Titan RentSpray 450 User manual

0707 © 2006 Titan Tool Inc. All rights reserved. Form No. 313-2692B
Printed in the U. S. A.
Do not use this equipment before reading this manual!
RentSpray 450
Airless Sprayer
Owner’s Manual
For professional use only
NOTE: This manual contains important warnings
and instructions. Please read and retain for
reference.
NOTE: This manual contains important warnings
and instructions. Please read and retain for
reference.
Model Number 766-4070

2 © Titan Tool Inc. All rights reserved.
This symbol indicates a hazardous situation,
which, if not not avoided could result in death or
serious injury.
To reduce the risks of fire or explosion, electrical
shock and the injury to persons, read and under-
stand all instructions included in this manual. Be
familiar with the controls and proper usage of the
equipment.
HAZARD: INJECTION INJURY
A high pressure paint stream produced by this
equipment can pierce the skin and underlying
tissues, leading to serious injury and possible
amputation. See a physician immediately.
DO NOT TREAT AN INJECTION INJURY AS A SIMPLE CUT!
Injection can lead to amputation. See a physician
immediately.
The maximum operating range of the sprayer is 3000 PSI / 20.6
MPa fluid pressure.
PREVENTION:
•NEVER aim the gun at any part of the body.
• Do not aim the gun at, or spray any person or animal.
•NEVER allow any part of the body to touch the fluid stream.
DO NOT allow body to touch a leak in the fluid hose.
• NEVER put your hand in front of the gun. Gloves will not
provide protection against an injection injury.
•ALWAYS lock the gun trigger,shut the pump off, and
release all pressure before servicing, cleaning the tip or
guard, changing tip, or leaving unattended. Pressure will
not be released by turning offthe motor.The
PRIME/SPRAY valve or pressure bleed valve must be
turned to their appropriate positions to relieve system
pressure. Refer to the PRESSURE RELIEF
PROCEDURE described in this manual.
•ALWAYS keep the tip guard in place while spraying. The
tip guard provides some protection but is mainly a warning
device.
• ALWAYS remove the spray tip before flushing or cleaning
the system.
• Paint hose can develop leaks from wear, kinking and
abuse. A leak can inject material into the skin. Inspect
the hose before each use. Do not use hose to lift or pull
equipment.
• NEVER use a spray gun without a working trigger lock
and trigger guard in place.
• All accessories must be rated at or above 3000 PSI / 20.6
MPa. This includes spray tips, guns, extensions, and hose.
• Do not leave the unit energized or under pressure while
unattended. When the unit is not in use, turn offthe unit
and relieve the pressure in accordance with the
PRESSURE RELIEF PROCEDURE described in this
manual.
• Verify that all connections are secure before operating the
unit. Unsecured parts may eject at great force or leak a
high pressure fluid stream causing severe injury.
• Always engage the trigger lock when not spraying. Verify
the trigger lock is functioning properly.
NOTE TOPHYSICIAN:
Injection into the skin is a traumatic injury. It is
important to treat the injury as soon as possible. DO
NOT delay treatment to research toxicity. Toxicity is a
concern with some coatings injected directly into the
blood stream. Consultation with a plastic surgeon or
reconstructive hand surgeon may be advisable.
HAZARD: HAZARDOUS VAPORS
Paints, solvents, insecticides, and other materials can
be harmful if inhaled or come in contact with the body.
Vapors can cause severe nausea, fainting, or
poisoning.
PREVENTION:
• Use a respirator or mask if vapors can be
inhaled. Read all instructions supplied with the
mask to be sure it will provide the necessary
protection.
•Wear protective eyewear.
• Wear protective clothing as required by coating
manufacturer.
HAZARD: EXPLOSION OR FIRE
Solvent and paint fumes can explode or ignite.
Property damage and/or severe injury can occur.
PREVENTION:
• Provide extensive exhaust and fresh air introduction to
keep the air within the spray area free from accumulation
of flammable vapors. Solvent and paint fumes can
explode or ignite.
• Do not spray in a confined area.
• Avoid all ignition sources such as static electric
sparks, open flames, pilot lights, electrical
appliances, and hot objects. Connecting or disconnecting
power cords or working light switches can make sparks.
Paint or solvent flowing through the equipment is able to
result in static electricity.
• Do not smoke in spray area.
• Fire extinguisher must be present and in good working
order.
•Place pump at least 25 feet (7.62 meters) from the spray
object in a well ventilated area (add more hose if
necessary). Flammable vapors are often heavier than air.
Floor area must be extremely well ventilated. The pump
contains arcing parts that emit sparks and can ignite
vapors.
