diagrama hidraulico 226B

9RENR4869-02 July 2008 21 236/246/252/262 BASIC COMPONENT SYMBOLS 20 6 10 11 Speed Sensing Pressure Tap Forward Pilot Port 4 FLUID POWER SYMBOLS 5 Speed Sensing Valve MAIN AUX. PUMP or MOTOR Forward Pilot Port LINE RESTRICTION (FIXED) RESTRICTION PUMP: VARIABLE and PRESSURE COMPENSATED 2-SECTION PUMP CC Neutral Adjustment Screw PRESSURE COMPENSATION LINE RESTRICTION (VARIABLE) SPRING (ADJUSTABLE) VARIABILITY 15 16 13 14 CONTROL VALVES SPRING FLUID CONDITIONER TWO POSITION ONE POSITION VALVE PORTS TWO-WAY THREE POSITION CHECK VALVES AB P T SHIFTED POSITION P T NORMAL POSITION 6 FOUR-WAY THREE-WAY CONTROL VALVES AB 216/226/232/242 ATTACHMENT LINE RESTRICTION VARIABLE and PRESSURE COMPENSATED VALVES VALVE ENVELOPES Neutral Adjustment Screw HYDRAULIC PNEUMATIC ENERGY TRIANGLES SHUTTLE SPRING LOADED BASIC SYMBOL INFINITE POSITION PILOT CONTROLLED FLUID STORAGE RESERVOIRS Right Forward Crossover Relief and Makeup Valve (MB2) 25 VENTED 24 3 2 22 1 8 7 26 17 18 Left Forward Crossover Relief and Makeup Valve (MB1) 12 23 31 32 Charge Relief Valve Charge Pressure Port (G1) 216B, 216B2, 226B, 226B2, 236B, 236B2, 246B, 232B, 232B2, 242B, 242B2, 252B, 252B2 & 262B Skid Steer Loaders Hydraulic System Right Reverse Crossover EE Relief and Makeup Valve (MA1) Left Reverse Crossover Relief and Makeup Valve (MA1) 236/246/252/262 19 18 9 6 16 13 14 10 21 8 Forward Travel Drive Loop Pressure Port (MB1) Maximum Displacement Stop Maximum Displacement Stop DD Reverse Pilot Port Forward Travel Drive Loop Pressure Port (MB2) Reverse Pilot Port Case Drain Port Drive Forward Travel Loop Port FF 216B: RLL1-6799 216B2: RLL6800-UP 226B: MJH1-10574 226B2: MJH10575-UP PRESSURE 236B2: HEN6750-UP 246B: PAT1-UP 232B: SCH1-2474 232B2: SCH2475-UP Reverse Travel Drive Loop Port SOLENOID or MANUAL SOLENOID 242B2: BXM4225-UP 6 25 24 15 20 3 17 1 7 2 22 Reverse Travel Drive Loop Port 252B: SCP1-4599 252B2: SCP4600-UP 236B: HEN1-6749 262B: PDT1-UP GENERAL MANUAL DETENT THERMAL PEDAL SIMPLIFIED CROSSING AND JOINING LINES SINGLE ACTING HYDRAULIC MOTORS VARIABLE DISPLACEMENT NON-COMPENSATED UNIDIRECTIONAL UNIDIRECTIONAL BIDIRECTIONAL BIDIRECTIONAL DOUBLE ACTING INTERNAL PASSAGEWAYS VARIABLE DISPLACEMENT NON-COMPENSATED FIXED DISPLACEMENT INTERNAL SUPPLY PRESSURE COMPLETE HYDRAULIC AND PNEUMATIC CYLINDERS LINES JOINING LINES CROSSING GAS CHARGED SPRING REMOTE SUPPLY PRESSURE INTERNAL RETURN ACCUMULATORS Reverse Travel Drive Loop Pressure Port (MA2) PUSH BUTTON PILOT CONTROL SYMBOLS RELEASED PRESSURE FIXED DISPLACEMENT FLOW IN ONE DIRECTION MACHINE COMPONENT LOCATIONS