SPE DFG700-1 Operating Manual

DFG700-1

Diamond Floor Grinder

Operating Manual

This manual is provided to persons purchasing an

SPE machine and may not be reproduced in part or full

without written permission of

SPE International Ltd.

This manual provides the basic information required

and is only to be used as a guideline.

The SPE machines are manufactured and covered by

SPE design registrations granted and pending.

SPE International Ltd reserves the right to alter the

equipment design and specification as required

without notice.

The SPE product range is subject to amendment and

improvement as a result of on going research

Honeyholes Lane, Dunholme, Lincoln LN2 3SU, England

Tel: [phone] Fax: [phone]

Email: [e-mail]

DFG700 - 1

Operating Manual

DFG700 Triple Head

Diamond Floor Grinder

OPERATING MANUAL

This manual covers to the best of our knowledge the operation and maintenance of the

DFG 700 - 1 diamond floor grinder. Before operation of the equipment the manual should be

read and understood by the operator. The safety regulations must be followed at all times.
Service of electrical components should be carried out by authorised personnel.

WARNING

Failure to follow these instructions may result in serious personal injury or death. SPE disclaims
all responsibility for damage to persons or objects arising as a consequence of incorrect
handling of the machine and failure to inspect the machine for damage or other faults that may
influence the operation prior to starting work.

DFG700 - 1

Operating Manual

Page No

1 Starting Work

2 Fitting Grinding Plates

3 Maintenance

4 Safety

5 - 10 Accessories

11 Spare Parts Breakdown

12 Head Drive Components

13 Grinding Head

14 Utility Components

15 Drive Components

16 Frame Components

17 Wiring Diagram

18 Electrical Components

19 Specifications

20 Warranty

21 Declaration of Conformity

22 Conditions of Sale

INDEX

Metal Tools
Resin Tools
Diamond Plates
Wet Grinding/Polishing

DFG700 - 1

Operating Manual

1

STARTING WORK

1. BEFORE STARTING WORK ENSURE THAT THE GRINDING HEADS HAVE BEEN
FITTED, SEE PAGE 2

2. Ensure the power supply is correct.DFG 700-1 - This should be a 380/415v 32 amp
supply from the mains or generated with a minimum of 20 kva on 50 cycles. The plug on the
DFG700 machine is a 380/415v 32 amp 5 pin red plug.

3. Connect a vacuum hose or a water supply to control the dust. WARNING – DO NOT
ALLOW WATER TO MAKE CONTACT WITH ANY ELECTRICAL COMPONENTS.

4. Select the number of pivotal weights required for the process and position forward over
the grinding head, ensuring the locking pins are secured.

5. After connecting the machine to the power supply turn the red isolator switch to the ON
position. The red light will illuminate on the electric panel. Note: the DFG700 is fitted with an
automatic phase correction system. This ensures the operator does not need to worry about
the power supply being phased to suit the machine.

6. Turn the speed control knob on top of the electrical panel to between 1-2 speed setting.

7. Press the green button on top of the electrical panel. The green light will illuminate and
the inverter is now powered up.

8. Turn on the vacuum or water supply.

9. Pull the dead man handle in, on the left handle bar, and press the green button on the
right handle bar. The machine will now start to grind the floor.

10. To increase the grinding speed, turn the speed control knob on top of the electrical
panel to the next level. With experience the operator will be able to feel the correct speed
setting for the grinding process.

11. To stop the machine, release the dead man handle on the left handle bar.

Please note that if the isolator switch or red stop button is turned off, then
immediately back on again, the inverter will not start with the green button on top of
the panel for 3 minutes.

