Great Plains NP3000A Operator Manual - Manual (Page 62)

58 NP3000 and NP3000A Table of Contents Index Great Plains Manufacturing, Inc.
407-613M Table of Contents Index 2014-04-22
NH
3
: Making Nurse Tank Connections
These instructions presume an applicator with Great
Plains-supplied Squib-Taylor Flo-Max™ coupler and
Raven AccuFlow™ application system.
1. Perform the steps at “NH3: Safing Applicator
Before Cart Hitch”, pages 55.
Anhydrous Ammonia Exposure Hazard:
Do not skip step 1. Wear your PPE
a . Never open a line without
first performing a bleed to check it. If the applicator was
improperly shut-down, the hose can contain more NH
3
than
your PPE can handle. Lung damage, burning, blindness and
death are possible.
Refer to Figure 31
2.
Check that the two halves of the breakaway
coupler
are firmly mated at the swivel bracket.
If not, see the Squibb-Taylor Flo-Max™ manual for
re-connection instructions.
3. Check that the break-away coupler bracket is
free to swivel, relative to pointing directly rearward
horizontal, by at least:
80
° to each side,
45
° up, and;
20 ° down.
4. Remove, the Acme cap on the inlet side of the
break-away coupler.
Refer to Figure 32
5.
Inspect the inlet Acme threads . Clean away any
debris or other contamination.
Blinding, Choking and Respiratory Hazard:
Never look directly into an ammonia hose or fitting.
Use a mirror. Always assume that ammonia is present in the
system. There are many ways it can hide, and surprise you
later. See “Avoid Trapped Anhydrous” on page 106.
6. Using a hand mirror, inspect the gasket inside the
fitting . If there is no sign of ammonia, and no
odor, you can remove the gasket by hand for closer
inspection.
This gasket makes the liquid-tight seal between the
hose and break-away coupler. Inspect it for a smooth
face, no cracks, chips or weathering, and no sign of
permanent compression. Replace gasket as needed
for a tight seal.
a. PPE: Personal Protective Equipment
Figure 31
Applicator NH
3
Inlet
31529
7
A18
A11
A14
A14
7
A11
Figure 32
Inspecting Fitting With Mirror
31565
2
A12 A12
2
A12