Galaxy AX500 Guide

Galaxy Manual 1/7/15 Page 1 of 33
Galaxy
CARPET SOIL EXTRACTOR
SAFETY, OPERATION & MAINTENANCE
INSTRUCTIONS
MODELS: AX500 GALAXY
CAUTION – READ THE INSTRUCTION MANUAL BEFORE USING THE APPLIANCE

Galaxy Manual 1/7/15 Page 2 of 33
MACHINE DATA
MODEL NO.
SERIAL NO.
DATE OF PURCHASE
DISTRIBUTOR NAME
DISTRIBUTOR TEL NO.
MANUFACTURER CONTACT
Prochem Europe Ltd.
Oakcroft Road,
Chessington,
Surrey KT9 1RH, UK
Telephone: + 44 (0)20 8974 1515
Fax: + 44 (0)20 8974 1511
Email: [e-mail]
Website: www.prochem.co.uk
All information and specifications in this manual are current at the date of issue. However, because
of Prochem Europe policy of continual product improvement, we reserve the right to make changes at
any time without notice. Please note that this manual applies to all models and explains variations
including accessories used. Therefore, you may find some explanations for variations and options
not installed on your equipment.

Galaxy Manual 1/7/15 Page 3 of 33
CONTENTS
PAGE NO.
WARRANTY
5
IMPORTANT SAFETY INSTRUCTIONS
6
IMPORTANT OPERATING INSTRUCTIONS
7
GENERAL OPERATING INSTRUCTIONS
8
UNDERSTANDING YOUR SOIL EXTRACTOR
9
ACCESSORIES & CHEMICALS
10
CONDENSED OPERATING INSTRUCTIONS
11
PRACTICAL CARPET CLEANING
12
GENERAL MAINTENANCE
13
TROUBLESHOOTING SECTION
15
DISASSEMBLY SECTION
21
MACHINE PARTS DIAGRAM & PARTS LIST
23
WAND PARTS LIST
28
PUMP PARTS LIST
29
HAND TOOL PARTS LIST
30
WIRING DIAGRAM
32
CE DECLARATION OF CONFORMITY
33

Galaxy Manual 1/7/15 Page 4 of 33
This product is marked according to the European Directive (2002/96/EC) on
Waste Electrical and Electronic Equipment (WEEE).
The symbol on this product indicates that this product must not be disposed of
with normal household waste. Please protect human health and the
environment by disposing of this product responsibly in the correct manner.
For further information regarding the disposal, treatment, recycling and
recovery of this product, please contact:
Prochem Europe Sales Department
Telephone: [phone]
Prochem Europe Ltd. EEE Producer Registration Number: WEE / AJ0044SY
European Directive (2011/65/EU) Restriction of use of certain Hazardous
Substances in Electrical and Electronic Equipment (RoHS2).
This equipment does not contain more than the maximum permitted levels by
weight of the following substances:
Lead (Pb), Mercury (Hg), Cadmium (Cd), Hexavalent Chromium (Cr (Vl)),
Polybrominated Biphenyls (PBB), Polybrominated Diphenyl Ethers (PBDE)

