Trend STAIR/A User guide

STAIR JIG

STAIR JIG

Dear Customer

Thank you for purchasing this Trend product, we
hope you enjoy many years of creative and
productive use.

Please remember to return your guarantee card
within 28 days of purchase.

CONTENTS

TECHNICAL DATA _____________________1
SAFETY PRECAUTIONS ______________2-3
ITEMS ENCLOSED ____________________4
ASSEMBLY __________________________5
DESCRIPTION OF PARTS ______________5
PARTS OF STAIRCASE ______________6 - 7
OPERATION
STAIR/A _____________________________8

- Cutters for use with Stair/A______________8

- Setting up String without Newels _________8

- Setting up the Router __________________8

- Setting up Template on the String ________9

- Cutting the String ____________________10

- Cutting the opposing String ____________10

- Assembly of Treads and Risers _________10
OPERATION
STAIR/B ____________________________11

- Basic Information before setting up ______11

- Fitting the Sub-base to the Router _______11

- Setting out the String _________________11

- Fitting the Template __________________11

- Cutting the String ____________________11

- Cutting the opposing String ____________11
MAINTENANCE ______________________12
ENVIRONMENTAL PROTECTION________12
GUARANTEE ________________________12
SPARE PARTS

- Spare Parts List - STAIR/A ___________13

- STAIR/B ___________14

- Spare Diagram - STAIR/A ___________15

- STAIR/B ___________16

TECHNICAL DATA

STAIR/A Closed Riser
Tread thickness 22mm - 32mm
Slider diameter 30mm
Nosing adjustment 16mm - 19mm
Weight 6.17kg

STAIR/B Open Riser
Tread thickness 32mm
Riser thickness 16mm
Guide bush diameter 24mm
Weight 6.3kg

The following symbols are used throughout this
manual:

Denotes risk of personal injury, loss of
life or damage to the tool in case of non­observance of the instructions in this
manual.

Refer to the instruction manual of
your power tool.

This unit must not be put into service until it has
been established that the power tool to be
connected to this unit is in compliance with
2006/42/EC (identified by the CE marking on the
power tool).

INTENDED USE

The jig is intended to be used to rout stair
trenches in wood using a 1/2” shank portable
plunge router with a suitable router cutter fitted.

If you require further safety advice,

%

technical information or spare parts,
please call our technical support
department or visit www.trend-uk.com

-1-

STAIR JIG

SAFETY

WARNING:

Observe the safety regulations in the
instruction manual of the power tool to be
used. Please read the following
instructions carefully. Failure to do so
could lead to serious injury. When using
electric tools, basic safety precautions,
including the following should always be
followed to reduce the risk of fire, electric
shock and personal injury. Also observe
any applicable additional safety rules.
Read the following safety instructions
before attempting to operate this product.

PLEASE KEEP THESE
INSTRUCTIONS IN A SAFE PLACE.

The attention of UK users is drawn to The
Provision and Use of Work Equipment
Regulations 1998, and any subsequent
amendments.

Users should also read the HSE/HSC
Safe Use of Woodworking Machinery
Approved Code of Practice and Guidance
Document and any amendments.

Users must be competent with
woodworking equipment before using our
products.

IMPORTANT NOTE:

Residual Risk. Although the safety
instructions and operating manuals for
our tools contain extensive instructions on
safe working with power tools, every
power tool involves a certain residual risk
which cannot be completely excluded by
safety mechanisms. Power tools must
therefore always be operated with
caution!

General

1. Disconnect power tool and attachment

from power supply when not in use,
before servicing, when making
adjustments and when changing
accessories such as cutters. Ensure
switch is in “off” position. Always
ensure cutter has stopped rotating.

2. Always mount the power tool,

accessory or attachment in conformity
with the instructions. Only use
attachment and accessories specified
in the power tool manual. The tool or
attachment should not be modified or
used for any application other than
that for which it was designed. Do not
force tool.

3. Keep children and visitors away. Do

not let children or visitors touch the
tool, accessory or attachment. Keep
children and visitors away from work
area. Make the workshop child proof
with padlock and master switch.

