GREAT PLAINS YP1225A, Руководство пользователя

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Great Plains | 401-625B | 6/19/19 102
YP1225A and YP1625A Table of Contents Index Liquid Fertilizer
Strainer
A Banjo brand strainer is supplied with the fertilizer pump
option. It is plumbed before the pump. The standard
80 mesh screen (1) should be suitable for most
applications. Other screen sizes are available from Banjo
Corporation.
Agricultural Chemical Hazard:
Wear protective gloves when changing strainer screens.
Consult material manufacturer or supplier documents for
proper handling and steps to take if skin contact occurs.
If changing screen sizes, keep in mind the following.
•
A smaller mesh (100) will keep very small manifold
orifice plates from plugging so often. However, the
screen will have to be cleaned more often.
• A larger mesh (50) or (30) will pass more material
but should only be considered when using large
manifold orifice plates.
• A plugged or partially plugged screen will starve the
pump resulting in a reduced application rate.
• Mesh sizes: (Smallest) 100, 80, 50, 30 (Largest)
Relief Valve
A relief valve is plumbed after the pump outlet to protect
the manifold and pump from excessive pressure. Any
product that dumps over the relief valve will discharge
from the dump line (1).
To set relief valve:
1. Unlock plastic jam nut (2) from relief valve knob (3).
2. Unscrew knob clockwise until it loses contact with
internal spring.
3. Screw knob counterclockwise two turns. Start at this
setting.
4. Observe manifold gauge (4). Watch for relief valve
discharge while operating in the field.
5. If valve is dumping product and gauge reads under
65 psi, stop tractor and turn knob clockwise (looking
down)
1
/
4
turn. Continue operating at normal field
speed. Repeat this step as needed until no product
is discharged from relief valve.
6. If pressure gauge reads above 65 psi, change to a
larger orifice. Go to step 2. Repeat steps.
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2
3
4
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