97
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PUMP & MOTOR SOLENOID OPERATION - GRAVITY DOWN
TABLE 97-1
HYDRAULIC SYSTEM DIAGRAMS
POWER UNIT MOTOR & SOLENOID OPERATION - GRAVITY 
DOWN
LIFTGATE 
FUNCTION
PORT
SOLENOID OPERATION (      MEANS ENERGIZED)
SWITCH RELAY MOTOR
VALVE 
“B”
VALVE 
“D”
VALVE 
“E”
VALVE 
“H”
LIFT B
“GD”
-----
LOWER C - - -
OPEN J - - -
CLOSE A - - - -
REFER TO VALVES SHOWN ON HYDRAULIC SCHEMATIC
“D” VALVES 
(TOP OF EACH COLUMN)
FIG. 97-3
“M” SOLENOID
“E” VALVE
“H” VALVE
FIG. 97-1
“D” VALVE
BUCHER PUMP “B” VALVE
FIG. 97-2
“B” VALVE
“B” VALVE