CLS180 Proportional Load Sensing Mobile Valve

Transcription

1 Mobile valves Proportional Load Sensing, Model CLS bar 180 L/min Up to 10 sections Eaton Pro-FX TM Ready CLS180 Proportional Load Sensing Mobile Valve Overhaul manual / Trouble shooting guide

2 Contents 1.0 General Information Inlet Section Inlet assembly Inlet interface Inlet relief valve pressure setting adjustments Inlet Configurations Conversion kit Work Section Work section assembly post comp Identification of RH and LH build Local load sense relief valve option Local load sense relief valve pressure setting Seal kits for different actuations Spool end arrangement Procedure to change type of section build Pilot valves End Covers EH end plate assembly Hyd end plate assembly: Internal & external drain port option Part List Inlet assembly Work section assembly End plate assembly Trouble Shooting EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

3 1.0 General Information CLS180 Load Sense Sectional Mobile Valve Rated pressure Inlet 350 bar (5076 psi) Rated inlet flow Rated workport flow - post compensated Tank port 10 bar (145 psi) 220 lpm (58.1 gpm) 180 lpm ( bar at differential pressure Fluid cleanliness and viscosity See Hydraulic Fluid Recommendations Bulletin Ambient operating temperature range Oil temperature operating range -40 C / 60 C (-40 F / 140 F) -25 C / 80 C (-13 F / 176 F) Construction Sectional Work sections 1-10 Maximum leakage, cylinder workport to tank 12 cc per minute at 100 bar (1450 psi) Port types Inlet ports BSP G1 P&T, G1/4 LS and Pilot Drain SAE -16 P&T, -6 LS and Pilot Drain G3/4 BSP (G1/4 Pilot if Hydraulic) Work Ports SAE, -12 (SAE -6 Pilot if Hydraulic) Work section options Spools Double Acting (4 way) Cylinder Bi-Directional (4 way) Motor, Full Open to Tank in Neutral Actuation Hydraulic with Top Ports Hydraulic with End Ports Hydraulic with top ports and lever override Electrohydraulic with Lever Override Electrohydraulic Only Manual with Enclosed Lever Box Manual with Exposed Spool Connection Manual with Pneumatic Pilot, Pneumatic Ports Downward Manual with Pneumatic Pilot, Pneumatic Top Ports Coil voltages Coil connectors Electrohydraulic interface PWM frequency 12 Volt DC 24 Volt DC Integral Deutsch DT04-2P Amp Jr. Time connector Eaton HFX programmable controllers and Pro-FX application software Hz EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

4 1.0 General Information Operating Principle: CLS180 is a load sensing and flow sharing directional control valve. The flow sharing technology applied to the standard load sensing system characterizes the new CLS180. The valve is completely pressure compensated and guarantees great controllability to all actuations, making work port flow dependent only on the metering area (spool position). When flow saturation occurs the system reacts by implementing an equal reduction of pressure margin across all spools, generating a proportional reduction of work port flow. 2 1 Multi-section: When two or more sections are actuated only one, characterized by the highest pressure (dominant), is involved in the load sense (LS) signal transmission. It works as briefly described in the previous paragraph. The other functions (slaves) become directly dependent on it. The common LS line transfers the information coming from the dominant local compensator to all dependent compensators. Driven by the LS signal, the unbalanced slave compensators activate the pressure compensation creating an artificial pressure drop able to keep pressure margin nominally the same on all the spools. Work port flow becomes only a function of the metering area making the system totally load independent. Flow Sharing function: When saturation occurs the total amount of flow required by actuations is higher than the maximum pump flow rate. When this occurs, system is no longer able to hold nominal margin pressure. The actual margin pressure reduces according to real flow demand. Since all the local compensators have the same LS signal and the same pressure drop is applied to different metering areas, then work port flows are reduced proportionally in order to keep all actuations completely under control. Pump compensator Legend: 1 Inlet line (high pressure) 2 Metering notches 3 Load sensing line 4 Local compensator 5 Metering spool 4 Single section: Coming from the common inlet the main flow, passing across the metering area, reaches the local compensator. Depending on the main spool chosen, the metering area controls the total amount of flow to the work port based on the margin pressures. The load sensing signal is picked up downstream of the local compensator which feeds the common load sensing line. When a single section is actuated, the local compensator fully opens to the left side, reaching its complete balanced position. The control of the LS system is made by the inlet compensator for fixed displacement pump or pump compensator for variable displacement pump. 3 5 T P M LS signal Dump valve LS signal Relief valve LS Full flow relief valve A1 B1 A2 B2 A3 B3 A4 B4 Post local compensator D1 Internal press. reducing valve D2 (drain line) R 4 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

