BrandTech Scientific Titrette - Manual (Page 56)

a
b
a
a'
56
Cleaning Dismantling instrument · Component replacement
a) Set the valve to 'Recirculate' and pull the valve lever
upwards (Fig. a).
b) Hold the titrating tube as shown in the figure. To dis-
connect the housing, press the titrating tube upwards to
the stop, then use gentle up and down motions to pull it
forward (Fig. b).
c) The titrating tube with integrated discharge valve should
be cleaned in an ultrasonic bath, or replaced.
a) Hold the piston rod and slowly pull the piston out from
the dispensing cylinder (Fig. a).
If it is difficult to move the piston open the top of
the instrument, clamp the mounting tool (teeth
point above) between the dispensing cylinder
and the top, and turn the hand wheel to move
the piston completely out of the dispensing
cylinder (Fig. a').
Note:
2.
Removing and Cleaning / replacing titration tube
(Note to structural change from serial-number 01K
on page 57.)
3.
Cleaning / replacing the piston/cylinder assembly
(Note to structural change from serial-number 01K
on page 57.)
The piston/cylinder assembly consists of a piston and a dispens-
ing cylinder with a valve block. If liquid is above the piston, then
the piston should be replaced. We always recommend to replace
the complete piston/cylinder assembly.