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Table of Contents

Safety Precautions .................................................................2

Français ..............................................................................18
Español ...............................................................................20

General Description ...............................................................4
Operation ................................................................................4

Setup ....................................................................................4
Preparing to Paint .................................................................4
Painting .................................................................................5
Pressure Relief Procedure ...................................................6

Spraying ..................................................................................6

Spraying Technique ..............................................................6
Practice .................................................................................6

Cleanup ...................................................................................7
Maintenance............................................................................7

General Repair and Service Notes.......................................7
Maintaining the Engine .........................................................8
Replacing the Filter...............................................................8
Replacing the PRIME/SPRAY Valve.....................................8
Replacing the Potentiometer ................................................9
Replacing the Pump ON/OFF Switch ...................................9
Replacing the Transducer...................................................10
Replacing the Electronic Pressure Control (EPC) Board ...10
Replacing the Slider Assembly and Slider Housing............11
Replacing the Gears ...........................................................12
Servicing the Clutch Assembly ...........................................12
Servicing the Fluid Section .................................................14

Troubleshooting ...................................................................17
Parts Listings........................................................................22

Main Assembly....................................................................22
Drive Assembly ...................................................................23
Fluid Section Assembly ......................................................24
Cart Assembly.....................................................................25
Filter Assembly ...................................................................25
PRIME/SPRAY Assembly ...................................................26
Electrical Schematic ...........................................................26
Labels .................................................................................26

Limited Warranty ..................................................................28

Safety Precautions

This manual contains information that must be read and
understood before using the equipment. When you come to an
area that has one of the following symbols, pay particular
attention and make certain to heed the safeguard.

This symbol indicates a potential hazard that may cause
serious injury or loss of life. Important safety information will
follow.

This symbol indicates a potential hazard to you or to the
equipment.  Important information that tells how to prevent
damage to the equipment or how to avoid causes of minor
injuries will follow.

HAZARD: Injection injury  -  A high pressure 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 gun is 3300 PSI /
22.8 MPa fluid pressure.

WARNING

NOTE: Notes give important information which should

be given special attention.

CAUTION

WARNING

2

© SprayTECH.  All rights reserved.

PREVENTION:

• NEVER aim the gun at any part of the body. 
• 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 off the motor.  The PRIME/SPRAY knob
must be turned to PRIME to relieve the pressure.  Refer to
the PRESSURE RELIEF PRESSURE described in the pump
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.

• The paint hose can develop leaks from wear, kinking and

abuse.  A leak can inject material into the skin.  Inspect
the hose before each use.

• NEVER use a spray gun without a trigger lock and trigger

guard in place and in good working order.

• All accessories must be rated at or above 3300 PSI / 22.8

MPa.  This includes spray tips, guns, extensions, and
hose.

HAZARD: EXPLOSION OR FIRE - Solvent and paint fumes

can explode or ignite.  Severe injury and/or
property damage can occur.

PREVENTION:

• Provide extensive exhaust and fresh air introduction to

keep the air within the spray area free from accumulation
of flammable vapors.

• Avoid all ignition sources such as static electric sparks,

open flames, pilot lights, and hot objects.  Connecting or
disconnecting power cords or working light switches can
make sparks.

• Do not smoke in spray area.
• Fire extinguisher must be present and in good working

order.

• Place paint pump in a well ventilated area.  Flammable

vapors are often heavier than air.  Floor area must be
extremely well ventilated.  The paint pump contains arcing
parts that emit spark and can ignite vapors. 

• The equipment and objects in and around the spray area

must be properly grounded to prevent static sparks.

• Use only conductive or grounded high pressure fluid hose.

Gun must be grounded through hose connections.

• Power cord must be connected to a grounded circuit

(electric models only).

• 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.

• Use extreme caution when using materials with a

flashpoint below 70° F (21° C). 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.

NOTE TO PHYSICIAN:
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.

Summary of Contents for GPX 1600

Page 1: ...o 0509813A Printed in the U S A GPX 1600 Gas Piston Pump SprayTECH 1770 Fernbrook Lane Minneapolis MN 55447 Technical Assistance 1 800 292 4637 Order Entry 1 800 443 4500 Fax 1 800 525 9501 www sprayt...

Page 2: ...SPRAY knob must be turned to PRIME to relieve the pressure Refer to the PRESSURE RELIEF PRESSURE described in the pump manual ALWAYS keep the tip guard in place while spraying The tip guard provides...

Page 3: ...paint hose Replace it with another grounded high pressure hose All hoses swivels guns and accessories must be rated at or above 3300 PSI 22 8 MPa Do not spray outdoors on windy days Wear clothing to...

Page 4: ...uid 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 Always keep the trigger lock on the...

Page 5: ...n the fuel valve lever WARNING WARNING NOTE Make sure that the spray gun does not have a tip or tip guard installed b Move the throttle lever away from the gas tank c Close the engine choke lever d Ho...

Page 6: ...s or high solid coating remove the gun filter and high pressure filter screens WARNING 6 SprayTECH All rights reserved Keep the spray gun perpendicular to the surface otherwise one end of the pattern...