HYDROSTATIC DRIVE PUMP TWO POSITION THREE POSITION INFINITE POSITIONING PARALLEL FLOW CROSS FLOW FLOW ALLOWED IN EITHER DIRECTION Printed in U.S.A. © 2008 Caterpillar All Rights Reserved 26 23 31 32 SERVO SOLENOID and PILOT or MANUAL MANUAL SHUTOFF PUSH-PULL LEVER 242B: BXM1-4224 11 12 BIDIRECTIONAL MANUAL CONTROL SYMBOLS Reverse Travel Drive HH Loop Pressure Port (MA1) GG UNIDIRECTIONAL SOLENOID and PILOT HYDRAULIC PUMPS Forward Travel Drive Loop Port 216/226/232/242 FLOW COMBINATION CONTROLS SPRING LOADED 5 RETURN BELOW FLUID LEVEL ROTATING SHAFTS TEMPERATURE EXTERNAL RETURN 4 RETURN ABOVE FLUID LEVEL PRESSURIZED MEASUREMENT 2 Component Locations 149-0686 32 E-3 Cooler As - Radiator (216/232) Cooler As - Radiator (226/242) Cooler As - Radiator (236/246/252/262) 280-8309 280-8310 280-8312 Pump GP - Imp & Charge (216/226/232/242) Pump GP - Imp & Charge (236/246/252/262) 4 F-1 Screen 195-6768 23 F-3 Solenoid - Control Valve (1&2) 185-4254 31 E-4 Coupling - Female 193-8335 13 G-3 Switch As - Back Up Alarm 192-0836 21 E-9 Coupling - Male 193-8334 14 G-3 Tank GP - Hydraulic 204-1491 3 E-1 , E-2 Cylinder Gp - Hydraulic Coupler 192-2640 24 F-5 , F-6 Valve - Check 123-4750 22 C-8 Cylinder Gp - Lift Lt. Hand Cylinder Gp - Lift Lt. Hand Cylinder Gp - Lift Lt. Hand Cylinder Gp - Lift Lt. Hand (216/226) (232/242) (236/246) (252/262) 230-3683 230-3703 230-3685 230-3705 Valve Gp - Ball 191-9783 19 G-6 Cylinder Gp - Lift Rt. Hand Cylinder Gp - Lift Rt. Hand Cylinder Gp - Lift Rt. Hand Cylinder Gp - Lift Rt. Hand (216/226) (232/242) (236/246) (252/262) 230-3693 230-3703 230-3695 230-3705 17 G-4 Cylinder Gp - Tilt Lt.. Hand (216/226/232/242) 230-3684 Cylinder Gp - Tilt Lt.. Hand (236/246/252/262) 230-3687 16 G-4 Cylinder Gp - Tilt Rt. Hand (216/226/232/242) Cylinder Gp - Tilt Rt. Hand (236/246/252/262) 230-3694 230-3697 15 G-4 Valve Gp - Float Detent Magnet Handle As - A1 & A2 Handle As - A1 & A2 Handle As - A1 & A2 Proportional Pin - Spring - Slott Filter Gp - Oil 223-9974 6 F-2 Valve Gp - Hydraulic Coupler Manifold As - Drain Manifold 218-5560 7 E-5 Motor Gp - A/C Compressor 218-6840 26 E-1 , F-1 Motor Gp - Fan Motor Gp - Fan Motor Gp - Fan Motor Gp - Fan 216-6179 230-3727 225-9260 216-6193 Valve Gp - Inline Self Level Raise Valve Gp - Inline Self Level Raise Valve Gp - Inline Self Level Raise Valve Gp - Inline Self Level Raise 5 Motor Gp - (Single Speed) (216/226/232/242) Motor Gp - (Single Speed) (236/246/252/262) Motor Gp - (Two Speed) (236/246/252/262) 280-7854 280-7856 280-7858 8 C,D-6 , C,D-8 C,D-6 , C,D-8 B,C-2 , B,C-4 Pump GP - (Single