HireTech HTF-2 System manual

FLOOR SANDER MODEL HTF-2
OWNERS MANUAL & OPERATING INSTRUCTIONS
REF.180 PART # 031390
PRINTED IN THE UK
JULY 2003 © Hiretech
ABC
From Serial Number
00579 (220/240 Volt) & 00579 (110/120 Volt)

NORTH AMERICAN SAFETY INSTRUCTIONS
USE AND APPLICATION
WARNING: This floor sanding machine must be grounded.
This floor-sanding machine shall be grounded while in use to protect the operator from electric
shock. The machine is provided with a three-conductor cord and a moulded three-contact
grounding type attachment plug to fit the proper grounding type receptacle. The Green (or
Green and Yellow) conductor in the cord is the grounding wire. Never connect this wire to other
than the grounding pin of the attachment plug.
This floor-sanding machine is provided with an attachment plug as shown in sketch A. It is
intended for use on a nominal 120 volt circuit. If a properly grounded receptacle as shown in
sketch A is not available, an adaptor as shown in sketch 'C' should be installed as shown in sketch
B if the outlet box that houses the receptacle is grounded. Be sure to fasten the grounding tab with
a metal faceplate screw.
Floor sanding can result in an explosive mixture of fine dust and air. Use floor-sanding machine
only in a well-ventilated area free from any flame or match.
Moving Parts - to reduce the risk of injury, unplug the machine before replacing abrasive sheets
or carrying out any form of adjustment or servicing.
WARNING:
WARNING:
Risk of explosion.
Of potential injury.
This machine is intended for commercial use connected with the laying and maintaining of wooden floors and
decks.
These types of surfaces may be found both in commercial and household environments.
ATTACHMENT PLUG SKETCH ‘C’
METAL
SCREW
COVER OF GROUNDED
OUTLET BOX SKETCH ‘B’
ADAPTER
GROUNDING
MEANS
COVER OF GROUNDED
OUTLET BOX SKETCH ‘A’
GROUNDING PIN

CONTENTS
WARNING
MAINS CABLE WIRING - PLUG
SPARE PARTS
SPECIFICATION
SAFETY
ASSEMBLY & TRASNPORT
INSTALLING ABRASIVE
PREPARATION
OPERATION
FLOOR SANDING TECHNIQUE
FLOOR TYPES
i
i
i
1
1
2
2
2,3
3
Drum Floor Sander 4
Disc Floor Sander 4
Orbital Floor Sander 4
Hand Sanding 4
Sanding Plank & Strip Floors 4
Veneered, Laminated & Thinner Floors 4
Parquet & Block Floors 5
Sanding Between Coats of Finish 5
ABRASIVE PAPER GUIDE
Hiretech
Hiretech
FLOOR SANDING TECHNIQUE
SERVICE AND ROUTINE MAINTENANCE
FAULT FINDING
HTF-2 PARTS DRAWING
HTF-2 PARTS LIST
FLOOR SANDER ABRASIVES
HTF-2 CIRCUIT DIAGRAM
DECLARATION OF CONFORMITY
Abrasive Pad & Strips 6
Coated Abrasives 6
5
General 7
Visual Inspection 7
Dust Control 7
Lubrication 7
Care of Motor 7,8
Setting the Wheels 8
Electrical Testing 8,9
9
10,11
12,13
13
14
15
SERVICE & REPAIR 16
WARNING
MAINS CABLE WIRING - PLUG
For safe operation of this machine, read and understand all instructions. Look for the ‘warning/caution’ symbol.
This symbol means that if you do not follow the instructions injury can occur to the operator and
damage to the machine and floor may result.
Hiretech reserves the right to make changes or improvements to it's products without prior notice.
®
i
NORTH AMERICA
BLACK
WHITE
GREEN
BRASS
TERMINAL
SILVER
TERMINAL
EU
BLUE BROWN
GREEN/
YELLOW
UNITED KINGDOM
BLUE
(N - NEUTRAL) BROWN
(L - LINE)
GREEN/YELLOW
(E - EARTH)
SPARE PARTS
Use Hiretech genuine spare parts only for service and repair. Use of non-approved parts will void the product
warranty. See the back cover of this manual for the terms and conditions of the Hiretech Limited Warranty.

