HSS Hire HTC 270 Troubleshooting guide

Floor Grinders &
Dust Extractor
Professional grinders for grinding,
striping and cleaning all types of
flooring.
Code 43432/34/35/36
Floor Grinders &
Dust Extractor
Operating & Safety Guide 320
Operating & Safety Guide 320
320/01
320/01
©HSS Hire Service Group Ltd 2012 No. 320/01
Group Office: 25 Willow Lane, Mitcham, Surrey CR4 4TS
Web Site: http://www.hss.com
…any comments?
If you have any suggestions to enable us to improve the
information within this guide please e-mail your comments or
write to the Safety Guide Manager at the address below
e-mail: [email protected]
... have you been trained
The law requires that personnel using this type of equipment in
the workplace must be competent and qualified to do so.
Training is available at HSS Training
0845 766 7799
Never push the equipment beyond its design limits. If it
will not do what you want with reasonable ease and speed,
assume you have the wrong equipment for the job. Contact
HSS Hire for advice.
Keep the equipment clean - you will find this less of a
chore if you clean it regularly, rather than wait until the end
of the hire period.
When not in use, store the equipment somewhere in a
heated, dry area. Otherwise they may be damaged by
condensation and cold.
EQUIPMENT CARE
FINISHING OFF
Switch off floor grinder by turning the switch to
“0” position and holding it for 1-2 seconds.
Switch off dust extractor. Remove the waste bag and
lower the machine down.
Clean both machines.
Neatly coil flexes ready for return to HSS Hire.
BASIC TECHNIQUES
Having prepared the grinder, wheel the machine to the
far corner of the floor, placing it as close to the corner as
possible.
Connect the machine to power supply. Make sure the
emergency button is reset. Turn the power switch to “I”
in order to start the grinder. Hold the knob in start
position for 1 - 2 seconds.
Do not hold the knob in “I” position for longer than is
needed to start the machine. Holding the switch in start
position “I” for longer will damage the machine.
During the operation push the machine forward over
the floor surface.
When work is done turn the power off by turning the
switch to “0” position and unplug from mains.
EMERGENCY STOP SWITCH
When the emergency stop switch is pressed, all
electrically-powered equipment of the machine is
switched off.
Do not use the emergency stop switch to stop the
machine, except in emergency.
As long as emergency button is pressed the machine
cannot be started. Reset by turning the switch 45o
clockwise so it pops out again. The machine then can be
restarted.
EDGE GRINDER
The edge grinder provides increased flexibility in the
use of the machine. With edge grinder it is possible to
grind edges and corners effectively from different
directions.
WORKING WITH DUST EXTRACTOR
Prepare the dust extractor by fitting a waste bag. Place
the dust extractor where you want to start the
vacuuming work. Connect the dust extractor to mains
supply. Start the dust extractor putting the switch into
the position “I”.
In order to keep the suction hose for the dust extractor
and the power cable out of the working area and/or path
of the machine the hose and the cable can be
VIBRATION
Grinding/polishing Floor preparation
HTC 270 2,43 m/s29,37 m/s2
HTC 270 with Edge 2,43 m/s29,37 m/s2
HTC 450 1,16 m/s22,35 m/s2
LIFTING AND TRANSPORTATION
Always transport the machines in upright position. The
grinder should also have the handle in upright position.
The dust extractor however, must be lowered. Make sure
they are anchored securely to surrounding to prevent
them from moving. The securing straps or other equipment
used for anchoring during transport must be tightened
over non-moving parts, e.g. the dust extractor's chassis.
The grinders may only be lifted using the lifting eye on
the chassis in accordance with the relevant instructions.
The lifting handles on the motor are intended for lifting
the grinding head, when it is separated from the
chassis, and then only for short, low lifts, e.g. into the
boot of a car. The lifting handles are not to be used for
lifting the complete machine.
When lifting the dust extractor, use
lifting straps that must be fastened in
the notches on the chassis. Only use
straps approved for lifting equipment.
Do not transport the dust extractor on
sloping surfaces, e.g. loading ramps,
without securing it properly, for
example with a winch. This is a safety
measure in case the dust extractor starts
to roll out of control. Also make sure
that people (including the operator) in
the vicinity are at a safe distance in
order to prevent personal injury, in
the event that the dust extractor
WARNING!
If the catches are not properly located in the lugs,
there is a risk that the dust cylinder package can
drop, with a consequential risk of crash injury
arranged.
By arranging the hose
and cable as shown you
avoid disruptive
stoppages caused by
having to reposition the
cable and hose.
LOWERING DUST EXTRACTOR
When the dust extractor is in the operation position and
you want ot lower it to transport or parking position, first of
all lift the dust cylinder with both hands
using the lift handles. To avoid the risk of
the suction system tipping, place foot on
the collection plate for the waste bag.
Lift the dust cylinder package up and out a
little, so the catches release. Then let the
dust cylinder package drop slightly and
fold in the dust cylinder package again, so
the catches fasten in the lower lug on the
chassis for transport position.
WARNING!
There is a risk of crush injuries while lowering to the
transport or parking position. Use the lifting handles
to avoid trapping your hands and fingers.
WARNING!
During grinding, the tools become very hot. Tip the
machine back and allow it to stand for a short while.
CAUTION!
Some parts of the machine can become very hot
during work. There is a risk of burning your hands.
WEAR PROTECTIVE GLOVES.
starts to roll out of control.
