Avery Berkel CX20 SERIES, Service Manual

Page: 38 / 353

3 — Disassembly and Assembly
3–3 CX20/CX30/CX34 Service Manual
3.1 Introduction
Before proceeding to service the machines please read the Safety Warnings in
the Overview section (Page xv).
3.2 Servicing the CX20/CX30
WARNING
HIGH VOLTAGES EXIST INSIDE THE UNIT. BEFORE
REMOVING THE COVER, ENSURE THAT MAINS POWER
IS DISCONNECTED COMPLETELY. EXCEPT WHERE
SPECIFIED IN THESE PROCEDURES, DO NOT APPLY
POWER TO THE UNIT WHEN THE COVER IS REMOVED.
Refer to Figures 2.1 and 2.2.
3.2.1 Removing the case
To remove the case of the CX20/CX30 and gain general access to the unit
interior, proceed as follows:
1 Switch off machine and isolate from the mains power supply. Refer to
Safety Warnings on Page xv in Overview section.
2 Remove weighplate plate (lift).
3 Remove ticket mouth (unclip and lift off).
4 Remove Posidrive screw from within ticket aperture.
5 Open printer door. (Door may be removed by unclipping it from the two
hinge clips: open printer door to a horizontal position and push down
firmly on the printer door near the hinge clips.)
6 Release case by removing two Posidrive screws in underside of
machine, located towards the left–hand side at the front (vendor) edge.
7 Release case by unclipping it from four snap–fit locations at rear
(customer) edge. Lift case a short distance from rear, then detach it
from the three locations at the front edge.
8 Carefully rotate case about front edge, so that rear edge is lifted over
unit and to front, and so that case is upside down: avoid straining any
electrical connections between case and unit.
9 Remove blank plate at left side of machine.
10 Disconnect flying connector for keyboard.
11 Disconnect case earth strap by removing its spade connection at
chassis secondary earth.