DFG700 - 1

Operating Manual

2

FITTING GRINDING PLATES

1. Disconnect from the power supply.

2. Tip the DFG700 backwards on to its support bars. The machine must be secured and
supported.

METAL GRINDING TOOLS

1. Fit the required metal tools to the 6451 drive plate and ensure M6 allen screws are
securely tightened.

2. Place the drive plate onto the DFG700 machine and turn anti-clockwise into the locked
position.

3. Fit the other two drive plates as above.

4. Lower the machine back onto the floor surface.

RESIN GRINDING TOOLS

1. Fit the required resin tool to the 6450. They fit on with a velcro system.

2. Place the drive plate onto the DFG700 machine and turn anti-clockwise into the locked
position.

3. Fit the other two drive plates as above.

4. Lower the machine back onto the floor surface

It is possible to use the conventional DFG bolt on diamond plates with the DFG700. To fit
this type of plate the 3no standard coupling plate part number 7337B, bolted to the flexible
coupling must be removed and replaced with 3no 5064A adaptor plates.

1. Fit the diamond plate to the adaptor plate (5064A).

2. Ensure the grinding plate is seated to the adaptor plate correctly prior to inserting and
tightening the 4no counter sunk screws diagonally to a maximum torque of 75NM.

3. Fit the other two grinding plates as above.

4. Lower the machine back onto the floor surface.

The DFG700 accessories can be used wet or dry however should water be required fill water
tank to required level. Open the tap beneath the tank and water will be fed on to the grinding
heads.

NOTE – ALWAYS USE THE SAME TYPE AND BOND OF TOOL ON EACH OF THE THREE
HEADS. EQUALLY WORN TOOLS MUST BE FITTED AS A SET.

TO ENSURE THE CORRECT TOOL IS BEING USED CHECK WEAR RATES AFTER QUARTER
OF AN HOUR AND AGAIN AT HALF HOURLY INTERVALS, THIS WILL GIVE AN INDICATION OF

TOTAL WEAR RATES AND COST PER M

DIAMOND GRINDING PLATES

WET GRINDING/POLISHING

DFG700 - 1

Operating Manual

3

MAINTENANCE

AFTER USE:

 Clean the machine to remove all build up of dust and surface residue. If using a hose pipe or

pressure washer take care that water is not directed onto electrical components and switches.
(Note: Motors and switches are not waterproof)

Clean the filter at the bottom of the electric panel. Remove and blow out any dust. Replace
with a new filter if damaged. See Fig 1

 The drive belts will give a long and trouble free operating life if basic procedures are followed.

To inspect remove the belt guard. The drive belts are tensioned by sliding the tension pulley
along the adjusting slot allowing 10mm belt deflection. See Fig 2. It is important that the drive
belts are not over tensioned. Serious damage could be caused to the drive shaft, drive shaft
bearings and drive motor if the belts are excessively tight.

 Periodically check the oil level in the drive gearbox (part no 7309) either through the sight level

gauge or level plug depending on the model. See Fig 3. If oil comes out the inspection hole
when level plug is removed the gearbox contains sufficient oil. If oil level is low top up to just
above the main gear by removing the gearbox oil filler plug. See Fig 4. Access to the oil filler
plug is gained by removing the drive motor and motor mount plate. If any oil is required, use an
‘SY320’ grade gear oil.

Fig 1 - Electric Fig 2 - Belt Tension Fig 3 - Oil Level Plug Fig 4 – Gearbox Oil
Panel Filter Pulley or Level Gauge site Filler Plug

The planetary gear case is sealed and should not require any maintenance. The internal gears
are lubricated with lithium EPO grease.

 All components should be checked daily for tightness and the drive belts for tension weekly.

 The flexible drive couplings that support the grinding heads should be checked on a weekly

basis, the couplings should be firm without excessive movement.

 Any excess vibration due to uneven plate wear should result in the grinding plates being

changed to eliminate damage to couplings and bearing assembly support units.

DFG700 - 1

Operating Manual

4

SAFETY

Only trained operatives should be allowed to work the DFG700 range of floor grinders.

Note: It is possible that the noise level produced by the Diamond Floor Grinder could exceed
90dbA. Appropriate PPE must be worn and the equipment must be used in line with
guidelines laid down by the Health & Safety Executive.