•The equipment and objects in and around the spray area
must be properly grounded to prevent static sparks.
• Keep area clean and free of paint or solvent containers,
rags and other flammable materials.
• Use only conductive or grounded high pressure fluid hose.
Gun must be grounded through hose connections.
• For electric units — power cord must be connected to a
grounded circuit.
• Always flush unit into a separate metal container, at low
pump pressure, with spray tip removed. Hold gun firmly
against side of container to ground container and prevent
static sparks.
• Follow the material and solvent manufacturer's warnings
and instructions. Know the contents of the paints and
solvents being sprayed. Read all Material Safety Data
Sheets (MSDS) and container labels provided with the
paints and solvents. Follow the paint and solvent
manufacturer’ssafety instructions.
• Use extreme caution when using materials with a
flashpoint below 70ºF (21ºC). Flashpoint is the
temperature that a fluid can produce enough vapors to
ignite.
• Plastic can cause static sparks. Never hang plastic to
enclose a spray area. Do not use plastic drop cloths
when spraying flammable materials.
• Use lowest possible pressure to flush equipment.
• Do not spray onto pump assembly.
Important Safety Information •Read all safety information before
operating the equipment. Save these instructions.

© Titan Tool Inc. All rights reserved. 3
HAZARD: EXPLOSION HAZARD DUE TO
INCOMPATIBLE MATERIALS
Will cause property damage or severe injury.
PREVENTION:
• Do not use materials containing bleach or chlorine.
• Do not use halogenated hydrocarbon solvents such as
bleach, mildewcide, methylene chloride and 1,1,1 -
trichloroethane. They are not compatible with aluminum.
•Contact your coating supplier about the compatibility of
material with aluminum.
HAZARD: GENERAL
Can cause severe injury or property damage.
•Read all instructions and safety precautions before
operating equipment.
• Follow all appropriate local, state, and national codes
governing ventilation, fire prevention, and operation.
• The United States Government Safety Standards have
been adopted under the Occupational Safety and Health
Act (OSHA). These standards, particularly part 1910 of
the General Standards and part 1926 of the Construction
Standards should be consulted.
• Use only manufacturer authorized parts. User assumes
all risks and liabilities when using parts that do not meet
the minimum specifications and safety requirements of the
pump manufacturer.
• All hoses, fittings, and filter parts must be secured before
operating spray pump. Unsecured parts can eject at great
force or leak a high pressure fluid stream causing severe
injury.
• Before each use, check all hoses for cuts, leaks, abrasion
or bulging of cover. Check for damage or movement of
couplings. Immediately replace the hose if any of these
conditions exist. Never repair a paint hose. Replace it
with another grounded high-pressure hose.
• Do not kink or over-bend the hose. Airless hose can
develop leaks from wear, kinking and abuse. A leak can
inject material into the skin.
• Do not expose the hose to temperatures or pressures in
excess of those specified by manufacturer.
• Do not spray outdoors on windy days.
• Wear clothing to keep paint off skin and hair.
• Do not operate or spray near children. Keep children
away from the equipment at all times.
• Do not overreach or stand on an unstable support. Keep
effective footing and balance at all times.
• Use lowest possible pressure to flush equipment.
• Stay alert and watch what you are doing.
• Do not operate the unit when fatigued or under the
influence of drugs or alcohol.
• For electric units — Always unplug cord from outlet before
working on equipment.
• Do not use the hose as a strength member to pull or lift
the equipment.
• Do not lift by cart handle when loading or unloading.
Grounding Instructions
This product must be grounded. In the event of an electrical
short circuit, grounding reduces the risk of electric shock by
providing an escape wire for the electric current. This product
is equipped with a cord having a grounding wire with an
appropriate grounding plug. The plug must be plugged into an
outlet that is properly installed and grounded in accordance
with all local codes and ordinances.
Improper installation of the grounding plug
can result in a risk of electric shock.
If repair or replacement of the cord or plug is necessary, do not
connect the green grounding wire to either flat blade terminal.
The wire with insulation having a green outer surface with or
without yellow stripes is the grounding wire and must be
connected to the grounding pin.
Check with a qualified electrician or serviceman if the
grounding instructions are not completely understood, or if you
are in doubt as to whether the product is properly grounded.
Do not modify the plug provided. If the plug will not fit the
outlet, have the proper outlet installed by a qualified
electrician.
IMPORTANT: Use only a 3-wire extension cord that has a
3-blade grounding plug and a 3-slot receptacle that will
accept the plug on the product. Make sure your extension
cord is in good condition. When using an extension cord,
be sure to use one heavy enough to carry the current your
product will draw. An undersized cord will cause a drop
in line voltage resulting in loss of power and overheating.
