BOB CAT 262 C

KE

NR

511

7-0

5 V

OL

1 o

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Pa

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ime

ns

ion

s:

39

in

ch

es

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Hydraulic Symbols (Electrical)

Electrical Symbols Table

325-AG135 PK-14

Circuit IdentificationNumber

Wire Color Wire Gauge

Harness identification codeThis example indicateswire 135 in harness "AG".

325-PK-14

Wire Gauge

Wire Color

Circuit Number Identification

Wire Number Identification Codes

Current Standard

Previous Standard

Electrical Schematic Example Hydraulic Schematic Example

325-PK

Wire ColorCircuit Number Identification

B A

Wire

Wire

(EXAMPLE VALVE)

Current Standard

Transducer(Fluid)

Transducer(Gas / Air)

G

Generator

Electrical WirePressure Switch

MElectric Motor

Pressure Switch (Adjustable)

Temperature Switch

PressureSymbol

TemperatureSymbol

LevelSymbol

FlowSymbol

Electrical Symbols (Electrical)

ONE POSITION TWO POSITION THREE POSITION

VENTED PRESSURIZED RETURN ABOVE FLUID LEVEL RETURN BELOW FLUID LEVEL

LINES CROSSING LINES JOINING

TWO-WAY THREE-WAY FOUR-WAY

SPRING CONTROL VALVES RESTRICTION LINE RESTRICTION(FIXED)

2-SECTION PUMP

MAIN AUX.

SPRING(ADJUSTABLE)

VARIABILITY LINE RESTRICTION(VARIABLE)

LINE RESTRICTIONVARIABLE and PRESSURE

COMPENSATED

PRESSURECOMPENSATION

PUMP: VARIABLE andPRESSURE COMPENSATED

ENERGY TRIANGLESHYDRAULIC PNEUMATIC

MEASUREMENT

PRESSURE TEMPERATURE FLOW

ROTATING SHAFTS

UNIDIRECTIONAL BIDIRECTIONAL

PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING

MANUAL CONTROL SYMBOLS

HYDRAULIC MOTORS

FIXEDDISPLACEMENT

VARIABLE DISPLACEMENTNON-COMPENSATED

UNIDIRECTIONAL

BIDIRECTIONAL

HYDRAULIC PUMPS

FLUID STORAGE RESERVOIRS

CROSSING AND JOINING LINES

VALVE ENVELOPES VALVE PORTS

BASIC COMPONENT SYMBOLS

FLUID CONDITIONERPUMP or MOTOR

FLUID POWER SYMBOLS

FIXEDDISPLACEMENT


UNIDIRECTIONAL

BIDIRECTIONAL

VALVES

PILOT CONTROL SYMBOLSRELEASED PRESSURE

EXTERNAL RETURN INTERNAL RETURN

REMOTE SUPPLY PRESSURE

SIMPLIFIED COMPLETE INTERNALSUPPLY PRESSURE

ACCUMULATORS

SPRING LOADED GAS CHARGED

SOLENOID or MANUAL

SOLENOID and PILOT

SOLENOID and PILOT or MANUAL

COMBINATION CONTROLS

SOLENOID SERVO THERMAL DETENT

HYDRAULIC AND PNEUMATIC CYLINDERS

DOUBLE ACTINGSINGLE ACTING

BASICSYMBOL

SPRINGLOADED

CHECK VALVES

TWOPOSITION

INFINITEPOSITIONING

FLOW IN ONEDIRECTION

FLOW ALLOWED INEITHER DIRECTION

THREEPOSITION

CROSSFLOW

PARALLELFLOW

INTERNAL PASSAGEWAYS

NORMAL POSITION

A B

P T

A B

P TSHIFTED POSITION INFINITE POSITION

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOTCONTROLLED

T

Volume 1 of 2: Standard Flow with ATAAC and Demand Fan

KENR5117-05January 2012

246C, 256C, 262C, 262C2, and 272C

Hydraulic System246C:JAY1-UP

256C:DWS1-UP

262C:MST1-UP

272C:RED1-UP

Skid Steer Loader

2012 CaterpillarAll Rights Reserved

Printed in U.S.A.

