Spraying Systems GunJet AA60 Brass High-Pressure Nozzle Spray Gun User Guide

June 4, 2024
Spraying Systems

60 & 60W GunJet Spray Gun ®
USER GUIDE

INTRODUCTION

The Model 60 series GunJet® is a heavy-duty, impact-resistant spray gun with a sturdy nylon handle and trigger guard. The Model 60 GunJet is a high-pressure spray gun, which remains responsive and easy to operate even at maximum flow and capacity conditions. The light trigger pull provides positive control. The heat-resistant handle remains comfortable even at high temperatures. A special trigger lock feature locks in the “off” position to prevent accidental discharge and retracts flush into the handle when the gun is in use. The Model 60W incorporates a continuous “weep” feature to minimize the change of freezing and, with the exception of the valve seat subassembly, the 60 and 60W GunJet spray guns are identical and require the same installation and operating procedures. The Model 60 and 60W 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 60-GunJet spray guns :

  • Operating pressure range up to 2500 psi (173 bar).
  • Flow capacities to 6 gpm (23 l/min) with 90 psi (6 bar) pressure drop.
  • Maximum recommended temperature 300°F (150° C).
  • Single piece, forged brass inlet body (for 60 & 60W).
  • Stainless steel inlet body (for 60 SS & 60W SS).
  • Stainless steel shut-off needle.
  • Bronze-filled PTFE valve seat.
  • Viton stem seal with PTFE backup ring.
  • Short hand grip (handle to trigger).

WARNINGS & PRECAUTIONS

IMPORTANT: READ ALL INSTRUCTIONS BEFORE USING A SPRAY GUN THIS IS A HIGH- PRESSURE DEVICE THAT 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 MODEL 60 HIGH-PRESSURE GUN JET SPRAY GUN. HEED ALL THESE WARNINGS or serious and permanent injury may result.

  1. DO NOT aim the 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 hands or any other part of the body in front of 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 the 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. Relieve pressure by shutting off power to the pump, turning off the liquid supply to the pump, and actuating Trigger until all fluid ceases to flow; then position Trigger Lock to the locked position.
  6. DO NOT use damaged, perforated, or weakened fluid hose.
  7. DO NOT use a GunJet with a faulty or damaged Trigger Lock.
  8. DO NOT operate a spray gun if there are any leaks from the packings, fittings, hoses, etc. Fluids that are under high pressure can penetrate skin, cloth, etc., and cause serious injury.
  9. DO NOT touch any metal parts of the gun or accessories when spraying hot liquids or severe injury can occur.
  10. 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 Model 60 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 the gun and hose by actuating the 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 the gun is not in use.
  5. DO check the operation of the Trigger Lock before each spray period. Trigger The lock must hold the Trigger to its forward position. (Adjust if necessary; see section Trigger Adjustment Procedure.)
  6. DO carefully check and tighten threaded connections regularly. Make them secure and leak proof.
  7. DO flush the gun after each spray period using the same safety precautions as used during spraying operations. Always use the lowest possible pressure for flushing.
  8. DO keep gun clean and dry to allow for a positive grip.
  9. DO use GunJet in a well-ventilated area and make sure the 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!

INSTALLATION

  1. Before installing GunJet® to hose, select WashJet® tip or, if desired, an appropriate extension and WashJet nozzle for your application. Install on the gun with nozzle positioned for your particular spraying needs and tighten.
  2. Make sure all power is turned off to the pump. Attach GunJet to a high-pressure hose with a rating to meet or exceed the maximum operating pressure to be used. When a spray gun is being used in a possible explosive or flammable environment, a grounded-type hose should be used.
  3. Follow your pump and component parts manufacturer’s recommendations for operation, but in any case, do not exceed the pressure or temperature of the lowest rated component within the system.
  4. Make sure all power to the pump is turned off and there is no pressure in any part of the system. Examine all connections, making sure they are of the proper type and are secure.
  5. Before turning on the pump holds the GunJet in a downward vertical position pointed away from the body and familiarize yourself with the operation of the Trigger Lock (21).
  6. Make sure Trigger Lock (21) is in the locked position. Do not turn on the pump power or operate spray gun if Trigger Lock is not operating properly.

