Error Codes For Power Command Transmission; Operation 37 - Transmission Clutch Calibration; Preparing The Tractor For Calibration - New Holland T7030 Operator's Manual

OPERATION 37
TRANSMISSION CLUTCH CALIBRATION
Power Command Transmission
The Power Command transmission has a number of
clutch packs requiring periodic calibration to
compensate for wear. Calibration of the clutches
should be performed at the 50 Hour Service and
thereafter only if a deterioration in gear shift quality
is noted.
NOTE: During the calibration procedure the
electronic management system detects precisely the
point at which the clutches start to engage . The
engagement is detected by a reduction in engine
speed. During calibration it is essential that no action
is taken to to cause the engine speed to vary. Be sure
that the air conditioner and all electrical equipment is
switched off.
Do not operate the steering wheel, footbrakes, 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
transmission oil temperature is above 80
Park the tractor on level ground, away from
obstacles (in case of unexpected tractor movement).
Place the transmission shuttle lever in neutral and
apply the parking brake. Switch off all electrical
equipment and air conditioning if fitted. Lower
hydraulic equipment to the ground, place all remote
levers in neutral and stop the engine.
With the operator in the seat, depress and hold down
the clutch pedal. With key start in the off position
depress and hold both transmission upshift and
downshift buttons, Figure 101. Start the engine and
release the buttons to initiate the calibration mode.
Release the clutch pedal.
NOTE: In 'automatic calibration sequence' the seat
switch is constantly monitored, if the operator leaves
the seat the sequence will be stopped.
4--56
SECTION 4 - - LUBRICATION AND MAINTENANCE
C (176
°
Error Codes for Power Command
Transmission
F).
°
Code Meaning
U19 Oil too cold.
U21 Engine RPM too low.
U22 Engine RPM too high.
U23 Shuttle lever not in forward drive position.
U26 Clutch pedal not fully released.
U31 Tractor wheel movement detected.
U33 Hand brake not applied
U34 Operator seat switch not depressed.
U36 Calibration high error.
U37 Calibration low error.
Ud1 Flywheel torque calibration too low
Ud2 Flywheel torque calibration too high
101