Great Plains 1300 13-Foot Operator Manual - Manual (Page 46)

42 1300 and 1300F Table of Contents Index Great Plains Manufacturing, Inc.
175-157M Table of Contents Index 2014-04-15
Maintenance
Bleeding Hydraulics
To function properly, the hydraulics must be free of air. If
hydraulics have not been bled, they will operate with
jerky, uneven motions and could cause wings to drop
rapidly during folding or unfolding. If hydraulics were not
bled during initial implement setup or if you replace a
part in hydraulic system during the life of the drill,
complete the following procedures.
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, seek
immediate medical attention from a physician familiar with
this type of injury.
Negative Tongue Weight Hazard:
Raising openers on unfolded, unhitched drill will cause drill
tongue to rise suddenly, which could cause serious injury or
death. Be certain that drill is hitched securely to your tractor
drawbar and the safety chain is securely attached to tractor
before raising openers or unfolding drill.
Bleed only at:
JIC (Joint Industry Conference, 37
° flare) or
NPT (National Pipe Thread, tapered thread) fittings.
Never bleed at:
ORB (O -Ring Boss) or
QD (Quick Disconnect) fittings.
Check hydraulic fluid level in tractor reservoir and fill to
proper level. Add fluid to system as needed.
Hydraulic System Capacity
System capacity for the lift (only) cylinder system is:
0.45 gallon (1.7 liters).
Capacity for lift plus markers is:
0.67 gallon (2.5 liters)