Page 7: ...ent coming out of the gun is clean NOTE For long term or cold weather storage pump mineral sprits through the entire system WARNING WARNING CAUTION WARNING SprayTECH All rights reserved 7 17 Follow th...

Page 8: ...plug Gap the plug 0 025 0 030 0 7 0 8 mm Make sure to use a spark plug wrench when installing and removing the plug NOTE For detailed engine specifications and maintenance refer to the separate engine...

Page 9: ...on the EPC board connector will mate with the slot on the potentiometer wires connector The connector on the end of the potentiometer wires and the connector on the EPC board will mate only one way D...

Page 10: ...removed Push the wire and connector until the connector is visible in the EPC housing 15 Gently pull the wire into the EPC housing while moving the filter assembly to its mounting point on the cart G...

Page 11: ...p with Lubriplate 3000W grease the slider cup is the area on the slider assembly where the connecting rod and slider housing join and pivot 14 Insert the slider assembly into the bushing end of the sl...

Page 12: ...w 12 SprayTECH All rights reserved 16 Place the thick thrust washer onto the crankshaft up against the gear hub Next place the thin thrust washer up against the thick washer on the crankshaft 17 Place...

Page 13: ...Screw Straight Edge Taper Lock Bushing NOTE A new clutch hub and armature assembly will come pre assembled but the set back will not be correct The set back must still be created using the hub set up...

Page 14: ...gear housing 3 Using a 1 2 wrench snug and tighten the hex screws in a crossing pattern Torque to 140 155 in lbs 4 Using a 9 16 socket thread the two hex screws that secure the gear housing to the car...

Page 15: ...of the outlet valve retainer Torque the outlet valve retainer to 144 in lbs 27 Remove the piston rod from the vise 28 Clean the cylinder Inspect the cylinder for damage and replace if necessary 29 Pla...

Page 16: ...let valve housing until the o ring engages then continue to tighten until snug 51 Using a wrench hold the cylinder by the wrench flats and torque the inlet valve housing to 1020 1080 in lbs 52 Thread...

Page 17: ...e 3 Remove the pump filter element and clean Remove the inlet screen and clean 4 Remove the siphon tube suction set and clean 1 Replace the spray tip following the instructions that came with the spra...

Page 18: ...tion particuli re ATTENTION AVERTISSEMENT DANGER RISQUES D EXPLOSION OU D INCENDIE Les vapeurs d gag es par le solvant ou la peinture sont explosives et inflammables et peuvent causer des corporels s...

Page 19: ...ag s Si le flexible a subi l un des dommages pr cit s remplacez le imm diatement Ne jamais r parer un flexible d alimentation en peinture Le remplacer par un autre flexible mis la terre Tout flexible...

Page 20: ...VENIR Debe proveerse un escape y aire fresco para hacer que el aire que est dentro del rea de atomizaci n se mantenga libre de acumulaciones de vapores inflamables Evite todas las fuentes de ignici n...

Page 21: ...stolas y accesorios que se usen con esta unidad deben tener una capacidad de presi n de 3300 lb pulg2 22 8 MPa o mayor No atomice en d as con viento Use ropa que evite el contacto de la pintura con la...

Page 22: ...8 0509552 Screw 4 9 0509520 Connecting pin 1 10 0509521 Retaining ring 1 11 0509144 Fluid section assembly 1 12 0509651 Siphon tube 1 13 0507783 Hose clip 1 Item Part Description Quantity 14 5006536...

Page 23: ...Part Description Quantity 22 0507740 Pressure control knob 1 23 0507749 Seal nut 1 24 0509557 Mounting plate 1 25 0507784 Grommet 7 16 1 26 0509531 Grommet liquid tight 1 27 0509136 Gear housing 1 28...

Page 24: ...3 Seal washer 1 10 0509938 Piston 1 11 0509648 Outlet valve seal 1 12 0509601 Outlet cage 1 13 0509710 Outlet valve ball 1 14 0507454 Nylon washer 1 15 0509655 Outlet valve seat 1 16 0507733 Outlet va...

Page 25: ...er 2 9 9885571 Plug 2 10 0295606 Lock washer 4 11 0295608 Screw 4 12 0509575 Cart includes item 9 1 13 0509624 Wheel 2 10 11 12 13 7 2 3 4 5 6 8 9 1 Filter Assembly Item Part Description Quantity 1 02...

Page 26: ...9 0507747 Spring 1 10 0507742 Valve retainer 1 11 0507735 Cam base 1 12 5006543 Groove pin 1 13 0507662 Valve handle 1 1 2 3 4 5 6 7 8 9 10 11 12 13 Electrical Schematic Labels Part Description 050982...

Page 27: ...SprayTECH All rights reserved 27 Notes...

Page 28: ...be deemed to have failed of their essential purpose so long as SprayTECH is willing to repair or replace parts or to refund the purchase price as set forth above What Is Not Covered By This Warranty...

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