252107912 upper hinge pin grease tube for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

- Product Name: Upper Hinge Pin Grease Tube
- Part Number: 252107912
- Applicable Equipment: XCMG ZL50G, ZL50GL Wheel Loader
- Main Material: Oil-resistant high-pressure hose + steel connectors
- Manufacturing Process: Fixed-length cutting, connector crimping, seal inspection, pressure test, visual inspection
- Surface Treatment: Blackening anti-rust treatment for connectors
- Installation Position: Lubricating point of loader upper hinge pin
- Fastening Method: Threaded connection between grease nipple and pin oil port
- Supply Note: Single grease tube assembly supplied; grease nipples and clamps are separately optional parts
- Functions: Deliver grease to the mating surface of hinge pin, lubricate pin and bushing continuously, reduce wear and prevent rust seizure
- Working Conditions: Sand and stone yards, mines, earthwork infrastructure, mixing plants, material transfer yards and other heavy-duty vibrating operation sites

• Tube length, connector angle and thread specification consistent with original parts, good interchangeability, direct installation without on-site bending
• High-pressure oil-resistant hose with excellent flexibility, resistant to cracking and connector separation under hinge swing
• Crimped steel connectors with firm crimping, no oil leakage or pressure loss during greasing
• Blackened anti-rust connectors, resisting mud and water corrosion for longer service life
• Smooth inner bore with low injection resistance for easy and full lubrication
• Independent hose assembly, separate replacement without removing hinge pin, saving maintenance time
• 100% pressure leak test before delivery to eliminate leakage risk and guarantee reliability
• Perfectly matched with upper hinge pin oil passage of ZL50G/ZL50GL and original lubrication accessories

FAQ 

Q1: Can this upper hinge pin grease tube fit ZL50GN loader directly?
A1: Part No.252107912 is specially for ZL50G and ZL50GL. ZL50GN has different hinge lubrication structure. Direct interchange is not recommended. Verify old part number before ordering.

Q2: Can the tube with surface cracks continue to be used?
A2: Cracked hose will leak grease during lubrication and lead to lubrication failure. The pin may seize due to lack of grease, replacement is required immediately.

Q3: Are matching grease nipples included?
A3: Standard package only contains the grease tube assembly. Grease nipples and clamps are optional parts. You can order them separately.

Q4: How to deal with oil leakage at the connector?
A4: Check whether the thread is tightened first. If leakage occurs at the crimp position, the assembly is damaged and needs replacement.

Q5: What should be noted during installation?
A5: Seal the thread with a small amount of PTFE tape. Reserve swing clearance and avoid tensioning the hose. Regularly check aging and connector leakage.