Maintenance and lubrication, Maintenance, Breakaway protection – Great Plains John Deere 30' Dual 750 Flat Fold Markers User Manual
Page 12: Marker transporting
John Deere 30’ Dual 750
205-052M
3/20/2003
10
Maintenance
Proper servicing and adjustment is the key to the long
life of any farm implement. With careful and systematic
inspection, you can avoid costly maintenance, time and
repair.
Breakaway Protection
The marker arm is attached to the marker body with a
7/16" 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.
Marker Transporting
Always transport the marker with it folded in the flat fold
position.
NOTE: The breakaway bolt is a 7/16"-14 x 2 1/4"
long grade 5 (G.P. # 802-234C). It is identified as a
grade 5 by having three marks on the head. If it
breaks, it must be replaced by an equivalent grade
5 bolt to prevent marker damage.
Maintenance and Lubrication
- Heavy Reset Springs Kit (3 pages)
- Single Section Yield-Pro Implement PTO Pump System or Fan Update (82 pages)
- Flex Harrow Light Kit (2 pages)
- Planter Hopper Lid Latch Kit (4 pages)
- YP Drive Shaft Update Kit (3 pages)
- 30-Foot 3-Section Vintage Drill (28 pages)
- Uni-Press (20 pages)
- White Planters 6100 Planter Seed-Lok (17 pages)
- 1200TM (3 pages)
- PM400 Monitor Operator (60 pages)
- Raven 440 (60 pages)
- Verti-Till Ripper VT 03 Hyddepth Convert (5 pages)
- Native Grass Cup Enhancement Kit (7 pages)
- Raven G1 Autoboom Assy (2 pages)
- 8030-3P Wide Row Planters (28 pages)
- Terra-Tine Row Cleaner (31 pages)
- S3T (22 pages)
- Eliminator Kit (7 pages)
- Yield-Pro 1625 Planter 2004 (13 pages)
- Utility Coulter & Vantage I-20 Fertilizer Coulters (21 pages)
- Electric Clutch Package (108 pages)
- Seed-Lok (4 pages)
- Yield-Pro Planters Refuge Hopper Kit (6 pages)
- Yield-Pro Planter Manifold Air Release Kit (3 pages)
- EHPR Valve Calibration (6 pages)
- Full Press Drill Post Conversion (7 pages)
- Fertilizer Arm Kits (20 pages)
- PTO Kits 2-3-Section (100 pages)
- Hydraulic Depth Stop (4 pages)
- Seed Flap and Tube Kit 00 Series Openers (2 pages)
- Yield-Pro Unit-Mount Coulter (16 pages)
- Trash All Series Openers (2 pages)
- 705NG (8 pages)
- Inline Ripper Gauge Wheel Jack Kit (7 pages)
- DICKEY-john IntelliAg Planter-Drill Control L1 (37 pages)
- Auto Reset Bolt Retainer (3 pages)
- Universal Acre Meter (12 pages)
- Air-Pro Planters Actuator Field Kit (6 pages)
- CDS-JohnBlue NGP Series Pumps (24 pages)
- Yield-Pro Planter Seed Tube (6 pages)
- 1515 Marker Option (10 pages)
- Frame-Mounted Coulters (6 pages)
- Shank Holder Clamp Bolt Update (1 page)
- PD8070 (10 pages)
- YP Fertilizer Ground Drive Update (12 pages)