4. Dress properly. Do not wear loose

clothing or jewellery, they can be
caught in moving parts. Rubber
gloves and non-skid footwear is
recommended when working

outdoors. Wear protective hair
covering to contain long hair.

5. Consider working environment. Do

not use the product in the rain or in a
damp environment. Keep work area
well lit. Do not use power tools near
gasoline or flammable liquids. Keep
workshop at a comfortable
temperature so your hands are not
cold. Connect machines that are used
in the open via a residual current
device (RCD) with an actuation
current of 30 mA maximum. Use only
extension cables that are approved for
outdoor use.

6. The accessory or attachment must be

kept level and stable at all times.

7. Keep work area clean. Cluttered

workshops and benches can cause
injuries. Ensure there is sufficient
room to work safely.

8. Secure idle tools. When not in use,

tools should be stored in a dry and
high or locked up place, out of reach
of children.

9. For best control and safety use both

hands on the power tool and
attachment. Keep both hands away
from cutting area. Always wait for the
spindle and cutter to stop rotating
before making any adjustments.

10.Always keep guards in place and in

good working order.

11.Remove any nails, staples and other

metal parts from the workpiece.

12.Maintain tools and cutters with care.

Keep cutters sharp and clean for
better and safer performance. Do not
use damaged cutters. Follow
instructions for lubricating and
changing accessories. Keep handles
dry, clean and free from oil and
grease.

13.Maintain accessories. Do not use

damaged accessories. Only use
accessories recommended by the
manufacturer.

14.Check damaged parts. Before

operation inspect the attachment, the
power tool, the cable, extension cable
and the plug carefully for signs of
damage. Check for alignment of
moving parts, binding, breakage,
mounting and any other conditions
that may effect its operation. Have any
damage repaired by an Authorised
Service Agent before using the tool or
accessory. Protect tools from impact
and shock.

15.Do not use tool if switch does not turn

it on or off. Have defective switches
replaced by an Authorised Service
Agent

16.Donʼt over reach. Keep proper footing

and balance at all times. Do not use

-2-

awkward or uncomfortable hand
positions.

17.Donʼt abuse the cable. Never carry

power tool or accessory by cord or
pull it to disconnect from the socket.
Keep cord from heat, oil and sharp
edges. Always trail the power cord
away from the work area.

18.Connect dust extraction equipment.

If devices are provided for the
connection of dust extraction and
collection facilities, ensure these are
connected and properly used.

19.Check all fixing and fastening nuts,

bolts and screws on power tool,
attachment and cutting tools before
use to ensure they are tight and
secure. Periodically check when
machining over long periods.

20.Stay alert. Watch what you are doing.

Use common sense. Do not operate
tools when you are tired, under the
influence of drugs or alcohol.

21.Personal Protective Equipment (PPE)

for eye, ear and respiratory protection
must be worn. All PPE must meet
current UK and EU legislation.

22.Do not leave tools running

unattended. Do not leave tool until it
comes to a complete stop.

23.Always clamp workpiece being

machined securely.

24.Only use cutting tools for

woodworking that meet EN847-1/2
safety standards, and any
subsequent amendments.

25.Vibration levels. Hand held power

tools produce different vibration
levels. You should always refer to the
specifications and relevant Health &
Safety Guide.

Routing Safety

1. Read and understand instructions

supplied with power tool, attachment
and cutter.

2. Keep hands, hair and clothing clear of

the cutter.

3. Remove adjusting keys and

spanners. Check to see that keys
and adjusting spanners are removed
from the router tool, cutter and
attachment before turning router on.
Make sure cutter can rotate freely.

4. Noise. Take appropriate measures

for the protection of hearing if the
sound pressure of 85dB(A) is
exceeded. Routing sound pressure
may exceed 85dB(A), so ear
protection must be worn.

5. Eye protection. Always wear eye

protection in the form of safety
goggles, spectacles or visors to
protect the eyes.

STAIR JIG

6. Respiratory protection. Wear a face

or dust mask, or powered respirator.
Dust masks/filters should be changed
regularly.

