“3084 Speed Level™ Sigma Lift” Service and Parts Manual
October 2009
Page 1-27
P
L A T F O R M
L
I F T
C
I R C U I T
L
I F T
C
Y L I N D E R
NOTE:
Refer to
Cylinder Repair
.
One (1) single acting type hydraulic cylinder.
The cylinder has an integrated 2-position, 2-way solenoid operated platform lower valve
for holding the platform in position. The valve is also electrically actuated via a toggle
switch for manually lowering the platform.
The normally-closed holding valve prevents retraction of the cylinder rod should a
hydraulic line rupture or a leak develop between the cylinder and its related control
valve.
Figure 1-16:
Lift Cylinder
ART_3175
Electrically
Operated
Down Valve
Orifice
Elbow Fitting
Bearing
Bearing
Pressure Hose
Fitting
Return Hose
Содержание Speed Level 2684 ES
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Страница 104: ...3084 Speed Level Sigma Lift Service and Parts Manual November 2009 Page 3 20 ENGINE MAINTENANCE NOTES...
Страница 142: ...3084 Speed Level Sigma Lift Service and Parts Manual November 2009 Page 4a 38 TROUBLESHOOTING 3084RT MODELS NOTES...