GRS GraverMax G8 Manuale utente

NOTICE

This engraving system requires clean, dry, oil-free air. An oil-free compressor is

YLJVTTLUKLKMVY\ZL^P[O[OPZZ`Z[LT-VYHU`VPS[`WLJVTWYLZZVYZHUVPSYLTV]HSÄS[LY

(coalescing type) in the air supply line to this engraving system MUST BE INSTALLED AND

IN USE.

OIL OR WATER CONTAMINATION

IS NOT COVERED

BY WARRANTY.

-VYOLSW^P[OVYKLYPUNVYPUZ[HSSPUNHUVPSYLTV]HSÄS[LYVYMVYN\PKHUJL^P[OVWLYH[PVUVY

maintenance, please contact GRS or an authorized GRS dealer.

To send a request for assistance via electronic formats, e-mail [email protected] or visit:

http://www.grstools.com/customerservice/

Important notes are highlighted in yellow or marked in red.

GraverMax G8

OPERATION AND MAINTENANCE MANUAL

#004-995

ORIGINAL INSTRUCTIONS

READ THIS MANUAL ENTIRELY

BEFORE CONNECTING TO POWER.

Damage not covered by the warranty may result from not

following the instructions and maintenance in this manual.

Manual Contents

Important Notice For Operators . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Required Equipment & Important Notes . . . . . . . . . . . . . . . . . . . . .2

Introduction, Unpacking The Unit . . . . . . . . . . . . . . . . . . . . . . . . . .4

Setup & Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Mount & Connect Air Filter, Connect Foot Throttle, Connect Handpiece(s),

Using an Air-Driven Rotary Handpiece, Connect Electrical Power

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Strokes Per Minute (SPM), Fine Adjustments for Handpiece Operation,

Handpiece Adjustment Troubleshooting, Foot Throttle Operation,

Handpiece Operation, Adjustments Using the Bias Control

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Handpiece, Foot Throttle, GRS Ultra 850 Rotary Handpiece

Important Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

GRS Progressive Foot Throttle Owners, Air Contaminants & Water

Accumulation

Service & Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Wiring, Hose Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover

READ THIS MANUAL ENTIRELY

BEFORE CONNECTING TO POWER.

Damage not covered by the warranty may result from not

following the instructions and maintenance in this manual.

FOR PROPER OPERATION, THIS SYSTEM REQUIRES:

 Included 24-volt power converter connected to a properly grounded electrical

power outlet

 Clean, dry, oil-free air provided by an air compressor

 A compatible GRS pneumatic handpiece

 A graver or similar tool

 A clean, sturdy work surface with adequate lighting

 Workholding device or material

IMPORTANT NOTICE FOR OPERATORS

Read this manual thoroughly before operation. The manufacturer is

not responsible for injury resulting from improper operation or when

used by untrained operators.

+VUV[TVKPM`[OPZLX\PWTLU[VYYLTV]L^HYUPUNSHILSZ4VKPÄJH[PVUZ

can increase risks to the operator. Do not use this equipment if it is

damaged. This equipment allows the use of small sharp cutting tools

that can break suddenly. Always wear eye protection appropriate for

each application, and protect hands from sharp edges.

Like other power tools, this device exposes the operator to

mechanical vibration. If any user experiences discomfort, pain,

U\TIULZZHJOPUNL[JPU[OLPYOHUKZÄUNLYZHYTZVYYLSH[LKQVPU[Z

discontinue use and consult with an appropriate health professional.

Although this equipment does not generate dust itself, the tools used

in the handpieces may do so. When sharpening tools, the user should

take appropriate steps to avoid dust inhalation. Certain tool materials

generate harmful dust while being ground or sharpened.

;OLWYVWLY\ZLVM[OPZLX\PWTLU[KVLZUV[NLULYH[LZPNUPÄJHU[VY

harmful noise emissions.

 Included 24-volt power converter

USE ONLY THE SUPPLIED 24-VOLT POWER CONVERTER. The included power

converter may be connected to any properly grounded single-phase source of

AC power within a voltage range of 100 to 240 V, 50 or 60 Hz. If necessary, use

the supplied grounded 2-prong plug adapter or other suitable adapter. The power

converter must be used with a suitable grounded electrical system. Using it with an

ungrounded system could expose the equipment to electrical damage. Do not use

older generation power converters. If a replacement is needed, contact GRS or an

authorized GRS dealer to order #022-987

DO NOT OPERATE THE MACHINE WITHOUT A COMPRESSED AIR SUPPLY.