262C2:TMW1-UP

PISTON PUMP (HYDROSTATIC)

AIR-TO-AIR AFTERCOOLER SYSTEMATAAC (IF EQUIPPED)

COMPONENT LOCATIONS

PRESSURE TAPS - HYSTAT PUMP

DEMAND FAN MOTOR AND HYDRAULIC OIL FILTER

IMPLEMENT VALVE - (STANDARD)

(A) Control Valve (work tool)(B) Solenoid valve for the auxiliary function(C) Solenoid valve for the tilt function(D) Solenoid valve for the lift function(E) Load check valve for the auxiliary control valve(F) Load check valve for the tilt control valve

(G) Load check valve for the lift control valve(H) Outlet(J) Inlet(K) Relief valve - lift cylinder head end.(L) Relief Valve - tilt cylinder head end.(M) Relief Valve - auxiliary valve B port.

(N) Relief Valve for the rod end of the tilt cylinder(P) Solenoid valve for the lift function(Q) Solenoid valve for the tilt function(R) Solenoid valve for the auxiliary function(S) Main relief valve for the work tool hydraulic system

11

Gear Pump (Hydrostatic System)

Piston Pump (Work Tool)

Gear Pump (Charge Oil)

Gear Pump (Aftercooler)

N P

M L

A

B

C

D E F GH

J

K

AR

Q

P

BC

D NM

L

K

S

E F

G

H

J

12

TANK

Hydraulic Tank Filler Cap Hydraulic Tank Sight Gauge

MA MD

MB MC

Parking Brake Hose Assembly

BB 63Hydraulic tank filler cap

Hydraulic tank sight gauge

Oil temperaturesensor

7

Differential pressure Sensor

EE

PISTON MOTORS

27 28

42630

1

42630

42630

21

22

QUICK COUPLER AND COUPLER CYLINDERS

IMPLEMENT PUMP AND CHARGE PUMP

22

18

22

21

21

21

15

16

15-16

13-14

13-14

18 2728 31

28 31

18 27 287

11

11

17

17

3 426 30 29

8 12

293

4 9 1019 26 30

20

12 1920

7

17

23-258-10

5 - 6

1 - 2

1 - 2

5 - 623-25

(A) Rear pump - right hand side drive motor(B) Rear pump displacement control(C) Forward solenoid on the Rear pump(D) Port C(E) Port B

(F) Port E(G) Reverse solenoid on the Front pump(H) Front pump displacement control(J) Front pump - left side drive motor(K) Input shaft

(L) Port A(M) Port D(N) Fwd solenoid - Front pump(P) Rev solenoid - Rear pump

Gear Motor (Aftercooler)

Relief Valve

Tap LocationsPressure, Sampling, and Sensor

TapNumber Description

BB SOS

MC Main System Pressure (Pump 1 Forward)

EE Charge Pressure

MB Main System Pressure (Pump 2 Forward)MA Main System Pressure (Pump 2 Reverse)MD Main System Pressure (Pump 1 Reverse)

PO Pilot Oil Pressure

246/256 262 272

1 PUMP GP - IMPLEMENT/ CHARGE PUMPPUMP GP - IMPLEMENT/ CHARGE PUMP (EU)258-2553258-3260

258-2553258-3260

2 PUMP GP - IMPLEMENT/ CHARGE / ATAAC PUMP PUMP GP - IMPLEMENT/ CHARGE / ATAAC PUMP (EU)258-3464258-3520

3 TANK GP - TANK 258-2831 258-2831 258-28314 PUMP GP - HYSTAT PUMP 258-2404 258-2404 258-24045 COOLER ASSEMBLY 361-4660 361-4660 361-46606 MOTOR GP - DEMAND FAN MOTOR 258-2577 258-2577 258-25777 FILTER GP - OIL FILTER 223-9974 223-9974 223-99748 MANIFOLD ASSEMBLY - BYPASS CHECK 258-2589 258-2589 258-25899 DISPLACEMENT ACCUMULATOR 193-0447 193-0447 193-044710 VALVE GP - PILOT SHUTOFF VALVE 274-8563 274-8563 274-856311 MOTOR GP - ATAAC FAN MOTOR 278-872012 VALVE GP - STANDARD IMPLEMENT VALVE 336-1322 336-1324 336-132413 COUPLING (FEMALE) 193-8335 193-8335 193-833514 COUPLING (MALE) 193-8334 193-8334 193-833415 CYLINDER GP - TILT CYLINDER (RIGHT HAND) 258-2514 258-2514 258-251416 CYLINDER GP - TILT CYLINDER (LEFT HAND) 258-2515 258-2515 258-251517 CYLINDER GP - LIFT CYLINDERS 258-2512 258-2516 258-251618 MOTOR GP - SINGLE SPEED MOTOR 258-2442 258-2442 258-260519 VALVE GP - MANUAL BALL VALVE 112-1817 112-1817 112-181720 VALVE GP - SINGLE SELF LEVEL VALVE 258-2801 258-2802 258-280221 CYLINDER GP - QUICK COUPLER 192-2640 192-2640 192-264022 VALVE GP - QUICK COUPLER 291-0010 291-0010 291-001023 VALVE GP - RIDE CONTROL 307-2275 307-2275 307-227524 ACCUMULATOR - RIDE CONTROL 307-6504 307-6504 307-650425 VALVE GP - PRE CHARGE 307-2276 307-2276 307-2276

