GRIGGIO GF 21 User manual

SPARE PARTSINSTRUCTIONS
Via Ca’ Brion, 40 - 35011 Reschigliano (PD) ITALY
Tel. [phone] Fax [phone]
http://www.griggio.com E-Mail:[e-mail]
BORING MACHINE Mod. GF 21G
GF 27G
GF 35G
GRIGGIO S.p.A.
WOODWORKING MACHINERY
DESYS srl

MODEL
BORING MACHINES
GF21 spindles
GF27 spindles
GF35 spindles
MACHINE N°
YEAR OF MANUFACTURE
GRIGGIO S.p.A. WOODWORKING MACHINERY
Via Ca’ Brion, 40 - Reschigliano (PD) ITALY
Tel. 049. .9200920
Fax 049. .9201433
C.A.P. 35011
http://www.griggio.com
E-Mail:[e-mail]
GRIGGIO S.p.A.
WOODWORKING MACHINERY

WE WOULD LIKE TO THANK YOU FOR
HAVING CHOSEN ONE OF OUR PRODUCTS
This manual contains all information, advice and warnings that our technicians deemed
essential to operate the machine properly.
It also contains routine maintenance rules, so that your machine will always be kept in
perfect working order.
We advise you to read this manual entirely before operating the machine for the first
time.
1
GRIGGIO S.p.A.
WOODWORKING MACHINERY

INDICE
1. CONFORMITY CERTIFICATE......................................................................................... 4
2. SAFETY AND GENERAL SAFETY INFORMATION ........................................................ 4
2.1 USAGE AND MAINTENANCE ADVICE................................................................. 4
2.2 MACHINE IDENTIFICATION................................................................................. 4
3. OPERATIVE NOTES ....................................................................................................... 5
4. DESCRIPTION OF THE MACHINE ................................................................................. 5
4.1 APPLICABLE TOOLS............................................................................................ 5
4.2 MACHINE PARTS ................................................................................................. 6
5. SUPPLIED EQUIPMENT ................................................................................................. 6
6. SAFETY DEVICES .......................................................................................................... 7
7. INDIVIDUAL SAFETY DEVICES...................................................................................... 8
8. TECHNICAL SPECIFICATIONS ...................................................................................... 8
8.1 WEIGHT ................................................................................................................8
8.2 OVERALL SIZE.....................................................................................................8
8.3 MAX. SIZE OF PIECE TO BE BORED .................................................................. 8
8.4 ELECTRICAL CHARACTERISTICS....................................................................... 8
8.5 TABLE SIZE .......................................................................................................... 9
8.6 INTERAXIAL DISTANCE BETWEEN SPINDLES.................................................. 9
8.7 NUMBER OF SPINDLES....................................................................................... 9
8.8 INTERAXIAL DISTANCE BETWEEN FIRST & LAST SPINDLE ............................ 9
8.9 SPINDLE REVOLUTIONS..................................................................................... 9
8.10 MAX. BORING DEPTH.......................................................................................... 9
8.11 WORKING PRESSURE......................................................................................... 9
8.12 AIR CONSUMPTION............................................................................................. 9
9. AUTHORISED USAGE .................................................................................................... 9
9.1 MATERIALS .......................................................................................................... 9
9.2 IMPROPER USAGE .............................................................................................. 9
10. SHIPMENT .................................................................................................................... 10
11. MACHINE SIZE ............................................................................................................. 10
12. INSTALLATION ............................................................................................................. 11
13. WORKING AREA........................................................................................................... 11
14. ASSEMBLY AND PRELIMINARY STEPS TO OPERATE THE MACHINE
FOR THE FIRST TIME................................................................................................... 12
15. CONNECTING THE MACHINE TO EXTERNAL ENERGY SOURCES.......................... 12
15.1 CONNECTION TO POWER SUPPLY MAINS ..................................................... 12
15.2 PNEUMATIC CONNECTION............................................................................... 12
15.3 CONTROL PANEL .............................................................................................. 13
16. CHECKS AND ADJUSTMENTS .................................................................................... 14
16.1. DISCONNECTIONG PROCEDURE .................................................................... 14
16.2. PREVENTION CHECKS...................................................................................... 14
16.3 BORING DEPTH ................................................................................................. 14
16.4 HOW TO ADJUST HEAD PARALLELISM ........................................................... 15
16.5 HOW TO POSITION SPINDLEHEAD HORIZONTALLY AND VERTICALLY……..15
16.6 HOW TO USE REFERENCE STOPS FOR STANDARD 0°-90°WOODWORKING …16
16.7 HOW TO USE EXTENSION FENCE.................................................................... 16
GRIGGIO S.p.A.
WOODWORKING MACHINERY
2

