Great Plains YP1625 Operator Manual - Manual (Page 79)

Great Plains Manufacturing, Inc. Maintenance and Lubrication 75
07/09/2009 401-226M
Marker Maintenance
Refer to Figure 95
The marker arm is attached to the marker body with a
1 ⁄
2
-13 x 2 1 ⁄
2
in Grade 5 shear bolt. If shear bolt breaks,
replace it with a Great Plains part 802-130C or equiva-
lent.
Note: Replacing shear bolt with a higher grade bolt can
cause marker damage. Replacing it with a lower
grade can result in nuisance shears.
Note: If an identical Grade 5 bolt is not immediately avail-
able, temporarily substitute a metric M12x1 6.4mm
length Class 8.8 bolt and nut.
If grease seal cap for marker-disk-hub bearings is dam-
aged or missing, disassemble and clean hub. Repack
with grease and install new seal or grease cap.
Fertilizer System Maintenance
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.
4. Drain pump, then turn by hand to clear. Fill pump
with winter grade windshield washer fluid and cap
off.
Liquid Fertilizer Strainer
!
WARNING
Some chemicals will cause serious burns, lung damage, and
death. Avoid contact with skin or eyes. Wear proper protective
equipment as required by chemical manufacturer. Avoid pro-
longed breathing of chemical fumes. Wear respirator as
required by chemical manufacturer. Seek medical assistance
immediately if accident occurs. Know what to do in case of an
accident.
Refer to Figure 96
1.
Shut off valve at in-line filter.
2. Unscrew filter canister. Flush filter cartridge with
water or replace with new cartridge if necessary.
3. Reinstall canister and turn on valve.
Figure 95
Marker Shear Bolt
21962
Figure 96
In-line Filter
21965