5 1.0 General Information Work Section Flow Path P-A and B-T: B A Spool Stroke 7 mm Work Section Flow Path P-B and A-T : B A Spool Stroke 7 mm EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

6 1.0 General Information Max work port pressure: 350 bar (5075 psi) 40,60,90,120,150 & 180 lpm work port flow Max inlet pressure: 350 bar (5075 psi) Inlet assembly Relief, anti-cav, relief/anti-cav plug or no port machining Integral Deutsch or Integral Amp Jr. connector Manual Override Lever End cover: Hydraulic or Electro-hydraulic 6 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

7 1.0 General Information Sections can be placed in any order Hydraulic Section Manual Section Manual Section (Section color shown for reference only) Hydraulic Section (Section color shown for reference only) Electro-Hydraulic Section EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

8 1.0 General Information Identification of design level: (Please refer to labels on individual inlet/work/end section) ASSEMBLED IN PRODUCT LINE Eaton part number Build date code serial no. Complete model code (wrap text as required) or customer part number with bar code if required B= Latest Design Product Identification Eaton logo is stamped on inlet body as shown below. 8 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

9 2.0 Inlet Section 2.1 Inlet assembly Full flow electric dump valve Torque = Nm HEX 32.0 Plug Torque = Nm HEX 32.0 Full flow relief valve Torque = Nm HEX 32.0 LS electric dump valve Torque = Nm HEX 24.0 Plug Socket Hex 6.0 Torque = Nm Plug Torque = Nm Socket Hex 8.0 Plug Torque = Nm Socket Hex 8.0 LS Relief Valve Torque = Nm HEX 17.0 Plug Torque = Nm HEX 8.0 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

10 2.0 Inlet Section 2.2 Inlet Interface: (This interface kit is also applicable for Work Section interface) Inlet work-section Interface Seal Kit P/N: Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Buna-N) / Nitrile (Buna-N) / Nitrile (Buna-N) / Nitrile (Buna-N) / EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

11 2.0 Inlet Section 2.3 Inlet Relief Valve Pressure Setting Adjustments: Full Flow Relief Valve: Load Sense Relief Valve: Internal Hex 4.0 Screw to adjust pressure setting (Clockwise rotation to increase pressure) Lock Nut 22.0 A/F HEX Hex 3mm (Clockwise rotation to increase pressure) Lock nut hex 8 mm Tightening torque Nm 10.0 A/F HEX 17.0 A/F HEX 32.0 A/F HEX EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

12 2.0 Inlet Section 2.4 Inlet Configurations Closed center: Tank port Pressure port Gauge port Load sense port Open Center: Load Sense Port. Plugged 12 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

13 2.0 Inlet Section 2.5 Conversion Kit: Open Center to Closed Center Conversion Kit P/N: Plug assembly Compensator spool assembly Hole in plug assembly Orifice screw Identification grooves on plug body for easy identification EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

14 2.0 Inlet Section Closed Center to open center conversion kit P/N: (for SAE port option) (for BSP port option) Plug assembly Compensator spool assembly Plug with O-ring Orifice screw No internal machining on plug body No identification grooves on plug body 14 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