When the dust extractor is to be hoisted, it must be
securely anchored in the notches for secure lifting,
which are found on both of the chassis' long sides. To
prevent the dust extractor from tipping, make sure to
pull with equal force so the dust extractor doesn't twist
and end up on its side.
The swivelling wheel must be pointing forwards in the
direction of travel.

For advice on the safety and suitability of this equipment
contact HSS Hire.
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 a 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 HSS Hire.
Never use this equipment if you are ill, feeling
tired, or under the influence of alcohol or
drugs.
Wear practical, protective clothing, gloves and
footwear. Avoid loose garments and jewellery
that could catch in moving parts, tie back long hair.
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 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 HSS Hire
for details.
Ensure the work area is well lit and ventilated, if in doubt,
ask about lighting and ventilation equipment at HSS Hire.
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.
Do not use the tool in rain or snow and do not use it in
damp or wet areas or where there is a risk of fire or
explosion.
Also water entering a power tool will increase the risk of
electric shock.
Make sure you know how to switch the machines OFF
before you switch them on in case you get into difficulty.
Do not clean the machines using a high-pressure
washer. Otherwise moisture may penetrate electrical
elements and damage the machines’ drive system.
Do not rinse off the dust extractor, as moisture can
penetrate to the electrical parts and damage the motors as
well as causing an electrical shock.
Never use the dust extractor in connection with wet
grinding or to suck up moisture and water, since this can
cause blockages in the dust extractor's suction hose as well
as damage to the main filter, HEPA filter and motors.
Do not use the emergency stop switch to stop the
machine, except in emergencies.
GENERAL SAFETY
IDENTIFIER
ELECTRICAL SAFETY
Inlet, suction
hose connection
GETTING STARTED
The HSS Floor Grinders are designed to grind, strip and
clean all types of floors. The area of application for the
machine depends on the choice of tool.
The HSS Dust Extractor is best used together with HSS
Floor Grinders when dry grinding stone and concrete
floors. It is equipped with a main filter as well as a HEPA
filter. The dust sucked up is collected in a bag under the
dust extractor.
Never use the machines until you have fully read and
understood this User Guide and the machines have
been properly set up using the information it contains.
CONTROLS
In order to start the grinder
turn the I/O switch to “I”.
Hold the knob in “I” position
for 1-2 seconds. To switch
the grinder off just turn the
switch to “O” position.
The grinder is equiped with
emergency stop, that should only be used in emergency
The floor grinders and dust extractors require a 110v
32amp supply obtained from a generator or the mains
via a suitable transformer. Never connect these
equipments directly to the 230V mains electricity
supply.
If any of the equipment fails, or if its power supply cable
or plug becomes damaged, return it. Never try to repair it
yourself.
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.
Always remove the plug from the power socket before
undertaking any type of intervention on the HSS power
tools or if it is left unattended or within children or
people’s reach not quite conscious of their own actions.
Before removing the plug, switch off the machine.
Always ensure that the machine's connection cable is
hanging freely without any tensile loading. Otherwise,
the cable, coupling socket and plug may be damaged,
which can cause both physical damage and personal injury.
To reduce the risk of electric shock, always use a
suitable RCD (Residual Current-Operated Device)
available from HSS Hire.
Collection plate for
waste bag
Lifting handles,
adjustable height
Dust cylinder
including
main filter
Handle
Always when unplugging pull the plug, not the supply
cord.Ensure the machine and power socket are
switched OFF before plugging into the power supply.
Plug
Wheels
Control panel
Adjustable
handle
Connection for vacuum
Locking mechanism for
handle adjustment
Locking bolts/quick
release grinding head
Waste bag
Quick release coupling
motor cable
Connection for vacuum
Lifting eye for the
machine
Suction hose
Floating grinding cover
Lifting handles
for grinding
head
situations. Never use it to end the work.
Press the emergency stop button to cut the power to the
machine. Reset the emergency stop
switch by turning it 45oclockwise.
The power switch for dust extractor is
located on side cover of the motor
package.
PREPARE MACHINES FOR WORK
Grinder
Before using grinder make sure its
handle is in the position that will
suit your needs. Working height
can be adjusted to one of several
positions.
Upright position is used when
tipping the machine to ease
access to the underside
of the grinding head,
e.g. when changing tools.
Upright position
Working
positions
WARNING!
There is a risk that the machine could fall back and
cause personal injury
Always ensure that the machine’s handle is in upright
position when the machine is tipped to enable access
beneath the grinding head.
When the handle is adjusted to
desired position lock the handle.
Dust Extractor
The dust extractor can be placed in
two positions; operating position
and transport / parking position.
When the dust extractor is in use, it must be
in the operating position.
Prepare machine for
operating position by raising
the dust cylinder package
from the transport position
by lifting with the lifting
handles.
Lift until the catches fasten
firmly in the top lug on the
chassis for operating
position.
Make sure that both catches
are properly located in the
lugs.
Handle
locking bolts
WARNING!
If handled carelessly, the dust extractor can overturn
and cause both personal injury and damage to the
equipment.
Working
position
Control cabinet
Motor
HEPA filter holder
Outlet, ventilation hose
connection (ø 160 mm)
Handle filter
cleaning valve
Edge Roller
Suction hose
DUST EXTRACTOR FLOOR GRINDERS FLOOR GRINDER WITH EDGE