Compressed air not only provides the handpiece with power, it lubricates internal

components including the rotary air valve. Do not add oil or any lubricant to the

compressed air supply.

 A compatible GRS pneumatic handpiece

All GRS Standard Handpieces (and GRS Airtact Handpieces with an attached

Airtact Control System) are compatible with this system. DO NOT USE SYSTEM 3

OR GRAVERMEISTER HANDPIECES. Please contact GRS or an authorized GRS

dealer for a complete list of compatible handpieces.

 A graver or similar tool

A properly sharpened graver or similar tool is required to cut through the surface of

metal and other materials; use with care. The dust created while sharpening some

tool materials may present a health risk. Please contact GRS or an authorized GRS

dealer for a list of available gravers and tools.

READ THIS MANUAL ENTIRELY

BEFORE CONNECTING TO POWER.

Damage not covered by the warranty may result from not

following the instructions and maintenance in this manual.

REQUIRED EQUIPMENT & IMPORTANT NOTES

 Clean, dry, oil-free air from an air compressor

Oil-free compressors are ALWAYS RECOMMENDED. When using an oil-lubricated

JVTWYLZZVYPUZ[HSSHUVPSYLTV]HSÄS[LYJVHSLZJPUN[`WL¶.9: VY

equivalent) in the air supply line to this engraving system. Damage due to oil or

water contamination IS NOT COVERED BY WARRANTY. Even slight amounts of

oil can damage internal parts and cause erratic handpiece operation. The supplied

ÄUHSÄS[LYPZUV[JHWHISLVMYLTV]PUNSHYNLHTV\U[ZVM^H[LYVPSVYJVU[HTPUHU[Z

See Setup & Connections MVYTV\U[PUN[OLZ\WWSPLKHPYÄS[LY[VLUNYH]PUNZ`Z[LT

If compressed air supply has excessive water, oil, or contaminants, an additional

ÄS[LY^H[LY[YHWHUKVPSYLTV]HSÄS[LYJVHSLZJPUN[`WLT\Z[ILPUZ[HSSLKHOLHKVM

the engraving system.

GraverMax™ G8 requires a compressed air supply with minimum pressure 45 psi

(3 bar) and maximum pressure 120 psi (8 bar). The compressed air supply must

OH]LHTPUPT\TÅV^JHWHJP[`VM*-4BM[öTPUDVY374B3TPUD;VLUZ\YLH

stable compressed air supply, the user should consider an additional air regulator

to adjust the air pressure to 45-60 psi (3-4 bar) before it enters the GraverMax™

G8.

 A sturdy surface with adequate lighting

Make use of a heavy workbench or suitable solid furniture to support this

equipment, workpiece, and any additional equipment and supplies. Adequate

lighting allows clear sight, and may help prevent accidents and reduce fatigue.

Placement of this engraving system on the bench is solely user preference and

may be determined by left or right hand use during operation.

 Workholding device or material

For best results, using a workholding device or material is highly recommended.

Properly secure the workpiece to ensure user safety and to guard the piece from

damage while working. GRS manufactures several sizes and types of workholding

devices, such as the MagnaBlock, Positioning Vise, MicroBlock vise, Thermo-Loc

material, and the BenchMate™.

REQUIRED EQUIPMENT & IMPORTANT NOTES (continued)

DO NOT OPERATE ENGRAVING SYSTEM

WITHOUT AN ACTIVE AIR SUPPLY CONNECTED.

The air supply lubricates the rotary valve as the air passes through the

system. No additional lubrication is required.

C D

N O P

฀฀฀฀฀Back View

Front View

INTRODUCTION

The GraverMax™ G8 is an engraving system engineered and manufactured under the

GRS Tools line of products by Glendo Corporation in the United States of America. This

system is designed for assistance in creating unique works in metal, stone, wood, ivory,

and many other materials.

