Graco GM 3500 Operation manual

308–623

Rev. A

INSTRUCTIONS-PARTS

LIST

INSTRUCTIONS

This

manual contains important

warnings and information.

READ AND KEEP FOR REFERENCE.

3500



AIRLESS P

AINT SPRA

YERS

Clutch Rotor/Field Clearance Adjustment

GENERAL REP

AIR INFORMA

TION

WARNING

INJECTION

HAZARD

The system pressure must be manually

relieved to prevent the system from

starting or spraying accidentally

. Fluid

under high pressure can be injected through the

skin and cause serious injury

. T

o reduce the risk of

an injury from injection, splashing fluid, or moving

parts, follow the

Pressure Relief Procedure

whenever you:



are instructed to relieve the pressure,



stop spraying,



check or service any of the system equipment,



or install or clean the spray tip.

Pressure Relief Procedure

Engage the gun safety latch.

urn the ON/OFF switch to OFF

Unplug the power supply cord.

Disengage the gun safety latch. Hold a metal part

of the gun firmly to a grounded metal pail. T

rigger

the gun to relieve pressure.

Engage the gun safety latch.

6. Open the pressure drain valve. Leave the pressure

drain valve open until ready to spray again.

If you suspect that the spray tip or hose is completely

clogged, or that pressure has not been fully relieved

after following the steps above

, VER

Y SLOWL

Y loos

en the tip guard retaining nut or hose end coupling to

relieve pressure gradually

, then loosen completely

Now clear the tip or hose obstruction.

est your repair before regular operation

of the

sprayer to be sure the problem is corrected.

GRACO INC. P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

COPYRIGHT

1996, GRACO INC.

Graco

Inc. is registered to I.S. EN ISO 9001



Adjustment

WARNING

reduce the risk of serious injury

, follow the

illustrated

Pressure Relief Procedure

on page 1

before performing this procedure.

NOTE: Read the GENERAL REPAIR INFORMATION

page 1 before doing this procedure.

Tool List

3/16

in. hex key wrench

1/4 in. hex key wrench

Standard screwdriver

Cleaning solvent

Remove any residue from the clutch housing (2).

Seat the field (6) squarely in the clutch housing.

Do not tighten the four field set screws (12).

Install the rotor (4b). Set the clearance between

the outside diameter of the rotor and the inside

diameter of the field with the four 0.006 in.

(0.15 mm) gages (A), supplied. Place the gauges

90_ apart.

4. Adjust

the position of the field with the four field set

screws to maintain 0.006 in. (0.15 mm) minimum

clearance all the way around the rotor

5. T

ighten the four field set screws, evenly

, to 27 in-lb

(3.2 N

m). Remove the four gauges.

Fig. 1 05701

Sales

Offices:

Atlanta, Chicago, Detroit, Los Angeles

Foreign Offices:

Belgium, Canada, England, Korea, Switzerland, France, Germany

, Hong Kong, Japan

GRACO INC. P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

PRINTED

IN U.S.A. 308–623 February

1996

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