GUSMER GX-7-DI Operating Manual

"Teamwork & Communication"

Model GX-7-DI

Spray Gun

Operating Manual

22943-1

October 3, 2001

Issue 1

GUSMER CORPORATION

A Subsidiaryof Gusmer MachineryGroup, Inc.

One Gusmer Drive

Lakewood, New Jersey, USA 08701-8055

Toll Free 1-800-367-4767 (USA & Canada)

Phone: [phone]

Fax: [phone]

Copyright 2001, GUSMER CORPORATION

http://www.gusmer.com

®

®

NOTICE: This manual contains important information for your GUSMER equipment. Read and retain for future reference.

Model GX-7-DI Spray Gun

CONTENTS

LIST OF FIGURES..........................................................................................................3

WARRANTY ....................................................................................................................4

GENERAL SAFETY INFORMATION..........................................................................5

A

CCEPTABLEEQUIPMENT USES.......................................................................................5

O

PERATIONALSAFETY PROCEDURES...............................................................................6

DESCRIPTION.................................................................................................................7

M

AJOR COMPONENTS......................................................................................................7

G

UN SERVICE KITS..........................................................................................................8

OPERATION....................................................................................................................9

AFETY POSITION OF GUN ...............................................................................................9

S
M

ANUAL VALVES............................................................................................................9

A

IR LINE CONF IGURATION.............................................................................................10

M

IXING MODULE AND PCD INSTALLATION...................................................................11

S

TART-UP......................................................................................................................11

S

HUTDOWN....................................................................................................................12

CLEANING PROCEDURE...........................................................................................13

SERVICING PROCEDURES........................................................................................15

CREEN SCREW REMOVAL AND SERVICE PROCEDURE .................................................15

S
C

ENTERLINE COMPONENT REMOVAL ............................................................................16

C

ENTERLINE COMPONENT INSTALLATION ..................................................................... 18

V

ALVINGROD ADJUSTMENT .........................................................................................19

E

ND CAP AND AIR PISTON O-RING AND CUP SEAL REPLACEMENT................................21

T

RIGGER VALVE O-RING REPLACEMENT.......................................................................23

INSTRUCTION MANUAL DISCREPANCY REPORT............................................25

2 22943-1, Issue 1

Operating Manual Contents

LIST OF FIGURES

FIGURE 1. MAJOR COMPONENTS .......................................................................................7

F

IGURE 2. CENTERLINE COMPONENTS...............................................................................7

F

IGURE 3. 1-QUART GUN SERVICE KIT (P/N OP205) ........................................................8

F

IGURE 4. 3-GALLON GUN SERVICE KIT (P/N OP206) ......................................................8

F

IGURE 5. SAFETY STOP CLOSED POSITION .......................................................................9

F

IGURE 6. SAFETY STOP OPEN POSITION ...........................................................................9

F

IGURE 7. MANUAL VALVES ..............................................................................................9

F

IGURE 8. AIR LINE CONFIGURATION ..............................................................................10

F

IGURE 9. CENTERLINE COMPONENT REMOVAL...............................................................16

F

IGURE 10. VALVING ROD REMOVAL...............................................................................17

F

IGURE 11. CENTERLINE COMPONENT INSTALLATION .......................................................18

F

IGURE 12. END CAP ASSEMBLY AND PISTON ASSEMBLYREMOVAL..................................21

F

IGURE 13. TRIGGER/AIR VALVE ASSEMBLY.....................................................................23

10/3/01 3

Model GX-7-DI Spray Gun

WARRANTY

Gusmer Corporation (Gusmer) provides a limited warranty to the original purchaser (Customer) of
Gusmer manufactured parts and equipment (Product) against any defects in material or
workmanship for a period of one year from the date of shipment from Gusmer facilities.

In the event Product is suspected to be defective in material or workmanship, it must be returned to
Gusmer, freight prepaid. If Product is found to be defective in material or workmanship, as
determined solely by Gusmer, Gusmer will issue full credit to Customer for the freight charges
incurred in returning the defective Product, and either credit will be issued for the replacement cost
of the Product or a replacement part will be forwarded no-charge, freight prepaid to Customer.