SPECIFICATION
The HTF-2 Floor Sander will sand wood floors,
including fine parquet, pre-finished and laminate
wood flooring systems, cork and composition floors
to a fine finish. Ideal for sanding between coats of
floor varnish and lacquers were a very high quality,
score free finish is required. The finally balanced
orbital action will not leave swirl marks in the floor
surface which may be highlighted when varnished.
Designed for sanding floors that are level and in
generally good condition were the existing varnish
has worn and requires re-finishing. Completely self
contained with a powerful dust pickup the HTF-2 is a
high performance floor sander suitable for
professional and home owner use.
SAFETY
1. For safety it is recommended that a residual
current circuit breaker (ground fault interrupter)
is used with this machine.
2. Check the operating voltage is correct and that
the machine is switched OFF (O) before
connecting to the power supply.
3. Never attempt to lock the switch in the ON (I)
position with tape or by any other means.
4. Always disconnect from the power supply when
changing the abrasive, servicing the floor
sander, replacing the dust bag or leaving the
machine unattended.
5. Always replace the dust bag when the dust in the
bag reaches the ‘MAX’ line or when the machine
is left unattended.
6. Never dispose of or empty the contents of the
dust bag into a fire or incinerator.
7. Never reuse the paper dust bag or use a non
standard bag.
8. Always wear a dust mask when using the floor
sander, handling the dust bag or cleaning the
machine after use.
9. Wear ear protection when using the floor sander.
10. Ensure adequate ventilation of the work area to
avoid the formation of a combustible mixture of
flying dust and air.
11. Never smoke when using or servicing the floor
sander or when handling the dust bag. Make
sure thast all possible sources of ignition are
removed from the work area.
12. Never expose the machine to rain or damp.
Always store in a dry place.
13. Stop the floor sander immediately if damage to
the machine or abrasive is suspected.
14. Never allow the power cable to come into contact
with the sanding pad when the floor sander is in
operation. If the power cable becomes damaged
and the inner conductors are exposed switch the
power OFF (O) and remove the plug before
attempting to move the machine. The cable must
be replaced by an authorized agent or qualified
electrician using genuine spare parts only.
15. Keep hands, feet and loose clothing away from
all moving parts of the machine.
16. Punch down or remove all nails, screws, tacks
and other fixings from the floor before sanding to
prevent contact with the sanding pad.
17. Keep children and pets clear at all times.
18. If the machine should fail to operate refer to the
fault finding guide on page 9.
Hiretech®
1
Read the following Safety and
Operational notes before using your
HTF-2 Floor Sander.
Noise: 95 dBa at 1metre (3’ 3")
Switch: Bias Off, double pole.
Motor RPM: 10,000
Sanding Pad
RPM:
3,000
Moving Parts: Sealed for life ball bearings.
Weight: 43kg (94.8lbs)
0.09 M² H Aeq8
(8 Hr. RMS )
400mm (15¾") x 115mm
(4½") random fibre abrasive
pad 280 grit and backing pad.
400mm (15¾") x 115mm
(4½") anti-clog adhesive
backed sheet 40 to 180 grit.
Abrasive:
Continuous heavy duty AC/DC
self cooling 4 brush.
400mm (15¾") x 115mm 4½"
MDF back with 4½" MDF
back with
Non-slip toothed timing belt
and toughened steel pinion
and drive gear.
Seated oversize vacuum fan,
disposable paper dust or cloth
bag.
Drive:
Dust Pickup:
Vibration:
Motor:
Sanding Pad:
110/120 V 50/60 Hz
220/240 V 50/60 Hz
110/120 V 8A
220/250 V 5A
Average
Load Current:
110/120 V 15A
220/250 V 8A
Power Supply:
Off Load
Current:

ASSEMBLY & TRANSPORT
1. The HTF-2 breaks down into two component
parts, the main body and handle assembly for
easy handling and transport. To assemble loosen
the Handle Clamp Handle and fit the handle
assembly to the Handle Yoke which should be
locked in the upright position. Tighten the
Handle firmly.
2. Pull the Dust Bag Frame down to its operating
position. Connect the Handle Cable to the Body
Twist Lock at the rear left hand side of the floor
sander body. Align the plug with the pins, push
in and twist clockwise to lock.
3. Fit a Hiretech disposable paper dust bag
following the instructions printed on the bag.
4. Tip the floor sander back so that it rests on the
Dust Bag Frame to fit the selected abrasive.
Remove the power cable from the handle
assembly. Check that the cable is in good
condition and the strain relief and plug are
secure. The floor sander is now ready to connect
to the power supply and start sanding.
5. To dismantle the floor sander reverse the
procedure 1 to 4 above.
6. Always carry the floor sander by the front hand
grip and the handle yoke which must be locked
in the upright position with the handle detached.
The dust bag frame should be stowed in the up
position.
Clamp
WARNING - Never carry the floor sander
by the handle assembly and body or with
the handle assembly attached. Failure to
observe this rule may result in personal
injury and/or damage to the floor sander.
CAUTION - Do not use any other type of
abrasive pad or backing material as this
may damage the floor and/or floor
sander.
7. Transport the sander with the sanding block and
abrasive pad in place this will help maintain the
dust brushes in good condition. Always ensure
that the floor sander is secure and cannot move
when being transported in a vehicle. The floor
sander is heavy. Take care when lifting and
carrying the machine.
1. Ensure the power cable is disconnected from the
power supply.
2. Lock the handle in the upright position and tip the
floor sander backwards so that it rests on the dust
bag frame.
To remove the sanding block take hold of each
end of the block and pull it off its mounting posts.
Take care to pull the block off evenly and avoid
trapping your fingers between the block and the
body of the floor sander.
3. Refer to the Abrasive Guide on page 6 for the
correct abrasive to use.
4. - fit an abrasive pad to the
sanding block. Carefully line the pad up with the
face of the sanding block and push down. The
pad is both a fine abrasive and a backing pad for
the coated abrasive sheets. It is important that
the pad is maintained in good condition and not
used beyond its useful working life.
5. - peel off the backing to
exposure the adhesive back and carefully fix the
abrasive to the face of the abrasive pad making
sure it is in line. When changing abrasive sheets
peel off carefully so as not to destroy the face of
the abrasive pad.
6. With the abrasive fixed to the sanding block re-
fit the block (if removed) to the floor sander.
7. Stand the floor sander up, it is now ready to use.
8. Periodically check that the abrasive pad is still in
line with the sanding block. If the machine is
tipped back when in operation the abrasive pad
may become misaligned.
If a sanding block is already fitted
the abrasive may be fitted with the sanding block
left in place or it may be removed if required.
Abrasive Pad
Abrasive Sheets
INSTALLING ABRASIVE
2
DUST BAG FRAME
DUST BAG
FOOT PEDAL
HANDLE
LIGHT
DUST BRUSH SANDING BLOCK
BUMPER
HANDLE YOKE
MOTOR COVER
HANDLE CLAMP
CABLE HOOK
POWER ON NEON
SWITCH HOUSING
ON/OFF SWITCH
Main Components

