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For advice 

on the safety and suitability of this equipment

contact your local HSS Hire Shop.

There is a serious risk of personal injury if you do
not follow all instructions laid down in this guide.

The hirer has a responsibility to ensure that all
necessary risk assessments have been completed
prior to the use of this equipment.

This equipment should only be used by an operator
who has been deemed competent to do so by
his/her employer. 

This equipment should be used by an able bodied,
competent adult 

who has read and understood these

instructions. Anyone with either a temporary or
permanent disability, should seek expert advice before
using it.

Keep children, animals and bystanders away from
the work area. Cordon off a NO GO area using
cones and either barriers or tape, available for hire
from your local HSS Hire Shop.

Never use this equipment if you are ill,
feeling tired, or under the influence of

alcohol or drugs.

Safety goggles MUST be worn by everyone in

the work area.

This equipment generates potentially harmful

noise levels. 

To comply with health and safety at

work regulations, 

ear defenders must be worn 

by

everyone in the vicinity.

Some materials, when ground, contain
substances which, when inhaled, can be

harmful to health.  

A suitable mask must be worn

when using this equipment. Respiratory protective
equipment is available for hire, contact your local HSS
Hire Shop for details.

Wear practical, protective clothing, gloves and

footwear. 

Avoid loose garments and jewellery that

could catch in moving parts, tie back long hair.

This equipment is heavy

(80Kg without inserts

fitted),

never attempt to lift it on your own,

always get help.

Always switch OFF and unplug the machine before
making adjustments to it.

Having switched OFF, 

always wait for the grinding

head to come to rest.

Ensure the work area is well lit and ventilated,

if in

doubt, ask about lighting and ventilation equipment at
your local HSS Hire Shop. 

GENERAL SAFETY

Do not work near flammable gases or liquids,

petrol

or paint thinner fumes for example

. Keep combustible

materials at a safe distance -

at least 5m.

Make sure you know how to switch this machine
OFF before you switch it ON

in case you get into

difficulty.

Never lift or pull the equipment by its power
supply cable.

Make sure that anyone in the immediate work area
is warned of what you are doing. 

Check the condition of the equipment before use.

If it shows signs of damage or excessive wear, return it to
your local HSS Hire Shop.

COSHH information sheets are available from your local
HSS Hire Shop.

HSS Floor Grinders must be provided with a
suitable 110V 32AMP generated supply, 

or

powered from the mains via a suitable 110v transformer
(minimum 3Kva tool rating).

If the equipment fails, or if its power supply cable
or plug becomes damaged, return it.  

Never try to

repair it yourself.

Only use suitable three core earthed extension
leads to power this equipment.

Keep cables out of harm’s way,

and clear of the work

area

.  

Extension leads should be fully unwound and
loosely coiled, away from the equipment.

Never run

them through water, over sharp edges or where they
could trip someone.

This machine is designed to be used with water
and is perfectly safe to use provided you do not
allow water to contact the motor, switchgear,
cables, transformer or other electrical components.

To reduce the risk of electric shock, always
use a suitable RCD 

(Residual Current-Operated

Device) available from your local HSS Hire Shop. Or power
the equipment from a mains circuit with a built in RCD.

Ensure the floor grinder and power socket are
switched OFF before plugging into the power
supply.

Familiarise yourself with the machines ON/OFF
switch and its location

so that you can operate it

quickly in an emergency.

Fit the machine with the correct insert for the job.

There are two options, 

dyma-serts and strip-sert.

GETTING STARTED

ELECTRICAL SAFETY

Dyma-serts are concrete grinding inserts for wet/dry
grinding of epoxies, sealers, glues and concrete.

Strip-serts are carbide tipped inserts for stripping concrete
of paint, glue, rubber and tar.

Both are fitted

to the grinding head 

in the same way.

Note that the strip-serts cutting edge must face the
direction of rotation 

(see illustration).

The grinding head will require the fitting of 3 inserts. 

Do

not attempt to use the machine unless all 3 are
fitted

.

To fit the inserts, 

tilt the machine back 

to reveal the

underside of the grinding head. 

Take the first insert and hold it in the recess with
the insert positioned tightly against the outer and
rear wall

(see illustration). Next 

insert the wood

wedge between the insert and the inner wall

, then

secure in place with a few light hammer blows. 

Only use the wood wedges provided by HSS, anything
else may damage the inserts and the machine. Make sure
that you do not hit the insert as this may result in
irreparable damage. 

Repeat this with the remaining 2 inserts.

Check that the inserts are fitted correctly

and that

they are all in line (and in the case of the strip-serts, facing
the correct way). 

Set the machine back in the

upright position.

If you are using dyma-serts, turn them around after
each work session so that the current leading edge
becomes the trailing edge.  

This will allow the inserts

to wear evenly.

Move the wheels from the transport position to
the grinding position by tilting the machine
forward 

until the wheels are off the floor and

then

swinging the wheels back towards the rear of the
grinder.

ON/ OFF

Switch

ON

OFF

Water

Inlet

Dust

Extraction

Port

ON

OFF

Transport

Position

Grinding

Position

Grinding Block

Wedge

Grinding

Head

Strip-Sert

Dyma-Sert

Cutter

Retaining

Screw

Grinding Inserts

Electric Floor Grinder

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