New Holland T8010 Manual page 136

STEP 1 - Record Clutch Pressures in each Gear with Tractor Instrumentation
NOTE: Clutch pack leaks can be identified through the tractor instrumentation pressure readings.
IMPORTANT: The tractor must be driven to perform this test. Perform this test in an open outdoor location free of
obstacles and people.
-- Start and run the engine with the transmission control lever in the PARK position.
- Press the INCR or DECR key on the programmable instrumentation until TRANS OIL TEMP screen is reached.
NOTE: Screen order is set by the operator. The TRANS OIL TEMP and TRANS SYS PRESURE screens could or
could not be together depending on setup.
- Operate the engine at 1500 RPM until the transmission temperature displayed on the instrumentation reads at
least 49° C (120° F).
- Press the INCR as required to display the TRANS SYS PRESSURE screen.
- With the engine at 1500 RPM, record the transmission system pressure with all hydraulic systems OFF, PTO and
Diff Lock in the OFF position and the FWD switch in the ON position.
- Select 1st gear with the Gear selection switch.
Move the transmission control lever to forward. Release the inching pedal. Shift through the gears and record the
valve manifold pressures below.
NOTE: Valve manifold pressures will momentarily drop and quickly recover pressure as each shift is completed.
GEAR 1 _________________
GEAR 2 _________________
GEAR 3 _________________
GEAR 4 _________________
GEAR 5 _________________
GEAR 6 _________________
Shift back to 1st gear and move the transmission control lever to reverse. Shift through the reverse speeds and
record the pressures.
The "PresS" system pressure will be noticeably lower in the following gears if there is significant clutch leakage:
Low pressure for Speeds R1, R2, R3 and R4 --------------------- Indicates Reverse Clutch Leakage.
Section 21 - Transmission, Drivelines - Chapter 1
GEAR 7 __________________
GEAR 8 __________________
GEAR 9 __________________
GEAR 10 _________________
GEAR 11 _________________
GEAR 12 _________________
REVERSE 1 _________________
REVERSE 2 _________________
REVERSE 3 _________________
REVERSE 4 _________________
21-1-47
GEAR 13 _________________
GEAR 14 _________________
GEAR 15 _________________
GEAR 16 _________________
GEAR 17 _________________
GEAR 18 _________________