PREPARATION
OPERATION
1. Where possible remove all furniture from the
room. The HTF-2 Floor Sander features an
efficient dust pick-up, however, some dust will
escape. Protect all vulnerable furnishings with
dust sheets, masking films and tape.
2. Remove all tacks, staples and other unwanted
fixings from the floor. Failure to do so will result
in damage to the sanding pad and abrasive
sheet or pad.
3. Punch all nails below the surface of the floor
using a suitable nail punch and hammer. Any
screws used to fix boards should be counter sunk
below the surface. During sanding, any nails or
screws that become exposed must be punched or
counter sunk further.
4. Firmly fix all loose boards or blocks.
5. Remove heavy wax, grease and dirt deposits by
hand.
6. Sweep and vacuum the floor thoroughly to
remove dirt and discarded fixings.
7. Ensure good ventilation by opening windows.
1. Move the floor sander to the location of your
work.
2. Make sure the switch is in the OFF (O) position
then connect the main cable to a suitable power
supply ideally located behind or to one side of
the machine and work area.
3. Wear a dust mask and ear defenders.
4. Hold the handle with both hands and depress
foot pedal with your right foot. This will release
the handle.
5. Switch ON by pushing the ON/OFF switch down
using the thumbs of one hand to ON (I) position
and hold in place. Start moving immediately. To
switch OFF (O), release the pressure on the
switch and it will automatically return to the OFF
position.
CAUTION - the HTF-2 Floor Sander is a
powerful machine always ensure you
have a firm grip before switching on.
6. Follow the instructions carefully for sanding and
re-finishing a floor (see page 4 & 5). Walk slowly
forward and back, working progressively across
the floor. Do not dwell in one place. The floor
sander will glide easily across the surface of the
floor.
3
7. When the dust in the dust bag reaches the ‘MAX’
line stop sanding. Switch OFF, disconnect the
power cable from the power supply and remove
the paper dust bag. Turn the top of the paper
dust bag over to stop the escape of dust and
dispose of into a suitable container. Fit a new
paper dust bag. Reconnect to the power supply
and continue sanding. Never reuse the paper
dust bag or attempt to empty it.
6. Change the abrasive when the quality of the
sanding is reduced or the abrasive becomes
clogged.
(a) Always ensure that the floor sander is
moving when in operation and the
sanding pad is in contact with the floor.
(b) Never lift the back or front of the machine
when sanding.
(c) Never apply pressure to try and increase
the rate of sanding. Damage to the floor
will occur.
(d) Never bounce or drop the floor sander on
to the floor, always lower the machine
gently.
(e) Never dwell in one place, move steadily at
all times.
(f) Never allow the power cable to come into
contact with the sanding pad.
7.. When taking a break from work switch OFF (O)
and disconnect the power cable from the power
supply, remove and dispose of the paper dust
bag.
9. On completion disconnect the power cable from
the power supply. Remove and dispose of the
paper dust bag. Lock the handle in the upright
position and stow the power cable. Lock the dust
bag frame in its up position. Leave the old
abrasive pad in-place to protect the dust
brushes. Carry out maintenance as
recommended in Maintenance and Servicing.
DANGER - never leave the floor sander
unattended with dust in the dust bag.
Always remove the dust bag and dispose
of into a suitable container.
CAUTION - to prevent damage to the
floor surface, work piece or machine
follow these rules.

4
FLOOR SANDING TECHNIQUE
HT8-1.2 Floor Sander (Drum)
HT7-2 Disc Floor Sander (Edger)
HTF-2 Floor Sander (
Hand Sanding
- a powerful floor
sander designed for the rapid leveling and sanding of
all types of wood flooring excluding thin laminated or
veneered floors. Load the sander with abrasive
making sure that it is skin tight around the drum.
Loose sheets will tear. Place the sander on the right
hand wall (unless you are making an angled cut on
uneven floors) with about two thirds of the floor in
front of you. Start the sander with the drum off the
floor then walk forward at an even pace and ease the
drum on to the floor. As you near the end of the pass,
gradually raise the drum off the floor. Practice this
technique before turning on the sander.
Cover the same path you made on the forward cut by
pulling the machine backwards and easing the drum
to the floor as you begin the backward pass until you
reach the original starting point, then ease the drum
off the floor.
When two thirds of the floor is sanded, turn the floor
sander around and sand the remaining third in the
same way. Overlap the one third area by
( ) with the two thirds area to blend
the two areas together.
- a powerful disc
floor sander designed for sanding along the edges of
a floor without damaging the baseboards or
moldings. Also suitable for smaller areas where the
HT8-1.2 Floor Sander will not reach like stair treads
and closets. Load the abrasive disc making sure the
retaining bolt is tight. Start the edger with the disc off
the floor then lower the disc to the floor as you move
the sander.
- an orbital action
floor sander designed for re-finishing, sanding
between coats of varnish and re-surfacing floors in
good condition. Load the abrasive sheet, pad or strip.
Start the sander, move immediately and sand in the
direction of the grain using the same technique as the
drum floor sander. For difficult to reach areas use a
heavy duty hand held orbital sander or sand by hand.
- to sand difficult to reach areas
scrape and sand the floor by hand. Use a scraper to
remove old finishes, always scraping in the direction
of the grain, and then sand by hand using the same
grit abrasive as you finished with when machine
sanding. See Floor Sanding Technique diagrams on
page 5.
0.6 to 0.9
meters 2 to 3 feet
Work progressively moving the sander in
a sweeping motion from side to side.
WARNING - never bounce the sanding
drum or dwell in one place as this will
sand dips and hollows in the floor.
Orbital)
FLOOR TYPES
SOLID WOOD PLANK & STRIP FLOORS
VENEERED, LAMINATED & THINNER FLOORS
Old floors in good condition
Uneven floors
Floors with an existing finish
Hiretech
- when the floor is in
good condition - no uneven edges, cupping or
crowning of planks and strips - and you want to re-
surface the floor, sanding back to new wood, start
sanding in the direction of the planks or strips - with
the wood grain. Start with a medium grit abrasive.
Complete the first cut with the HT8-1.2 Floor Sander
then sand up to the baseboards and door thresholds
with the HT7-2 Disc Floor Sander, using a medium
grit abrasive, blending the edges in with the main
floor area. Sweep the floor. Using a medium/fine grit
abrasive, sand the main floor area with the drum
sander and then complete the floor with the edger
using a fine grit abrasive. Sweep the floor. Finish
sanding the main floor area with the drum floor
sander using a fine grit abrasive. If the floor is in
particularly good condition (level with no deep
scratches or blemishes) you may re-surface the floor
using the HTF-2 Floor Sander, however, as the
sanding action of this machine is less aggressive than
the HT81.2 Floor Sander the job will take more time.
- when the floor is uneven sand
diagonally at 45 across the room in both directions
using the HT8-1.2 Floor Sander with a coarse grit
abrasive. Only make one cut on both diagonals, this
will achieve a basic level. Now complete the floor as
for a level strip or plank floor. Use the same grit
abrasive as was used on the 45 cut for the first cut
parallel to the planks or strips.
- when re-finishing a
floor remove as little of the existing surface as
possible. If the old finish is worn and the floor is
generally in good condition use the HTF-2 Floor
Sander with abrasive pads and sheets
which have been especially designed for re-finishing
floors. These will maintain the integrity of any stain
used to colour the wood and prepare the surface for a
new coat of finish. If the floor is badly marked and
scratched and has to be sanded back to new wood
use the HT8-1.2 Floor Sander and HT7-2 Disc Floor
Sander. Always try a medium grade paper first,
particularly on a diagonal cut. If 90% of the old finish
is removed and the floor is generally leveled, you do
not need to use a coarse grit abrasive.
Use the HTF-2 Floor Sander for veneered and
laminated floors or thinner floors that may have been
subjected to repeated sanding. The HTF-2 will
remove old surface finishes and prepare the floor for
re-finishing. Sand the floor using the same method
as a strip, plank, or parquet floor. If the floor has
deeper scratches or marks these should be sanded
o
o