16.8 HOW TO USE REFERENCE PIN TO BORE SERIES OF HOLES ON LARGE
PIECES (OPTIONAL)…………………………………………………………………...17
16.9 HOW TO USE TRIANGULAR FENCE FOR 45° BORING AND SPLINE
(OPTIONAL)………………………………………………………………...………18
16.10 WOODWORKING EXAMPLES…………………………………………………….,….19
17. HOW TO START THE MACHINE .................................................................................. 21
17.1 WORKING CYCLE.............................................................................................. 21
18. MAINTENANCE ............................................................................................................ 21
18.1 MACHINE CLEANING (DAILY) ........................................................................... 21
18.2 RAILS CLEANING (WEEKLY)............................................................................. 21
18.3 KINEMATICS CLEANING AND CHECKS (MONTHLY)...................................... 21
18.4 EXTRAORDINARY MAINTENANCE .................................................................. 21
19.COMMON FAILURES – CAUSES AND SOLUTIONS .................................................... 22
19.1DRILLS ARE NOT TURNING……………………………………………………………..22
19.2 ENGINE IS RUNNING BUT DRILLS ARE NOT TURNING ................................. 22
19.3 BORED HOLE IS NOT PRECISE ....................................................................... 22
20. FAILURES THAT MIGHT OCCUR DURING MACHINE WORKING CYCLE…………….23
20.1 DRILLS LEAVING SCORCH MARKS ................................................................. 23
20.2BORED PIECES ARE NOT SET AT A 90° ANGLE TO TABLE………………………23
20.3 HEAD CANNOT ROTATE PROPERLY............................................................... 23
20.4 HOLD DOWN CLAMPS CANNOT CLAMP WOOD PIECE ................................. 23
21 A. NOISE LEVEL ............................................................................................................ 23
21 B. DUST EMISSION....................................................................................................... 23
22. PNEUMATIC SCHEME .............................................................................................. 24
23 A. ELECTRICAL SCHEME FOR GF21, GF27 (WITH ONE ENGINE)............................. 24
23 B. ELECTRICAL SCHEME FOR GF 35 (WITH TWO ENGINES) ................................... 25
24. MACHINE IS PUT OUT OF COMMISSION ................................................................ 26
25. GUARANTEE CERTIFICATE ..................................................................................... 27
26. SPARE PARTS CATALOGUE…………………………………………………………...….29
3
GRIGGIO S.p.A.
WOODWORKING MACHINERY

2. SAFETY AND GENERAL SAFETY INFORMATION
2.1 USAGE AND MAINTENANCE ADVICE
In this manual we have considered all routine maintenance operations.
We advise you not to carry out any other working, repair or intervention than the ones envisaged in this
manual.
We suggest that you keep this manual with care and in a location where it can easily be found and con-
sulted by the operator.
2.2 MACHINE IDENTIFICATION
The machine can be identified by means of the information written on the plate located in the front of the
machine on the left-hand side. When spare parts are ordered or advice is required to operate the ma-
chine or to carry out maintenance operations, always indicate the machine’s model number written on
the plate, as well as voltage and nationality.
It is absolutely forbidden to remove the plate or to change the information written on it.
On the Boring machine described in this manual, the following plate has been attached:
1. CONFORMITY STATEMENT
Griggio S.p.A. declares that this Boring machine has been manufactured accurately, by using the best
techniques available to manufacture a quality product. We also declare that our boring machine com-
plies with EEC 89/392 Machines Guideline, as well as with the following standards:
EN 292/1
EN 292/2
EN 60240
EN 60240/1
EN 73/23 CE
IEC 408
The machine is hence commercialised with conformity mark:
GRIGGIO S.p.A.
Via Cà Brion,40 - 35011
Reschigliano (PD) ITALY
The President
GRIGGIO S.p.A.
WOODWORKING MACHINERY
4