Speed) (216/232) Pump GP - (Single Speed) (226/242) Pump GP - (Two Speed) (236/246/252/262) 289-6340 289-6342 280-7858 2 B,C-6 , B,C-8 B,C-6 , B,C-8 A,B-1 , A,B-4 (216/232) (226/242) (236/252) (246/262) 18 G-4 Valve Gp - Control Valve Gp - Control Valve Gp - Control Valve Gp - Control Valve Gp - Control Valve Gp - Control (216) (226) (232) (242) (236/246) (252/262) (216/226) (232/242) (236/246) (252/262) 269-9427 238-7642 1 B-1 , C-5 216-6166 216-6167 216-6168 191-9686 216-6169 216-6170 12 299-9119 218-6118 223-3725 215-8307 117-8683 11 209-0640 25 F-5,6 224-9408 223-8408 224-9418 223-8418 20 G-7 31 Electrical Symbols Table Tap Locations Pressure, Sampling, and Sensor Tap Number AA E,F-3 , E,F-5 Description Hydraulic Symbols (Electrical) Schematic Location Main Worktool System Pressure 2 A1 SOLENOID P978-GN L998-OR F-5 BB SOS F-2 CC Signal Pressure D-7 DD Main System Pressure (Pump 1 Forward) EE Charge Pressure B-3, C-7 FF Main System Pressure (Pump 2 Forward) B-3 , C-7 GG Main System Pressure (Pump 2 Reverse) A-2 , B-7 HH Main System Pressure (Pump 1 Reverse) A-3 , B-8 G Transducer (Fluid) 10 Valve Gp - Brake (Single Speed) Valve Gp - Brake (Two Speed) 208-5681 222-3692 9 Generator Electric Motor F-8 Pressure Switch (Adjustable) Pressure Switch Electrical Wire Temperature Switch Electrical Symbols (Electrical) F-1 , F-2 299-9116 218-6117 218-6118 223-3725 117-8683 Transducer (Gas / Air) 1 AA Valve Gp - S-Turn Resolver Block Handle As - Control Flow Handle As - Horn & Control Flow Handle As - Horn & Control Flow Pin - Spring - Slott M B-3 , C-7 Implement & Charge Pump (1), Hydrostatic Pump (2), Implement Control Valve (12), A1 & A2 Solenoids (31), and Main Work Tool Pressure Tap (AA) F-9 12 T Pressure Symbol D-8 C-3 Temperature Symbol Level Symbol Flow Symbol Wire Number Identification Codes IMP PILOT SOL P988-OR 975-WH Electrical Schematic Example TRAVEL SOL H416-GN 975-WH SPEED SOL P981-PU L999-GN Hydraulic Schematic Example Current Standard Current Standard 20 DVTR XRMTL 2x F905-YL 2x 200-BK Harness identification code This example indicates wire 135 in harness "AG". Wire Circuit Number Identification 10 Wire Color 325-AG135 PK-14 325-PK Circuit Identification Number BACKUP PRESS SW 120-YL 321-BR Wire Color Wire Gauge Previous Standard DETENT COIL P988-OR 975-WH 11 Wire Color Wire 9 Inline Self Level Valve - Raise (20) 325-PK-14 B Circuit Number Identification (EXAMPLE VALVE) Travel Pilot Valve (10) Single Speed Valve (9) Implement Pilot Valve (11) COUPLER SOL 779-WH 2x K927-BU 780-PU COUPLER SOL 779-WH 2x K927-BU 780-PU BB A/C SOLENOID 513-OR 