Great Plains PTO Kits 2-3-Section - Manual (Page 16)

12 2- & 3-Section YP PTO Pumps Table of Contents Index Great Plains Manufacturing, Inc.
411-015M Table of Contents Index 2014-09-10
Starting the Pump
While the planter is stationary, it may be necessary to
briefly operate the pump for any of several reasons:
• verify system installation or PTO operation
• verify oil level with system fully charged
• set initial meter pressurization
Refer to Figure 8
1.
If the system is adjusted, leave the flow control
valve as-is.
If the system is not yet adjusted, close the flow
control valve to prevent fan motion. Turn the lock
disc
counter-clockwise to release the knob .
Turn the knob fully clockwise to close the valve.
2. Clear the hitch area of non-essential persons.
Check essential personnel for long hair, scarves,
cords, frays, loose flaps and anything else that
might get entangled. Clear the area of dangling or
loose wires, straps, cord and other lines that might
become entangled and pull someone in.
Entanglement and Crushing Hazard:
Use extreme caution in the hitch area when the PTO is
operating.
High Pressure Fluid Hazard:
Watch for signs of fluid leaks. Escaping fluid under pressure
can have sufficient pressure to penetrate the skin causing
serious injury. Use a piece of paper or cardboard, NOT BODY
PARTS, to check for 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.
3. It is not necessary to run the PTO at the full
1000 rpm. You may run it any speed that provides
sufficient seed flow and meter pressurization
(page 13).
Equipment Damage Risk:
Do not START the pump and fan suddenly at high PTO speed.
Engage the PTO clutch slowly (if possible) and/or at low
engine rpm, and gradually increase PTO rpm. The hydraulic
fan can be damaged by sudden acceleration.
4. • Check that tractor is in Park or Neutral.
• Check parking brake set.
• Set the tractor PTO controls for
1000 rpm gearing (if multi-speed) and
clockwise rotation (if bidirectional).
• Start tractor engine and set throttle to idle.
• Engage the PTO.
• Bring the tractor engine and PTO up to intended
field rpms.
5. Check for hydraulic fluid leaks.
6. Verify fluid level in reservoir (page 11).
About the Flow Control Valve
The flow control valve adjusts the percent of PTO pump
output that is supplied to the planter hydraulic motors.
The total pump flow, in gpm or liters/min, is also directly
proportional to PTO shaft rpm.
Adjustment may require two persons. Pump oil flow is
ideally adjusted with all hydraulic motors active under
simulated field workload, relying on seed monitor rpm
readout, and/or Magnehelic
®
pressure gauges.
Hearing Damage Hazard:
Wear ear protection when adjusting the flow control valve. The
valve is located near the fan(s). The fan(s) must be running
during adjustment. The fan(s) are loud.
81 8-240C Re v. A
To a
void Injur
y or
Mac
hine Dama
ge:
·Operate onl
y with
1000 rpm PT
O
CAUTION 858-030C
All dr iveline guards
, tr actor
and equipment shields in place PT O pump assemb
ly securely
attached with torque ar
m and clamp
bolts proper
ly torqued
RO TATING DRIVELINE - CONT
ACT CAN CA
USE DEA
TH
KEEP A
W AY!
DO NO
T OPERA
TE WITHOUT
-
DANGER
1
2
Figure 8:
Flow Control Valve (3PYPA#56)
34848
1 2