Great Plains 3S-5000HDF Operator Manual - Manual (Page 50)

46 3S-5000/F/HD/HDF Table of Contents Index Great Plains Manufacturing, Inc.
195-325M Table of Contents Index 2012-08-14
Opener Frame Clearance
Refer to Figure 42
When fully raised, top of opener mounts
should clear
bottom of drill frame tube by at least
1 ⁄
2
inch.
To adjust opener frames so all openers have the same
clearance, loosen jam nut
on opener lift cylinders and
turn adjustment nut. When openers are at the correct
height, retighten jam nut. Repeat at each opener lift
cylinder if necessary.
Hydraulic Down Pressure All Openers
Crushing Hazard:
You will be seriously injured or killed if you are caught
between raising openers and drill frame. Always stop tractor
engine, set park brake, and remove key before adjusting or
servicing openers. Keep all bystanders well away during drill
operation.
High Pressure Fluid Hazard:
Escaping fluid under pressure can penetrate the skin causing
serious injury. Avoid the hazard by relieving pressure before
disconnecting hydraulic lines. Use a piece of paper or
cardboard, NOT BODY PARTS, to check for suspected leaks.
Wear protective gloves and safety glasses or goggles when
working with hydraulic systems. If an accident occurs, see a
doctor immediately.
Opener down pressure controls opener penetration and
press-wheel soil firming. Use only enough down
pressure to cut a furrow and maintain proper soil-firming
over seed. Excessive opener down force may cause
bulldozing of the openers in light soil conditions, and will
lead to premature wear on opener components.
Figure 42
Opener Frame Clearance
34328
1
2
1
2