YMC Europe GmbH
Cleaning and maintenance
YMC Pilot
40 / 49
Low pressure chromatography column
7.4
Replacement of spare parts
ATTENTION
Faulty assembly
Damage to the glass body possible due to faulty assembly.
► Take care during the assembly of the glass body that the maximum torque is not
exceeded: 2.2 Nm for columns with 100 mm ID, 4.2 Nm for columns with 140 and
200 mm ID and 7.0 Nm for columns with 300 mm ID.
► Assemble the cylinder screws in a diagonal pattern and always tighten on the
opposite sites.
► Take care during assembly of the glass body that all parts are correctly aligned.
7.4.1
Frit replacement
The frits in the adjustable and fixed end pieces are replaced as follows:
1. Remove the end piece Chapter 6.3, p. 27.
2. Remove the screws in the frit.
3. Remove the frit.
4. Insert the new frit.
5. Tighten the screws in the frit.
7.4.2
O-ring plunger replacement
The O-ring plunger is replaced as follows:
1. Remove the end piece Chapter 6.3, p. 27.
2. Loosen the O-ring plunger completely.
3. Remove the O-ring over the plunger in the direction of the frit.
4. Place the new O-ring over the plunger so that it is in the notch between
plunger and pressure piece.
