Service Manual

GSM-205-523
6-monthly maintenance procedures
31st Oct 01
Maintenance Information: Horizon macro indoor
68P02902W09-B
CONTROLLED INTRODUCTION
Maint. 1–5
6-monthly maintenance procedures
Type of
procedures
The 6-monthly maintenance procedures involve the following:
 Cleaning air inlets and exhaust grilles.
 Examining and, if necessary, replacing the optional air filter.
WARNING
Potentially lethal voltages and high energy sources are
present in the cabinet when the external ac mains isolator
switch is set to the on position and/or batteries are
connected. Remove rings, watches and jewellery before
starting these procedures, and exercise extreme caution
when working on the equipment.
Cleaning inlets
and exhaust
grilles
CAUTION If the cabinet is operational, this maintenance procedure
should be completed without delay, in order to minimize
duration of air cooling disruption.
Inlets are along the back, sides and front at the base of the cabinet. Air is
expelled through the door vent and through the top panel beneath hood or
stacking bracket.
The following procedure should be followed to clean inlets and exhaust grilles:
 Use vacuum cleaner or brush to ensure bottom inlets are clear of debris.
 Open door and clean aluminium door vent, taking care to avoid damage.
Replacing the
air filter
Air filters are an option and not essential in a clean environment. The single filter
is mounted under all the fan units. If clogged, fan airflow may be reduced,
straining fan motors and increasing noise.
 If a filter is fitted, remove two front M6 screws to allow filter holding plate to
drop down. Remove filter, examine and, if dirty, replace with a new filter.
 Replace filter (original or new) then lift up holding plate and secure with
the two M6 screws. Tighten to correct torque (see
Technical Description:
GSM-205-323
Overview and specifications).
 Close and secure the door.