15 3.0 Work Section 3.1 Work Section Assembly: Relief/Anticavitation valve Torque = Nm A/F 15 mm Anticavitation valve Torque = Nm A/F 13 mm Plug Torque = Nm A/F 13 mm Port A Port B Relief Valve Torque = Nm A/F 19 mm Torque = Nm Socket Hex 3 mm Pilot Valve Local LS relief valve Torque = Nm A/F 19 mm Remote LS relief adaptor Torque = Nm A/F 19 mm Plug Torque = Nm Socket Hex 8 mm A Anti-Cavitation Fixed setting anti-cavitation valve R Relief/Anti-cav Fixed setting combined valve P Plugged - work port of cavities machined and plugged Fixed setting prearrangement for auxiliary valve N Relief without anticavitaion Fixed setting relief valve Note: Auxiliary valves (R-Relief/Anti-cav) are not field adjustable: Factory settings are available from 40 to 350 bar with a 10 bar step. EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

16 3.0 Work Section 3.2 Identification of LH and RH Build LH Build Port A Port B Manual override handle O-ring interface Port A Port B O-ring interface 16 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

17 3.0 Work Section RH Build Port A Port B Manual override handle O-ring interface Port A Port B O-ring interface EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

18 3.0 Work Section 3.3 Local Load Sense Relief Valve (Option): With LH build Port A Port B Local LS relief valve O-ring interface With RH build# Port A Port B Local LS relief valve O-ring interface Note: # EH with lever over ride actuation sub-assembly needs to be removed for changing local LS relief pressure setting in case of RH build 18 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

19 3.0 Work Section 3.4 Local LS Relief Valve Pressure Setting Screw to adjust pressure setting: 5mm Internal Hex (Clockwise rotation to increase pressure) Lock Nut: 17mm Hex Retainer: 24 mm Hex EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

20 3.0 Work Section 3.5 Actuation and Manual Override Options: Interface seal kit for Electrohydraulic Actuation (spring end): Interface seal kit for Electrohydraulic Actuation (spool end): EH Actuation Interface Seal Kit P/N: Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Buna-N) / Nitrile (Buna-N) / EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

21 3.0 Work Section 3.5.3: Electrohydraulic actuations (Spool side) A) Electrohydraulic with Lever Override 2 1 Interface Seal kit Seal Kit for EH with lever override P/N: Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Quad Ring) Nitrile (Buna-N) / EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

22 3.0 Work Section B) Electrohydraulic with Lever Override & stroke limiter: Seal Nut Part Number: Inter-face Seal kit Seal kit reference P/N: Seal nut for Electrohydraulic with Lever Override & stroke limiter Seal Kit P/N : Ref # Eaton Part # Material / Size Durometer Qty Seal Nut EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

23 3.0 Work Section C) Electrohydraulic without Lever Override: Interface Seal kit D) Electrohydraulic without lever override & stroke limiter: Seal Nut Part Number: A/F 17 mm Torque Nm Interface Seal kit Seal nut for electrohydraulic without lever override & stroke limiter Seal Kit P/N: Ref # Eaton Part # Material / Size Durometer Qty Seal Nut -- 1 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

24 3.0 Work Section 3.5.4: Electrohydraulic actuations (Spring side): A) Electrohydraulic actuation: B) Electrohydraulic actuation with stroke limiter: Interface Seal kit Seal kit reference P/N: Interface Seal kit C) Electrohydraulic with spool position indicator: 1 Interface Seal kit Seal kit for electro-hydraulic actuation with spool position indicator Seal Kit P/N : Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Buna-N) / EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

25 3.0 Work Section Interface seal kit for hydraulic actuation: A) Hydraulic actuation with top port (spool & spring end) B) Hydraulic actuation with end port (spool & spring end) Interface seal kit for hydraulic actuation Seal Kit P/N: Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Buna-N) / Nitrile (Buna-N) / EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

26 3.0 Work Section C) Seal nut for hydraulic actuation with stroke limiter: (spool & spring end) Seal kit reference P/N : Interface seal kit Socket Hex 5 mm A/F 17 mm Torque Nm 26 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

27 3.0 Work Section Manual actuations (spool side): A) Manual with enclosed lever box: B) Manual actuation with exposed spool connection: Seal Kit for manual actuation with enclosed lever box Seal Kit P/N : Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Buna-N) / Seal Kit for manual actuation with exposed spool connection Seal Kit P/N: Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Buna-N) / Wiper Seal 1 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

