New Holland T8010 Manual page 134

2
10
1
1. PORTING TO MASTER CLUTCH
2. INCHING VALVE BODY
3. MODULATOR SPOOL
4. REGULATED PRESSURE SUPPLY
5. PROPORTIONAL CURRENT CONTROL SOLENOID
As the inching pedal is brought fully up the current supplied to the inching valve solenoid is at the maximum.
With the inching pedal fully up the modulator piston moves up and fully shifts the modulator spool. The modulator
spool is no longer being moved by the inner spring, but through direct contact from the ramp area on the modulator
piston assembly.
The modulator spool has now moved far enough to allow full regulated pressure from the valve inlet to be applied to
the master clutch.
Section 21 - Transmission, Drivelines - Chapter 1
4
REGULATED PRESSURE
INTERMEDIATE PRESSURE
TANK/SUMP PRESSURE
21-1-45
3
5
RT98F015
6. PRELOAD SPRING
7. INNER MODULATOR SPRING
8. PISTON CENTER PIN
9. MODULATOR PISTON ASSEMBLY
10. CHECK VALVE
6
7
8
9
RH02F073