Nurse tank front end – Great Plains NH3 Safety User Manual
Page 15
Great Plains Manufacturing, Inc.
Ammonia Nurse Tanks
11
2013-07-15
407-551M
Nurse Tank Front End
A cart may have one or two tanks. A two-tank cart often
has a separate hookup for each tank. A two-tank, two-
hose cart may be used with a dual-cooler implement, or
a single-meter implement (one tank after another).
Refer to Figure 3
A55 UN1005 decal:
See page 4. This information is for trained users of
the material and emergency responders.
A56 25 MPH mirror image decal:
This decal is for the benefit of the operator
transporting the cart on public roads. It reads legibly
in a rear view mirror.
A57 Acme
a
parking plug:
An acceptable nurse tank must have a means of
securing the outlet end of each hose. This is usually
an Acme-threaded plug mounted on the tank or
tongue. See the applicator Operator manual for
hose hookup and unhitching.
Vapor Exposure Hazard:
Acme plugs typically do not have gaskets, and do not make a
gas-tight seal. Residual liquid or gas in the hose slowly vents
at the plug. Use valves to close lines.
Refer to Figure 4
A58 Acme Female Hose Coupler:
On a leased tank, the terminal may supply no hose,
in which case you need to provide your own.
This end of the hose connects the tank withdrawal
valve to the leading implement inlet at the
breakaway coupler. For use with a Nutri-Pro
®
applicator, the outlet end of the hose must be
equipped with a 1
3
⁄
4
-4 female Acme fitting.
The outlet end of the hose has a swivel collar
b
or
shroud containing the female Acme fitting. This
allows connection without needing to twist the hose.
Acme hose couplers are intended for hand
tightening only. Do not use tools to make the cart-
implement connection. A liquid-tight seal is made by
the gasket in the male Acme fitting on the
implement break-away coupler.
a. Acme refers to the ANSI/ASME B1.5-1997 screw thread, which has a coarse trapezoidal thread profile.
b. Acme collars may be aluminum, but all internal coupler components must be NH
3
-safe, typically stainless steel.
Figure 3
Nurse Tank Front
31559
A58
A56
A55
A59
A58
A58
Suffocation, Blinding and Burning Hazards:
Never disconnect at an Acme coupler without first:
• shutting off the line at all valves, and
• bleeding the line at the connection.
Be up-wind for all operations.
Figure 4
Acme Hose Coupler
31567