Nh3: unhitching nurse tank, Nh3: exchanging nurse tanks, Nh3: final nurse tank unhitch – Great Plains NP3000A Operator Manual User Manual
Page 71: Unhitching nurse tank
Great Plains Manufacturing, Inc.
Operating Instructions
67
2014-04-22
407-613M
NH
3
: Unhitching Nurse Tank
The procedure is different for exchanging tanks vs.
concluding application.
NH
3
: Exchanging Nurse Tanks
Consult with the nurse tank supplier, and all nurse tank
documents, before unhitching or exchanging tanks.
a.
Suspend NH
3
application per “NH3: Suspending
The purpose of this step is to minimize atmospheric
NH
3
vapor while working at the rear hitch, because
you may not be able to conduct all unhitching and
re-hitching steps from up-wind of all the tines.
b.
Position the applicator cross-wind, with the wind
from the right, tines in ground.
c.
Use the rope to close the emergency shut-off valve.
d.
Put on your goggles and rubber gloves.
e.
Shut off the nurse tank withdrawal valve
. Leave
the nurse tank hose valves (
, if any), open.
f.
From up-wind, and with the orifice facing away from
you, slowly open the breakaway coupler inlet bleed
valve
.
g.
Stand clear and wait for the hoses to discharge.
h.
From the up-wind side, unscrew the nurse tank hose
outlet coupler
. Secure the hose using whatever
means the cart provides.
i.
Close all opened bleed valves.
j.
Release the nurse tank safety chains.
k.
Remove the nurse tank hitch pin.
NH
3
: Final Nurse Tank Unhitch
a.
Conclude NH
3
application per “NH3: Stopping
The purpose of this step is to minimize atmospheric
NH
3
vapor while working at the rear hitch, because
you may not be able to conduct all unhitching steps
from up-wind of all the tines.
b.
From the up-wind side, unscrew the nurse tank hose
outlet coupler (
on page 29).
c.
Secure the outlet coupler with the nurse tank’s Acme
parking plug.
d.
Close all opened bleed valves.
e.
Release the nurse tank safety chains.
f.
Remove the nurse tank hitch pin.
g.
Remove nurse tank from behind applicator.
Control Variation Hazard:
If you are using multiple nurse tanks, study each one
separately. Unless they are owned by you, and known to be
identical, there is a high probability that there are differences
between them, even if they are all from the same terminal.
A15
A10
A13
A7
A7