Great Plains PT8030 V1012 Operator Manual - Manual (Page 52)

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Section 7 Maintenance and Lubrication
10/10/12 PT6030 and PT8030 Pull-Type Planter 401-032M
Great Plains Mfg., Inc.
Cleaning Insecticide and/or Herbicide
Hoppers
!
CAUTION!
Agricultural chemicals can be dangerous. Follow the instruc-
tions of the chemical manufacturer when cleaning hoppers and
handling insecticides or herbicides.
IMPORTANT: Under certain humidity or moisture condi-
tions, material may tend to cake. When this happens, thor-
oughly clean hoppers at the end of each day’s use.
To remove hoppers, proceed as follows:
1. Disengage drive clutch.
2. Pull pins.
3. Slide hopper rearward.
4. Clean thoroughly.
Chemical Hopper
Figure 7-8
14912
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, proceed as follows:
5. Remove lids from tanks.
6. Turn valve to elbow.
7. After cleaning tanks, close shutoff valve, replace cap
on metering pump and replace lids on tanks.
Squeeze Pumps
Refer to Figure 7-13:
During periods when the pump is not being used, these
important steps are recommended to prevent hose defor-
mation and prolong hose life.
1. Unscrew (about 1/2 inch) the wing nuts holding the
spring anchor bar to the pump frame. This releases
pressure against the hoses.
2. Loosen the wing nuts on the discharge manifold and
shift the manifold rearward.
3. Store out of sunlight.
Relaxing Pressure on Metering Hoses
Figure 7-13
12409
Marker Breakaway Protection
The marker arm is attached to the marker body with a
5/16" breakaway bolt. If excessive force is put on the mark-
er during operation, the bolt will break, allowing the marker
arm to swing away rather than cause damage to
the marker.
NOTE: The breakaway bolt is a 5/16"-18 x 1 1/2" long
grade 5 on planter only (GP #802-012C). If it breaks,
it must be replaced by an equivalent grade 2 bolt to
prevent marker damage.