28 3.0 Work Section Manual actuations (spring side): A) Manual standard spring: B) Manual soft spring: Seal kit reference P/N: Seal kit reference P/N: C) Manual detent in A & B or manual detent in A or manual detent in B: 2 1 Seal Kit for manual actuation with detent (spring end) Seal Kit P/N: Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Buna-N) / Nitrile (Buna-N) / EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

29 3.0 Work Section D) Pneumatic control BSP or pneumatic control NPT Seal Kit for manual actuation with pneumatic control (spring end) Seal Kit P/N : Ref # Eaton Part # Material / Size Durometer Qty Nitrile (Buna-N) / Nitrile (Buna-N) / NBR Compound Nitrile (Buna-N)/ EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

30 3.0 Work Section 3.6 Spool end arrangement: Apply 2 drops of Loctite 242 Torque = Nm 30 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

31 3.0 Work Section 3.7 Procedure to change the bulid of a section from LH to RH or RH to LH build : Work section assembly LH build Work section assembly RH build Spool Joint Main Spool (Does not change the position) Main Spool (Does not change the position) Spool Joint To convert LH to RH build, below procedure is to be followed. Remove actuator end cap assemblies. Remove spool from the section body from the spring end side. It will be observed that the spring sub-assembly will be in assembled condition to the spool. Preferably, it is best to mount the spool into a collet in order to secure it. The spool can also be placed inside a rubber hose and clamped into a vise to avoid damage to the spool diameter. Remove the spool joints from both ends of the spool. It may take considerable torque to overcome the loctite while removing the spool joints. Reinstall the spool joint with the spring assembly onto the opposite ends of the spool. Re-install the spool into the work section. Please note that the spool orientation should be the same and only the spool joint orientation will be swapped. Then reassemble the spring cap actuations by installing them on the opposite section ends. Care must be taken to ensure all cap o-rings are properly installed before attaching the cap to the section housing. Ensure the override pawl engages the spool clevis. Similar procedure can be followed to change from RH build to LH build. EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

32 3.0 Work Section 3.8 Pilot Valves: General data Installation position: Weight: Any 175g Protection class DIN ; IP6k 6/IPX9K Electrical connection: Deutsch connector DT04-2P Min supply voltage: 12VDC/24VDC Supply pressure: 35 ±2 BAR Max supply pressure: 50 BAR Standards cited: ISO: 4406 DIN EN DIN EN DIN DIN SS Usage of dropped down valves: No warranty of valve function can be given if dropped down valves are mounted Varnishing of connector: No warranty of the connector resistance can be given by varnishing the connector Screen function: Specified values refer to clean screens, if more than 50% of the screen is contaminated, a break of the screen can follow. Electrical data Voltage 12V DC 24V DC R20 (Ohm) 4.72 ±5% 20.8 ±5% I (ma) 600 ± ±10 Imax (ma) 1500 ± ±10 Flow measurement P-A Flow (Ipm) Delta P (bar) Inlet (bar) 4 <12 35±2 Internal leakage - 35 bar supply Leakage energized: A-T <150 (mi/min) Leakage de-energized: P-T <30 (mi/min) Temperature operating range Ambient temperature: -30 C to +80 C Fluid temperature: -30 C to +105 Ref: Thomas product specification LHP-39 Note: Pilot valve part numbers are mentioned on work section assembly part list (Section 5.2) Typical performance P-I: Characteristic curve (12V) Druck [bar] UGW 38 32,5 OGW pa-pt 34 pa-pt ungefilt 27,5 Pumpe , , , , , pp [bar] 32 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

33 4.0 End Covers 4.1 EH End Plate Assembly: Plug assembly with filter Torque = Nm Socket Hex 6 mm Torque = Nm Socket Hex 6 mm Side port End port Torque = Nm Socket Hex 6 mm Torque = Nm Socket Hex 8 mm Torque = Nm Socket Hex 6 mm Note: Refer Section For Coversion Between end port to side port option. EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