MAINTENANCE

With proper care, your Model 60 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:
(See Figure 1 and parts list PL 60 & 60W, PL B60 & B60W or PL 60-3/8-SS)
If it becomes necessary to disassemble this unit, 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. Set Trigger Lock (21) in the locked position.
  4. Remove the gun from the hose.
  5. Remove 7 Screws (1).
  6. Remove Right Hand Housing (2), Trigger Lock (21), and Lock Spring Ring (20).
  7. Remove Body and Trigger as a subassembly (3) thru (19) from Left Hand Housing (2).
  8. Remove Trigger (18) and Trigger Guide (19).
  9. Remove #6 Burr (15), Spring (14), Stem Nut (13).
  10. Using the hex on the Body (5) as a back-up wrenching surface, loosen Cap (3) and Packing Screw (12).
  11. Remove Cap (3) and Valve Seat (4).
  12. Holding Packing Screw (12) unscrew Body (5) from Stem Assembly (6) thru (12).
  13. Remove Gasket (11) from Packing Screw (12).
  14. Remove Packing Screw (12), Cup Packing (9), Washer (8), and Main Spring (7).
  15. If required, Trigger Guide (19) may be removed from Trigger (18) by pressing or driving out Roll Pin (16).
  16. If required, Roll Pin (17) may be removed from Trigger (18) by pressing or driving out.

ASSEMBLY PROCEDURE:
(See Figure 1 and parts list PL 60 & 60W, PL B60 & B60W or PL 60-3/8-SS)

  1. Install Main Spring (7) over Main Stem (6).

  2. Install Washer (8) onto Main Stem (6).

  3. If Cup Packing (9) and Back-up Ring (10) were not previously removed from Packing Screw (12) apply a drop of light oil on Cup Packing and carefully thread Packing Screw (12) over threads of Main Stem (6).

  4. If Cup Packing (9) and Back-up Ring (10) were previously removed from Packing Screw (12) slide Packing Screw (12) and Back-up Ring (10) onto Main Stem (6). Apply a thin coat of light oil on Cup Packing (9) and with the flat side of Cup Packing (9) facing Trigger (18) carefully screw Cup Packing over threads of Main Stem (6). Important: Cup Packing (9) must be installed in the correct direction (see Figure 1a).

  5. Install Valve Seat (4) and Cap (3) loosely onto Body (5).

  6. Insert stem assembly into Inlet Body (5); begin to thread Packing Screw (12) into Inlet Body (5).

  7. Tighten Cap (3) and Packing Screw (12).

  8. Assemble Trigger (18), Trigger Guide (19), and Roll Pin (16) and (17) if previously disassembled. Roll Pin (16) slot should face toward the threaded end of Trigger Guide (19). Lubricate the area where Roll Pin (16) contacts Trigger Guide (19) with white grease or equivalent.

  9. Thread flat side of hex Stem Nut (13) onto the threaded end of Main Stem (6) until approximately 3/16” of threaded stem projects from the recessed surface of Stem Nut (13).

  10. Install #6 Burr (washer) (15), Spring (14), and end of Main Stem (6) which has hex Stem Nut (13) onto Trigger Guide (19). Do not allow hex Stem Nut (13) to drift from a preset position on Main Stem (6).

  11. Tighten hex Stem Nut (13) using a backup wrench on the flats of Trigger Guide (19).

  12. Place Body Trigger Assembly (3) thru (19) in Left Hand Housing (2) making sure Roll Pin (17) is engaged in the hole in Left Hand Housing (2).