This warranty shall not apply to Product Gusmer finds to be defective resulting from: installation,
use, maintenance, or procedures not accomplished in accordance with our instructions; normal
wear; accident; negligence; alterations not authorized in writing by Gusmer; use of “look alike”
parts not manufactured or supplied by Gusmer; or Product used in conjunction with any other
manufacturer's pumping or proportioning equipment. Further, the terms and conditions of this
warranty shall not apply to services or repairs made to Product by any third party not authorized in
writing by Gusmer. For such Product, a written estimate will be submitted to Customer at a
nominal service charge, itemizing the cost for repair. Disposition of Product will be done in
accordance with the terms stated on the written estimate.

The warranty provisions applied to product that are not manufactured by Gusmer will be solely in
accordance with the warranty provided by the original manufacturer of the product.

GUSMER MAKES NO WARRANTY WHATSOEVER AS TO THE MERCHANTABILITY OF,
OR SUITABILITY FOR, ITS PRODUCT TO PERFORM ANY PARTICULAR PURPOSE.
CREDIT FOR, OR REPLACEMENT OF, PRODUCT DEFECTIVE IN MATERIAL OR
WORKMANSHIP SHALL CONSTITUTE COMPLETE FULFILLMENT OF GUSMER
OBLIGATIONS TO CUSTOMER. NO OTHER WARRANTY, EXPRESS OR IMPLIED ON
ANY PRODUCT IT MANUFACTURES AND/OR SELLS, WILL BE RECOGNIZED BY
GUSMER UNLESS SAID WARRANTY IS IN WRITING AND APPROVED BY AN OFFICER
OF GUSMER.

Under no circumstances shall Gusmer be liable for loss of prospective or speculative profits, or
special, indirect, incidental or consequential damages. Further, Gusmer shall have no liability for
any expenses including, but not limited to personal injury or property damageresulting from failure
of performance of the product, use of the product, or application of the material dispensed through
the product. Any information provided by Gusmer that is based on data received from a third
source, or that pertains to product not manufactured by Gusmer, while believed to be accurate and
reliable, is presented without guarantee, warranty, or responsibility of any kind, expressed or
implied.

Gusmer through the sale, lease, or rental of Product in no way expresses or implies a license for the
use of, nor encourages the infringement of any patents or licenses.

To insure proper validation of your warranty, please complete the warranty card and return it to
Gusmer within two weeks of receipt of equipment.

Revised 11/12/98

4 22943-1, Issue 1

Operating Manual General Safety Information

GENERAL SAFETY INFORMATION

It is necessary to understand and follow the instructions in this manual to ensure proper
and safe operation of the equipment.

As with most mechanical equipment, certain safety precautions must be taken when the
equipment discussed in this manual is operated or serviced. Severe bodily injuryor
damage to equipment and property mayresult if the instructions and precautions listed
throughout this manual are not followed.

Needless to say, sufficient guidelines cannot be developed to eliminate the need for good
common sense in the use and servicing of this equipment, and in the use and application
of the products, this equipment has been designed to process. Users of this equipment
must therefore, make their own determination as to the suitability of the information
contained in this manual to their specific operation and requirements. There should be no
assumption made that the safety measures and instructions contained herein are all­inclusive, and that other safety measures may not be required for specific use or
application.

The following safety guidelines are generallyapplicable to the safe and efficient use of
the equipment.

Acceptable Equipment Uses

The equipment is designed for the dispensing of polyurethane foams, two-component
coating systems, and some two-component epoxy systems, specifically polyureas. Under
no circumstances should anyacid or corrosive chemicals be used in the unit. Consult
GUSMER if there is any doubt about the compatibility of the chemical system to be used
in this equipment.

Any use of this equipment other than as indicated above constitutes misuse unless express
written approval is obtained from GUSMER.

10/3/01 5

Model GX-7-DI Spray Gun

Operational Safety Procedures

This safety information will not be repeated in the text of this manual. The symbols
pertaining to this information will appear where appropriate to alert the operator to
potential hazards.

