Uni-ram UG7500W User manual

REV 2020- 10
UG7500W
AUTOMATIC SPRAY GUN CLEANERS
WWW.UNIRAM.COM
CORPORATION
••381 Bentley Street, Markham ON L3R 9T2
• Tel. [phone]
• [email protected]
USER
MANUAL

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
INTRODUCTION
Uni-ram holds many patents on designs used in its innovative products. Every machine is tested for compliance
with Quality Assurance standards. Follow the directions in this manual under Setup, Operation and Maintenance
in order to operate this machine safely and effectively. Not following these instruction can lead to malfunction or
damage to the machine. Ensure that the manual is readily available for the operator at all times. If you have any
questions about the operation of this machine, call Uni-Ram Service Engineer at 1-800-417- 9133.
MODEL 7500W
MANUAL WASH BRUSH YES
MANUAL RINSE WITH SPIGOT YES
WASH Water PAIL INCLUDED YES
RINSE Water PAIL INCLUDED YES
SHIPPING SIZE (WDH)
38 X 26 X 68
inches
96 X 66 X 173
cm
SHIPPING WEIGHT (LB / KG) 185 / 84
COMMON FEATURES
• Automatic Wash, Automatic Air Flush, Automatic Water Rinse.
• Flow-through Brush for manual wash. Flow Control.
• Spigot for manual rinse. Flow Control.
• Clean 2 Spray Guns and 2 Pots at the same time.
• Stainless steel inlet filter, located at the end of the suction hose, prevents debris from reaching the pump and
wash pail.
• 14 Cleaning Jets with swirl action.
• Shipping Size and Weight: 38" W x 26" D x 68" H, 185 LBS 84 KG.
CAUTIONS AND WARNINGS
• Always disconnect this machine from power sources before performing maintenance.
• Make sure all ground wires are connected and that unit itself is grounded properly.
SAFETY EQUIPMENT
• Wear safety eyeware, respiratory protection and protective clothing.
• Wear deluxe extended length neoprene gloves; SAS PN 6588 or Thicksters PN 6602-20 through 6605-20.
SETUP
DELIVERY INSPECTION
• Inspect the shipping carton for any sign of transport damage. Carefully remove the unit from the shipping carton
and check the unit for damage. Report any transport damage immediately to the carrier and to Uni-ram Corpora-
tion. Initiate a freight claim with the carrier. The manufacturer is not responsible for the freight damage.
Bag of accessories contains the following:

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
Timer
Clean Rinse
Air Rinse
UG7500W
Stainless steel inlet
filter located on end
of suction hose
Note 1: The stainless steel
inlet lter, located at the
end of the suction hose,
prevents debris from
reaching the pump and
wash tank. See the section
on Maintenance for cleaning
of the stainless inlet lter.
Suction Hose
Drain Valve (inside)
Wash Pail
See Note 1 below
Spigot Brush
Spigot
Brush
Brush Flow control
Spigot Flow control-
Drain Hose
Suction Hose and
Brush hose for Wash
tank
Hose for Rinse pump
and hose for spigot
Automatiic Tank
Manual Tank
Wash Pail
Blow gun (not shown)
Install hood stand here

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
• Manual
• Push on nozzle extension for disposable cup system or conventional cup system(110-430PPS).
• Push on nozzle extension for conventional cup system(110-430).
• Kit-Plug, Trigger Lock Spring, 2 in a package (140-2340).
• Hood Door Support (780-3723)
LOCATION
Position the unit in a well-ventilated area at least 6 " from the back wall.
AIR SUPPLY
• Connect a male air supply adapter (not supplied) into the female Air Inlet on the unit. The male air supply
adapter is 1/4" NPT.
• Connect the female air supply hose to the adapter. The air supply hose must be at least 3/8" inside diameter.
The air supply pressure must be at least 85 PSI and the supply air must be free from con-
taminants such as water, dust, rust, tar and grease. If the air supply is not clean and dry
install a moisture filter. The operation and longevity of the pump and other components
depends on clean dry supply air.
• To prevent damage to the Diaphragm Pump an internal Air Pressure Regulator has been
installed to limit the air pressure to 85 PSI. Do not install a second air pressure regulator or use a
pressure set below 85 PSI.
GROUNDING
• Connect the green ground wire at the back of the unit to a ground in the building using the ring terminal on
the ground wire.
Note: The pump and metal tube
that inserts into each pail are grounded.
INSTALLATION OF HOOD SUPPORT
• The hood support is located in the accessory kit.
Locate the hole for the hood on the underside
of the top of the cabinet. See photo to the
right.
• Push the front screw through the hole and install the hood
support. Install a wing nut onto the
screw. See the photo on right.
• Install the other screws and wing nut
in a similar way.
Ring Terminal
Hood
Support
Hood Support
Top of Cabinet
Screw
Location