34 4.0 End Covers 4.2 Hyd End Plate Assembly: Internal and External Drain Port Option Torque = Nm Socket Hex 6 mm Torque = Nm Socket Hex 6 mm Internal Drain Torque = Nm Socket Hex 6 mm Set screw installed to convert from internal to external drain External Drain 34 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

35 5.0 Part List 5.1 Inlet assembly part list: Ref. Description Eaton P/N Qty Note 1 LS pressure relief valve *** 1 Setting range: bar *** 1 Setting range: bar LS relief plug LS plug at LS Dump valve LS electric dump valve For Coil Order Per Ref # Coil-DIN ISO V Coil-DIN ISO V 3 Coil kit Coil-DEUTSCH-12V Coil-DEUTSCH-24V Coil-AMP-12V Coil-AMP-24V 4 Full flow pilot operated pressure relief valve *** 1 Full flow elec dump valve Full flow relief plug assembly *** Pressure setting in bar to be metioned while ordering the valve Notes: 1. Cannot have full flow relief valve and full flow dump valve in the same inlet. EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

36 5.0 Part List 5.2 Work Section Assembly Part List: Work Section Assembly Ref. Description Eaton P/N Qty Notes Spool 40 L/Min Spool 60 L/Min D- Double Acting (4 Way) Spool 90 L/Min Cylinder Spool 120 L/Min Spool 150 L/Min Spool 180 L/Min Spool 40 L/Min Spool 60 L/Min H- Bi-Directional (4 Way) Motor, Full Open to Spool 90 L/Min Tank in Neutral Spool 120 L/Min Spool 150 L/Min Spool 180 L/Min For EH actuation 2 Spool End Kit For hydraulic actuation For manual actuation Hydraulic with Top Ports (BSP-1/4 Port) Hydraulic with Top Ports (SAE-6 Port) Hydraulic with End Ports (BSP-1/4 Port) Hydraulic with End Ports (SAE-6 Port) 3 Actuation Type - Spool / Lever End Hydraulic with stroke limiter (BSP-1/4 Port) Hydraulic with stroke limiter (SAE-6 Port) Electrohydraulic Only (SAE-6 Port) Electrohydraulic Only (BSP 1/4 Port) Electrohydraulic with Lever Override (BSP-1/4 Port) 36 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

37 5.0 Part List Work Section Assembly (Continued) Ref. Description Eaton P/N Qty Notes Electrohydraulic with stroke limiter (BSP-1/4 Port) Actuation Type - Spool / Lever End Actuation Type - Spring Return End Pilot Valve (Proportional Pressure Reducing Valve) 6 Port-A Option Function 7 Port-B Option Function Electrohydraulic with stroke limiter (SAE-6 Port) Electrohydraulic with lever override & stroke limiter Manual with Enclosed Lever Box Manual with Exposed Spool Connection Hydraulic with Top Ports (BSP-1/4 Port) Hydraulic with Top Ports (SAE-6 Port) Hydraulic with End Ports (BSP-1/4 Port) Hydraulic with End Ports (SAE-6 Port) Hydraulic with stroke limiter (BSP-1/4 Port) Hydraulic with stroke limiter (SAE-6 Port) Electrohydraulic actuation (SAE-6 Port) Electrohydraulic actuation (BSP-1/4 Port) EH Actuation with stroke limiter (BSP-1/4 Port) EH Actuation with stroke limiter (SAE-6 Port) EH Spool position indicator (SAE-6 Port) EH Spool position indicator (BSP-1/4 Port) Manual standard spring Manaul Detent in A and B Manaul Detent in A Manaul Detent in B Pneumatic Control (BSP 1/8 ) Pneumatic Control rotated by 180 Deg (BSP 1/8 ) Pneumatic Control (NPT 1/8 ) Pneumatic Control rotated by 180 Deg - (NPT 1/8 ) 308AA00654A 2 Pilot Valve-12V-DEUTSCH ( DT04-2P) 308AA00656A 2 Pilot Valve-24V-DEUTSCH ( DT04-2P) 308AA00680A 2 Pilot Valve-12V-AmpJr ( DT04-2P) 308AA00681A 2 Pilot Valve-24V- AmpJr ( DT04-2P) A- Anticavitation XXX* 1 R-Anticavitation/Relief Function P- Plugged - Work Port Relief Cavities Machined and Plugged A- Anticavitation XXX* 1 R-Anticavitation/Relief Function P- Plugged - Work Port Relief Cavities Machined and Plugged EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