26 PUMP GP - HYSTAT PUMP 258-2404 258-2404 258-240427 MOTOR GP - 2 SPEED MOTOR (RIGHT HAND) 258-2521 258-2521 258-283628 MOTOR GP - 2 SPEED MOTOR (LEFT HAND) 258-2520 258-2520 258-283529 VALVE GP - 2 SPEED VALVE 274-8564 274-8564 274-8564

30 PUMP GP - HYSTAT PUMP 289-6362 289-6362 289-6362

31 MOTOR GP - HYSTAT MOTOR 285-2605 285-2605 285-2605

COMPONENT LIST - (STANDARD)

TWO SPEED OPTION

XDP OPTION

MODELITEM NUMBER NAME

32 VALVE GP - CHECK 304-6756 304-6756 304-6756

ADDITIONAL

32

32

LEFTRIGHT LEFTRIGHT

18 1831 31

KE

NR

511

7-0

5 V

OL

1 o

f 2

30

Pa

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, (D

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s:

39

in

ch

es

x 2

8 i

nc

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LINE PATTERNS

Drain / Return Lines

Component Group

Pilot / Load Sensing Pressure

Pressure Line

Attachment

Air Line

CALLOUTS

Taps (Pressure, Sampling,Sensor) by letter

Components by number

YY

52

DRAIN / RETURN LINE

HYDRAULIC CIRCUIT COLOR DESCRIPTIONSIMPLEMENT PUMP CIRCUIT

STEERING CIRCUIT

PILOT SUPPLY CIRCUITCHARGE PUMP CIRCUITCHARGE PUMP AND ATAAC FAN PUMP CIRCUITSUPPLY LINE

AUXILIARY TOOLS CIRCUITLIFT CYLINDER CIRCUIT

CONTROL COUPLING CIRCUITBASIC CYLINDER CIRCUIT

TILT CYLINDER CIRCUIT

TRAVEL CONTROL CIRCUITTWO SPEED CONTROL VALVE CIRCUIT

Components are shown installed on a fully operable machine with the key and engine off, transmission shifterin neutral and with parking brake set.Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.

246C, 256C, 262C, 262C2, AND 272C SKID STEER LOADER HYDRAULIC SYSTEMVOLUME 1 of 2: STANDARD FLOW WITH ATAAC AND DEMAND FAN

PART NUMBER: 258-3995, CHANGE: 06, VERSION: -MEDIA NUMBER: KENR5117-05

A

B

C

D

E

F

G

H

I

1234567891013

A

B

C

D

E

F

G

H

I

1234567891013

1112

1112

AUXILIARY TOOLS

AB

CD

GS B

L

S B

MBBAX7M3DCMC

L3

MAEMD

B3B2

S1 S2

B1

C2C1

T P

1A 1B 2A 2B 1C 2C

PILOT

TP

B B B

AAA

R

LI

X

L

R

X

I

H R

T

ACC

ACC

M

MB

MD MA

MC

PO

D M3 X7 A B

E

C

X

Y I

R

A

R

A

I Y

X

TWO SPEED OPTION

M

MAMD

MC MB

CHARGE SUPPLYFROM HYD FILTER

CHARGE SUPPLYTO PILOT SHUTOFF

D M3 X7 A B

E

C

XDP OPTION

M

MAMD

MBMC

AA

BB

EE

EEEE

AB C

B

C

A

D

D

CHARGE SUPPLY TO PILOT SHUTOFF

A

B C

E


D

SINGLE SPEED OPTION

E

258-2553258-3260

STANDARD:EU:

