07010-00110 0701000110 HNBR PU FKM Graphite Infused PTFE Multi-Material Composite Oil Seal Kit for Bulldozer Hydraulic Tank Valve Complete Servicing

1. Quick Details of  seal 07010-00110:

2. 07010-00110  picture:

3. Service part number :

4. FAQ

Q: What clear color and structural visual differences allow maintenance technicians to quickly identify each component inside this hydraulic tank valve seal kit?
A: HNBR overflow spool and drain piston main seals are matte jet black with multi-lip labyrinth sealing structure, the contact lip surface undergoes nano mirror precision polishing without micro burrs or cyclic liquid abrasion scratches. Rectangular flat PU buffer rings are pale apricot yellow with exclusive flat rectangular shock absorption outline, visually distinguishable from circular, oval and arc buffer rings used on accumulators, gear pumps and pilot valve assemblies. FKM static O-rings are dark maroon brown with uniform medium circular cross-section, no shrinkage or permanent deformation after long-term oil soaking storage. Graphite-infused PTFE anti-extrusion rings are light ash gray with evenly scattered fine graphite powder across the flat surface, easy to separate from off-white carbon-filled PTFE rings applied to narrow-gap pump and motor components. The lightweight dust wiper ring is thin black with single fine scraping lip, dedicated to blocking tiny silt particles floating in the hydraulic tank from entering narrow valve spool gaps. Each accessory is laser printed with clear hydraulic tank overflow valve matching dimension marks on the surface for rapid sorting and matching during on-site assembly.

Q: What wide temperature range and intermittent liquid pressure working conditions can this four-material composite seal kit sustain for long-term stable continuous operation?
A: This integrated oil seal kit can steadily bear sustained long-term static liquid pressure up to 485 bar, and withstand repeated instantaneous backflow peak impact pressure up to 545 bar without extrusion failure of sealing components. HNBR and PU components retain stable elastic recovery and cyclic sealing performance within -38°C ~ +122°C, fully adapting to sub-zero frozen mountain construction and long-term outdoor parking in winter. FKM O-rings can operate reliably within -26°C ~ +148°C, perfectly matching the high-temperature hydraulic oil storage state of non-stop full-load earthmoving in summer. Graphite-infused PTFE backup rings will not soften or deform under thousands of intermittent spool sliding friction and persistent high-temperature oil immersion, maintaining consistent anti-leakage protective performance through all seasonal construction environments.

Q: What hidden hydraulic tank system malfunctions and corresponding financial losses will customers face if they select low-grade inferior seal kits instead of this complete multi-material composite set?
A: Cheap inferior seal kits only utilize recycled low-grade ordinary NBR raw materials, without matching rectangular flat PU buffer rings and graphite-infused PTFE anti-extrusion protective layers. After thousands of liquid level pressure fluctuations and long-term static oil corrosion, the multi-lip spool sealing lip will fatigue and wear rapidly, triggering internal tank oil bypass and continuous slow external oil seepage of the overflow & drain valve assembly. The bulldozer will exhibit unstable hydraulic oil liquid level, frequent tank overflow oil loss, abnormal hydraulic system pressure fluctuation and obvious low-frequency oil flow vibration noise during long-hour pushing operation. Worn rubber and plastic debris will fall into the hydraulic oil tank, pollute the whole hydraulic oil circuit, scratch the precision polished overflow spool and valve body inner hole, requiring costly full replacement of integral metal tank valve core components and full hydraulic oil change. Meanwhile, persistent slow oil seepage increases daily hydraulic oil consumption costs, and prolonged equipment shutdown will delay overall construction project schedules, bringing extra labor rental and operation loss expenses for customers.

Q: What detailed standardized installation operation specifications and strictly prohibited operations should maintenance staff follow to extend the maximum service life of this 07010-00110 hydraulic tank overflow & drain valve seal kit?
A: First, use ultra-fine water sandpaper to polish the overflow spool outer groove, valve body inner hole and static sealing mounting flat surfaces, thoroughly clear old seal residues, metal micro burrs, floating silt and oil sludge mixed abrasive impurities. Second, evenly coat all sealing components with brand-new clean anti-wear hydraulic oil for lubrication; thick grease mixed with metal iron filings is strictly forbidden, as hard micro particles will scratch the HNBR multi-lip labyrinth sealing lip during intermittent spool sliding. Third, install every spool seal in the designated fixed orientation: the sharp multi-lip sealing side must face the internal hydraulic oil tank cavity side, reversed installation will directly cause continuous slow oil seepage after assembly completion. Fourth, lay the graphite-infused PTFE backup ring completely flat without bending, folding or micro warping before fitting the main HNBR overflow spool seal into the valve groove. Fifth, after finishing full seal assembly, manually push the overflow spool back and forth dozens of cycles at low liquid pressure to inspect all sealing positions for oil seepage before reinstalling the tank overflow valve onto the bulldozer hydraulic oil tank and putting the machine back into full-load earthmoving production.

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