7. Do not switch router on with the cutter

touching the workpiece. At the end of
the cut, release the router plunge and
allow spindle to stop rotating. Never
use the spindle lock as a brake.

8. The direction of routing must always

be opposite to the cutterʼs direction of
rotation. Do not back-cut or climb-cut.

9. Check before cutting that there are no

obstructions in the path of the router.
Ensure there are no obstacles
beneath workpiece when cutting full
thickness, and that a sacrificial work
surface is used.

Router Cutter Safety

1. Cutting tools are sharp. Care should

be taken when handling them. Do not
drop cutters or knock them against
hard objects. Handle very small
diameter cutters with extra care.
Always return cutter to its packaging
after use.

2. Always use cutters with a shank

diameter corresponding to the size of
the collet installed in your tool.

3. The maximum speed (n.max) marked

on the tool, or in instructions or on
packaging shall not be exceeded.
Where stated the speed range shall
be adhered to. Recommended speeds
are shown in the Trend Routing
Always use router cutters in a router.
Drill and boring bits must not be used
in a router. Router cutters must only
be used for the material cutting
application for which they are
designed. Do not use on metal or
masonry.

5. Never use cutters with a diameter

exceeding the maximum diameter
indicated in the technical data of the
power tool or attachment used.

6. Before each use check that the cutting

tool is sharp and free from damage.
Do not use the cutting tool if it is dull,
broken or cracked or if in any other
damage is noticeable or suspected.

7. Cutters should be kept clean. Resin

build up should be removed at regular
intervals with Resin Cleaner. The use
of a PTFE dry lubricant will reduce
resin build up. Do not use PTFE spray
on plastic parts.

8. When using stacked tooling (multi-

blade, block and groover etc.) on a
spindle arbor, ensure that the cutting
edges are staggered to each other to
reduce the cutting impact.

9. Cutter shanks should be inserted into

the collet all the way to the line
indicated on the shank. This ensures

that at least 3⁄4 of the shank length is
held in the collet. Ensure clamping
surfaces are cleaned to remove dirt,
grease, oil and water.

10.Observe the correct assembly and

fitting instructions in the router
instruction manual for fitting the collet,
nut and cutter.

11.Tool and tool bodies shall be clamped

in such a way that they will not
become loose during operation. Care
shall be taken when mounting cutting
tools to ensure that the clamping is by
the shank of the cutting tool and that
the cutting edges are not in contact
with each other or with the clamping
elements.

12.It is advisable to periodically check

the collet and collet nut. A damaged,
worn or distorted collet and nut can
cause vibration and shank damage.
Do not over-tighten the collet nut.

13.Do not take deep cuts in one pass;

take several shallow or light passes to
reduce the side load applied to the
cutter and router. Too deep a cut in
one pass can stall the router.

14.In case of excessive vibrations whilst

using the router stop immediately and
have the eccentricity of the router,
router cutter and clamping system
checked by competent personnel.

15.All fastening screws and nuts should

be tightened using the appropriate
spanner or key and to the torque
value provided by the manufacturer.

16. Extension of the spanner or tightening

using hammer blows shall not be
permitted.

17. Clamping screws shall be tightened

according to instructions provided by
the manufacture. Where instructions
are not provided, clamping screws
shall be tightened in sequence from
the centre outwards.

Using Routers In A Fixed Position

1. 1. Attention should be made to the

HSEʼs Safe Use of Vertical Spindle
Moulding Machines Information Sheet
No.18 and any revisions.

2. After work, release the router plunge

to protect the cutter.

3. Always use a push-stick or push-block

when making any cut less than
300mm in length or when feeding the
last 300mm of the cut.

4. The opening around the cutter should

be reduced to a minimum using
suitably sized insert rings in the table
and closing the back fence cheeks or
fitting a false fence on the back fence.

5. Whenever possible use a work

holding device or jig to secure
component being machined. Ensure

-3-

any attachment is securely fitted to the
workbench, with table surface at
approximately hip height.

6. Use a No-Volt Release Switch. Ensure

it is fixed securely, easily accessible
and used correctly.

