Great Plains P15061 Serial No 12682 - Manual (Page 36)

Solo
Operating Instructions
36
5. Servicing and Maintenance
5.10 Changing Roll
Configuration
The following procedures outline changing the
configuration of the roll from the mid mounted
position to the rear position and vice versa.
Extreme care should be exercised
while performing this operation and
all Health & Safety guidelines
present in this manual should be
adhered to.
Mid-Roll to Rear Roll
1. Unfold the press unit (all other working
elements should remain in the transport
position).
2. Remove the depth control rod and the
shim storage tie rod (items 17&19 on
Page 128).
3. Put the wing circuit into float .
4. Remove the 6 nuts on the rampoint unit
and the 2 outer cylinder bolts.
5. Disconnect the hydraulic hose on the
valve block (at ports F01 & FI1) and at
the junction in the pipes. Remove and
stow this hose (in the toolbox).
Pressure may be retained in the
circuit between the valve and the
cylinders. Although it shouldn’t be
necessary to remove the fittings
between the valve and the
cylinders, the de-pressurisation
procedure (page 35) should be
followed before doing so.
6. Remove the bolts from the lift cylinders
on the carriage unit and lower the roll
unit to the ground.
7. Fully raise the machine and put the
maximum amount of shims into the lift
axle rams.
8. Open the drawbar taps and lower the
machine until the front gangs are just
clear of the ground so that the rear
gangs can clear the roll unit.
9. Drive the machine forward until the back
gang is clear of the roll unit.
10. Raise the machine, take out the lift axle
shims before lowering the machine
again.
11. Remove the 4 bolts on the rear gang
mounting unit (as seen on Page 86).
12. Close the drawbar cylinder taps.
13. Carefully raise the machine until the
gang unit is clear of the mounting plate.
14. Reverse the machine through the rear
gang hole and bolt the rear gang and
chassis support (see Page 76) loosely
into position.
15. Raise the machine and place the rear
gangs into the minimum angle setting.
16. Remove the rear drawbar.
17. Remove wear pads for the roll carriage
from the mid-mount position to the rear
position (item 31 on Page 66).
18. Raise the roll carriage unit to the
mounting plate at the back of the
machine and attach along with chassis
support unit. Tighten the bolts left loose
in 14.
19. Re-insert the depth rod and the shim
storage bar.
20. Bolt on the top cylinder plate.
21. Lift the carriage unit and attach the rams
to the top.
22. Re-route hoses as per revised piping
for mid/rear roll configuration. Utilise the
the hoses that were not removed
(P13639 (3/8" 1650mm long)). Take
care whilst reconnecting the hoses to
the valve to put the twin cable-tied hose
into port F01 (rod side) and the single
cable-tied hose into port FI1 (cylinder
side).