  13. Install Lock Spring Ring (20) in Left Hand Housing (2).

  14. Place Trigger Lock (21) in Left Hand Housing (2).

  15. Install Right Hand Housing (2) and 7 Screws (1).
    Caution: Do not over-tighten screws.

  16. Be sure Trigger Lock (21) is in the locked position before attaching it to the pump.

REPLACEMENT OF PACKING CUP (9):
Steps 1 through 14 of Disassembly Procedure and steps 1 through 16 of Assembly Procedure.
TRIGGER ADJUSTMENT PROCEDURE:
When correctly adjusted there should be no Stem (6) travel when Trigger Lock (21) is in the locked position and trigger operation is attempted. A visual check can be made by detecting no Stem Nut (13) movement. Adjust Main Stem (6) to engage Trigger Guide (19) approximately 3/16” which should result in 1/8” to 5/32” of stem travel when mounted in plastic housing. (See steps 9, 10, and 11 of Assembly Procedure.)

DATA SHEETS

ITEM PART NO. DESCRIPTION
1 CP171133 —11/16 —302SS Screw, Type 302 Stainless Steel ( / Rsq.c1)
2 CP19683-NYB Right and Left hand Housing Sat, Nylon (Black)
3 CP7800-INP Cop, Steel, Nickel Plated
4 CP17710-BRIEF Valve Seal Sub-Assembly, BOX Bronze Filled Teflon (For Model

050-3/13)
CP17710-1-BRBTEF| Valve Seal Sub-Assembly, 60% Otani• Filled Teflon (For Model

60W-3/8)

5| CP17706| Body, Brass
6| 50470-543| Stem Sub-Assembly, Type 302 Stainless Steel
7| CP17715-30255| Main Swing, Type 302 Stainless Steel
8| CP50458-SS| Washer, Stainless Steel
9| CP14255-1-1/I| Cup Pecking, VT1on
10| CP17712-TEF| Book Up Ring, Teflon
11| CP17717-AL| Gasket, Aluminum
12| CF17718| Pecking Screw, Bross
13| CP7484-SS| Stem Hut, Stainless Steel
14| CP7 489 – 302SS| Trigger Stop Spring, Type 302 Stainless Steel
15| CP7622 —302’S-S| 05 Burr, Type 302 Stainless Ste&
16| CP 17720— 42055| Role Pin, Type 420 Stainless Steel
ITEM| PART NO.| DESCRIPTION
---|---|---
17| | CP 17889-420SS| Roll Pln, Type 420 Stainless Ste.
18| | CP17703-NY| Trigger, Nylon (Gray)
19| | CP19810| Trigger Guide, Ow
20| | 0:117719-1-CE| Lock Spring Ring, Saloon
21| | CP17704-NY| Trigger-Lock, Nylon (Gray)
| | 50420| Sua-Assembly (Includes items 8 Thru 15 dr 19 )
| No. AA60-3/8, GunJetSpray Gun
| No. AA801Y-3/8, GanJet
Spray Gun – With “Weer Feature

DESCRIPTION:
AA SO-3/8 And AA6OW-318
GutsJets Spray Guns
Spraying Systems Co:
Spray Nozzles and Accessories P.0_ Box 7900 – Whnrtapti IL 80187-7901
Rey Na. 3
Ref.
Pat LW No a 60, 601V SHEET OF

MODEL.N0.*| INLET
CONN.**| OUTLET CONN.| OVERALL LENGTH
---|---|---|---
60-3/8| 3/8″ NPT (F) OR 3/8″ BSPT (F)| 1I/16″-THD. (M)
TO FIT 7890 CAP| 8-3/4″
(222 mm)