7. In router table (inverted) mode, stand

to the front right of the table. The
cutter will rotate anti-clockwise when
viewed from top so the feed direction
is from the right (against the rotation of
the cutter). In overhead mode, stand
to the front left of the machine table
and the feed direction is from the left.

8. Do not reach underneath table or put

your hands or fingers at any time in
the cutting path while tool is connected
to a power supply.

9. Never thickness timber between the

back of the cutter and the backfence.

Useful Advice When Routing

1. Judge your feed rate by the sound of

the motor. Feed the router at a
constant feed rate. Too slow a feed
rate will result in burning.

2. Trial cuts should be made on waste

material before starting any project.

3. When using some attachments e.g. a

router table or dovetail jig, a fine
height adjuster is recommended.

4. When using a template guide bush,

ensure there is sufficient clearance
between cutter tip and inside edge of
bush and that it cannot come into
contact with collet and nut. Ensure
cutter and guide bush are concentric.

Router Cutter Repair/Maintenance

1. Repair of tools is only allowed in

accordance with the manufacturers
instructions.

2. The design of composite (tipped) tools

shall not be changed in process of
repair. Composite tools shall be
repaired by a competent person i.e. a
person of training and experience, who
has knowledge of the design
requirements and understands the
levels of safety to be achieved.

3. Repair shall therefore include, e.g. the

use of spare parts which are in
accordance with the specification of
the original parts provided by the
manufacturer.

4. Tolerances which ensure correct

clamping shall be maintained.

5. Care shall be taken that regrinding of

the cutting edge will not cause
weakening of the body and the
connection of the cutting edge to the
body.

Version 7.2 06/2013

STAIR JIG

STAIR JIGS

GUARANTEE

STAIR JIG

ITEMS ENCLOSED

x1

x1

x4

x1

x4

x2

x2

x1

x1

x1

For STAIR/A only

x1

x1

x1

x1

For STAIR/B only

x1

x1

x1

x2

ITEMS REQUIRED

n 1/2” plunge router with suitable collet fitted.

n Stair housing cutter of suitable size.

n Hand Tools.

n User made spacer blocks.

n Suitable workbench.

x1

-4-

x1

x2

x1

x1

x1

x1

STAIR JIG

R
Q

P

L

O
M

N

W

V

U

T

S

W

ASSEMBLY & DESCRIPTION OF PARTS

For STAIR/A and STAIR/B

B

C

D

K

A. Main board (STAIR/A or STAIR/B)
B. Handle for clamp
C. Hex nut for clamp
D. Clamp assembly
E. Aluminium clamp bar
F. Barrel nut for clamp bar
G. Washer for clamp bar
H. Stud for clamp bar
I. Washer for clamp bar
J. Nut for clamp bar
K. Machine screw for clamp bar
L. Sub-base for STAIR/A
M. Line-up bush for STAIR/A
N. Line-up pin 1/2” shank for STAIR/A
O. Sub-base fixing screw
P. Sub-base slider for STAIR/A
Q. Washer M6 for STAIR/A slider
R. Hex nut M6 for STAIR/A slider
S. Sub-base for STAIR/B
T. Line pin 1/2” shank for STAIR/B
U. Line up bush 16mm dia. for STAIR/B
V. Guide bush 24mm dia. for STAIR/B
W. Guide bush fixing screw for STAIR/B
X. Spanner 13mm
Y. Spanner 10mm/13mm

STAIR/A

X
J

I

J

I
E
F
G
H
F
G
H
A

STAIR/B

G

F

G
F

Y

-5-

STAIR JIG

Margin

PARTS OF A STAIRCASE

Going

The going of a step is measured on plan
between the nosing of its tread and the nosing
of the step above or landing above or, as the
British Standard says, face of riser to face of
riser.
The going should not be less than 220mm for a
private stairway and not less than 240mm for a
common stairway.

Rise

Measured from the top of the tread to top of the
tread. Every step or landing must be of equal
rise between consecutive floors. The rise of a
step must not be more than 220mm for a private
stairway and not more than 190mm for a
common stairway. Approved Document K Part

1.14 says the number of risers in a flight should
be limited to 16 if a stairway serves an area
used for shop or assembly purposes. Part 1.15
says that stairways of more than 36 risers in
consecutive flights should make at least one
change of direction of at least 30° between
flights.