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
• Check to ensure the Drain Valve is in the open
position (handle in vertical position) and drain hose
is in the (left) pail.
PAIL SETUP
• Open the cabinet door.
• The spray gun cleaner comes with two plastic pails. The black drain hose, suction hose and brush
hose are inserted into the plastic wash pail. See the photo of the unit below. The Rinse pump and
suction pipe for the rinse spigot is installed in the clean pail. The stainless steel inlet filter is located
at the end of the suction hose and prevents debris from reaching the pump and wash tank. See
the photo of the filter below. Clean the filter monthly. The procedure to clean the filter is described
in the Section, MONTHLY MAINTENANCE.
• Pour the contents of AQUA-KLEEN into the tank. Pour 3 gal (12 L) of water into the wash tank to fill
the wash pail. AQUA-KLEEN enhances the cleaning power of water. Move the suction hose to the
clean pail after removing the cap and pour the contets of the second bottle of AQUA-KLEEN into the
tank. Pour 5 gallons (19 L) of water in the the cleaning tank. Return the drain hose to the wash pail.
Note 1: Stainless steel inlet filter located on end
of suction hose
Drain Valve
Open Closed
cabinet
Drain Hose
Wash Pail
See Note 1 below
Spigot Brush
Suction Hose for Wash
tank
Hose for Rinse Pump
and spigot
Wash Pail
Stainless Steel Filter
Suction hoses for
Spigot and Brush
Drain Valve
Drain Valve
Drain Valve

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
Pre clean Fluid
Passageway
PRE-CLEAN - DISPOSABLE CUP
Disconnect the spray gun from the air hose.
• Squirt water into the disposable cup adapter, shown
in photo on far right.
• Pull the gun’s trigger to flush the water through the fluid
channel and into the paint waste container (not supplied)
for later disposal.
.
PRE-CLEAN - CONVENTIONAL CUP
Disconnect the spray gun from the air hose.
• Disconnect the cap and pour the paint waste into a paint waste
container (not supplied).
CLEANING SPRAY GUNS AND CUPS
• Remove digital air gauge if so equipped.
• Loosen the air cap of the spray gun two full turns.
• Lock the trigger in the open position with the Trigger Lock Spring.
See photos below.
Remove
Gauge Trigger Lock Spring Trigger Lock Spring
On Spray Gun

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
Placing Spray Gun on
Nozzle Extension
Location for Push On
Nozzle Extension for
second spray gun
Cap points to
the corner jets
SPRAY GUN INSTALLED IN TANK
INSTALLING SPRAY GUNS IN TANK
• Place the spray gun on the nozzle with the cap facing the corner.
See photo on right and photo above.
Air Plug

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
PREVENT Water FROM ENTERING THE AIR PASSAGE OF SPRAY GUN:
• Insert the plastic plug into the air tting as in the photo below.
• Positive air will ow through the passage way during cleaning.
• If you disconnect the air plug from your spray gun attach the knurled nut on the chain with the trigger
lock spring to the air passageway of the spray gun.
CLEANING CYCLE:
• Close the lid of the spray tank and turn the "Auto Wash Timer" clockwise. See photo below. The
wash cycle takes about 60 seconds.
• Push and hold the "Air Rinse" button for about 5 seconds to evacuate the wash water and air rinse the spray
guns. See photo below.
• Press and hold the "Clean Rinse" buttom for about 5 seconds to send 100 cc of clean water through the jets to
rinse the the spray guns. See photo below.
Air Plug inserted into the Air
Passage way of the spray gun
Auto Wash Timer
Air Rinse
Control of ow
for Spigot
Control of ow
for Flow-Through
Brush
Clean Rinse