out by hand and blended in with the main floor. To
check the wood depth in the floor remove a
baseboard or molding from around the edge of the
floor. This should provide access to the edge of the
floor for inspection.
The grain of the wood will run in a number of
directions so sand the floor in the direction of the
main source of natural light in the room. If there is no
source of natural light sand in the direction of the
longest side of the room or, if the room is square, in
the direction the furniture is laid out and how people
normally use and view the room.
This technique will help mask any imperfections in the
PARQUET & BLOCK FLOORS
floor. Complete the sanding operation as detailed
for plank or strip floors.
Use the HTF-2 Floor Sander to sand between coats of
floor finish, particularly when using water based
varnishes. These types of finishes tend to raise the
wood grain when first applied to raw wood. Allow
each coat of varnish to dry completely following the
manufactures directions. Use Hiretech abrasive pads
to sand between each coat of varnish. The fine
abrasive pads will remove light brush/applicator
marks and raised grain while maintaining the
integrity of the coat of varnish applied.
BETWEEN COATS OF FINISH (VARNISH)
5
unsanded boards sanded boards
level very uneven
floors by sanding
diagonally in both
directions
unsanded boards
unsanded boards
Level uneven floors.
Sand main floor area.
Sand and blend edges in with main floor area.
FLOOR SANDING TECHNIQUE
Plank and Strip Floors
Parquet and Wood Block Floor
- sand in the
direction the boards are laid, with the
wood grain.
-
sand in the direction of the main
source of natural light. If there is no
natural source of light, sand in the
direction of the longest side of the
room. If the room is square, sand in
the direction the furniture is laid out
and how people normally use the
room.
s

HTF-2 FLOOR SANDER ABRASIVE GUIDE
DO NOT OVER-SAND USE ONLY AS HEAVY GRADE ABRASIVE AS IT TAKES TO DO THE
JOB. PROGRESS FROM FIRST GRADE USED THROUGH FOLLOWING GRADES TO
REMOVE ALL VISIBLE SANDING MARKS. DO NOT MISS A GRADE.
6
ABRASIVE GRADE APPLICATION FLOOR TYPE
Abrasive Sheet 40G
(Coarse)
Abrasive Sheet 60G
(Medium)
Abrasive Sheet 80G
(Medium)
Abrasive Sheet 120G
(Fine)
Abrasive Sheet 180G
(Extra Fine)
Abrasive Pad 280G
(Finishing)
For the rapid removal of stock and Use on solid raw wood
where a deep cut is required. floors.
Not recommended for use on
factory finished or laminate
flooring systems.
In progression from 40 grade to first Solid raw wood floors, and
sanding on floors where an existing stain
less stock removal. or finish is to be completely
removed from the wood prior
to new finish being applied.
Removal of stains and old finish from
the sub surface of the floor after
stripping of surface coatings with 80
grade (medium) abrasive.
Medium stock removal. Suitable for all floor types,
however, care should be
Rapid removal of surface coatings and taken on factory pre-finished
finishes. floors where the integrity of
seals and stains should be
maintained.
Light stock removal and where only a First sanding of floors that
minor dimensional change is required require re-finishing without
in the floor surface. the removal of old surface
coatings and where the
integrity of seals and stains
must be maintained.
Negligible stock removal prior to Suitable for all floor types.
application of finish.
Preparation for high quality finished Suitable for all floor types.
Surface.
Use to sand between coats
Flexible backing pad for abrasive of finish especially water
sheets. based stains and varnishes.
smooth surfaces requiring
Backing Pad

