4010 ATD LT ASSY/OPER/PARTS MANUAL (74303) 12/08
HYDRAULIC SYSTEM ASSEMBLY
The drill portion of this unit requires 3
hydraulic circuits to properly operate.
MAIN LIFT CIRCUIT
The main lift circuit is used to raise and
lower the complete unit. It consists of a set
of 8" stroke sequencing cylinders of varying
diameter which, when properly connected
and adjusted, will move the unit in a level
manner. Unit operating depth is maintained
by using stroke control collars of varying
length on each lift cylinder (see operating
instructions for more information).
Locate the lift cylinders and move to the
lift axle areas. Refer to cylinder location
instructions (35) to assemble the cylinders
to the main frame and wing lift anchors and
the rear packer assemblies. Cylinders are
mounted with the rod ends up, secured
with the pins noted or with the pins that are
supplied in the cylinder boxes. Locking roll
pins or cotter keys can be used to secure the
pins. Locate the cylinder stop collar packages
and clip to the storage rods provided at each
cylinder location.
Locate the appropriate hydraulic hoses and
position in the general areas of the unit as
shown in the hose routing instructions (38).
Install noted fi ttings in all cylinders in the
circuit. As shown this system requires that the
hoses connect the cylinder's in the correct
sequence. Hoses are routed from the tractor
to the base end of the largest cylinders, from
the rod end of that cylinder to the base end of
the next smaller diameter cylinder, etc. Most
hoses are run down the center of the unit,
secured with nylon ties to frame members or
the hose brackets mounted down the side of
the rear hitch.
.
Position and attach the left and right rear
lift axles to the lift axle pivots (24) as shown
and secure. Insert hubs & spindles and rims
and tires.
TRANSPORT LIFT CIRCUIT
There is a single set of lift cylinders that are
used to lift and hold the rear of the unit in
the transport position. These cylinders are
connected in a simple circuit as noted (40).
Attach the base end of the 4x16 cylinders
to the rear lift mast and support the cylinder
with a block to allow full extension without
contacting machine elements. Locate the
required hoses for this circuit, connect the
circuit as shown, route and loosely secure
the hose with the nylon tyes provided.
WING FOLD CIRCUIT
The wings are folded for transport by two
large 5" hydraulic cylinders located at the
rear of the unit. Refer to the cylinder location
instructions for proper orientation of the
cylinders (39). Attach the base ends of the
main wing fold cylinders with the bolts or pins
noted. Position a wood block spacer under
the cylinder to hold the rod end of the cylinder
above the outer wing fold linkage attach point.
Support the end of the cylinders to allow room
for the rods to fuller extend without contacting
any frame parts.
Locate the required hoses for this circuit,
connect the circuit as shown, route and
loosely secure the hose with the plastic tyes
provided.
HOSE ROUTING/CLAMPING
Hose should be generally routed as shown
in the routing instruction. Since there are
many variables to the routing of hoses it is
recommended that hoses be routed along
frame members where possible. Special
attention should be paid to routing hoses
away from potential pinch points when folding
wings or when working. Note the need for
more hose at the hinge points, route the
hoses so there is additional length to move
as components move. Loosely secure hoses
with the plastic tyes provided, cinch tight after
fi nal assembly.
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