515 Case Model 90 Loader (for Case 2WD 90 Series Tractors)
553 Duetz-Allis 475 Front-End Loader
Summary of Case Model 90 Loader (for Case 2WD 90 Series Tractors) (Evaluation Report - PDF File - 0.41 MB)
Capacity: The lift capacity of the Case Model 90 front end loader ranged from 5500 lb. (2500 kg) at ground level to 2800 lb (1270 kg) at maximum height of 13.25 ft (3.975 m). Break out force was 4770 lbs (21,227N).
Rate of Work: Rate of work was dependent on the engine speed of the 2094 Case tractor. At the rated engine speed of 2100 it took 5.5 seconds to raise the loader from ground level to maximum height and 4.2 seconds to lower to ground. It took 5.1 seconds to dump the bucket.
Quality of Work: The Case 90 loader was effective for moving snow, manure, earth, and round bales, when fitted with optional round bale boom. Its performance was limited in slippery conditions due to a lack of ballast in the tractor tires.
Ease of Operation and Adjustment: The Case 90 loader was easy to operate, however, visibility over the hood of the tractor was limited and generally made accurate digging difficult. With a little practice, operators were able to accomplish work in an efficient and effective manner.
Power Requirements: The Case 90 Loader was compatible with Case 90 series tractors. The hydraulic systems and circuits were set up to match the closed centre circuits of the tractor.
Operator Safety: The Case Model 90 loader was safe to operate if normal safety precautions were followed.
Operator's Manual: The operator's manual was supplied on request and contained information on safety, specifications and operation. The manual was well written, illustrated and organized.
Mechanical History: Cracks developed around the bolt holes used to attach the optional bale boom to the bucket.
Attachment: The Case 90 loader was designed to be easily attached or removed from the tractor. It took one person about 10 minutes to attach or remove the loader.
Summary of Duetz-Allis 475 Front-End Loader (Evaluation Report - PDF File - 0.71 MB)
Rate of Work: Rate of work was dependent on the engine speed of the Deutz-Allis 7110 tractor. At the rated engine speed of 2100 rpm it took 8.5 seconds to raise the bucket from ground level to maximum height, and 5.5 seconds to lower to the ground. It took 3 seconds to dump the bucket from its retracted position. Lifting capacity was 2866 lb (1300 kg) at full height of 12.8 ft (3.9 m).
Quality of Work: The Deutz-Allis 475 was effective for moving manure, earth, and round bales. The front-end loader was equipped with optional bale grapples and bucket tynes. Its performance was complimented by the front wheel assist drive, and the synchromesh transmission of the Deutz-Allis 7110 tractor to which the loader was mounted. When moving round bales, the Deutz-Allis 475 was gentle and did not damage bales or twine. Quality of work was very good.
Ease of Operation: Digging, installing, bale handling, and lubrication were all rated very good. The single lever "joystick" mounted in the cab of the tractor made operation easy. Visibility was very good when compared to other makes of tractors due to the slimness of the engine hood. With practice, operators were able to accomplish work efficiently. Minimal adjustment and alteration to the Deutz-Allis tractor was required to install the loader. The optional bale handling grapple forks were easy to operate. All grease fittings were easy to get at and lubrication took 5 minutes.
Power Requirements: The Deutz-Allis 475 front end loader was compatible with the Deutz-Allis 71 series agricultural tractor. The hydraulic systems and circuits were set up to match the open centre circuits of the tractor.
Operator Safety: The Deutz-Allis 475 loader was safe to operate if normal safety precautions were followed. The optional grapple hooks allowed large round bales to be lifted to the maximum height of the loader without danger to the operator. Operator safety was rated as very good.
Operator's Manual: The operator's manual was excellent, and provided the operator with information on safety, specifications, operation, lubrication/maintenance, removal and installation. The manual was well written, illustrated, and presented. Special sections on service and setting up procedures were also included.
Mechanical History: the Deutz-Allis 475 was operated for 225 hours and no mechanical problems were encountered during that period. The optional grapple forks frame and bearing pillar bent the first time it was used. This sometimes allowed the forks to be placed in an over centre position, from which they could not be moved without the help of a person outside the tractor cab. |