WARNING
READ INSTRUCTION SHEET MI-60 BEFORE USING A SPRAY GUN. HIGH-PRESSURE SPRAYS AND HOT LIQUID SPRAYS CAN CAUSE SERIOUS BODILY INJURY. EXERCISE EXTRA CARE AND CAUTION WHEN HANDLING THE GUN, GRASP IT FIRMLY WITH BOTH HANDS ON THE HANDLE. ADOPT PROPER BODY STANCE TO ANTICIPATE REACTION THRUST OF SPRAY GUN. NEVER PUT YOUR HAND OR BODY IN FRONT OF THE ORIFICE. DO NOT POINT GUNS AT OTHERS. WHEN NOT USING A GUN KEEP THE TRIGGER LOCK IN THE LOCKED POSITION.
BEFORE REMOVING THE SPRAY TIP OR NOZZLE, SHUT OFF THE PUMP, AND RELIEVE FLUID PRESSURE FROM THE SYSTEM BY RETRACTING THE TRIGGER TO THE “ON” POSITION UNTIL ALL FLUID CEASES TO FLOW.
WHEN SPRAYING HOT LIQUIDS, THE OPERATOR MUST BE CAUTIOUS TO AVOID BODY CONTACT WITH THE NON-INSULATED PARTS OF GUN, EXTENSION, ETC…

NO. 60 GUNJET FEATURES

  • HEAVY DUTY . . . DESIGNED TO WITHSTAND HIGH IMPACT AND ROUGH USAGE.

  • SMOOTH AND EASY TO OPERATE . . . LIGHT TRIGGER PULL WITH POSITIVE FEEL MAINTAINED AND CONTROLLED, EVEN UNDER MAXIMUM DESIGN OPERATING FLOW AND PRESSURE CONDITIONS.

  • HANDLE REMAINS COMFORTABLE DURING HOT SPRAYING OPERATIONS UP TO 300° F (150°C)

  • HANDLE GRIP DESIGNED FOR GLOVED OR UN-GLOVED HAND.
    VITON STEM SEAL WITH TEFLON BACKUP RING.

  • BRONZE-FILLED TEFLON VALVE SEAT.

  • STAINLESS STEEL SHUT-OFF NEEDLE.

  • SINGLE PIECE BRASS FORGED VALVE BODY

  • TRIGGER LOCK RETRACTS FLUSH IN HANDLE WITH DETENT HOLD.

  • SHORT HAND GRIP (HANDLE TO TRIGGER).

  • PRESSURES UP TO 2500 PSI (172 Bar).

  • FLOW RATES UP TO 6 GPM (23 L/Min.). PRESSURE DROP AT 6 GPM (23 L/Min.) IS 90 PSI (6 Bar).

  • MAXIMUM TEMPERATURE – 300’0,(150’C).

  • OUTER CASING WITH TRIGGER GUARD MOLDED OF HIGH IMPACT NYLON MATERIAL.

  • WILL ACCOMMODATE STANDARD SS CO. ACCESSORIES FOR BOTH THE INLET AND OUTLET CONNECTION (WITHIN THE ACCESSORIES PRESSURE LIMITATIONS) SUCH AS: EXTENSION, SWIVELS, STRAINERS AND ADAPTERS.

  • WEIGHT – I LB. (C.45 kg) OVERALL HEIGHT – 6-1/2″ (165 rim)

Spraying Systems Co:| |
---|---|---
Spray Nozzles and Accessories| |
P.O. Box 7900 – Wheaton, II. 80189-7900
Rev. No. 4| | Data Sheet No.
18208
SHEET OF
Ref.|

MODEL NO.| INLET
CONNECTION| OUTLET CONNECTION| OVERALL LENGTH
---|---|---|---
60-3/8-ss| 3/8″ w pt a.'” ”” 1| 11/16″-16 THD. TO FIT
17890-ss TIP RETAINER| 8-3/4″
(222 mm)
6 -3/8-SS
“s60-3/8-sS| 3/8″ BSPT(F)
B6ow-3/8-SS