A 12 gauge cord is recommended. If an extension cord is
to be used outdoors, it must be marked with the suffix W-
A after the cord type designation. For example, a
designation of SJTW-A would indicate that the cord would
be appropriate for outdoor use.
IMPORTANT:When the sprayer is used with a generator
or uncontrolled line voltage, the use of Titan’s“Line Surge
Protector” (P/N 800-935) is recommended.
Specifications
Gallons per minute (GPM)...............0.40 (1.5 LPM)
Maximum tip sizes ...........................0.019”
Maximum pressure ..........................3000 PSI (20.6 MPa)
Power...............................................3/4 HP DC motor
Weight..............................................34 lbs. (15.4 kg)
Maximum hose length......................300’ (91.4 m )
Grounded Outlet
Grounding Pin
Cover for grounded outlet box
Important Safety Information •Read all safety information before
operating the equipment. Save these instructions.

Table of Contents
Safety Precautions.................................................................2
General Description ...............................................................4
Operation ................................................................................4
Setup ....................................................................................4
Preparing to Paint.................................................................5
Painting.................................................................................5
Pressure Relief Procedure ...................................................5
Spraying ..................................................................................6
Spraying Technique ..............................................................6
Practice.................................................................................7
Cleanup ...................................................................................7
Cleaning the Spray Tip .........................................................7
Maintenance............................................................................8
General Repair and Service Notes.......................................8
Replacing the Motor .............................................................8
Replacing the Motor Brushes ...............................................8
Replacing the Gears.............................................................8
Replacing the Transducer.....................................................9
Replacing the PRIME/SPRAY Valve.....................................9
Servicing the Fluid Section.................................................10
Replacing the Filters ...........................................................11
Troubleshooting ...................................................................12
Parts Listings........................................................................18
Main Assembly....................................................................18
Motor Assembly ..................................................................19
Electrical Schematic ...........................................................19
Gear Box Assembly ............................................................20
Siphon assembly ................................................................21
Stand Assembly..................................................................21
Fluid Section Assembly ......................................................22
Accessories ........................................................................23
Labels .................................................................................23
Warranty ................................................................................24
General Description
This airless sprayer is a precision power tool used for spraying
many types of materials. Read and follow this instruction
manual carefully for proper operating instructions,
maintenance, and safety information.
Operation
This equipment produces a fluid stream at
extremely high pressure. Read and understand
the warnings in the Safety Precautions section at
the front of this manual before operating this
equipment.
Liquid
Holder
and
Drip Cup
Return
Hose
Motor
Siphon
Tube Pressure
Control
Knob
Oil Cup
ON/OFF
Switch
PRIME/
SPRAY
Valve
Fluid
Section
Outlet
Fitting
4 © Titan Tool Inc. All rights reserved.
Setup
Perform the following procedure before plugging in the power
cord of an electric sprayer.
1. Ensure that the siphon tube and the return hose are
attached and secure.
2. Using a wrench, attach a minimum of 50’ x 1/4” nylon
airless spray hose to the outlet fitting on the sprayer.
Tighten securely.
3. Attach an airless spray gun to the spray hose. Using two
wrenches (one on the gun and one on the hose), tighten
securely.
Make sure all airless hoses and spray guns are
electrically grounded and rated at or above the
maximum operating pressure range of the airless
sprayer.
4. Make sure the pressure control knob is turned fully
counterclockwise to its minimum setting.
5. Make sure the ON/OFF switch is in its OFF position.
6. Fill the oil cup with one tablespoon of piston seal lubricant
(Piston Lube).
IMPORTANT: Never operate unit for more than ten
seconds without fluid. Operating this unit without fluid
will cause unnecessary wear to the packings.
7. Make sure the electrical service is correct for the sprayer.
8. Plug the power cord into a properly grounded outlet at
least 25’ from the spray area.
IMPORTANT:Always use a minimum 12 gauge, three-wire
extension cord with a grounded plug. Never remove the
third prong or use an adapter.
Preparing a New Sprayer
If this sprayer is new,it is shipped with test fluid in the fluid
section to prevent corrosion during shipment and storage.
This fluid must be thoroughly cleaned out of the system with
mineral spirits before you begin spraying.
IMPORTANT: Always keep the trigger lock on the spray
gun in the locked position while preparing the system.
1. Place the siphon tube into a container of mineral spirits
that has a flash point of 140ºF (60ºC) or above.
2. Place the return hose into a metal waste container.
3. Set the pressure to minimum by turning the pressure
control knob fully counterclockwise.
4. Move the PRIME/SPRAY valve down to
the PRIME position.
