SkyTrak 3606 Service Manual - Manual (Page 196)

Section 9
9-2
9.10.4 Hoist/Lower Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-97
9.10.5 Frame Tilt and Stabilizer Cylinders . . . . . . . . . . . . . . . . . . . . . . 9-100
9.10.6 Swing Carriage (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-106
9.10.7 Side Tilt Carriage Cylinder (optional) . . . . . . . . . . . . . . . . . . . . 9-112
9.10.8 Steer Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-116
9.11 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-117
Introduction
The hydraulic system consists of fluid, a reservoir, filters,
the gear pump, numerous valves, cylinders and other
components that provide vehicle operation and function,
plus a fluid cooler and all of the related lines, connectors
and hoses. Hydraulic functions are actuated through
interface with electrical system components (such as
switches, solenoids and sensors); therefore, when a
hydraulic system malfunction is suspected, also consider
the electrical aspect of the particular circuit in question.
For further information on electrical components, refer
to Section 10 Electrical System in this manual.
The text in this section discusses each hydraulic circuit
and its components, as well as component function and
replacement. Comprehensive circuit schematics and
exploded view illustrations are used to represent
component operation and to aid in performing
procedures. A troubleshooting table appears at the
conclusion of this section.
The number one cause of hydraulic component failure is
contamination. Thus, cleanliness and filtration are of the
utmost importance. Keep the hydraulic fluid as clean as
possible to help avoid downtime and repairs.
Dirt and other contaminants that enter the system will
wear away at precision components, ultimately resulting
in their failure. Sand, grit and other contaminants can
damage the finely machined surfaces within hydraulic
components. Keep the fluid clean and filtered. If
operating in an exceptionally dirty environment, change
filters and inspect the fluid more often.
When servicing the system, protect system components
from airborne contaminants. Cap or plug hydraulic
fittings, hoses and tube assemblies. Plug all cylinder
ports, valves, and the hydraulic reservoir and pump
openings until installation occurs. Protect threads from
contamination and damage.
Model 3606 • Origin 10/99