AP Blot - SERVICE MANUAL
SECTION 3
MAINTENANCE PROCEDURES
Doc. N° MDS-AP-26-00-02
Rev.01
Date: 02.04.2009
Page 25
3.3.1.2.
Dilutor mechanism
This mechanism moves the syringe plunger (1) up and down in small steps. The movement is generated by a step
motor (2) which moves a special worm screw (3) inside a female plastic nut 4) fixed on a carriage (5) which runs along
a track (6) on 4 ball bearings. A shaft is mounted on the carriage (7) which then moves the syringe plunger (1). The
optic sensor (8) is mounted on the SIDILOP PCB and signals when the syringe plunger has reached the End line
(“home”) position.
3.3.1.3.
Valve mechanism/Syringe
The valve mechanism connects the Wash bottle to the rest of the hydraulic syringe-probe circuit through the peristaltic
pump.
The syringe movement is generated by the dilutor unit and the syringe is connected to the dispensing probe
WASH bottle
Dilutor unit
3
2
4
6
8
4
5
1
7
2
3
