2019-03-19
411-198M
YP4025A-48TR20
Operating Instructions
30
Lift Cylinder Lock-Up
When moving the raised product more than a short
distance, or over any public road, or when performing
adjustments or maintenance, do not rely solely on the lift
cylinders to keep the mainframe raised.
Install transport locks.
1. If product is folded, confirm hitch is in Float.
If product is unfolded, hitch may be in any
configuration.
2. Raise the product mainframe. See
3. Remove the transport locks from their storage
positions
. Install the transport locks on the
cylinder rods
, securing them with the same pins
used for storage.
4. Lower the lift cylinders onto the locks.
Re-Phasing Lift System
In typical use during a single planting operation, it is
normal for the lift cylinders to get slightly out of phase,
resulting in uneven raising and lowering of the Product #
implement name.
Every 8 to 10 passes, or if lifting is uneven, re-phase the
cylinders with this procedure:
1. Raise the product completely, and hold the hydraulic
lever or switch in Extend for several seconds after
the product reaches full elevation, or until all
cylinders are fully extended.
2. When all cylinders are fully extended, momentarily
reverse (Retract) the control to lower the product
1
/
2
inch (13 mm).
Local Float on Hydraulic Tongue
A hydraulic hitch product may be raised or lowered while
folded using the local float valve.
1. Float hitch circuit before lowering while folded.
Float hitch circuit before raising while folded.
2. Set CFM Lift/Hitch switch to Lift for raising/lowering.
3. Close bypass valve before switching to Hitch. Hitch
circuit operation has no effect with bypass valve
open.
Figure 25
Lift Cylinder Locks Installed
29283
1
1
2
2
1
2
Crushing Hazard:
Tongue or product components may drop suddenly when
circuit is floated. Before raising or lowering, set CFM
Lift/Hitch switch to Hitch and set tractor circuit to Float. If
tractor is not available, use bypass valve on hitch.
Stand clear and open it slowly
.
Figure 26
Local Float on Hydraulic Tongue
28477
1