200-BK Related Manuals Description Media Number Parts Manual 19 Skid Steer Loaders 216B, 226B, 232B & 242B SEBP3770 Skid Steer Loaders 236B, 246B, 252B & 262B SEBP3769 Machine System 25 Specifications 216B, 226B, 232B & 242B 5 19 25 RENR4897 Specifications 236B, 246B, 252B & 262B RENR4865 Testing and Adjusting 236B, 246B, 252B & 262B RENR4867 Schematic: (Electrical System) Hydraulic Fan Motor (5) & SOS Port (BB) Manual Lower Ball Valve (19) & Quick Coupler Valve (25) Locations shown are for 216B, 226B, 232B and 242B. Manual Lower Ball Valve (19) & Quick Coupler Valve (25) Locations shown are for 236B, 246B, 252B and 262B. Motor Gp A/C (26) RENR4895 Testing and Adjusting 216B, 226B, 232B & 242B Electrical System 26 A Wire Gauge RENR6419 (Dimensions: 39 inches x 28 inches) Accumulator Description A2 SOLENOID P979-YL L998-OR Schematic Location Schematic Location Description 30 Page, Machine Location Machine Location RENR4869-02 Part Number Part Number Refer to the appropriate Service Manual for Troubleshooting.TWO SPEED 293-6591(236/246/252/262) MB C R A B L Z TO CHARGE FILTER L TO DRAIN MANIFOLD A MB1 (Dimensions: 39 inches x 28 inches) Z B 30 Page.LIFT RIGHT HAND 230-3693 (216/226) 230-3703 (232/242) 230-3695 (236/246) 230-3705 (252/262) G VALVE GP . 262B. (Charge Supply) Supply Line.SLOTT IMPLEMENT PILOT VALVE 5 6 CYLINDER GP . 242B. Specifications and Systems Operations 9 8 7 6 5 4 3 2 1 . RENR4869-02 CC B FWD PF PF M T HYDRAULIC CIRCUIT COLOR DESCRIPTIONS Pump Output. Lift Cylinder Control Circuit. 252B2.SINGLE SPEED 280-7854 (216/226/232/242) 280-7856 (236/246/252/262) B FF DD MB2 A CHECK VALVE 123-4750 TO IMPLEMENT VALVE T P MOTOR . (Implement Supply) Pump Output. Coupler Cylinder Control Cicuit. Sampling. Two Speed Control Circuit. Tilt Cylinder Control Circuit. 226B. Auxiliary Tool Control Circuit. 236B.9 8 299-9116 VALVE GP (S-TURN RESOLVER BLOCK CONFIG WITHOUT SWITCHES) 218-6117 HANDLE AS (HORN & NO C1 & C2) 218-6118 HANDLE AS (HORN & CONTINUOUS FLOW) 223-3725 HANDLE AS (HORN & CONTINUOUS FLOW) 117-8683 PIN .SINGLE SPEED 280-7854 (216/226/232/242) 280-7856 (236/246/252/262) FLUSHING TO DRAIN MANIFOLD FLUSHING VALVE GP . 252B. Drive Pilot Control Circuit.LIFT LEFT HAND 230-3683 (216/226) 230-3703 (232/242) 230-3685 (236/246) 230-3705 (252/262) A B CYLINDER GP . 