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Machine-21/360 PRIYA POWER WEEDER, Model: PFTT-32”
(Self Propelled, Walk-behind) [Commercial-ICT] i
S.R. FARM MACHINERY TRAINING & TESTING INSTITUTE, GARLADINNE, DISTRICT:
ANANTAPUR (A.P.)
Manufacturer : ATUL INDUSTRIES,
Mayur Nagar,
Halvad Road,
Plot No. 10/11(K)
Dhrangadhra – 363 310
District: Surendranagar
(Gujarat)
PRIYA POWER WEEDER, Model: PFTT-32” (Self Propelled, Walk Behind)
Report No.: Machine-21/360 Month: July Year: 2012
GOVERNMENT OF INDIA
SOUTHERN REGION FARM MACHINERY
TRAINING AND TESTING INSTITUTE
TRACTOR NAGAR
PO: GARLADINNE – 515 731
DISTRICT: ANANTAPUR (A.P)
Telephone: 08551-286441 Fax: 08551-286441
Website: www.srfmtti.dacnet.nic.in E-mail: [email protected]
Machine-21/360 PRIYA POWER WEEDER, Model: PFTT-32”
(Self Propelled, Walk-behind) [Commercial-ICT] 18
S.R. FARM MACHINERY TRAINING & TESTING INSTITUTE, GARLADINNE, DISTRICT:
ANANTAPUR (A.P.)
15.4 Ring side clearance: -
S. No. Rings Ring side clearance (mm) Max. permissible limit (mm)
1. 1st Comp 0.03 0.30
2. 2nd
Comp 0.03
3. Oil Ring 0.08
15.5 Main & Big end Bearings: -
Main Bearing:
Bearings Diametrical
clearance (mm)
Crank shaft
end float
(mm)
Max
permissible
limit (mm)
1 Ball bearings 0.09 0.45
2 Ball bearings
15.6 Big end bearings: -
Clearance (mm) Max. permissible limit (mm)
Diametrical Axial Diametrical Axial
0.04 0.37 0.246 0.450
Valve, guides and timing gears
Pitting of seat/faces of valves : None
Any visual damage to the teeth : None
of timing gears
Clearance between valve guides
and valve stem (mm)
- Intake valve : NTR
- Exhaust valve : NTR
Condition of magneto : Satisfactory
15.7 Transmission case:
All the chains & sprockets in the transmission were inspected visually and found in normal
working condition.
16 SUMMARY OF OBSERVATIONS, COMMENTS AND
RECOMMENDATIONS.
16.1 Engine Performance Test: -
(i) The backup torque is 9.3 %.
Machine-21/360 PRIYA POWER WEEDER, Model: PFTT-32”
(Self Propelled, Walk-behind) [Commercial-ICT] 19
S.R. FARM MACHINERY TRAINING & TESTING INSTITUTE, GARLADINNE, DISTRICT:
ANANTAPUR (A.P.)
(ii) The maximum brake horse power of the engine at 3550 rpm was observed as 2.8 kW
against the declared value of 2.9 kW(as per manual).
(iii) The rated horse power of the engine at 3600 rpm was observed as 2.7 kW against the
declared value of 2.9 kW(as per manual).
(iv) The specific fuel consumption corresponding to maximum power was recorded as
0.406 kg/kWh against the manufacturer’s declaration of 0.370 kg/kWh.
16.2 Mechanical Vibration:
The amplitude of mechanical vibration on most of the controls/assemblies marked as
(*) in chapter 10 of this test report are very high. This calls for dampening down of
vibration to improve the operational comfort and service life of components.
16.3 The hardness of blades at edge portion was recorded on lower side than the specified
limits of relevant Indian Standard. This should be looked into.
16.4 The chemical composition of material used for blade does not meet in full the
requirements of relevant Indian Standard. The material of blade should be used as per
the requirement of relevant Indian Standard.
16.5 Field Performance Test:
16.6 Rate of work: The average area covered was recorded as 0.108 to 0.163 ha/h with
corresponding forward speed of 2.45 to 2.84 kmph and time required to cover one
hectare area was recorded as 6.13 to 9.26 h.
16.7 Quality of work: The average depth of cut was recorded as 5 to 7 cm and weeding
efficiency was recorded as 86.0 to 98.5%.
16.8 Labour requirement: For continuous operation of the weeder for 4.0 hours one
skilled operator found sufficient.
16.9 Wear of Critical Components: The hourly percentage wear of blade flanges on mass
basis was recorded as 0.16 to 0.26 %.
16.9 Maintenance/Service Problems:
No noticeable maintenance/service problem was observed during the tests.
16.10 No name plate is riveted on the power weeder. However, the manufacturer is
recommended to provided the name plate containing following information:
- Make
- Model
-Year of manufacture
-Serial No.
- Size of weeder
- Power requirement, and
- Address of manufacture
16.11 Adequacy of Literature:
The Owners Manual in English and Gujarati was supplied with the test sample. It is
recommended that suitable technical literature such as operator’s manual, service manual and spare parts list etc., of the machine as well as engine should be brought out
in the vernacular languages for the guidance of users.
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