Galaxy Manual 1/7/15 Page 5 of 33
MACHINE WARRANTY
DATE EFFECTIVE: 1/7/15
As of the above date, this warranty supersedes all previous warranties and forms part of the contract of sale.
Prochem Europe Ltd. (hereafter referred to as “Prochem”) guarantees this machine to be free from defects in materials and
workmanship for the relevant time period as shown below, and from the actual date of purchase by the user. Proof of the
purchase date from a Prochem Authorised Distributor will be required for performance of this warranty.
Rotationally moulded polyethylene tanks ……………………………………………………………………………………2 Years
All other parts except maintenance items (see below) …………………………….………………………………………..1 Year
THIS WARRANTY EXCLUDES NORMAL MAINTENANCE ITEMS, including but not limited to HOSES, FILTERS, O-RINGS,
DIAPHRAGMS, VALVES, DRIVE BELTS, GASKETS, CARBON BRUSHES and damage to motors and other components as a
result of failure to replace normal maintenance items. THIS LIST IS NOT EXHAUSTIVE.
To obtain performance of this warranty, contact the Prochem Authorised Distributor who supplied the product.
The Prochem Authorised Distributor is responsible as the selling agent for the provision of initial training in the
correct use and application of the machine and approved chemicals. The distributor is also responsible for service
maintenance and repairs during and after the warranty period and the administration of any warranty claims in
conjunction with the Prochem Service Department. Failure of any of these provisions and responsibilities may
invalidate the warranty and the authorised status of the distributor.
If Prochem receives notice of any defects during the warranty period, Prochem reserves the right to either repair, or replace
components that prove to be defective. Goods must be returned before the warranty is approved. Goods sent out prior to the
return of faulty items will be invoiced at current prices, subject to standard payment terms (see Prochem Standard Terms and
Conditions of Sale). Replacement parts supplied under warranty will be guaranteed for the remainder of the original machine
warranty and NOT from the date of installation. Spare parts supplied after expiry of machine warranty may be covered by a
manufacturer’s warranty, subject to inspection by Prochem Europe Ltd. and at its sole discretion. Normal maintenance items,
however, are not covered. Replacement or credit of any returned parts will be at the discretion of the Prochem Service
Department. Any subsequent refusal to accept their decision will serve to invalidate this warranty with immediate effect.
PROCHEM AUTHORISED DISTRIBUTORS are responsible for machine and accessories service back up during and after the
warranty period. Prochem will furnish parts if the warranty is approved, but DISTRIBUTORS will be responsible for fitting,
service, labour and related charges including travel, if applicable, and the cost of returning the machine or parts to Prochem. If
any chargeable work is undertaken by Prochem for DISTRIBUTORS the labour, parts (if applicable) and return carriage will be
charged at FULL LIST PRICE. If warranty is approved due to genuine manufacturing defect, then labour charges and carriage
charges may be waived at Prochem’s discretion.
Prochem may send replacement parts to customers supplied by a DISTRIBUTOR or directly by Prochem, subject to the same
conditions of replacement and payment above. The customer, however, will be responsible for fitting, labour and the carriage
costs of returning repaired parts. Alternatively, Prochem will undertake warranty work at Chessington, subject to the same
conditions, but the customer will be responsible for all carriage charges.
Any of the following circumstances involving the machine will serve to invalidate this warranty:-
NORMAL WEAR, ACCIDENTS, USE OF THE MACHINE FOR A PURPOSE OTHER THAN THAT FOR WHICH IT WAS
INTENDED, INCORRECT MAINTENANCE, THE USE OF CHEMICALS OTHER THAN THOSE SUPPLIED OR APPROVED
BY PROCHEM, INCORRECT INSUFFICIENT OR NON-USE OF DEFOAMER, EXPOSURE TO EXTREME TEMPERATURES
OR CONDITIONS, INCORRECT INSTALLATION OR REPAIR & UNAUTHORISED INTERVENTION.
Your Prochem unit is designed to give you many years of reliable service. If a problem should arise during or after the warranty
period, contact the Prochem Authorised Distributor or the Prochem Service Department, for details of the services available.
Only the original purchaser of the new equipment may seek performance of this warranty – these rights cannot be transferred
to a third party.
Prochem Europe Ltd.
Oakcroft Road, Chessington, Surrey KT9 1RH, ENGLAND
Telephone: + 44 (0)20 8974 1515 Fax: + 44 (0)20 8974 1511 Machine Warranty Issue 10 1/7/15
Liability is excluded for the following:-
All forms of damage and special damage founded in tort (apart from death and personal injury) and contract law including
but not limited to consequential loss, loss of income and losses incurred in reliance of the contract; service, labour or third
party charges and the cost of returning the machine or defective parts to Prochem or Prochem’s Authorised Distributor.
As against a person dealing as a consumer, this warranty creates specific rights in addition to any statutory rights, which
are unaffected. As against a person dealing otherwise than as a consumer, however, this warranty excludes any implied
term that the machine will correspond with a description or a product sample.
With the exception of some specific products which are labelled and intended to be used by a consumer, all equipment,
machinery, accessories, products, services and advice supplied by Prochem is intended for professional and industrial
use only.

Galaxy Manual 1/7/15 Page 6 of 33
IMPORTANT SAFETY INSTRUCTIONS
PLEASE READ THE FOLLOWING IMPORTANT SAFETY INSTRUCTIONS (!!)
BEFORE ATTEMPTING TO USE THIS MACHINE. FAILURE TO OBSERVE THE
INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
!! CAUTION
Read the instruction manual before using the
appliance.
!! SOUND PRESSURE LEVEL
The sound pressure of this machine, when in use,
does not exceed 85 dB (A).
!! APPLIANCE SUITABILITY
This appliance is suitable for commercial use, for
example, in hotels, schools, hospitals, factories,
shops, offices and rental businesses.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience or
knowledge, unless they have been given
supervision or instruction concerning use of the
appliance by a person responsible for their safety.
!! CHILDREN should be supervised to ensure they
do not play with the appliance.
!! FOR MAINS POWERED APPLIANCES during
cleaning and maintenance – the plug is to be
removed from the outlet socket.
!! TRAINING
You must be trained in the operation of this
machine before use. Please read this manual
carefully and obtain operating instruction from your
Prochem Distributor or authorised representative in
the correct use of this equipment and suitable
chemicals before attempting to clean.
!! REPAIRS
Should any repairs, including supply cord
replacement be required, we recommend that the
appliance be returned to an authorised dealer.
!! ELECTRICAL CABLE INSPECTION &
REPLACEMENT
This machine must be earthed while in use to
protect the operator from electric shock. It is
equipped with a sealed and approved EC three
conductor cable and three-prong 13A plug. If the
supply cord is damaged it must be replaced by a
special cord or assembly available from the
manufacturer or its service agent. During operation
a hazard may occur when running the machine over
the power supply cord. The power supply cord
should be regularly inspected for signs of damage.
If the power supply cord is damaged, it must be
replaced.
!! RCD CIRCUIT BREAKER
In common with other household and commercial
electrical equipment, an 'RCD' circuit breaker plug
device is strongly recommended for this type of
equipment.
!! EXTENSION CABLES
Avoid using extension cables with this machine. If
an extension cable is used it should be of a suitable
rating and no longer than 30 metres. Use only
three wire CE approved extension cable with CE
approved three-prong earthed plugs and three pole
receptacles that accept the machine 13 amp plug.
!! DO NOT use a multiple adaptor socket to connect
the machine and heating units or other devices to a
single extension cable.
!! DO NOT stand the machine in water to operate
such as during flood extraction.
SERIOUS INJURY OR DEATH MAY RESULT IF
MACHINE IS IMMERSED IN WATER!
!! DO NOT pull the machine by the power cable or
hoses.
!! DO NOT use this machine with or near flammable
vapours. These machines can ignite flammable
vapours such as fuels, solvents or thinners. Do not
use where oxygen or anaesthetics are used.
!! DO NOT operate the machine unless it is
completely assembled.
!! DO NOT attempt repairs or maintenance unless
you are suitably qualified or experienced. Repairs
and maintenance should only be performed by
qualified personnel and the machine should be
tested for electrical safety before re-use.
!! SPRAY LIQUID ejection could be hazardous as a
result of its temperature, pressure or chemical
content.
!! IF FOAM or liquid comes from the exhaust switch
off immediately.
!! ALWAYS disconnect machine from mains supply
when left unattended, when emptying the waste
container or cleaning the appliance.
!! WHEN CLEANING THE WASTE TANK use a
broad spectrum disinfectant cleaning agent to
prevent contamination from any infectious material.

