25
Valve Operation
Refer to Figure 4-8 for valve locations and the
hydraulic diagram in Figure 4-15. The valves are
labeled on the valve manifold as A, B, C, FA and FB.
The platform down valve is located at the base of
the lift cylinder.
Steering Valve Right (A): Pressing the
ENABLE
and
the thumb steering switch to the right energizes the
steering valve, causing the steering cylinder to
extend and execute a right turn.
Steering Valve Left (B): Pressing the
ENABLE
and the
thumb steering switch to the left energizes the
steering valve, causing the steering cylinder to
retract and execute a right turn.
Lift Valve (C): Pressing the
ENABLE
and
UP
pushbuttons energizes the platform lift valve,
causing the lift cylinder to extend.
Down Valve (D): Pressing the
ENABLE
and
DOWN
pushbuttons energizes the platform down valve. Oil
flows back into the reservoir, causing the lift cylinder
to retract.
Steering Speed Adjust Valve (FA): Adjust to control
left turn – steering cylinder retraction rate.
Steering Speed Adjust Valve (FB): Adjust to control
right turn – steering cylinder extension rate.
Figure 4-8. Valve Operation
Summary of Contents for ESP 19
Page 1: ......
Page 18: ...18 ...
Page 42: ...42 Figure 4 17 Electrical Layout ...
Page 43: ...43 Figure 4 18 Drive Wiring Diagrams ...
Page 44: ...44 Figure 4 18 Drive Wiring Diagrams 2 ...
Page 45: ...45 Figure 4 19 Upper Control Wiring Diagram ...
Page 46: ...46 ...
Page 49: ...49 Figure 5 1 Decal Locations Side View ...
Page 51: ...51 APPENDIX A PART LISTS ...
Page 68: ...68 DRIVE AXLE 16 17 15 12 11 10 14 13 9 8 7 5 4 6B 6 6A 6C 1 2 3 ...
Page 78: ...78 HYDRAULIC CYLINDER FITTINGS AND HOSES 1 9 10 11 12 13 14 15 14 8 5 4 3 2 6 7 16 17 ...
Page 80: ...80 ...
Page 82: ...82 EUCLID MOTOR FACE MOUNT ...
Page 84: ...84 EUCLID MOTOR FLANGE MOUNT ...
Page 86: ...86 ASI MOTOR MOUNT ...
Page 88: ...88 STEERING ASSEMBLY I ...
Page 90: ...90 STEERING ASSEMBLY II ...
Page 92: ...92 ...
Page 93: ...93 ...
Page 94: ...94 ...
Page 95: ...95 ...
Page 96: ...96 ...