Great Plains NP3000A Operator Manual - Manual (Page 122)

118 NP3000 and NP3000A Table of Contents Index Great Plains Manufacturing, Inc.
407-613M Table of Contents Index 2014-04-22
Material Clean-Out (Liquid)
With proper attention to maintenance, end of day
clean-out, end of season clean-out and winterization,
you can substantially increase the life and reliability of
your conventional liquid fertilizer system. Protect the
pump, clean the tanks, strainers, lines and nozzles, and
you can avoid costly and time-consuming repairs at the
next season.
Fertilizers are usually highly corrosive to metals other
than stainless steel. Suspension fertilizers can clog
system components in storage.
1. Flush entire system with clean water.
2. Remove end caps from booms and flush booms out
with water. Drain and replace end caps.
3. Remove strainer and drain it out. Drain all lines and
tanks completely to prevent freezing damage.
4. Flush pump per pump supplier manual. Fill pump
with RV antifreeze and cap off.
5. Wash all spilled fertilizer off the applicator.
Tank Clean-Out
Refer to Figure 72 - which depicts the discharge valves open to
the selector valve (not shown)
For bulk recovery of unused material, or for rinsing out
tanks, dump line elbows
are provided at the tank
discharge valves .
For connection of collection hoses, the elbows require a
hose with 1
1 ⁄
2
inch inside diameter.
Possible Chemical Hazard:
Operate the valves from above. Wear chemical gloves. Inspect
the valves from below only when flow is shut off. Wear eye
protection when working under the tanks.
The valve operating handles have the word “FLOW” and
a raised arrow
that point in the open direction of flow.
This provides tactile indication of handle orientation.
1. Connect any drain or collection hoses to the
elbows
.
2. Check that the selector valve is closed.
3. Rotate one or both tank discharge valve
operating handles to the elbows.
4. As desired, rinse out tanks from open lids.
Note: Parts of the tank plumbing system (to the selector
valve) are below the elbows. These lines must be
disconnected to completely drain them.
Possible Chemical Hazard:
Wear proper protective equipment as required by chemical
manufacturer. Avoid prolonged breathing of chemical fumes.
Wear respirator as required by chemical manufacturer. Some
chemicals will cause serious burns, lung damage, and death.
Avoid contact with skin or eyes. Seek medical assistance
immediately if accident occurs. Know what to do in case of an
accident.
Equipment Damage Risk:
Do not leave fertilizer or fertilizer residue in pump. Do not
allow air to enter pump. Even for short periods of storage, the
entrance of air into the pump causes RAPID and SEVERE
CORROSION.
L13
L13
L14
L14
Figure 72
Tank Discharge Valves
32017
1
L14
L13
Figure 73
Tank System Valves
31955
L13
L13
L14
L14
L15
L17
1
L14
L15
L13