Always ensure that all power leads and hoses are disconnected before attempting to service
the machine. Never tip the machine backwards until the grinding plates have stopped
rotating and the machine has been isolated at the main supply.

Noise and vibration will occur at various levels dependent on the grinding attachments and work
being completed. It is recommended that tests are taken on site to provide the operator with
accurate information on using the equipment within the guidelines laid down by the Health &
Safety Executive.

NOTE:

1. NEVER OPERATE THE DFG700 FLOOR GRINDER WITHOUT THE BELT GUARDS FITTED

2. NEVER OPERATE THE DFG700 FLOOR GRINDER OUTDOORS IN WET CONDITIONS AS
THE ELECTRICAL COMPONENTS ARE NOT WATERPROOF

3. NEVER OPERATE THE DFG700 WITH THE HEADS RAISED FROM THE FLOOR

DFG700 - 1

Operating Manual

Part No

Description

Application

6450

Resin Tool Drive Plate

Quick release drive plate with Velcro for

the fitment of resin tools.

Can be used wet or dry.

6460

Combination

Resin / Metal Tool

80 Grit Orange

Mixed bond ensures a very fine scratch

profile for use after metal bond or

directly onto power floated concrete

leaves perfect surface for thin film

coatings or polishing with a minimum

number of stages.

Can be used wet or dry.

6461

Resin Tool

100 Grit Black

For the first stage of resin polishing

leaves a matt finish.

Can be used wet or dry.

6462

Resin Tool

200 Grit Blue

For the second stage of resin polishing

leaves a closed matt finish.

Can be used wet or dry.

6463

Resin Tool

400 Grit Red

For the third stage of resin polishing

leaves a honed silk finish.

Can be used wet or dry

6464

Resin Tool

800 Grit White

For the forth stage of resin polishing

leaves a light reflective finish suitable for

most industrial and commercial

applications.

Can be used wet or dry

5

DFG700 - 1

Operating Manual

Part No

Description

Application

6465

Resin Tool

1500 Grit Yellow

For the final stage of resin polishing

leaves a clear reflective shine ideal for

decorative surfaces.

Can be used wet or dry.

6451

Metal Tool Drive Plate

Quick release drive plate for the bolt on

fitment of metal tools.

Can be used wet or dry.

6470

Metal Tool

16 Grit Hard Bond

For initial smoothing of rough surfaces,

coating and adhesive removal from soft

concrete.

Can be used wet or dry.

6471

Metal Tool

120 Grit Hard Bond

First Stage Tool for grinding / polishing

soft concrete.

Can be used wet or dry.

6472

Metal Tool

80 Grit Hard Bond

Second Stage Tool for grinding /

polishing soft concrete.

Can be used wet or dry.

6473

Metal Tool

120 Grit Hard Bond

Third Stage Tool for grinding / polishing

soft concrete.

Can be used wet or dry.

6

DFG700 - 1

Operating Manual

Part No

Description

Application

6474

Metal Tool

16 Grit Medium Bond

For initial smoothing of rough surfaces,

coating and adhesive removal.

Can be used wet or dry.

6475

Metal Tool

30 Grit Medium Bond

First Stage Tool for grinding /

polishing concrete and

seamless terrazzo.

Can be used wet or dry.

6476

Metal Tool

80 Grit Medium Bond

Second Stage Tool for grinding /

polishing concrete and

seamless terrazzo.

Can be used wet or dry.

6477

Metal Tool

120 Grit Medium Bond

Third Stage Tool for grinding /

polishing concrete and

seamless terrazzo.

Can be used wet or dry.

6478

Metal Tool

16 Grit Soft Bond

For initial smoothing of hard rough

surfaces, coating and adhesive

removal from hard dense concrete.

Can be used wet or dry.

6479

Metal Tool

30 Grit Soft Bond

First Stage Tool for grinding /

polishing hard dense concrete.

Can be used wet or dry.

7

DFG700 - 1

Operating Manual

Part No

Description

Application

6480

Metal Tool

80 Grit Soft Bond

Second Stage Tool for grinding /

polishing hard dense concrete.