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
Flow-through Brush washing a
spray gun
Spray Gun
Flow-through
Brush
MANUAL WASH
• Open the lid and remove the brush from its holder on the back wall of the wash tank.
• Step on the foot pedal. A dedicated pump delivers wash water through the Flow-though brush. To
control the flow of water through the Brush, adjust the Flow Control, also on the front of the unit.
CONTROL OF FLOW FOR FLOW-THROUGH BRUSH
• See photo above. To increase flow, loosen the
locking nut, rotate the dial anti-clock wise,
and tighten the locking nut.

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
MAINTENANCE
• Clean the stainless steel inlet lter each month.
Procedure:
Follow step 1 and step 2 below under REPLACING SOLVENT.
Lift the suction pipe from the wash pail, (see the left photo below) unscrew the stainless steel lter from the
nut and clean it with clean water in a mixing cup. See the right photo below.
Remove Suction Pipe and Filter Clean Filter
REPLACING SOLVENT
• Replace the wash water when the water has lost cleaning eectiveness or after approximately 100
cleanings.
1) Remove the clean pail from the cabinet and then remove the rinse pump from the clean pail.
2) Close the drain valve (left photo below). Remove the drain hose and suction pipe from the wash pail and take
pail out of the cabinet. See middle and left photo below.
3) Pour used wash water from the wash pail into the waste drum. Return wash pail to the cabinet and insert
drain hose and suction hose. Pour 3 gal (12 L) of fresh water into the cleaning tank to drain to the wash pail.
Top up Clean Water pail to 5 gal. (19 L) and return rinse pump and pail to the cabinet.
Note 1: Stainless steel inlet filter located on end
of suction hose
Drain Hose
Spigot Brush
Suction Hose for Wash
tank
Hose for Rinse Pump
and spigot
Stainless Steel Filter
Drain Valve

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
TROUBLE SHOOTING
PROBLEM REASON CORRECTIVE ACTION
Drain valve closed
Open drain valve (put in vertical
position), if not already open
Liquid level too low
Check wash liquid level. Add liquid if
less than1/2 full.
Fill to 4 gal (11 L).
Debris in pump or suction and
output hose
Follow Procedure 1, "Blocked Fluid
Passage in Diaphragm pump" in the
next section.
Water or contaminants are in
air line of pump.
Passage in Diaphragm Pump" in the
next section.
Flow Control is closed.
Manual flow control is located on the
control panel on the front of the
machine. Loosen the locking nut and
rotate control to the left to increase
flow.
Liquid level too low
Check wash liquid level. Add liquid if
less than 1/2 full up to 4 gal (11 L).
Foot pedal switch not
functioning
Inspect foot switch for free travel, and
lubricate with gun oil. If switch will
not travel freely, replace with PN 155-
400BF2
Water in air line causes pump
to stall
Follow Procedure 2. "Blocked Air
Passage in Diaphragm Pump" in the
next section.
WASH PUMP DOES NOT
STOP UNLESS TIMER IS
TURNED BY HAND OR AIR IS
SHUT OFF. WASH PUMP
DOES NOTSTART.
Defective Timer
TIMER KNOB SPINS BACK
WHEN TURNED
Defective Timer Replace Timer. PN 115-200K.
Replace Timer, PN 115-200K.
WASH PUMP MAKES
HISSING SOUND AND LIQUID
DOES NOT FLOW
BRUSH PUMP DOES NOT
MAKE A NOISE AND LIQUID
DOES NOT FLOW WITH
PEDAL DEPRESSED
Brush is clogged with debris.
Unthread brush from hose and
operate foot pedal. If free solvent flow
is now seen, replace brush with PN
144-390S
WASH PUMP MAKES
PUMPING SOUND BUT
LIQUID DOES NOT FLOW
FROM THE JETS