5. Turn on the sprayer by moving the
ON/OFF switch to the ON position.
6. Allow the sprayer to run for 15–30 seconds
to flush the test fluid out through the return hose and into
the waste container.
7. Turn off the sprayer by moving the ON/OFF switch to the
OFF position.
NOTE: Do not attach the tip to the spray gun yet.
Remove the tip if it is already attached.

Preparing to Paint
Before painting, it is important to make sure that the fluid in the
system is compatible with the paint that is going to be used.
IMPORTANT: Always keep the trigger lock on the spray
gun in the locked position while preparing the system.
1. Place the siphon tube into a container of the appropriate
solvent for the material being sprayed (refer to
recommendations of the material manufacturer). An
example of the appropriate solvent is water for latex paint.
2. Place the return hose into a metal waste container.
3. Set the pressure to minimum by turning the pressure
control knob fully counterclockwise.
4. Move the PRIME/SPRAY valve down to the
PRIME position.
5. Turn on the sprayer by moving the ON/OFF switch to the
ON position.
6. Allow the sprayer to run for 15–30 seconds to flush the old
solvent out through the return hose and into the metal
waste container.
7. Turn off the sprayer by moving the ON/OFF switch to the
OFF position.
8. Move the PRIME/SPRAY valve up to the
SPRAY position.
9. Turn on the sprayer. Make sure the
pressure is still set to minimum with the
pressure control knob turned fully counterclockwise.
10. Unlock the gun by turning the gun trigger lock to the
unlocked position.
Ground the gun by holding it
against the edge of the metal
container while flushing. Failure
to do so may lead to a static
electric discharge, which may
cause a fire.
11. Trigger the gun into the metal waste container until the old
solvent is gone and fresh solvent is coming out of the gun.
12. Lock the gun by turning the gun trigger
lock to the locked position.
13. Set down the gun and increase the
pressure by turning the pressure control
knob slowly clockwise.
14. Check the entire system for leaks. If
leaks occur, follow the “Pressure Relief
Procedure” in this manual before tightening any fittings or
hoses.
15. Follow the “Pressure Relief Procedure” in this manual
before changing from solvent to paint.
Be sure to follow the pressure relief procedure
when shutting down the sprayer for any purpose,
including servicing or adjusting any part of the
spray system, changing or cleaning spray tips, or
preparing for cleanup.
Trigger lock in
locked position.
NOTE: Make sure that the spray gun does not have a
tip or tip guard installed.
NOTE: Hold the return hose in the waste
container when moving the
PRIME/SPRAY valve to PRIME in
case the sprayer is pressurized.
NOTE: Incompatible fluids and paint may cause the
valves to become stuck closed, which would
require disassembly and cleaning of the
sprayer’s fluid section.
Painting
1. Place the siphon tube into a container of paint.
2. Place the return hose into a metal waste container.
3. Set the pressure to minimum by turning the pressure
control knob fully counterclockwise.
4. Move the PRIME/SPRAY valve down to the
PRIME position.
5. Turn on the sprayer by moving the ON/OFF
switch to the ON position.
6. Allow the sprayer to run until paint is
coming through the return hose into the metal waste
container.
7. Turn off the sprayer by moving the ON/OFF switch to the
OFF position.
8. Remove the return hose from the waste container and
place it in its operating position above the container of
paint.
9. Move the PRIME/SPRAY valve up to the
SPRAY position.
10. Turn on the sprayer.
11. Unlock the gun by turning the gun trigger
lock to the unlocked position.
Ground the gun by holding it
against the edge of the metal
container while flushing. Failure
to do so may lead to a static
electric discharge, which may
cause a fire.
12. Trigger the gun into the metal waste container until all air
and solvent is flushed from the spray hose and paint is
flowing freely. from the gun.
13. Lock the gun by turning the gun trigger
lock to the locked position.
14. Turn offthe sprayer.
15. Attach tip guard and tip to the gun as
instructed by the tip guard or tip manuals.
POSSIBLE INJECTION HAZARD.
Do not spray without the tip guard
in place. Never trigger the gun unless the tip is in
either the spray or the unclog position. Always
engage the gun trigger lock before removing,
replacing or cleaning tip.
16. Turn on the sprayer.
17. Increase the pressure by turning the pressure control
knob slowly clockwise and test the spray pattern on a
piece of cardboard. Adjust the pressure control knob until
the spray from the gun is completely atomized. Try to
keep the pressure control knob at the lowest setting that
maintains good atomization.
NOTE: Turning the pressure up higher then needed to
atomize the paint will cause premature tip wear
and additional overspray.
Trigger lock in
locked position.
© Titan Tool Inc. All rights reserved. 5