Hydrostatic Pump Calibration

60-160-6 S220 Service Manual

CALIBRATION (CONT'D)Hydrostatic Pump Calibration (SJC)

WARNINGPut jackstands under the front axles and rear cornersof the frame before running the engine for service.Failure to use jackstands can allow the machine tofall or move and cause injury or death.

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Place the loader on jackstands. (See Procedure on Page10-10-1.)

Operator must be in the seat and the seat bar down.

Figure 60-160-11

Close the cab door. (If loader is so equipped.)Place the loader Control Pattern Switch (Item 1) [Figure60-160-11] in the ISO position.Verify the parking brake (Item 2) [Figure 60-160-11] isOFF.

Figure 60-160-12

Figure 60-160-13

Turn the key (Item 1) [Figure 60-160-12] to the RUNposition or press the RUN/ENTER button (Item 1)[Figure 60-160-13] for power, without starting the loader.

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CALIBRATION (CONT'D)Hydrostatic Pump Calibration (SJC) (Cont'd)

Figure 60-160-14

The Control Pattern ISO Switch (Item 1) [Figure 60-160-14] will start flashing.

Figure 60-160-15

Move the left joystick to the forward-left corner position[Figure 60-160-15] and hold in position.

Figure 60-160-16

Press the PRESS TO OPERATE LOADER Button (Item1) [Figure 60-160-16] while holding the left joystick inposition.

Three audible beeps will sound.

Figure 60-160-17

Move the left joystick to the reverse-right corner position[Figure 60-160-17] and hold in position.

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Figure 60-160-18



Figure 60-160-19

Allow the left joystick to go to the neutral position [Figure60-160-19].

Figure 60-160-20

Press the PRESS TO OPERATE LOADER Button (Item1) [Figure 60-160-20].

Three audible beeps will sound and the error code (Item2) (75-98) will be displayed if the operator presses theHOLD FOR CODES (LIGHTS) switch (Item 3) [Figure60-160-20].

Start the engine from the RUN, RUN/ENTER position.DO NOT TURN TO OFF POSITION. This would cancelthe calibration mode and the procedure would have to berepeated.

Figure 60-160-21

The Control Pattern ISO Switch (Item 1) [Figure 60-160-21] will stop flashing, and will remain ON for the rest ofthe calibration procedure.

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Figure 60-160-22

Move the throttle (Item 1) [Figure 60-160-22] to high idle.

NOTE: If at any time, during calibration, the operatorneeds to stop the loader, turn the key OFF, liftthe seat bar, or return the joystick to theneutral position.

The calibration procedure will stop.

To return to calibration mode, the operatormust start the complete procedure from thebeginning.


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Figure 60-160-23

Move and hold the left joystick to the forward position[Figure 60-160-23] until the forward calibration iscompleted.

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Figure 60-160-24

The loader speed will ramp up quickly (Item 1)[Figure 60-160-24] and slow down 3 times in a row.

The loader will then stair step the speed (Item 2)[Figure 60-160-24] until it reaches full speed and thencome to a stop.

Continue to hold the left joystick in the forward positionuntil the loader tracks come to a stop and an audiblebeep is heard.

Forward calibration is complete.

NOTE: If the wheels do not stop moving in Full SpeedForward in 2 minutes or less, there was anerror in the calibration procedure. Theoperator must shut the loader OFF, and startthe calibration procedure from the beginning.

Figure 60-160-25

Move and hold the left joystick to the reverse position[Figure 60-160-25] until the reverse calibration iscompleted.

Figure 60-160-26



Continue to hold the left joystick in the reverse positionuntil the loader wheels come to a stop and an audiblebeep is heard.

Reverse calibration is complete.

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NOTE: If the wheels do not stop moving in Full SpeedReverse in 2 minutes or less, there was anerror in the calibration procedure. Theoperator must shut the loader OFF, and startthe calibration procedure from the beginning.

There will be an audible beep and the PRESS TOOPERATE LOADER and TRACTION lights will go out.The SEAT BAR and LIFT AND TILT lights will remain on.The 75-98 error code will clear. There should be no othercodes in the display area.

Allow the joystick to go to the neutral position.

The calibration procedure is completed.

Press the PRESS TO OPERATE LOADER button. Movethe left joystick to forward position [Figure 60-160-23]and check for normal forward wheel rotation.

Move the left joystick to the reverse position [Figure 60-160-25] and check for normal reverse wheel rotation.

Stop the engine, and remove the loader from jackstands.

Start the loader, press the PRESS TO OPERATELOADER button and return to normal loader operation.

Lift And Tilt Calibration (ACS)

The controller uses a calibration sequence to optimizethe control system. The optimizing ensures full spoolstroke (full flow) while preventing over stroke (loading) ofthe actuator and resets the calibration points in thecontroller.

