Spraying Systems CW1500A Series User manual

CW1500A Series
GunJet®Spray Gun
USER GUIDE
spray.com
MI-CW1500A

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CONTENTS
INTRODUCTION.................................................................................................... 2
WARNINGS & PRECAUTIONS ............................................................................... 3
INSTALLATION...................................................................................................... 5
MAINTENANCE..................................................................................................... 5
INTRODUCTION
The Model CW1500A- GunJet®is a high-pressure spray gun that offers
exceptional operator control, even at maximum flow and pressure conditions.
A bottom pivot trigger reduces operator fatigue by making trigger pull easier.
The shut-off valve is located in the base of the handle, concentrating heat away
from the operator’s hand and slowing heat build-up. The Model CW1500AW-
incorporates a continuous “Weep” feature to minimize the chance of freezing
and, with the exception of the valve seat sub-assembly, the CW1500A- and
CW1500AW- GunJet spray guns are identical and require the same installation
and operating procedures. The Model CW1500A- and CW1500AW- GunJet
spray guns will accommodate standard Spraying Systems Co. accessories for
both the inlet and the outlet connections, within the accessories pressure and
temperature limitations.
Features of the Model CW1500A Series GunJet spray guns:
•Operating pressure range — up to 1500 psi (104 bar).
•Maximum recommended temperature — 300° F (150° C).
•Forged Brass Inlet Body.
•Stainless Steel shut-off.
•PTFE Back-Up Rings.*
•Viton® O-rings.*
•Handle design helps to control reactionary force during trigger actuation.
* Viton is a registered trademark of DuPont Performance Elastomers

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WARNINGS & PRECAUTIONS
IMPORTANT: READ ALL INSTRUCTIONS BEFORE USING SPRAY GUN
THIS IS A HIGH-PRESSURE DEVICE WHICH SHOULD ONLY BE USED IN
A PROPERLY ENGINEERED SYSTEM. THIS SPRAY GUN SHOULD BE OPERATED
ONLY BY TRAINED OPERATORS AND KEPT OUT OF REACH OF CHILDREN. PLEASE
READ THE FOLLOWING INSTRUCTION SHEETS BEFORE ATTEMPTING
TO OPERATE THE CW1500A- OR CW1500AW- HIGH PRESSURE GUNJET
SPRAY GUNS.
HEED ALL THESE WARNINGS or serious and permanent injury may result.
GENERAL WARNING FOR HIGH PRESSURE SPRAY GUNS: IF THE OPERATING
PRESSURE IS BETWEEN 100 PSIG (0.69 MPA) AND 3200 PSIG (22.06 MPA), THEN
AN EXTENSION OR WAND SHOULD BE USED THAT SEPARATES THE DISCHARGE
NOZZLE A MINIMUM OF 29.5 INCHES (750 MM) FROM THE TRIGGER
MECHANISM. DO NOT ASSEMBLE DISCHARGE NOZZLE DIRECTLY INTO THE
SPRAY GUN.
IF THE OPERATING PRESSURE IS BETWEEN 3200 PSIG (22.06 MPA) AND 5000
PSIG (34.48 MPA), THEN AN EXTENSION OR WAND SHOULD BE USED THAT
SEPARATES THE DISCHARGE NOZZLE A MINIMUM OF 4.0 FEET (1.22 M) FROM
THE TRIGGER MECHANISM. DO NOT ASSEMBLE DISCHARGE NOZZLE DIRECTLY
INTO THE SPRAY GUN.
1. DO NOT aim gun at any person or any part of the body. Fluids under
high pressure can penetrate the human skin and can cause severe
injury, possibly resulting in amputation or death. Hot liquids and
chemicals can also cause burns or injury. If any part of the body comes
in contact with the spray stream, immediately consult a physician.
2. DO NOT at any time place hand or any other part of the body in front
of a spray nozzle or tip.
3. DO NOT alter equipment in any manner; if repairs are necessary, use
only genuine factory repair parts supplied by Spraying Systems Co.®
4. DO NOT exceed maximum operating pressure of the lowest rated
accessory item within the spray system, even though some of the
accessories have a higher maximum pressure rating.
5. DO NOT leave equipment under pressure unattended at any time. If a
pump is used, relieve line pressure by shutting off power to pump,
turning off the liquid supply to the pump, and actuating the Trigger
until all fluid ceases to flow; then position Trigger Lock to the “locked”
position.

