Cushion lock assembly with shuttle and anti-cavitation checks

Function

Function for YCCK
Port Designators [ + ]
Modifiers Ports
B, B/S Port S: 1/4" NPTF; Ports V1 & V2: 3/8" NPTF; Ports T1 & T2: 1/2" NPTF;
C, C/S Port S: 1/4" NPTF; Ports V1 & V2: 1/2" NPTF; Ports T1 & T2: 1/2" NPTF;
J, J/S Port S: SAE 4; Ports V1 & V2: SAE 8; Ports T1 & T2: SAE 10;
K, K/S Port S: SAE 4; Ports V1 & V2: SAE 10; Ports T1 & T2: SAE 10;
Technical Features [ + ]

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.
  • 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.
Technical Data [ + ]
Body Type Motor mountMotor mount
Interface Eaton/Char-Lynn H & SEaton/Char-Lynn H & S
Capacity 15 gpm60 L/min.
Mounting Hole Diameter .34 in.8.6 mm
Mounting Hole Depth ThroughThrough
Mounting Hole Quantity 44
FAQs [ + ]

There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

Notes [ + ]
  • 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.
Additional Resources [ + ]