258-3464258-3520

STANDARD:EU:

258-2831

278-8720

258-2577

223-9974

291-0010

192-2640

258-2589

361-4660

336-1322336-1324

246/256:262/272:

193-8335 193-8334

258-2514258-2515258-2512258-2516

246/256:262/272:

258-2801258-2802

246/256:262/272:

112-1817

304-6756

307-6504

307-2276

307-2275

258-2520258-2835

258-2521258-2836

258-2404

274-8564

285-2605

289-6362

193-0447

274-8563

258-2442258-2605

246/256/262:272:

258-2404

(1) PUMP GP - IMPLEMENT/CHARGE

(2) PUMP GP - IMPLEMENT/CHARGE/ATAAC

(3) TANK GP

(11) MOTOR GPATAAC FAN

(6) MOTOR GPDEMAND FAN

(7) FILTER GP - OIL

(22) VALVE GPQUICK COUPLER

(21) CYLINDER GPQUICK COUPLER

(8) MANIFOLD ASBYPASS CHECK

(5) COOLER ASSEMBLY

(12) VALVE GP - STANDARD IMPLEMENT

(13) COUPLINGFEMALE

(14) COUPLINGMALE

(15) CYLINDER GPTILT (RIGHT HAND)

(16) CYLINDER GPTILT (LEFT HAND)

(17) CYLINDER GP - LIFT

(20) VALVE GP - SINGLE SELF LEVEL

(19) VALVE GPMANUAL BALL

(32) VALVE GPCHECK

(24) ACCUMULATORRIDE CONTROL

(25) VALVE GPPRECHARGE

(23) VALVE GPRIDE CONTROL

(28) MOTOR GP 2 SPEED (LEFT HAND)

(27) MOTOR GP 2 SPEED (RIGHT HAND)

(26) PUMP GPHYSTAT

(29) VALVE GP2 SPEED

(31) MOTOR GPHYSTAT

(30) PUMP GPHYSTAT

(9) ACCUMULATORDISPLACEMENT

(10) VALVE GPPILOT SHUTOFF

(18) MOTOR GPSINGLE SPEED

(4) PUMP GPHYSTAT

246/256:262/272:

246/256/262:272:

KE

NR

511

7-0

5 V

OL

2 o

f 2

30

Pa

ge

, (D

ime

ns

ion

s:

39

in

ch

es

x 2

8 i

nc

he

s)

Hydraulic Symbols (Electrical)

Electrical Symbols Table

325-AG135 PK-14

Circuit IdentificationNumber

Wire Color Wire Gauge

Harness identification codeThis example indicateswire 135 in harness "AG".

325-PK-14

Wire Gauge

Wire Color

Circuit Number Identification

Wire Number Identification Codes

Current Standard

Previous Standard

Electrical Schematic Example Hydraulic Schematic Example

325-PK

Wire ColorCircuit Number Identification

B A

Wire

Wire

(EXAMPLE VALVE)

Current Standard

Transducer(Fluid)

Transducer(Gas / Air)

G

Generator

Electrical WirePressure Switch

MElectric Motor

Pressure Switch (Adjustable)

Temperature Switch

PressureSymbol

TemperatureSymbol

LevelSymbol

FlowSymbol

Electrical Symbols (Electrical)

ONE POSITION TWO POSITION THREE POSITION

VENTED PRESSURIZED RETURN ABOVE FLUID LEVEL RETURN BELOW FLUID LEVEL

LINES CROSSING LINES JOINING

TWO-WAY THREE-WAY FOUR-WAY

SPRING CONTROL VALVES RESTRICTION LINE RESTRICTION(FIXED)

2-SECTION PUMP

MAIN AUX.