38 5.0 Part List Work Section Assembly (Continued) ** 1 Local LS RV, Bar Local Load Sense Relief Valve ** 1 Local LS RV, Bar ** 1 Local LS RV, Bar Plug Assembly Section Compensator Plug assembly Local Load sense Plug Remote load sense adaptor (BSP-1/8 Port) Remote load sense adaptor (SAE-4 Port) * Pressure setting to be mentioned at XXX Between bar in 10 bar increments ** While ordering, please mention exact pressure setting requirement 5.3 End Plate Assembly Part List: 1 Apply 2 drops of Loctite 242 Reduced Pressure Port R EH End Plate Assembly Ref. Description Eaton P/N Qty 1 Plug S/A with filter screen Compression spring Notes: 1) Side Drain Port Option Shown. To Convert to end drain option exchange plugs at port D1 & D2 as required. 2) External reduced pressure port R is available as shown. Currrently shown it plugged with standard SAE-6 Or ¼ BSP plug as per model code selection Hydraulic/Manual End Plate Assembly Ref. Description Eaton P/N Qty 1 Set Screw Notes: External drain port option shown. To convert to internal drain, item #1 can be ommitted and drain port can be plugged with standard SAE6 Or ¼ BSP plug as per model code selection. 38 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

39 6.0 Trouble Shooting Potential Issue Possible Cause (s) Checkup Remedy External Leakage No movement of any attachment when command signal is given (No Flow through any of the sections) No movement in a particular attachment when command signal is given (no flow through particular section) Interface o-ring failures between a) Inlet and work section b) Adjacent work sections c) Work section and end cap d) End cap and work section a) Low tie rod tightening torque b) Low end cap mounting screw tightening torque c) Low cartridge valve torques Inlet compensator spool stuck open due to contamination Inlet compensator spring break Inlet relief valve issue (spring break or spool stuck open) Incorrect inlet main relief or inlet LS relief setting Pressure Reducing Valve (PRV) spool stuck closed or high leakage between PRV spool and seat (only for electrohydraulic end cap) Pressure Reducing Valve (PRV) spring break (only for electrohydraulic end cover) Filter in PRV valve getting clogged Main spool stuck Main spool mounted backwards Section compensator spool stuck Section compensator orifice clogged due to contamination No electrical signal to EH pilot valve (EH actuation). Incorrect setting of section LS relief valve Loosened adjusting screw of LS relief valve Dis-assemble and inspect for o-ring damage or missing Check tie rod, end cap clamping and cartridge valve torque a) Measure inlet pressure and LS pressure b) Remove and inspect inlet compensator spool and bore c) Measure oil cleanliness level a) Measure inlet pressure and LS pressure b) Remove inlet compensator and inspect spring Measure inlet pressure and LS pressure Measure inlet pressure and LS pressure a) Measure reduced pressure b) Remove PRV and inspect reducing valve spool, poppet and bore c) Measure oil cleanliness level a) Measure reduced pressure b) Remove PRV and inspect reducing valve spring a) Measure reduced pressure b) Remove PRV and inspect the filter c) Measure oil cleanliness a) Measure inlet, work port and load sense pressure b) Remove and inspect spool and bore c) Ensure tie rod torque are not high d) Measure Oil cleanliness level a) Remove main spool and check LS groove location a) Measure inlet, work port and load sense pressure b) Remove and inspect spool and bore c) Measure Oil cleanliness level a) Measure inlet, work port and load sense pressure b) Remove spool c) Measure Oil cleanliness level Verify the pilot valve is receiving electrical signal with proper voltage and current Measure LS pressure and Inlet pressure Measure LS pressure and Inlet pressure Replace damaged/missing o-rings Tighten tie rod, end cap mounting screw and cartridge valve with specified clamping torque a) Clean the spool and bore, if damaged replace the inlet assly b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 Replace the spring if found broken Replace inlet relief valve if found faulty. Adjust the relief setting to required pressure. a) Clean reducing valve spool and bore and if damaged replace b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 If spring found broken replace the PRV assembly a) Replace the plug assembly with filter b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 a) Clean the main spool and bore. If damaged replace the spool and body b) Apply specified tie rod torque c) Ensure oil cleanliness level of 18/16/14 per ISO 4406 a) Ensure LS groove on spool is towards A port side a) Clean the compensator spool and bore. If damaged replace the spool and body b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 a) Replace the orifice b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 Ensure proper electrical signal is available to the pilot valves Adjust the LS relief valve to required pressure and tighten the lock nut Adjust the LS relief valve to required pressure and tighten the lock nut EH pilot valve malfunction (EH actuation) Replace and test with new pilot valve Replace EH pilot valve if found faulty Less pilot pressure supply to actuation (hydraulic actuation) Measure pilot pressure Ensure proper pilot pressure signal is supplied to the actuations EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

