The hydraulic control valve is located inside the main frame on the right hand side, below the operators cab.
The hydraulic control valve [Figure 20-40-1] is the hydraulic component that uses spools to direct the flow of hydraulic fluid to the lift, tilt and auxiliary functions.
The lift and tilt functions are operated using mechanical linkages to connect the foot pedals to the lift and tilt spools.
The auxiliary function is operated by pilot pressure.
There is one solenoid located by each side of the spool.
Only one solenoid at a time is activated by the switch on the right side control handle/lever. The activated solenoid sends pilot pressure oil to one side of the spool and forces the spool to shift.
The hydraulic control valve contains a main relief valve which is adjustable.