SPRING(ADJUSTABLE)

VARIABILITY LINE RESTRICTION(VARIABLE)

LINE RESTRICTIONVARIABLE and PRESSURE

COMPENSATED

PRESSURECOMPENSATION

PUMP: VARIABLE andPRESSURE COMPENSATED

ENERGY TRIANGLESHYDRAULIC PNEUMATIC

MEASUREMENT

PRESSURE TEMPERATURE FLOW

ROTATING SHAFTS

UNIDIRECTIONAL BIDIRECTIONAL

PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING

MANUAL CONTROL SYMBOLS

HYDRAULIC MOTORS

FIXEDDISPLACEMENT


UNIDIRECTIONAL

BIDIRECTIONAL

HYDRAULIC PUMPS

FLUID STORAGE RESERVOIRS

CROSSING AND JOINING LINES

VALVE ENVELOPES VALVE PORTS

BASIC COMPONENT SYMBOLS

FLUID CONDITIONERPUMP or MOTOR

FLUID POWER SYMBOLS

FIXEDDISPLACEMENT


UNIDIRECTIONAL

BIDIRECTIONAL

VALVES

PILOT CONTROL SYMBOLSRELEASED PRESSURE

EXTERNAL RETURN INTERNAL RETURN

REMOTE SUPPLY PRESSURE

SIMPLIFIED COMPLETE INTERNALSUPPLY PRESSURE

ACCUMULATORS

SPRING LOADED GAS CHARGED

SOLENOID or MANUAL

SOLENOID and PILOT

SOLENOID and PILOT or MANUAL

COMBINATION CONTROLS

SOLENOID SERVO THERMAL DETENT

HYDRAULIC AND PNEUMATIC CYLINDERS

DOUBLE ACTINGSINGLE ACTING

BASICSYMBOL

SPRINGLOADED

CHECK VALVES

TWOPOSITION

INFINITEPOSITIONING

FLOW IN ONEDIRECTION

FLOW ALLOWED INEITHER DIRECTION

THREEPOSITION

CROSSFLOW

PARALLELFLOW

INTERNAL PASSAGEWAYS

NORMAL POSITION

A B

P T

A B

P TSHIFTED POSITION INFINITE POSITION

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOTCONTROLLED

T

Volume 2 of 2: XPS High Flow

KENR5117-05January 2012

246C, 256C, 262C, 262C2, and 272C

Hydraulic System246C:JAY1-UP

256C:DWS1-UP

262C:MST1-UP

262C2:TMW1-UP

Skid Steer Loader

2012 CaterpillarAll Rights Reserved

Printed in U.S.A.

272C:RED1-UP

246/256 262 2721 ACCUMULATOR - IMPLEMENT VALVE CHARGE2 ACCUMULATOR - RIDE CONTROL3 COOLER ASSEMBLY4 COUPLING (FEMALE)5 COUPLING (FEMALE)6 COUPLING (MALE)7 COUPLING (MALE)8 COUPLING (MALE)9 CYLINDER GP - LIFT 258-2512

10 CYLINDER GP - QUICK COUPLER11 CYLINDER GP - TILT (LEFT HAND)12 CYLINDER GP - TILT (RIGHT HAND)13 FILTER GP - OIL14 MANIFOLD ASSEMBLY - BYPASS CHECK15 MOTOR GP - 2 SPEED (LEFT HAND) 258-283516 MOTOR GP - 2 SPEED (RIGHT HAND) 258-283617 MOTOR GP - ATAAC FAN 258-292618 MOTOR GP - BETA SINGLE SPEED 258-260519 MOTOR GP - DEMAND FAN20 MOTOR GP - HYSTAT21 ORIFICE

PUMP GP - CHARGE AND ATAAC 258-3465PUMP GP - CHARGE AND ATAAC (EU) 258-3521PUMP GP - CHARGEPUMP GP - CHARGE (EU)

24 PUMP GP - HYSTAT25 PUMP GP - IMPLEMENT26 PUMP GP - SSL DRIVE27 TANK GP28 VALVE GP - 2 SPEED29 VALVE GP - CHECK30 VALVE GP - CHECK31 VALVE GP - MANUAL BALL32 VALVE GP - PILOT SHUTOFF33 VALVE GP - QUICK COUPLER

34 VALVE GP - RIDE CONTROL ACCUMULATOR PRECHARGE35 VALVE GP - RIDE CONTROL36 VALVE GP - SINGLE SELF LEVEL 258-280137 VALVE GP - XPS IMPLEMENT

307-2275258-2802

336-1323

6V-8627

112-1817274-8563291-0010

307-2276

258-2831274-8564304-6756314-2403

289-6362258-2554258-2404

22

23

258-2577285-2605

258-2555258-3261

258-2520258-2521

258-2442

192-2640

223-9974

193-0447

308-0421

258-2515258-2514

307-6504258-3457218-5841229-5471218-5840229-5468229-5473

258-2516

COMPONENT LIST - XPS HIGH FLOWMODELDESCRIPTIONSCHEMATIC LOCATION

PISTON PUMP (HYDROSTATIC)