Can be used wet or dry.

6481

Metal Tool

120 Grit Soft Bond

Third Stage Tool for grinding /

polishing hard dense concrete.

Can be used wet or dry.

6486

Green PCD Tool

1 Segment Anti-clockwise

For the rapid removal of adhesive,

coatings and failed latex

from a hard substrate.

6488

Green PCD Tool

2 Segment Anti-clockwise

For the rapid removal of adhesive,

coatings and failed latex

from a hard substrate.

6498

Blue PCD Tool

1 Segment Clockwise

For the rapid removal of adhesive,

coatings and failed latex

from a hard substrate.

6499

Blue PCD Tool

2 Segment Clockwise

For the rapid removal of adhesive,

coatings and failed latex

from a hard substrate.

8

DFG700 - 1

Operating Manual

Part No

Description

Application

5064A

DFG700 250mm

Adapter Plate

Allows conventional 250mm segmented

diamond grinding plates to be fitted.

6401

10 Segment Blue, 250mm

Diamond Plate

10 Segments, 10mm segment depth.

Economical grinding of concrete

and adhesive.

Can be used wet or dry.

6402

10 Segment Red, 250mm

Diamond Plate

10 Segments, 10mm segment depth.

Removal of coatings and S/L.

Coarse diamond grit.

Can be used wet or dry.

6403

16 Segment Blue, 250mm

Diamond Plate

16 Segments, 10m segment depth.

Grinding of concrete in preparation

for following on coatings.

Excellent cost per square metre.

Can be used wet or dry.

6403A

16 Segment Black, 250mm

Diamond Plate

16 Segments, 10mm segment depth.

Hard bond for softer surfaces.

Grinding of concrete in preparation

for following on coatings.

Excellent cost per square metre.

Can be used wet or dry.

6403B

16 Segment Grey, 250mm

Diamond Plate

16 Segments, 10mm segment depth.

Soft bond for hard surfaces.

Grinding of concrete in preparation

for following on coatings.

Excellent cost per square metre.

Can be used wet or dry.

9

DFG700 - 1

Operating Manual

Part No

Description

Application

6403C

16 Segment Purple, 250mm

Diamond Plate

16 Segments, 10mm segment depth.

Soft bond for hard surfaces.

Second stage grinding of terrazzo

and decorative concrete.

Leaves a smooth flat finish.

6403Y

16 Segment Yellow, 250mm

Diamond Plate

16 Segments, 10mm segment depth.

Economical grinding of concrete in

preparation for following on coatings.

Excellent cost per square metre.

Can be used wet or dry

6404

20 Segment Blue, 250mm

Premium Diamond Plate

20 Segments, 10mm segment depth.

Premium plate for concrete grinding,

paint removal, 1st stage grinding of

resin based terrazzo.

Can be used wet or dry.

6405

16 Segment Button Head,

250mm Premium

Diamond Plate

For the removal of thicker adhesive,

on sand / cement screed whether

open or closed. Will cope with large

volume areas in a cost effective

manner. To be used with softer

elastomeric and thin film coatings

10

DFG700 - 1

Operating Manual

11

DFG700 - 1

Operating Manual

QTY

DESCRIPTION

SPE PART NO.

1

Panel & Back Plate

SP83318

1

Frequency Inverter

7401

1

Mains Filter

7402

1

Panel Fan

7403

1

Panel Fan Filter

7404

1

Panel Fan Grille

7405

1

Panel Fan Lead

7406

1

Panel Fan Transformer

7407

1

Contactor (400v only)

SPLC1D25V7

2

Contactor (400v only)

SPLC1D09V7

1

Timer

SPLADR4

1

Limit Switch

SPZCKE05

1

Micro Switch-Body

SPZCKJ1H29

1

Micro Switch-Roller

SPZCKY11

1

Isolator 40 amp

SPVCCF2

1

Stop Button

SPZB4BS44

1

Start Button

SPZB4BA3

1

Start Switch

SPZB4BZ101

1

Stop Switch

SPZB4BZ102

1

Lens

SPZB4BV04

1

Lens

SPZB4BV03

2

Panel Lamp (400v only)

