Included in this Model V12 Service and Parts Manual are
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 Model V12 Sectional Body Directional Control Valve Service and Parts Manual  Included in this Model V12 Service and Parts Manual are: Serviceable Parts for V12 Manually-Operated Control Valves Serviceable Parts for V12 Solenoid-Operated Control Valves. Maximum Operating Pressure: 3000 PSI (207 bar) Minimum Filtration Required: 10 Micron The information in this Service Manual was current at the time of publication. This information is subject to change at any time without notice. Model V12 Service Catalog No. GSD-1125 Revision: 2-09-1999
List of Illustrations 3 TRK-15-XX Stud Kits 4 Section Seal Identification and Section Seal Kits 5 Model V12 Spool and Clevis Identification 6 Procedures for Removing Model V12 Spool Seals 7 Procedures for Installing Model V12 Spool Seals 8 V12P- Inlet Cover Components 9 RCP-15A Relief Cavity Plug 10 Direct Acting Main and Workport Relief Valve Cartridges 11 Pilot-Operated Main and Workport Relief Valve Cartridges 12 V12E- Outlet Cover Components 13 Power Beyond and Closed Center Plugs 14 PC-15D (Solenoid) Pilot Pressure Control Cartridge 15 PC-15E (Solenoid) Pilot Pressure Control Cartridge 16 V12W- (3-Way, 3-Position Low Body Work Sections) 17 V12W- (4-Way, 3-Position Low Body Work Sections) 18 V12W- (4-Way, 3-Position Relief Body Work Sections) 19 V12W- (4-Way, 3-Position Lock Valve Body Work Sections) 20 V12W- (4-Way, 4-Position Float Work Sections) 21 V12W- (NCC) Solenoid – Operated Work Sections 22 V12W- (FDC) Solenoid – Operated Work Sections 23 V12C- Combined Flow Mid-Inlet Section 24 V12S- Split Flow Mid-Inlet Section 25 Selecting Split Flow Mid-Inlet Options 26 785173 Spring Return ‘C’ to Neutral Spool Positioner 27 2- and 3- Position ‘D’ Detented Spool Positioners 28 2-Position ‘D’ Type Detented Spool Positioner 29 785258 2-Position ‘D’ Detented Spool Positioner 30 785086 1-Position ‘E’ and ‘F’ Detented Spool Positioners 31 785087 2-Position ‘G’ Detented Spool Positioner 32 4-Position Float Spool Positioner 33 Spool Biased ‘In’ Positioner – Spool ‘In and Neutral 34 Spool Biased ‘Out’ Positioner – Spool ‘Out and Neutral 35 HRA-15 Hydraulic Remote Actuator Kit 36 ‘NCC’ Solenoid Actuator Assembly 37 ‘FDC’ Solenoid Actuator Assembly 38 Solenoid Cartridge Kits for ‘NCC’ Single Solenoid Style Actuators 39 Solenoid Cartridge Kits for ‘FDC’ Double Solenoid Style Actuators 40 Load (Transition/Reverse Flow) Check 41 CRA-15H Anti-Cavitation Check Plug 42 CRV-15C Relief Valve/Anti-Cavitation Check Cartridge 43 CLV-15E Cylinder Lock Valve Cartridges 44 LVR-15-30 and LVR-15-60 Handle Assemblies 45 LVR-15-HDA and LVR-15-HDS Handle Assemblies 46 Work Port Restrictors 47 Product Warranty, April 1996 48
Figure 1: TRK-15-XX Stud Kits 4 Figure 2: Section Seal Identification 5 Figure 3: Model V12 Spool and Clevis Identification 6 Figure 4: Model V12 Spool Seal Removal 7 Figure 5: Model V12 Spool Seal Installation 8 Figure 6: V12P- Inlet Cover 9 Figure 7: RCP-15A Relief Cavity Plug 10 Figure 8: Direct Acting Main and Workport Relief Valve Cartridges 11 Figure 9: Pilot-Operated Main and Workport Relief Valve Cartridges 12 Figure 10: V12E- Outlet Cover 13 Figure 11: Power Beyond Sleeves and Closed Center Plug 14 Figure 12: PC-15D (Solenoid) Pilot Pressure Control Cartridge 15 Figure 13: PC-15E (Solenoid) Pilot Pressure Control Cartridge 16 Figure 14: V12W- (3-Way, 3-Position Low Body Work Sections) 17 Figure 15: V12W- (4-Way, 3-Position Low Body Work Sections) 18 Figure 16: V12W- (4-Way, 3-Position Relief Body Work Sections) 19 Figure 17: V12W- (4-Way, 3-Position Lock Valve Body Work Sections) 20 Figure 18: V12W- (4-Way, 4-Position Float Work Sections) 21 Figure 19: V12W- (NCC) Solenoid – Operated Work Sections 22 Figure 20: V12W- (FDC) Solenoid – Operated Work Sections 23 Figure 21: V12C- Combined Flow Mid-Inlet Section 24 Figure 22: V12S- Split Flow Mid-Inlet Section 25 Figure 23a: Flow Path for Standard Split Flow Operation 26 Figure 23b: Flow Path for Split Flow with Power Beyond 26 Figure 23c: Flow Path for Split Flow with Closed Center 26 Figure 24: 785173 Spring Return ‘C’ to Neutral Spool Positioner 27 Figure 25: 2- and 3- Position ‘D’ Detented Spool Positioners 28 Figure 26 2-Position ‘D’ Type Detented Spool Positioner 29 Figure 27: 785258 2-Position ‘D’ Detented Spool Positioner 30 Figure 28: 785086 1-Position ‘E’ and ‘F’ Detented Spool Positioners 31 Figure 29: 785087 2-Position ‘G’ Detented Spool Positioner 32 Figure 30: 4-Position Float Spool Positioner 33 Figure 31: Spool Biased ‘In’ Positioner – Spool ‘In and Neutral 34 Figure 32: Spool Biased ‘Out’ Positioner – Spool ‘Out and Neutral 35 Figure 33: HRA-15 Hydraulic Remote Actuator Kit 36 Figure 34: ‘NCC’ Solenoid Actuator Assembly 37 Figure 35: ‘FDC’ Solenoid Actuator Assembly 38 Figure 36: Solenoid Cartridge Kits for ‘NCC’ Single Solenoid Style Actuators 39 Figure 37: Solenoid Cartridge Kits for ‘FDC’ Double Solenoid Style Actuators 40 Figure 38: Load (Transition/Reverse Flow) Check 41 Figure 39: CRA-15H Anti-Cavitation Check Plug 42 Figure 40: CRV-15C Relief Valve/Anti-Cavitation Check Cartridge 43 Figure 41: CLV-15E Cylinder Lock Valve Cartridges 44 Figure 42: LVR-15-30 and LVR-15-60 Handle Assemblies 45 Figure 43: LVR-15-HDA and LVR-15-HDS Handle Assemblies 46 Figure 44: Work Port Restrictors 47
Each TRK-15-XX Stud Kit includes (3) Studs and (6) Nuts.
Figure 2. Section Seal Identification Section Seal Kits
Buna-N seals are standard for all Gresen valve assemblies. Contact the Gresen factory in Minneapolis for optional seals. Section Seal Replacement Precautions
Figure 3. Model V12 Spool and Clevis Identification
Figure 4. Model V12 Spool Seal Removal
Figure 5. Model V12 Spool Seal Installation Model V12 Spool Seal Kits
Buna-N seals are standard for all Gresen valve assemblies. Contact the Gresen factory in Minneapolis for optional seals.
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