SERVICE & ROUTINE MAINTENANCE
CAUTION - maintenance and repairs
must be carried out by authorized
personnel only. To prevent injury, always
remove the power cable from the power
supply before undertaking any work on
the machine. Do not operate this
machine unless it is fully assembled and
all guards are in place. Use Hiretech
genuine spare parts only.
General
Visual Inspection
1. Always make a list when first examining the
machine, to remind you of parts or action
needed on completion of routine maintenance.
2. The HTF-2 Floor Sander is subject to high speeds
and vibration, all screws should be fitted using a
suitable thread lock compound.
3. The HTF-2 Floor Sander needs no lubrication
during routine servicing.
4. Always ensure that the electrical supply is
disconnected before starting any routine
servicing or repair.
5. Follow a regular schedule of routine
maintenance to keep your HTF-2 Floor Sander
in good working.
1. To clean the machine and remove dust, use a
vacuum cleaner to avoid damage and prevent
inhalation of dust.
2. Examine all external parts of the floor sander
making sure there is no damage. Check the
condition of the Dust Brush and Bumper around
the base of the floor sander, both of which should
be undamaged and in good condition. Check
that the Handle Yoke unlocks and moves freely in
its operating position.
3. Examine the sanding pads. These should be
undamaged and in good condition. They
should fit firmly to the fixing posts and pivot
slightly forward and back.
4. Examine the power cable for damage. If the
outer insulation shows the slightest of abrasions
or the inner conductors are exposed then the
cable must be replaced. The cable must not be
repaired with tape or insulation sleeve.
5. Ensure all labels are sound, readable and
secure.
6. Check that the rear wheels are sound and
moving freely. If a wheel is found to be loose or
damaged then the floor sander will not sand or
handle properly. Check and reset the wheels (see
Setting the Wheels on page 8). Replace
damaged wheels.
7. Check the condition of the Dust Bag Frame
making sure that it hinges down in to its
operating position and locks securely when
stowed.
1. Remove the handle and lay the floor sander on
its face. Remove the sanding pad if fitted and
inspect the underside for the build up of dust or
pieces of abrasive. Clean as required.
2. Inspect the condition of the Dust Brush. The
brush should be replaced if damaged or badly
worn.
1. The dive gears and drive belt do not require
maintenance under normal operating
conditions.
1. The HTF-2 Floor Sander features sealed for life
bearings which do not require any lubrication.
In the unlikely event that a bearing has to be
replaced use a Hiretech genuine spare part only
as the grease contained in the bearings is
special. A standard bearing is not suitable and
may result in further damage.
1. The motor must be kept clean and free from
grease and dust.
2. The motor brushes must be checked regularly.
Replace ALL FOUR motor brushes when any one
brush has worn to 12mm ( / ”) or less in length.
Brushes MUST slide freely in the brush holders.
There is no need to remove or disconnect any
internal leads when changing the brushes, only
the small braided shunt (pigtail) connected to the
motor brush is disconnected to release the brush.
3. To replace the motor Brushes ;
(1) Remove the four screws from the Motor
Cover and lift the cover off.
(2) Remove the four Spring Brushes and set to
one side. The springs are removed by
pushing the spring tag in towards the
brush and lifting out.
(3) Using a cross recess screwdriver remove
the four brush shunt (pigtail) retaining
screws and lock washers.
(4) Remove the four brushes.
Dust Control
Drive
Lubrication
Care of Motor
15
32
7

(5) Thoroughly clean the brush assembly and
housing using a soft brush and a suitable
vacuum cleaner.
(6) Inspect the four brushes for damage or
wear and if any one brush is found to be
damaged or worn to a l e n g t h o f
12mm ( / ”) or less in length then replace
all four brushes. Always replace all four
brushes together.
(7) When replacing brushes ensure that each
brush moves freely in each brush holder
and fit the brush with the shunt (pigtail) in
such a position as to allow free movement
throughout the brushes life. Ensure that
each brush shunt is connected securely
with the screw and lock washer (two spare
screws and washers are provided with
each pack of brushes). The brush should
be fitted so that the brush shunt (pigtail) is
at the bottom of the brush.
(8) Refit the brush springs by inserting into the
holder with the coil spring over the brush
then push in until the tag comes into
contact with the holder, slide the tag away
from the brush and release. The brush
spring will clip into position. Check the
springs and brushes for correct alignment
and free movement.
(9) Finally check that all leads and cables are
clear of moving parts and will not be
trapped when refitting the cover motor.
(10) Refit the cover motor and secure with the
four screws.
1. Remove the handle and turn the floor sander
upside down so that it rests on the motor cover.
Take care, the floor sander is heavy and can
easily over balance. Make sure that it is well
supported.
2. Fit the sanding block to the floor sander, making
sure that it is firmly seated.
3. Place a block of wood or other solid material on
the face of the sanding block 16mm ( / “) high
by 114mm (4½”) wide across the full width of the
sanding block.
15
32
Setting the Wheels
CAUTION - under normal operating
conditions the wheels should not have to
be adjusted. However, should you
suspect the wheels have gone out of
adjustment follow the procedure below
to check and reset the wheels.
58
4. Place a straight edge, a steel rule is best, across
the center of one wheel and the block of wood. If
the wheels are adjusted correctly there will be no
gap across the whole width of the block. If you
see a gap the wheels need adjustment.
If the gap is at the rear of the block toward the
back of the floor sander, the wheels are too low.
If the gap is at the front of the block, toward the
front of the floor sander the wheels are too high.
5. If the wheels need adjustment. Loosen the Axle
Clamp screws located under the axle which will
be facing you when the floor sander is upside
down resting on the motor cover.
6. Rotate the axle via the socket head screw located
in the center of the wheels. As you rotate the axle
via the socket head screw the wheels will rise or
fall . Adjust the wheels so that the straight edge
rests on the center of the wheels and the wood
block so that there is no gap across the whole
width of the block.
7. When the wheels are correctly adjusted tighten
the axle clamp screws. Check the socket head
screws in the center of the wheels are tight.
1. Examine the power cable for damage. If the
outer insulation shows the slightest of abrasions
or the inner conductors are exposed then the
cable must be replaced. The cable must not be
repaired with tape or insulation sleeve.
2. Open and check the mains plug for condition,
loose connections, damaged wires etc. Ensure
that the strain relief of the plug is correctly
secured to the outer cable insulation. This does
not apply if the plug is molded on to the power
cable.
3. Remove the question switch housing screws and
lift separate the switch housing. Check the
switch, connections, leads etc. Pay special
attention to any gaskets, ‘O’ rings and seals
intended to exclude dust from the switch and
switch housing area. These must be maintained
in good condition.
Carefully brush and vacuum clean the switch
housing.
4. Refit the switch housing taking care not to trap
any leads.
CAUTION - testing for electrical safety
should only be undertaken by a
competent person and all results
recorded. Do not exceed 1250 volt
insulation test duration of 3 seconds
ELECTRICAL TESTING
8