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
PROBLEM REASON CORRECTIVE ACTION
Trigger not locked in open
position
Use trigger lock Spring (pn 120-350)
Spray gun is not properly
installed on nozzle
Reinstall with proper adapter.
Solventborne: incompatible
solvent
Waterborne: replace water
AQUA-KLEEN mixture
Solventborne: use compatible solvent
Waterborne: replace water AQUA-KLEEN
mixture
Plugged jets Clean the jets or replace the jets.
Water in solvent is corroding
the metal pail.
Replace or recycle wash solvent. Use a
HDPE pail approved for use with solvent.
DEPRESSING CLEAN RINSE
BUTTON DOES NOT PROVIDE
CLEAN RINSE LIQUID
Rinse Pump is leaking. Replace the rinse pump, PN URP-100SF
CLEAN RINSE IS DIRTY
Replace Combination Valve, PN UVB-
400KIT.
INSIDE WALL OF TANK IS
COATED WITH PAINTEVEN
THOUGH OPERATOR
MAINTAINS TANK
SOLVENTBORNE: SOLVENT
APPEARS RED OR ORANGE
Liquid lacks cleaning
strength.
Solventborne: Replace solvent and/ or
consider better quality solvent.
Waterborne: replace water and AQUA-
KLEEN mixture.
GUNS NOT CLEAN, PUMP
WORKING, LIQUID FLOW IS
NORMAL

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
TROUBLESHOOTING PROCEDURES PROCEDURE 1
Blocked Fluid Passage In Diaphagm Pump
If the pump sounds like it is working but liquid does not flow, clear the
fluid passage as follows:
• Remove suction tube from the pail and blow air at 85 PSI into
the INLET Liquid Hose (see diagram). Step on foot pedal to
activate pump. This procedure may have to be repeated several
times. If this procedure does not help, blow some water into the
suction hose using a spray gun, wait one minute and step on foot
pedal to activate pump. This procedure may have to be repeated
several times. If this procedure does not work, the pump must be
replaced.
If you need to replace the pump log-on to Service Channel and
Fixxbook or call the Uni-ram Service Engineer.
The warranty on the diaphragm pump is two years from date of pur-
chase.
This procedure will also clear a blockage in the fluid line for the brush. Follow the same procedure to clear a
blockage in the automatic nozzle except turn the timer instead of stepping on the foot pedal.
PROCEDURE 2
Blocked Air Passage In Diaphragm Pump
If there is a steady hissing sound and the pump is not cycling, the
spool valve has stalled due to a blocked air passage. Follow the
procedure below to clear the blockage.
• Connect a blow gun to an 85 PSI source. Locate the blue
hose that extends from the air exhaust port of the dia-
phragm pump. Use a blow gun to blow air into the open
end of this hose. Turn timer. If the procedure is successful,
the pump will start working. The procedure may have to
be repeated several times. If this procedure does not work,
replace the pump.
• Cause: Contaminants in the air supply (water, oil, solid
particles etc)
• Preventative Action: If necessary, install an Airline
(Moisture) Filter.
PROCEDURE 3
Blocked Passage in Air Line
The components in the air line are the diaphragm pump, air valve, foot pedal, 3-way ball valve and
regulator. See the Flow Diagram and the section: Replacement Parts.
To troubleshoot a component:
1) Disconnect the air line to the component using the quick disconnect.
2) Step on foot pedal and check for presence of positive air pressure in the air line. If there is ample positive air
pressure, replace the component.
If air pressure is absent, there is a faulty component upstream. Reconnect the air line and check the operation of
the next component upstream by following steps 1 and 2 above.