UNPACKING THE UNIT

IMPORTANT SHIPPING NOTE

When unpacking a new GraverMax™ G8, notice the screw protruding from the

bottom of the machine (FIG. 1.S). This screw is holding the motor mount assembly to

WYV[LJ[P[MYVTKHTHNLK\YPUNZOPWWPUN9LTV]LZJYL^ILMVYLVWLYH[PVU<ZLH

^YLUJOZVJRL[VYHUHKQ\Z[HISLLUK^YLUJO[VYLTV]LZJYL^HUK^HZOLY[OLUZ[VYL

both by inserting into the rubber grommet located on the back (FIG. 1.P), as shown in

the illustration.

For any shipping or transport of this unit, the screw and

washer MUST BE REPLACED at the bottom of the unit

to prevent damage to the motor mount assembly while in

transit.

NEVER OPERATE WHILE ON SIDE. Always

use the system in a vertical position (FIG. 1).

GraverMax G8 ฀฀

A. Primary air pressure gauge

B. Bias control knob

C. Primary air pressure control knob

+ 7V^LYVUVMMI\[[VU

E. Handpiece selector knob (for H)

F. Strokes Per Minute (SPM) dial

. (\_PSPHY`HPYVWLUJSVZLRUVI

H. Standard Handpiece push-to-connect fittings

I. Auxiliary Handpiece push-to-connect fitting

J. Air supply input push-to-connect fitting

K. Air filter

L. Air filter bowl drain knob

M. Air filter output push-to-connect fitting

N. Air filter input push-to-connect fitting

O. Foot Throttle push-to-connect fitting

P. Rubber grommet for stabilizer screw and

washer storage—See UNPACKING THE UNIT

Q. 24-volt power receptacle

R. Reservoir drain plug

(drain located in bottom of base)

S. Motor mount assembly stabilizer screw

C.1

฀฀฀฀E

C.2

1. Remove top screw from hole.

2. Place screw through top hole

on air ﬁlter bracket. Tighten

screw. Lower screw keeps

ﬁlter from swinging freely; do

not tighten or remove.

3. Power off system and air

supply. Connect supplied

short black hose (#044-229)

to straight ﬁtting on ﬁlter.

Connect other end to “Air

Input” ﬁtting.

To mount elsewhere, use

supplied longer black hose

(#044-069) — see page 18.

4. Connect hose from air supply

to ﬁlter ﬁtting marked “N×”.

฀฀฀฀฀฀฀1

Air Filter

Knob

Drain water from ﬁlter

daily. Turn knob clockwise

(from top view) to open.

Drain. Turn knob counter-

clockwise to close valve.

Turn Clockwise

NOTE: If air supply

hose is larger than

TT6+

either replace the

push-to-connect

Ä[[PUN^P[O[OL

included barbed

Ä[[PUNHUKH[[HJO[OL

air supply hose or

purchase a reducer

to decrease the OD

[VTT

A. Standard Handpiece ﬁttings

B. Auxiliary Handpiece ﬁtting

C. Air ﬁlter ﬁttings

D. Foot Throttle ﬁtting

E. 24-V power converter receptacle

F. 24-V power converter (#022-987)

MOUNT & CONNECT AIR FILTER

4V\U[HPYÄS[LYPUHSVJH[PVU^OLYL[OLHPY

ÄS[LYTH`ILKYHPULKKHPS`ZLL-0.(

Refer to FIG. 2 for instructions on

TV\U[PUN[OLHPYÄS[LY[VZPKLVMZ`Z[LT

Power off engraving system and air

supply. Insert appropriate hose (see

-0.PU[V[OLÄ[[PUN\U[PS[OLOVZL

stops and is secure. Power on engraving

system and air supply to check for leaks

and improper connections; air should

UV[LZJHWL[OYV\NOHU`OVZLVYÄ[[PUN

If air leaks, power off system and air

supply. Locate leaks and correct any

improper connections. To disconnect

MYVTHW\ZO[VJVUULJ[Ä[[PUNWYLZZPU

on the orange ring while gently pulling

out the hose.