5. Using a piece of insulation tape or a small soft
wedge lock the bias off switch in the ‘ON’
position.
6. Use the standard procedure test for electrical
safety. Do not exceed 1250 volt insulation test
duration of 3 seconds.
5. Record the test results.
6. Complete a functional (run) test and record
results.
FAULT FINDING
FAULT CAUSE ACTION
The machine does not run. The power cable is not Connect the power cable to the
connected to the power supply. power supply.
The motor brushes are worn. Replace the motor brushes.
The voltage is too low. Check the main power
complies with the machine's
serial plate data.
The machine will not pickup The dust bag is full. Replace the paper dust bag or
dust. empty the cloth dust bag.
There is an obstruction in the Disconnect the machine from
dust pick-up. the power supply, tip the
machine back and remove the
sanding pad, check for
obstruction.
The dust brush is worn. Replace the dust brush.
The machine does not sand The sanding pad is damaged. Check and replace the sanding
evenly. pad.
The wheels are out of Check and adjust the wheels.
adjustment.
The sander does not glide easily The machine is not being Read the instructions, do not
in a straight line. operated properly. apply pressure when sanding.
The wheels are out of Check and adjust the wheels.
adjustment.
The Abrasive Pad Replace the Abrasive Pad
The machine runs slow. The voltage is low. Check the supply voltage.
If an extension lead is being
used, is it undersize and/or
is it coiled.
A motor brush is not making Check and refit or replace
contact. the motor brushes.
is worn.
CAUTION - when undertaking a
functional (run) test make sure the
machine is secure. Remember the
sanding pad will rotate.
9

10
HTF-2 PARTS DIAGRAM
From Serial Number
00579 - 110/120 Volt
00579 - 220/240 Volt
FLOOR SANDER
MODEL HTF-2
OWNERS MANUAL & OPERATING INSTRUCTIONS
DECEMBER2000 REF.180 PART# 031390
PRINTEDIN THE UK
4
321
4
6
13
4
6
7
8
511
180
9
10
12
15
18
37
170
85
46
27
26
39
29
49
50
47
16
25
17
24
27
26
35
37
36 156
19
23
55
30
39
29
22
21
20
67
68
64
65
123
28
151
34 31
32 33
127 62 63
53 61
157
60
54
48
51
59
52
56
58
57
250
HIRETECH
SERVICE TOOL

HTF-2 PARTS DIAGRAM
11
83
89
82
81
84
21
86
81
80
88
93
94
6
91
92
95
96
90
97
99
100
101
102
98
103
104
105
106
96
107
108
22
110
111
112
113
128
129
130
131
132
133
6
119
118
22
110
111
113
128
129
130
138
132
133
6118
114
85
46
6
47
126
48
155
124
140
116
122
115
120
121
135
136
137
131
139
117
134
127
141
147
148
147
150
151
149
123 146
152
154
153
143
130
144
145
129
138
142
92
125

