Installation & Operation Manual - StellarSupport - John Deere

FIGURE 3. Point of Injection Detail
From carrier
product tank
Installation
Check valves are used in both the carrier and injection lines to prevent back flow and contamination of carrier
and chemical reservoirs. An in-line mixer should be installed after the point of injection to ensure even mixing
of the injected product.
Once a point of injection has been selected:
From injection
module
To boom valve
manifold
1. Install a carrier check valve in the main product line to prevent back flow to the carrier reservoir. Use
Table 1, “Check Valve Sizing and Selection Chart,” on page 14 to determine proper sizing of the carrier
check valve.
2. Install a tee type fitting suitable for chemical applications after the carrier check valve.
3. Install an in-line mixer to the through port of the tee fitting and connect to the existing carrier product line or
boom valve manifold. Use Table 2, “In-line Mixer Sizing and Selection Chart,” on page 15 to determine
proper sizing of the in-line mixer.
4. Install a chemical injection check valve to the injection line in front of the point of injection to prevent back
flow to the chemical reservoir. Use Table 1, “Check Valve Sizing and Selection Chart,” on page 14 to
determine proper sizing of the carrier check valve.
Manual No. 016-0171-509 Rev. B 13
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