309 Ezee-On 1600 Double Offset Disk
310 International Harvester 596 Tandem Disk Harrow
Summary of Ezee-On 1600 Double Offset Disk (Evaluation report - PDF File - 0.71 MB)
Functional Performance: The overall functional performance of the Ezee-On 1600 double offset disk was good. Performance was reduced by plugging between the scrapers and bearing hangers in moist trash.
Quality of Work: Penetration was very good in all soils when the maximum disk angle was used. Depth of penetration was uniform in most conditions but was variable in hard dry soils.
Trash clearance was good in most conditions, however, some plugging occurred in moist fields and in fields with sod lumps. The Ezee-On 1600 buried 60 to 80% of the trash during one operation.
Furrow bottom ridging occurred only when the disk harrow skewed to one side when operating in hilly fields. Stability was improved by increasing the depth of the rear gangs.
Ease of Operation: Ease of placing the Ezee-On 1600 in transport was poor requiring more than five minutes. Swinging the hitch into transport was difficult unless a hydraulic cylinder was used. The Ezee-On 1600 was stable and towed well at normal tractor transport speeds. However, the 14.8 ft (4.5 m) height and the combined width of the tractor and the 17.2 ft (5.3 m) machine required caution in transport.
Ease of hitching to the Ezee-On 1600 was very good.
The disk harrow was easily maneuvered in the field.
Ease of Adjustment: Levelling the wing section was inconvenient as two men were required. Front-to-rear levelling was adequate and convenient. Tillage depth was easily set and maintained. The disk gang bolts required special tools for tightening.
Power Requirements: In most soils a tractor with 237 hp (176 kW) maximum power-take-off rating will have sufficient power to pull the 26.4 ft (8.0 m) wide Ezee-On 1600 at 5 mph (8 km/h) and 4 in (100 mm) depth with disk angles set at 22°.
Safety: The Ezee-On 1600 was equipped with a mechanical depth control lock for safe towing. A wing transport lock was not required as the wing rested firmly on the main section. A slow moving vehicle sign and hitch safety chain were not provided. Extreme care was needed when placing the disk harrow in transport as the wing reached a height of 17.5 ft (5.4 m), which is high enough to contact rural power lines. Rear visibility while transporting was unsatisfactory. The tires were adequately sized for safe transporting at normal tractor speeds.
Operator Manual: The operator manual was complete and clearly illustrated.
Mechanical History: A few mechanical problems occurred during the 125 hours of field operation. The front main section gang beam was bent when the disk harrow hit a large submerged rock.
Summary of International Harvester 596 Tandem Disk Harrow (Evaluation report - PDF File - 0.52 MB)
Functional Performance: The overall functional performance of the international Harvester 596 tandem disk harrow was very good. Performance was reduced by inadequate penetration in hard dry native grasses.
Quality of Work: Penetration was good in most soils but was inadequate in dry native grasses. Depth of penetration was uniform in most conditions.
Trash clearance was very good and 60 to 80% of the trash was buried during one operation.
Furrow bottom ridging occurred only when the disk harrow skewed to one side when operating in hilly fields. Stability was improved by increasing the depth of the rear gangs.
Ease of Operation: Ease of placing the International 596 into transport was good requiring one man less than two minutes. The International 596 was stable and towed well at normal tractor transport speeds. The test machine was 15.3 ft (4.7 m) wide and 11.4 ft (3.5 m) high in transport, which is well below most prairie power lines.
Ease of hitching to the International 596 was very good.
The tires on tractors with dual wheels caught on the hitch members when turning sharp corners.
Ease of Adjustment: Levelling the wing sections was convenient. Front-to-rear levelling was adequate, but inconvenient as two men were required. Tillage depth was easily set and maintained. The disk gang bolts required special tools for tightening.
Power Requirements: In most soils, a tractor with 203 hp (151 kW) maximum power-take-off rating will have sufficient power reserve to pull the 25.1 ft (7.7 m) wide International 596 tandem disk harrow at 5 mph (8 km/h) and 4 in (100 mm) depth.
Safely: The International 596 was equipped with mechanical depth control and wing transport locks for safe towing. A slow moving vehicle sign was not provided. A hitch safety chain was provided. Rear visibility while transporting was very good. The tires were adequately sized for safe transporting at normal tractor speeds.
Operator Manual: The operator manual was concise and clearly illustrated.
Mechanical History: A few mechanical problems occurred during the 144 hours of field operation. Poor weld quality resulted in one wing wheel support weld failure. One hydraulic hose failed. |