236B2.SPRING . (Left Hydrostatic) Pump Output.C INLINE SELF LEVEL VALVE .BALL 191-9783 DRIVE PILOT VALVE IMPLEMENT PILOT VALVE NEUTRAL NEUTRAL REVERSE NEUTRAL FORWARD LEFT RIGHT 3 LIFT CYLINDERS TILT CYLINDERS G D 3 2 4 T C T VALVE GP . Parking Brake Control Circuit.TWO SPEED 280-7858 (236/246/252/262) FWD FWD IMPLEMENT / CHARGE PUMP 269-9427 (216/226/232/242) 238-7642 (236/246/252/262) PF PF LEFT MOTOR TO DRIVE PILOT M TO DRAIN MANIFOLD TO IMPLEMENT VALVE B LF X3 X4 RF MA1 MA2 HH X4 RR R T1 MG A B RIGHT MOTOR FF DD MB T LR C EE Y G1 GB R A SPEED SENSING X3 GG FWD TO FAN MOTOR MOTOR . 242B2. A LR LF X3 X4 RF RR TO HYDRAULIC TANK X4 X3 HYDROSTATIC PUMP 289-6351 (236/246/252/262) LINE PATTERNS Pressure Line MA MA Pilot / Load Sensing Pressure Drain / Return Lines HH GG TO DRIVE JOYSTICK TO DRIVE JOYSTICK Component Group A TWO SPEED OPTION (236 / 246 /252 & 262) Attachment Air Line THIS SCHEMATIC IS FOR THE 216B. Drain / Return Line.Raise) CALLOUTS YY Taps (Pressure.Sensor) by letter 52 Components by number PART #: 218-6462-06 Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral. 232B.HYDRAULIC 204-1491 HP DRAIN MANIFOLD 218-5560 D R A I N RJ T CO D D 208-5681 VALVE -SGL SPD PARKING BRAKE A B RIGHT MOTOR LEFT MOTOR T1 MG A C EE B Y G1 G B R A TO DRAIN MANIFOLD HYDROSTATIC PUMP 289-6340 (216/232) 289-6342 (226/242) SPEED SENSING MOTOR GP .SLOTT DRIVE PILOT VALVE 7 299-9119 VALVE GP BASIC -B (FLOAT DETENT MAGNET) 218-6118 HANDLE AS (A1 & A2 BUTTON) 223-3725 HANDLE AS (A1 & A2 BUTTON) 215-8307 HANDLE AS (ROLLER / A1 & A2 PROP BUTTON) 117-8683 PIN . 226B2. 262B2 SKID STEER LOADERS (Single Self-Level .RAISE 224-9408 (216/226) 223-8408 (232/242) 224-9418 (236/246) 223-8418 (252/262) 1A T 2 1 3 1B 2A 2B 3A SOS/ DIAGNOSTIC PORT 3B FAN MOTOR RELIEF BB VALVE GP.SPRING . 232B2. Implement Pilot Control Circuit.DIVERTER .TILT LEFT HAND 230-3684 (216/226/232/242) 230-3687 (236/246/252/262) NEUTRAL RACK DUMP 4 T P A2 C F A B L AUX RELIEF P CYLINDER GP HYDRAULIC COUPLER 192-2640 AA F C S1 E D MAIN RELIEF S2 A1 VALVE GP HYDRAULIC COUPLER 233-7128 MOTOR GP A/C COMPRESSOR 218-6840 C P T G F C D E P T E ACCUMULATOR 149-0686 SOLENOID (A1 & A2) 185-4254 ML PRESSURE SWITCH OPTIONAL BACK-UP ALARM 192-0836 MR E BAFFLE CI TANK GP .IMPLEMENT 216-6166 (216) 216-6167 (226) 216-6168 (232) 191-9686 (242) 216-6169 (236/246) 216-6170 (252/262) COUPLER P P 4 DEMAND FAN MOTOR RELIEF SCREEN 195-6768 C 1 DEMAND FAN 269-9467 (226/242/246/262) MOTOR GP-FAN 216-6179 (216/232) 230-3727 (226/242) 225-9260 (236/252) 216-6193 (246/262) FILTER GP OIL 223-9974 COUPLING MALE 193-8334 COUPLING FEMALE 193-8335 F COOLER AS RADIATOR 280-8309 (216/232) 280-8310 (226/242) 280-8312 (236/246/252/262) AUXILIARY TOOLS C 1 CYLINDER GP . 216B2. (Right Hydrostatic) Pump Output.TILT RIGHT HAND 230-3694 (216/226/232/242) 230-3697 (236/246/252/262) RAISE LOWER 2 CYLINDER GP .