In addition to performing the Calibration Procedure(ACS), the Actuator Testing procedure should ALSO beperformed. (See Actuator Testing on Page 60-160-1.)

NOTE: This calibration procedure must be followedwhen replacing a hydraulic control valve,handle sensor, actuator or ACS controller.Failure to calibrate after componentreplacement may result in poor performanceor reduced life of actuator(s).

Figure 60-160-27

Update the loader service software to the latest version.

Place the rocker switch (Item 1) [Figure 60-160-27] inthe hand control mode.

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A300 Bobcat Loader60-10-2 Service Manual

60-160-6 A300 Service Manual

CALIBRATION (CONT'D)Hydrostatic Pump Calibration


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Place the loader on jackstands. (See Procedure on Page10-10-1.)

Operator must be in the seat and the seat bar down.

Figure 60-160-10

Close the cab door. (If loader is so equipped.)Place the loader Control Pattern Switch (Item 1) [Figure60-160-10] in the skid steer position.Verify the parking brake (Item 2) [Figure 60-160-10] isOFF.

Figure 60-160-11

Figure 60-160-12

Turn the key (Item 1) [Figure 60-160-11] to the RUNposition or press the RUN/ENTER button (Item 1)[Figure 60-160-12] for power, without starting the loader.

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CALIBRATION (CONT'D)Hydrostatic Pump Calibration (Cont'd)

Figure 60-160-13

The skid steer mode of the Control Pattern Switch (Item1) [Figure 60-160-13] will start flashing.

Figure 60-160-14

Move the left joystick to the forward-left corner position[Figure 60-160-14] and hold in position.

Figure 60-160-15



Figure 60-160-16

Move the left joystick to the reverse-right corner position[Figure 60-160-16] and hold in position.

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Figure 60-160-17



Figure 60-160-18

Allow the left joystick to go to the neutral position [Figure60-160-18].

Figure 60-160-19

Press the PRESS TO OPERATE LOADER Button (Item1) [Figure 60-160-19].

Three audible beeps will sound and the error code (Item2) (75-98) will be displayed if the operator presses theHOLD FOR CODES (LIGHTS) switch (Item 3) [Figure60-160-19].

Start the engine from the RUN, RUN/ENTER position.DO NOT TURN TO OFF POSITION. This would cancelthe calibration mode and the procedure would have to berepeated.

Figure 60-160-20

The skid steer mode of the Control Pattern Switch (Item1) [Figure 60-160-20] will stop flashing, and will remainON for the rest of the calibration procedure.

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Figure 60-160-21

Move the throttle (Item 1) [Figure 60-160-21] to high idle.

NOTE: If at any time, during calibration, the operatorneeds to stop the loader, turn the key OFF, liftthe seat bar, or return the joystick to theneutral position.

The calibration procedure will stop.

To return to calibration mode, the operatormust start the complete procedure from thebeginning.


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Figure 60-160-22

Move and hold the left joystick to the forward position[Figure 60-160-22] until the forward calibration iscompleted.

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Figure 60-160-23



Continue to hold the left joystick in the forward positionuntil the loader tracks come to a stop and an audiblebeep is heard.

Forward calibration is complete.

NOTE: If the wheels do not stop moving in Full SpeedForward in 2 minutes or less, there was anerror in the calibration procedure. Theoperator must shut the loader OFF, and startthe calibration procedure from the beginning.

Figure 60-160-24

Move and hold the left joystick to the reverse position[Figure 60-160-24] until the reverse calibration iscompleted.

Figure 60-160-25



Continue to hold the left joystick in the reverse positionuntil the loader wheels come to a stop and an audiblebeep is heard.

Reverse calibration is complete.

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NOTE: If the wheels do not stop moving in Full SpeedReverse in 2 minutes or less, there was anerror in the calibration procedure. Theoperator must shut the loader OFF, and startthe calibration procedure from the beginning.

There will be an audible beep and the PRESS TOOPERATE LOADER and TRACTION lights will go out.The SEAT BAR and LIFT AND TILT lights will remain on.The 75-98 error code will clear. There should be no othercodes in the display area.

Allow the joystick to go to the neutral position.

The calibration procedure is completed.

Press the PRESS TO OPERATE LOADER button. Movethe left joystick to forward position [Figure 60-160-22]and check for normal forward wheel rotation.

Move the left joystick to the reverse position [Figure 60-160-24] and check for normal reverse wheel rotation.

Stop the engine, and remove the loader from jackstands.

Start the loader, press the PRESS TO OPERATELOADER button and return to normal loader operation.

Hydrostatic Pump Calibration

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