252109217 pin for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Cotter Pin for Bucket Tooth Lock Pin
Part No.: 252109217
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Matching Parts: 252109216 tooth lock pin, 252109215 tooth sleeve, 252109208 rock bucket
Material: Spring steel wire
Process: Bend forming, hot-dip galvanized anti-corrosion treatment
Matching parts: Bucket tooth lock pin
Installation: Insert into pin hole and spread legs for locking
Working Condition: Ore quarrying, crushed stone transfer, hard rock compacted muck heavy-load operation
Inspection Items: Wire diameter check, length measurement, ductility bending test, galvanized coating visual inspection

Applicable Scenarios

It is used with the 252109208 welded sleeve-tooth rock bucket on XCMG ZL50G and ZL50GL loaders, widely used in quarries, crushing plants and rock excavation sites for limestone, granite and boulders. It is exclusive for this series of tooth lock pins and shall not be mixed with other pins or hydraulic fittings.

- OEM size, wire diameter and length match 252109216 pin perfectly for secure locking
- Hot-dip galvanized coating provides corrosion resistance in muddy and wet quarry conditions
- Spring steel wire delivers good ductility and resists breakage during bending
- Low-cost compact safety part, ideal for bulk stocking
- Simple structure, fast on-site replacement to cut downtime
- Stable batch toughness, avoiding mass brittle fracture
- Matched with sleeve, lock pin and teeth for unified spare part management

FAQ 

Q：Can this cotter pin be used on other pins?
A：Mixing is not recommended. Wire diameter and length are customized for 252109216 pin. Mismatched size will cause loose locking or failed assembly.

Q：Can a bent cotter pin be reused?
A：Reuse is not allowed. Bending causes metal fatigue and micro-cracks. It may snap suddenly under quarry vibration. Replace it every time the lock pin is removed.

Q：What causes frequent cotter pin breakage?
A：Common causes are repeated reuse, excessive play of the lock pin, insufficient bending during installation and corrosion embrittlement. Check the sleeve and pin wear at the same time.

Q：What is the correct installation standard?
A：Pass the pin fully through the hole, spread both legs firmly against the pin surface. Avoid insufficient bending or over-bending which breaks the legs. Ensure no interference with the tooth sleeve.

Q：Can rusty cotter pins still be installed?
A：Discard heavily rusted and flaking ones. Rust reduces ductility and leads to easy fracture. Slight surface rust can be cleaned, but intact galvanized stock is preferred.

Q：Can I weld the cotter pin onto the lock pin?
A：Welding is forbidden. Heat treatment of the lock pin will be damaged, and welded pins cannot be disassembled for maintenance, bringing serious safety risks.

Q：What to check on delivery inspection?
A：Verify part number, check galvanized coating, sample wire size and length, perform bend test and inspect for cracks and burrs.