Nosings

The nosings on treads usually project 19mm (or
thickness of the tread) from the face of the riser
below and should, in any case, project not less
than 16mm. The profile should be rounded.

be between 840mm and 1000mm high and give
firm support.

It is a Building Regulation requirement that no
openings in any balustrades should allow the
passage of a sphere of 100mm in diameter, that
is, about the size of a childʼs head. The
underside of a handrail should be grooved to
receive the balustrade.

Margin

Normally 42mm when using a normal rise and
going.

Rise and Going

Pitch

The angle between the pitch line and the
horizontal should not exceed 42° for a private
stairway and 38° for a common stairway.
The pitch should not be less than 25° because a
stairway built at a shallow angle takes up much
more room and is more tiring to ascend.

Pitch-line

The line drawn from the floor or landing treads
in a flight of stairs.

Height of Handrails

Approved Document K states that flights should
have a handrail on at least one side if they are
less than 1m wide and on both sides if they are
wider than 1m.
There is no need for handrails beside the
bottom two steps of a stairway. Handrails should

Margin

-6-

STAIR JIG

Pitch line

Floor or landing

Rise

of step

Rise of flight

Going of flight

Going of

step

Headroom
of not less

than 2.0m
measured

vertically

above the

pitch line

Floor

Design

The number of steps is governed by the floor to
floor height which is usually fixed, and the flight
going space available. Alterations may present
difficulties but in new buildings the flight going
space is usually flexible.

Example:
You may want a straight flight stairway. Floor to
floor is 2.7m (2700mm) and going space is
unrestricted. (A rise of between 170mm and
200mm, would normally be satisfactory).
Assume rises of 175mm.
Number of risers = 2700/175 = 15.43.
Since a whole number is needed, try 15.
The actual rise (R) of each step will be 2700/15
= 180mm.
If going (G) of each step is 250mm, then 2R + G
= 610mm.

Restrictions on flights

Balustrades and Handrails

Since it is between 575mm and 630mm it meets
both the Building Regulation requirements and
BS 585.

Further information governing the design of
stairs can be found in Approved Document K of
the Building Regulations 1985 and BS BS 585:
1989 Wood Stairs.

Always refer to the latest copy of the
Building Regulations for all
specifications.

-7-

STAIR JIG

Margin

Pitch edge

90°

Base

Rise

Going

STAIR JIG

SUB-BASE

6
5

3

2

1

7

0

Line-up bush

Line-up pin

Pan head machine screw

Sub-base

OPERATION

STAIR/A ­CLOSED RISER

Cutters for use with Stair A

95

Recommended TCT Cutters to obtain best
results as below.

Tread Thickness Professional Craft Pro

For 22mm (7/8”) 32/10X1/2TC C240X1/2TC
For 25.4mm (1”) 32/11X1/2TC C241X1/2TC
For 28.1mm (1-1/8”) 32/12X1/2TC C242X1/2TC
For 32mm (1-1/4”) 32/13X1/2TC C243X1/2TC

Setting up the String without Newels

Machine strings to the required thickness and
width. (Do not cut its length). Keep both strings
with good faces upper most. Remembering that
a wall string will only be seen on one side. If
there is a bow in its length, then put this side
upper most. Gauge the bottom edge of the
string. A margin of 42mm, when using a normal
rise and going will leave a reasonable space
between the nosing and the edge of the string.
Mark the floor line, and using a beam compass
or a pair of large dividers (setting it to the pitch
size), step off the required number of treads and
risers. The last one will be the top nosing.
Square these lines over onto the other string. if
a newel is required, it is easier to set this out
using the square, bearing in mind the face of the
riser will be the centre of the newel. Setting out
can be eased by the construction of a margin
and pitch board made from plywood or
hardboard.

