AS ISO 6747:2021 - Earth-moving machinery -Dozers - Terminology and commercial specifications

AS ISO 6747:2021 – Earth-moving machinery -Dozers – Terminology and commercial specifications.
3.3.4.1
longitudinal static slope capacity
maximum slope, expressed in degrees, that the machine can achieve longitudinally (i.e. orientated at 0 and 1809 during the static slope evaluation without exceeding performance parameters
ISOLJRCE: ISO 10266:1992, 3.SJ
3.3.4.2
lateral static slope capacity
maximum slope. expressed in degrees, that the machine can achieve laterally (i.e. orientated at 90 and 2709 during the static slope evaluation without exceeding performance parameters
ISOURCE: ISO 10266:1992, 3.61
3.3.5 WInch performance
3.3.5.1
line pull
winch pull force measured at engine rated speed with full drum and bare drum
3.3.5.2
line speed
winch speed measured at engine rated speed with full drum and bare drum
3.3.6
brake system
all components which combine together to stop and/or hold the machine, including the brake control(s), brake actuation system, the brake(s) themselves and, lithe machine is so equipped, the retarder
ISOLJRCE: ISO 3450:2011,3.11
3.3.7
brake system
all the components that combine to stop and/or hold the machine, including the control(s), the brake actuation system, the brake(s) and all parts connecting the brake to the track
ISOURCE: ISO 10265:2008, 311
3.3.8
turning radius of wheeled machines
turning radius of wheeled machines as determined in accordance with ISO 7457
4 Base machine
4.1 Type of dozer
Dozers shall be classilied according to the following attributes.
4.1.1 Undercarriage
4.1.1.1 Crawler type dozer See Figure 10.
5Commercial literature specifications
The following is applicable for specification in commercial literature.Units of measure shall be expressedin Sl units (International System).
5.1 Engine
The following shall be specified:a)manufacturer and model;
b]ignition type (i.e. diesel or spark-ignition);ctype of cycle (i.e. two or four stroke);
d) form of air aspiration (i.e.naturally aspirated, mechanically supercharged or turbocharged);enumber of cylinders;
fbore;
g)stroke;
h)displacement;
i)cooling system (i.e.air or water cooled);jtype of fuel;
k)net power according to lSO 9249;
rated engine speed according to lS0 9249;
m) maximum torque at a given engine speed;n)starter type;
oelectrical system voltage.5.2Transmission
The following shall be specified, as applicable:
a)type of transmission, for example:
-manual shift with flywheel clutch;
-powershift with torque converter;hydrostatic;
—electric;
b)number of speeds (forward and reverse);
maximum travel speeds [a graph of rimpull versus speed should be shown).
5.3 Hydraulic system5.3.1working pumps
The following shall be specified:a)type;
b)pump at a given pressure, at rated engine speed.5.3.2Motor(s)
The type and function of the hydraulic motor[s) shall be specified.5.3.3 Hydraulic pressure
5.3.3.1 working circuit pressure
That nominal pressure applied to the specific circuit by the pump[s) shall be specified.5.3.3.2 Holding circuit pressure
The maximum static pressure in a specific circuit, limited by a relief valve at a flow no greater than 10 %of the rated circuit flow,shall be specified.
5.4System fluid capacities
The following information shall be specified, as applicable:a) fuel tank;
b)engine crankcase;cooling system;d)transmission;e)differential;ffinal drive;
g)hydraulic system.5.5 Blade specification
The blade type and dimensions shall be specified fora)angle dozers, and
b)straight dozers.5.6Masses
The following masses shall be specified:a)operating mass;
b) shipping mass.
5.7Overall dimensions
The overall dimensions shall be specified.5.8 Crawler machines
5.8.1Steering and brakingFor example:
-type (drum, disc, wet or dry);
-actuating system (hydraulic, mechanical).5.8.2 Final drives
For example:
-type (single or double reduction, planetary);-ratio;
—lubrication.
5.8.3Track and rollerFor example:
-track pitch;-width of shoe;
grouser height;
ground contact area [L2 × 2 (W4)];-number of track rollers (each side].5.8.4Average ground contact pressure
Average ground contact pressure (ISO 16754) shall be specified.5.9 Wheeled machines
5.9.1 Driving axle (specified type)For example:
-fixed vs. oscillating;
bevel gear and pinion;- differential;
– hydrostatic;
planetary final drive.
5.9.2Steering (specified type)According to lSO 5010.For example:-manual, hydrostatic;
-articulated;
-emergency steering system;
-performance: turning radii, left and right, etc.5.9.3 Brakes
5.9.3.1Service brakesFor example:
– type (drum, disc, wet or dry);
-actuating system type (full air, full hydraulic, air over hydraulic, etc.).5.9.3.2Secondary brakes
For example:
– type;
-actuating system.5.9.3.3 Parking brakeFor example:
– type;
-actuating system.5.9.4 Tyres
For example:- size and type;-tread;
-ply rating:- rim size.