Usage:
CONFIDENTIAL TIBU3643
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TECHNICAL INFORMATION BULLETIN |
JULY 10, 2002 |
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EXCAVATORS |
365B L (9PZ, 9TZ, AGD), 365B MH (CTY), 365B L II (DER), 385B (CLS), 385B L (ANS, BLY, FDL), 5090B (CLD) EXCAVATORS |
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Component Code(s) 5070 |
SUBJECT: IMPLEMENT PUMP POWER SHIFT CALIBRATION
PROBLEM:
Improper implement pump power shift calibration may create erratic hydraulic performance. The correct procedure must be performed in order to ensure that the implement pump power shift is properly calibrated.
SOLUTION:
Use the procedure that follows in order to calibrate the implement pump power shift.
NOTE: Make sure that the pilot pressure is correctly adjusted, the engine is calibrated correctly, and the hydraulic oil temperature is 50+/-10?C (122+/-18?F).
Procedure For Implement Pump Power Shift Calibration
- Turn engine speed dial to setting "10".
- Press the "Menu" key (2).
- Select "Service Options" (4).
- Select "Perform Calibration" (2).
- Use the arrow keys and scroll through the list of available calibrations until the "Implement Pump PS" option is displayed on the message center as shown in Table 1.
July 10, 2002
Component Code(s) 5070
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Table 1 |
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"CALIBRATION SELECT" |
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"IMPLEMENT PUMP PS" |
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6. Press the "OK" key in order to start the procedure. Follow the
directions that are shown on the message center.
July 10, 2002
Component Code(s) 5070
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Table 2 |
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"IMPLEMENT POWER SHIFT" |
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CALIBRATION |
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"PRESS [OK] TO START" |
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7. Press the "OK" key to start. The display with change after
several seconds. The display will appear as shown in Table 3.
July 10, 2002
Component Code(s) 5070
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Table 3 |
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"IMPLEMENT POWER SHIFT" |
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CALIBRATION |
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"ALL" |
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"LEVERS & PEDALS" |
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DISABLED |
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8. Connect a pressure gauge to the power shift pressure port on
the pump regulator. Observe the gauge reading while using the
arrow keys in order to adjust the measured power shift
pressure to 900 +/- 50 kPa (138 +/- 7 psi). The "OFFSET"
value should range from +500 to +600. Press the "OK" key (3).
July 10, 2002
Component Code(s) 5070
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Table 4 |
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"IMPLEMENT POWER SHIFT" |
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CALIBRATION |
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"ADJUST PRESSURE TO" |
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1000 "KPA" |
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"OFFSET = + 519.00" |
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9. Use the arrow keys to adjust the measured power shift pressure to 3550 +/- 50 kPa (508 +/- 7 psi). The "OFFSET" value should range from +800 to +900. Press the "OK" key (3).
July 10, 2002
Component Code(s) 5070
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Table 5 |
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"IMPLEMENT POWER SHIFT" |
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CALIBRATION |
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"ADJUST PRESSURE TO" |
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3500 "KPA" |
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"OFFSET = + 839.00" |
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July 10, 2002
Component Code(s) 5070
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Table 6 |
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"IMPLEMENT POWER SHIFT" |
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CALIBRATION |
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"*** COMPLETED OK ***" |
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"HIGH = +839.00" |
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"LOW = + 519.00" |
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Table 7 |
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"IMPLEMENT POWER SHIFT" |
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CALIBRATION |
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SUCCESSFUL |
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"RELEASE ALL" |
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"LEVERS & PEDALS" |
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July 10, 2002
Component Code(s) 5070
COPYRIGHT 2002 CATERPILLAR
ALL RIGHTS RESERVED