AIR-TO-AIR AFTERCOOLER SYSTEMATAAC (IF EQUIPPED)

PRESSURE TAPS - HYSTAT PUMP

DEMAND FAN MOTOR AND HYDRAULIC OIL FILTER

IMPLEMENT VALVE - (XPS)

(A) Control Valve (work tool)(B) Solenoid Valve for the auxiliary function(C) Solenoid Valve for the tilt function(D) Solenoid Valve for the lift function(E) Solenoid Valve for the secondaryauxiliary function(F) Isolator Compensator Assembly for the auxiliary function

(G) Isolator Compensator Assembly for the tilt cylinders(H) Isolator Compensator Assembly for the lift cylinders(I) Isolator Compensator Assembly for the secondary auxiliary function(J) Relief Valve for the auxiliary function(K) Relief Valve for the tilt cylinders

(L) Relief Valve for the secondary auxiliary function(M) Relief Valve for the tilt cylinders(N) Solenoid Valve for the secondary auxiliary function(O) Solenoid Valve for the lift function(P) Solenoid Valve for the tilt function

17

Gear Pump (Hydrostatic System)

Piston Pump (Work Tool)

Gear Pump (Charge Oil)

Gear Pump (Aftercooler)

N P

M L

A

B

C

D E F GH

J

K

AQ

P

O

B

C

D

37

TANK

PISTON MOTORS

24 26

25

IMPLEMENT PUMP AND CHARGE PUMP

33

10

QUICK COUPLER AND COUPLER CYLINDERS

(A) Rear pump - right hand side drive motor(B) Rear pump displacement control(C) Forward solenoid on the Rear pump(D) Port C(E) Port B

(F) Port E(G) Reverse solenoid on the Front pump(H) Front pump displacement control(J) Front pump - left side drive motor(K) Input shaft

(L) Port A(M) Port D(N) Fwd solenoid - Front pump(P) Rev solenoid - Rear pump

Gear Motor (Aftercooler)

Relief Valve

Tap LocationsPressure, Sampling, and Sensor

TapNumber Description

AA Load SenseBB SOS

MC Main System Pressure (Pump 1 Forward)

EE Charge Pressure

MB Main System Pressure (Pump 2 Forward)MA Main System Pressure (Pump 2 Reverse)MD Main System Pressure (Pump 1 Reverse)

PO Pilot Oil Pressure

N E

F

G

H

I

J

K

L

M

23XPS Pressure Adjustment

AA

Margin Pressure Adjustment

24 26

33

2

33

10

10

10

12

11

2 1518 21

15 18

13

17

17

9

924 26 27 28

2827

1 24 2631 32

29

13

9

35

22 23 25 1630

11 12

4 5 67 8

14 2935 36

3437

3 19

3 19

COMPONENT LOCATIONS

22 23 251 2 3132

1434 3736

2 1621 30

18

4 57 8

6

CC Implement Pump Pressure

Hydraulic Tank Filler Cap Hydraulic Tank Sight Gauge

27Hydraulic tank filler cap

Hydraulic tank sight gauge

Oil temperaturesensor

BB 19

13

Differential pressure Sensor

MA MD

MB MC

Parking Brake Hose Assembly

EE

2624

2624

18 18

LEFTRIGHT LEFTRIGHT

20 1516 20

KE

NR

511

7-0

5 V

OL

2 o

f 2

30

Pa

ge

, (D

ime

ns

ion

s:

39

in

ch

es

x 2

8 i

nc

he

s)

LINE PATTERNS

Drain / Return Lines

Component Group

Pilot / Load Sensing Pressure

Pressure Line

Attachment

Air Line

CALLOUTS

Taps (Pressure, Sampling,Sensor) by letter

Components by number

YY

52

DRAIN / RETURN LINE

HYDRAULIC CIRCUIT COLOR DESCRIPTIONSIMPLEMENT PUMP CIRCUIT

STEERING CIRCUIT

PILOT SUPPLY CIRCUITCHARGE PUMP CIRCUITCHARGE PUMP AND ATAAC FAN PUMP CIRCUITSUPPLY LINE

AUXILIARY TOOLS CIRCUITLIFT CYLINDER CIRCUIT

CONTROL COUPLING CIRCUITQUICK COUPLER CYLINDER CIRCUIT

TILT CYLINDER CIRCUITLOAD SENSE CIRCUIT

TRAVEL CONTROL CIRCUITTWO SPEED CONTROL VALVE CIRCUIT

Components are shown installed on a fully operable machine with the key and engine off, transmission shifterin neutral and with parking brake set.Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.