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6. DO NOT use damaged, perforated, or weakened fluid hose.
7. DO NOT operate a spray gun if there are any leaks from the packings,
fittings, hoses, etc. Fluids which are under high pressure can penetrate
skin, cloth, etc. and cause serious injury.
8. DO NOT touch any metal parts of the gun or accessories when
spraying hot liquids or severe injury can occur.
9. DO NOT handle a spray gun without a tip or nozzle any differently
than one with a tip or nozzle. Even with the tip or nozzle removed, the
spray gun can discharge a large volume of liquid at a high velocity.
SAFETY SHOULD ALWAYS BE OBSERVED:
1. DO use a “two-handed” control of CW1500A- GunJet®at all times.
Grasp spray gun firmly with both hands. If an extension is used, grasp
the extension. (Insulated extension if spraying hot liquids).
2. DO adopt a secure body stance prior to and during spray operation to
safely control the high reactionary force of this unit
3. DO impress on other people in the spraying area the importance of
obeying strict safety precautions for everyone’s safety.
4. DO develop a habit of shutting off the power to the pump, relieving
fluid pressure from gun and hose by actuating trigger until all fluid
ceases to flow, and setting the Trigger Lock in the locked position,
before attempting to remove the tip, nozzle, gun or any part of the
gun… or when gun is not in use.
5. DO carefully check and tighten threaded connections regularly. Make
them secure and leak proof.
6. DO flush fun after each spray period, using the same safety
precautions as used during spraying operations. Always use the lowest
possible pressure of flushing
7. DO keep gun clean and dry to allow for positive grip.
8. DO use GunJet in a well-ventilated area and make sure spray gun is
grounded properly when used in a possibly explosive or inflammable
environment. A grounded type hose should be used.
IMPORTANT: In case of the slightest appearance of skin penetration from
spray, CONSULT A PHYSICIAN IMMEDIATELY!!

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INSTALLATION
There is no need to remove the cover from the body unless the coil is changed,
or the interior requires cleaning. To ensure that the internal liquid and air
connections to the fluid module are maintained leak-free, the following
procedures should be observed:
1. ALL FLUID PRESSURE MUST BE BLED OFF when replacing the fluid
module, or the internal connection will leak.
2. THE FLUID MODULE SHOULD BE REMOVED FIRST AND REPLACED
LAST if servicing requires the cover to he removed. This allows the
cover to be completely tightened during assembly and easily loosened
during disassembly.
3. If the cover is removed for any reason, BE SURE COIL PROJECTIONS
ARE SEATED IN THE BODY HOLES SO THAT THE COVER CAN BE
COMPLETELY TIGHTENED. Also, insure that the O-rings at each end of
the coil remain intact.
4. THE COVER MUST BE FULLY TIGHTENED AGAINST THE BODY since the
cover retains the fluid module in place and creates a seal for the air
and liquid connections. A loose cover will not allow the proper seals to
be made. Tighten cover by hand; wrenching is not required.
5. FLUID MODULE MUST BE WRENCH TIGHTENED TO INSURE A SEAL.
MAINTENANCE
With proper care, your CW1500A- Series GunJet®will give you reliable service.
To maintain this performance, parts should be inspected regularly and replaced
when necessary with genuine Spraying Systems Co.®parts.
DISASSEMBLY PROCEDURE:
If it becomes necessary to rebuild the Valve Assembly (3 - 13) order Spare Parts
Kit ABCW1500A-KIT or ABCW1500AW-KIT, follow these steps:
1. Make sure all air, electrical and liquid lines to the pump are turned off.
2. Release all the pressure and liquid (from the hose to GunJet) by
operating Trigger until fluid ceases to flow
3. Remove spray gun from hose

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4. Remove the five Screws (19) and Housing (18). See Figure 1, Page 7
5. Lift out all internal parts, leaving all parts assembled. Trigger Lock Plug
(17) should remain in Housing (18)
6. Clamp the Valve Body (2) and remove Retaining Screw (4) containing
Gasket (5), Back-Up Ring (6) and O-ring (7). See Figure 2, Page 7
7. Remove Stem (9), Valve Seat (8) with Back-Up Ring (11) and O-ring
(12), as well as Ball (10) and Spring (13).
PARTS REPLACEMENT/ASSEMBLY PROCEDURE:
1. Install new Back-Up Ring (11) and O-ring (12) on new Valve Seat (8).
2. Clamping Valve Body (2) insert the following new parts: Spring (13),
Ball (10) and Valve Seat Sub-Assembly (8, 11 & 12) into Valve Body.
NOTE: Cross-drilled holes in Valve Seat (8) should be in line with inlet of
valve body to minimize pressure loss. See “Figure 2”.
3. Remove Gasket (5), O-ring (7), and Back-up Ring (6), from Retaining
Screw (4) and replace with new parts.
IMPORTANT: O-RINGS (7 & 12) AND BACK-UP RINGS (6 & 11) MUST BE
INSTALLED IN THE CORRECT POSITION AS SHOWN OR THE
SPRAY GUN WILL LEAK AND PERMANENTLY DAMAGE THE
O-RINGS. SEE “FIGURE 2”.
4. Insert new Stem (9) through Retaining Screw Sub-Assembly (4 thru 7),
inserting rounded end through O-ring (7).
5. Install and tighten Retaining Screw Sub-Assembly and Stem into Valve
Body (2) with new Gasket (5).
6. Insert new Spring (3) over Stem (9).
7. Re-assemble into Housing (18).
NOTE: Be careful not to lose Trigger Spring (3).

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FIGURE 1
FIGURE 2
*Included in spare parts kit

8
North Avenue and Schmale Road,
P.O. Box 7900,
Wheaton, IL 60187
-7901
Tel: 1.800.95.SPRAY
Intl. Tel: [phone]
Fax: 1.888.95.SPRAY
Intl. Fax: [phone]
www.spray.com
MI
-CW1500A © Spraying Systems Co. 2019