Galaxy Manual 1/7/15 Page 7 of 33
IMPORTANT OPERATING INSTRUCTIONS
PLEASE READ THE FOLLOWING IMPORTANT OPERATING INSTRUCTIONS (!)
BEFORE ATTEMPTING TO USE THIS MACHINE. FAILURE TO OBSERVE THE
INSTRUCTIONS MAY RESULT IN DAMAGE TO THE EQUIPMENT.
! DO NOT expose the machine to rain or freezing
temperatures. Drain solution system and store
indoors when not in use.
! DO NOT operate the machine without solution and
waste tank filters.
! DO NOT use boiling water or temperature in
excess of 76OC.
! DO NOT use chemicals in the machine other than
those manufactured or recommended by Prochem
Europe.
! DO NOT use the machine for dry vacuuming. The
vacuum must only be used for wet extraction in
conjunction with the spray system.
! DO NOT run the solution pump and/or heating unit
dry. Always switch off and disconnect the machine
and/or heating unit electrical supply when re-filling
with solution.
! ALWAYS use a clean bucket to fill the solution
tank. Do not overfill the solution tank.
! AFTER USE flush solution system and rinse the
waste tank with clean water and remove loose
fibres from the vacuum filter.
! ALWAYS observe directions and safety
precautions on chemical products.
! ALWAYS pre-test carpet or fabric for colour
fastness and suitability with ready-to-use cleaning
solution before proceeding.
! ALWAYS use defoamer in the waste tank to
control foaming from previous shampoo residues in
the carpet.
! IF POWDERED CHEMICALS are used, always
premix in a separate bucket before adding to
solution tank. If not properly dissolved, powdered
cleaning solution may result in damage to the
solution pump.
! USE ONLY genuine replacement parts for this
machine, supplied by an authorised Prochem
Distributor.
! DO NOT use this machine for any purpose other
than for its intended design function. Any deviation
from its proper use or purpose and any
consequential damage that may occur is the sole
responsibility of the user.
! ALWAYS discharge soiled solution to a sewage
drain linked to a sewage treatment facility.
! DO NOT discharge soiled solution into roadside
storm drains.