SPZB4BV5

1

Trip-3 Pole 25 amp

SP60HD325

1

Trip-2 Pole 2 amp

SP60HD202

1

Hour Run Meter

SPH7ET-N

1

Speed Con Knob Kit

11124

2

Gland

SPCG/LNM20

1

Gland

SPCG/LNM25

1

Bush Lock Nut

SP608-828

1

Compression Gland

SP542-188

1

Bush Lock Nut

SP608-828

2

Brass Bush 20mm Short

SP608-222

2

Bush Lock Nut

SP608-812

1

415v 32 amp 5 pin Surf Plug

SP630

1

Return Spring

7332

1

Cable Guide

7333

1

Contactor (440v USA only)

SPLC1D25R7

1

Contactor (440v USA only)

SPLC1D09R7

2

Panel Lamp (440v USA only)

SPZB4BV8

18

ELECTRIC PANEL COMPONENTS

DFG700 - 1

Operating Manual

Type

DFG 700 Electric

Part number

DFG700-1

Power output

11 kw

Voltage

380/415

Cycles

50

Head speed r.p.m.

180~400 variable

Engine/motor speed r.p.m.

2800

Machine dimensions (mm)

Length
Width
Height
Weight (kg)

1570
680
1090
292

19

SPECIFICATION SHEET

DFG700 - 1

Operating Manual

Warranty start date:

As despatch date

Model:

DFG 700-1

Serial no:

Customer name:

Customer Address:

Manufacturer:

SPE International Ltd

Honeyholes Lane

Dunholme

Lincoln

LN2 3SU

England

telephone:

[phone]

fax:

[phone]

Email:

[e-mail]

Web site:

www.spe-int.com

Distributor:

20

WARRANTY

The standard warranty period of this equipment is 12 months from the despatch date in

accordance with the company Conditions of Sale (copy attached).

DFG700 - 1

Operating Manual

21

DECLARATION OF CONFORMITY

WE

SPE INTERNATIONAL LTD

OF
Honeyholes Lane
Dunholme
Lincoln
LN2 3SU

DECLARE that under our sole responsibility for the supply/manufacture of the product
(Description/name) DFG 700 Floor Grinder
(Model/type) DFG 700 - 1

to which this declaration relates is in conformity with the following standards and other normative
documents following the provisions of Directive 2006/42/EC.

Brian Jacklin – Technical Manager

....................................................

SPE INTERNATIONAL LTD

DFG700 - 1

Operating Manual

The quotation overleaf and any order placed following such quotation are subject to the following conditions of sale in which SPE

CONDITIONS OF SALE

22

International Limited is referred to as the “Company”.

1. Validity of quotation

No order received from a customer by the Company shall constitute a contract until accepted in writing by the Company.

2. Prices

Prices quoted by the Company are firm for 30 days only or until previously withdrawn. Unless otherwise stated all prices are exclusive
of any applicable Value Added Tax for which the customer shall be additionally liable to the Company.

3. Delivery

Delivery periods and dates are given in good faith but are not the subject of any warranty or condition and time shall not be of the
essence of the contract in these respects. No liability will attach to the Company if delivery periods or dates are not met for any
reason whatsoever.

4. Payment

Save as may otherwise be agreed in writing the customer shall pay the price in full on or before the estimated delivery date
whereupon the Company shall raise a receipted invoice. Each invoice includes an Overdue Account Levy of 5% of the total inv oice
value inclusive of VAT. Subject to payment in full being made on or before the due date a sum equal to the Overdue Account Levy
shall be credited to the customers account with the Company. Until such time as payment in full has been made the Company shall
be under no obligation to allow or effect of any goods to the customer.

