39805 Heavy‑Duty Crankshaft Oil Seal Repair Kit for Crane Engine Crankshaft System Maintenance

1. Quick Details of  seal 39805:

2. 39805 picture:

3. Service part number :

4. FAQ

Q: What special material performance does oil seal kit part number 39805 possess?
A: Part number 39805 adopts PTFE sealing lip and phosphate‑treated carbon steel shell. This material combination delivers outstanding high‑temperature resistance and low‑friction property, maintaining stable sealing performance under long‑time engine continuous operation and crankshaft high‑speed rotation.

Q: What visual characteristics do seal assemblies of part number 39805 show?
A: For part number 39805, the sealing lip presents off‑white smooth surface, and the metal shell shows uniform matte dark‑grey anti‑corrosion layer without extra paint or secondary spraying processing.

Q: Where is this oil seal kit installed on crane?
A: This seal kit is assembled at the rear end of engine crankshaft, fitted between rotating crankshaft and stationary engine flywheel housing.

Q: What core practical functions can this oil seal kit achieve?
A: It locks engine lubricating oil inside crankcase cavity, and prevents external dust, moisture and tiny impurity particles from penetrating into engine internal crankshaft and bearing assemblies.

Q: What practical performance advantages does Redicoat treatment bring for steel shell?
A: This special surface treatment improves shell fitting performance and rust‑proof capacity, adapting to dusty quarry sites with mud and alternating humidity conditions.

Q: What warehouse storage tips for unopened seal kits?
A: Keep in cool dry indoor zone. Avoid heavy stacking extrusion, sharp scratches and long‑time exposure to heat sources and ultraviolet rays.

Q: What practical working sign tells technicians to replace seals promptly?
A: Gradual grease seepage mixed with street sand and dust particles around brush‑drive housing indicates seal abrasion and gradual aging performance drop.

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