Galaxy Manual 1/7/15 Page 8 of 33
GENERAL OPERATING INSTRUCTIONS
BEFORE OPERATING THE
MACHINE
Read the manual carefully and completely before
attempting to operate the unit. This manual has
important information for the use and safe operation
of the machine and should be kept available at all
times. This machine will ensure years of
satisfactory service if operated and maintained
according to recommendations in this manual. If
additional help or information is needed, please
contact your distributor or Prochem.
Prochem carpet soil extraction machines have been
designed with the operator in mind. Provided you
read the instructions relating to the care of your
machine and follow them carefully and take
advantage of the helpful hints and advice that we
have passed on, you will achieve excellent cleaning
results and very quickly pay for your investment. A
detailed operational guide is given in the following
sections, however, the following important points
must be emphasised.
FAILURE TO OBSERVE THESE
INSTRUCTIONS MAY SERIOUSLY
AFFECT THE PERFORMANCE OF
THE MACHINE AND INVALIDATE
THE WARRANTY
•Connection instructions - The 220 - 240V AC
models have been fitted with the appropriate
EC type sealed power cable and 3 prong 13
amp plug for the UK market. Ensure the
machine is connected to a 13 amp socket
outlet having the same configuration as the
plug. No adapter should be used with this
machine. Any modification to the plug type may
be dangerous and will void the warranty.
•This equipment is intended for commercial use
only.
•The machine was designed for use on carpet
and upholstery extraction applications as per
instructions and recommendations written in
this manual. Any deviation from its proper use
or purpose and the consequential damage that
may occur is the sole responsibility of the end
user.
•Disconnect the power cord from outlet before
servicing. Do not leave machine connected to
an electrical outlet when unattended.
•Do not immerse or use this machine in
standing water. Such use may cause electric
shock.
•This equipment is not designed to handle or
use combustible/volatile substances such as
gasoline or kerosene, in, on, or near the
machine. The use of such materials will cause
an extreme hazardous condition.
•Use defoamer at all times to prevent damage to
the vacuum motor(s).
•Do not use water in excess of 170°F (76°C).
•To prevent seal damage and chemical build-up
to the pump system, run clean water through
the solution lines after each days use.
•All repairs must be carried out by an authorised
Prochem distributor.
•Repairs should only be carried out by a
qualified person.
•Do not use replacement parts other than
genuine manufacturers parts as specified in the
parts list.
•Do not use chemicals in the machine other
than those supplied or approved by Prochem
Europe limited.
•Do not use the machine as a 'dry' vacuum.
Always pre-vacuum carpets thoroughly with a
separate 'dry' vacuum cleaner.
•Keep the solution tank and filter clean. Always
use a clean bucket to fill the solution tank.
•Clean the waste tank, vacuum filter and fall-out
tube daily. Do not allow the vacuum shut-off
filter to clog and do not restrict the free
movement of the ball float (where fitted).
Empty recovery tank regularly during use, do
not wait for it to fill up and cut the vacuum
motor out.
•Clean the drain valve regularly. Lubricate the
valve shaft, slide and PVC elbow connection
with suitable oil or maintenance spray. Do not
drain the waste tank completely until the end of
each job, as this will tend to clog the seal with
debris and sediment.
•After use, flush through the pump, solution
lines and waste tank with at least two gallons of
hot water.
•Do not allow the machine, hoses or tools to
freeze. Freezing may seriously damage the
pump and fittings. Always drain solution and
store indoors when not in use. When in transit
during freezing weather, insulate and cover
machine, wand and hoses. To prevent hose
cuffs splitting in cold conditions, immerse them
in warm water before use.

Galaxy Manual 1/7/15 Page 9 of 33
UNDERSTANDING YOUR SOIL EXTRACTOR
OVERVIEW
Extraction machines generally consist of two
mechanical parts, a solution pump and fan type
vacuum motor(s) - both operated by independent
electrical switches located on the main housing.
The pump forces a cleaning solution under pressure
from a housing tank to the face fibre of the carpet
via a solution feed hose and carpet wand. The
carpet wand has a spray jet system that is
compatible with the pressure from the pump and
delivers just the right amount of solution to the
carpet. The solution has a short amount of time to
be forced into the fibres and emulsify the soil
particles before it is extracted by the powerful
suction of the vacuum motor. Because both these
functions take place at the carpet wand, it will
soon be realised that the speed at which the
operator moves the wand is an important factor.
RECOVERY SYSTEM
The recovery tank has a built-in shut-off system that
works on the principle of a rising ball. As the waste
water or foam level rises and comes in contact with
the ball (which in turn is secured in a filtered
container) the ball floats and eventually is sucked
into the aperture of the vacuum pipe and seals the
air flow.
It is important to understand that shut-off devices
where fitted are there to act as a precautionary
measure. Care should be taken to empty the
recovery tank frequently and to use a defoamer
if heavy foam build-up occurs due to previous
shampoo residue in the carpet. Emptying of the
recovery tank is either by way of a positive drain
valve or removable bucket. Where fitted, care
should be exercised when opening the valve,
particularly when the tank is full as the force of dirty
water may overshoot the bucket. The drain valve
should be cleaned and kept free of soil sediment
regularly.
Do not let the recovery tank overfill and cut out
the vacuum motor.
At the same time do not completely empty the
recovery tank until the job is finished as this may
leave abrasive sediment in the drain valve rubbers.
A suggested method is to drain 10 litres of dirty
water regularly and at the same time refill with clean
hot solution using a separate bucket. By using
this technique, the solution tank is kept topped up
and the recovery tank is always below warning level
all in one journey.
•The filter in the recovery tank should be kept
clean and this should be carried out at the end
of each carpet cleaning session when cleaning
out the recovery tank.
When cleaning out the recovery tank, follow
these steps -
Place an empty bucket under drain valve and open
drain valve slowly. Empty tank and replace bucket
leaving drain valve open. Rinse tank with at least 10
litres of hot water, or Prochem deodorising solution.
If there is unused solution in solution tank, close
drain valve, then switch on the vacuum. With the
vacuum hose connected to recovery tank, place the
open end of vacuum hose in the solution tank and
extract all clean solution into recovery tank. This
will clean the inside of vacuum hose as well as
finally rinsing out the recovery tank. Remember to
leave the vacuum running for a few minutes after
you have extracted, as this will help dry out the
hose and avoid dripping hoses.
WARNING - Do not use extraction
machines for dry vacuuming
The vacuum motor on your soil extractor is not
protected by a dry dust filter. You should only use
the vacuum in conjunction with the solution spray.
Any pre-dry vacuuming operation should be carried
out using a normal dry vacuum machine.
SOLUTION SYSTEM
The quick connectors on each end of the solution
hose are connected to the machine and the carpet
wand, completing the solution circuit from the
solution tank via the pump to the wand head. The
female connectors incorporate a pull-back release
ring which houses steel ball bearings. These
should be lubricated regularly otherwise connection
may become difficult. The carpet wand heads are
made from stainless steel. Do not attempt to use
the carpet wand on hard floor surfaces or concrete,
which may result in damage to the wand head.
•Always check that the filter in the solution
tank is in good condition. Remember that
the filter is there to protect the pump from dirt
and fibres and it is a lot easier and cheaper to
replace the filter than it is the pump!
•Always use a clean bucket when you
replenish your solution tank. This help will
prevent soil and sediment from entering the
cleaning solution tank and pump system!