246C, 256C, 262C, 262C2, AND 272C SKID STEER LOADER HYDRAULIC SYSTEMVOLUME 2 of 2: XPS HIGH FLOW

PART NUMBER: 258-3995, CHANGE: 06, VERSION: -MEDIA NUMBER: KENR5117-05

A

B

C

D

E

F

G

H

I

1234567891013

A

B

C

D

E

F

G

H

I

1234567891013

1112

1112

AUXILIARY TOOLS

CONTROL

A

B

CD

G

S B

L

S B

BAX7M3DC

L3

E

B2B1

S1 S2S

B X

C2C1

T P

1A 1B 2A 2B3A 3B 4A 4B

PILOT

T

P

B B B B

AAAA

R

LI

X

L

R

X

I

H R

T

ACC

ACC

DRAIN MANIFOLD - TO TANK



D M3 X7 A B

E

C

X

Y I

R

A

R

A

I Y

X

TWO SPEED OPTION

M

T

M

BB

AAMB

MD MA

MC

MAMD

MC MB

CC

PO

DRAIN MANIFOLD - TO TANK



D M3 X7 A B

E

C

XDP OPTION

M

MAMD

MBMC

ATAAC FAN MOTOR

STANDARD FAN MOTOR

EE

EE EE

285-2605

289-6362

274-8564

STANDARD CONFIGURATION

258-2520258-2835

258-2521258-2836

258-2801258-2802

246/256/262:272:

258-2442258-2605

246/256/262:272:

6V-8627

258-2831

258-2554

258-2555258-3261

STANDARD:EU:

258-2577

223-9974

258-3465258-3521

STANDARD:EU:

258-2926

291-0010

192-2640

308-0421

258-3457

336-1323

218-5841 218-5840

258-2512258-2516

246/256:262/272: 258-2514258-2515

229-5473 229-5468229-5471

314-2403

307-2276

307-6504

304-6756

112-1817

307-2275

258-2404

274-8563193-0447

289-6362

(20) MOTOR GPHYSTAT

(24) PUMP GPHYSTAT

(28) VALVE GP2 SPEED

(15) MOTOR GP 2 SPEED (LEFT HAND)

(16) MOTOR GP 2 SPEED (RIGHT HAND)

(36) VALVE GP - SINGLE SELF LEVEL

(18) MOTOR GPBETA SINGLE SPEED

(21) ORIFICE

(27) TANK GP

(25) PUMP GPIMPLEMENT

(23) PUMP GP - CHARGE

(19) MOTOR GPDEMAND FAN

(13) FILTER GP - OIL

(22) PUMP GPCHARGE AND ATAAC

(17) MOTOR GPATAAC FAN

(33) VALVE GPQUICK COUPLER

(10) CYLINDER GPQUICK COUPLER

(14) MANIFOLD ASBYPASS CHECK

(3) COOLERASSEMBLY

(37) VALVE GPXPS IMPLEMENT

(4) COUPLINGFEMALE

(6) COUPLINGMALE

(9) CYLINDER GP - LIFT (12) CYLINDER GPTILT (RIGHT HAND)

(11) CYLINDER GPTILT (LEFT HAND)

(8) COUPLINGMALE

(7) COUPLINGMALE

(5) COUPLINGFEMALE

(30) VALVE GPCHECK

(34) VALVE GPRIDE CONTROLACCUMULATORPRECHARGE

(2) ACCUMULATORRIDE CONTROL

(29) VALVE GPCHECK

(31) VALVE GPMANUAL BALL

(35) VALVE GPRIDE CONTROL

(26) PUMP GPSSL DRIVE

(32) VALVE GPPILOT SHUTOFF

(1) ACCUMULATORIMPLEMENT VALVE CHARGE

(24) PUMP GPHYSTAT

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Documents

BOB CAT 262 C