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Section 2: Operating Instructions
4/03/14
PS25120 Primary Seeder 313-156M
Tractor Hydraulic Hook-Up
!
DANGER
Hydraulic fluid under high pressure can penetrate the skin.
Wear protective gloves and safety glasses or goggles when
working with hydraulic systems. Use a piece of cardboard or
wood rather than hands when searching for hydraulic leaks. If
hydraulic fluid is injected into the skin or eyes, it must be
treated by a doctor familiar with this type of injury within a
few hours or gangrene may result. DO NOT DELAY.
For Pull-Type Seeders equipped with front or end
wheels, route all hydraulic hoses along the tongue and
through the hose loop on the front of the tongue as
described in the assembly instructions. Connect hoses to
the tractor remote outlets.
Purging Rephasing Lift Cylinders
!
CAUTION
Do not crack hose fittings in order to bleed air from this
system.
Tractors with pressure detents do not allow hydraulic
systems to “automatically” rephase at the top of the lift
cycle. This must be done manually or the rephasing
cylinders will not function properly. Therefore, after every
couple of trips back and forth across the field and after
the machine has been fully raised, the control lever
should be pulled back and held for 1-2 seconds. This will
purge air that has been ingested into the system.
Operating Hydraulic Lift System
The lift cylinders may, over time get out of time or phase.
The effects of this can be seen when one wheel of the
seeder is higher than the other because one lift cylinder
is over retracted compared to the other lift cylinder.
To rephase the cylinders, raise the seeder completely up
and hold the tractor hydraulic lever on for a few seconds
to give the cylinders time to rephase. This should be
done each time the seeder is raised. Momentarily
reversing the hydraulic lever immediately after rephasing
to allow the cylinders to retract about 1/2" will help in
maintaining a level seeder during transport.
NOTE: There is a chance of drawing air into the
system causing jerky or uneven cylinder movements
if tractor reservoir is low on hydraulic fluid. Check
hydraulic fluid in the tractor reservoir and fill to the
proper level before purging lift cylinders.
NOTE: It is the nature of rephasing cylinders to
settle slightly after the seeder has been raised.
NOTE: Understand that having the cylinders
become gradually out of time is different than having
air trapped in the system from improper bleeding.
Each condition is corrected differently.
Transporting
3-Point & Pull-Type Seeders
!
CAUTION
When traveling on public roads whether at night or during the
day, use accessory light and devices for adequate warning to
operators of other vehicles. Comply with all federal, state, and
local laws.
1.
It is best to transport on the road with an empty box
unless necessary as the increased seed weight will
increase the chances for road problems.
2.
Select a safe ground travel speed when transporting
from one area to another.
3.
When traveling on roadways, transport in such a way
that faster moving vehicles may pass you safely.
4.
Reduce tractor ground speed when turning. Leave
enough clearance so the seeder does not contact
obstacles such as buildings, trees, or fences.
5.
Shift to a lower gear when traveling over rough or
hilly terrain.
Pull-Type Seeders
!
CAUTION
Pull-Type Seeders should never be pulled faster than 20 miles
per hour!
1.
Make sure the Pull-Type Seeder is securely attached
to the tractor draw bar and hitch safety chain has
been securely attached.
2.
Check to see that the transport tires have proper
inflation. See "Tire Inflation Chart" on page 35.
Refer to Figure 2-6:
3.
Front Wheel and End Wheel Pull-Type Seeders are
equipped with a transport cylinder lock. Be sure to
set the transport lock over the cylinder rods to
safeguard against mechanical or hydraulic failure
while traveling.
a. Raise seeder up.
b. Remove bent pin and cylinder lock from storage
position on wheel bracket.
c. Place lock over cylinder rod and pin to secure
cylinder lock in place.
Cylinder Lock
Figure 2-6
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