Galaxy Manual 1/7/15 Page 10 of 33
ACCESSORIES & CHEMICALS
ACCESSORIES
STAINLESS STEEL UPHOLSTERY TOOL
A lightweight stainless steel cleaning tool that, with
care, will not give the problems of the softer alloy
materials or plastics, the rough edges of which
could damage fine fabric. Suitable for use on all
wet-cleanable fine fabrics with an ultra-fine spray tip
to avoid over-wetting. This tool is essential for
upholstery cleaning.
CARPET & STAIR HAND TOOLS
Larger and heavier hand tool designed for
extraction cleaning stair carpeting, edges, small
rugs and inaccessible areas. Also ideal for rinse
extracting stains after treatment with an appropriate
Prochem spotting agent. These tools are NOT
recommended for upholstery cleaning.
VACUUM & SOLUTION HOSES (EXTENSION)
Extension hose assemblies may be used provided
they conform to the high pressure solution hose
requirements and do not exceed the maximum
recommended length for the vacuum configuration.
The maximum recommended length of hose for
single 3-stage vacuum models is 15m (50ft).
CHEMICALS
Prochem specialise in manufacturing chemical
products for the soft furnishing cleaning industry,
including carpets, floor coverings, upholstery fabrics
and curtains. This section refers only to the basic
Prochem chemicals for general on-site carpet
cleaning using the hot water extraction method.
S775 EXTRACTION PLUS
A wide use carpet cleaning formula containing a
high concentration of non-resoiling detergents,
builders and brighteners for effective cleaning of
synthetic and natural fibre carpets. S775 has an
approximate pH of 8.5 and should be diluted with
hot water at the rate of 10 ml. per litre (1 to 100).
S709 MULTI PRO
A concentrated pre-spotter and traffic lane cleaner
for treating spots, stains and heavily soiled traffic
areas prior to extraction cleaning. Dilute with warm
water at 1 - 4 to 1 - 8 and apply by sprayer. For
best results, brush into pile using Prochem carpet
pile brush before following up with extraction
cleaning process. S709 has a diluted pH of 10.5,
therefore always pre-test fibres for colour fastness
before use.
B109 FIBRE & FABRIC RINSE
A mild acidic concentrate for use as a
cleaning/stabilising rinse to restore correct pH to the
fibre. B109 will help to stabilise fugitive dyes and
reduce the possibility of 'jute browning' caused by
over-wetting or the use of alkaline cleaning
solutions. B109 can be used in place of S775 in the
extraction machine solution tank, or applied by
sprayer after cleaning. Dilute 10 ml. per litre of
warm water through your machine. B109 is
normally only used when a dye test suggests the
possibility of dye bleed or on light coloured carpets
when JUTE is part of the construction and may
cause BROWNING.
S760 LIQUID DEFOAMER
Always use S760 especially when foam problems
from soapy residue left from previous shampoo
cleaning are encountered. Mix 20 ml. of S760 with
500ml of cold water and add to vacuum hose and
recovery tank. As you drain off to empty the
recovered soiled solution, you simply add more
S760 as necessary. Remember, it is only
necessary to add S760 when extraction cleaning
previously shampooed carpets, so always check the
recovery tank for foam at the start of each job.
STAIN REMOVERS, SPOTTERS, PROTECTORS
& DEODORISERS
Speciality products such as those listed above are
available from the Prochem range. Refer to the
chemical section of the Product Catalogue for more
details. Individual Product Safety Data Sheets on
all products are available direct from Prochem or
Authorised Prochem Distributors.