40 6.0 Trouble Shooting Potential Issue Possible Cause (s) Checkup Remedy Low attachment speed (low flow) Attachement drops down in neutral condition (No load holding) Inlet comp spring break Incorrect inlet main relief or inlet LS relief setting Incorrect relief/anti cav valve setting Inadequate electrical signal to EH pilot valve (EH actuation). c) Measure inlet pressure and LS pressure d) Remove inlet compensator and inspect spring Measure inlet pressure and LS pressure Measure inlet pressure, work port pressure and LS pressure Verify the pilot valve is receiving electrical signal with proper voltage and current Replace the spring if found broken Adjust the relief setting to required pressure Replace relief/anti cav valve with correct setting Ensure proper electrical signal is available to the pilot valves EH pilot valve malfunction (EH actuation) Replace and test with new pilot valve Replace EH pilot valve if found faulty. Inadequate pilot pressure supply to actuation (hydraulic actuation) In correct stroke limiter setting Pressure Reducing Valve (PRV) spool stuck or high leakage between PRV spool and seat (only for EH end cover) Filter in PRV valve getting clogged Main spool stuck due to contamination Wrong main spool assembled, motor spool instead of cylinder spool Spool wear Leakage through aux valve Incorrect relief/anti cav setting Measure pilot pressure Move the stroke limiter completely out and check the speed a) Measure reduced pressure b) Remove PRV and inspect reducing valve spool, poppet and bore c) Measure oil cleanliness level a) Measure reduced pressure b) Remove PRV and inspect the filter c) Measure oil cleanliness a) Measure inlet, work port and load sense pressure b) Remove and inspect spool and bore c) Measure oil cleanliness level d) Remove the main spool and confirm motor (H) or cylinder spool (D) a) Remove and inspect spool and bore. b) Measure oil cleanliness level a) Remove the aux valve and inspect the seat of the aux valve b) Measure oil cleanliness level a) Measure inlet pressure, work port pressure and LS pressure Ensure proper pilot pressure signal is supplied to the actuations. Adjust the stroke limiter to proper setting a) Clean reducing valve spool and bore and if damaged replace b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 a) Replace the plug assembly with filter b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 a) Clean the main spool and bore. If damaged replace the spool and body b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 c) If wrong spool installed, replace the spool and then tighten the spool ends with specified torque a) Replace the spool if damaged b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 a) Replace the aux valve if the seat is damaged b) Ensure oil cleanliness level of 18/16/14 per ISO 4406 a) Replace relief/anti cav with correct setting 40 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

41 Notes EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

42 Notes 42 EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July 2018

43 Notes EATON CLS180 Proportional Load Sensing Mobile Valve E-VLVM-TT003-E July

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