4. DESCRIPTION OF THE MACHINE
Our Boring Machines have been manufactured to make a series of holes at a fixed 32-mm distance be-
tween centres on wooden pieces (with maximum precision).
The head has its fulcrum on the machine table and it can be tilted until a 90-degree angle. The pieces to
be bored are fed by the operator, who places them on the machine table. The operator will carry out the
required adjustments by pressing the control pedal before locking the pieces into place with the relevant
hold down clamps and starting boring operations.
The following parts make up the machine:
•A steel frame structure
•Spindlehead unit with transmission and drill spindles with quick-change seat (standard).
•Hold down clamps unit to clamp the piece to be cut in a vertical position.
•Pneumatic system for head positioning and head feed.
•Back stops so as to obtain the same vertical and horizontal boring distance
•Crank mechanism to adjust spindles height, equipped with mechanical counter and quick-depth de-
vice to adjust hole depth from 0 mm to 100 mm.
4.1 APPLICABLE TOOLS
Quick-change spindle drills with a 10mm-diameter shank L=20mm.
Drills up to 40mm-diametre outside the rack can be used; 100 mm maximum working length (attachment
is not taken into account).
REMOVING OR TAMPERING WITH SAFETY DEVICES MAY CAUSE SERIOUS ACCIDENTS. IT IS
FORBIDDEN TO REMOVE, EXCLUDE OR MODIFY SUCH DEVICES. PERIODICAL CHECKS
MUST BE CARRRIED OUT TO MAKE SURE THAT SAFETY DEVICES ARE ALWAYS IN GOOD
WORKING ORDER. ANY DEFECT OR POSSIBLE PROBLEM IS TO BE DEALT WITH IMMEDI-
ATELY.
3. OPERATIVE NOTES
1) To operate the machine safely and correctly, follow the indications contained in this manual care
fully and scrupulously.
2) The machine will have to be operated only by personnel who is both qualified and over 18. People
responsible for safety should make sure that the machine operator has read and fully understood all the
information contained in this manual.
3) Maintenance interventions must be carried out only by personnel who is both qualified and of age.
4) Personnel responsible for periodical and extraordinary servicing must have a good knowledge of
mechanics and electronics.
5) Keep away from any moving part in the machine.
Never touch the spindles and /or the drills when the machine is operational.
6) Never superimpose wood pieces to be worked. Always bore one piece at a time, after having ad-
justed the machine correctly.
WOODWORKING MACHINES CAN BE DANGEROUS
5
GRIGGIO S.p.A.
WOODWORKING MACHINERY

4.2 MACHINE PARTS
1) Electric power line light
2) Switch to make the engine operational
3) Emergency pushbutton
4) Machine clamping
5) Lever-operated valve for head overturning pis-
ton.
6) Piston adjustment and drills feed speed
7) 45°Block pin
8) Back stops
9) Tilting degree dial for spindlehead
10) Fast-positioning safety hold down clamps
11) Clamping handle for hold down clamps rail
12) Table limiters
13) Clamping handle for limiters rails
14) Limiters exclusion device
15) Electric control board
16) Rack rotation clamping handle
17) Control handle for drills height from table
18) Drills depth adjustment for piece to be bored
19) Reference pin to repeat sets of holes (optional)
20) Lubrication-filter-regulator air unit
21) Drills feed cylinder
22) Spindlehead
23) Engine
24) Pneumatic control pedal
25) Electrical main switch
5. SUPPLIED EQUIPMENT
The machine comes with the following equipment to adjust the machine itself:
- 45-degree head position clamp
- Protractor scale to position the boring head
- Quick-positioning safety hold down clamps
- 4 T.E. wrenches sizes 6/7, 10/11, 12/13, 16/17.
- 7 hexagon ring wrenches sizes 2.5-3-4-5-6-8-10
- 5 quick-change bushes for cylindrical-shank drills 10 mm in diameter
- 3000mm extension fence with millimetrical scale and 4 oscillating stops
The following equipment is available on request:
- 45° Triangle for frame construction
- Central spline for 90° frames
- An additional extension fence with millimetrical scale (3000 mm max)
- Additional oscillating stops for extension fence
- Reference pin for line boring (2 pins maximum)
- Additional quick-change bushes for cylindrical shank drills 10 mm in diameter
GRIGGIO S.p.A.
WOODWORKING MACHINERY
6