Galaxy Manual 1/7/15 Page 11 of 33
CONDENSED OPERATING INSTRUCTIONS
PREPARING THE MACHINE
1. Pour clean solution into front tank.
2. Slide vacuum hose on to the black hose
adapter located at the back of machine and the
wand.
3. Connect one male end of the solution hose to
the wand and the other male end to the
machine by sliding knurled collar on the female
quick disconnect fitting back. Push the male
fitting in and release the knurled collar until it
snaps back.
4. Make sure the drain valve is closed by pushing
the T-handle all the way in.
5. Previously shampooed carpets may have a
heavy build-up of old shampoo residue which
can cause the vacuum system to ingest foam
and result in damage to the vacuum motor.
Remember to add recommended amount of
defoamer to the recovery tank every time you
fill the solution tank.
6. Plug the machine into a suitable electrical
outlet.
OPERATING INSTRUCTIONS
CARPET WAND
Important: Use only Prochem wands and hand
tools with the Galaxy equipment. They are
designed to deliver and maintain the correct
amount of solution and pressure when attached
to the Galaxy pump system. Use of other
manufacturers wands may cause over-wetting
of carpet, damage to the pump system and lack
of pressure.
1. Turn on the vacuum and solution switches.
2. Slowly pull the wand head towards you with the
solution valve trigger engaged. Then make a
pass forward and backward with the vacuum
only (no spray) over the cleaned area to
remove as much soil and solution as possible.
Do not over-wet carpet! Make overlapping
passes to prevent streaking.
3. On heavily soiled carpets, we strongly
recommend using a pre-spray solution. If the
carpet is heavily soiled, squeeze solution valve
lever on the forward pass as well as
backwards, allowing cleaning solution a few
seconds longer to work prior to vacuuming.
4. Before the solution tank is empty and the waste
tank is full, turn off the pump and vacuum.
Place a bucket under the drain elbow and pull
up the drain valve T-handle. Dirty solution will
pour out until the tank is empty. Close the drain
valve. Use a clean bucket when you refill the
solution tank.
5. When the job is completed, turn all switches off
disconnect power cable and disconnect the
vacuum and solution hoses from the carpet tool
and the machine. Drain the recovery tank
through the drain valve as before.
CLEANING UPHOLSTERY
CAUTION – WE STRONGLY RECOMMEND
ATTENDING AN UPHOLSTERY CLEANING
COURSE BEFORE ATTEMPTING TO CLEAN
FABRIC UPHOLSTERY.
General instructions
Cleaning upholstery with success requires a good
knowledge of the type of fabric to be worked on.
Look for the cleaning instruction label sewn on the
underside of the furniture for the recommended
method of cleaning the fabric. If it calls for dry
cleaning, do not attempt to clean with the wet
extraction method. Otherwise, damage to the fabric
could occur. Extraction works perfectly on most wet-
cleanable fabrics including synthetic (acrylic)
velvets.
Before proceeding, test the fabric for colour-
fastness. Apply a small amount of ready-to-use
cleaning solution on the fabric in an inconspicuous
area. Wait for 2 to 3 minutes and blot the area with
a white terry cloth towel. If no colour comes off onto
the towel, the fabric should be safe to clean. If a
little colour comes off, there is some risk of colours
running when you clean. It may be possible to
stabilise colours by cleaning with B109 Fibre &
Fabric Rinse.
1. Prepare the machine in the same manner as
for carpet (see preparing the machine) cleaning
except attach the upholstery tool to the vacuum
hose. Connect the solution hose. Pour warm
water into the solution tank. Add recommended
amount of cleaning concentrate into the
solution tank. Turn on the vacuum and pump
switches.
2. Clean with the upholstery tool using as little
solution as possible. Make overlapping passes
to prevent streaking. Go over the area you just
cleaned without depressing the lever (vacuum
only) and gauge the amount of moisture
extracted for dryness. On heavily soiled areas
like arm rests, pre-treat with a recommended
pre-spray.

