil.

• 2. Check the condition of large and small wheels, lubricate the wheel bearings, and eliminate the phenomenon of rail gnawing.

• 3. Check whether the main welds of the main beam and end beam have open welding and rust. The rust should not exceed 10% of the original plate thickness. Whether the main load-bearing parts have fatigue cracks; whether various guardrails and brackets are intact; check the bolts of the main beam and end beam and tighten them once.

• 4. Check the deformation of the main beam. Check the condition of the trolley track. When unloaded, the main beam's downward disturbance should not exceed 1/2000 of its span; the main beam's horizontal inward bending should not exceed 1/1500 of the measured length; the trolley's track should not be stuck, and the wear on the top and side surfaces of the track (single side) should not exceed 3mm.

• 5. Check the drum's condition. The wear on the drum wall should not exceed 20% of the original wall thickness, and the rope groove peak should not be sharp.

• 6. Tighten all connecting bolts and fast