Toro Groundsmaster 4000-D Service Manual page 181

Lift/Lower Manifold Service (Fig. 112)
WARNING
If lift/lower manifold is attached to machine,
make sure that cutting decks are fully lowered
before loosening hydraulic lines, cartridge
valves or plugs from lift/lower manifold. If decks
are not fully lowered when manifold components
are loosened, decks may drop unexpectedly.
For lift/lower manifold solenoid and control valve service
procedures, see 4WD Manifold Service in this section.
Refer to Figure 112 for lift/lower manifold cartridge valve
and plug installation torque.
Groundsmaster 4000--D/4010--D Page 4 - - 143 Hydraulic System