Galaxy Manual 1/7/15 Page 12 of 33
PRACTICAL CARPET CLEANING
At this stage you will have a reasonable knowledge
of your cleaning machine and suitable chemicals to
achieve the best results. If you have carpet
cleaning background knowledge or you have
attended a Prochem Training Course, you will
also have an understanding of carpet construction,
types of fibres and related problems. The following
is a summary of the techniques using your
Prochem Soil Extraction Machine.
Using the cleaning wand
The procedure for using the carpet wand will vary
slightly from carpet to carpet depending on profile
and soil content. The effect of using a lightweight
wand as a scrub wand is to introduce a certain
amount of mechanical agitation that undoubtedly
helps to clean better by agitation of the pile fibres.
On the majority of normal soiled carpets no pre-
spray cleaner will be necessary (except in problem
areas) and a normal mix of 10 ml. S775
EXTRACTION PLUS per litre of hot water can be
used. Prochem can advise you on the various
alternative systems and methods that can be
applied for varying soil conditions and carpet types.
These are all referred to in the Prochem Training
Course Manual that is supplied with the course.
PREPARATION & FINISHING PROCEDURE
Clear area of all small items and breakables then -
1. Dry vacuum (dust removal) open areas of
carpet - before moving furniture.
2. Move all furniture to areas that you have just
vacuumed.
3. Dry vacuum remainder of carpet and edges
(optional depending on condition).
4. Pre-spray heavily soiled areas and treat spots
and stains.
5. Clean carpet using cleaning method as
described below and subject to dye bleed test
being carried out.
6. Reset pile with carpet pile brush.
7. Replace furniture in original position, placing
Prochem waterproof carpet protectors under all
legs and feet of furniture.
8. Use Prochem foam blocks under PLINTH
furniture to allow airflow.
When using the carpet soil extraction cleaning
method, there are certain basic rules of operation to
follow in order to achieve the best results and to
avoid over-wetting the carpet. The following is an
effective wand cleaning technique -
1. Switch on pump and vacuum.
2. Starting at right hand corner, extend wand
approximately 18" in front of operator to the
base of the skirting board.
3. Operate solution trigger to apply spray cleaning
solution whilst simultaneously drawing back the
wand toward the operator thus allowing the
vacuum nozzle to extract the emulsified soil
and excess moisture.
4. The distance on this movement needs to be no
more than 18". Release the solution trigger to
stop spray.
5. The wand is then pushed back over the same
path giving the vacuum a second chance to
retrieve more moisture.
6. DO NOT apply more solution during the
vacuum only pass.
7. The wand head is now moved far enough to
the left so as just to cover the left-hand edge of
the first cleaning pass and the procedure is
repeated.
8. Spray and vacuum then on return pass,
vacuum only.
9. Carry out a total of 4 spray and vacuum passes
overlapping each one by approximately 1".
10. At this point the wand head is passed back
over the area cleaned, using the vacuum only
to recover excess moisture.
11. When sufficient carpet has been cleaned and
vacuumed, the PILE can be reset using a
Prochem Pile Brush lightly brushing the pile
toward you as you move backwards.
The speed at which the wand head is drawn back
on the cleaning stroke is usually governed by the
degree of soiling, for example, the slower the
cleaning stroke the deeper the penetration of
cleaning solution. The same effect, however, can
be achieved by several quicker passes and not
allowing the cleaning solution to penetrate too far all
at once, and at the same time, using the movement
of the wand to agitate the cleaning solution which
does help to produce a better cleaning result.
The choice of technique is left to you, but it must be
pointed out that when using the slow technique,
there is a danger of wetting down to the backing of
the carpet and thereby risking a shrinkage problem.
Certainly, on all light to moderately soiled areas of
carpet, the wand movement should be fairly fast to
avoid over-wetting and extended drying out.
Remember that in the early stages of getting used
to your extractor, it is far better to re-clean a
patchily cleaned carpet than to have a bad
shrinkage problem on your hands. You will be
surprised how quickly you will master the cleaning
techniques.
If you have under-estimated the degree of soiling in
a carpet, you can always revert to one of the heavy
soil cleaning operations such as pre-spraying with
S709 MULTI PRO.
NEVER FORGET - a few extra minutes spent on
preparation and pre-treatment can save you
hours on a return visit.

