Hydraulic HFK08 Cartridge Assembly

HFK08 is available in two styles: in-line and in-tank. Both feature a cast aluminum head and steel body for maximum strength and durability. Its single, center retention bolt simplifies servicing. A wider range of filter media is available, as are fluoroelastomer seals.

Features

• Strong, durable cast aluminum head and steel body construction
• Flow is from inside to outside
• Fluorocarbon seals available
• Visual service indicator built into head
• Working pressure to: 24.1 bar / 350 psi 
• Rated static burst to: 34.5 bar / 500 psi
• Flow range to: 1135 lpm / 300 gpm
• Porting size options: 
  • 3" NPT
  • SAE-20 o-ring
• Bypass ratings of:  1.7 bar / 25 psi

Benefits

• Rugged and reliable construction 
• Available as in-line or in-tank

Applications

• Fluid conditioning systems
• Lube oil systems
• Return lines
• Side loop systems
• Suction lines

Available Media Types

• Donaldson exclusive Synteq™ – synthetic fiber media for greater filtration efficiency and higher dust-holding capacity
• Wire mesh
• Many different efficiency grades from which to choose

This servicing information is provided as a best practices guide. It is not intended to replace or supersede the service instructions supplied by your engine or vehicle manufacturer.

Cartridge Servicing

1. Check the filter service indicator
   Check to see that the OEM specified service interval has been reached or that the service indicator shows that the filter is due for servicing.
   
   
2. Turn system off and release pressure
   Ensure that the hydraulic system is turned off.
   Check that there is no pressure present.
   
   
3. Unscrew the cover retention bolt and remove cover
   
   
4. Remove the used filter and gasket, if applicable
   Properly dispose of the cartridge according to local regulations.
   
   
5. Clean out the housing seal area and cap
   Clean out any sediment from the inside of the filter housing.
   
   
6. Inspect the new filter cartridge for damage
   Check the new filter you will be installing for any shipping and handling damage.
   
   
7. Lubricate seals, gaskets and threads. Install new cartridge
   Lubricate the o-rings, gaskets, housing seals and threads with clean system oil.
   Install filter into the housing.
   
   
8. Align threads. Spin filter until gasket contacts
   Fit the housing to the filter head as instructions on the housing.
   
   
9. Hand tighten the filter
   Tighten per the guidance of the icons which appear on the filter housing.
   Do not over-tighten.
   
   
10. Bleed the system and check for leaks