SAFETY PRECAUTIONS
1 . Cautions for disassembly2. The least minimum caut ions for product disas-
(1) For the suspension-type set (No. of workers: 3sembly
to 5 including assistants)Y Secure a working space, arranged as wide as pos-
Y Take adequate measures in order not to dam-sible.
age the surface of the set or the filterY Prior to disassembling the set, protect the acrylic, using a
protection mat (vinyl sheet or blanket).surface with an air mat or the like.
Y When relieving the set from the condition ofY To prevent the thread ridges from being damaged,
suspension from the ceiling, do not tilt its mainuse an adequate screwdriver.
body too much by supporting its both sides,Y Many screws are actually used. Therefore, use
while the mounting hooks (top and bottom) aretwo or three containers where these screws can
released. (Reasons: If the main body is posi-be kept . Never disassemble the inner parts of the
tioned slantwise, a load is applied to its uppermodule (pipes, etc.).
part and there can be danger of making theY When lifting the module from the set, two persons
set fall down carelessly when the set is un-should stand on both sides of the module to hold
hooked.)the stable parts of the junction while they lift the
Y During disassembly, the allocation of person-module upright. (If dust or such foreign substance
nel should be such that suitable stands or plat-enters in between the module and the filter, moir*
forms are assuredly arranged to enable theor similar problems can arise. In addition, once it
personnel to support the set, standing on bothenters, it is necessary to take careful measures
sides of the set. For safety, it is preferable tonot to damage the contamination area while re-
provide for assistant personnel who can receivemoving contaminants.) [Please understand that the
the removed set.replacement of the module may call for an air-blast
Y During this removal work, support the set at itstreatment (air brush) in a clean room.]
frame with hands. Never touch the filter or glassComplementary caution) In particular, if a conduc-
surface. Assistant personnel on the front sidetive foreign matter (such as a metallic chip) is at-
should apply hands to the lower part of thetached to the flexible cable of the module, there
casing. [If the casing is strongly hit with acan be danger of the occurrence of a phenom-
wooden hammer or the like, the unseen sideenon like wire breakage that is caused by parti-
area of the module panel glass may be brokention breakdown in the module. For this reason, it
even though the module itself does not seemis necessary to bear in mind that the flow of air
to have been broken . Therefore , support theblast should be directed only in the predetermined
frame by hand in order not to drop it.]direction at all times.
(2) For the wall-hang type, corner type, or pole unit3. Method of returning the set (when returning the
mounting set (No. of workers: 2 <generally>)set to the manufacturing base in Japan)
Y Examining a good timing, release the mount-Y When returning the set, put the set in the speci-
ing hooks (top and bottom) from the right andfied package box.
the left.Otherwise, swinging and vibration Ioads may be
Y If the set is installed in an elevated place, pro-applied to the set during transportation, and this
vide for firm scaffolds in advance. It is prefer-may give rise to destruction of a mounting sec-
able to ask for the support of assistant person-tion, such as gas-hermetically-sealed pipe (glass)
nel as in the case of the suspension type.of the moduIe.
Y During this removal work, try to support the setY When optional parts are also put in the box for
at its frame with hands. Never touch the filterreturning, a list of options (accessories) should also
or glass surface. Assistant personnel on thebe produced and returned, if possible. This ar-
front side should apply hands to the lower partrangement is effective to confirm the owner of the
of the casing. [If the casing is strongly hit withreturned items.
a wooden hammer or the like, the unseen sideY To confirm the user-oriented problem, and for the
area of the module panel glass may be brokenpurpose of future improvements, a report of rea-
even though the module itself does not seemsons for malfunction should also be packed.
to have been broken. Therefore, support theA definite address should be specified so that the
frame by hand in order not to drop it.]repaired set can be returned and faulty phenom-
ena can be confirmed .
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ACEC
