03359nas|a2200409 i 4500 20260818114721.0 080499s1998 th uzm rtt 00| a1eng d .b1174697x AIT Thesis no. AE-98-4 Tasliman Further development of a tractor front mounted pineapple plant dressing machine using a hydraulic transmission system Bangkok : Asian Institute of Technology, 1998 69 leaves Thesis ; no. AE-98-4 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development An attempt was made to design a hydraulic power transmission and a mounting frame with hydraulic lifting mechanism to provide adjustable cutting height for a front mounted pineapple plant dressing machine previously developed. The machine had four blades of 0460 cm, with a spacing of 70-60-70 cm. The tractor used was a Massey Fergusson tractor MF 185. Power was taken from tractor pto through a chain-sprocket step-up transmission. Hydraulic motor used was a low speed and a step-up transmission was used to obtain high blade speed. The developed hydraulic transmission and lifting mechanism could perform well although still some improvements are needed. Field tests were conducted in pineapple plantation. Because of unsatisfactory performance using four blades, only two blades were used. Short time field testing revealed that the field capacity was 0.22 ha/h and field efficiency was 72.3%. Cutting effectiveness was 93%, plant damaged was 0.3%, and height of cut was 35.5 cm. Net torque to drive one blade at normal conditions was estimated to be 5.4 N.m. Maximum torque at motor shaft was 342 N.m. However, when blade shafts were wrapped and clogged by weeds and cut leaves, the machine was likely to stall. A long term testing is necessary to estimate the accurate field performance of the developed machine. Thesis (M.Eng.) - Asian Institute of Technology, 1998 Tractors Hydraulic equipment Salokhe, Vilas M., Chairperson Singh, Gajendra, Examination Committee Gee-Clough, D., Examination Committee Development of Undergraduate University (DUE) Project, University of Jember, Indonesia, Scholarship donor Asian Institute of Technology. Thesis ; no. AE-98-4 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B13092 .b1174697x mnait y 240411 0 990408 m a y 0 mnait mnait mnarc 20 40 Barcode : 30050120577068 CREATED : 1997-09-11 RECORD # : i12127504 LPATRON : 1015380 LCHKIN : 2003-02-14 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 2 TOT RENEW : 0 Barcode : 30050120577092 CREATED : 1997-09-11 RECORD # : i12127516 LPATRON : 1019707 LCHKIN : 2008-01-03 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 6 TOT RENEW : 0 Barcode : 30050120371421 CREATED : 2016-02-06 RECORD # : i13013713 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 48269 48269 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. AE-98-4 30050120577068 2026-08-18 11:47:21 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. AE-98-4 30050120577092 2026-08-18 11:47:21 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. AE-98-4 30050120371421 2026-08-18 11:47:21 2026-08-18 40