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
FLOW DIAGRAGM FOR THE UG7500W

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
REPLACEMENT PARTS
Part No. Description
110-430PPS Nozzle Adapter, Push On, Disposable and Conventional Systems
100-413F Paint Cap Holder
115-200/K Mechanical Timer Assembly, 5 minutes
140-230 Air Passage Plug
140-2340 Trigger Clamp & Plug Kit
144-390 Flow-Through Brush
144-397 Hose for Flow-Through Brush
100-835 Ground Wire for Gun Cleaner, 18G, Green, 4 FT
UDP4TA 4" Dual Diaphragm Pump (Main Pump)
UDP2TAB 2" Dual Diaphragm Pump (for Flow-through Brush)
150-8115RT Wash Pail
150-8114RT Clean Rinse Pail
Part No. Description
110-430 Nozzle Adapter, Push On, Conventional Systems Only
110-430PPS Nozzle Adapter, Push On, Disposable and Conventional Systems
780-3530 Nozzle Adapter, Disposable Cup Systems Only
100-413F Paint Cap Holder
115-200/K Mechanical Timer Assembly, 5 minutes
140-230 Air Passage Plug
140-2340 Trigger Clamp & Plug Kit
144-390 Flow-Through Brush
144-397 Hose for Flow-Through Brush
100-835 Ground Wire for Gun Cleaner, 18G, Green, 4 FT
780-8000 2-Pail Set with overflow tube etc (does not include Hoses & Fittings for connecting to
Water Recyclers)
UDP4TA 4" Dual Diaphragm Pump (Main Pump)
UDP2TAB 2" Dual Diaphragm Pump (for Flow-through Brush)
780-8120P Clean Rinse Pail
750-815P Overflow Tube
780-8110P Wash Pail
780-8116F Riser

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MANUAL - UG7500W SERIES SPRAY GUN CLEANERS REVISED 2020-10
Full Product Warranty
These Uni-ram products have been engineered and manufactured to high performance standards. Each unit has
been subjected to detailed factory testing before shipment.
This product comes with a one-year full warranty from the date of purchase. Uni-ram Corporation reserves the
right to repair or replace the unit, free of charge, to the original purchaser if a part is found to be defective in
material or workmanship as determined by factory service personnel. The items listed below under "Conditions
of Warranty" as consumables are not covered.
Uni-ram reserves the right to direct the customer to ship the unit collect to the Uni-ram factory or to an approved
Service Center for repair using the Uni-ram Return Goods Procedure or to repair the unit on-site. To prevent
damage in transport, the purchaser must ship the unit in the original packaging or use alternate adequate packag-
ing. All units must be shipped clean and free of liquid.
Diaphragm Pump:
We are pleased to advise that the warranty on the diaphragm pump, the heart of the spray gun cleaner, comes
with a 2 year replacement warranty. If, in the unlikely event your diaphragm pump fails during the first two years
of service, call Uni-ram Service at 1-800-417-9133. We will send you a new pump free of charge and arrange for
the return of your original pump.
Conditions of Warranty:
As Uni-ram Corporation has no control over the working conditions or circumstances under which the purchaser
stores, handles or uses the product, Uni-ram makes no warranty or claim, either expressed or implied with respect
to this product's fitness for any purpose or the result to be obtained from its use. This condition applies to the sale
of all products and no representative or distributor of Uni-ram Corporation has the authority to waive or change
these conditions.
This warranty applies only to the original purchaser and does not apply if the unit has been misused, overloaded,
neglected, altered or used for any purpose other than those specified in the operating and installation instruc-
tions. Deterioration due to normal wear is not covered by this warranty. Damage due to accident, transportation,
fire, floods or acts of God is also not covered. Units whose serial numbers have been altered or removed are not
covered. The warranty is invalid if unauthorized chemicals as noted in the manual or liquids with acid content
are used in this unit. Unauthorized attempts at self-repair or alterations by the owner also invalidate this warranty.
Interior or exterior finishes are not covered by this warranty.
Consumable Items are not covered by this warranty (eg: gaskets, screens, bags, filters, nozzles and air jets).
This warranty replaces all other warranties expressed or implied by statute or otherwise.
To make a claim, call Uni-ram Service at 1-800-417-9133 and quote the serial number of the unit.