AS 1334.13:2017 pdf free.Methods of testing conveyor and elevator belting Method 13: Determination of indentation rolling resistance of conveyor belting.
5.2 Alignment
The drive pulley, takeup pulley, idler rolls and test idler roll shall-
(a) support the test belt in a horizontal plane to a vertical tolerance of ±0.5 mm: and
(b) be adjusted such that they are perpendicular to the axis of the test belt.
5.3 Balancing
5.3.1 General
Balancing of all rotating components shall be conducted in accordance with ISO 1940-1.
5.3.2 Drive pulley anti takL’up pulley
The drive pulley and takcup pulley shall be statically balanced to be within an out of
balance limit of 2.7 Nm.
5.3.3 Test idler roll
The test idler roll shall be balanced to a grade of G2.5.
5.3.4 Support idler rolls aisci deflection rolls
The support idlers rolls and the deflection rolls shall be balanced to a grade of G6.3.
6 BELT SAMPLES
6.1 Sampling
Test belt samples for indentation rolling resistance testing may either be—
(a) cut from full width conveyor belt; or
(b) specially manufactured with one or more materials incorporated into the pulley and carry covers.
6.2 Preparation
The test belt shall be prepared to a minimum width of 400 mm with a tolerance of ±5 mm. The test belt sample shall be formed into a loop and spliced to form a loop that shall be an appropriate length for the intended test machine.
The test belt shall be smooth to avoid damaging the force transducers. The test belt shall not be mechanically spliced.
The test belt sections shall have a uniform thickness with a tolerance of ±0.5 mm.
6.3 Conditioning
6.3.1 General
The test belt shall be conditioned prior to testing. The test belt shall not be tested prior to 5 days after manufacture.
NOTE: Conditioning may occur during this time.
6.3.2 (‘on Iro lied tempera lure en iiron men I
The test belt shall be conditioned at each test temperature for a period of not less than 16 h immediately prior to testing.
6.3.3 Uncontrolled ambient temperature en vironmnent
The test belt shall be conditioned by operating at the highest intended test speed for a period of 1 5 mm. The test belt surface temperature recorded at the end of the conditioning procedure shall be the test temperature.AS 1334.13 pdf download.