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Model: YCCH
Dual cushion lock assembly with shuttle
Capacity:
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Model
YCCHLHNAK
Control
Functional Setting Range
Seal Material
Pilot Ratio (4th Letter) of Primary Cartridge
Port and Material Designation
Function
Technical specifications
Modifiers
Ports
- B, B/SPorts C1,C2,V1,V2: 3/8" NPTF; Port T: 1/2" NPTF; Port S: 1/4" NPTF;
- C, C/SPorts C1,C2,V1,V2: 1/2" NPTF; Port T: 1/2" NPTF;
- J, J/SPorts C1,C2,V1,V2: SAE 8; Port S: SAE 4; Port T: SAE 10;
- K, K/SPorts C1,C2,V1,V2: SAE 10; Port T: SAE 10;
- U, U/SPorts C1,C2,V1,V2: 3/8" BSPP; Port T: 1/2" BSPP;
- V, V/SPorts C1,C2,V1,V2: 1/2" BSPP; Port T: 1/2" BSPP;
This valve assembly provides overrunning load-control, load-port relief protection, supplies make-up oil, and flushes hot dirty oil out of the actuator and includes a load sense shuttle for brake release. All oil coming out of the actuator returns to tank through port T.
- The counterbalance valves should be set at 1.3 times the maximum load induced pressure.
- The term cushion in the name Cushion Lock is a misnomer. Because the counterbalance valves play a dual role as load controls and work port reliefs they must be set too high to provide any real cushion. Deceleration can only be achieved by ramping down the input flow.
- This assembly is ideal for applications with long lines to the actuators. Mounting the assembly close to an actuator ensures that cool, clean oil will be supplied to the actuator and that the hot, dirty oil will go out the T port to the tank
- Low pilot ratio counterbalance valves (3:1 vrs 10:1) may be necessary to generate enough pressure to release a brake.
- Hydraulic motors leak. Therefore a mechanical brake is recommended to positively lock any stopped live load.
- These packages are also available as 3 letter manifolds. Look under counterbalance.
- Body TypeLine mount
- Capacity15 gpm
- Mounting Hole Diameter.34 in.
- Mounting Hole DepthThrough
- Mounting Hole Quantity2
Model CAD Files
Click the link of the file format you want to download.
Why doesn't Sun anodize their aluminum bodies?
How big is a drop of hydraulic oil?
Direct acting or pilot operated - what do I use?
- All SAE o-ring porting per ISO 11926. All NPTF porting per ANSI B1.20.1. All BSPP porting parallel thread.
- For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
- Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.
Highlights
Technical Tips
Technical Information
- PartDescriptionQuantity
- 260-010*Seat1
- 340-002*Pipe Plug1
- 800-001-070*Ball1