12
PARTS LIST HTF-2
1 011600 1 Switch 220/240 Volt (Bias Off)
1 011610 1 Switch 110/120 Volt (Bias Off)
2 030425 1 Housing Switch Assembly
3 030630 1 Stop Rubber
4 030920 7 Screw
5 031870 2 Grip Hand
6 010270 5 Washer Lock
7 030640 1 Lamp Neon 110/120 Volt
7 030650 1 Lamp Neon 220/240V
8 030950 2 Lead Neon
9 101206 1 Nut Lock
10 101205 1 Strain Relief
11 030660 1 Cable Main Assembly 110 Volt (NA)
11 030670 1 Cable Main Assembly 220/240 Volt (UK)
11 030680 1 Cable Main Assembly 110 Volt (UK)
11 030690 1 Cable Main Assembly 220 Volt (EEC)
11 030700 1 Cable Main Assembly 220/240V (AUS)
12 030910 1 Tube Handle Assembly
13 962345 10 Screw
15 164508 1 Hook Cable
16 980197 1 Washer
17 920148 1 Nut
18 030930 1 Handle Cable (NA)
18 030940 1 Handle Cable
18 031000 1 Handle Cable 110 Volt (UK)
19 101220 1 Strain Relief Handle Cable
19 163804 1 Strain Relief Handle Cable (NA)
20 911046 1 Body Twist Lock
21 010210 4 Screw
22 031400 1 Base Twist Lock
23 031910 1 Nut
24 030450 1 Clamp Handle
25 030042 1 Handle Frame
26 031790 2 Pin Pivot
27 031160 2 Screw
28 031900 1 Bolt
29 031800 2 Bush Bearing
30 030222 1 Latch
31 031810 1 Screw
32 031890 1 Washer
33 031880 1 Spacer Latch Pivot
34 031820 1 Screw
35 031840 1 Spring Latch Return
36 031830 1 Cover Screw
37 031850 2 Screw
39 030550 2 Washer
46 030030 1 Housing Motor
47 030022 1 Housing Gear
48 030010 1 Housing Lower
49 031090 6 Screw
50 030270 1 Window Lamp
51 031130 16 Nut
52 031120 16 Screw
53 030360 1 Brush Set
54 030350 1 Bumper
55 030300 1 Support Bag (check Serial No.)
56 031010 4 Bolt
57 031020 4 Wing Nut
58 030390 2 Clamp Abrasive
59 030400 2 Bush
60 030370 1 Sanding Block
61 030380 1 Sanding Block Abrasive Pad
62 030790 4 Screw
63 030060 1 Retainer Wheel
64 030320 1 Housing Eccentric
65 030070 2 Wheel
67 031420 1 Exhaust Guard
68 031430 1 Ring Retainer
80 030990 1 Lead Motor
81 010750 2 Brush Shunt
82 010170 1 Brush Block Assembly
83 010190 4 Screw Pack of 4
84 010200 4 Washer
86 010220 4 Screw and Washer Set
88 010180 4 Brush Motor
89 010230 4 Brush Spring
90 032000 1 Field 110/120 Volt HTF
90 032010 1 Field 220/240 Volt HTF
91 010290 1 Baffle
92 010300 3 Screw
93 010260 2 Washer Clamp
94 010280 2 Screw
95 010600 1 Spring Load
96 010320 2 Bearing
97 010330 1 Armature 110/120 Volt
97 010340 1 Armature 220/240 Volt
98 010350 3 Key
99 010360 1 Fan Motor
100 010370 1 Gasket
101 010380 1 Plate Exhaust
102 010390 1 Fan Intake
103 010400 1 Ring Retainer
104 010410 1 Spacer Bearing
105 010420 1 Seal
106 010430 1 Ring Retainer
107 031520 1 Spacer Pulley
108 030180 1 Pulley Drive
110 010010 4 Screw
111 030090 1 Cover Motor
112 011840 1 Insert Bearing
113 031280 1 Bush Insulator
114 031070 1 Lead Ground (Earth)
115 031040 1 Lead Lamp/Ballast
116 031050 1 Lead Lamp/Twistlock
117 031060 1 Lead Ballast/Twistlock
118 030710 1 Ballast Start 220/240 Volt
Ref. PSTK Pack Description
Qty. Ref. PSTK Pack Description
Qty.

118 030720 1 Ballast Start 110/120 Volt
119 163838 2 Screw
120 163808 1 Grommet
121 030280 1 Plate Lamp
122 030730 1 Holder Lamp
123 030760 3 Screw
124 030750 1 Lamp
125 030740 2 Screw
126 031450 4 Screw
127 030820 7 Screw
128 031300 1 Plug Bearing
129 030480 2 Clip
130 030490 2 Clip
131 030470 1 Bearing
132 030130 1 Shaft Drive
133 030510 1 Key
134 030150 1 Belt Drive
135 030170 1 Bush Pulley
136 030190 1 Pulley Driven
137 031170 2 Screw
138 030460 3 Bearing
139 030500 1 Clip
140 030120 1 Balance Weight
141 030080 1 Holder Sanding Pad
142 030410 1 Plate Cover
143 030110 1 Bush Eccentric
144 030440 1 Cap Retaining
PARTS LIST HTF-2
145 030780 1 Screw
146 030520 2 Spring Sanding Pad
147 980629 1 Washer
148 030830 2 Screw
149 010680 1 Pin Cotter
150 030850 2 Nut
151 030860 3 Washer
152 030100 2 Pin
153 030600 2 Spring Plunger
154 030840 2 Screw
155 030770 2 Screw
156 031650 1 Knob Assembly
157 031370 1 Hook and Loop Pad
170 07038 25 Disposable Paper Dust Bag HT7/HTF
Pack 2 (box 25)
170 07040 50 Disposable Paper Dust Bag HT7/HTF
(box 50)
180 031390 1 Owners Manual & Operating Instructions
250 011740 1 Service Tool - Pinion & Pulley
Fitting/Removal
250 031490 1 Service Tool - Lever Block Holder HTF
250 031610 1 Service Tool - Jacking Bolts HTF
Special Tools (not illustrated)
13
Ref. PSTK Pack Description
Qty. Ref. PSTK Pack Description
Qty.
FLOOR SANDER ABRASIVES
24 Grit Open Coat 01001 - - - -
24 Grit 01002 01026 01044 - -
40 Grit Open Coat - - - - -
40 Grit 01003 01027 01045 01750 -
60 Grit - - - 01751 -
80 Grit 01004 01028 01046 01752 -
100 Grit - - - - -
120 Grit 01005 01030 01048 01754 -
180 Grit - - - - 01756 -
Abrasive Pad 280G/Backing Pad - - - - 01769
HT8/DU8
FLOOR SANDER
SHEET
50/CASE
HT7/SUPER 7
EDGER DISC
FIBRE BACKED
25/CASE
HT7/SUPER 7
EDGER DISC
PAPER BACKED
25/CASE
HTF
FLOOR SANDER
SHEET
ADHESIVE BACKED
50/CASE
HTF
ABRASIVE PAD
20/CASE
Hiretech Abrasive Product Range
Hiretech recommend the following
abrasive range which are suitable
for all floor types and applications.

