© Tinius Olsen Ltd
L-Series Manual – Issue 1
Page 28 of 31
Tooling alignment is extremely important to obtain realistic measurements. Misalignment
distorts the test sample leading to irregular loading and in extreme cases generates large errors
in extension measurement. Alignment problems can be greatly reduced by the method used to
tighten the attachment and tooling locking collars.
Ensure the fixed crosshead tooling is parallel to the crosshead. Whilst held in this position lightly
tighten both attachment and tooling locking collars. Repeat this procedure for the tooling
attached to the load cell. Check alignment in all three axis. If alignment is out , loosen the
tooling locking collars, reposition tooling and retighten collars. Repeat this procedure until the
tooling is aligned. Fully tighten the fixed crosshead locking collars with the breaker bar supplied.
Care must be taken when tightening locking collars attached to a load cell as lower capacity
load cells can be damaged from excess torque. To minimise risk of damage ensure the
sensitive area of the load cell is supported when tightening these locking collars. The same
care must be taken when removing tooling from the load cells.
As a general rule load cell capacities from 25 to 100N only require locking collars finger tight.
Load cells from 200N to 2kN should be lightly tightened with breaker bar. Load cells from 5kN to
10kN can be fully tightened with breaker bar, and above 10kN the breaker bar limits torque that
can be applied. Note Load cells below 25N can be damaged by handling alone. When
installing low capacity load cells, extreme care must be taken.