Setting up the Router

To line-up the Stair Jig sub-base onto the router
hold the router inverted. Insert the 1/2” shank of
the line-up pin into the 1/2” collet in the router,

Order Ref. Order Ref

and tighten collet nut. Place the line-up bush
over the end of the line-up pin with router still
inverted, plunge the router base down until the
line-up bush and pin appears through the central
aperture in the router base. Then lock the
plunge. Position the sub-base so that the line-up
bush fits into the central aperture of the sub­base and tighten the fixing screws to secure
sub-base to router base. Carefully release the
plunge and remove line-up pin and bush.

Isolate machine from power supply
before making any adjustments.

-8-

STAIR JIG

Setting the Template on the String

The template is placed face down on the string,
clamp bar side downwards and on the marked
out string. The clamp bar is fully adjustable, this
is carried out by loosening the barrel nuts (using
the two 13mm A/F spanners) on the upper most
side, and moving the bar.

It is important that the correct
spacing between the cutter and the
edge of the template must not be
overlooked. For this purpose spacer
blocks need to be made to be used
with the cutters recommended. The
size of the blocks are for a nominal
depth of cut of 12mm.

Craft Pro Professional Tread Spacer
Cutter Ref. Cutter Ref. thickness block size

C240X1/2TC 32/10X1/2TC 22mm (7/8”) 8.6mm
C241X1/2TC 32/11X1/2TC 25.4mm (1”) 7.5mm
C242X1/2TC 32/12X1/2TC 28mm (1-1/8”) 6.2mm
C243X1/2TC 32/13X1/2TC 32mm (1-1/4”) 4.6mm

This top right illustration shows the spacer block
being used to obtain the correct position for the jig.

Once the jig is set in the correct position, tighten
the clamp bar nuts. Then tighten the handle, but
do not over-tighten. Adjust the slider piece on
the base of the router to suit requirement and
tighten nut using the 10mm A/F spanner.

The closer the slider is to the cutter
the larger the nosing becomes.

Insert the appropriate cutter into the router. Set
the router to cut the depth of 12mm below the
template. This can be achieved by plunging the
router onto the workpiece through the template
and setting the routerʼs depth control system to
cut 12mm. The cut for the housings is carried
out in one pass.

Ensure working position is comfortable
and at a suitable height, and that the
stair string is clamped securely.

Ensure front clamp is tight and
secure, and periodically check
clamp bar nuts are tight.

-9-

Cutting the String

1

2

3

4

It is important to cut the risers first to avoid break
out on the short grain of the string.

The router will need to be moved backwards and
forwards along the template so as to let the
wood shavings free themselves from the
housing, also the middle section of the housing
will need to be cut away before moving onto the
next housing. Cut in the sequence as shown in
the diagram.

After cutting the housing, move the template up
the string and using the spacers set up again.
The clamp bar will not need to be adjusted. After
cutting the first string, transferring to the other
string is easily carried out by removing the clamp
bar and placing it on the opposite side of the jig.
The clamp assembly is also moved over to the
opposite side.

Cutting the Opposing String

It will be noticed that the bolts holding the bar
clamp bar protrude through both sides of the jig.
This is to enable the fence to be fitted to the
other side of the jig without the inconvenience of
re-setting when machining the opposite string.
Remove clamp bar by removing the hexagon
nuts only. Replace and tighten hexagon nuts.
Remove clamp fixing screw and replace clamp
assembly on other side of jig, using alternative
set of counterbored holes. After use remove sub­base from router. The jig does not require
disassembly.

Assembly of Treads and Risers

Treads and risers are cut to length and fitted
together using glued angle blocks. These can
now be fitted into the strings separately and
remember the width of each tread must be
accurately marked at each end and surplus
wood planed off.
The stairs can now be assembled, strutting off
the roof or from bench cramps. Ensure the
assembly is square and ʻout of twistʼ. Check all
treads are really tight, and only then wedge up
and screw through the risers into the tread.
Wedge the riser first, then follow with the tread
wedging. Wedges should be well glued and
driven in hard.

STAIR JIG

Start cutting the riser first to minimize
breakout. Care must be taken on short
grain to minimize breakout.