Solvents and Chemicals

High Voltage

High Pressure

Personal Protective

Equipment

WARNING: T

OPERATOR TO CERTAIN HAZARDS.ADEQUATE PERSONAL PROTECTIVE MEASURES MUST BE
TAKEN SO AS TO AVOID EXCEEDING THE
BEING USED

HE SOLVENTS AND CHEMICALS USED WITH THIS EQUIPMENT EXPOSE THE

THRESHOLD LIMIT VALUE (TLV) OF THE PRODUCTS

, AS ESTABLISHED BY THE OCCUPATIONAL SAFETY ANDHEALTHADMINISTRATION

(OSHA) OR OTHER QUALIFIED AGENCY.OBTAIN INFORMATION CONCERNING PERSONAL

PROTECTION AND PROPER HANDLING FROM THE SUPPLIER OF SUCH CHEMICALS

WARNING: T

THE ELECTRIC CONSOLES OR OTHERWISE SERVICE THIS EQUIPMENT AND/OR EQUIPMENT USED
WITH IT BEFORE SWITCHING OFF THE MAIN POWER DISCONNECT AND INTERRUPTINGSUPPLY
VOLTAGE AT THE SOURCE
A QUALIFIED ELECTRICIAN

WARNING: T

COMPONENTS CAPABLE OF PRODUCING UP TO 3500 PSI.TO AVOID SERIOUS BODILYINJURY
FROM HYDRAULIC INJECTION OF FLUID
SERVICE HYDRAULIC COMPONENTS WITHOUT BLEEDING ALL PRESSURES TO ZERO

WARNING: T

WHEN OPERATING, SERVICING, ORBEINGPRESENT IN THE OPERATIONAL ZONE OF THIS
EQUIPMENT
SAFETY SHOES, AND RESPIRATORY EQUIPMENT AS REQUIRED.

O PREVENT SERIOUS BODILY INJURYFROMELECTRICALSHOCK, NEVER OPEN

.THE ELECTRICAL SERVICE MUST BE INSTALLED AND MAINTAINED BY

.

HIS EQUIPMENT HAS OR IS USED WITH EQUIPMENT THAT HAS HYDRAULIC

, NEVER OPEN ANY HYDRAULIC CONNECTIONS OR

O AVOID SERIOUS BODILY INJURY, PROPER PROTECTIVE GEAR MUST BE WORN

.THIS INCLUDES, BUT IS NOT LIMITED TO, EYE AND FACE PROTECTION, GLOVES,

.

.

WARNING: T

TEMPERATURE COMPONENTS SUCH AS PRIMARY HEATERS AND HEATED HOSES.TO PREVENT
SERIOUS BODILY INJURY FROM HOT FLUID OR HOTMETAL
EQUIPMENT BEFORE ALLOWING IT TO COOL

HIS EQUIPMENT HAS OR IS USED WITH EQUIPMENT THAT HAS HIGH

, NEVER ATTEMPT TO SERVICE THE

.

High Temperature

WARNING: F

PERSONAL INJURY AND/OR DAMAGE TO THE EQUIPMENT FROM ONE OR MORE OF THE ABOVE
LISTED HAZARDS

AILURE TO READ AND FOLLOW THIS SAFETY INFORMATION MAY RESULT IN

.

Warning

6 22943-1, Issue 1

Operating Manual Description

DESCRIPTION

Major Components

In order to gain a thorough understanding of the GX-7-DI Spray Gun, please take time to
become familiar with its Major Components (See Figure 1) and its Centerline
Components (See Figure 2). This will be helpful later when these items are covered in
the manual.

Figure 1. Major Components

Figure 2. Centerline Components

10/3/01 7

Gun Service Kits

NOTE:

For more information

concerning the 1-Quart Gun

Service Kit, consult the Parts

Identification Manual

(P/N OP205-ID).

Model GX-7-DI Spray Gun

Cleaning the GX-7-DI Spray Gun with the 1-Quart Gun Service Kit (P/N OP205) or the
3-Gallon Gun Service Kit (P/N OP206) is essential to its proper operation. Both kits are
available separately.

NOTE:

For more information

concerning the

3-Gallon Gun Service Kit,

consult the Parts Identification

Manual

(P/N OP206-ID).

Figure 3. 1-Quart Gun Service Kit (P/N OP205)

Figure 4. 3-Gallon Gun Service Kit (P/N OP206)

8 22943-1, Issue 1