Galaxy Manual 1/7/15 Page 13 of 33
GENERAL MAINTENANCE
All Prochem machines are engineered and built to
require a minimum of maintenance. But like any
machine, it does require some care to keep it in
optimum working condition. Careful attention to
these maintenance instructions will give you
maximum operating performance and will increase
the life expectancy of the machine.
To ensure a trouble-free machine, we strongly
advise the following preventative maintenance.
DAILY MAINTENANCE
The following should be carried out at the end of
each carpet cleaning session.
POWER CABLE & PLUG
Check the condition of the power cable and plug.
Make sure all wires are correctly located and tightly
connected. If damaged, the power cable and plug
assembly must be replaced.
DO NOT ATTEMPT REPAIR.
Instruction for replacement of power cable with
combined plug (all machines)
!! CAUTION - ONLY QUALIFIED MAINTENANCE
PERSONNEL SHOULD ATTEMPT THE
FOLLOWING REPAIR
Should the power cable require replacement,
please follow the instructions below.
1. The replacement cable and plug shall be of the
same specification as the original Prochem part
number BE4901 (3 core 1.5mm with 13Amp
sealed plug unit)
2. Ensure that machine is disconnected from
electrical supply and open electrical housing by
means of tool required.
3. Disconnect the live (brown), neutral (blue) and
earth (green/yellow) wires from the cable
terminal block by means of unscrewing the
terminal block wire clamp screws.
4. Release the outer cable clamp next to the
terminal block by unscrewing the two securing
screws, then unscrew the outer cable gland to
release the cable which can then be pulled out
of the cable gland assembly.
5. Insert the new cable through the gland, then
secure and clamp the outer cable by means of
tightening the outer cable gland and the two
securing screws next to the terminal block.
6. Connect the live (brown), neutral (blue) and
earth (green/yellow) wires to the cable entry
gland terminal block by means of inserting the
wire conductors into the terminal block as
follows :-
The conductor of the wire coloured brown shall
be connected to the terminal marked (L), the
conductor of the wire coloured blue shall be
connected to the terminal marked (N) and the
conductor of the wire coloured green and
yellow shall be connected to the terminal
marked with the Earth symbol thus -
7. Ensure that all connections are secure and
close machine electrical housing and secure
with tool required.
SOLUTION TANK
Flush the solution tank and pump through with 10
litres of hot water. Check the filter and clean if
necessary. DO NOT store hand tools, cables or
hoses in the solution tank as this may damage the
filter and heating element (if fitted).
RECOVERY TANK
Flush through with clean water and thoroughly
clean the vacuum filter. Remove soil and lint
build-up inside the filter screen in the recovery tank.
Lint should be cleaned off so that airflow is not
impeded. Check that the ball float moves freely
within the filter housing. Clean the drain valve
using a small soft brush to clear any debris or
sediment from the drain valve seal. Lubricate the
drain valve shaft, slide and elbow connection with a
suitable oil or maintenance spray. Check the waste
tank lid seal and also make sure the ball float
assembly is secure and pointing away from the
waste water inlet pipe.
WAND, HAND TOOLS AND HOSES
Inspect the carpet wand and hand tool for sharp
edges or damage (if accidentally dropped).
Check the spray jets for debris, correct alignment
and spray pattern. Clean if necessary using only a
soft bristle brush - DO NOT use metal or wire.
Rinse the vacuum hose with hot water to prevent
soil build-up.
Check all nuts and bolts and tighten if
necessary
Pay particular attention to the handle, base-plate
and wheel axle shaft securing bolts.
Always keep the machine clean inside and out.
WARNING! FREEZING
PROTECTION
If your extraction machine is exposed to freezing
weather with solution in the components, the
solution will FREEZE and in most cases
SERIOUSLY DAMAGE the machine. To avoid
damage, consider the following in the winter
season. When the machine is not in use, store it in
a heated building. This is particularly important in
the case of the WAND and HAND TOOL, which are
fitted with brass valves. To avoid freezing between
jobs, pump out all the cleaning solution from the
machine, wand and hand tool and make sure the
wand and hand tool are insulated from the vehicle
floor (wrap in a blanket or tarpaulin).

Galaxy Manual 1/7/15 Page 14 of 33
WEEKLY MAINTENANCE
At least once a week, inspect the internal
components, solution fittings and electrical
connections. Check for signs of fluid leakage and
tighten or replace fittings as necessary. Make sure
all electrical connections and cables are in place.
Solution Lines and Fittings
Flush the machine with a solution of 1 part water
with 20 parts B109 Fibre & Fabric Rinse in order to
neutralise the alkaline residue left by the cleaning
solution.
Quick connect coupler
Spray with WD-40 or equivalent lubricant to prevent
coupler from sticking.
Drain Valve
Apply light oil on gate seals. If machine has to be
stored, leave the gate valve open.
SOLUTION PUMP
!! CAUTION - ONLY QUALIFIED MAINTENANCE
PERSONNEL SHOULD ATTEMPT THE
FOLLOWING REPAIRS
A diaphragm type pump is fitted to the Galaxy
models and requires little maintenance other than
occasional inspection of the pump head to check for
any fluid leakage. The following components
should be inspected and cleaned, or replaced as
necessary. See parts illustration in this manual for
further reference.
-CHECK VALVE ASSEMBLY
-DIAPHRAGM
-CAM DRIVE BEARING
-MOTOR BRUSHES.
Models fitted with continuous running pumps (no
pressure switch fitted) should be checked for brush
wear every 6 months for normal usage and every 3
months for heavy usage. In the event of a reduction
in operating pressure, leakage or pump failure, refer
to the 'Fault Finding Guide' and contact your
Prochem Distributor.
VACUUM MOTOR
!! CAUTION - ONLY QUALIFIED MAINTENANCE
PERSONNEL SHOULD ATTEMPT THE
FOLLOWING REPAIRS
The vacuum motor is lubricated for life - no
additional lubrication is required. The only other
maintenance that may be required is changing the
motor brushes. This should only be carried out
by an individual with THOROUGH knowledge of
electric motors.
The brushes should be changed before the
brush wears to within 3/8" of the brass holder.
With heavy usage we recommend that the
brushes be checked every 3 months. The
recommended inspection period for normal
usage is at least every 6 months. The estimated
brush life is approximately 400 to 450 hours, but
inspection and replacement should take place at
least every 350 hours to prevent the possibility
that brush wear may cause damage to the
vacuum motor.
On re-assembly, the lead wires must be kept away
from the rotating parts and the motor frame. Always
ensure that the green earth wire is re-connected to
the vacuum motor body to ensure safe operation.
To achieve maximum life, the brushes should be
seated on the commutator before full voltage is
applied. Do this by applying 50% of the rated
voltage for thirty minutes.In the event of electrical
or mechanical failure, refer to the General Fault
Finding Guide page in this manual and contact your
Prochem Distributor. Although some service parts
are available, we recommend that defective
vacuums be replaced.

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