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Apeks Regulator Service and Repair Manual
INTRODUCTION
Apeks regulators are the product of many years of research
and development. Apeks has utilized proven materials
and design to maximize reliability and performance.
This manual is intended only as a guide for the experi-
enced repair person that has completed a Sea Quest/ Apeks
service and repair seminar. It is not intended to educate
inexperienced repair personnel or the consumer in all as-
pects of Apeks regulator repair. Sea Quest/Apeks repair
seminars are available periodically to Authorized Sea Quest
Dealers. Servicing and repair at the repair shop level
mainly involves cleaning, inspection, adjustment, and re-
placement of worn parts.
If you have any questions on any of the procedures, in-
spections, or tests, please contact Sea Quest at:
(877) 253-3483.
SAFETY PRECAUTIONS
This manual provides step by step instructions for the dis-
assembly, inspection, cleaning, reassembly, and testing of
the Apeks second stage regulator. It is recommended that
all steps are followed in the order given. Read each sec-
tion completely PRIOR to beginning work described in
that section. This will familiarize the repair technician
with important precautions to take during each service pro-
cedure.
Pay close attention to all WARNINGS, CAUTIONS, and
NOTES that are intended to draw your attention to items
of importance.
Definition of Warnings, Cautions, and Notes:
Indicates a procedure or situation that may result in
serious injury or death for either the technician or
the user if instructions are not followed correctly.
Indicates any situation or technique that may result
in potential damage to the product, or render the
product unsafe if instructions are not followed cor-
rectly.
Is used to emphasize important points and
NOTE
tips.
GENERAL PROCEDURES
MAINTENANCE SCHEDULES
Regulators are subjected to a variety of environmental el-
ements that over time can affect the performance of the
product. As an Authorized Sea Quest/Apeks Dealer you
are advised to inform your staff and customer that Sea
Quest/Apeks regulator require complete servicing at least
once a year. Under certain circumstances a complete ser-
vicing is required every 3-6 months. Some of these cir-
cumstances are:
Frequent or improper use
Inadequate routine freshwater rinsing
Regulator use in dirty or polluted waters
Rental use
Regular use in chlorinated (pool) water
Recommended maintenance schedules are based on aver-
age use under normal conditions and assume that recom-
mended preventative maintenance and storage procedures
have been followed as outlined in the Sea Quest/Apeks
owner's manuals.
Advise the customer that any adjustments or servicing on
Sea Quest/Apeks regulators must be performed by Sea
Quest, or by an Authorized Sea Quest/Apeks Dealer that
has attended a Sea Quest authorized service seminar.
INITIAL INSPECTION AND PRE-TEST
Prior to beginning the servicing of the regulator, a pre-
liminary inspection and pre-test of the entire breathing sys-
tem is recommended. This will help the repair technician
identify any problems that may affect the second stage.
Preliminary inspection should include:
First stage inlet filter - If the first stage inlet filter is
discolored, the entire regulator should be completely ser-
viced. Deposits of rust (red powder) or aluminum oxide
(gray powder) on the filter may indicate that water has
entered the SCUBA cylinder and caused internal cylinder
corrosion. The customer should be notified that their
SCUBA cylinder(s) may be in need of visual inspection,
cleaning and testing. Advise your customers to regularly
inspect the inlet filter for any discoloration or corrosion.
High pressure (HP) and low pressure (LP) hoses -
Inspect the hoses carefully for any evidence of cracking,
tearing, or excessive abrasion of the outer rubber cover-
ing. Remove all of the hose protectors and examine the
area around the metal fittings for any damage to the hose.
Inspect the fittings for signs of excessive corrosion.
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