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Hydraulic Oil Filter - HD 770

Hydraulic Oil Filter - HD 770

High-quality hydraulic oil filter from MANN-FILTER, part number HD 770. This filter insert is desi...

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Hydraulic Oil Filter HD770 Mann 85807055 21967 221174 Genuine Quality Guaranteed

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Product Information

Full details

The MANN-FILTER HD 770 is a high-quality hydraulic oil filter insert designed for industrial and mobile hydraulic systems operating under high-pressure conditions. It provides maximum filtration performance by effectively separating the finest impurities from hydraulic fluid, ensuring trouble-free operation and extending component life. While offering premium filtration, it requires careful installation to maintain its integrity.

All features

Model Part NumberHD 770
BrandMANN-FILTER

Extended Product Information

FAQs

What is the primary function of the MANN-FILTER HD 770?

Its primary function is to remove fine impurities and contaminants from hydraulic fluid, ensuring optimal performance and longevity of hydraulic system components.

Is this filter suitable for high-pressure applications?

Yes, the HD 770 is specifically designed for high-pressure levels, ensuring maximum filtration performance even under demanding conditions.

What are the dimensions of the HD 770 filter insert?

The dimensions are: Height 194 mm, Outer diameter 70 mm, and Inner diameter 37 mm.

How often should the HD 770 filter be replaced?

Replacement intervals vary based on operating conditions and manufacturer recommendations. Consult your equipment's service manual. Generally, it should be replaced when performance degrades or at scheduled maintenance intervals.

Can I use this filter with other brands?

Yes, the HD 770 has numerous cross-references with filters from brands like BALDWIN, DONALDSON, FLEETGUARD, and others. Always verify compatibility with your specific system.

Where can I find the cross-reference part numbers for the HD 770?

A list of common cross-references is provided in the product description and compatibility section of this guide.

What type of systems is this filter best suited for?

It is suitable for operating hydraulics in both industrial and mobile equipment that experience high-pressure levels and require maximum filtration performance.

Troubleshooting

Hydraulic system pressure drops unexpectedly.

Check the filter for blockage or premature clogging. If clogged, replace the filter element (HD 770) and inspect the system for any foreign contaminants.

Visible contamination in hydraulic fluid.

The filter may be saturated or a seal may have failed. Replace the filter element and check all seals and connections. Ensure the correct filter type for the operating pressure is used.

Filter housing leaks after installation.

Ensure the filter element is correctly seated and the housing seals (O-rings) are clean, undamaged, and properly installed. Tighten the housing according to manufacturer specifications.

Reduced hydraulic system efficiency.

A clogged filter can restrict fluid flow. Replace the MANN-FILTER HD 770 and check for other potential restrictions in the system.

Pros and Cons

Pros

  • Ensures maximum filtration performance for cleaner hydraulic fluid.
  • Built to high-quality standards for reliable and long-lasting operation.
  • Suitable for high-pressure applications, offering robust protection.
  • Wide range of cross-references and OEM compatibility simplifies selection.
  • Helps prevent premature wear of hydraulic components through effective contaminant removal.

Cons

  • Requires precise installation as a filter insert.
  • Dimensions need to be verified against the specific hydraulic system requirements.
  • As a filter insert, it's part of a larger filtration system and requires regular maintenance of the housing.

Setup, Compatibility & Care

Setup: The HD 770 is a filter insert and must be installed within a compatible filter housing. Ensure the housing is clean before insertion. Carefully place the new filter element into the housing, ensuring it is seated correctly according to the housing manufacturer's instructions. Secure the housing cap or seal properly to prevent leaks. Always follow the specific service manual for your hydraulic system.

Compatibility: This filter element has the part number HD 770. It is designed to replace original equipment parts from MANITOU (21967, 221174) and SPERRY NEW HOLLAND (85807055). It also cross-references with filters from BALDWIN (PT9248), DONALDSON (P760155), FLEETGUARD (HF7981), HIFI FILTER (SH50715), SF FILTER (HY 9210/1), UFI (25.702.00), and WIX FILTERS (92073E, W02AP292), among others. Always double-check the dimensions (Height 194 mm, Outer diameter 70 mm, Inner diameter 37 mm) against your system's requirements.

Care: Regular inspection and replacement are crucial. The filter should be replaced at intervals recommended by the equipment manufacturer or when performance degradation is noticed. Do not attempt to clean and reuse the filter element. Dispose of used filters properly.

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