Great Plains PT8030 V1013 Operator Manual - Manual (Page 42)

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Section 5 Maintenance and Lubrication
10/10/12 PT6030 and PT8030 Pull-Type Planter 401-032M-A
Great Plains Mfg., Inc.
Chemical Hoppers
!
CAUTION!
Agricultural chemicals can be dangerous. Follow the instruc-
tions of the chemical manufacturer when cleaning hoppers and
handling insecticides or herbicides.
NOTE: Under certain humidity or moisture conditions, ma-
terial may tend to cake. When this happens, thoroughly
clean hoppers at the end of each day’s use.
To remove hoppers, proceed as follows:
8. Disengage meter clutch.
9. Release over-center latch.
10. Slide hopper forward and lift hopper off support.
11. Clean thoroughly.
Figure 5-12
Chemical Hopper
16866
Cleaning Liquid Fertilizer Tanks
Although the tanks are made of a highly durable and cor-
rosion resistant plastic, proper maintenance is required.
Rinse the tank with water when changing from one solu-
tion to another.
Rinse tank thoroughly with water after each season or be-
fore any shutdown lasting over one week.
Do not allow sludge to accumulate in the bottom of the
tank.
Do not leave fertilizer in the tanks if the temperature is ex-
pected to drop below 40 degrees as some types of liquid
fertilizers will begin to crystallize at this temperature.
To clean tanks:
1. Remove lids from tanks.
2. Turn valve to elbow.
3. After cleaning tanks, close shutoff valve, replace cap
on metering pump and replace lids on tanks.
Squeeze Pumps
During periods when the pump is not being used, these
important steps are recommended to prevent hose defor-
mation and prolong hose life.
Refer to Figure 5-13.
1. To release pressure against the hoses, loosen the
wing nuts (1) holding the spring bar to the pump
frame. (There are four nuts total–only two are shown.)
2. Loosen the wing nuts (2) on the discharge manifold (3)
and shift the manifold rearward.
3. Store out of sunlight.
Figure 5-13
Relaxing Pressure on Metering Hoses
12409
1 2
3
Marker Breakaway Protection
The marker arm is attached to the marker body with a
5/16-inch breakaway bolt. If excessive force is put on the
marker during operation, the bolt will break, allowing the
marker arm to swing away rather than cause damage to
the marker.
IMPORTANT: The breakaway bolt is a 5/16-by-1 1/2-
inch grade 5 on planter only (GP 802-012C). If it
breaks, it must be replaced by an equivalent grade 5
bolt to prevent marker damage.