WORKSHOP MANUAL
EDITION
PAGE
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124
Engine
ST 450
(TRE 0701)
ST550
(TRE 586VA)
ST550
(TRE 586VA)
Honda
GCV530
Number of cylinders / Displacement n / cc 1 / 452 2 / 586 2 / 586 2 / 530
Drive 2WD 2WD 4WD 4WD
Power kW 8.1 11.9 11.9 11
Engine revolutions rpm 3200 3200 3200 3200
Manual choke control autochoke yes yes yes
Electrical system 12 V 12 V 12 V 12 V
Battery VRLA VRLA VRLA VRLA
Fuel Unleaded petrol
Fuel tank capacity litres 12 12 12 12
Engine oil SAE 10W-30
Engine oil, service class SF / SG or higher
SJ or
higher
Engine oil change quantity, without filter re-
placement
litres 1.2 1.7 1.7 1.1
Engine oil change quantity, with filter replace-
ment
litres – 1.8 1.8 1.2
Rear transmission Tuff Torq K57V K57V K574T K574T
Front transmission Tuff Torq / / KTM10M KTM10M
Transmission Oil 5W-50 5W-50 5W-50 5W-50
Transmission oil change quantity litres 1.3 1.3 3.6 3.6
Spark plug (or equivalent)
Champion
QC12YC /
RC12YC
Champion
RN9YC
Champion
RN9YC
BPR5ES
(NGK)
W16EPR-U
(DENSE)
Spark plug, electrode distance mm 0.6÷0.8 0.6÷0.8 0.6÷0.8 0.7÷0.8
Tyres dim. 16x7.50-8 16x7.50-8 16x7.50-8 16x7.50-8
Front tyre pressure bar (psi) 0.6 (9.0) 0.6 (9.0) 0.6 (9.0) 0.6 (9.0)
Rear tyre pressure bar (psi) 0.4 (6.0) 0.4 (6.0) 0.4 (6.0) 0.4 (6.0)
Speed (indicative), forward km/h 10 10 10 10
Speed (indicative), in reverse km/h 6 6 6 6
Weight kg 160÷200
Measured sound power level dB(A) 99 100 100 99
Uncertainty dB(A) 0.38 0.63 0.63 0.61
Guaranteed sound power level dB(A) 100 100 100 100
Acoustic pressure level dB(A) 85 86 86 85
Uncertainty dB(A) 0.43 1.09 1.09 0.34
Operator position vibration level m/s
2
0.6 0.7 0.7 0.7
Uncertainty m/s
2
0.33 0.23 0.23 0.22
Vibration level on the steering wheel m/s
2
3.4 2.6 2.6 2.4
Uncertainty m/s
2
1.06 0.72 0.72 1.04
Cutting decks available 95 -105 -100
95 - 100
105 - 110
95 - 105
100-110-125
95 - 100
105 - 110
Connectivity Optional Optional Optional Standard
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