Buhler 2180 - Manual (Page 240)

SECTION 3 - LUBRICATION AND MAINTENANCE
3-52
EVERY 1200 HOURS OR 12 MONTHS (WHICHEVER OCCURS FIRST)
92
OPERATION 58
CHECK POWERSHIFT TRANSMISSION
CLUTCH CALIBRATION
NOTE: The Powershift transmission has three
directional clutches. Calibrate the clutches periodi-
cally to compensate for wear. This service should be
performed after the first 50 hours of operation and
every 1200 hours, or more frequently at 300 hours if
a deterioration in shift quality is noted (see Operation
40). It is recommended that this operation be
performed by an authorized dealer.
WARNING
Before carrying out the calibration procedure,
firmly apply the park brake and block the wheels,
front and rear.
IMPORTANT: During the calibration procedure, the
electronic management system detects precisely the
point at which the clutches start to engage. This
engagement is detected by a very small reduction in
engine speed. During calibration, it is essential that
no action is taken to cause the engine speed to vary.
Be sure that the air conditioner and all electrical
equipment is switched off. Do not operate the PTO or
any hydraulic lever or move the hand or foot throttle.
Preparing the Tractor for Calibration
NOTE: The clutches should be adjusted when the oil
is at normal operating temperatures.
Prior to calibrating the directional clutches, carry out
the following:
1. Park the tractor on level ground away from any
obstacles in case of unexpected tractor
movement. Stop the engine and place remote
hydraulic controls in the neutral position.
2. Engage the park brake and block the wheels,
front and rear.
NOTE: The LCD will flash “P” if the parking brake is
not applied.
3. Turn off the air conditioning.
4. Move the shift lever to the ”NEUTRAL
DOWNSHIFT” position (to the left) and hold in
position. While holding it there, turn the key--start
switch to the start position.
5. Start the engine. The full LCD will be displayed.
6. Release the shift lever three to five seconds after
the engine starts.
NOTE: If lever is held longer than three to five
seconds, a ”d” will momentarily appear on the
display accompanied by an audible alarm. The
display then exits the calibration mode. If this
occurs, repeat steps 1 through 6.
7. Verify the digital display is showing a steady ”CC”
indicating the electronic management system is
in the clutch calibration mode.
NOTE: Repeat steps 1 through 7 if ”CC” is not
present.
8. Adjust engine speed to 1200 +/-- 30 RPM using
the hand throttle (do not use cruise control).
9. Push the shift lever forward and ”CC” should
begin flashing.
10. Proceed to calibrate the clutches if ”CC” is
flashing.