5. Warranty

The Company warrants that all goods supplied by it will correspond to their specifications and will be free from defects in m aterials or
workmanship for a period of 12 months from the date of delivery. The Company’s obligation in the event of a b reach of this warranty
is limited to the repair or replacement of any defective goods which shall be returned at the cost and expense of the custome r to the
Company. This warranty is given in lieu of all the other warranty or conditions expressed or implied (whether by statute or otherwise)
and is subject to the following conditions:-

5.1 Claims must be notified in writing to the Company within seven days from the date of delivery or (where the defect is not

apparent on reasonable inspection) as soon as practicable after discovery of the defect.

5.2 The Company shall be under no liability in respect of any defect in the goods arising from any drawing, design or specification

supplied by the customer.

5.3 The Company shall be under no liability if the defect or failure in the reasonable opinion of the Company arises from wilful

damage or misuse, negligence by the customer or any third party. Failure to follow the Company instructions, usage of non­recommended parts and materials, alteration or repair of the goods without the prior approval of the Company or non-recommended
maintenance.

5.4 The Company shall be under no liability if the price for the goods has not been paid by the due date for payment.

5.5 The above warranty does not extend to:-

5.5.1 Parts, materials or equipment not manufactured by the company in respect of which the customer shall be entitled only to the

benefit of any such warranty or guarantee as is given by the manufacturer to the Company.

5.5.2 Any component part of the goods or associated parts coming into contact with abrasive elements or dust within surface

Preparation equipment.

5.5.3 Fair wear and tear of moving parts within the goods.

5.6 Except in the case of death or personal injury caused by the Company negligence, the Company shall not be liable for any

consequential loss or damage (whether for loss of profit or otherwise) or other claims for consequential compensation.

6. Carriage

Packing, carriage and insurance charges in respect of delivery of the goods to the customer will be charged to the customer at cost to
the company.

7. Damage in Transit

The company does not accept any liability for loss or damage to the goods while in transit to the customer.

8. Risk

The risk in the goods shall pass to the customer on delivery to the customer or (if earlier) when possession of the goods is taken by a
carrier for delivery to the customer.

9. Force Majeure

The Company shall not be liable to the customer or be deemed to be in breach of any contract with the customer by reason of any
delay in performing or any failure to perform any obligation of the Company obligation in relation to the goods if the delay or failure
was due to force majeure or to any other cause beyond the Company’s reasonable control.

10. Reservation of Title

The goods sold under these conditions shall remain the absolute property of the Company and legal title in the goods shall remain
vested in the Company until payment in full of all amounts invoiced or due to the Company in respect of the goods. If the customer
shall enter into liquidation have a winding up order made against it or have a Liquidator, receiver, administrator or administrator
receiver shall be appointed over its assets, income or any part there of before the property in the goods has passed in accordance
with this condition the Company shall be entitled immediately after giving notice of its intention to repossess any goods to enter upon
the premises of the customer with such transport as may be necessary and to repossess any goods to which it has title under this
condition. No liquidator, receiver, administrator or administrative receiver of the customer shall have authority to sell goods to which
the Company has title without the prior written consent of the Company.

11 Insolvency of Customer

If the customer being a body corporate, shall pass a resolution or suffer an order of the Court to be made for winding – up, or if a
Receiver, Administrator or Administrative Receiver shall be appointed or, being an individual or partnership, shall suspend p ayment ,
propose or enter into any composition or arrangement with his or their creditors, or have a bankruptcy order made against him or
them, then the Company shall have the right, without prejudice to any other contract with the customer, not to proceed further with the
contract and shall be entitled to charge for work already carried out ( whether completed or not) and for goods and materials already
purchased for the customer such charge to be an immediate debt due from the customer.

12. Patent Rights, etc

The acceptance of a quotation includes the recognition by the customer of the Company under any patents, trademarks, registered
designs or other intellectual property rights relating to the goods and the customer undertakes that patent numbers, trademarks or
other trade markings on goods supplied shall not be obliterated, altered or defaced.

13. Applicable Law

These conditions shall be governed by and construed in accordance with English law and parties acknowledge and accept the
exclusive jurisdiction of the English Courts.