When using a 22mm (7/8”) tread,
there will be a small gap on the
underside of the nosing.

The trench cut into the string will have
an undercut due to the dovetail shape
of the cutters used. The tread will also
be a tight fit on the nosing, so
ensuring a neat joint is made.

Regularly remove wood shavings from
the housing.

-10-

STAIR/B - OPEN RISER

The Routing Jig for Open Staircases differs from
the one designed for closed staircases.

Basic Information before Setting-up

n Maximum fixed length of tread is 260mm.

n Maximum thickness of timber used for tread

is 32mm.

n Thickness of timber used for stub riser is

16mm.

n Maximum gap on stub riser to tread should

not exceed 100mm.

n Fixed depth of nosing is 17mm.

n Radius on nosing is 8mm.

n Radius on stub riser is 8mm.

n A ʻblock stopʼ can be made for fitting into

aperture in the jig to vary the depth of stub
riser.

n The guide bush supplied has a 24mm OD

and a 22mm ID. For a 32mm tread, the cutter
recommended is Ref. 4/21X1/2TC. This has a
cutting diameter of 16mm, and cutting length
of 37mm. The jig design will automatically
allow for the thickness of tread and stub riser
used in both instances.

Fitting the Sub-base to the Router

1. Fit the 10mm OD template guide bush to the
sub-base using the two countersunk screws.

2. Insert line-up pin with the 1/2” end into the

collet of the router and lightly tighten it.

3. With the router inverted, compress router

base until line-up pin projects approx. 19mm
(3/4”) out, and lock the base in that position.

4. Slide the sub-base onto the end of the pin

and screw up lightly the two fixing screws.

5. Ensure the pin rotates freely and tighten the

pan head machine screws to secure the sub­base to the router base.

6. The sub-base is now centralised and the

24mm guide bush can now be fitted using
the two countersunk machine screws.

7. Remove the line-up pin and keep safely for

future use.

STAIR JIG

Setting out the String

Machine strings to the required thickness and
width. Keep upper most the good faces, mark
the margin, the rise and the going as on a
closed string staircase, remembering that the
distance between the top of the tread and the
bottom of the stub riser must not exceed
100mm, and that the treads should overlap each
other by 15mm. (See approved document K1).

Fitting the Template

The template is fitted in the same manner as
Ref. STAIR/A template, except that the spacer
block needs to be 4mm.

Cutting the String

Machine the stub riser first and then the tread.

Extreme care must be taken because
you cannot have any break out. When
the first stair housing has been routed
out, loosen the clamp and slide the jig
to the next mark and then repeat the
operation.

Cutting the Opposing String

The jig is turned in the same manner as Ref.
STAIR/A.

After use, remove sub base from router using a
screwdriver. The jig does not require
disassembly.

Please store jig carefully.

-11-

ACCESSORIES

Please use only Trend original accessories.
Ref. 32/10 or C240 for 22mm (7/8”) tread.

Ref. 32/11 or C241 for 25.4mm (1”) tread.
Ref. 32/12 or C242 for 28.5mm (1-1/8”) tread.
Ref. 32/13 or C243 for 32mm (1-1/4”) tread.

MAINTENANCE

Please use only Trend original spare parts and
accessories.

The jig has been designed to operate over a
long period of time with a minimum amount of
maintenance. Continuous satisfactory operation
depends upon proper tool care and regular
cleaning.

Cleaning

n Regularly clean the jig and remove resin

build up on all threads.

Lubrication

n Your jig requires no additional lubrication.

Storage

n After use store jig in its packaging or if can

be hung on a wall hook.

STAIR JIG

ENVIRONMENTAL PROTECTION

Recycle raw materials instead of disposing as
waste.

Packaging should be sorted for environmental­friendly recycling.
The product and its accessories at the end of their
life should be sorted for environmental friendly
recycling.

GUARANTEE

The jig carries a manufacturers guarantee in
accordance with the conditions on the enclosed
guarantee card.

-12-

STAIR JIG

STAIR/A - SPARE PARTS LIST V4.0 01/2006

No. Qty. Desc. Ref.