CONNECT FOOT THROTTLE

7SHJLMVV[[OYV[[SLVU[OLÅVVYPUH

convenient position. Extend throttle

hose to back of system (FIG. 3.D) to

PUZLY[PU[VÄ[[PUNTHYRLK¸;/96;;3,

CONNECTION”. The hose should not

be pinched or kinked. NOTE: The foot

throttle varies handpiece power by

JVU[YVSSPUN[OLHTV\U[VMHPY[OH[ÅV^Z

from the handpiece. While the throttle

is depressed, it is normal for air to be

released. The user may hear the air

being released at times during operation.

CONNECT HANDPIECE(S)

Two handpieces may be connected;

only one handpiece can be in operation

at any time. Each Standard Handpiece

\ZLZHZPUNSLW\ZO[VJVUULJ[Ä[[PUN

(FIG. 3.A).

Connect desired handpiece(s)

accordingly. The handpiece selector

RUVIHIV]L[OLÄ[[PUNZHSSV^Z\ZL

of either handpiece 1 or handpiece

2 (FIG. 1.E). NOTE: The handpiece

selector knob line should point to the

ZLSLJ[LKÄ[[PUN

USING AN AIR-DRIVEN ROTARY

HANDPIECE

;OLH\_PSPHY`W\ZO[VJVUULJ[Ä[[PUN

-0.)PZHZ[YHPNO[ÅV^HPYWVY[[OH[

is limited to 40 psi (2.7 bar) maximum.

;OPZPZ[OLÄ[[PUNMVYHYV[HY`OHUKWPLJL

or other pneumatic tool. The knob is a

[^PZ[VWLU[^PZ[JSVZL]HS]LVU[OLMYVU[

of system (FIG. 1.G).

DO NOT EXCEED 35 psi (2.4 bar)

when using the GRS Ultra 850

Rotary Handpiece.

CONNECT ELECTRICAL POWER

DO NOT OPERATE

ENGRAVING SYSTEM

WITHOUT AN ACTIVE AIR SUPPLY

CONNECTED. Insert the converter cord

into receptacle on engraving system

(FIG. 3.E and F). Connect the electrical

power cord into the 24-volt power

converter. Connect the 3-prong power

cord into a properly grounded power

outlet, using adapters as needed.

See pages 2-3 for details.

SETUP & CONNECTIONS

OPERATION

STROKES PER MINUTE (SPM)

Stroke speed is a matter of personal

preference and experience. The SPM dial

(FIG. 4.C) settings are approximate and

YHUNLMYVT¶:74

Lower speeds are used for stippling,

matting, and similar techniques.

Mid-range speeds are used for

maximum-power tasks. Higher speeds

HYL\ZLKMVYÄULJ\[ZHUKÄUPZOLZ

Experiment with the settings to better

understand how the SPM relates to

technique.

FINE ADJUSTMENTS FOR

HANDPIECE OPERATION

PROPERLY ADJUSTING THE

ENGRAVING SYSTEM IS THE SINGLE

MOST IMPORTANT OPERATION TO

LEARN. Each handpiece has a normal

SPM range. Operating outside this range

can produce erratic results.

SPECIAL NOTE: When powered on,

the system pushes a small amount of

air through the electrically-controlled

air solenoid valve. When powered off,

the system seals the valve, making a

“pop” and “hiss” sound. This allows the

system to be powered off while the air

compressor remains on—without loss of

air in the compressor tank.

 Power on the air compressor

HUKHSSV^[HUR[VÄSSWait for the

compressor to cycle off.

 Power on the GraverMax™ G8. Turn

the bias control knob clockwise

until closed. Turn the handpiece

selector knob to choose connected

handpiece.

 Turn the SPM dial (FIG. 4.C) to

2300. Turn the primary air pressure

control knob (FIG. 4.B) clockwise

until the air pressure gauge displays

5 psi (0.4 bar).

 Hold the selected handpiece

vertically near either ear as shown

in FIG. 5.

 WITHOUT operating the throttle,

slowly increase the air pressure until

the handpiece begins to buzz. The

handpiece will vibrate, then knock,

as the pressure increases. Stop

adding air pressure immediately

after the knocking stops. This is the

perfect air pressure operating range

for the selected handpiece model.

See chart on page 9 for an alternative

adjustment method.

A B

฀฀฀฀฀A. Bias control knob

B. Primary air pressure control knob

C. Strokes Per Minute (SPM) dial

Make sure the bias control knob is

closed before adjusting the machine.

FIG. 5

Indice

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