Great Plains TA520S Operator Manual - Manual (Page 18)

1993-1995 Tandem Axle Sprayer
500-061M 3/18/2005
16
Tractor / PTO Pump Hook-Up
1. Position the PTO pump on the tractor’s PTO shaft
with the coupler bolt loose on the splined end.
2. Push the coupler of the pump on to align with notch
in the tractor PTO shaft and install bolt.
3. Make sure there is adequate hose length to reach
the pump.
4. If you have a 540 rpm pump or a 1000 rpm 1 3/8 inch
spline pump, torque the 1/2 inch Grade 8 coupler
bolts to 105 ft-lbs. If you have a 1000 rpm 1 3/4 inch
spline PTO pump, torque the 5/8 inch Grade 8 cou-
pler bolt to 210 ft-lbs and the other 1/2 inch Grade 8
coupler bolt to 105 ft-lbs.
5. Rotate the PTO shaft by hand to make sure the bolts
clear the PTO shielding.
6. Attach the torque bar chain to the drawbar securely.
7. Hook the tarp strap in such a way that the slack in
the chain is taken up slowly when the PTO is en-
gaged so the torque bar does not bang.
8. Tie up any loose hoses with cable ties to prevent
hose damage.
Tractor / Hydraulic Pump Hook-Up
1. Your tractor should be equipped with at least two re-
mote outlets (one pair).
2. If your tractor has an open-center hydraulic system,
remove the orifice restrictor in the pressure line. If
your open-center hydraulic system produces more
than 15 GPM, it is not recommended to hook this hy-
draulic pump up to your tractor. The pump will spin
too fast. If your open-center hydraulic system is 15
GPM or less, it is recommended to install a hydraulic
flow divider so that you can adjust the speed of the
pump. A Gresen model number CFDA or similar
flow divider will work. The maximum flow for the hy-
draulic motor is 6 GPM.
3. For the hydraulic motor to turn in the right direction,
the pressure hose must be connected to the "A" port
of the motor and the return line connected to the "B"
port. Install hydraulic hose clamp label provided {re-
fer to hydraulic pump section in parts manual} ap-
proximately 18 inches from tractor quick couplers so
that the hydraulic cylinder retract symbol and arrow
aligns with the pressure hose going to motor port
"A". If your tractor is a John Deere, leave the re-
strictor in the pressure side of the hydraulic pump. If
your tractor has a closed center hydraulic system
and is not a John Deere, remove the restrictor.
4. If your tractor has a closed-center system, or a flow di-
vider has been installed in your tractor’s open-center
system, set the hydraulic flow control valve at a mini-
mum flow for the pair of outlets that operates the
pump.
5. With water in the sprayer tank, and water in the pump,
place the hydraulic lever in the float position and start
the tractor.
6. Place a stop in the neutral position of your tractor hy-
draulics so that the lever can only be moved to the
float and down positions. Refer to your tractor opera-
tor’s manual or tractor dealer on information for the
neutral stop.
IMPORTANT: DO NOT move the hydraulic lever into
the neutral position while the hydraulic pump is run-
ning. To do so may cause damage to the hydraulic
pump.
7. To set the hydraulic flow control on the tractor, first en-
gage the pump by placing the hydraulic lever in the
down position. Once the system builds pressure,
close the agitation valve, shut off the boom section
switches and close throttling valves {if applicable}.
Sprayers with Raven Automatic Monitors do not have
throttling valves. The pump is now at dead head pres-
sure. Adjust the hydraulic flow control valve so that the
spray pressure reaches 80 PSI maximum on the noz-
zle pressure gauge. If so equipped, reset the solenoid
throttling valves as described in the "Solenoid Throt-
tling Valve" on page 51.