1 1 Main Board for STAIR/A WP-SJA/01
2 1 Handle for Clamp Plastic M12 WP-SJ/02
3 1 Nut Hex M12 WP-NUT/12
4 1 Clamp Assembly WP-SJ/04
5 1 Aluminium Clamp Bar WP-SJ/05
6 4 Barrel Nut M8 WP-SJ/06
7 4 Washer 8.5mm x 15.8mm x 12.7mm WP-WASH/15
8 2 Stud M8 x 75mm WP-SJ/08

9 2 Washer 7.4mm x 24.6mm x 1.5mm WP-WASH/17
10 2 Nut Hex M8 WP-NUT/08
11 1 Machine Screw Cheese M8 x 10mm Slot WP-SCW/39
12 1 Sub-base STAIR/A WP-SJA/12
13 1 Line-up Bush for STAIR/A WP-SJA/13
14 1 Line-up Pin 1/2” for STAIR/A WP-SJA/14
15 1 Sub-base Slider for STAIR/A WP-SJA/15
16 0 Sub-base Complete with Slider WP-SJA/16
17 1 Washer 6.6mm x 11.7mm x 1.5mm WP-WASH/11
18 1 Hex Nut M6 WP-NUT/06
19 2 Machine Screw Pan M6 x 16mm Slot WP-SCW/27
20 1 Machine Screw Csk M6 x 16mm Pozi WP-SCW/26
21 1 Spanner 10mm/13mm A/F SPAN/1013
22 1 Spanner 13mm A/F SPAN/13
23 1 Manual MANU/SJ

-13-

STAIR JIG

STAIR/B - SPARE PARTS LIST V4.0 01/2006

No. Qty. Desc. Ref.

1 1 Main Board for STAIR/B WP-SJB/01
2 1 Handle for Clamp Plastic M12 WP-SJ/02
3 1 Nut Hex M12 WP-NUT/12
4 1 Clamp Assembly WP-SJ/04
5 1 Aluminium Clamp Bar WP-SJ/05
6 4 Nut Barrel M8 WP-SJ/06
7 4 Washer M8 WP-WASH/15
8 2 Stud M8 x 75mm WP-SJ/08

9 2 Washer M8 x 25mm WP-WASH/17
10 2 Nut Hex M8 WP-NUT/08
11 1 Machine Screw Cheese M8 x 10mm Slot WP-SCW/39
12 1 Line up Bush 16mm Dia. UNI/GB16
13 1 Guide Bush 24mm Dia GB24
14 1 Line-up Pin 1/2” UNI/PIN/1
15 2 Machine Screw Csk 2BA x 1/4” Slot WP-SCW/01
16 0 Circular Sub-base Complete GB/5
17 2 Machine Screw Pan M6 x 16mm Slot WP-SCW/27
18 1 Spanner 10mm/13mm A/F SPAN/1013
19 1 Spanner 13mm A/F SPAN/13
20 1 Manual MANU/SJ

-14-

STAIR JIG

10

9

10

9

5

6

7

2 3 4

8

6

7

8

1

7

6

11

23

21

22

STAIR JIGS

7
6

19

16

18

17
15

12

20

13

14

19

STAIR/A - SPARE PARTS DIAGRAM

Please use only Trend original spare parts.

V4.0 01/2006

-15-

STAIR JIG

2 3 4

11

10

9

10

9

5

6

7

8

6

7

8

1

7

6

22

18

19

STAIR JIGS

7
6

13

17

12

14

17

15

15

16

STAIR/B - SPARE PARTS DIAGRAM

Please use only Trend original spare parts.

V4.0 01/2006

-16-

Trend Machinery & Cutting Tools Ltd.

Odhams Trading Estate St Albans Road
Watford WD24 7TR England

Tel: [phone]
[e-mail]

MANU/SJ v7.0

© Copyright Trend 2014. No part of this publication may be reproduced, stored or transmitted in any form without prior permission.

Our policy of continuous improvement means that specifications may change without notice. Trend Machinery and Cutting Tools

cannot be held liable for any material rendered unusable or any form of consequential loss. E&OE

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