14
HTF-2 CIRCUIT DIAGRAM
GREEN/YELLOW (GREEN - N.AMERICA)
BLUE (WHITE - N.AMERICA)
BROWN (BLACK - N.AMERICA)
ARMATURE
(ROTOR)
FIELD
(STATOR)
HANDLE CABLE
SWITCH
MAIN CABLE
LAMP TUBE
BALLAST UNIT
6
3
7
8

DECLARATION OF CONFORMITY
This declaration identifies the product, manufacturer's name and address, and applicable specifications
recognised in the European community.
15
DECLARATION OF CONFORMITY
Manufacturer's Name:
Manufacturer's Address:
declares that the product:
Product Name:
Model Name: HTF-2
HTF-2
conforms to the following:
following the provisions of the directives:
electrical safety test procedures comply with:
Hire Technicians Group Ltd.
Chalk Hill House
8 Chalk Hill
Watford
Herts WD1 4BH
Hiretech Floor Sander
230 Volt 50Hz Insulation Class 1
110 Volt 50Hz Insulation Class 1
Machinery Directive (Harmonised) 89/392-EU as amended
Low Voltage Directive (Harmonised) 73/23/EU as amended
Electromagnetic Compatibility Directive 89/336/EU as amended
89/392/EU, 93/44EU, 73/23/EU, 93/68/EU, 89/336/EU, 91/368/EU,
92/31/EU
EN60 335-1-88 (HD 251-1-3) BS 3456-201 EN292-1-91
EN292-2-91 EN60204-1-92
EN55014-93 (BS 800) EN 50082-1-92
IEC 745-2-4 (HD 400.2) (BS 2769-2-2.4)
IEC 335 pt. 1-2, HD251 1-3 1982, BS 2769 & 3456, CSA C22.2,
KEMA K78A1/W1 & W3, NEMKO 503./89, DIN VDE 0700 1/04.88
HD 264.S2 15/07.86
Where the product is licensed to carry a National Approval Mark it is
certified that all such products comply with the terms of that license.
C.J. Hedger, Director of Engineering. 1 July 2003

17
SERVICE & REPAIR
Contact your reseller for the name of your local service agent. Service and repairs undertaken by non-approved
service agents will void the product warranty. If you should have difficulty in obtaining service please contact your
distributor nearest to you at the address given below.
For the latest list of Hiretech dealers check on the Hiretech web site at www.hiretech biz/contact/dealerlist.html.
Hiretech® is registered trademark of Hire Technicians Group Limited
Hiretech Pty Ltd
AUSTRALIA
Devomat Industries N.V.
BELGIUM
Deltaquip Supplies Ltd
CANADA
VIF Diffusion
FRANCE
Tool Matic A/S
DENMARK
Kage Enterprises
REPUBLIC OF IRELAND
Turner Morris (Pty) Ltd
Hire Technicians Group Ltd
UNITED KINGDOM
Hiretech Inc
USA
11 Government House Drive Tel: [phone]
Emu Plains Fax: [phone]
NSW Email: [email protected]
2750 Web: www.hiretech.biz
'FL. Geversstraat 31 Tel: [phone]
B-2650 Fax: [phone]
Edegem Email: [email protected]
Web: www.devomat.be
2282 Alpha Avenue Tel: [phone]
Burnaby B.C. Fax: [phone]
V5C 5L6 Email: [email protected]
Web: -
rue du Chateau-BP70112 Tel: [phone]
59052 Roubaix Fax: [phone]
Cedex 1 Email: [email protected]
Web: -
Vedskollevej Tel: [phone]
Herfolge Fax: [phone]
4681 Email: [email protected]
Web: www.tool-matic.dk
73 New Road Tel: [phone]
Clondalkin Fax: [phone]
Dublin 22 Email: -
Web: -
39 Robyn Road Tel: [phone]
Benrose Fax: [phone]
P.O. Box 27252 Email: [email protected]
[email protected]
Web: www.turnermorris.co.za
Chalk Hill House Tel: [phone]
8 Chalk Hill Fax: [phone]
Watford Email: [email protected]
Herts Web: www.hiretech.biz
WD19 4BH
661 Route 3 Tel: [phone]
Unit A Fax: [phone]
Plattsburgh Email: [email protected]
NY 12901 Web: www.hiretech.biz
2011
SOUTH AFRICA

MANUFACTURED BY
HIRE TECHNICIANS GROUP LIMITED
CHALK HILL HOUSE, 8 CHALK HILL, WATFORD,
HERTS, WD19 4BH. UNITED KINGDOM
TEL: [phone] FAX: [phone]
E-mail: [email protected] Web: www.hiretech.biz
HIRETECH LIMITED WARRANTY
®
Hiretech warrants to the original purchaser that the Hiretech machine covered by this warranty is free
from defects in workmanship and materials. Should any part fail in the period of two years from the date
of the original purchase as a result of a defect, Hiretech will (at it’s option) either repair or replace the
part without charge provided that the machine has been operated in accordance with the Owners
Manual and Operating Instructions.
Should any such defect arise, please contact your nearest authorised repair agent. Standard service
over land mainland freight costs will be refunded on warranty repairs at the sole discretion of Hiretech or
the authorised repair agent. If the repair is non-warranty, the customer will be advised before any work
is undertaken.
This warranty is the sole warranty by Hiretech and is in lieu of all other warranties express or implied
and releases Hiretech from all other obligations and liabilities.
This warranty does not apply to normal wear and tear to the machine, and in particular does not cover
normal wear parts such as mains cable, wheels, switches, relays, brushes, rubber parts, hoses and
bearings. This warranty also does not cover, and Hiretech will not be liable for, excessive wear caused
by abnormal use.
Hiretech will under no circumstances be liable for alterations to the machine or for damage caused by
third persons, or for misuse or abuse of the machine, or damage caused during transportation. Repairs
of the machine made or attempted by persons other than those specifically authorised by Hiretech shall
render this warranty void and Hiretech will not be liable for such repairs, the cost of such repairs, or the
consequences of such repairs. Where spare parts are used on the machine and they do not conform to
Hiretech specifications, this warranty will be rendered void and Hiretech will not be liable.
Hiretech will not be liable for any indirect or consequential loss, damage, cost or expense of any kind
whatever and however caused whether arising under contract, tort (including negligence) or otherwise
including (without limitation) loss of production, loss of profits or contracts or of operating time or
goodwill or anticipated savings.
® ®
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