*MODEL NOS. 60w- is B60w- WITH “WEEP” FEATURE (TO MINIMIZE CHANCE OF FREEZING) ARE ALSO AVAILABLE WITH THE SAME FEATURES AS TABULATED.
WARNING
READ INSTRUCTION SHEET MI-60-3/8-SS BEFORE USING SPRAY GUN. HIGH-PRESSURE SPRAYS AND HOT LIQUID SPRAYS CAN CAUSE SERIOUS BODILY INJURY. EXERCISE EXTRA CARE AND CAUTION WHEN HANDLING THE GUN, GRASP IT FIRMLY WITH BOTH HANDS ON THE HANDLE. ADOPT PROPER BODY STANCE TO ANTICIPATE REACTION THRUST OF SPRAY GUN. NEVER PUT YOUR HAND OR BODY IN FRONT OF THE ORIFICE. DO NOT POINT GUNS AT OTHERS. WHEN NOT USING A GUN KEEP THE TRIGGER LOCK IN THE LOCKED POSITION.
BEFORE REMOVING SPRAY TIP OR NOZZLE, SHUT OFF PUMP, RELIEVE FLUID PRESSURE FROM THE SYSTEM BY RETRACTING TRIGGER TO “ON” POSITION UNTIL ALL FLUID CEASES TO FLOW.
WHEN SPRAYING HOT LIQUIDS, OPERATOR MUST BE CAUTIOUS TO AVOID BODY CONTACT WITH THE NON-INSULATED PARTS OF GUN, EXTENSION, ETC…

NO. 60-3/8—SS GUNJET FEATURES:

  • HEAVY DUTY . . . DESIGNED TO WITHSTAND HIGH IMPACT AND ROUGH USAGE.
  • IP SMOOTH AND EASY TO OPERATE . . LIGHT TRIGGER PULL WITH POSITIVE FEEL MAINTAINED AND CONTROLLED, EVEN UNDER
  • MAXIMUM DESIGN OPERATING FLOW AND PRESSURE CONDITIONS.
  • ID HANDLE REMAINS COMFORTABLE DURING HOT SPRAYING OPERATIONS UP TO 300° F (150°C).
  • OHANDLE GRIP IS DESIGNED FOR GLOVED OR UN-GLOVED KANO.
  • ALL WETTED PARTS ARE MADE OF STAINLESS STEEL, VITON, OR TEFLON FOR BETTER CORROSION RESISTANCE INCLUDING:
  • OVITON STEM SEAL WITH TEFLON BACK-UP RING * STAINLESS STEEL FILLED TEFLON VALVE SEAT OSTA1NLESS STEEL SHUT-OFF NEEDLE
  • TRIGGER LOCK RETRACTS FLUSH IN HANDLE WITH DETENT HOLD. 40 SHORT HAND GRIP (HANDLE TO TRIGGER). II PRESSURES UP TO 2500 PSI (172 Bar).
  • FLOW RATES UP TO 6 GPM (23 L/Min.). PRESSURE DROP AT 6 GPM (23 L/Min.) IS 90 PSI (6 Bar).
  • MAXIMUM TEMPERATURE – 300°F (150°C).
  • OUTER CASING WITH TRIGGER GUARD MOLDED OF HIGH IMPACT NYLON MATERIAL.
  • WILL ACCOMMODATE STANDARD SS CO. ACCESSORIES FOR BOTH THE INLET AND OUTLET CONNECTION (WITHIN THE ACCESSORIES
  • PRESSURE LIMITATIONS) SUCH AS EXTENSION, SWIVELS, STRAINERS AND ADAPTERS.
    4111 WEIGHT – 1-1/4 LB. (.7 kg) OVERALL HEIGHT – 6-1/2″ (165 mm)

Spraying Systems Co:| |
---|---|---
Spray Nozzles and Accessories|
P.O. Box 7900 – Wheaton, II. 60189-7900
Rev. No.| | Data Sheet No.
60-SS
SHEET OF
Ref.|
|

North Avenue and Schmale Road, P.O. Box 7900,
Wheaton, IL 60187-7901

Tel: 1.800.95.SPRAY Intl. Tel: 1.630.665.5000
Fax: 1.888.95.SPRAY Intl. Fax: 1.630.260.0842

**www.spray.com

MI-60
© Spraying Systems Co. 2019**

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